Danfoss VLT FCD 300 Series Design Manual

Download

At the end of this document you will find links to products related to this catalog. You can go directly to our shop by

clicking HERE. HERE

VLT® Decentral FCD 300 Design Guide Contents

Contents

1 The Decentral Concept

Introduction 5

Decentral Design Benefits 6

Application Examples 13

Product Design Guide 15

Ordering Form 21

PC Software Tools 22

Accessories 22

Communication 24

Good Installation Practice 27

Servicing the Danfoss Decentral Products 30

2 Introduction to FCD 300

Safety 32

High Voltage Warning 32

These Rules Concern your Safety 32

Warning against Unintended Start 32

Technology 33

CE Labelling 35

3 Installation

Mechanical Dimensions 37

Mechanical Dimensions, Motor Mounting 37

Mechanical Dimensions, Stand Alone Mounting 37

General Information about Electrical Installation 40

Electronics Purchased without Installation Box 41

EMC-Correct Electrical Installation 43

Earthing of Screened/Armoured Control Cables 44

Diagram 45

RFI Switches J1, J2 45

Electrical Installation - Description of 46

Location of Terminals 46

Mains Connection 47

Pre-Fuses 47

Motor Connection 48

Direction of Motor Rotation 48

Mains and Motor Connection with Service Switch 49

Connection of HAN 10E Motor Plug for T73 49

Parallel Connection of Motors 49

Motor Cables 50

MG.90.S1.02 - VLT® is a registered Danfoss trademark

Contents VLT® Decentral FCD 300 Design Guide

Motor Thermal Protection 50

Brake Resistor 50

Control of Mechanical Brake 51

Electrical Installation, Control Cables 51

Connection of Sensors to M12 Plugs for T63 and T73 52

Electrical Installation, Control Terminals 52

PC Communication 53

Relay Connection 53

Connection Examples 54

4 Programming

LCP Control Unit 61

The LCP 2 Control Unit, Option 61

Parameter Selection 65

Parameter Group 0-** Operation & Display 66

Setup Configuration 67

Parameter Group 1-** Load and Motor 72

DC Braking 75

Parameter Group 2-** References & Limits 79

Handling of References 79

Reference Function 82

Parameter Group 3-** Inputs and Outputs 85

Parameter Group 4-** Special Functions 91

PID Functions 93

Handling of Feedback 94

Serial Communication 98

Control Word According to FC Protocol 103

Status Word According to FC Profile 104

Fast I/O FC-Profile 105

Control Word According to Fieldbus Profile 106

Status Word According to Profidrive Protocol 107

Parameter Group 5-** Serial communication 109

Parameter Group 6-** Technical Functions 115

5 All About FCD 300

Brake Resistors 119

Dynamic Braking 119

Internal Brake Resistor 123

Special Conditions 126

Galvanic Isolation (PELV) 126

Earth Leakage Current and RCD Relays 126

Extreme Operating Conditions 127

MG.90.S1.02 - VLT® is a registered Danfoss trademark

119

VLT® Decentral FCD 300 Design Guide Contents

dU/dt on Motor 127

Switching on the Input 127

Acoustic Noise 128

Temperature-Dependent Switch Frequency 128

Derating for Air Pressure 129

Derating for Running at Low Speed 129

Motor Cable Lengths 129

Vibration and Shock 129

Air Humidity 129

UL Standard 129

Efficiency 130

Mains Supply Interference/Harmonics 130

Power Factor 131

Emission Test Results according to Generic Standards and PDS Product Standard 131

Immunity Test Result according to Generic Standards, PDS Product Standards and Basic Standards

131

Aggressive Environments 132

Cleaning 132

Status Messages 134

Warnings/Alarm Messages 134

Warning Words, Extended Status Words and Alarm Words 136

General Technical Data 137

Available Literature 141

Factory Settings 142

Index

146

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1 The Decentral Concept

1.1 Introduction

Danfoss was the world's first company to manufacture and supply frequency converters for infinitely variable speed control of three-phase AC motors.

Until then, AC motors had to operate at the speed determined by the frequency of the main power supply.

Production of frequency converters started in 1968. The first frequency converter was also the first decentralised drive as it was placed next to the motor.

The first frequency converter was totally enclosed and filled with silicone oil for cooling, as semiconductors of that time were very inefficient. The enclosure

design was made for mounting the drive directly in the application next to the motor. Temperature, water, cleaning agents, dust and other environmental

factors were also no problem, even in harsh environments.

Semiconductors improved during the next decades. Air-cooling showed sufficient and oil cooling was abandoned. At the same time use of frequency

converters grew significantly. PLCs gained a footing for advanced application control and it became common practice to install all frequency converters

in one cabinet, rather than several places in the factory.

Continuing improvements in semi-conductors and related technologies - such as fieldbus technology - now again makes it feasible to consider installing

drives close to the motors, achieving the benefits of decentralised installation without the disadvantages from the first oil-filled frequency converters.

Development of automation in industry is based on the ability to send and receive data from the application needed to control the processes. More and

more sensors are installed and more and more data is submitted to the central PLC control. This trend depends on increased use of fieldbus systems.

Industrial sources often claim that up to 30 % of all drive installations will be installed decentrally within the next few years and the trend towards

distributed intelligent control is undisputed as more and more components and applications are developed for decentralised installation.

This book is a general introduction to basic features of decentralised installation philosophies for motor controls and differences from the centralised

concept. It will help you choose the most suitable concept and guide you through the process of selecting the appropriate products.

Finally we have included comprehensive information about the Danfoss decentralised products.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.2 Decentral Design Benefits

In the following we will concentrate on describing decentralised installation of frequency converters, referred to here as motor controls.

There are two topologic concepts for the layout of motor control installations in a plant, in the following referred to as “centralised” and “decentralised”

installations. The two typologies are illustrated in the figure.

In a centralised installation:

- motor controls are placed in a central place

In a decentralised installation:

- motor controls are distributed throughout the plant, mounted

on or next to the motor they control

Decentralised does not mean

enormous size can now be reduced thanks to innovative designs of the

components that will be placed decentralised. There will continue to be

a need for cabinets for power distribution and for overall intelligence, and

there are areas, particularly in the process industry with areas such as

explosion protection, where centralised cabinets continue to be the pre-

ferred solution.

control cabinet free

, but merely that their

Placing the advanced and reliable electronics needed to ensure a smooth,

responsive and economical operation of the motor next to – or on – the

motor facilitates modularisation and reduces cabling costs and EMC prob-

lems dramatically. Further benefits:

Illustration 1.1: Centralised versus decentralised installa-

tions

• Space-consuming motor control cabinets in long rows of centralised panels are eliminated

• Reduced efforts for building in and wiring long screened motor cables where special attention on EMC terminations is required

• Heat dissipation from power electronics is moved from the panel into the plant

• Standardised machine elements by modularisation reduces design time and time to market

• Commissioning is easier and faster

Decentralised motor control is rapidly gaining ground despite of the advantages of the centralised control concept:

• no need for extra space around the motor or close to the motor

• no control cable wiring into the plant

• independence of plant environment

1.2.1 Direct Cost Savings

Motor controls for decentralised installations must be built to meet the harsh conditions in manufacturing areas - especially such conditions found in the

food and beverage industry, where frequent wash downs are required. This of course increases the cost of the drive. This increase will be more than set

off by savings in expenses for cabinets and cables.

The cable saving potential is considerable, as will be demonstrated by the following example.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

The figure illustrates an installation with motors distributed in a number of rows with several motors in each, as is the situation in for example parallel

bottling or baking lines in the Food and Beverage industry. This example shows the need for power cables from the centrally placed drives to the motors.

Illustration 1.2: Centralised installation

The drives are distributed equidistant with the distance L between each drive and the distance h between each row and also with a distance h from the

centralised power entry/cabinet location to the first row. There are n rows, and N drives in each row.

Illustration 1.3: Decentralised installation

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

The Illustration 1.4 shows how the three-phase mains cable can be dis-

tributed with power looping from one motor (drive) to the next. The cable

saving potential is illustrated in Illustration xx. Given a distance of 10 m

between each motor and 20 m between each line, the potential cable

savings as a function of the number of motors and number of lines shows

of the figure.

Illustration 1.4: Cable saving potential in an illustrative in-

stallation

The saving potential in power cable length alone is substantial. The figure only illustrates the potential concerning power cables. Issues like unscreened/

screened cables and cable dimensions also ads to the benefits of decentralised installations.

Real case

Calculations on a specific, typical bottling line with 91 pieces of 1.5 kW motors, taking the cable dimensioning into account, showed the following saving

potential in cables and terminations:

• Cable terminations are reduced from 455 to 352

• EMC cable terminations are reduced from 364 to 182 by using motor controls with integrated service switches

• Power cable length reduced from 6468m to 1180m, a reduction of 5288m, and it is converted from screened cables to standard installation

cables

For details consult the following chapter on

Good installation practice

1.2.2 Design Savings

End users want to postpone the final decision for new equipment - and to start production as fast as possible once a decision has been made. Payback

time and time to market must be reduced. This squeezes both the design phase and the commissioning phase.

Modularisation can minimise lead-time. Even manufacturers of large production equipment or lines use modularisation to reduce lead-time. Up to 40-50

% on the total time from design to running production can be saved.

The concept of modularisation is known from equipment like PC’s and cars. Modules with well-described functionalities and interfaces are used in these

products. The same concept can be applied to manufacturing, even though specific physical constraints play a role.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

Production equipment is often built from different basic building blocks, each kind employed at several places in the installation. Examples include various

types of conveyor sections and machinery like mixers, scales, fillers, labellers, palletisers, packaging machines etc.

Illustration 1.5: Centralised cabinet

In a truly modular machine, all basic elements are self-confined and need nothing but electricity, water, compressed air or similar to function.

Modularisation therefore requires the distribution of intelligence to the individual sections and modules.

Sure, centralised installations can be modualarised, but then motor controls will be physically separated from the rest of the module.

Fewer cabinets, cooling and cable trays

Further savings will result from smaller cabinets, less cabinet cooling and fewer cable trays. Motor controls generate heat and are often mounted side by

side due to limited space, as illustrated in illustration 1.5. Forced cooling is therefore required to remove the heat.

Less Commissioning

Time spend commissioning at the end-user is significantly reduced using

decentralised solutions - especially when fieldbus communication is com-

bined with decentralised motor controls.

An Australian brewery has installed a line of 96 decentralised drives from Danfoss connected by DeviceNet. An excessive amount of time was saved as the commissioning of the variable speed drives was done in a few days. The brewery estimates a saving exceeding AUD 100,000 compared to traditional centralised installation.

Illustration 1.6: Decentralised brewery installation

Minimal Need for Additional Fieldbus Cables

Power cable savings are not offset by the additional cost for expensive fieldbus cables. Fieldbus cables will be extended in a decentralised installation,

but since fieldbus cables will be distributed in the plant anyway to connect sensors or remote I/O-stations, the extension will be limited. Decentralised

products from Danfoss can even be used as remote I/O stations to connect sensors to the fieldbus and reduce direct costs even more.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.2.3 Ready-Installed Intelligence

The function of machinery and applications is typically tested at the suppliers. Machines are built, tested, calibrated and taken apart for transportation.

The process of rebuilding the application at the production site is considerably simplified by shipping it in modules with built-in motor controls, as rewiring

and testing is time consuming and calls for skilled personnel. Using ready-installed, decentralised installations reduces both time and risk as wiring for

motor, control and sensors are already in place and maintained during transportation. The need for highly skilled experts is reduced and local labour can

do a larger part of the installation. The commissioning costs and OEM resources on-site will be reduced.

1.2.4 Improved EMC

Electrical noise emitted is proportional to cable length. The very short - or eliminated - cable between motor control and motor in decentralised installations

therefore reduces emitted electrical noise. In decentralised installations, the machine builder normally mounts cables between motor controls and motors

in the machine leaving only power cables and fieldbus cables with no EMC emission to be installed at the production site. The risk of electrical noise from

motor controls to disturb other electrical equipment caused by a faulty installation will diminish and you avoid time-consuming fault finding in the com-

missioning phase, where time frame is tight.

1.2.5 Adapts to Standard and Special Motors

The FCD 300 is designed to control standard AC asynchronous motors.

Its flexibility allows it also to adapt to special motor types. An example is

the AMT feature (Automatic Motor Tuning). Combining Danfoss frequen-

cy converters to Danfoss geared motors makes it even easier as they fit

mechanically and the motor data are already stored in the FCD 300 mem-

ory. Combined motor-drives are provided pre-assembled directly from

Danfoss removing the need for mechanical fitting between motor and

control.

Illustration 1.7: Danfoss geared motor with FCD 300

1.2.6 Minimum Thermal Losses

Danfoss frequency converters feature the unique Voltage Vector Control (VVC) switching principle to generate motor voltages. Due to the VVC principle,

power losses in the motor are similar or less than the losses in a motor connected to mains. Thermal losses are minimised and overheat is prevented. At

the same time, the VVC principle ensures nominal torque at nominal speed and eliminates bearing currents.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1.2.7 Environmental Considerations

Drives – both centrally-mounted and distributed in the plant - are exposed to the environment. As motor controls handle high voltages and currents at

the same time they must be protected from dust and humidity so that they do not fail or break down. Both manufacturers and installers must take account

of this and Danfoss Drives have designed the decentralised products with a deep concern in both aspects.

Decentralised motor controls must also meet increasing demands in respect of hygiene levels in pharmaceutical industries and in food- and beverage

production in particular, where drives are exposed to cleaning agents for extensive periods of time, high pressure hosing and the like. The exterior of the

decentralised motor controls must be designed in such a way as to achieve this. Complicated heat sinks as illustrated in the figure must be avoided as it

is difficult to clean and not resistant to common cleaning agents.

Danfoss decentralised drives are designed to meet the requirements as shown in illustration 1.9. There are no hard-to-clean places, blind plugs have no

notches or indentations and two-layer robust surface treatment - tested to withstand commonly used cleaning agents - protects the housing.

Illustration 1.8: Non-cleaning friendly pin fin heat sink versus the easy to clean Danfoss solution

All corners are rounded to prevent dust sticking, and the distance between ribs allows high-pressure air cleaning, hosing and easy cleaning with a brush.

These concerns are more or less irrelevant if not applied to all elements and standard AC motors are normally designed without these concerns in mind

– stressed by integrated fans and cooling ribs both difficult to clean. Danfoss has met the challenge by designing a range of aseptic geared motors. These

motors have no fans and only smooth surfaces. An IP65 enclosure class is standard as is the special CORO coating resistant to acid, alkali and cleaning

agents used in for instance food and beverage industry. See the photo of an example of the aseptic geared motor series in Illustration 1.10.

Illustration 1.9: Aseptic Danfoss geared motor

Electrical contact can cause galvanic corrosion under wet or humid conditions. This can occur between housing (Aluminium) and screws (stainless steel).

One possible consequence is that screws become stuck and therefore impossible to unfasten in a maintenance situation. Galvanic corrosion will not be

found on Danfoss decentralised products, as the housings are fully coated and nylon washers underneath the screws protects the coating. The complete

coating and the unique gasket design prevent pitting corrosion, which can occur under gaskets.

Tightly enclosed equipment is susceptible to water build-up inside the enclosure. This is especially the case where equipment is exposed to ambient

temperature differences under wet conditions. As a decreasing ambient temperature lowers the surface temperature inside the enclosure, water vapour

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

tends to condensate. At the same time pressure inside the enclosure will drop and cause humid air from the outside to penetrate non-hermetic polymer

gasket materials and cable glands. When the enclosure heats up again, only the vaporised water will escape, leaving more and more condensed water

inside the enclosure. This can lead to water build-up inside the enclosure and eventually cause malfunction. The phenomenon is illustrated in the figure,

with a cyclic temperature fluctuation.

Illustration 1.10: The pumping effect in tight enclosures

Build-up of water inside enclosures can be prevented by membranes that prevents fluids to penetrate but allows for vapour to pass, as known from fabrics

used for outdoor clothing. A special cable gland with this kind of material is offered by Danfoss to eliminate this problem. The cable gland should be used

in applications exposed to frequent temperature fluctuations and humid environments as in equipment used only during daytime where the inside tem-

perature tends to fall to the ambient temperature during the night.

1.2.8 Installation Flexibility

Danfoss decentralised solutions offers exceptional installation flexibility. Flexibility is supported by a number of benefits:

• Mountable on Danfoss geared motors

• Decentralised panel mounting possible

• Handheld control panels

• PC software for configuring and logging

• Single or double sided installation

• Service switch optional

• Brake chopper and resistor optional

• External 24 V backup supply optional

• M12 connections for external sensors optional

• Han 10E motor connector optional

• Fieldbus support (Profibus DP V1, DeviceNet, As-Interface)

• Compatibility with standard mains systems (TN, TT, IT, delta grounded)

For further details see the chapter on

The Decentralised Product Range

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1.3 Application Examples

Danfoss has completed a wide range of applications in many different industries. This has given us a valuable experience that has influenced the latest

development of our decentralised products. In the following we provide illustrative examples of actual installations using Danfoss decentralised products,

and the benefit and value these provide for the customer in these installations.

1.3.1 Beverage - Bottling Line

Illustration 1.11: FCD 300 on bottling conveyor

Benefits:

• Reduced switchboard space as all drives are mounted in the field

• Reduced cabling as several drives can be supplied from same circuit

• Ease of commissioning over the fieldbus as the protocol allows for transfer of complete parameters. Once one drive is set up, its basic program

can be copied to any other decentralised drive

• The FCD motor performance is markedly superior to all other types

• The FCD can be retrofitted to existing motors of nearly any brand or type

• The aseptic IP 66 enclosure is ideal for damp bottling hall conditions

• All in one box: e.g. service switch, Profibus and power looping

Illustration 1.12: FCD 300 on bottling conveyor

1.3.2 Beverage - Packaging Machine

Benefits:

• Distributing motor controls in the application releases space for

other purposes in the switchboard

• The number of drives in an application can be increased without

extending the switchboard

• IP66 enclosure, easy to clean and resistant to strong cleaning

liquids

• Same flexibility as with centrally mounted motor controls. De-

centralised motor controls can be adapted for all standard AC

motors, and feature same user interface and same numbers on

connectors

•Profibus integrated

Illustration 1.13: Decentral motor controls integrated in

packaging machine

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.3.3 Food - Cocoa Powder Plant

Illustration 1.14: Old solution: Motor control - panel moun-

ted decentrally

Benefits:

• Easy to expand plant capacity

•No need for switchboard

• Visible LED for status

• Service switch integrated in the unit

• High enclosure rating IP66

• Low cost installation

• Less space needed for the new solution

1.3.4 Food Conveyor

Illustration 1.15: New Solution: Genuine decentralised mo-

tor control

Illustration 1.16: Efficient space utilisation in the food in-

dustry with decentralised motor controls from Danfoss

Benefits:

• The number of drives in an application can be raised without extending the switchboard

• IP66 enclosure, easy to clean and resistant to strong cleaning liquids

• Dirt-repelling surface and design prevents dirt and product remains on the drive

• Motor or wall mount units available

• Same flexibility as with centrally mounted motor controls. Decentralised motor controls adapt to all standard AC motors, features same user

interface and same numbering on connectors

• Profibus integrated

MG.90.S1.02 - VLT® is a registered Danfoss trademark

Illustration 1.17: Efficient space utilisation in the food in-

dustry with decentralised motor controls from Danfoss

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1.3.5 Automotive Industry - Hoists and Conveyors

Benefits:

• Simple installation

• AS-i or Profibus control optional

• Sensor input available within the physical size of the unit

• Separate 24V supply for sensors and bus

• Brake supply and control build in

• Easy pluggable remote control panel

• Connectors for looping (T-connector) integrated in the installa-

tion box

• Low installation and component costs

• No additional and expensive EMC connectors needed

• Compact and space saving

• Easy to install and commission

• Input for motor thermistor monitoring

1.3.6 Retrofit in Existing Applications

Benefits:

• No need for a big control cabinet thanks to the decentralised

motor controls.

• No expensive wiring: All motors use existing power cables, pipes

and local switches

• All motor controls can be controlled from the existing centralised

cabinet via Profibus

Illustration 1.18: Retrofitting on existing application with

speed control

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.4 Product Design Guide

1.4.1 The Decentralised Product Range

The Danfoss decentralised products comprise for Frequency Converters VLT Decentral FCD 300 and VLT Drivemotor FCM 300 in their different installation/

mounting concept. This Design Guide gives detailed information about the FCD 300 products only. For further information about FCM 300 please see the

FCM Design Guide: MG03Hxyy

VLT

Decentral FCD 300:

0.37 - 3.3 kW, 3 x 300 - 480 V

Main applications

- Conveyor in wash down areas

- Packages conveyors

- In/out feed conveyors

Drive Motor FCM 300:

VLT

0.55 - 7.5 kW, 3 x 380 - 480 V

Main applications

- Fans (Air handling units)

- Pumps

- Air conveyors

1.4.2 Flexible Installation Options

Danfoss decentralised products can be adapted for mounting using the following options - each offering specific benefits:

FCD 300:

1. Stand alone close to the motor (

• Free choice of motor brand

• Easy retrofitting to existing motor

• Easy interfacing to motor (short cable)

• Easy access for diagnosis and optimal serviceability

2. Mounted directly on the motor (

• Fair choice of motor brands

• No need for screened motor cable

wall-mounted

motor-mounted

)

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

3. “Pre-mounted” on Danfoss Bauer geared motors

• A fixed combination of motor and electronics supplied by one

supplier

• Easy mounting, only one unit

• No need for screened motor cable

• Clear responsibility regarding the complete solution

As the electronic parts are common - same function of terminals, similar

operation and similar parts and spare parts for all drives - you are free to

mix the three mounting concepts.

FCM 300:

4. Motor integrated (FCM 300 Solution)

• Motor and drive perfectly matched

• Optimised compact unit

• No need for programming motor data

1.4.3 Configuring a Product

The decentralised motor control FCD 300 series are configured with a type code string (

FCD 3xx P T4 P66 R1 XX Dx Fxx Txx C0

Mains voltage

FCD 300 is available for connection to mains voltage 3 phase 380-480 V.

Choice of frequency converter

The frequency converter must be chosen on the basis of the present mo-

tor current at maximum loading of the unit. The frequency converter's

rated output current I

motor current.

must be equal to or greater than the required

INV.

Type [kW] [HP] 303 0.37 0.50 305 0.55 0.75 307 0.75 1.0 311 1.1 1.5 315 1.5 2.0 322 2.2 3.0 330 3.0 4.0 335** 3.3 5.0*

* at mains/motor voltage 3 x 460 - 480 V ** t

1.4.4 Enclosure

FCD 300 units are protected against water and dust as standard.

see also Ordering

max. 35° C

amb

Typical shaft output

INV.

1.4.5 Brake

FCD 300 is available with or without an integral brake module. See also the section entitled

EB version including mechanical brake control/supply.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

Brake Resistors

for ordering a brake resistor.

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.4.6 24 V External Supply

Back up of control supply with 24 V DC is available in EX and EB versions of FCD 300.

1.4.7 RFI Filter

FCD 300 has an integral 1A RFI-filter. The integral 1A RFI filter complies with EMC standards EN 55011-1A. See the sections

section

for further details.

Cable lengths

and

Cross

1.4.8 Harmonic Filter

The harmonic currents do not affect power consumption directly, but they increase the heat losses in the installation (transformer, cables). That is why

in a SYSTEM with a relatively high percentage of rectifier load it is important to keep the harmonic currents at a low level so as to avoid a transformer

overload and high cable temperature. For the purpose of ensuring low harmonic currents, the FCD 300 units are fitted with coils in their intermediate

circuit as standard. This reduces the input current I

by typically 40 %.

RMS

1.4.9 Display Unit

On the FCD 300 unit there are 5 indicator lamps for voltage (ON), warning, alarm, status and bus.

In addition, a plug for connecting an LCP control panel is available as an option. The LCP control panel can be installed up to 3 metres away from the

frequency converter, e.g. on a front panel, by means of a mounting kit.

All displays of data are via a 4-line alpha-numerical display, which in normal operation is able to show 4 operating data items and 3 operation modes

continuously. During programming, all the information required for quick, efficient parameter Setup of the frequency converter is displayed. As a sup-

plement to the display, the LCP has three indicator lamps for voltage (ON), warning (WARNING) and alarm (ALARM). Most of the frequency converter's

parameter Setups can be changed immediately via the LCP control panel. See also the section entitled

The LCP control unit

in the Design Guide.

1.4.10 Desired Features

Desired features are selected by specifying the corresponding fields in the string (xx). The choices - and detailed explanation - shown in the two tables.

Short form explanations of a feature are

For technical details and data, see

Installation Box Variants

Connections on right side

Gland holes for all

one direction only.

Connections on two sides

Gland holes for

Both

metric thread

Pluggable

The bottom section contains Cage Clamp connectors and looping facilities for power and fieldbus cables well protected against dust, hosing and cleaning

agents.

cable inlets

and

connection and the possibility of looping mains power supply between drives (4 mm2 line).

are machined on the

are machined

NPT thread

italic

Technical data

is available (selected variants).

right side

on both sides

only (seen from motor drive end). This version is useful where cable inlet is required from

allowing for cable inlet from both directions.

Service switch

mounted on the right side (seen from motor drive end). A lockable switch integrated in the enclosure – disconnecting the motor or drive.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

sensor plugs

Pluggable connection of remote I/O such as sensors and external supply of these.

, M12 on the right side (seen from motor drive end). Looping through of 2 X 24 V external supply.

Motor plug

Display connector

, HARTING 10 E on the right side (seen from motor drive end) wired according to DESINA standard (

for external pluggable connection of the local control panel for operating and programming. Can also be used for PC connection.

see electrical installation

1.4.11 FCD 300 Decentralised Frequency Converter

FCD 300: Combinations of versions

Installation features

Mounting

Cable inlets Right side Double sided

Service switch - - - - X X X -

Sensor plugs - - - - - - 4XM12 4XM12

Motor plug - - - - - - - Harting 10E

ATEX 22

Metric thread

(NPT thread)

Display connector Not available

Functional features Basic functions (see be-

+ 24 ext. back up EX

+ 24 ext. back up + Dy-

namic brake + Brake

Communication

AS-interface F70

Profibus 3 MB F10

Profibus12 MB F12

DeviceNet F30

low)

control

RS 485

Motor Wall Motor Wall Motor Wall Wall Wall

X X X X - - - -

Ordering codes FCD 3xx P T4 P66 R1 XX Dx Fxx Txx C0

T11

(-)

only D0

T51

(-)

T12

(T16)

T52

(T56)

T22

(T26)

DC DC included DC included

F00

T62

(T66)

T63

(-)

T73

(-)

* ATEX 22: Approved for use in dusty environments according to the ATEX directive (ATmosphère EXplosive)

Basic functions

Adjustable motor speed

Defined speed ramps - up and down

Features and operation concepts similar to other VLT series

Electronic motor protection and reversing are always included

Extended functionality

24 V external back up Brake control Dynamic braking

of control and communication

and supply of electromechanical brake

(brake resistor is optional

see Brake Resistors

MG.90.S1.02 - VLT® is a registered Danfoss trademark

)

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.4.12 Ordering

The below explanations refer to the ordering form.

Power sizes (positions 1-6):

0,37 kW – 3,3 kW (See power size selection table)

Application range (position 7):

•P-process

Mains voltage (positions 8-9):

• T4 - 380-480 V three phase supply voltage

Enclosure (positions 10-12):

The enclosure offers protection against dusty, wet, and aggressive environment

• P66 - Protected IP66 enclosure (exceptions see Installation box T00, T73)

Hardware variant (positions 13-14):

• ST - Standard hardware

• EX - 24 V external supply for backup of control card

• EB - 24 V external supply for backup of control card, control and supply of mechanical brake and an additional brake chopper

RFI filter (positions 15-16):

• R1 - Compliance with class A1 filter

Display unit (LCP) (positions 17-18):

Connection possibility for display and keypad

• D0 - No pluggable display connector in the unit

• DC - Display connector plug mounted (not available with “only right side” installation box variants)

Fieldbus option card (positions 19-21):

A wide selection of high performance fieldbus options is available (integrated)

• F00 - No fieldbus option built in

• F10 - Profibus DP V0/V1 3 Mbaud

• F12 - Profibus DP V0/V1 12 Mbaud

• F30 - DeviceNet

• F70 - AS-interface

Installation box (positions 22-24):

• T00 - No Installation box

• T11 - Installation box, motor mount, metric thread, only right side

• T12 - Installation box, motor mount, metric thread, double side

• T16 - Installation box, motor mount, NPT thread, double side

• T22 - Installation box, motor mount, metric thread, double side, service switch

• T26 - Installation box, motor mount, NPT thread, double side, service switch

• T51 - Installation box, wall mount, metric thread, only right side

• T52 - Installation box, wall mount, metric thread, double side

• T56 - Installation box, wall mount, NPT thread, double side

• T62 - Installation box, wall mount, metric thread, double side, service switch

• T66 - Installation box, wall mount, NPT thread, double side, service switch

• T63 - Installation box, wall mount, metric thread, double side, service switch, sensor plugs

• T73 - Installation box, wall mount, metric thread, double side, motor plug, sensor plugs, Viton gasket

Coating (positions 25-26):

The IP66 enclosure offers protection of the drive against aggressive environments, which practically eliminates the need for coated printed circuit boards.

• C0 - Non coated boards

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1.4.13 Ordering Form

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.4.14 PC Software Tools

PC Software - MCT 10

All drives are equipped with a serial communication port. We provide a PC tool for communication between PC and frequency converter, VLT Motion

Control Tool MCT 10 Set-up Software.

MCT 10 Setup Software

MCT 10 has been designed as an easy to use interactive tool for setting parameters in our frequency converters.

The MCT 10 Set-up Software will be useful for:

• Planning a communication network off-line. MCT 10 contains a complete frequency converter database

• Commissioning frequency converters on line

• Saving settings for all frequency converters

• Replacing a drive in a network

• Expanding an existing network

• Future developed drives will be supported

MCT 10 Setup Software support Profibus DP-V1 via a Master class 2 connection. It makes it possible to on line read/write parameters in a frequency

converter via the Profibus network. This will eliminate the need for an extra communication network.

The MCT 10 Setup Software Modules

The following modules are included in the software package:

MCT 10 Setup Software

Setting parameters Copy to and from frequency converters Documentation and print out of parameter settings incl. diagrams

Ordering number:

Please order your CD containing MCT 10 Set-up Software using code number 130B1000.

1.4.15 Accessories

Type Description Ordering no. LCP2 control unit Alfanumeric display for programming the frequency converter. 175N0131 Cable for LCP2 control unit Preconfectioned cable to be used between frequency converter and LCP2. 175N0162 LCP2 remote-mounting kit Kit for permanent mounting of the LCP2 in an enclosure (incl. 3 m cable, excl. LCP2) 175N0160 LOP (Local Operation Pad) LOP can be used for setting the reference

and start/stop via the control terminals

Motor adaption plate Aluminium plate with holes drilled to fit the FCD box. Must be fitted locally for the actual

motor. Plate for adapting to non Danfoss Bauer motors Venting Membrane Membrane preventing water build-up due to condensation inside enclosures. 175N2116 Plug kit for LCP2 The installation box can be mounted with or without a sealed connector (IP66) to connect

the common display LCP2 (code DC). The connector can be ordered separately (Not for

single sided installation boxes). Motor star terminal Six wires must be either star- or delta-connected to supply an AC motor. Delta connection

is possible in the standard motor terminal. Star connection requires a separate terminal. Installation kit Installation kit for mounting in panels 175N2207 5 pole M12 plug for DeviceNet The plug, micro type, M12 can be mounted into the gland holes of the installation box.

The plug can also be used for other purposes such as connection of sensors. Viton Gasket for FCD 303-315 With this gasket the FCD can be used in painting shops in e.g. the automotive industry. 175N2431 Viton Gasket for FCD 322-335 With this gasket the FCD can be used in painting shops in e.g. the automotive industry. 175N2450 Data Cable for PC communication Connects a converter (e.g. USB) to the LCP2 connector. 175N2491 PCB Terminal Terminal for 24 V distribution 175N2550 PE ext. terminal Stainless steel 175N2703 2m drop cable for DeviceNet The cable can be mounted inside the terminal box, and connects to the DeviceNet trunk

line via a micro connector (M12). 5 pole M12 plug for AS-interface The plug, M12, can be mounted into the gland holes of the installation box. 175N2281

175N0128

175N2115

175N2118

175N2119

175N2279

195N3113

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1.4.16 Brake Resistors

Internally mountable brake resistors for low duty cycle braking. The resistors are self-protecting.

Single pulse braking approx. 0,6 kJ each 1-2 minutes.

Internal brake resistors cannot be mounted in FCD 303-315 with service switch.

Type FCD 303 0.37 520 1720 5 175N2154 305 0.55 405 1720 3 175N2154 307 0.75 331 1720 2 175N2154 311 1.1 243 350 1.5 175N2117 315 1.5 197 350 1 175N2117 322 2.2 140 350 1 175N2117 330 3.0 104 350 0.7 175N2117 335 3.3 104 350 0.5 175N2117

Type P

303 (400 V) 0.37 520 830  / 100 W 20 1000 2397 305 (400 V) 0.55 405 830  / 100 W 20 1000 2397 307 (400 V) 0.75 331 620  / 100 W 14 1001 2396 311 (400 V) 1.10 243 430  / 100 W 8 1002 2395 315 (400 V) 1.50 197 310  / 200 W 16 0984 2400 322 (400 V) 2.20 140 210  / 200 W 9 0987 2399 330 (400 V) 3.00 104 150  / 200 W 5.5 0989 2398 335 (400 V) 3.30 104 150  / 200 W 5.5 0989 2398

Table 1.1: Flatpack brake resistors IP 65

Type 303-315 2402 322-335 2401

P motor kW Rmin R Duty cycle approx. % Code no.

motor

[kW]

MIN

[]

Size [] / [W]

per item

Duty cycle % 2 wires

Order no. 175Uxxxx

Order no.: 175Nxxxx

Screened cable

Order no. 175Nxxxx

Table 1.2: Mounting bracket for brake resistors

VLT type

303 (400 V) 120 0,37 520 830 0,45 0,7 1976 1,5* 305 (400 V) 120 0,55 405 830 0,45 0,7 1976 1,5* 307 (400 V) 120 0,75 331 620 0,32 0,7 1910 1,5* 311 (400 V) 120 1,1 243 430 0,85 1,4 1911 1,5* 315 (400 V) 120 1,5 197 330 0,85 1,6 1912 1,5* 322 (400 V) 120 2,2 140 220 1,00 2,1 1913 1,5* 330 (400 V) 120 3,0 104 150 1,35 3,0 1914 1,5* 335 (400 V) 120 3,3 104 150 1,35 3,0 1914 1,5*

Table 1.3: Coiled wire brake resistors Duty-cycle 40%

*Always observe national and local regulations

motor

min

rec

b, max

Intermittent braking period time

[seconds]

: Rated motor size for VLT type : Minimum permissible brake resistor : Recommended brake resistor (Danfoss) : Brake resistor rated power as stated by supplier

motor

[kW]

[Ω]

min

R [Ω]

b, max

[kW]

Therm.relay

[Amp]

rec

Code number

175Uxxxx

Therm. relay : Brake current setting of thermal relay Code number : Order numbers for Danfoss brake resistors Cable cross section : Recommended

minimum value based upon PVC insulated cober cable, 30 degree Celsius am-

bient temperature with normal heat dissipation

See dimensions of Coiled wire brake resistors in instructions MI.90.FX.YY

Externally mounted brake resistors in general

No use of aggressive cleaning solvents. Cleaning solvents must be pH neutral.

Cable cross section

[mm

]

Dynamic Braking

See

for dimensioning of brake resistors.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.5 Communication

1.5.1 Information and Communication

Growth in the world of automation is increasingly based on information technology. Having reformed hierarchies, structures and flows in the entire office

world, use of information technology opens for a similar restructuring of industrial sectors ranging from process and manufacturing industries to logistics

and building automation.

Devices capability of communication and continuous transparent channels for information are indispensable in automation concepts of the future.

IT is an evident means for optimisation of system processes, leading to improved exploitation of energy, materials and investment.

Industrial communication systems are a key function in this respect.

Cell level

Programmable controllers such as PLC and IPC communicate at cell level. Large data packets and numerous powerful communication functions provide

information flow. Smooth integration into company-wide communication systems, such as Intranet and Internet via TCP/IP and Ethernet are important

requirements.

Field level

Distributed peripherals such as I/O modules, measuring transducers, drive units, valves and operator terminals communicate with the automation systems

via an efficient, real-time communication system at field level. Transmission of process data is performed in cycles, while alarms, parameters and diagnostic

data have to be transmitted acyclically if necessary.

Sensor/actuator level

Binary signals from sensors and actuators are transmitted purely cyclically via bus communication.

1.5.2 Profibus

Profibus is a vendor-independent, open field bus standard for use in a wide range of applications in manufacturing and process automation. Vendor-

independence and openness are ensured by the international standards EN 50170, EN 50254 and IEC 61158.

Profibus communicates between devices from different manufacturers without specific interface adjustments and can be used for both high-speed time

critical applications and complex communication tasks. Due to ongoing technical developments, Profibus is widely acknowledged as the leading industrial

communication system of the future.

More than 2,000 products from approximately 250 Profibus vendors are available today. More than 6.5 million devices representing a huge variety of

products are installed and successfully used in more than 500,000 applications in manufacturing and process automation.

Danfoss Drives solution offers a cost optimal Profibus solution

• MCT-10 software tool for access via standard PC

• Simple two-wire connection

• A universal, globally accepted product

• Compliance with the international standard EN 50170

• Communication speed 12 Mbaud

• Access to drive master file makes planning easy

• Fulfilment of PROFIDRIVE guideline

•Integrated solution

• All frequency converters with Profibus are certified by the Profibus organisation

• Danfoss frequency converters support Profibus DP V1

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

Profibus DP V1 for two different purposes

Fieldbus systems are used for two very different purposes with two very different sets of essentials in modern automation applications. One is transfer

of signals referring to the process itself, the other service, commissioning and set-up communication.

Transfer of control and status signals between sensors and actuators is time critical and must be processed reliably and in real time. This is accomplished

by cyclic communication where each node in the network is polled within each cycle, and each cycle has a pre-defined time. It is necessary to pre-define

and minimise the extent of data in each telegram to make this work reliably and as fast as possible.

This consideration contradicts the second use of the fieldbus, namely as a timesaving set-up and diagnostics bus. Set-up and diagnostics are not time-

critical, not continuously used, and require a larger amount of data in each telegram. Furthermore, you would tend to control this information from a PC

or an interface device (HMI) - and not from the master (typically a PLC) that controls the cyclic communication. Standard Profibus does not support

networks with several masters so set-up and diagnostics information must be contained in the standard telegram handled by the master, making for very

long and time consuming telegrams with room for information only sporadically used.

Profibus DP V1 now combines the two sets of requirements from above in a single fieldbus system, allowing a second master to use the entire network

in a specified time slot in each cycle. Profibus DP V1 thus operates with two classes of masters. Masterclass 1 (typically a PLC) performs the cyclic

communication. Masterclass 2, typically an interface device (HMI or PC), transfers non-time critical information through non-cyclic communication.

Masterclass 2 masters can be connected anywhere on the Profibus net and the communication channel can be opened and closed anytime without

disturbing the cyclic communication. You can have non-cyclic communication even without cyclic communication to for instance transfer complete pro-

grams or set-ups.

Profibus DP V1 is fully compatible with prior versions of Profibus DP V0. Profibus DP V0 and Profibus DP V1 nodes can be combined in the same network,

although the master must support Masterclass 2 communication.

User benefits:

• Connection to the motor controls is possible from every part of the network

• Existing network can be used for commissioning, set-up and diagnostic without disturbing of the cyclic communication

• Both DP V1 and DP V0-nodes can be connected in the same network

• No need for extensive telegrams in the PLC or IPC. A second master who supports DP V1 can handle set-up tasks

NB!

DP V1 is only possible for Master communication-cards which support Masterclass 2 specification.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.5.3 DeviceNet

DeviceNet is a communications link that connects industrial devices to a network. It is based on the broadcast-oriented, communications protocol CAN

(Controller Area Network).

The CAN protocol was originally developed for the European automotive market to be used in exchange for expensive wire harnesses in automobiles. As

a result, the CAN protocol offers fast response and high reliability for demanding applications like ABS brakes and air bags.

Danfoss concept offers the cost optimal DeviceNet solution

• Cyclic I/O communication

• Acyclic communication – “explicit messaging”

• Unconnected Messages Manager (UCMM) messages are supported

•Integrated solution

• Electronic Data sheet (EDS)-files secures easy configuring

• Provides fieldbus voltage supply

• Fulfilment of DeviceNet AC/DC motor profile

• Protocol defined in accordance with the Open DeviceNet Vendor Association (ODVA)

1.5.4 AS-interface

AS-interface (AS-i) is a cost-efficient alternative to conventional cabling at the lowest level of the automation hierarchy. The network can link into a higher-

level fieldbus like Profibus for low-cost remote I/O. Known by its yellow cable; AS-I has grown an “open” technology supported by more than 100 vendors

worldwide. Enhancements through time have broadened its field of applications and AS-interface is today proven in hundreds of thousands of products

and applications spanning the automation spectrum.

1.5.5 Modbus

The frequency converter communicates in Modbus RTU format over an EIA-485 (formerly RS-485) network. Modbus RTU allows access to the frequency

converter's Control Word and Bus Reference.

The Control Word allows the Modbus master to control several important functions of the frequency converter:

•Start

• Stop the frequency converter in several ways:

Coast stop

Quick stop

DC Brake stop

Normal (ramp) stop

• Reset after a fault trip

• Run at a variety of preset speeds

• Run in reverse

• Change the active setup

• Control the frequency converter's two built-in relays

The Bus Reference is commonly used for speed control.

It is also possible to access the parameters, read their values, and, where possible, write values to them. This permits a range of control possibilities,

including controlling the frequency converter's setpoint when its internal PID controller is used.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1.5.6 FC Protocol

An RS-485 interface is standard on all Danfoss frequency converters allowing for up to 126 units in one network. The FC protocol has a very simple design

described in

to the faster fieldbus solution.

The FC protocol can also be used as a service bus for transfer of status information and parameter setup. In this case it is combined with normal time

critical I/0 control via digital inputs.

Serial Communication

. For applications where data transmission speed is of less importance, the RS 485 interface provides a good alternative

1.6 Good Installation Practice

1.6.1 Flexible Installation Options

A major benefit of Danfoss’ decentralised concept is saving installation cost partly due to the clever two-part design of the FCD 300.

All electrical installation is done inside the installation box prior to mounting the electronic part. Subsequently the electronic part is plugged into the

installation box, fixed, and the drive is ready for operation.

Power line looping

The FCD 300 serie facilitates internal power line looping. Terminals for 4 mm

FCD 300 can be mixed along the line. Average load must not exceed 25 A.

24 V control back up

External 24 V (20-30 V) DC can be connected in the EX and EB versions for back-up of control circuits. This way communication and programming

possibility are maintained even during power down. The terminals are dimensioned for up to 2.5 mm

power cables inside the enclosure allows connection of up to 10+ units.

and are doubled for looping.

The T63 and T73 installation boxes have additional looping terminals for 2 X 24 V with 4 mm

control back up supply.

. Connected sensors can be supplied separately from the

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

Illustration 1.19: Example of power and bus looping

MG.90.S1.02 - VLT® is a registered Danfoss trademark





VLT® Decentral FCD 300 Design Guide 1 The Decentral Concept

1.6.2 Guidelines for Selection of Cables and Fuses in a Power Line Installation with FCD 300

It is assumed that the installation follows the Low Voltage Directive as stated in HD 384 and IEC 60364. This section can’t be used in explosive areas and

where fire hazard exists. In general cable dimension has to follow IEC 60364-5-523. If the installation is part of a machinery EN 60204-1 has to be

followed. Cables as mentioned under point 1, 2 and 3 in the figure has to be protected by an enclosure or conduit.

The following section numbers refer to the figure.

1. The cable shall only be able to carry the maximum continuous current of the friction brake. By ground fault non-renewable protective circuit in

the FCD will interrupt the flow of current.

2. If the IP 65 brake resistors recommended by Danfoss are used the cable will only be exposed to the continuous current of the brake resistor.

If the brake resistor becomes overheated it will disconnect itself. If another type or make of brake resistor, without any power limitation device,

is used, the maximum power must be equal to the rated power of the motor.

The current in Amps would be: I = 0.77/motor power, with motor power inserted in kW; [A=V/W]. The rated motor current comes fairly close

to the current in the cable to the brake resistor.

3. The cables to encoders and thermistors are on PELV potential. The currents are in mA range and limited by the FCD. In order not to violate the

PELV protection of the control terminals of FCD the thermistor has to have reinforced insulation according to the PELV demands. For EMI purposes

the cables must have their own electrical shielding and if possible be kept separated from power cables.

4. The cable is protected by the current limit function in the FCD. By ground faults and short circuit of low impedance the FCD will interrupt the

current.

5. The current is limited by the downstream FCD. The CB makes the ground and short circuit protection. The impedance in the leads has to be so

low that the CB disconnects in 5 s by low impedance ground faults. (TN supply).

6. If installation is on a machine (EN 60204-1) and the distance between the T connection and the FCD is less than 3 m, the cable can be downsized

to the current capacity that is needed for the down stream FCD.

7. The trip current for the CB upstream must not be higher than the highest maximal prefuses for the smallest FCD downstream.

For EMC purposes cable # 2, 3 & 4 has to be shielded or placed in metal conduits.

%&%



"



'











 !









##$!$ #







' ' ' ' '





'











   











'



'



  









 



'













'

 













 '









'





Illustration 1.20: Example of decentral cable dimensioning

MG.90.S1.02 - VLT® is a registered Danfoss trademark

1 The Decentral Concept VLT® Decentral FCD 300 Design Guide

1.7 Servicing the Danfoss Decentral Products

1.7.1 Service

Breakdown of Danfoss drives or geared motors only occur under exceptional circumstances. As downtime represents lack of production, failures must be

located and defective components replaced quickly.

Danfoss' decentralised products place great emphasis on addressing these issues. This chapter also describes measures taken to make Danfoss decen-

tralised products superior in a service situation. For detailed information on specific service issues please consult relevant literature.

Centralised frequency converters from Danfoss have pluggable connections to facilitate service using fast and faultless replacement. The same concept

is used and improved for the decentralised drives.

Plug-and-drive

All the advanced and reliable electronics needed to ensure your motors

act smoothly, responsively and economically at each command are hid-

den inside the box lid and plug into connectors when mounted onto the

bottom section. The bottom section contains maintenance-free Cage

Clamp connectors and looping facilities for power and fieldbus cables well

protected against dust, hosing and cleaning agents. Once installed, com-

missioning and upgrading can be performed in no time simply by plugging

in another control lid. See the illustration.

Since the installation box only contains plugs, connectors and low density

pcb’s, it is not likely to fail. In case of a failure in the electronic part, just

remove the six screws, unplug the electronic part and plug in a new one.

You only need standard installation material like cable glands, cables, etc., to commission and service a Danfoss decentralised drive. Special equipment

like hybrid cables not likely to be held in stock by a standard supplier of electric installation components is needed. This provides high flexibility and

maximum uptime.

Illustration 1.21: Product concept

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 2 Introduction to FCD 300

2 Introduction to FCD 300

2.1 Software Version

FCD 300 Series

Software version: 1.5.x

This design guide can be used with all FCD 300 Series frequency converters with software version 1.5.x. The software version number can be seen from parameter 640 version no..

NB!

This symbol indicates something that should be noted by the reader.

Indicates a general warning.

This symbol indicates a warning of high voltage.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

2 Introduction to FCD 300 VLT® Decentral FCD 300 Design Guide

2.2 Safety

2.2.1 High Voltage Warning

The voltage of the frequency converter is dangerous whenever the converter is connected to mains. Incorrect fitting of the motor or

frequency converter may cause damage to the equipment, serious injury or death. Consequently, it is essential to comply with the

instructions in this manual as well as local and national rules and safety regulations.

The Protective Extra Low Voltage (PELV) requirements stated in IEC 61800-5-1 are not fulfilled at altitudes above 2000 m (6562 ft.).

For 200V frequency converters the requirements are not fulfilled at altitudes above 5000 m (16 404 ft.). Please contact Danfoss Drives

for further information.

2.2.2 These Rules Concern your Safety

1. The frequency converter must be disconnected from the mains if repair work is to be carried out. Check that the mains supply has been

disconnected and that the prescribed time has passed before removing the inverter part from the installation.

2. The [STOP/RESET] key on the optional control panel does not disconnect the equipment from mains and is thus not to be used as a safety

switch.

3. The unit must be properly connected to the earth, the user must be protected against the supply voltage and the motor must be protected

against overloading pursuant to prevailing national and local regulations.

4. The earth leakage currents are higher than 3.5 mA.

5. Protection against motor overload is not included in the factory setting. If this function is required, set parameter 128

tion

to data value

motor, class 20, in accordance with NEC.

ETR trip

or data value

ETR warning

. For the North American market: The ETR functions provide overload protection of the

Motor thermal protec-

2.2.3 Warning against Unintended Start

1. The motor can be brought to a stop by means of digital commands, bus commands, references or a local stop, while the frequency converter

is connected to mains. If personal safety considerations make it necessary to ensure that no unintended start occurs, these stop functions are

not sufficient.

2. While parameters are being changed, the motor may start. Consequently, the stop key [STOP/RESET] on the optional control panel must always

be activated, following which data can be modified.

3. A motor that has been stopped may start if faults occur in the electronics of the frequency converter, or if a temporary overload or a fault in

the supply mains or the motor connection ceases.

It can be extremely dangerous to touch the electrical parts even when the AC line supply has been disconnected.

For FCD 300: Wait at least 4 minutes.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 2 Introduction to FCD 300

2.3 Technology

2.3.1 Control Principle

A frequency converter rectifies AC voltage from the mains supply into DC

voltage, following which it changes this voltage to an AC voltage with

variable amplitude and frequency.

The motor thus receives a variable voltage and frequency, which enables

infinitely variable speed control of three-phase, standard AC motors.

1. Mains voltage

3 x 380 - 480 V AC, 50 / 60 Hz.

Rectifier

Three-phase rectifier bridge which rectifies AC voltage into DC voltage.

Intermediate circuit

DC voltage ≅ √2 x mains voltage [V].

Intermediate circuit coils

Evens out the intermediate circuit current and limits the load on mains and components (mains transformer, cables, fuses and contactors).

Intermediate circuit capacitor

Evens out the intermediate circuit voltage.

Inverter

Converts DC voltage into a variable AC voltage with a variable frequency.

Motor voltage

Variable AC voltage depending on supply voltage.

Variable frequency: 0.2 - 132 / 1 - 1000 Hz.

Control card

Here is the computer that controls the inverter which generates the pulse pattern by which the DC voltage is converted into variable AC voltage

with a variable frequency.

2.3.2 The Decentral Concept

The FCD 300 Adjustable speed drive is designed for decentral mounting, e.g. in the food and beverage industry, in the automotive industry, or for other

material handling applications.

With the FCD 300 it is possible to utilize the cost saving potential by placing the power electronics decentrally, and thus make the central panels obsolete

saving cost, space and effort for installation and wiring.

The unit is flexible in its mounting options for as well stand alone mounting and motor mounting. It is also possible to have the unit pre-mounted on a

Danfoss Bauer geared motor (3 in one solution). The basic design with a plugable electronic part and a flexible and “spacious” wiring box is extremely

servicefriendly and easy to change electronics without the need for unwiring.

The FCD 300 is a part of the VLT frequency converter family, which means similar funcionality, programming, and operating as the other family members.

2.3.3 FCD 300 Control Principle

A frequency converter is an electronic unit which is able to infinitely variably control the rpm of an AC motor. The frequency converter governs the motor

speed by converting the regular voltage and frequency from mains, e.g. 400 V / 50 Hz, into variable magnitudes. Today the frequency converter controlled

AC motor is a natural part of all types of automated plants.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

2 Introduction to FCD 300 VLT® Decentral FCD 300 Design Guide

The FCD 300 Series has an inverter control system called VVC (Voltage Vector Control). VVC controls an induction motor by energizing with a variable

frequency and a voltage suitable for it. If the motor load changes, so does its energizing and speed. That is why the motor current is measured on an

ongoing basis, and a motor model is used to calculate the actual voltage requirement and slip of the motor.

2.3.4 Programmable Inputs and Outputs in Four Setups

In the FCD 300 Series it is possible to program the different control inputs and signal outputs and to select four different user-defined Setups for most

parameters. It is easy for the user to program the required functions on the control panel or via serial communication.

2.3.5 Mains Protection

The FCD 300 Series is protected against the transients that may occur on the mains, such as coupling with a phase compensation system or transients

from fuses blown or when lightening strikes.

Rated motor voltage and full torque can be maintained down to approx. 10% undervoltage in the mains supply.

As all units in the FCD 300 Series have intermediate circuit coils, there is only a low amount of harmonic mains supply interference. This gives a good

power factor (lower peak current), which reduces the load on the mains installation.

2.3.6 Frequency Converter Protection

The current measurement in the intermediate circuit constitutes perfect protection of the FCD 300 Series in case there is a short-circuit or an earth fault

on the motor connection.

Constant monitoring of the intermediate circuit current allows switching on the motor output, e.g. by means of a contactor.

Efficient monitoring of the mains supply means that the unit will stop in the case of a phase drop-out (if the load exceeds approx. 50%). In this way, the

inverter and the capacitors in the intermediate circuit are not overloaded, which would dramatically reduce the service life of the frequency converter.

The FCD 300 Series offers temperature protection as standard. If there is a thermal overload, this function cuts out the inverter.

2.3.7 Reliable Galvanic Isolation

In the FCD 300 all digital inputs/outputs, analogue inputs/outputs and the terminals for serial communication are supplied from or in connection with

circuits that comply with PELV requirements. PELV is also complied with in relation to relay terminals at max. 250 V, so that they can be connected to

the mains potential.

See section

Galvanic Isolation (PELV)

for further details.

2.3.8 Advanced Motor Protection

The FCD 300 Series has integral electronic motor protection.

The frequency converter calculates the motor temperature on the basis of current, frequency and time.

As opposed to traditional, bimetallic protection, electronic protection takes account of reduced cooling at low frequencies because of reduced fan speed

(motors with internal fan). This function cannot protect the individual motors when motors are connected in parallel. Thermal motor protection can be

compared to a protective motor switch, CTI.

To give the motor maximum protection against overheating when it is covered or blocked, or if the fan should fail, you can install a thermistor and connect

it to the frequency converter's thermistor input (Digital input), see parameter 128

Thermal motor protection.

NB!

This function cannot protect the individual motors in the case of motors linked in parallel.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 2 Introduction to FCD 300

2.4 CE Labelling

What is CE labelling?

The purpose of CE labelling is to avoid technical obstacles to trade within EFTA and the EU. The EU has introduced the CE label as a simple way of showing

whether a product complies with the relevant EU directives. The CE label says nothing about the specifications or quality of the product. Frequency

converters are regulated by three EU directives:

The machinery directive (98/37/EEC)

All machines with critical moving parts are covered by the machinery directive, which came into force on 1 January 1995. Since a frequency converter is

largely electrical, it does not fall under the machinery directive. However, if a frequency converter is supplied for use in a machine, we provide information

on safety aspects relating to the frequency converter. We do this by means of a manufacturer's declaration.

The low-voltage directive (73/23/EEC)

Frequency converters must be CE labelled in accordance with the low-voltage directive, which came into force on 1 January 1997. The directive applies

to all electrical equipment and appliances used in the 50 - 1000 Volt AC and the 75 - 1500 Volt DC voltage ranges. Danfoss CE labels in accordance with

the directive and issues a declaration of conformity upon request.

The EMC directive (89/336/EEC)

EMC is short for electromagnetic compatibility. The presence of electromagnetic compatibility means that the mutual interference between different

components/appliances is so small that the functioning of the appliances is not affected.

The EMC directive came into force on 1 January 1996. Danfoss CE labels in accordance with the directive and issues a declaration of conformity upon

request. In order that EMC-correct installation can be carried out, this manual gives detailed instructions for installation. In addition, we specify the

standards which our different products comply with. We offer the filters that can be seen from the specifications and provide other types of assistance

to ensure the optimum EMC result.

In the great majority of cases, the frequency converter is used by professionals of the trade as a complex component forming part of a larger appliance,

system or installation. It must be noted that the responsibility for the final EMC properties of the appliance, system or installation rests with the installer.

2.4.1 ATEX

What is ATEX?

Directive 94/9/EC is valid in the European Union (EU) with the purpose of creating unified standards for equipment and protective systems intended for

use in potentially explosive atmospheres. The directive was valid from July 2003, and all equipment installed and built into potentially explosive areas in

EU after this date, must comply with this directive. The directive and its derivatives are often referred to as the ATEX-directive. ATEX is an acronym for

ATmosphere Explosible.

It has been found practical to classify hazardous areas into zones according to the likelihood of an explosive gas/dust atmosphere being present (see IEC

79-10). Such classification allows appropriate types of protection to be specified for each zone.

Motors supplied at variable frequency and voltage

When electrical motors are to be installed in areas where dangerous concentrations and quantities of flammable gases, vapours, mists, ignitable fibres

or dusts may be present in the atmosphere, protective measures are applied to reduce the likelihood of explosion due to ignition by arcs, sparks or hot

surfaces, produced either in normal operation or under specified fault conditions.

Motors supplied at varying frequency and voltage require either:

• Means (or equipment) for direct temperature control by embedded temperature sensors specified in the motor documentation or other effective

measures for limiting the surface temperature of the motor housing. The action of the protective device shall be to cause the motor to be

disconnected. The motor and frequency converter combination does not need to be tested together, or

• The motor must have been type-tested for this duty as a unit in association with the frequency converter specified in the descriptive documents

according to IEC 79-0 and with the protective device provided.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

2 Introduction to FCD 300 VLT® Decentral FCD 300 Design Guide

FCD 300 and ATEX

The following variants of the FCD 300 can be installed directly in Group II, Category 3, and Zone 22 areas:

VLT Decentral FCD3xx-P-T4-P66-xx-R1-Dx-Fxx-T11-Cx

VLT Decentral FCD3xx-P-T4-P66-xx-R1-Dx-Fxx-T12-Cx

VLT Decentral FCD3xx-P-T4-P66-xx-R1-Dx-Fxx-T51-Cx

VLT Decentral FCD3xx-P-T4-P66-xx-R1-Dx-Fxx-T52-Cx

Group II, Category 3, and Zone 22 areas are characterised by:

•Surface installations

• Explosive atmosphere is unlikely to occur or, if it does, is likely to only be of short duration and not in normal duty

• The explosive media is dust

The maximum surface temperature of the FCD 300 during worst-case normal duty is limited to 135°C. This temperature must be lower than the ignition

temperature of the present dust.

The installer must define the zone, category and dust ignition temperature of the environment where the FCD 300 is installed.

ATEX correct installation

The following issues must be taken into account when installing the FCD 300 in ATEX zone 22 environments:

• Motor must be designed, tested and certified by the motor manufacturer for variable speed application

• Motor must be designed for Zone 22 operation. I.e. with type of protection “tD“ acc. to EN61241-0 and -1 or EN50281-1-1.

• Motor must be provided with thermistor protection. The thermistor protection must either be connected to an external thermistor relay, with EC

Type Examination Certificate or compatible with the FCD 300 thermistor input.

If the FCD 300 thermistor protection is used, the thermistor must be wired to terminals 31a and 31b, and thermistor trip activated by programming

parameter 128 to thermistor trip [2]. See parameter 128 for further details.

• Cable entries must be chosen for the enclosure protection to be maintained. It must also be ensured that the cable entries comply with the

requirements for clamping force and mechanical strengths as described in EN 50014:2000.

• The FCD must be installed with appropriate earth connecting according to local/national regulations.

• The installation, inspection and maintenance of electrical apparatus for use in combustible dusts, must only be carried out by personnel that is

trained and familiar with the concept of protection.

For a declaration of conformity, please consult your local Danfoss representative.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 3 Installation

3Installation

3.1 Mechanical Dimensions

3.1.1 Mechanical Dimensions, Motor Mounting

3.1.2 Mechanical Dimensions, Stand Alone Mounting

Mechanical dimensions in mm FCD 303-315 FCD 322-335 A 192 258 A1 133 170 B 244 300 B1 300 367 B2 284 346 C 142 151 C1 145 154 Cable Gland sizes M16, M20, M25 x 1.5 mm Space for cable inlets and service switch handle 100-150 mm

MG.90.S1.02 - VLT® is a registered Danfoss trademark

3 Installation VLT® Decentral FCD 300 Design Guide

3.1.3 Spacing for Mechanical Installation

All units require a minimum of 100 mm air from other components above

and below the enclosure.

3.2 Mechanical Installation

Please pay attention to the requirements that apply to integration and remote mounting. These must be complied with to avoid serious

injury or damage, especially when installing large units.

The FCD 300 consists of two parts: The installation part and the electronics part.

The two parts must be separated, and the installation part is to be mounted first. After wiring, the electronics is to be fixed to the installation part by the

attached 6 screws. For compressing the gasket the screws must be tightened with 2-2.4 Nm, tighten both centre screws first, thereafter the 4 corner

srews “cross over”.

NB!

Do not switch on the mains before the 6 screws are tightened.

The FCD 300 can be applied as following:

- Stand alone mounted close to the motor

- Motor mounted

or might be delivered pre mounted on a Danfoss Bauer (geared) motor. Please contact the Danfoss Bauer sales organisation for further information.

The frequency converter is cooled by means of air circulation. For the unit to be able to release its cooling air, the minimum free distance above and

below the unit must be

the max. temperature stated for the frequency converter and that the 24-hour average temperature is not exceeded. The max. temperature and 24-hour

average can be seen in

Derating for Ambient Temperature

considered.

minimum 100 mm

General Technical Data

. To protect the unit from overheating, it must be ensured that the ambient temperature does not rise above

. If the ambient temperature is higher, derating of the frequency converter is to be carried out. See

. Please note that the service life of the frequency converter will be reduced if derating for ambient temperature is not

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 3 Installation

Stand alone mounting (Wall Mounting)

For best cooling the unit should be mounted vertically, however where space limitations require it, horizontal mounting is allowable. The integrated 3

wall mounting brackets in the wall mounting version can be used for fixing the installation box to the mounting surface, keeping a distance for possible

cleaning between the box and the mounting surface. Use the three supplied washers to protect the paint.

Bolts must be M6 for the FCD 303 - 315 and M8 for FCD 322 - 335.

See Dimensional Drawings.

Motor mounting

The installation box should be mounted on the surface of the motor

frame, typically instead of the motor terminal box. The motor/geared

motor may be mounted with the shaft vertically or horizontally. The unit

mustnot be mounted upside down (the heat sink pointing down). The

cooling of the electronics is independent on the motor cooling fan. For

mounting directly on Danfoss Bauer geared motors no adaption plate is

necessary. For motor mounting (non Danfoss Bauer motors), an adaptor

plate should usually be applied. For that purpose a neutral plate incl gas-

ket and screws for attaching to the installation box is available. The

appropriate drillings and gasket for the motor housing are applied locally.

Please make sure, that the mechanical strength of the mounting screws

and the threads are sufficient for the application. The specified resistance

against mechanical vibrations does not cover the mounting onto a non

Danfoss Bauer motor, as the stability of the motor frame and threads are

outside Danfoss Drive's control and responsibility and the same applies

to the enclosure class. Please be aware, that the frequency converter may

not be used to lift the motor/geared motor.

1. Prepare the adaptor plate for mounting on the motor by drilling

the fixing holes and the hole for the cables.

2. Mount the plate on the motor with the normal terminal box gas-

ket.

3. Knock out the 4 screw holes for mounting the adaptor plate

(outer holes).

4. Mount the terminal box onto the motor by the 4 sealing screws

and the gasket supplied.

Use the supplied star washers for securing PE connection ac-

cording to EN 60204. The screws must be tightened with 5 Nm.

Illustration 3.2: Allowed mounting positions

Illustration 3.1: Universal adaptorplate

MG.90.S1.02 - VLT® is a registered Danfoss trademark

3 Installation VLT® Decentral FCD 300 Design Guide

Illustration 3.3: Bottom view of FCD 303-315

Illustration 3.4: Bottom view of FCD 322-330

3.3 General Information about Electrical Installation

3.3.1 High Voltage Warning

The voltage of the frequency converter is dangerous whenever the equipment is connected to mains. Incorrect installation of the motor

or frequency converter may cause damage to the equipment, serious injury or death. Comply with the instructions in this manual, as

well as national and local rules and safety regulations.

Touching the electrical parts may be fatal - even after the equipment has been disconnected from mains: Wait at least 4 minutes for

current dissipate.

NB!

It is the responsibility of the user or installer to ensure correct earthing and protection in accordance with national and local standards.

3.3.2 Cables

The control cable and the mains cable should be installed separately from motor cables to prevent noise transfer. As a rule a d ist ance of 20 cm i s su ffic ient ,

but it is recommended that the distance is as great as possible, particularly when cables are installed in parallel over large distances.

For sensitive signal cables such as telephone or data cables the greatest possible distance is recommended. Please note that the required distance depends

on the installation and the sensitivity of the signal cables, and that for this reason exact values cannot be given.

When being placed in cable trays, sensitive cables may not be placed in the same cable tray as the motor cable. If signal cables run across power cables,

this is done at an angle of 90 degrees. Remember that all noise-filled inlet and outlet cables to a cabinet must be screened/armoured.

EMC-compliant electrical installation

See also par. 138, 139, 140

Start

[7]

Coasting stop inverted

Start

[7]

Coasting stop inverted

Mechanical brake control

[2]

[25]

Mechanical brake control Mechanical brake control

See more detailed parameter settings under

[25] = '0' => Brake is closed.

[25] = '1' => The brake is open.

Control of mechanical brake

NB!

Do not use the internal relay for DC brakes or brake voltages > 250 V.

3.6.10 Counter Stop via Terminal 33

The start signal (terminal 18) must be active, i.e. logical '1', until the out-

put frequency is equal to the reference. The start signal (terminal 18 =

logical '0') must then be removed before the counter value in parameter

344 has managed to stop the VLT frequency converter.

Par. 307

Digital input

Precise stop function

Par. 343

Counter value

Par. 344

Pulse input

= 100000

[30]

Counter stop with reset

MG.90.S1.02 - VLT® is a registered Danfoss trademark

[1]

4 Programming VLT® Decentral FCD 300 Design Guide

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

4Programming

4.1 LCP Control Unit

4.1.1 The LCP 2 Control Unit, Option

The FCD 300 can be combined with an LCP control unit (Local Control

Panel - LCP 2) which makes up a complete interface for operation and

programming of the frequency converter. The LCP 2 control unit can be

attached up to three metres from the frequency converter, e.g. on a front

panel, using an accessory kit.

The control panel is divided into five functional groups:

1. Display.

2. Keys used to change the display function.

3. Keys used to change the programme parameters.

4. Indicator lamps.

5. Local control keys.

All data is displayed via a 4-line alphanumeric display, which during nor-

mal operation will be able to continuously display 4 items of operating

data and 3 operating modes. During programming all information needed

for quick, effective parameter setup of the frequency converter will be

displayed. As a supplement to the display, there are three indicator lamps

for voltage (ON), warning (WARNING) and alarm (ALARM). All frequency

converter parameter Setups can be changed immediately from the con-

trol panel, unless this function has been programmed as

parameter 018

Lock for data changes

Locked

[1] via

4.1.2 Control Keys for Parameter Setup

The control keys are divided into functions, in such a way that the keys

between the display and the indicator lamps are used for parameter Set-

up, including selection of the display's view mode during normal opera-

tion.

[DISPLAY/STATUS] is used to select the display's view mode or to

change back to Display mode from either Quick Menu or Menu mode.

[QUICK MENU] provides access to the parameters used in the Quick

Menu. It is possible to switch between Quick Menu and Menu mode.

[MENU] gives access to all parameters. It is possible to switch between

Menu mode and Quick Menu.

[CHANGE DATA] is used to change a parameter that has been selected

either in Menu mode or Quick Menu.

[CANCEL] is used if a change to the selected parameter is not to be

implemented.

[OK] is used to confirm a change to a selected parameter.

[+ / -] are used for selecting parameters and for changing parameter

values.

These keys are also used in Display mode to switch between the readouts

of operating variables.

[< >] are used for selecting parameter group and to move the cursor

when changing a numerical value.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

4.1.3 Indicator Lamps

At the bottom of the control panel are a red alarm lamp, a yellow warning

lamp and a green voltage indicator lamp.

If certain threshold values are exceeded, the alarm and/or warning lamp

are activated, while a status or alarm text is shown on the display.

NB!

The voltage indicator lamp is activated when voltage

is connected to the frequency converter.

4.1.4 Local Control

[STOP/RESET] is used for stopping the motor connected or for resetting

the frequency converter after a drop-out (trip). Can be set to active or

inactive via parameter 014

If stop is activated Display line 2 will flash.

Local stop

NB!

If an external stop function is not selected and the

[STOP/RESET] key is set to inactive, the motor can

only be stopped by disconnecting the voltage to the

motor or the frequency converter.

[JOG] changes the output frequency to a preset frequency while the key

is held down. Can be set to active or inactive via parameter 015

jog

[FWD / REV] changes the direction of rotation of the motor, which is

indicated by means of the arrow on the display. Can be set to active or

inactive via parameter 016

active when parameter 002

trol

[START] is used to start the frequency converter. Is always active, but

cannot override a stop command.

Local reversing

Local/remote operation

. The [FWD/REV] key is only

is set to

Local

Local con-

NB!

If the local control keys are set to inactive, these will

both become active when the frequency converter is

set to

Local control

002

Local/remote operation

[FWD/REV], which is only active in Local control.

and

Remote control

, with the exception of

via parameter

MG.90.S1.02 - VLT® is a registered Danfoss trademark

195NA113

VLT® Decentral FCD 300 Design Guide 4 Programming

4.1.5 Display Mode

Switch mode by using [+/-] key [HAND...AUTO]

VAR 1.1 VAR 1.2 VAR 1.3

VAR 2

SETUP

STATUS

In normal operation, up to 4 different display data items can optionally

be shown continuously: 1,1, 1,2, 1,3 and 2. The present operation status

or alarms and warnings that have been generated are displayed in line 2

in the form of a number.

In the event of alarms this is displayed in lines 3 and 4 with explanatory

text.

A warning will appear flashing in line 2 with explanatory text in line 1.

The active Setup will also appear on the display.

The arrow indicates the selected direction of rotation. Here the frequency

converter shows that it has an active reversing signal. The body of the

arrow will disappear if a stop command is given, or if the output frequency

drops below 0.1 Hz.

The bottom line displays the frequency transformer's status. The scrollbar

shows which operating values can be displayed in lines 1 and 2 in Display

mode. Changes are made using the [+ / -] keys.

Switching between AUTO and HAND modes

By activating the [CHANGE DATA] key in [DISPLAY MODE] the display

will indicate the mode of the frequency converter.

In [HAND] mode the reference can be changed by [+] or [-] keys.

Operating data Resulting reference [%] Resulting reference [unit] Feedback [unit] Output frequency [Hz] Output frequency x scaling [-] Motor current [A] Torque [%] Power [kW] Power [HP] Motor voltage [V] DC link voltage [V] Thermal load motor [%] Thermal load [%] Hours run [hours] Digital input [binary] Pulse input 29 [Hz] Pulse input 29 [Hz] Pulse input 33 [Hz] External reference [%] Status word [hex] Heatsink temperature [°C] Alarm word [hex] Control word [hex] Warning word [hex] Extended status word [hex] Analogue input 53 [V] Analogue input 60 [mA]

Three operating data items can be shown in the first display line, and one

operating variable can be shown in the second display line. Is program-

med via parameters 009, 010, 011 and 012

Unit

Display readout

4.1.6 Display Modes

The LCP control unit has different display modes, which depend on the

mode selected for the frequency converter.

Display mode I:

This display mode is standard after startup or initialisation.

FREQUENCY

50.0 Hz

MOTOR IS RUNNING

Line 2 shows the data value of an operating data item with unit, and line

1 contains a text that explains line 2. In the example,

been selected as readout via parameter 009

Large display readout

Frequency

has

. In

normal operation, another variable can be entered immediately using the

[+ / -] keys.

Display mode II:

Switch between Display modes I and II is performed by briefly pressing

the [DISPLAY / STATUS] key.

24.3% 30.2% 13.8A

50.0 Hz

MOTOR IS RUNNING

In this mode, all data values for four operating data items with any per-

taining units are shown, see table. In the example, the following have

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

been selected:

the first and second line.

Display mode III:

This display mode is called up as long as the [DISPLAY / STATUS] key is

held d own. When the key is release d it switches ba ck to Display mo de II,

unless the key is held down for less than approx. 1 sec., in which case

the system always reverts to Display mode I.

Here you can read out the parameter names and units for operating data

in the first and second lines. Line 2 in the display remains unchanged.

Frequency, Reference, Torque

REF% TORQUE CURR A

50.0 Hz

MOTOR IS RUNNING

SETUP

and

Current

as readout in

4.1.7 Parameter Setup

Display mode IV:

This display mode can be called up during operation if a change has to

be made in another Setup without stopping the frequency converter. This

function is activated in parameter 005

REF% TORQUE CURR A

50.0 Hz

MOTOR IS RUNNING

Here the programming Setup number 2 will flash to the right of the active

Setup.

Programming Setup

SETUP

A frequency converter's comprehensive work area can be accessed via a

large number of parameters, making it possible to adapt its functionality

for a specific application. To provide a better overview of the many pa-

rameters, there is a choice of two programming modes - Menu mode and

Quick Menu mode. The former provides access to all parameters. The

latter takes the user through the parameters, which make it possible to

start operating the frequency converter in most cases, in accordance with

the Setup made. Regardless of the mode of programming, a change of a

parameter will take effect and be visible both in the Menu mode and in

the Quick menu mode.

Structure for Quick menu mode v Menu mode

In addition to having a name, each parameter is linked up with a number

which is the same regardless of the programming mode. In Menu mode,

4.1.8 Quick Menu with LCP 2 Control Unit

Start Quick Setup by pressing the [QUICK MENU] key, which will bring

out the following display values:

QUICK MENU X OF Y

50.0 Hz

001 LANGUAGE

ENGLISH

At the bottom of the display, the parameter number and name are given

together with the status/value of the first parameter under the Quick

SETUP

parameters will be split into groups, with the first digit (left) of the pa-

rameter number indicating the group number of the parameter in ques-

tion.

• Using the [QUICK MENU] key, it is possible to get access to the

most important parameters of the frequency converter. After

programming, the frequency converter is in most cases ready

for operation. Scroll through the Quick menu using the [+ / -]

keys and change the data values by pressing [CHANGE DATA]

+ [OK].

• The Menu mode allows choosing and changing all parameters

as required. However, some parameters will be "shaded off",

depending on the choice in parameter 100

menu. The first time the [QUICK MENU] key is pressed after the unit has

been switched on, the readouts always start in pos. 1 - see table below.

Pos.

Parameter no. Unit 1 001 Language 2 102 Motor power 3 103 Motor voltage [V] 4 104 Motor frequency [Hz] 5 105 Motor current [A] 6 106 Rated motor speed [rpm] 7 107 AMT 8 204 Minimum reference 9 205 Maximum reference [Hz] 10 207 Ramp-up time [sec] 11 208 Ramp-down time [sec] 12 002 Local/remote operation 13 003 Local reference

Configuration

[kW]

[Hz]

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

4.1.9 Parameter Selection

Menu mode is started by pressing the [MENU] key, which produces the

following readout on the display:

FREQUENCY

50.0 Hz

0 KEYB.&DISPLAY

Line 3 on the display shows the parameter group number and name.

In Menu mode, the parameters are divided into groups. Selection of pa-

rameter group is effected using the [< >] keys.

The following parameter groups will be accessible:

Group no.

0 Operation & Display 1 Load & Motor 2 References & Limits 3 Inputs & Outputs 4 Special functions 5 Serial communication 6 Technical functions

When the required parameter group has been selected, each parameter

can be chosen by means of the [+ / -] keys:

Parameter group

the display. The procedure for changing data depends on whether the

selected parameter represents a numerical data value or a text value.

Changing a data value

If the selected parameter is a text value, the text value is changed by

means of the [+ / -] keys.

FREQUENCY

50.0 Hz

001 LANGUAGE

ENGLISH

The bottom display line will show the value that will be entered (saved)

when acknowledgment is given [OK].

Change of numeric data value

If the selected parameter is represented by a numerical data value, a digit

is first chosen using the [< >] keys.

FREQUENCY

50.0 Hz

130 START FREQUENCY

09.0 HZ

SETUP

FREQUENCY

50.0 Hz

001 LANGUAGE

ENGLISH

The 3rd line of the display shows the parameter number and name, while

the status/value of the selected parameter is shown in line 4.

Changing data

Regardless of whether a parameter has been selected under the Quick

menu or the Menu mode, the procedure for changing data will be the

same. Pressing the [CHANGE DATA] key gives access to changing the

selected parameter, following which the underlining in line 4 will flash on

The selected digit can then be changed infinitely variably using the [+ /

-] keys:

FREQUENCY

50.0 Hz

130 START FREQUENCY

10.0 HZ

The chosen digit is indicated by the digit flashing. The bottom display line

shows the data value that will be entered (saved) when signing off with

[OK].

SETUP

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

4.1.10 Manual Initialisation

NB!

Manual initialisation is

175N0131 control unit. It is, however, possible to per-

form an initialisation via par. 620

The following parameters are not changed when initialising via par. 620

Operation mode

- par. 500

- par. 501

Address

Baud rate

not possible on the LCP 2

Operation mode

- par. 600

- par. 601

- par. 602

- par. 603

- par. 604

- par. 605

- par. 615-617

- par. 678

4.2 Parameter Group 0-** Operation & Display

001 Language

Value:

English (english) [0]

German (deutsch) [1]

French (francais) [2]

Danish (dansk) [3]

Spanish (espanol) [4]

Italian (italiano) [5]

Function:

This parameter is used to choose the language to be shown in the display

whenever the LCP control unit is connected.

Description of choice:

There is a choice of the languages shown. The factory setting may vary.

1. the [START] key. This cannot, however, override stop com-

mands via the digital inputs (see parameter 013

2. the [STOP/RESET] and [JOG] keys, on the condition that these

are active.

3. the [FWD/REV] key, on the condition that is has been selected

as active in parameter 016

013

Local control Local control as parameter 100 quency range

4. parameter 003

using the [+] and [-] keys.

5. an external control command that can be connected to the dig-

ital inputs (see parameter 013

Operating hours

Hours run

kWh counter

Number of power-ups

Number of overtemperatures

Number of overvoltages

Fault log

Configure Control Card

Local reversing

is set at

Local reference

Local control and open loop

[3]. Parameter 200

Both directions

where the reference can be set

Local control

, and that parameter

Output fre-

[1] or

002

Value:

Remote operation (REMOTE) [0]

Local operation (LOCAL) [1]

Function:

There is a choice of two different modes of operation of the adjustable

frequency drive;

parameter 013

Description of choice:

Remote operation

controlled via:

1. the control terminals or via serial communication.

2. the [START] key. This cannot, however, override stop com-

3. the [STOP/RESET] and [JOG] keys, on the condition that these

Local operation

trolled via:

Remote operation

Local control

[0] is selected, the adjustable frequency drive is

mands transmitted via the digital inputs or via serial communi-

cation.

are active.

[1], is selected, the adjustable frequency drive is con-

[0] or

Local operation

[1] is selected.

[1]. See also

NB!

The [JOG] and [FWD/REV] keys are located on the LCP

control unit.

003 Local reference

Value:

Par. 013

Local control

0 - f

(par. 205)

MAX

Local control

Par. 013

- Ref

Ref

MIN

MAX

Function:

In this parameter, the local reference can be set manually. The unit of

the local reference depends on the configuration selected in parameter

Configuration

100

Description of choice:

In order to protect the local reference, parameter 002

eration

must be set to

via serial communication.

must be set to [1] or [2]:

must be set to [3] or [4].

(par. 204-205)

Local operation

50 Hz

0,0

Local/remote op-

[1]. Local reference cannot be set

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

4.2.1 Setup Configuration

There is a choice of four Setups (parameter Setups), which can be pro-

grammed independently of one another. The active Setup can be selected

in parameter 004

the active Setup number will be appear in the display under “Setup”. It

is also possible to preset the frequency converter to

it is possible to shift Setups using the digital inputs or serial communica-

tion. Setup shift can be used in a plant in which, for example, one Setup

Active Setup

. When an LCP control unit is connected,

Multisetup

, so that

4.2.2 Setup Shift

- Selection of Setup via terminals 29 and 33.

Par. 305

Digital input

Par. 307

Active setup

Par. 004

004 Active Setup

Value:

Factory Setup (FACTORY SETUP) [0]

Setup 1 (setup 1) [1]

Setup 2 (setup 2) [2]

Setup 3 (setup 3) [3]

Setup 4 (setup 4) [4]

Multi Setup (MULTI SETUP) [5]

Function:

The active parameter Setup is selected here. All parameters can be pro-

grammed in four individual parameter Setups. Shifts between Setups can

be made in this parameter via a digital input or via serial communication.

Description of choice:

Factory Setup

[1]-[4] are four individual Setups which can be selected as required.

Setup

ups via a digital input or via serial communication is required.

005 Programming Setup

Value:

Factory Setup (FACTORY SETUP) [0]

Setup 1 (setup 1) [1]

Setup 2 (setup 2) [2]

Setup 3 (setup 3) [3]

Setup 4 (setup 4) [4]

Active Setup (ACTIVE SETUP) [5]

[0] contains the factory-set parameter values.

[5] is used where remote-controlled shifts between the four Set-

Selection of Setup, lsb

Selection of Setup, msb

Multi Setup

[5]

[31]

[32]

Setup 1-4

Multi

is used for daytime operation and another one at night time.In parameter

006

Setup copying

parameter 007

converter to another by moving the LCP control panel. First all parameter

values are copied to the LCP control panel, which can then be moved to

another frequency converter. Here all parameter values can be copied

from the LCP control unit to the frequency converter.

Function:

You can select which Setup you want to programme during operation

(applies both via the control panel and the serial communication port). It

is, for example, possible to programme

Setup is set to

Description of choice:

Factory Setup

source of data if the other Setups are to be reset to a known status.

1-4

[1]-[4] are individual Setups that can be programmed freely during

operation. If

equal to parameter 004

006 Setup copying

Value:

No copying (NO COPY) [0]

Copy to Setup 1 from #

(COPY TO SETUP 1) [1]

Copy to Setup 2 from #

(COPY TO SETUP 2) [2]

Copy to Setup 3 from #

(COPY TO SETUP 3) [3]

Copy to Setup 4 from #

(COPY TO SETUP 4) [4]

Copy to all Setups from # (copy to all) [5]

Function:

You can copy from the selected active Setup in parameter 005

ming setup

Description of choice:

Copying begins when the required copying function has been selected

and the [OK]/[CHANGE DATA] key has been pushed. The display indi-

cates when copying is in progress.

it is possible to copy from one Setup to another. Using

LCP copy

all Setups can be transferred from one frequency

Setup 2

[2], while the active

Setup 1

[1] in parameter 004

[0] contains the factory-set data and can be used as a

Active Setup

[5] is selected, the programming Setup will be

Active Setup

NB!

If data is modified or copied to the active Setup, the

modifications have an immediate effect on the unit's

operation.

Active Setup

Program-

to the selected Setup or Setups in this parameter.

NB!

Copying is only possible in Stop (motor stopped in con-

nection with a stop command).

Setup

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

007 LCP copy

Value:

No copying (NO COPY) [0]

Upload all parameters (UPL. ALL PAR.) [1]

Download all parameters (DWNL. ALL PAR.) [2]

Download size-independent parameters

(DWNL.OUTPIND.PAR.) [3]

Function:

Parameter 007

panel's integral copy function. The function is used if you want to copy

all parameter setups from one adjustable frequency drive to another by

moving the LCP 2 control panel.

Description of choice:

Select

transferred to the control panel. Select

parameter values transferred are to be copied to the adjustable frequency

drive to which the control panel is attached. Select

pendent par.

parameters. This is used when downloading to a adjustable frequency

drive with a different rated power size than that from which the param-

eter setup originates.

008 Display scaling of output frequency

Value:

0.01 - 100.00

Function:

In this parameter, the factor is selected by which the output frequency is

to be multiplied. The value is shown in the display, provided parameters

009-012

Description of choice:

Set the required scaling factor.

009 Large display readout

Value:

No readout (none) [0]

Resulting reference [%]

(reference [%]) [1]

Resulting reference [unit]

(reference [unit]) [2]

Feedback [unit] (feedback [unit]) [3]

Frequency [Hz] (Frequency [Hz]) [4]

Output frequency x scaling

(frequency x scale) [5]

Motor current [A] (Motor current [A]) [6]

Torque [%] (Torque [%]) [7]

Power [kW] (Power [kW]) [8]

Power [HP] (Power [HP][US]) [9]

Motor voltage [V]

(Motor voltage [V]) [11]

LCP copy

is used if you want to use the LCP 2 control

Upload all parameters

[1] if you want all parameter values to be

Download all parameters

Download size-inde-

[3] if you only want to downloade the size-independent

NB!

Upload/download can only be performed in stop mode.

Download can

quency drive with the same software version number,

see parameter 626

Display readout

only be performed to a adjustable fre-

Database identification no.

have been set to

Output frequency x scaling

[2] if all

1.00

[5].

DC link voltage [V]

(DC link voltage [V]) [12]

Thermal load motor [%]

(Motor thermal [%]) [13]

Thermal load [%]

(FC. thermal[%]) [14]

Running hours [Hours]

(RUNNING HOURS]) [15]

Digital input [Bin]

(Digital input[bin]) [16]

Analog input 53 [V]

(analog input 53 [V]) [17]

Analog input 60 [mA]

(analog input 60 [mA]) [19]

Pulse reference [Hz]

(Pulse INPUT 33. [Hz]) [20]

External reference [%]

(external ref. [%]) [21]

Status word [Hex] (Status word [hex]) [22]

Heatsink temperature [°C]

(Heatsink temp [°C]) [25]

Alarm word [Hex] (Alarm word [hex]) [26]

Control word [Hex] (Control word [Hex]) [27]

Warning word [Hex]

(warning word [Hex]) [28]

Extended status word [Hex]

(Ext. status [hex]) [29]

Communication option card warning

(COMM OPT WARN [HEX]) [30]

Pulse count

(PULSE COUNTER) [31]

Pulse input 29

(PULSE INPUT 29) [32]

Function:

In this parameter you can select the data value that you wish to display

in the LCP control unit display line 2 when the frequency converter is

switched on. The display will also be included in the scrollbar in display

mode. In parameters 010-012

three data values, which are displayed in display line 1.

Description of choice:

No readout readout

can only be selected in parameters 010-012

Resulting reference [%]

in the range from Minimum reference, Ref

Ref

MAX

Reference [unit]

Closed loop

units

Feedback [unit]

selected in parameter 414

feedback, FB

Frequency [Hz]

gives the resulting reference with unit Hz in

the reference unit is selected in parameter 416

gives the resulting signal value using the unit/scaling

and 416

HIGH

gives the output frequency of the frequency converter.

Display readout

you can select a further

Small display

gives, as a percentage, the resulting reference

to Maximum reference,

MIN

Open loop

Process

Minimum feedback, FB

Process units

LOW

, 415

Maximum

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

Output frequency x scaling [-]

multiplied by the factor set in parameter 008

frequency Motor current [A]

effective value.

Torque [%]

rated torque.

Power [kW] Power [HP] Motor voltage[V] DC link voltage [V]

converter.

gives the phase current of the motor measured as an

denotes the motor's present load in relation to the motor's

gives the present power that the motor is absorbing in kW.

gives the present power that the motor is absorbing in HP.

gives the voltage supplied to the motor.

gives the intermediate circuit voltage of the frequency

Thermal load motor [%]

tor. 100 % is the cut-out limit.

Thermal load [%]

frequency converter. 100 % is the cut-out limit.

gives the calculated/estimated thermal load on the

Running hours [Hours]

since the last reset in parameter 619

Digital input [Binary code]

(18, 19, 27, 29 and 33). Terminal 18 corresponds to the bit on the ex-

treme left. `0' = no signal, `1' = signal connected.

Analog input 53 [V]

gives the voltage value of terminal 53.

Analog input 60 [mA] Pulse input 33[Hz]

gives the frequency in Hz connected to terminal 33.

External reference [%]

centage (sum of analogue/pulse/serial communication) in the range from

Minimum reference, Ref

Status word [Hex]

See

Serial communication

Heatsink temp.[°C]

quency converter. The cut-out limit is 90-100 °C, while cutting back in

occurs at 70 ± 5 °C.

Alarm word [Hex] communication Control word [Hex]

See

Serial communication Warning word [Hex] communication

gives one or several status conditions in a Hex code.

gives the present heatsink temperature of the fre-

gives one or several alarms in hex code. See

in the

gives the control word for the frequency converter.

gives one or several warnings in hex code. See

in the

Extended status word [Hex]

code. See

tion.

Serial communication

Communication option card warning [Hex]

is a fault in the communication bus. Only active if communication options

are installed.

If there are no communication options 0 Hex is displayed.

Pulse input 29[Hz] Pulse count

010 Small display line 1.1

Value:

See par. 009

Function:

In this parameter, the first of three data values can be selected that is to

be displayed in the LCP control unit display, line 1, position 1. This is a

useful function, e.g. when setting the PID regulator, as it gives a view of

process reactions to reference changes. The display readout is activated

by pushing the [DISPLAY STATUS] key.

gives the frequency in Hz connected to terminal 29.

gives the number of pulses that the unit has registered.

Large display readout

equals the present output frequency f

Display scaling of output

gives the calculated/estimated load on the mo-

gives the number of hours that the motor has tun

Reset of running hours counter

gives the signal status from the 5 digital inputs

gives the present value of terminal 60.

gives the sum of external references as a per-

to Maximum reference, Ref

MIN

in the

Design Guide

for further information.

MAX

Serial

Design Guide

for further information.

in the

Design Guide

for further information.

Serial

Design Guide

for further information.

gives one or several status modes in Hex

in the

Design Guide

for further informa-

gives a warning word if there

Analog input 53 [V] [17]

Description of choice:

See parameter 009

011 Small display readout 1.2

Value:

See parameter 009

Function:

See the functional description given under parameter 010

readout

Description of choice:

See parameter 009

012 Small display readout 1.3

Value:

See parameter 009

Function:

See the functional description given under parameter 010

readout

Description of choice:

See parameter 009

013 Local control

Value:

Local not active (DISABLE) [0]

Local control and open loop without slip compensation

(LOC CTRL/OPEN LOOP) [1]

Remote-operated control and open loop without slip compensa-

tion

(LOC+DIG CTRL) [2]

Local control as parameter 100

(LOC CTRL/AS P100) [3]

Remote-operated control as parameter 100

(LOC+DIG CTRL/AS P100) [4]

Function:

This is where the required function is selected if, in parameter 002

Large display readout

remote operation, Local operation

Description of choice:

Local not active

parameter 003

In order to enable a shift to

remote operation Local control and open loop

parameter 003

Configuration

[0] is selected, it is not possible to set a reference via

Local reference

Local not active

must be set to

[1] is used if the motor speed is to be set via

Local reference

automatically shifts to

. When this choice is made, parameter 100

Remote-operated control and open loop Local control and open loop

can also be controlled via the digital inputs.

For selections [1-2] control is shifted to open loop, no slip compensation.

Local control as parameter 100

be set via parameter 003

Configuration

automatically shifting to

[1]; however, the adjustable frequency drive

[3] is used when the motor speed is to

Local reference

Remote-operated control as parameter 100 Local control as parameter 100

drive can also be controlled via the digital inputs.

Shifting from

cal/remote operation

Remote operation

, while this parameter has been set to

[3]; however, the adjustable frequency

operated control and open loop

Motor current [A][6]

Feedback [unit] [3]

[1] has been chosen.

[0], parameter 002

Remote operation

[0].

Speed regulation, open loop

[2] functions in the same way as

, but without parameter 100

Speed regulation, open loop

[4] works the same way as

Local operation

[1]: The present motor frequency and

in parameter 002

Small display

Local/

[0].

Lo-

Remote-

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

direction of rotation will be maintained. If the present direction of rotation

does not respond to the reversing signal (negative reference), the refer-

ence will be set to 0.

Shifting from

cal/remote control

Local operation

, while this parameter has been set to

ated control and open loop

Configuration

100

Shifting from

remote operation

will be active. The shift will be smooth.

Remote control

, while this parameter has been set to

control as parameter 100

If the reference signal is negative, the local reference will be set to 0.

Shifting from

Local operation

cal/remote operation

: The local reference will be replaced by the remote-operated

operation

reference signal.

014 Local stop

Value:

Not active (DISABLE) [0]

Active (ENABLE) [1]

Function:

In this parameter, the local [STOP]-key can be engaged or disengaged

on the control panel and on the LCP control panel.

Description of choice:

Not active

inactive.

015 Local jog

Value:

Function:

In this parameter, the jog function on the LCP control panel can be en-

gaged/disengaged.

Description of choice:

Not active

active.

016 Local reversing

Value:

Function:

In this parameter you can select/deselect the reversing function on the

LCP control panel. The key can only be used if parameter 002

mote operation control 100

[0] is selected in this parameter, the [STOP]-key will be

NB!

stopped by means of the [STOP]-key.

Not active (DISABLE) [0]

Active (ENABLE) [1]

[0] is selected in this parameter, the [JOG]-key will be in-

Not active (DISABLE) [0]

Active (ENABLE) [1]

is set to

Local control, open loop

[3].

Remote operation

in parameter 002

Remote-oper-

[1]: The configuration selected in parameter

Local control

in parameter 002

Remote-operated

[4]: the present reference will be maintained.

Remote operation

, while this parameter has been set to

Not active

[0] is selected, the motor cannot be

Local operation

[1] or

in parameter 002

[1] and parameter 013

Local control as parameter

Lo-

Local/

Lo-

Remote

Local/re-

Local-

Description of choice:

Disable

disabled. See also parameter 200

In this parameter, the reset function on the control panel can be engag-

ed/disengaged.

inactive.

In this parameter, it is possible to 'lock' the controls to disable data

changes via the control keys.

made; however, it will still be possible to make data changes via serial

communication. Parameter 009-012

the control panel.

Setting of the required operating mode when the mains voltage is en-

gaged. This function can only be active if

selected in parameter 002

Auto restart, use saved ref.

drive is to start using the local reference (set in parameter 003

reference

prior to the mains voltage being cut out.

Forced stop, use saved ref.

drive is to remain stopped when the mains voltage is engaged, until the

[START]-key is activated. After a start command the motor speed is ram-

ped up to the saved reference in parameter 003

Forced stop, set ref. to 0

is to remain stopped when the mains voltage is cut back in. Parameter

003

[0] is selected in this parameter, the [FWD/REV] key will be

Output frequency range

017 Local reset of trip

Value:

Not active (DISABLE) [0]

Active (ENABLE) [1]

Function:

Description of choice:

Not active

Locked

[0] is selected in this parameter, the reset function will be

NB!

Not active

Select

has been connected via the digital inputs.

018 Lock for data changes

Value:

Not locked (NOT LOCKED) [0]

Locked (LOCKED) [1]

Function:

Description of choice:

[1] is selected, data changes in the parameters cannot be

[0], only if an external reset signal

Display readout

019 Operating mode at power-up, local operation

Value:

Auto restart, use saved reference

(AUTO RESTART) [0]

Forced stop, use saved reference

(LOCAL=STOP) [1]

Forced stop, set ref. to 0

(LOCAL=STOP, REF=0) [2]

Function:

Local operation

Local/remote operation

Description of choice:

[0] is selected if the adjustable frequency

can be changed via

[1] has been

Local

) and the start/stop state given via the control keys immediately

[1] is selected if the adjustable frequency

Local reference

[2] is selected if the adjustable frequency drive

is to be zeroed.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

NB!

In remote operation (parameter 002

) the start/stop state at the time of mains con-

eration

nection will depend on the external control signals. If

Pulse start put

nection.

020 Lock for Hand mode

Value:

Not active (DISABLE) [0]

Active (ENABLE) [1]

Function:

In this parameter you can select whether it should be possible or not to

switch between Auto- and Hand mode. In Auto mode the frequency con-

verter is controlled by external signals whereas the frequency converter

in Hand mode is controlled via a local reference directly from the control

unit.

Description of choice:

Not active

will be inactive. This blocking can be activated as desired. If

selected you can switch between Auto- and Hand mode.

In this parameter you can select the standard setup of the Quick menu

key on the control panel and the LCP 2 control panel.

Using this function, in parameter 025

select up to 20 parameters for the Quick Menu key.

not active

active.

Active

[0] is selected in this parameter, the Hand mode function

NB!

This parameter is only valid for LCP 2.

024 Userdefined Quick Menu

Value:

Not active (Disable) [0]

Active (Enable) [1]

Function:

Description of choice:

[0] is selected, the standard setup of the Quick Menu key is

[1] is selected, the user-defined Quick Menu is active.

[8] is selected in parameter 302

, the motor will remain stopped after mains con-

Quick Menu setup

Local/remote op-

Digital in-

Active

[1] is

the user can

1. Select parameter 025

DATA].

2. Index 1 indicates the first parameter in Quick Menu. You can

scroll between the index numbers using the [+ / -] keys. Select

Index 1.

3. Using [< >] you can scroll between the three figures. Press the

[<] key once ad the last number in the parameter number can

be selected using the [+ / -] keys. Set Index 1 to 100 for pa-

rameter 100

4. Press [OK] when Index 1 has been set to 100.

5. Repeat steps 2 - 4 until all parameters required have been set

to the Quick Menu key.

6. Press [OK] to complete the Quick Menu setup.

If parameter 100

start with this parameter every time Quick Menu is activated.

Please note that parameter 024

025

Quick Menu setup

026 LED Status

Value:

Overload (Overload) [0]

Therm. warn/alarm 36 (Overtemp) [1]

Thermistor/ETR (Thermal Motor) [2]

Digital input 18 (Digital Input 18) [3]

Digital input 19 (Digital Input 19) [4]

Digital input 27 (Digital Input 27) [5]

Digital input 29 (Digital Input 29) [6]

Digital input 33 (Digital Input 33) [7]

As relay par. 323 (As relay / P323) [8]

As dig.outp. par. 341 (Ad Dig. Out. / P341) [9]

As mech.brake output

(As mech. brake output) [10]

Function:

This parameter enables the user to visualize different situations using the

Status LED.

Description of choice:

Select the function to be visualized.

Configuration

are reset to the factory setting during initialisation.

Quick Menu setup

is selected at Index 1, Quick Menu will

User-defined Quick Menu

and press [CHANGE

and parameter

025 Quick Menu setup

Value:

[Index 1 - 20] Value: 0 - 999

Function:

In this parameter you define which parameters are required in the Quick

Menu when parameter 024

Up to 20 parameters can be selected for the user-defined Quick Menu.

NB!

Please note that this parameter can only be set using

an LCP 2 control panel. See

Description of choice:

The Quick Menu is set up as follows:

User-defined Quick Menu

Order form

is set to

MG.90.S1.02 - VLT® is a registered Danfoss trademark

Active

000

[1].

4 Programming VLT® Decentral FCD 300 Design Guide

4.3 Parameter Group 1-** Load and Motor

4.3.1 Configuration

Selection of configuration and torque characteristics has an effect on

which parameters can be seen in the display. If

all parameters relating to PID regulation will be filtered out. This means

that the user only sees the parameters that are relevant for a given ap-

plication.

100 Configuration

Value:

Speed control, open loop

(SPEED OPEN LOOP) [0]

Speed control, closed loop

(SPEED CLOSED LOOP) [1]

Process control, closed loop

(PROCESS CLOSED LOOP) [3]

Function:

This parameter is used to select the configuration to which the frequency

converter is to be adapted. This makes adaptation to a given application

simple, since the parameters not used in a given configuration are hidden

(not active).

Description of choice:

Speed control, open loop

tained (without feedback signal) with automatic load and slip compen-

sation to ensure a constant speed at varying loads. Compensations are

active, but may be disabled in parameter 134

parameter 136

Speed control, closed loop

obtained. A feedback signal must be added, and the PID regulator must

be set in parameter group 400

Process control, closed loop

lator is activated to enable precise control of a process in relation to a

given process signal. The process signal can be set to the relevant process

unit or as a percentage. A feedback signal must be added from the proc-

ess and the process regulator must be set in parameter group 400

functions

and Instance 20/70 or 21/71 is chosen in parameter 904

types

101 Torque characteristic

Value:

Constant torque

(Constant torque) [1]

Variable torque low

(torque: low) [2]

Variable torque medium

(torque: med) [3]

Variable torque high

(torque: high) [4]

Variable torque low with CT start

(VT LOW CT START) [5]

Slip compensation

. Process closed loop is not active if a DeviceNet card is mounted

[0] is selected, normal speed control is ob-

as required.

[1] is selected, better speed accuracy is

Special functions

[3] is selected, the internal process regu-

Open loop

[0] is selected,

Load compensation

and

Special

Instance

Variable torque medium with CT start

(VT MED CT START) [6]

Variable torque high with CT start

(VT HIGH CT START) [7]

Special motor mode

(Special motor mode) [8]

CT = Constant torque

Function:

This parameter enables a choice of principle for adaptation of the U/f ratio

of the frequency converter to the torque characteristic of the load. See

par. 135

U/f ratio.

Description of choice:

Constant torque

obtained, in which output voltage and output frequency are increased at

increasing loads in order to maintain constant magnetization of the mo-

tor.

Select

Variable torque low torque high Variable torque - low with CT start high with CT start

que than can be achieved with the three first characteristics.

Select

Special motor mode

be adapted to the present motor. The break points are set in parameters

423-428

[1] is selected, a load-dependent U/f characteristic is

[2],

Variable torque medium

[4], if the load is square (centrifugal pumps, fans).

[5],

- medium with CT start

[7], are selected if you need a greater breakaway tor-

NB!

Load and slip compensation are not active if variable

torque or special motor mode have been selected.

[8], if a special U/f setting is needed that is to

Voltage/frequency

[3] or

Variable

[6] or

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

NB!

Please note that if a value set in the nameplate pa-

rameters 102-106 is changed, there will be an auto-

102

matic change of parameter 108

109

Stator reactance

Motor power P

M,N

Stator resistance

and

Value:

0.18 - 4 kW

Depends on unit

Function:

Here you must set a power value [kW] P

rated power. The factory sets a rated power value [kW] P

, corresponding to the motor's

M,N

, that de-

M,N

pends on the type of unit.

Description of choice:

Set a value that matches the nameplate data on the motor. Settings be-

tween two sizes below and one size over the factory setting are possible.

103

Motor voltage U

M,N

Value:

50 - 999 V

400 V

Function:

This is where to set the rated motor voltage U

for either star Y or delta

M,N

.

Description of choice:

Select a value that corresponds to the nameplate data on the motor, re-

gardless of the frequency converter's mains voltage.

104

Motor frequency f

M,N

Value:

24-1000 Hz

50 Hz

Function:

This is where to select the rated motor frequency f

M,N

Description of choice:

Select a value that corresponds to the nameplate data on the motor.

105

Motor current I

M,N

Value:

0,01 - I

MAX

Depends on choice of motor

Function:

The nominal, rated current of the motor I

forms part of the frequency

M,N

converter calculation of features such as torque and motor thermal pro-

tection.

Description of choice:

Set a value that corresponds to the nameplate data on the motor. Set the

motor current I

taking into account whether the motor is star-connec-

M,N

ted Y or delta-connected .

106 Rated motor speed

Value:

100 - f

x 60

M,N

(max. 60000 rpm)

Depends on parameter 104

Motor frequency,

M,N

Function:

This is where to set the value that corresponds to the rated motor speed

that can be seen from the nameplate data.

M,N

Description of choice:

Select a value that corresponds to the nameplate data on the motor.

NB!

The max. value equals f

rameter 104

Motor frequency, f

M,N

x 60. f

to be set in pa-

M,N

107 Automatic motor tuning, AMT

Value:

Optimisation off (AMT off) [0]

Optimisation on (AMT start) [2]

Function:

Automatic motor tuning is an algorithm that measures stator resistance

without the motor axle turning. This means that the motor is not de-

livering any torque.

AMT can be used with benefit when initialising units where the user wish-

es to optimise adjustment of the frequency converter to the motor being

used. This is used in particular when the factory setting does not suffi-

ciently cover the motor.

For the best possible tuning of the frequency converter it is recommended

that AMT is performed on a cold motor. It should be noted that repeated

AMT runs can cause heating of the motor, resulting in an increase in the

stator resistance R

. As a rule, however, this is not critical.

AMT is performed as follows:

Start AMT:

1. Give a STOP signal.

2. Parameter 107

misation on

Automatic motor tuning

3. A START signal is given and parameter 107

is reset to [0] when AMT has been completed.

tuning

is set at value [2]

Automatic motor

Opti-

In factory setting START requires terminals 18 and 27 to be connected

to terminal 12.

Complete AMT:

AMT is completed by giving a RESET signal. Parameter 108

sistance, Rs

is updated with the optimised value.

Stator re-

Interrupting AMT:

AMT can be interrupted during the optimisation procedure by giving a

STOP signal.

When using the AMT function the following points should be observed:

- For AMT to be able to define the motor parameters as well as

possible, the correct type plate data for the motor connected to

the frequency converter must be keyed into parameters 102 to

106.

- Alarms will appear in the display if faults arise during tuning of

the motor.

- As a rule the AMT function will be able to measure the R

values

for motors that are 1-2 times larger or smaller than the fre-

quency converter's nominal size.

- If you wish to interrupt automatic motor tuning, press the

[STOP/RESET] key.

NB!

AMT may not be performed on motors connected in

parallel, nor may setup changes be made while AMT is

running.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

Description of choice:

Select

Optimisation on

[2] if you want the frequency converter to perform

automatic motor tuning.

108

Stator resistance R

Value:

0.000 - X.XXX 

Depends on choice of motor

Function:

After setting of parameters 102-106

Nameplate data,

a number of ad-

justments of various parameters is carried out automatically, including

stator resistance R

The shaft performance can be improved by fine-tuning R

. A manually entered RS must apply to a cold motor.

and XS, see

procedure below.

NB!

Parameters 108

reactance X

Stator resistance RS

are normally not to be changed if name-

and 109

Stator

plate data has been set.

Description of choice:

can be set as follows:

1. Use the factory settings of R

which the frequency converter

itself chooses on the basis of the motor nameplate data.

2. The value is stated by the motor supplier.

3. The value is obtained through manual measurements: R

calculated by measuring the resistance R

phase terminals. R

is set automatically when AMT has been completed. See pa-

4. R

rameter 107

109

Stator reactance X

= 0.5 x R

Auto motor adaption.

PHASE-PHASE

can be

between two

Value:

0.00 - X,XX 

Depends on choice of motor

Function:

After setting of parameters 102-106

Nameplate data

, a number of ad-

justments of various parameters are made automatically, including stator

reactance X

. The shaft performance can be improved by fine-tuning R

and XS, see procedure below.

Description of choice:

can be set as follows:

1. The value is stated by the motor supplier.

2. The value is obtained through manual measurements X

is ob-

tained by connecting a motor to mains and measuring the

phase-phase voltage U

3 ×

and the idle current  .

− 2

XL: See parameter 142.

3. Use the factory settings of X

which the frequency converter it-

self chooses on the basis of the motor nameplate data.

117 Resonance dampening

Value:

0 - 100 %

0 %

Function:

Reduces the output voltage when running at low load for avoiding reso-

nance phenomena.

Description of choice:

If 0 is selected, there will be no reduction. If 100 % is selected, the volt-

age is reduced to 50% at no load.

119 High start torque

Value:

0.0 - 0.5 sec.

Function:

To ensure a high start torque approx. 1.8 x I

can be permitted for max.

INV.

0.5 sec. The current is, however, limited by the frequency converter's

(inverter's) safety limit. 0 sec. corresponds to no high start torque.

Description of choice:

Set the necessary time for which a high start torque is required.

120 Start delay

Value:

0.0 - 10.0 sec.

Function:

This parameter enables a delay of the start-up time after the conditions

for start have been fulfilled. When the time has passed, the output fre-

quency will start by ramping up to the reference.

Description of choice:

Set the necessary time before commencing to accelerate.

121 Start function

Value:

DC hold during start delay time

(DC HOLD/DELAY TIME) [0]

DC brake during start delay time

(DC BRAKE/DELAY TIME) [1]

Coasting during start delay time

(COAST/DELAY TIME) [2]

Start frequency/voltage clockwise

(CLOCKWISE OPERATION) [3]

Start frequency/voltage in reference direction

(VERTICAL OPERATION) [4]

Function:

This is where to choose the required mode during the start delay time

(parameter 120

Start delay time

Description of choice:

Select

DC hold during start delay time

[0] to energize the motor with a

DC hold voltage during the start delay time. Set voltage in parameter 137

DC hold voltage

Choose

DC brake during start delay time

[1] to energize the motor with

a DC brake voltage during the start delay time. Set voltage in parameter

132

DC brake voltage

Choose

Coasting during start delay time

[2] and the motor will not be

controlled by the adjustable frequency drive during the start delay time

(inverter turned off).

Choose

Start frequency/voltage clockwise

scribed in parameter 130

Start frequency

[3] to obtain the function de-

and 131

Voltage at start

start delay time. Regardless of the value assumed by the reference signal,

the output frequency equals the setting in parameter 130

0.0 sec.

during

Start frequen-

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

and the output voltage will correspond to the setting in parameter 131

Voltage at start

This functionality is typically used in hoist applications. It is used in par-

ticular in applications in which a cone anchor motor is applied, where the

direction of rotation is to start clockwise followed by the reference direc-

tion.

Select

function described in parameter 130

start

during the start delay time.

The direction of rotation of the motor will always follow in the reference

direction. If the reference signal equals zero, the output frequency will

equal 0 Hz, while the output voltage will correspond to the setting in

parameter 131

zero, the output frequency will equal parameter 130

the output voltage will equal parameter 131

tionality is used typically for hoist applications with counterweight. It is

used in particular for applications in which a cone anchor motor is applied.

The cone anchor motor can break away using parameter 130

quency

122 Function at stop

Value:

Coasting (COAST) [0]

DC hold (DC HOLD) [1]

Function:

This is where to choose the function of the frequency converter after the

output frequency has become lower than the value in parameter 123

Start frequency/voltage in reference direction

Start frequency

Voltage at start

. If the reference signal is different from

Voltage at start

and parameter 131

Voltage at start

[4] to obtain the

and 131

Voltage at

Start frequency

. This func-

Start fre-

and

The

min. frequency for activation of function at stop

and when the output frequency has been ramped down to 0 Hz.

Description of choice:

Select

Coasting

[0] if the frequency converter is to 'let go' of the motor

(inverter turned off).

Select DC hold [1] if parameter 137

123 Min. frequency for activation of function at stop

Value:

0,1 - 10 Hz

Function:

In this parameter, the output frequency is set at which the function se-

lected in parameter 122

Description of choice:

Set the required output frequency.

Function at stop

NB!

If parameter 123 is set higher than parameter 130,

then the start delay function (parameter 120 and 121)

will be skipped.

NB!

If parameter 123 is set too high, and DC hold has been

chosen in parameter 122, the output frequency will

jump to the value in parameter 123 without ramping

up. This may cause an overcurrent warning / alarm.

DC hold voltage

or after a stop command

is to be activated.

0,1 Hz

is to be activated.

4.3.2 DC Braking

During DC braking DC voltage is supplied to the motor, and this will cause

the shaft to be brought to a standstill. In parameter 132

age

DC brake voltage can be preset from 0-100%. Max. DC brake voltage

depends on the motor data selected.

In parameter 126

parameter 127

braking becomes active is selected. If a digital input is programmed to

DC braking inverse

be activated. When a stop command becomes active, DC braking is ac-

tivated when the output frequency is less than the brake cut-in frequency.

126 DC brake time

Value:

0 - 60 sec.

Function:

In this parameter, the DC brake time is set at which parameter 132

brake voltage

DC braking time

DC brake cut-in frequency

[5] and shifts from logic '1' to logic '0', DC braking will

NB!

DC braking may not be used if the inertia in the motor

shaft is more than 20 times greater than the motor's

internal inertia.

is to be active.

DC braking time is determined and in

the frequency at which DC

DC brake volt-

10 sec

Description of choice:

Set the required time.

127 DC brake cut-in frequency

Value:

0.0 (OFF) - par. 202

Output frequency high limit, f

Function:

In this parameter, the DC brake cut-in frequency is set at which the DC

brake is to be activated in connection with a stop command.

Description of choice:

Set the required frequency.

128 Thermal motor protection

Value:

No protection (NO PROTECTION) [0]

Thermistor warning

(THERMISTOR WARN) [1]

Thermistor trip (THERMISTOR TRIP) [2]

ETR warning 1 (ETR WARNING 1) [3]

ETR trip 1 (ETR TRIP 1) [4]

ETR warning 2 (ETR WARNING 2) [5]

ETR trip 2 (ETR TRIP 2) [6]

ETR warning 3 (ETR WARNING 3) [7]

ETR trip 3 (ETR TRIP 3) [8]

MAX

OFF

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

ETR warning 4 (ETR WARNING 4) [9]

ETR trip 4 (ETR TRIP 4) [10]

Function:

The frequency converter can monitor the motor temperature in two dif-

ferent ways:

- Via a PTC thermistor that is mounted on the motor. The ther-

mistor is connected between terminal 31a / 31b.

to be selected if a possibly integrated thermistor in the motor is

to be able to stop the frequency converter if the motor over-

heats. The cut-out value is 3 k.

If a motor features a Klixon thermal switch instead, this can also

be connected to the input. If motors operate in parallel, the

thermistors/thermal switches can be connected in series (total

resistance lower than 3 k).

- Thermal load calculation (ETR - Electronic Thermal Relay),

based on present load and time. This is compared with the rated

motor current I

lations take into account the need for lower loading at low

speeds due to the motor's internal ventilation being reduced.

and rated motor frequency f

M,N

Thermistor

. The calcu-

M,N

Description of choice:

No protection

Select

is overloaded.

Select

Thermistor warning

becomes too hot.

Thermistor trip

Select

mistor becomes too hot.

ETR warning

Select

according to the calculations. You can also programme the frequency

converter to give a warning signal via the digital output.

ETR Trip

Select

to the calculations.

Select

ETR warning 1-4

loaded according to the calculations. You can also programme the fre-

quency converter to give a warning signal via one of the digital outputs.

ETR Trip 1-4

Select

cording to the calculations.

130 Start frequency

Value:

0.0 - 10.0 Hz

Function:

The start frequency is active for the time set in parameter 120

lay

, after a start command. The output frequency will 'jump' to the next

preset frequency. Certain motors, such as conical anchor motors, need

an extra voltage/start frequency (boost) at start to disengage the me-

chanical brake. To achieve this parameters 130

Initial voltage

Description of choice:

Set the required start frequency. It is a precondition that parameter 121

Start function quency voltage in reference direction delay

a time is set and a reference signal is present.

[0] if you do not want a warning or trip when a motor

[1] if you want a warning when the connected

[2] if you want a trip when the connected ther-

if you want a warning when the motor is overloaded

if you want a trip when the motor is overloaded according

if you want a warning when the motor is over-

if you want a trip when the motor is overloaded ac-

NB!

This function cannot protect the individual motors in

the case of motors linked in parallel.

Start frequency

are used.

, is set to

Start frequency/voltage clockwise

[4] and that in parameter 120

NB!

If parameter 123 is set higher than parameter 130, the

start delay function (parameter 120 and 121) will be

skipped.

[3] or

0.0 Hz

Start de-

and 131

Start fre-

Start

ETR functions 1-4 correspond to Setup 1-4. ETR functions 1-4 do not

begin to calculate the load until you switch to the Setup in which they

have been selected. This means that you can use the ETR function even

when changing between two or more motors.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

131 Initial voltage

Value:

0.0 - 200.0 V

Function:

Initial voltage

a start command. This parameter can be used for example for lifting/

dropping applications (conical anchor motors).

Description of choice:

Set the required voltage necessary to cut out the mechanical brake. It is

assumed that parameter 121

voltage clockwise

is active for the time set in parameter 120

Start function

[3] or

Start frequency/voltage in reference direction

, is set to

Start delay

Start frequency/

0.0 V

, after

VLT® Decentral FCD 300 Design Guide 4 Programming

[4] and that in parameter 120

ence signal is present.

132 DC brake voltage

Value:

0 - 100% of max. DC brake voltage

Function:

In this parameter, the DC brake voltage is set which is to be activated at

stop when the DC brake frequency set in parameter 127

in frequency

input or via serial communication. Subsequently, the DC brake voltage

will be active for the time set in parameter 126

To be set as a percentage value of the max. DC brake voltage, which

depends on the motor.

A higher start torque can be obtained by increasing the start voltage.

Small motors (< 1.0 kW) normally require a high start voltage.

The factory setting will be suitable for must applications, the value may

need to be increase gradually for high torque application.

In this parameter, the load characteristic is set. By increasing the load

compensation, the motor is given an extra voltage and frequency sup-

plement at increasing loads. This is used e.g. in motors/applications in

which there is a big difference between the full-load current and idle-load

current of the motor.

is reached, or if

Description of choice:

133 Start voltage

Value:

0.00 - 100.00 V

Function:

Description of choice:

Warning: If the use of start voltage is exaggerated, this

may lead to over-energizing and overheating of the

motor and the frequency converter may cut out.

134 Load compensation

Value:

0.0 - 300.0%

Function:

NB!

If this value is set too high, the frequency converter

may cut out because of overcurrent.

Start delay

a time is set, and that a refer-

DC braking inverse

DC brake time

DC brake cut-

is active via a digital

Depends on unit

100.0%

Description of choice:

If the factory setting is not adequate, load compensation must be set to

enable the motor to start at the given load.

Warning: Should be set to 0% in connection with syn-

chronous and parallel-coupled motors and in the case

of quick load changes. Too high load compensation

may lead to instability.

135 U/f-ratio

Value:

0.00 - 20.00 V/Hz

Function:

This parameter enables a shift in the ratio between output voltage (U)

and output frequency (f) linearly, so as to ensure correct energizing of

the motor and thus optimum dynamics, accuracy and efficiency. The U/

f-ratio only affects the voltage characteristic if a selection has been made

Constant torque

Description of choice:

The U/f-ratio is only to be changed if it is not possible to set the correct

motor data in parameter 102-109. The value programmed in the factory

settings is based on idle operation.

136 Slip compensation

Value:

-500 - +500% of rated slip compensation

Function:

Slip compensation is calculated automatically, on the basis of such data

as the rated motor speed n

can be fine-tuned, thereby compensating for tolerances on the value for

. Slip compensation is only active if a selection has been made of

M,N

Speedregulation, open loop stant torque

Description of choice:

Key in a % value.

137 DC hold voltage

Value:

0 - 100% of max. DC hold voltage

Function:

This parameter is used to keep the motor (holding torque) at start/stop.

Description of choice:

This parameter can only be used if a selection has been made of

hold

in parameter 121

as a percentage value of the max. DC hold voltage, which depends on

the choice of motor.

138 Brake cut out value

Value:

0.5 - 132.0/1000.0 Hz

Function:

Here you can select the frequency at which the external brake is released,

via the output defined in parameter 323

output, terminal 46

[1] parameter 101

M,N

[0] in parameter 100

[1] in parameter 101

Start function

Torque characteristic.

. In this parameter, the slip compensation

Torque characteristic

or 122

Relay output 1-3

(optionally also terminal 122 and 123).

Function at stop

Depends on unit

Configuration

or 341

100%

and

Con-

. To be set

3.0 Hz

Digital

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

Description of choice:

Set the required frequency.

139 Brake cut in frequency

Value:

0.5 - 132.0/1000.0 Hz

Function:

Here you can select the frequency at which the external brake is activa-

ted; this takes place via the output defined in parameter 323

or 341

1-3

Set the required frequency.

This is where the user selects the minimum motor current running for the

mechanical brake to be released. Current monitoring is only active from

stop until the point when the brake is released.

This is an extra safety precaution, aimed at guaranteeing that the load is

not lost during start of a lifting/lowering operation.

After setting of parameters 102-106

justments of various parameter is made automatically, including the

leakage reactance X

tuning the leakage reactance X

Digital output terminal 46

Description of choice:

140 Current, minimum value

Value:

0 % - 100 % of inverter output current

Function:

Description of choice:

142

Value:

0.000 - XXX,XXX 

Function:

Description of choice:

can be set as follows:

1. The value is stated by the motor supplier.

2. Use the factory settings of X

Leakage reactance X

is sum of rotor and stator leakage reactance.

. The shaft performance can be improved by fine-

NB!

Parameter 142

not to be changed if the nameplate data have been set,

parameters 102-106.

self chooses on the basis of the motor nameplate data.

(Optionally also 122 and 123).

Depends on choice of motor

Nameplate data

, a number of ad-

The leakage reactance XL

which the frequency converter it-

3.0 Hz

Relay output

0 %

is normally

NB!

If the value in par. 144 is increased, the motor current

will simultaneously increase significantly when gener-

ator loads are applied. The parameter should therefore

only be changed if it is guaranteed during measure-

ment that the motor current in all operating situations

will never exceed the maximum permitted current in

the motor.

read out from the display.

146 Reset voltage vector

Value:

*Off (OFF) [0]

Reset (RESET) [1]

Function:

When the voltage vector is reset it is set to the same starting point each

time a new process commences.

Description of choice:

Select reset (1) when running unique processes each time they arise. This

will enable repetitive precision when stopping to be improved. Select Off

(0) for example for lifting/lowering operations or synchronous motors. It

is an advantage that the motor and the frequency converter are always

synchronized.

147 Motor type

Value:

*General (GENERAL) [0]

Danfoss Bauer (DANFOSS BAUER) [1]

Function:

This parameter selects the type of motor connected to the frequency

converter.

Description of choice:

The value can be selected general for most motor brands. Select Danfoss

Bauer for optimal settings for Danfoss Bauer gear motors.

Please note

: that the current cannot be

144 Gain AC brake

Value:

1.00 - 1.50

Function:

This parameter is used to set the AC brake. Using par. 144 it is possible

to adjust the size of the generator torque that can be applied to the motor

without the intermediate circuit voltage exceeding the warning level.

Description of choice:

The value is increased if a greater possible brake torque is required. If

1.0 is selected, this corresponds to the AC brake being inactive.

1.30

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

4.4 Parameter Group 2-** References & Limits

200 Output frequency range

Value:

Only clockwise, 0 - 132 Hz

(132 Hz CLOCKWISE) [0]

Both directions, 0 - 132 Hz

(132 Hz BOTH DIRECT) [1]

Anti-clockwise only, 0 - 132 Hz

(132 Hz COUNTER CLOCK) [2]

Clockwise only, 0 - 1000 Hz

(1000 Hz CLOCK WISE) [3]

Both directions, 0 - 1000 Hz

(1000 Hz BOTH DIRECT) [4]

Anti-clockwise only, 0 - 1000 Hz

(1000 Hz COUNTER CLOCK) [5]

Function:

This parameter guarantees protection against unwanted reversing. Fur-

thermore, the maximum output frequency can be selected that is to apply

regardless of the settings of other parameters. This parameter has no

function if

100

Select the required direction of rotation as well as the maximum output

frequency. Please note that if

only

be limited to the range ± f

cance).

Process regulation, closed loop

Configuration

Description of choice:

[2]/[5] is selected, the output frequency will be limited to the range

MIN-f MAX

. If

Both directions

[1]/[4] is selected, the output frequency will

(the minimum frequency is of no signifi-

MAX

has been selected in parameter

Clockwise only

[0]/[3] or

Anti-clockwise

201

Value:

0.0 - f

Function:

In this parameter, a minimum motor frequency limit can be selected that

corresponds to the minimum speed at which the motor is allowed to run.

Both directions

range

, the minimum frequency is of no significance.

Description of choice:

The value chosen can range from 0.0 Hz to the frequency set in param-

eter 202

202

Value:

MIN

Function:

In this parameter, a maximum output frequency limit can be selected that

corresponds to the highest speed at which the motor is allowed to run.

Description of choice:

A value can be selected from f

Output frequency range

Output frequency low limit, f

MAX

has been selected in parameter 200

Output frequency high limit, f

- 132/1000 Hz (par. 200

NB!

The output frequency of the frequency converter can

never assume a value higher than 1/10 of the switch-

ing frequency (parameter 411

MIN

Output frequency

MAX

Output frequency range

)

Switching frequency

to the value chosen in parameter 200

MIN

0.0 Hz

132 Hz

4.4.1 Handling of References

Handling of references is described in the block diagram below. The block

diagram shows how a change in one parameter can affect the resulting

reference.

Parameters 203 to 205

tion

define how the handling of references can be performed. The pa-

rameters mentioned can be active in both closed and open loop.

Reference

and parameter 214

MG.90.S1.02 - VLT® is a registered Danfoss trademark

Reference func-

Remote controlled references are defined as:

- External references, such as analogue inputs 53 and 60, pulse

references via terminal 33 and references from serial commu-

nication.

- Preset references.

The resulting reference can be shown on the LCP control unit's display by

selecting

Reference

[%] in parameters 009-012

Display readout

and can

4 Programming VLT® Decentral FCD 300 Design Guide

be shown as one unit by selecting

ternal references can be shown on the LCP control unit's display as a %

of the area from

. Select

Ref

MAX

readout

It is possible to have both references and external references simultane-

ously. In parameter 214

determine how preset references should be added to the external refer-

ences.

Minimum reference, Ref

External reference, %

if a readout is desired.

Reference function

Reference [unit]

[25] in parameters 009-012

. The sum of the ex-

Maximum reference,

MIN

a selection can be made to

Display

There is also an independent local reference in parameter 003

erence

, in which the resulting reference is set using the [+/-] keys. When

the local reference has been selected, the output frequency range is limi-

ted by parameter 201

Output frequency high limit, f

202

The local reference unit depends on the selection in parameter 100

Output frequency low limit, f

MAX

MIN

Local ref-

and parameter

Con-

figuration.

203 Reference range

Value:

Min. reference - Max reference (min - max) [0]

-Max. reference - Max. reference

(-max - +max) [1]

Function:

In this parameter you select whether the reference signal must be posi-

tive or whether it can be both positive and negative. The minimum limit

may be a negative value, unless in parameter 100

lection has been made of

Min ref. - Max. ref.

selected in parameter 100

Description of choice:

Select the required range.

204

Value:

Par. 100

Config.

205 Ref

MAX

Par. 100

Config.

imum feedback

Function:

Minimum reference is an expression of the minimum possible value of the

total of all references. If in parameter 100

tion, closed loop

minimum reference is limited by parameter 414

imum reference is ignored if the local reference is active.

Speed regulation, closed loop

[0], if

Process regulation, closed loop Configuration

Minimum reference, Ref

Open loop

Closed loop

- par. 205

[1] or

[0].-100,000.000 - par.

[1]/[3].-Par. 414

Ref

MAX

Process regulation, closed loop

Configuration

. You should select

MIN

Min-

a se-

[3] has been

0.000 Hz

0.000 rpm/

par 416

Configuration, Speed regula-

[3] is selected, the

Minimum feedback

. Min-

The reference unit can be defined from the following table:

Par. 100

Configuration

Open loop [0] Hz

Speed reg, closed loop [1] rpm

Process reg, closed loop [3] Par. 416

Description of choice:

The minimum reference is preset if the motor has to run at a minimum

speed, regardless of whether the resulting reference is 0.

205

Value:

Par. 100

1000.000 Hz

Par. 100

Ref

Function:

The maximum reference gives the highest value that can be assumed by

the sum of all references. If

Configuration

100

parameter 415

Maximum reference is ignored if the local reference is active.

The reference unit can be defined from the following table:

Maximum reference, Ref

Config.

- Par. 415

MIN

Max. feedback

the maximum reference cannot exceed the value in

Maximum feedback

Open loop

Closed loop

MAX

[0].Par. 204

[1]/[3]. Par. 204

Ref

MIN

[1]/[3] is selected in parameter

Unit

50.000 Hz

50.000 rpm/

par 416

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

Par. 100

Configuration

Unit Open loop [0] Hz Speed reg, closed loop [1] rpm Process reg, closed loop [3] Par. 416

Description of choice:

Maximum reference is set, if the speed of the motor is to be max. the set

value, regardless of the whether the resulting reference is greater than

the maximum reference.

206 Ramp type

Value:

Linear (Linear) [0]

Sin shaped (SIN SHAPED) [1]

shaped (S-SHAPED 2) [2]

Sin

Function:

You can choose between a linear, an S-shaped and an S

Description of choice:

Select the required ramp type depending on the required acceleration/

deceleration process.

ramp process.

Description of choice:

Set the required ramp-up time.

208 Ramp-down time 1

Value:

0.02 - 3600.00 sec

Function:

The ramp-down time is the deceleration time from the rated motor fre-

quency f

overvoltage arises in the inverter because of generating operation of the

motor.

Set the required ramp-down time.

See description of parameter 207

Set the required ramp-up time. Shift from ramp 1 to ramp 2 by activating

Ramp 2

See description of parameter 208

Set the required ramp-down time. Shift from ramp 1 to ramp 2 by acti-

vating

(parameter 104

M,N

Description of choice:

209 Ramp-up time 2

Value:

0.02 - 3600.00 sec.

Function:

Motor frequency, f

Ramp-up time 1

Description of choice:

via a digital input.

210 Ramp-down time 2

Value:

0.02 - 3600.00 sec.

Function:

Ramp-down time 1

Description of choice:

Ramp 2

via a digital input.

) to 0 Hz, provided no

M,N

3.00 sec

207 Ramp-up time 1

Value:

0.02 - 3600.00 sec

Function:

The ramp-up time is the acceleration time from 0 Hz to the rated motor

frequency f

the output current will not reach the current limit (set in parameter 221

Current limit I

(parameter 104

M,N

LIM

Motor frequency, f

). It is assumed that

M,N

3.00 sec

211 Jog ramp time

Value:

0.02 - 3600.00 sec.

Function:

The jog ramp time is the acceleration/deceleration time from 0 Hz to the

rated motor frequency f

assumed that the output current will not reach the current limit (set in

parameter 221

The jog ramp time starts if a jog-signal is given via the LCP control panel,

one of the digital inputs or the serial communication port.

Current limit I

(parameter 104

M,N

LIM

Motor frequency, f

3.00 sec

). It is

M,N

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

Description of choice:

Set the required ramp time.

212 Quick-stop ramp-down time

Value:

0.02 - 3600.00 sec.

Function:

The quick-stop ramp-down time is the deceleration time from the rated

motor frequency to 0 Hz, provided no overvoltage arises in the inverter

because of generating operation of the motor, or if the generated current

exceeds the current limit in parameter 221

is activated via one of the digital inputs or the serial communication.

Description of choice:

Set the required ramp-down time.

213 Jog frequency

Value:

0.0 - Par. 202 Output frequency high limit, f

Current limit I

MAX

3.00 sec

. Quick-stop

LIM

10.0 Hz

4.4.2 Reference Function

The example shows how the resulting reference is calculated when

references Reference function

erence can be seen in the section entitled

the drawing in

is used together with

. The formula for the calculation of the resulting ref-

Handling of references

Sum

and

Relative

All about the FCD 300

in parameter 214

Preset

. See also

Function:

Jog frequency f

converter supplies to the motor when the Jog function is activated. Jog

can be activated via the digital inputs, serial communication or via the

LCP control panel, on the condition that this is active in parameter 015

Local jog

Description of choice:

Set the required frequency.

The graph shows the resulting reference in relation to the external ref-

erence, which varies from 0-10 Volt. Parameter 214

is programmed to

a graph in which parameter 215

means a fixed output frequency that the frequency

JOG

Sum

[0] and

Relative

[1] respectively. Also shown is

Preset reference 1

Reference function

is programmed to 0

The following parameters are preset:

Par. 204 Par. 205 Par. 215 Par. 308 Par. 309 Par. 310

When parameter 214

preset

ces as a percentage of the reference range. If terminal 53 is applied an

analogue input voltage of 4 Volt will be the resulting reference:

Par. 214

Par. 204

Minimum reference Maximum reference Preset reference Term.53, Analogue input Term.53, min. scaling Term.53, max. scaling

Reference function

Preset references

(par. 215-218) is added to the external referen-

Reference function

Minimum reference

is set to

= Sum [0]:

10 Hz 50 Hz 15 % Reference 0 V 10 V

Sum

[0] one of the

10.0 Hz

Reference contribution at 4 Volt 16.0 Hz

Par. 215

Preset reference

6.0 Hz

Resulting reference 32.0 Hz

When parameter 214

Preset references (par. 215-218) are added as a percentage of the total

of the present external references. If terminal 53 is applied to an ana-

logue input voltage of 4 Volt the resulting reference will be:

Par. 214

Par. 204

Reference function

Minimum reference

is set to

Relative

= Relative [1]:

[1] the defined

10.0 Hz

Reference effect at 4 Volt 16.0 Hz

Par. 215

Preset reference

2.4 Hz

Resulting reference 28.4 Hz

214 Reference function

Value:

Sum (sum) [0]

Relative (relative) [1]

External/preset (external/preset) [2]

Function:

It is possible to define how preset references are to be added to the other

references; for this purpose, use

using the

erences and preset references is required.

External reference is the sum of the analogue references, pulse referen-

ces and any references from serial communication.

External/preset

Sum

Relative

. It is also possible by

to select whether a shift between external ref-

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

Description of choice:

Sum

[0] is selected, one of the adjusted preset references (parameters

215-218

Preset reference

ence range (Ref

Relative

[1] is selected, one of the added preset references (parameters

215-218

Preset reference

) is summarized as a percentage of the refer-

- Ref

MIN

), added to the other external references.

MAX

) is summarized as a percentage of the sum of

present external references.

External/preset

[2] is selected, it is possible via a digital input to shift

between external references or preset references. Preset references will

be a percentage value of the reference range.

NB!

If Sum or Relative is selected, one of the preset refer-

ences will always be active. If the preset references

are to be without influence, they must be set to 0%

(factory setting).

215 Preset reference 1 (PRESET REF. 1)

216 Preset reference 2 (PRESET REF. 2)

217 Preset reference 3 (PRESET REF. 3)

218 Preset reference 4 (PRESET REF. 4)

Value:

-100.00% - +100.00%

0.00%

of the reference range/external reference

Function:

Four different preset references can be programmed in parameters

215-218

Preset reference

The preset reference is stated as a percentage of the reference range

(Ref

- Ref

MIN

depending on the choice made in parameter 214

) or as a percentage of the other external references,

MAX

Reference function

. The

choice between preset references can be made via the digital inputs or

via serial communication.

Preset ref., msb

Preset ref. lsb 0 0 Preset ref. 1 0 1 Preset ref. 2 1 0 Preset ref. 3 1 1 Preset ref. 4

Slow down

eter 219

is active via a digital input, the percentage value in param-

Catch up/Slow down reference

will be deducted from the re-

mote-controlled reference.

221

Current limit, I

LIM

Value:

0 - XXX.X % of par. 105

160 %

Function:

In this parameter, the maximum output current I

set value corresponds to the maximum output current I

is set. The factory-

LIM

. If the current

MAX

limit is to be used as motor protection, set the rated motor current. If the

current limit is set above 100% (the rated output current of the frequency

converter, I

), the frequency converter can only handle a load inter-

INV.

mittently, i.e. for short periods at a time. After the load has been higher

, it must be ensured that for a period the load is lower than

than I

INV.

Please note that if the current limit is set at a lower value than

INV.

, the acceleration torque will be reduced to the same extent.

INV.

Description of choice:

Set the required maximum output current I

223

Warning: Low current, I

LIM

LOW

Value:

0.0 - par. 224

Warning: High current, I

HIGH

0.0 A

Function:

If the output current falls below the preset limit I

Parameters 223-228

Warning functions

are out of function during ramp-

a warning is given.

LOW

up after a start command and after a stop command or during stop.The

warning functions are activated when the output frequency has reached

the resulting reference. The signal outputs can be programmed to give a

warning signal via terminal 46 and via the relay output.

Description of choice:

The lower signal limit of the output current I

must be programmed

LOW

within the normal working range of the frequency converter.

Description of choice:

Set the preset reference(s) that is/are to be the options.

219 Catch up/ Slow down reference

Value:

0.00 - 100% of the given reference

0.00%

Function:

In this parameter, the percentage value can be set which will either be

added to or deducted from the remote-controlled references.

The remote-controlled reference is the sum of preset references, ana-

logue references, pulse reference and any references from serial com-

munication.

Description of choice:

Catch up

is active via a digital input, the percentage value in parameter

219

Catch up/Slow down reference

will be added to the remote-control-

led reference.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

224

Warning: High current, I

HIGH

Value:

0 - I

MAX

Function:

If the output current exceeds the preset limit I

Parameters 223-228

Warning functions

do not work during ramp-up after

a warning is given.

HIGH

a start command and after stop command or during stop. The warning

4 Programming VLT® Decentral FCD 300 Design Guide

functions are activated when the output frequency has reached the re-

sulting reference. The signal outputs can be programmed to give a

warning signal via terminal 46 and via the relay output.

Description of choice:

The output current's upper signal limit I

must be programmed within

HIGH

the frequency converter's normal operating range. See drawing at pa-

rameter 223

225

Warning: Low current, I

Warning: Low frequency, f

LOW

Value:

0.0 - par. 226

Warn.: High frequency, f

HIGH

0.0 Hz

Function:

If the output frequency falls below the preset limit f

, a warning is giv-

LOW

en.

Parameters 223-228

Warning functions

are out of function during ramp-

up after a start command and after stop command or during stop. The

warning functions are activated when the output frequency has reached

the resulting reference. The signal outputs can be programmed to give a

warning signal via terminal 46 and via the relay output.

Description of choice:

The lower signal limit of the output frequency f

must be programmed

LOW

within the normal operating range of the frequency converter. See draw-

ing at parameter 223

226

Warning: Low current, I

Warning: High frequency f

LOW

HIGH

Value:

Par. 200

- 132 Hz

LOW

Par. 200

- 1000 Hz

LOW

Frequency range

= 0-132 Hz [0]/[1].par. 225

132.0 Hz

= 0-1000 Hz [2]/[3].par. 225

132.0 Hz

Function:

If the output frequency exceeds the preset limit f

Parameters 223-228

Warning functions

do not work during ramp-up after

a warning is given.

HIGH

a start command and after stop command or during stop. The warning

functions are activated when the output frequency has reached the re-

sulting reference. The signal outputs can be programmed to give a

warning signal via terminal 46 and via the relay output.

Description of choice:

The output frequency's upper signal limit f

must be programmed

HIGH

within the frequency converter's normal operating range. See drawing at

parameter 223

227

Warning: Low current, I

LOW

Warning: Low feedback, FB

LOW

Value:

-100,000.000 - par. 228

Warn.:FB

HIGH

-4000.000

Function:

If the feedback signal falls below the preset limit FB

, a warning is

LOW

given.

Parameters 223-228

Warning functions

are out of function during ramp-

up after a start command and after a stop command or during stop. The

warning functions are activated when the output frequency has reached

the resulting reference.The signal outputs can be programmed to give a

warning signal via terminal 46 and via the relay output.The unit for feed-

back in Closed loop is programmed in parameter 416

Process units

Description of choice:

Set the required value within the feedback range (parameter 414

mum feedback, FB

228

MIN

and 415

Maximum feedback, FB

Warning: High feedback, FB

MAX

HIGH

Mini-

Value:

Par. 227

Warn.: FB

- 100,000.000

LOW

4000.000

Function:

If the feedback signal gets above the preset limit FB

, a warning is

HIGH

given.

Parameters 223-228

Warning functions

are out of function during ramp-

up after a start command and after a stop command or during stop. The

warning functions are activated when the output frequency has reached

the resulting reference. The signal outputs can be programmed to give a

warning signal via terminal 46 and via the relay output. The unit for feed-

back in Closed loop is programmed in parameter 416

Process units

Description of choice:

Set the required value within the feedback range (parameter 414

mum feedback, FB

MIN

and 415

Maximum feedback, FB

MAX

Mini-

229 Frequence bypass, bandwidth

Value:

0 (OFF) - 100 Hz

0 Hz

Function:

Some systems call for some output frequencies to be avoided because of

mechanical resonance problems in the system. In parameters 230-231

Frequency bypass

these output frequencies can be programmed. In this

parameter a bandwidth can be defined on either side of these frequen-

cies.

Description of choice:

The frequency set in this parameter will be centered around parameters

230

Frequency bypass 1

and 231

Frequency bypass 2

230 Frequency bypass 1 (FREQ. BYPASS 1)

231 Frequency bypass 2 (FREQ. BYPASS 2)

Value:

0 - 1000 Hz

0.0 Hz

Function:

Some SYSTEMs call for some output frequencies to be avoided because

of mechanical resonance problems in the SYSTEM.

Description of choice:

Enter the frequencies to be avoided. See also parameter 229

bypass, bandwidth

Frequency

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

4.5 Parameter Group 3-** Inputs and Outputs

Digital inputs Term. no. 1819272933

Value: No function (NO OPERATION) [0] [0] [0] [0] Reset (RESET) [1] [1] [1] [1] [1] Coasting stop inverse (MOTOR COAST INVERSE) [2] [2] [2] [2] [2] Reset and coasting inverse (RESET AND COAST INV.) [3] [3] Quick-stop inverse (QUICK-STOP INVERSE) [4] [4] [4] [4] [4] DC braking inverse (DC-BRAKE INVERSE) [5] [5] [5] [5] [5] Stop inverse (STOP INVERSE) [6] [6] [6] [6] [6] Start (START) Pulse start (LATCHED START) [8] [8] [8] [8] [8] Reversing (REVERSING) [9] Reversing and start (START REVERSING) [10] [10] [10] [10] [10] Start clockwise (ENABLE FORWARD) [11] [11] [11] [11] [11] Start anti-clockwise (ENABLE REVERSE) [12] [12] [12] [12] [12] Jog (JOGGING) [13] [13] [13] Freeze reference (FREEZE REFERENCE) [14] [14] [14] [14] [14] Freeze output frequency (FREEZE OUTPUT) [15] [15] [15] [15] [15] Speed up (SPEED UP) [16] [16] [16] [16] [16] Speed down (SPEED DOWN) [17] [17] [17] [17] [17] Catch-up (CATCH-UP) [19] [19] [19] [19] [19] Slow-down (SLOW-DOWN) [20] [20] [20] [20] [20] Ramp 2 (RAMP 2) [21] [21] [21] [21] [21] Preset ref, LSB (PRESET REF, LSB) [22] [22] [22] [22] [22] Preset ref, MSB (PRESET REF, MSB) [23] [23] [23] [23] [23] Preset reference on (PRESET REFERENCE ON) [24] [24] [24] [24] [24] Precise stop, inverse (PRECISE STOP INV.) [26] [26] Precise start/stop (PRECISE START/STOP) [27] [27] Pulse reference (PULSE REFERENCE) Pulse feedback (PULSE FEEDBACK) Pulse input (PULSE INPUT) [30] Selection of Setup, lsb (SETUP SELECT LSB) [31] [31] [31] [31] [31] Selection of Setup, msb (SETUP SELECT MSB) [32] [32] [32] [32] [32] Reset and start (RESET AND START) [33] [33] [33] [33] [33] Encoder reference (ENCODER REFERENCE) Encoder feedback (ENCODER FEEDBACK) Encoder input (ENCODER INPUT)

par. no. 302 303 304 305 307

[3] [3]

[3]

[7] [7] [7] [7]

[7]

[9] [9] [9]

[9]

[13]

[28]

[29]

[34]2[34] [35]2[35] [36]2[36]

[28]

[29]

[0]

Cannot be selected if

Function:

In these parameters 302-307

tween the different enabled functions related to the digital inputs (ter-

minals 18-33).

Description of choice:

No operation

nals transmitted to the terminal.

Reset

alarms cannot be reset (trip locked) without first disconnecting the mains

supply and reconnecting it. See table under

alarms

is selected if the frequency converter is not to react to sig-

resets the frequency converter after an alarm; however, a few

. Reset is activated on the leading edge of the signal.

Coasting stop inverse

of the motor immediately (output transistors are "turned off"), which

means that the motor runs freely to stop. Logic '0' leads to coasting to

stop.

Reset and coasting inverse

ously with reset. Logical '0' means motor coast stop and reset. Reset is

activated on the falling edge.

Quick stop inverse

parameter 212

DC-braking inverse

DC voltage for a given time, see parameters 126, 127 and 132

. Please note that this function is only active if the value in param-

brake

Pulse output

is selected in par. 341

Digital inputs

it is possible to choose be-

Digital output terminal 46

List of warnings and

is used for making the frequency converter "let go"

are used to activate motor coast simultane-

is used for activating the quick-stop ramp down set in

Quick stop ramp-down time.

is used for stopping the motor by energizing it with a

Logic '0' leads to quick stop.

.2 Settings are identical for terminal 29 and 33.

eter 126

DC braking time

Logic '0' leads to DC braking.

Stop inverse

stop via the selected ramp.

Start

logic '0' = stop.

, a logic '0' means that the motor speed is ramped down to

is selected if a start/stop command is required. Logic '1' = start,

and 132

DC brake voltage

None of the stop commands mentioned above are to

be used as repair switches. Check that all voltage in-

puts are disconnected and that the prescribed time (4

mins.) has passed before repair work is commenced.

is different from 0.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

Latched start

will start the motor, provided no stop command has been given. The mo-

tor can be stopped by briefly activating

Reversing

Logic '0' will not lead to reversing. Logic '1' will lead to reversing. The

reverse signal only changes the direction of rotation, it does not activate

the start. Is not active at

rameter 200

Reversing and start

signal. No active start command is allowed at the same time. Is not active

for

quency range/direction Start clockwise

rotate clockwise when started. Should not be used for

closed loop Start anticlockwise

rotate anticlockwise when started. Should not be used for

lation, closed loop direction

Jog is used to override the output frequency to the jog frequency set in

parameter 213

command has been given, yet not when

braking Freeze reference

only be changed via

active, it will be saved after a stop command and in the event of mains

failure.

Freeze output

frequency can now only be changed via

Speed up

speed is required. This function is only active if

output frequency

Speed up

and if

reduced. The output frequency is changed via the preset ramp times in

parameters 209-210

One pulse (logic '1' minimum high for 14 ms and a minimum break time

of 14 ms) will lead to a speed change of 0.1 % (reference) or 0.1 Hz

(output frequency). Example:

Freeze reference

stopped. The reference will also be saved if the mains are disconnected

Catch-up/Slow-down

or reduced by a programmable percentage value set in parameter 219

Catch-up/Slow-down reference

, if a pulse is applied for min. 14 ms, the frequency converter

Stop inverse

is used for changing the direction of rotation of the motor shaft.

Process regulation, closed loop

Output frequency range/direction

is used for start/stop and for reversing with the same

Process regulation, closed loop

is used if you want the motor shaft only to be able to

. See also parameter 200

Process regulation,

is used if you want the motor shaft only to be able to

. See also parameter 200

Jog frequency

. Jog is active regardless of whether a start

Output frequency range/

Coast stop, Quick-stop

are active.

freezes the present reference. The reference can now

Speed up

freezes the present output frequency (in Hz). The output

NB!

Freeze output

only be stopped if you select

DC braking

and

Speed down

and

Speed down

is active the frequency converter can

Speed up

. If

freeze reference

and

Speed down

Motor coast, Quick stop

via a digital input.

are selected if digital control of the up/down

Freeze reference

has been selected.

is active the reference or output frequency will be increased,

Speed down

Term.

0 0 1 No speed change 0 1 1 Speed up 1 0 1 Speed down 1

is active the reference or output frequency will be

Ramp 2

Term.33Freeze ref/freeze

outp.

1 1 Speed down

can be changed even if the frequency converter has

is selected if the reference value is to be increased

Function

. See also pa-

Output fre-

Process regu-

Freeze

Slow-down Catch-up Function

0 0 Unchanged speed 0 1Increase by % value 1 0 Reduce by % value 1

Ramp 2

is selected if a shift between ramp 1 (parameters 207-208) and

ramp 2 (parameters 209-210) is required. Logic '0' leads to ramp 1 and

logic '1' leads to ramp 2.

Preset reference, lsb

one of the four preset references, see the table below:

Preset ref.

msb

1Reduce by % value

and

Preset reference, msb

makes it possible to select

Preset ref.

lsb 0 0 Preset ref. 1 0 1Preset ref. 2 1 0 Preset ref. 3 1

Preset reference on

erence and preset reference. It is assumed that External/preset [2] has

been selected in parameter 214

controlled references are active, logic '1' = one of the four preset refer-

ences is active, as can be seen from the table above.

Precise stop, inverse

a stop command is repeated. A logic 0 means that the motor speed is

ramped down to stop via the selected ramp.

Precise start/stop

start and stop command is repeated.

Pulse reference

(frequency). 0 Hz corresponds to parameter 204

Ref

. The frequency set in parameter 327/328

MIN

responds to parameter 205

Pulse feedback

(frequency). In parameter 327/328

feedback frequency is set.

Pulse input stop

, see parameter 343

Selection of Setup, lsb

to se lec t o ne of t he four se tups . I t is, ho wev er , a co nd iti on tha t p aram et er

004 is set to

Reset and start

the digital input, this will cause the frequency converter to reset and the

motor will ramp up to the preset reference.

Encoder reference

train (frequency). 0 Hz corresponds to parameter 204

ence, Ref

33/29

corresponds to parameter 205

Encoder feedback

(frequency). In parameter 327/328

feedback frequency is set.

Encoder input Precise stop value

All encoder settings are used in connection with dual track encoders with

direction recognition.

A track connected to terminal 29.

is used for shifting between remote-controlled ref-

is selected to obtain a high degree of accuracy when

is selected to obtain a high degree of accuracy when a

is selected if the reference signal applied is a pulse train

is selected if the feedback signal used is a pulse train

is selected if a specific number of pulses must lead to a

Precise stop

and

Multisetup

MIN

, see parameter 343

can be used as a start function. If 24 V are connected to

is selected if the reference signal applied is a pulse

. The frequency set in parameter 327/328

is selected if the feedback signal used is a pulse train

is selected if a specific number of pulses must lead to a

1Preset ref. 4

Reference function

Maximum reference Ref

Pulse Max 33/29

and parameter 344

Selection of Setup, msb

Maximum reference Ref

Pulse Max 33/29

Precise stop

and parameter 344

Function

. Logic '0' = remote-

Minimum reference,

Pulse Max 33/29

MAX

the maximum pulse

Precise

Counter value

gives the possibility

Minimum refer-

Pulse Max

MAX

the maximum pulse

Counter

cor-

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

B track connected to terminal 33.

308 Terminal 53, analogue input voltage

Value:

No function (NO OPERATION) [0]

Reference (reference) [1]

Feedback (feedback) [2]

Wobble (WOBB.DELTA FREQ [%]) [10]

Function:

In this parameter it is possible to select the function required to be con-

nected to terminal 53. Scaling of the input signal is made in parameter

309

Terminal 53, min. scaling

scaling

Description of choice:

No function

signals connected to the terminal.

lected, the reference can be changed by means of an analogue reference

signal. If reference signals are connected to more than one input, these

reference signals must be added up.If a voltage feedback signal is con-

nected, select

Wobble

The delta frequency can be controlled by the analog input. If

TA FREQ

selected in par. 702 equals 100 % analog input.

Example: Analog input = 4-20 mA, Delta freq. par. 702 = 5 Hz → 4 mA

= 0 Hz and 20 mA = 5 Hz. If this function is chosen, see Wobble Instruc-

tion MI28JXYY for further information.

This parameter is used for setting the signal value that is to correspond

to the minimum reference or the minimum feedback, parameter 204

[0]. Is selected if the frequency converter is not to react to

Feedback

[10]

is selected as analog input (par. 308 or par. 314) the value

309 Terminal 53 Min. scaling

Value:

0.0 - 10.0 Volt

Function:

Minimum reference, Ref

Description of choice:

Set the required voltage value. For reasons of accuracy, compensation

should be made for voltage loss in long signal cables. If the Time out

function is to be used (parameter 317

time out

), the value set must be higher than 1 Volt.

310 Terminal 53 Max. scaling

Value:

0 - 10.0 Volt

Function:

This parameter is used for setting the signal value that is to correspond

to the maximum reference value or maximum feedback, parameter 205

Maximum reference, Ref

Description of choice:

Set the required voltage value. For reasons of accuracy, compensation

should be made for voltage losses in long signal cables.

314 Terminal 60, analogue input current

Value:

No function (no operation) [0]

Reference (reference) [1]

and parameter 310

Reference

[2] on terminal 53.

/ 414

Minimum feedback, FB

MIN

Time out

/ 414

MAX

Maximum feedback, FB

Terminal 53, max.

[1]. If this function is se-

WOBB.DEL-

0.0 Volt

MIN

and 318

Function after

10.0 Volt

MAX

Feedback (feedback) [2]

Wobble (WOBB.DELTA FREQ [%]) [10]

Function:

This parameter allows a choice between the different functions available

for the input, terminal 60. Scaling of the input signal is effected in pa-

rameter 315

max. scaling

Description of choice:

No function

signals connected to the terminal.

lected, the reference can be changed by means of an analogue reference

signal. If reference signals are connected to more than one input, these

reference signals must be added up.

If one current feedback signal is connected, select

minal 60.

Wobble

The delta frequency can be controlled by the analog input. If

TA FREQ

selected in par. 702 equals 100 % analog input.

Example: Analog input = 4-20 mA, Delta freq. par. 702 = 5 Hz → 4 mA

= 0 Hz and 20 mA = 5 Hz. If this function is chosen, see Wobble Instruc-

tion MI28JXYY for further information.

315 Terminal 60 Min. scaling

Value:

0.0 - 20.0 mA

Function:

In this parameter you can set the signal value that will correspond to the

minimum reference or minimum feedback, parameter 204

erence, Ref

Description of choice:

Set the required current value. If the Time out function is to be used

(parameter 317

must be higher than 2 mA.

316 Terminal 60 Max. scaling

Value:

0.0 - 20.0 mA

Function:

This parameter is used for setting the signal value that is to correspond

to the maximum reference value, parameter 205

value, Ref

Description of choice:

Set the required current value.

317 Time out

Value:

1 - 99 sec.

Function:

If the signal value of the reference or feedback signal connected to one

of the input terminals 53 or 60 falls below 50 % of the minimum scaling

for a period longer than the time set, the function selected in parameter

318

if in parameter 309

has been selected, or if in parameter 315

value higher than 2 mA has been selected.

Terminal 60, min. scaling

[0]. Is selected if the frequency converter is not to react to

[10]

is selected as analog input (par. 308 or par. 314) the value

/ 414

MIN

MAX

Function after time out

Minimum feedback, FB

Time out

and 318

will be activated. This function is only active

Terminal 53, min. scaling

and parameter 316

Reference

[1]. If this function is se-

Feedback

MIN

Function after time out

Maximum reference

a value higher than 1 Volt

Terminal 60, min. scaling

Terminal 60,

[2] on ter-

WOBB.DEL-

4.0 mA

Minimum ref-

) the value set

20.0 mA

10 sec.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

Description of choice:

Set the required time.

318 Function after time out

Value:

No operation (NO OPERATION) [0]

Freeze output frequency

(FREEZE OUTPUT FREQ.) [1]

Stop (stop) [2]

Jog (jog) [3]

Max. speed (MAX SPEED) [4]

Stop and trip (STOP AND TRIP) [5]

Function:

This parameter allows a choice of the function to be activated after the

expiry of the Time out (parameter 317

occurs at the same time as a bus time-out function (parameter 513

time interval function

), the time-out function in parameter 318 will be

Time out

). If a time-out function

Bus

activated.

Description of choice:

The output frequency of the adjustable frequency drive can be:

- frozen at the present frequency [1]

- overruled to stop [2]

- overruled to jog frequency [3]

- overruled to max. output frequency [4]

- overruled to stop with subsequent trip [5]

319 Analogue output terminal 42

Value:

No function (NO OPERATION) [0]

External reference min.-max. 0-20 mA

(ref min-max = 0-20 mA) [1]

External reference min.-max. 4-20 mA

(ref min-max = 4-20 mA) [2]

Feedback min.-max. 0-20 mA

(fb min-max = 0-20 mA) [3]

Feedback min.-max. 4-20 mA

(fb min-max = 4-20 mA) [4]

Output frequency 0-max 0-20 mA

(0-fmax = 0-20 mA) [5]

Output frequency 0-max 4-20 mA

(0-fmax = 4-20 mA) [6]

Output current 0-I

0-20 mA

INV

(0-iinv = 0-20 mA) [7]

Output current 0-I

4-20 mA

IINV

(0-iinv = 4-20 mA) [8]

Output power 0-P

0-20 mA

M,N

(0-Pnom = 0-20 mA) [9]

Output power 0-P

4-20 mA

M,N

(0-Pnom = 4-20 mA) [10]

Inverter temperature 20-100 °C 0-20 mA

(TEMP 20-100 C=0-20 mA) [11]

Inverter temperature 20-100 °C 4-20 mA

(TEMP 20-100 C=4-20 mA) [12]

Function:

The analogue output can be used for stating a process value. It is possible

to choose two types of output signals 0 - 20 mA or 4 - 20 mA.

If used as a voltage output (0 - 10 V), a pull-down resistor of 500  must

be fitted to common (terminal 55). If the output is used as a current

output the resulting resistance from the equipment connected may not

exceed 500 .

Description of choice:

No function External Ref

. Is selected if the analogue output is not to be used.

- Ref

MIN

0-20 mA/4-20 mA.

MAX

An output signal is obtained, which is proportional to the resulting refer-

ence value in the interval Minimum reference, Ref

ence, Ref

MIN

(parameters 204/205).

MAX

-FB

0-20 mA/ 4-20 mA.

MAX

- Maximum refer-

MIN

An output signal is obtained, which is proportional to the feedback value

in the interval Minimum feedback, FB

- Maximum feedback, FB

MIN

MAX

(pa-

rameter 414/415).

0-f

0-20 mA/4-20 mA.

MAX

An output signal is obtained, which is proportional to the output frequen-

cy in the interval 0 - f

MAX

0 - I

0-20 mA/4-20 mA.

INV

(parameter 202

MAX

Output frequency, high limit,

An output signal is obtained, which is proportional to the output current

in the interval 0 - I

0 - P

0-20 mA/4-20 mA.

M,N

INV

An output signal is obtained, which is proportional to the present output

power. 20 mA corresponds to the value set in parameter 102

power, P

0 - Temp.

M,N

0-20 mA/4-20 mA.

MAX

Motor

An output signal is obtained, which is proportional to the present heatsink

temperature. 0/4 mA corresponds to a heatsink temperature of less than

20 °C, and 20 mA corresponds to 100 °C.

323 Relay output 1-3

Value:

No function (no operation) [0]

Unit ready (unit ready) [1]

Enable/no warning (enable/no warning) [2]

Running (RUNNING) [3]

Running in reference, no warning

(run on ref/no warn) [4]

Running, no warnings

(RUNNING/NO WARNING) [5]

Running in reference range, no warnings

(RUN IN RANGE/ NO WARN) [6]

Ready - mains voltage within range

(RDY NO OVER/UNDERVOL) [7]

Alarm or warning

(ALARM OR WARNING) [8]

Current higher than current limit, par. 221

(Current limit) [9]

Alarm (ALARM) [10]

Output frequency higher than f

LOW

par. 225

(above frequency low) [11]

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

Output frequency lower than f

(below frequency high) [12]

Output current higher than I

(above current low) [13]

Output current lower than I

(below current high) [14]

Feedback higher than FB

(above feedback low) [15]

Feedback lower than FB

(under feedback high) [16]

Relay 123 (RELAY 123) [17]

Reversing (REVERSE) [18]

Thermal warning (THERMAL WARNING) [19]

Local operation (LOCAL MODE) [20]

Out of frequency range par. 225/226

(out of freq range) [22]

Out of current range

(out of current range) [23]

Out of feedback range

(out of fdbk. range) [24]

Mechanical brake control

(Mech. brake control) [25]

Control word bit 11

(CTRL W. BIT 11) [26]

Function:

The relay output can be used for giving the present status or warning.

The output is activated (1–2 make) when a given condition is fulfilled.

Description of choice:

No function

nals.

Unit ready

converter, and the frequency converter is ready for operation.

. Is selected if the frequency converter is not to react to sig-

, there is a supply voltage on the control card of the frequency

Enable, no warning

no start command has been given. No warning.

Running

, a start command has been given.

HIGH

, the frequency converter is ready for operation, but

Running in reference, no warning Running, no warning

, a start command has been given. No warning.

Ready - mains voltage within range

use; the control card is receiving a supply voltage; and there are no active

control signals on the inputs. The mains voltage lies within the voltage

limits.

Alarm or warning Current limit

parameter 221 Current limit I

Alarm

, The output is activated by an alarm.

, the output is activated by an alarm or warning.

, the output current is higher than the value programmed in

Output frequency higher than f

the value set in parameter 225

Output frequency lower than f

the value set in parameter 226

Output current higher than I

value set in parameter 223

Warning: Low current, I

Output current lower than I

value set in parameter 224

Feedback higher than FB

set in parameter 227

Warning: High current, I

LOW

Warning: Low feedback, FB

par. 226

HIGH

par. 223

LOW

par. 224

HIGH

par. 227

LOW

par. 228

speed according to reference.

, the frequency converter is ready for

LIM

, the output frequency is higher than

LOW

Warning: Low frequency, f

the output frequency is lower than

HIGH

Warning: High frequency, f

, the output current is higher than the

LOW

, the output current is lower than the

HIGH

, the feedback value is higher than the value

LOW

HIGH

LOW

HIGH

Feedback lower than FB

set in parameter 228

Relay 123 Reversing

tation is anti-clockwise. When the direction of motor rotation is clockwise,

the value is 0 V DC.

Thermal warning

frequency converter, or from a thermistor connected to a digital input.

Local operation, operation,

is only used in connection with Profidrive.

, The relay output is activated when the direction of motor ro-

, above the temperature limit in either the motor or the

the output is active when in parameter 002

Local operation

Out of the frequency range,

med frequency range in parameters 225 and 226.

Out of the current range,

range in parameters 223 and 224.

Out of the feedback range,

range in parameters 227 and 228.

Mechanical brake control,

brake (see section about control of mechanical brake in the Design

Guide).

Control word bit 11,

set/reset according to bit 11.

327 Pulse Max. 33

Value:

150 - 110000 Hz

Function:

This parameter is used for setting the signal value that corresponds to

the maximum value set in parameter 205

to the maximum feedback value set in parameter 415

back, FB

Set the required pulse reference or pulse feedback to be connected to

terminal 33.

This parameter is used for setting the signal value that corresponds to

the maximum value set in parameter 205

to the maximum feedback value set in parameter 415

back, FB

Set the required pulse reference or pulse feedback to be connected to

terminal 29.

MAX

Description of choice:

328 Pulse Max. 29

Value:

1000 - 110000 Hz

Function:

MAX

Description of choice:

341 Digital output terminal 46

Value:

No function (NO OPERATION) [0]

Value [0] - [20] see parameter 323

Pulse reference (PULSE REFERENCE) [21]

Value [22] - [25] see parameter 323

Pulse feedback (PULSE FEEDBACK) [26]

Output frequency (PULSE OUTPUTFREQ) [27]

Pulse current (PULSE CURRENT) [28]

Pulse power (PULSE POWER) [29]

, the feedback value is lower than the value

HIGH

Warning: High current, I

HIGH

Local/remote

[1] has been selected.

the output frequency is out of the program-

the motor current is out of the programmed

the feedback signal is out of the programmed

enables you to control an external mechanical

bit 11of the control word, the relay output will be

5000 Hz

Maximum reference, Ref

MAX

Maximum feed-

5000 Hz

Maximum reference, Ref

MAX

Maximum feed-

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

Pulse temperature (PULSE TEMP) [30]

Control word bit 12 (CTRL. W. BIT 12) [31]

Function:

The digital output can be used for giving the present status or warning.

The digital output (terminal 46) gives a 24 V DC signal when a given

condition is fulfilled.

Description of choice:

External Ref

An output signal is obtained, which is proportional to the resulting refer-

ence value in the interval Minimum reference, Ref

ence, Ref

MIN

An output signal is obtained, which is proportional to the feedback value

in the interval Minimum feedback, FB

rameter 414/415).

0-f

MAX

An output signal is obtained, which is proportional to the output frequen-

cy in the interval 0 - f

MAX

0 - I

INV.

An output signal is obtained, which is proportional to the output current

in the interval 0 - I

0 - P

M,N

An output signal is obtained, which is proportional to the present output

power. Par. 342 corresponds to the value set in parameter 102

power, P

0 - Temp.

An output signal is obtained, which is proportional to the present heatsink

temperature. 0 Hz corresponds to a heatsink temperature of less than 20

°C, and 20 mA corresponds to 100 °C.

Control word bit 12,

set/reset according to bit 12.

342 Terminal 46, max. pulse scaling

Value:

150 - 10000 Hz

Function:

This parameter is used for setting the pulse output signal's maximum

frequency.

Description of choice:

Set the required frequency.

343 Precise stop function

Value:

Precise ramp stop (normal) [0]

Counter stop with reset

(Count stop reset) [1]

Counter stop without reset

(Count stop no reset) [2]

Speed-compensated stop (Spd cmp stop) [3]

Speed-compensated counter stop with reset

(Spd cmp cstop w. res) [4]

Speed-compensated counter stop without reset

(Spd cmp cstop no res) [5]

- Ref

MIN

(parameters 204/205).

MAX

-FB

Par. 0-342.

MAX

Par. 0-342.

INV

Par. 0-342.

M,N

Par. 0-342.

MAX

Par. 0-342.

MAX

- Maximum refer-

MIN

(parameter 202

MAX

- Maximum feedback, FB

MIN

Output frequency, high limit,

MAX

(pa-

Motor

bit 12 of the control word. The digital output will be

5000 Hz

Function:

In this parameter you select which stop function is performed in response

to a stop command. All six data selections contain a precise stop routine,

thus ensuring a high level of repeat accuracy.

The selections are a combination of the functions described below.

NB!

Pulse start [8] may

precise stop function.

Description of choice:

Precise ramp stop

the stopping point.

Counter stop

converter runs until the number of pulses programmed by the user have

been received at input terminal 33. In this way an internal stop signal will

activate the normal ramp down time (parameter 208).

The counter function is activated (starts timing) at the flank of the start

signal (when it changes from stop to start).

Speed compensated stop

of the present speed, a stop signal received is delayed internally when

the present speed is lower than the maximum speed (set in parameter

202).

Reset. Counter stop

or without reset.

Counter stop with reset

counted during ramp down 0 Hz is reset.

Counter stop without reset

ramp down to 0 Hz is deducted from the counter value in parameter 344.

344 Counter value

Value:

0 - 999999

Function:

In this parameter you can select the counter value to be used in the in-

tegrated precise stop function (parameter 343).

Description of choice:

The factory setting is 100000 pulses. The highest frequency (max. reso-

lution) that can be registered at terminal 33 is 67.6 kHz.

349 Speed comp delay

Value:

0 ms - 100 ms

Function:

In this parameter the user can set the SYSTEM's delay time (Sensor, PLC,

etc.). If you are running speed-compensated stop, the delay time at dif-

ferent frequencies has a major influence on the way in which you stop.

Description of choice:

The factory setting is 10 ms. This means that it is assumed that the total

delay from the Sensor, PLC and other hardware corresponds to this set-

ting.

[0] is selected to achieve high repetitive precision at

. Once it has received a pulse start signal the frequency

. To stop at precisely the same point, regardless

and

Speed-compensated stop

[1]. After each precise stop the number of pulses

[2]. The number of pulses counted during

NB!

Only active for speed-compensated stop.

not be used together with the

can be combined with

100000 pulses

10 ms

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

4.6 Parameter Group 4-** Special Functions

400 Brake function

Value:

Off (off) [0]

Resistor brake

(Resistor) [1]

AC brake (AC Brake) [4]

Function:

Resistor brake

sistor connected to terminals 81, 82. A higher intermediate circuit voltage

is permitted during braking (generated operation) when a brake resistor

is connected.

AC brake

resistors. Please note that

brake

Description of choice:

Select

144

405 Reset function

Value:

Manual reset (manual reset) [0]

Automatic reset x 1

(AUTOMATIC x 1) [1]

Automatic reset x 3

(AUTOMATIC x 3) [3]

Automatic reset x 10

(AUTOMATIC x 10) [10]

Reset at power-up

(RESET AT POWER UP) [11]

Function:

This parameter makes it possible to select whether reset and restart after

a trip are to be manual or whether the adjustable frequency drive is to

be reset and restarted automatically. Furthermore, it is possible to select

the number of times a restart is to be attempted. The time between each

attempt is set in parameter 406

Description of choice:

Manual reset

RESET] key, a digital input or serial communication. If the adjustable fre-

quency drive is to carry out an automatic reset and restart after a trip,

select data value [1], [3] or [10].

Reset at power-up

carry out a reset if there has been a fault in connection with the mains

failure.

[1] is selected if the frequency converter has a brake re-

[4] can be selected to improve braking without using brake

AC brake

[4] is not as effective as

[1].

Resistor brake AC brake

Gain AC brake

[1] if a brake resistor is connected.

[4] if short-term generated loads occur. See parameter

to set the brake.

NB!

A change of selection will not become active until the

mains voltage has been disconnected and reconnec-

ted.

Automatic restart time

[0] is selected, reset is to be carried out via the [STOP/

[11] is selected, the adjustable frequency drive will

Resistor

406 Automatic restart time

Value:

0 - 10 sec.

Function:

This parameter allows setting of the time from tripping until the automatic

reset function begins. It is assumed that automatic reset has been se-

lected in parameter 405

Description of choice:

Set the required time.

409

Value:

0 - 60 sec. (61=OFF)

Function:

When the adjustable frequency drive registers that the output current has

reached the current limit I

there for the preset time, it is disconnected. Can be used to protect the

application, like the ETR will protect the motor if selected.

Description of choice:

Select how long the adjustable frequency drive should maintain the out-

put current at the current limit I

eter 409

will not take place.

411 Switching frequency

Value:

3000 - 14000 Hz

Function:

The set value determines the switching frequency of the inverter. If the

switching frequency is changed, this may help to minimise possible

acoustic noise from the motor.

Description of choice:

When the motor is running, the switching frequency is adjusted in pa-

rameter 411

at which the motor is as low-noise as possible.

413 Overmodulation function

Value:

Off (off) [0]

The motor may start without warning.

Reset function

Trip delay overcurrent, I

(parameter 221

LIM

Trip delay overcurrent, I

NB!

The output frequency of the frequency converter can

never assume a value higher than 1/10 of the switch-

ing frequency.

Switching frequency

NB!

The switching frequency is reduced automatically as a

function of the load. See

Switching Frequency

LIM

Current limit

before it disconnects. At OFF param-

LIM

is not working, i.e. disconnection

LIM

until the frequency has been obtained

Temperature-Dependent

under

Special Conditions

5 sec.

OFF

) and remains

4500 Hz

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

On (on) [1]

Function:

This parameter allows connection of the overmodulation function for the

output voltage.

Description of choice:

Off

[0] means that there is no overmodulation of the output voltage,

which means that torque ripple on the motor shaft is avoided. This can

be a good feature, e.g. on grinding machines.

put voltage can be obtained which is greater than the mains voltage (up

to 5 %).

414

Value:

-100,000.000 - par. 415 FB

Function:

Parameter 414

MAX

signal in a process unit proportionally to the signal on the input.

Description of choice:

Set the value to be shown on the display as the minimum feedback signal

value on the selected feedback input (parameters 308/314

puts

415

Value:

MIN

Function:

See description of parameter 414

Description of choice:

Set the value to be shown on the display when the maximum feedback

has been obtained on the selected feedback input (parameter 308/314

Analogue inputs

416 Process units

Value:

No unit (No unit) [0]

% (%) [1]

ppm (ppm) [2]

rpm (rpm) [3]

bar (bar) [4]

Cycles/min (CYCLE/MI) [5]

Pulses/s (PULSE/S) [6]

Units/s (UNITS/S) [7]

Units/min. (UNITS/MI) [8]

Units/h (Units/h) [9]

Minimum feedback, FB

MAX

Minimum feedback, FB

are used to scale the display text to make it show the feedback

Maximum feedback, FB

- 100,000.000

Minimum feedback, FB

MIN

[1] means that an out-

MIN

and 415

Maximum feedback,

MAX

Analogue in-

1500.000

MIN

0.000

°C (°C) [10]

Pa (pa) [11]

l/s (l/s) [12]

/s (m3/s) [13]

l/min. (l/m) [14]

/min. (m3/min) [15]

l/h (l/h) [16]

/h (m3/h) [17]

Kg/s (kg/s) [18]

Kg/min. (kg/min) [19]

Kg/hour (kg/h) [20]

Tons/min. (T/min) [21]

Tons/hour (T/h) [22]

Metres (m) [23]

Nm (nm) [24]

m/s (m/s) [25]

m/min. (m/min) [26]

°F (°F) [27]

In wg (in wg) [28]

gal/s (gal/s) [29]

/s (ft3/s) [30]

Gal/min. (gal/min) [31]

/min. (Ft3/min) [32]

Gal/h (gal/h) [33]

/h (Ft3/h) [34]

Lb/s (lb/s) [35]

Lb/min. (lb/min) [36]

Lb/hour (lb/h) [37]

Lb ft (lb ft) [38]

Ft/s (ft/s) [39]

Ft/min. (ft/min) [40]

Psi (Psi) [41]

Function:

Select among different units to be shown on the display. The unit is read

out if an LCP control unit can be connected, and if

Feedback [unit]

Display read-out

also as a unit for Minimum/Maximum reference and Minimum/Maximum

feedback.

Description of choice:

Select the required unit for the reference/feedback signal.

[3] has been selected in one of parameters 009-012

, and in Display mode. The unit is used in

Reference [unit]

Closed loop

[2]

4.6.1 FCD 300 Regulators

The FCD 300 has two integrated PID regulators, one to regulate speed

and one to regulate processes.

Speed regulation and process regulation require a feedback signal back

to an input. There are a number of settings for both PID regulators that

are made in the same parameters, but selection of regulator type will

affect the selections that have to be made in the shared parameters.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

In parameter 100

Configuration

Speed regulation, closed loop

it is possible to select regulator type,

[1] or

Process regulation, closed loop

[3].

VLT® Decentral FCD 300 Design Guide 4 Programming

Speed regulation

This PID regulation is optimised for use in applications in which there is

a need to maintain a particular motor speed. The parameters that are

specific for the speed regulator are parameter 417 to parameter 421.

Process regulation

The PID regulator maintains a constant process mode (pressure, tem-

perature, flow, etc.) and adjusts the motor speed on the basis of the

reference/setpoint and feedback signal.

A transmitter provides the PID regulator with a feedback signal from the

process as an expression of the process's actual mode. The feedback

signal varies as the process load varies.

This means that there is a variance between the reference/setpoint and

the actual process mode. This variance is compensated by the PID reg-

4.6.2 PID Functions

Unit of reference/feedback

Speed regulation, closed loop

When

figuration

the unit of reference/feedback is always rpm.

When

Process regulation, closed loop

figuration

the unit is defined in parameter 416

Feedback

A feedback range must be preset for both regulators. At the same time

this feedback range limits the potential reference range so that if the sum

of all references lies outside the feedback range, the reference will be

limited to lie within the feedback range.

The feedback signal must be connected to a terminal on the frequency

converter. If feedback is selected on two terminals simultaneously, the

two signals will be added together.

Use the overview below to determine which terminal is to be used and

which parameters are to be programmed.

Feedback type Pulse 29, 33 305, 307, 327, 328 Voltage 53 308, 309, 310 Current 60 314, 315, 316

A correction can be made for loss of voltage in long signal cables when

a transmitter with a voltage output is used. This is done in parameter

group 300

Parameters 414/415

to a value in the process unit corresponding to the minimum and maxi-

mum scaling values for signals that are connected to the terminal.

Reference

In parameter 205

maximum reference that scales the sum of all references, i.e. the result-

ing reference.

The minimum reference in parameter 204 is an expression of the mini-

mum value that the resulting reference can assume.

Min./Max scaling

Minimum/Maximum feedback

Maximum reference, Ref

is selected in parameter 100

Process units.

Terminal Parameters

must also be preset

it is possible to preset a

MAX

Con-

ulator by means of the output frequency being regulated up or down in

relation to the variance between the reference/setpoint and the feedback

signal.

The integrated PID regulator in the frequency converter has been opti-

mised for use in process applications. This means that there are a number

of special functions available in the frequency converter.

Previously it was necessary to obtain a system to handle these special

functions by installing extra I/O modules and programming the system.

With the frequency converter the need to install extra modules can be

avoided. The parameters that are specific to the Process Regulator are

parameter 437 to parameter 444.

All references will be added together and the sum will be the reference

against which regulation will take place. It is possible to limit the refer-

ence range to a range that is smaller than the feedback range. This can

be an advantage if you want to avoid an unintentional change to an ex-

ternal reference making the sum of the references move too far away

from the optimal reference. The reference range cannot exceed the feed-

back range.

If preset references are desired, they are preset in parameters 215 to 218

Preset reference References

If a current signal is used as the feedback signal, it will only be possible

to use voltage as an analogue reference. Use the overview below to de-

termine which terminal is to be used and which parameters are to be

programmed.

Reference type Pulse 29, 33 305, 307, 327, 328 Voltage 53 308, 309, 310 Current 60 314, 315, 316 Preset references Bus reference 68+69

Note that the bus reference can only be preset via serial communication.

Differentiator gain limit

If very rapid variations occur in an application in either the reference sig-

nal or the feedback signal, the deviation between the reference/setpoint

and the process's actual mode will change quickly. Thedifferentiator can

then become too dominant. This is because it is reacting to the deviation

between the reference and the process's actual mode, and the quicker

the variance changes the more powerful the differentiator's frequency

contribution becomes. The differentiator's frequency contribution can

therefore be limited in such a way that both a reasonable differentiation

. See description

NB!

It is best to preset terminals that are not being used

No function

Reference Function

Terminal Parameters

215-218

[0].

and

Handling of

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

time for slow changes and an appropriate frequency contribution for quick

changes can be preset. This is done using the speed regulation in pa-

rameter 420

parameter 443

Lowpass filter

If there is a lot of noise in the feedback signal, these can be dampened

using an integratedlowpass filter. A suitable lowpass filter time constant

is preset.

If the lowpass filter is preset to 0.1 s, the cut-off frequency will be 10

RAD/sec, corresponding to (10 / 2 x ) = 1.6 Hz. This will mean that all

currents/voltages that vary by more than 1.6 oscillations per second will

be dampened. In other words, there will only be regulation on the basis

of a feedback signal that varies by a frequency of less than 1.6 Hz. The

appropriate time constant is selected in Speed Regulation in parameter

421

444

Inverse regulation

Normal regulation means that the motor speed is increased when the

reference/setpoint is greater than the feedback signal. If it is necessary

to run inverse regulation, in which the speed is reduced when the refer-

Speed PID Differentiator gain limit

Process PID Differentiator gain limit

Speed PID lowpass filter time Process PID lowpass filter time

and Process regulation in

and in Process Regulation in parameter

ence/setpoint is greater than the feedback signal, parameter 437

normal/inverted control

Anti Windup

In the factory the process regulator is preset with an active anti windup

function. This function means that when either a frequency limit, a cur-

rent limit or a voltage limit is reached, the integrator is initialised at a

frequency corresponding to the present output frequency. This is a means

of avoiding the integration of a variance between the reference and the

process's actual mode that cannot be deregulated by means of a change

of speed. This function can be deselected in parameter 438

anti windup

Starting conditions

In some applications the optimal setting of the process regulator will

mean that a relatively long period of time will pass before the required

process condition is achieved. In these applications it can be a good idea

to define an output frequency to which the frequency converter must run

the motor before the process regulator is activated. This is done by pro-

gramming a start frequency in parameter 439

must be programmed at

Process PID start frequen-

Inverted

PID

Process PID

4.6.3 Handling of Feedback

Feedback handling is depicted in this flowchart.

The flowchart shows which parameters can affect the handling of feedback and how. A choice can be made between voltage, current and pulse feedback

signals.

NB!

Parameters 417-421 are only used, if in parameter 100

Configuration closed loop

417 Speed PID proportional gain

Value:

0.000 (OFF) - 1.000

Function:

Proportional gain indicates how many times the fault (deviation between

the feedback signal and the setpoint) is to be amplified.

the selection made is

[1].

Speed regulation,

0.010

Description of choice:

Quick regulation is obtained at high amplification, but if the amplification

is too high, the process may become unstable in the case of overshooting.

418 Speed PID integral time

Value:

20.00 - 999.99 ms (1000 = OFF)

Function:

The integral time determines how long the PID regulator takes to correct

the error. The greater the error, the quicker the integrator frequency

contribution will increase. The integral time is the time the integrator

needs to achieve the same change as the proportional amplification.

100 ms

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

Description of choice:

Quick regulation is obtained through a short integral time. However, if

this time is too short, it can make the process unstable. If the integral

time is long, major deviations from the required reference may occur,

since the process regulator will take long to regulate if an error has oc-

curred.

419 Speed PID differential time

Value:

0.00 (OFF) - 200.00 ms

Function:

The differentiator does not react to a constant error. It only makes a

contribution when the error changes. The quicker the error changes, the

stronger the gain from the differentiator will be. The contribution is pro-

portional to the speed at which errors change.

Description of choice:

Quick control is obtained by a long differential time. However, if this time

is too long, it can make the process unstable. When the differential time

is 0 ms, the D-function is not active.

420 Speed PID D- gain limit

Value:

5.0 - 50.0

Function:

It is possible to set a limit for the gain provided by the differentiator. Since

the D-gain increases at higher frequencies, limiting the gain may be use-

ful. This enables obtaining a pure D-gain at low frequencies and a

constant D-gain at higher frequencies.

Description of choice:

Select the required gain limit.

421 Speed PID lowpass filter time

Value:

20 - 500 ms

Function:

Noise in the feedback signal is dampened by a first order lowpass filter

to reduce the noise's impact on the regulation. This might be an advant-

age, e.g. if there is a great amount of noise on the signal. See drawing.

20.00 ms

5.0

100 ms

Description of choice:

If a time constant (t) of 100 ms is programmed, the cut-off frequency for

the lowpass filter will be 1/0.1 = 10 RAD/sec., corresponding to (10 / 2

x ) = 1.6 Hz. The PID regulator will then only regulate a feedback signal

that varies with a frequency of less than 1.6 Hz. If the feedback signal

varies by a higher frequency than 1.6 Hz, it will be dampened by the

lowpass filter.

423 U1 voltage

Value:

0.0 - 999.0 V

Function:

Parameters 423-428 are used when in parameter 101

teristic

a selection has been made of

is possible to determine a U/f characteristic on the basis of four definable

voltages and three frequencies. The voltage at 0 Hz is set in parameter

Start voltage

133

Description of choice:

Set the output voltage (U1) that is to match the first output frequency

(F1), parameter 424

424 F1 frequency

Value:

0.0 - par. 426

Function:

See parameter 423

Description of choice:

Set the output frequency (F1) that is to match the first output voltage

(U1), parameter 423

F1 frequency

F2 frequency

U1 voltage

Special motor characteristic

Par. 104

par. 103

Torque charac-

[8]. It

Motor frequency

425 U2 voltage

Value:

0.0 - 999.0 V

Function:

See parameter 423

Description of choice:

Set the output voltage (U2) that is to match the second output frequency

(F2), parameter 426

426 F2 frequency

Value:

Par. 424

Function:

See parameter 423

MG.90.S1.02 - VLT® is a registered Danfoss trademark

U1 voltage

F2 frequency.

F1 frequency

U1 voltage

- par. 428

F3 frequency

par. 103

Par. 104

frequency

Motor

4 Programming VLT® Decentral FCD 300 Design Guide

Description of choice:

Set the output frequency (F2) that is to match the second output voltage

(U2), parameter 425

427 U3 voltage

Value:

0.0 - 999.0 V

Function:

See parameter 423

Description of choice:

Set the output voltage (U3) that is to match the third output frequency

(F3), parameter 428

428 F3 frequency

Value:

Par. 426

Function:

See parameter 423

Description of choice:

Set the output frequency (F3) that is to match the third output voltage

(U3), parameter 427

U2 voltage

U1 voltage

F3 frequency

F2 frequency

U1 voltage

U3 voltage

NB!

Parameters 437-444 are only used if in parameter 100

Configuration regulation, closed loop.

437 Process PID normal/inverse control

Value:

Normal (normal) [0]

Inverse (inverse) [1]

Function:

It is possible to choose whether the process regulator is to increase/re-

duce the output frequency if there is a deviation between the reference/

setpoint and the actual process mode.

Description of choice:

If the adjustable frequency drive is to reduce the output frequency in case

the feedback signal increases, select

quency drive is to increase the output frequency in case the feedback

signal increases, select

438 Proces PID anti windup

Value:

Not active (DISABLE) [0]

Active (ENABLE) [1]

Function:

It is possible to select whether the process regulator is to continue reg-

ulating on a deviation even if it is not possible to increase/reduce the

output frequency.

Description of choice:

The factory setting is

initialised in relation to the actual output frequency if either the current

limit, the voltage limit or the max./min. frequency has been reached. The

process regulator will not engage again until either the error is zero or its

sign has changed. Select

Enable

- 1000 Hz

a selection has been made of

Inverse

[1].

[1], which means that the integration link is

Disable

[0] if the integrator is to continue inte-

Par. 104

[3].

Normal

[0].If the adjustable fre-

Motor frequency

par. 103

Process

grating on the deviation, even if it is not possible to remove the fault by

such control.

NB!

Disable

[0] is selected, it will mean that when the

deviation changes its sign, the integrator will first have

to integrate down from the level obtained as a result

of the former error, before any change in output fre-

quency occurs.

439 Process PID start frequency

Value:

- f

(parameter

MIN

MAX

Par. 201

201/202)

Function:

When the start signal comes, the adjustable frequency drive will react in

the form of

grammed start frequency is reached. This makes it possible to set a

frequency that corresponds to the speed at which the process normally

runs, which will enable the required process conditions to be reached

sooner.

Set the required start frequency.

The proportional gain indicates the number of times the deviation be-

tween the setpoint and the feedback signal is to be applied.

Quick regulation is obtained by a high gain, but if the gain is too high,

the process may become unstable due to overshoot.

The integrator provides an increasing gain at a constant error between

the reference/setpoint and the feedback signal. The greater the error, the

quicker the integrator frequency contribution will increase.The integral

time is the time needed by the integrator to make the same change as

the proportional gain.

Quick regulation is obtained at a short integral time. However, this time

may become too short, which can make the process unstable due to

overswing. If the integral time is long, major deviations from the required

Open loop

Description of choice:

440 Proces PID proportioanl gain

Value:

0.0 - 10.00

Function:

Description of choice:

441 Process PID integration time

Value:

0.01 - 9999.99 (OFF)

Function:

Description of choice:

and will not change to

NB!

If the adjustable frequency drive is running a the cur-

rent limit before the required start frequency is ob-

tained, the process regulator will not be activated. For

the regulator to be activated anyway, the start fre-

quency must be lower to the required output frequen-

cy. This can be done during operation.

Output frequency, low limit, f

Closed loop

until the pro-

MIN

0.01

OFF

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

setpoint may occur, since the process regulator will take a long time to

regulate in relation to a given error.

442 Process PID differentiation time

Value:

0.00 (OFF) - 10.00 sec.

Function:

The differentiator does not react to a constant error. It only makes a gain

when an error changes. The quicker the deviation changes, the stronger

the gain from the differentiator. The gain is proportional to the speed at

which the deviation changes.

Description of choice:

Quick regulation is obtained with a long differentiation time. However,

this time may become too long, which can make the process unstable

due to overswing.

443 Process PID diff. gain limit

Value:

5.0 - 50.0

Function:

It is possible to set a limit for the differentiator gain. The differentiator

gain will increase if there are fast changes, which is why it can be bene-

ficial to limit this gain. Thereby a pure differentiator gain is obtained at

slow changes and a constant differentiator gain where quick changes to

the deviation occur.

Description of choice:

Select a differentiator gain limit as required.

444 Process PID lowpass filter time

Value:

0.02 - 10.00

Function:

Noise in the feedback signal is dampened by a first order lowpass filter

to reduce the noise's impact on the process regulation. This can be an

advantage e.g. if there is a lot of noise on the signal.

Description of choice:

Select the required time constant (t). If a time constant (t) of 0.1 s is

programmed, the cut-off frequency for the lowpass filter will be 1/0.1 =

10 RAD/sec., corresponding to (10 / 2 x ) = 1.6 Hz. The process regu-

lator will thus only regulate a feedback signal that varies by a frequency

lower than 1.6 Hz. If the feedback signal varies by a higher frequency

than 1.6 Hz, it will be dampened by the lowpass filter.

445 Flying start

Value:

Off (DISABLE) [0]

OK - same direction

(OK-same direction) [1]

OK - both directions

(OK-both directions) [2]

DC brake and start

(DC-BRAKE BEF. START) [3]

Function:

This function makes it possible to 'catch' a rotating motor shaft, which is

no longer controlled by the adjustable frequency drive, e.g. because of a

mains drop-out. The function is activated each time a start command is

enabled. For the adjustable frequency drive to be able to 'catch' the ro-

0.00 sec.

5.0

0.02

tating motor shaft, the motor speed must be lower than the frequency

that corresponds to the frequency in parameter 202

high limit, f

Description of choice:

Select

the same direction when cutting in.

selected if in parameter 200

Clockwise only

Select

rections when cutting in.

Select

able to brake the motor using the DC brake first, followed by start. It is

assumed that parameters 126-127/132

of higher 'Windmilling' (rotating motor) effects, the adjustable frequency

drive is not able to 'catch' a rotating motor without selecting

and start

Limitations:

- Too low inertia will lead to load acceleration, which can be dan-

- If the load is driven, e.g. by 'Windmilling' (rotating motor) ef-

- Flying start does not work at lower values than 250 rpm.

451 Speed PID feedforward factor

Value:

0 - 500 %

Function:

This parameter is only active if in parameter 100

lection made is

larger or smaller part of the reference signal outside the PID controller in

such a way that the PID controller only has an influence on part of the

control signal. Any change to the set point will thus have a direct effect

on the motor speed. The FF factor provides high dynamism when chang-

ing the set point and less overswing.

Description of choice:

The required % value can be selected in the interval f

over 100 % are used if the set point variations are only small.

452 Controller range

Value:

0 - 200 %

Function:

This parameter is only active if in parameter 100

lection made is

The controller range (bandwidth) limits the output from the PID controller

as a % of motor frequency f

Description of choice:

The required % value can be selected for motor frequency f

controller range is reduced the speed variations will be less during initial

tuning.

MAX

Disable

[0] if this function is not required.

OK - same direction

[1] if the motor shaft is only able to rotate in

OK - same direction

Output frequency range

OK - both directions

DC brake and start

[2] if the motor is able to rotate in both di-

[3] if the adjustable frequency drive is to be

DC brake

gerous or prevent correct catching of a rotating motor. Use the

DC brake instead.

fects, the unit may cut out because of overvoltage.

Speed regulation, closed loop

M,N

Output frequency,

[1] should be

a selection has been

are enabled. In the case

DC brake

100 %

Configuration

. The FF function sends a

MIN

Configuration

- f

MAX

M,N

the se-

. Values

10 %

the se-

. If the

MG.90.S1.02 - VLT® is a registered Danfoss trademark

4 Programming VLT® Decentral FCD 300 Design Guide

455 Frequency range monitor

Value:

Disable [0]

Enable [1]

Function:

his parameter is used if warning 35

turned off in the display in process control closed loop. This parameter

does not affect the extended status word.

Description of choice:

Select

Enable

[1] to enable the readout in the display if warning 35

of frequency range

the display if warning 35

456 Brake Voltage Reduce

Value:

0 - 200 V

occurs. Select

ut of frequency range

Out of frequency range

Disable

[0] to disable the readout in

occurs.

must be

Out

4.7 Serial Communication

4.7.1 Protocols

All frequency converters are equipped with an RS 485 port as standard,

which makes it possible to choose between two protocols. The two pro-

tocols that can be selected in parameter 512

• Profidrive protocol

• Danfoss FC protocol

To select Danfoss FC protocol, parameter 512

FC protocol

[1].

Telegram Profile

, are:

is set to

Function:

The user sets the voltage by which the level for resistor braking is re-

duced. It is only active when resistor in parameter 400 is selected.

Description of choice:

The greater the reduction value, the faster the reaction to a generator

overload. Should only be used if there are problems with overvoltage in

the intermediate circuit.

NB!

A change of selection will not become active until the

mains voltage has been disconnected and reconnec-

ted.

4.7.2 Telegram Traffic

Control and response telegrams

Telegram traffic in a master-slave SYSTEM is controlled by the master. A

maximum of 31 slaves can be connected to a master, unless repeaters

are used. If repeaters are used, a maximum of 126 slaves can be con-

nected to a master.

The master constantly sends telegrams addressed to the slaves and waits

for response telegrams from them. The slave's response time is a maxi-

mum of 50 ms.

Only a slave that has received an error-free telegram, addressed to that

slave can send a response telegram.

Broadcast

A master can send the same telegram simultaneously to all slaves con-

nected to the bus. During this broadcast communication the slave does

not send any response telegrams back to the master as to whether the

telegram has been correctly received. Broadcast communication is set up

in address format (ADR), see

Telegram structure

Content of a character (byte)

Each character transferred begins with a start bit. Then 8 data bits are

transferred, corresponding to a byte. Each character is secured via a par-

ity bit, which is set at "1" when it reaches parity (i.e. when there is an

equal number of 1's in the 8 data bits and the parity bit in total). A char-

acter is completed by a stop bit, thus consisting of 11 bits in all.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

VLT® Decentral FCD 300 Design Guide 4 Programming

4.7.3 Telegram Structure

Each telegram begins with a start character (STX) = 02 Hex, followed by

a byte that denotes the length of the telegram (LGE) and a byte that

denotes the address of the frequency converter (ADR). Then follows a

number of data bytes (variable, depending on the type of telegram). The

telegram is completed by a data control byte (BCC).

Telegram timing

The communication speed between a master and a slave depends on the

baud rate. The frequency converter's baud rate must be the same as the

Baudrate

master's baud rate and be selected in parameter 501

After a response telegram from the slave, there must be a pause of at

least 2 characters (22 bits) before the master can send a new telegram.

At a baud rate of 9600 baud there must be a pause of at least 2.3 ms.

When the master has completed the telegram, the slave's response time

back to the master will be a maximum of 20 ms, and there will be pause

of at least 2 characters.

Telegram length (LGE)

The telegram length is the number of data bytes plus the address byte

ADR plus the data control byte BCC.

The length of telegrams with 4 data bytes is:

LGE = 4 + 1 + 1 = 6 bytes

The length of telegrams with 12 data bytes is:

LGE = 12 + 1 + 1 = 14 bytes

The length of telegrams containing texts is 10+n bytes. 10 represents the

fixed characters, while the 'n' is variable (depending on the length of the

text).

Frequency converter address (ADR)

Two different address formats are used, with the frequency converter's

address range being either 1-31 or 1-126.

1. Address format 1-31

The byte for address range 1-31 has the following profile:

Bit 7 = 0 (address format 1-31 active)

Bit 6 is not used

Bit 5 = 1: Broadcast, address bits (0-4) are not used

Bit 5 = 0: No Broadcast

Bit 0-4 = Frequency converter address 1-31

Pause time, min: 2 characters

Response time, min: 2 characters

Response time, max: 20 ms

The time between the individual characters in a telegram may not exceed

2 characters and the telegram must be completed within 1.5 x nominal

telegram time. At a baud rate of 9600 baud and a telegram length of 16

bytes the telegram will be completed after 27.5 msec.

2. Address format 1-126

The byte for address range 1 - 126 has the following profile:

Bit 7 = 1 (address format 1-126 active)

Bit 0-6 = Frequency converter address 1-126

Bit 0-6 = 0 Broadcast

The slave sends the address byte back unchanged in the response tele-

gram to the master.

MG.90.S1.02 - VLT® is a registered Danfoss trademark

Danfoss VLT FCD 300 Series Design Manual

Specifications and Main Features

Frequently Asked Questions

User Manual