Danfoss VT2800 Series Design Manual

■ Contents

VLT®2800 Series

Introduction to VLT 2800

Software version ...................................................................................................... 4

High voltage warning ............................................................................................... 5

These rules concern your safety ............................................................................... 5

Warning against unintended start ............................................................................. 5

Technology .............................................................................................................. 6

CE labelling ............................................................................................................. 8

Modbus RTU ......................................................................................................... 11

Motor coils ............................................................................................................. 12

EMC filter for long motor cables ............................................................................ 16

Ordering numbers for VLT 2800 200-240 V .................................................. ........ 17

Ordering numbers for VLT 2800 380-480V ............................................................ 19

Order form ............................................................................................................. 21

PC software ........................................................................................................... 22

PC Software tools .................................................................................................. 22

Accessories for the VLT 2800 ........................................................................ ........ 23

Control unit ............................................................................................................ 30

Manual initialisation ................................................................................................. 30

Hand Auto ............................................................................................................. 31

Automatic motor tuning ......................................................................................... 32

The LCP 2 Control unit, option .............................................................................. 33

Parameter selection ............................................................................................... 36

............................................................................... 4

Installation ......................................................................................................... 38

Mechanical dimensions .......................................................................................... 38

Mechanical installation ........................................................................................... 42

General information about electrical installation ...................................................... 43

EMC-correct electrical installation .......................................................................... 44

Earthing of screened/armoured control cables ....................................................... 46

Diagram ................................................................................................................. 47

Electrical installation ............................................................................................... 48

Safety clamp .......................................................................................................... 50

Pre-fuses ....................................................................................................... ......... 50

Mains connection ................................................................................................... 50

Motor connection ................................................................................................... 50

RFI switch .............................................................................................................. 51

Direction of motor rotation ..................................................................................... 51

Parallel connection of motors ................................................................................. 51

Motor cables ................................................................................................. ......... 52

Motor thermal protection ....................................................................................... 52

Brake connection ................................................................................................... 52

Earth connection .................................................................................................... 52

Load sharing .......................................................................................................... 53

Tightening Torque, Power Terminals ...................................................................... 53

Control of mechanical brake .................................................................................. 53

Access to control terminals .................................................................................... 53

Electrical installation, control cables ....................................................................... 54

Tightening torques, control cables .......................................................................... 55

Electrical installation, control terminals ................................................................... 55

Relay connection ................................................................................................... 55

VLT Software Dialog .............................................................................................. 55

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Connection examples ............................................................................................ 56

Use of internal PID-controller - closed loop process control .................................. 58

Programming .............................. ...................................................................... 60

Operation & Display ............................................................................................... 60

Setup configuration ................................................................................................ 60

Load and Motor ..................................................................................................... 68

DC Braking ............................................................................................................ 73

References & Limits ............................................................................................... 78

Handling of references ........................................................................................... 78

Reference function ................................................................................................. 82

Inputs and outputs ................................................................................................. 87

Special functions .................................................................................................... 97

PID functions ....................................................................................................... 100

Handling of feedback ........................................................................................... 101

Serial communication for VLT 2800 ..................................................................... 108

Control Word according to FC protocol ............................................................... 112

Status Word according to FC Profile .................................................................... 114

Control word according to Fieldbus Profile .......................................................... 115

Status word according to Profidrive protocol ....................................................... 116

Serial communication ........................ ................................................................... 119

Technical functions .............................................................................................. 127

All about VLT 2800 ....................................................................................... 131

Special conditions ................................................................................................ 131

Galvanic Isolation (PELV) ...................................................................................... 131

Earth leakage current and RCD relays ................................................................. 131

Extreme operating conditions ............................................................................... 131

dU/dt on motor .................................................................................................... 132

Switching on the input ......................................................................................... 132

Acoustic noise ...................................................................................................... 132

Temperature-dependent switch frequency ........................................................... 133

Derating for air pressure ...................................................................................... 133

Derating for running at low speed ........................................................................ 133

Derating for long motor cables ............................................................................. 133

Derating for high switching frequency - VLT 2800 ................................................ 133

Vibration and shock ............................................................................................. 134

Air humidity .......................................................................................................... 134

UL Standard ........................................................................................................ 134

Efficiency .............................................................................................................. 134

Mains supply interference/harmonics .............................................................. ..... 134

Power factor ........................................................................................................ 135

Generic EMC standards/product standards ......................................................... 136

EMC emission .................................. .................................................................... 136

EMC Immunity ...................................................................................................... 138

Harmonic Current Emission .................................................................................. 139

Aggressive environments ...................................................................................... 139

Display readout .................................................................................................... 140

Warnings/alarm messages ................................................................................... 140

Warning words, extended status words and Alarmwords ................................... 145

General technical data ......................................................................................... 146

Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V .............................. 150

Technical data, mains supply 3 x 380 - 480 V ..................................................... 151

Available literature ................................................................................................. 152

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Supplied with the unit ........................................................................................... 152

Index .................................................................................................................... 160

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

VLT 2800 Series

Design Guide

Software version: 2.8x

This design guide can be used for all VLT 2800 Series frequency converters with software version 2.8x. The software version number can be seen from parameter 640; Software version no.

195NA021.19

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.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■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 com ply with the instructions in this manual as well as local and national rules and safety regulations.

■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 motor and mains plugs.

2. The [STOP/RESET] key on the control panel of

the frequency converter the equipment from mains and is thus n 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 Motor thermal protection to data value ETR trip or data value ETR warning.For the North American market: The ETR functions provide overload protection of the motor, class 20, in accordance with N EC.

6. Do n

7. Note that the frequency converter has more voltage

ot remove the plugs for the motor - and mains supply while the frequency converter is connected to mains. Check that the mains supply has been disconnected and that the prescribed time has passed before removing motor and mains plugs.

inputs than L1, L2 and L3 when the DC bus terminals are used. Check that all voltage inputs are disconnected and that the prescribed time has passed before repair work is commenced.

does not disconnect

ensure that no unintended start occurs, stop functions are not sufficient.

2. While parameters are being changed, the motor may start. Consequently, t [STOP/RESET] 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 f ault in the supply mains or the motor connection ceases.

■Use on isolated mains

See section RFI Switch regarding use on isolated mains.

It is important to follow the recommendations regarding installation on IT-mains, since sufficient protection of the complete installation must be observed. Not taking care using relevant monitoring devices for IT-mains may result in damage.

he stop key

these

2800

Introduction to VLT

■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

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Technology

■Control principle

A frequency converter rectifies AC voltage from the mains supply into DC voltage, following which it changes this v oltage 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

1 x 220 - 240 V AC, 50 / 60 Hz 3 x 200 - 240 V AC, 50 / 60 Hz 3 x 380 - 480 V AC, 50 / 60 Hz

. Rectifier

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

VLT®2800 Series

■VLT 2800 control principle

A frequency converter is an electronic unit which is able to infinitely vari ab ly 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 plan ts. The frequency converter 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 do 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 o f the motor.

■Programmable inputs and outputs in four Setups

In the frequency converter 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 p rogram the required functions on the control panel or via serial c ommunication.

. 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 condenser

5 Evens out the intermediate circuit voltage.

. Inverter Converts DC voltage into a variable AC voltage withavariablefrequency.

. Motor voltage

7 Variable AC voltage d e pe nding 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.

■Mains protector

The frequency converter is protected against the transients that occur on the mains sometimes, e.g. if coupling with a phase compensation system, or if fuses blow when lightning strikes.

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

As all 400 V units in the VLT 2800 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.

■Frequency converter protections

The current measurement in the intermediate circuit constitutes perfect protection of the frequency in case there is a short-circuit or an earth fault on the motor connection. Constant monitoring of the intermediate circuit current enables 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 c ase of a phase drop-out. In this way, the inverter and the condensers in the intermediate

MG.28.E9.02 - VLT is a registered Danfoss trademark

circuit are not overloaded, which would dramatically reduce the service life of the frequency converter. The frequency converter offers temperature protection as standard. If there is a thermal overload, this function cuts out the inverter.

■Reliable galvanic isolation

In the frequency converter 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, so that they can be connected to the mains potential. For further information see the section entitled Galvanic Isolation (PELV).

■Advanced motor protection

The frequency converter 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.

VLT®2800 Series

2800

Introduction to VLT

See also the section entitled Galvanic Isolation (PELV) for further information.

NB!:

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

MG.28.E9.02 - VLT is a registered Danfoss trademark

■CE labelling

What is CE labelling?

The p urp ose 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 direct ive, 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’sdeclaration.

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

Frequency converters must be CE labe lled 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 compat ibility means that the mutual i nterference 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 w hich our different products comply with. We offe r the filters that can be seen from the specifications and provide other types of assistance to ensure the optimum EMC result.

VLT®2800 Series

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 EM C properties of the appliance, system or installation rests with the installer.

MG.28.E9.02 - VLT is a registered Danfoss trademark

This section makes it easier for you to specify and order a VLT 2800.

Choice of frequency converter

The frequency converter must be chosen on the basis of the present motor current at maximum

loading of the unit. The frequency converter’s rated

output current I

must be equal to or greater than

INV.

the required motor current.

VLT®2800 Series

Mains voltage

VLT2800is ranges: 200-240 V and 380-480 V.

Select whether the frequency converter is connected to a mains voltage of:

1 x 220 - 240 Volt mains voltage

available for two mains voltage

Typical sh a ft output

INV.

Max. constant ou tput

- 1 x 220 - 240 V single-phase AC voltage

- 3 x 200 - 240

- 3 x 380 - 480 V three-phase AC voltage

V three-phase A C voltage

Max. constant output power

current I

INV.

at 230 V S Type [kW] [HP] [A] [kVA] 2803 0.37 0.5 2.2 0.9 2805 0.55 0.75 3.2 1.3 2807 0.75 1.0 4.2 1.7 2811 1.1 1.5 6.0 2.4 2815 1.5 2.0 6.8 2.7

3 x 200 - 240 Volt mains voltage

Typical sh a ft output

INV.

Max. constant ou tput

current I

INV.

Max. constant output power

at 230 V S Type [kW] [HP] [A] [kVA] 2803 0.37 0.5 2.2 0.9 2805 0.55 0.75 3.2 1.3 2807 0.75 1.0 4.2 1.7 2811 1.1 1.5 6.0 2.4 2815 1.5 2.0 6.8 2.7 2822 2.2 3.0 9.6 3.8 2840 3.7 5.0 16.0 6.4

2800

Introduction to VLT

INV.

MG.28.E9.02 - VLT is a registered Danfoss trademark

3 x 380 - 480 Volt mains voltage

VLT®2800 Series

Typical sh a ft output

INV.

Max. constant ou tput

current I

INV.

Max. constant output power

at 400 V S Type [kW] [HP] [A] [kVA] 2805 0.55 0.75 1.7 1.1 2807 0.75 1.0 2.1 1.7 2811 1.1 1.5 3.0 2.0 2815 1.5 2.0 3.7 2.6 2822 2.2 3.0 5.2 3.6 2830 3.0 4.0 7.0 4.8 2840 4.0 5.0 9.1 6.3 2855 5.5 7.5 12.0 8.3 2875 7.5 10.0 16.0 11.1 2880 11 15 24 16.6 2881 15 20 32 22.2 2882 18.5 25 37.5 26.0

■Enclosure

All VLT 2800 units are supplied with IP 20 enclosure as standard. This enclosure level is idea l for panel mounting in areas where a h igh degree of protection is required; at the same time IP 20 enclosures allow side-by-side installation with for extra cooling equipment. IP 20 units can be upgraded with IP 21 / top coverand/orNEMA1byfittingatermin See ordering number for terminal cover under Accessories for VLT 2800 .

out any need

al cover.

■RFI filter

VLT 2800 is available with or without an integral 1A RFI-filter. The integral 1A RFI filter complies with EMC standards EN 55011-1A.

With an integral RFI filter there is compliance with EN 55011-1B with a max. 15-metre screened/armoured motor cable on VLT 2803-2815 1 x 220-240 Volt. VLT 2880-82 with integral 1B filter comply with EMC standard EN 50011 - 1B

INV.

In a ddition, VLT 2880-82 units are supplied with Nema 1 enclosure as standard.

■Brake

VLT 2800 is available with or without an integral brake module. See also the section entitled Brake resistors for ordering a

■Wobble function

The wobble function is used for winding applications in the textile industries. All VLT 2800 frequency converters are suppl standard feature. The frequency converter is able to operate a motor, which turns a grooved drum. During winding, the gro correct position on the bobbin, in a diamond pattern. For further informat ion, see VLT 2800 Wobble Instruction MI

oved drum places the thread in the

50JXYY.

Brake resistor.

ied with a wobble function as a

■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, VLT 2822-2840 3 x 200-240 V and VLT 2805-2882 380-480 V are fitted with coils in their intermediate circuit as standard. This reduces the input current I Please note that 1 x 220-240 V units are not supplied with coils in their intermediate circuit.

■FC protocol

Danfoss frequency converters are able to fulfill many different functions in a monitoring system. The frequency converter can be integrated directly in an overall surveillance system, which will allow detailed process data to be transferred via serial communication.

by typically 40 %.

RMS

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

The protocol standard is based on an RS 485 bus system with a maximum transmission speed of 9600 baud. The following Drive profiles are supported as standard:

- FC Drive, which is a profile adapted to Danfoss.

- Profidrive, which supports the profidrive profile.

See Serial communicat ion for further details of telegram structure and Drive profile.

■Fieldbus option

The increasing information requirements in industry make it nece ssary to collect or visualize many different process data. Important process data help the system technician with the daily monitoring of the system. The large amounts of data involved in m ajor systems make a higher transmission speed than 9600 baud desirable.

Fieldbus option

Profibus

Profibus is a fieldbus system, which can be used for linking automation devices such as sensors and actuators with the controls by means of a two-conductor cable. Profibus DP is a very fast communication protocol, made specially for communication between the automation system and various types of equipment. Profibus is a registered trade mark.

MODBUS is often applied in Gas and Oil appl ications, but also in building, infrastructure, transportation and energy, applicat ions are m aking use of its benefits.

2800

Introduction to VLT

DeviceNet

DeviceNet fieldbus systems can be used for linking automation devices such as sensors and actuators with the controls by means of a four-wire conductor cable. DeviceNet is a medium speed communication protocol, made specially for communication between the automation system and various types of equipment. Units with DeviceN et protocol cannot be controlled by FC protocol and Profidrive protocol.

VLT Software Dialog can be used on the Sub D plug.

■Modbus RTU

MODBUS RTU (Remote Terminal Unit) Protocol is a m essaging structure developed by Modicon in 1979, used to establish master-slave/client-server communication between intelligent devices. MODBUS is used to monitor and program devices; to communicate intelligent devices with sensors and instruments; to monitor field devicesusingPCsandHMIs.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Motor coils

By fitting the motor coil module between the frequency converter and the motor it is possible to use up to 200 metres of unscreened/unarmoured motor cable or 100 metres of screened/armoured motor cable. The motor c oil module has an enclosure of IP 20 and can be installed side-by-side.

NB!:

To have long motor cables and still comply with EN55011-1A, motor coil and EMC filter for long motor cables are needed.

NB!:

To comply with EN55011-1A the EMC filter for long motor cables can only be fitted to a VLT

2800 with integral 1A filter (R1 option).

See also the section EMC Emission.

Technical data for VLT 2805-2875 380-480 V EMC filter for long motor cables Max. cable length (screened/armoured) VLT 2805-2875 380-480 V: 100 m Enclosure IP 20 Max. rated current 192H4719: 3.2 A, 192H4720: 9.0 A, 192H4893: 16 A Input voltage range 3 x 380-480 V ± 10% Mains frequency 50-60 Hz Input Terminals 2,5 mm2(192H4893 4 mm2) Output Flexible cords with sleeves Design Metal housing (suited for foot print and side mounting to VLT

2800) Min. distance above and below filter 100 mm Ambient temperature Ta= 50 °C Dimensions 192H4719 H x W x D (mm)1244 x 75 x 45 Dimensions 192H4720 H x W x D (mm)1313 x 90 x 50 Dimensions 192H4893 H x W x D (mm)1313 x 140 x 50

See ordering numbers for EMC filter for long motor cables in Accessories for V L T 2800

For drawin g and more detailed dimensions, see in Mechanical dimensions

■Control unit

The frequency converter is always supplied with an integral control unit. All displays are in the form of a six-digit LED display capable of showing one item of operating data continuously during normal operation. As a supplement to the display, there are 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 integral control panel.

An LCP 2 control panel to be connected via a plug to the front of the frequency converter is available as an option. The LCP 2 control panel can be installed up to 3 metres away from the frequency converter, e.g. on a front panel, by means of the accompanying mount ing 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 i nformat ion required for quick, efficient parameter Setup of the frequency converter is displayed. As a supplement

to the display, there are 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 2 control panel. See also the section entitled The LCP 2 control unit in the Design Guide.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Ordering numbers for VLT 2800 200-240 V

0,37 kW VLT 2803 1 x 220-240 V / 3 x 200-240 V

RFI Unit Profibus

3MBits/s

- ST - - 195N0001

- SB - - 195N0002

R1 ST - - 195N0003

R1 SB - - 195N0004

-ST - 195N0005

-SB - 195N0006

R1 ST - 195N0007

R1 SB - 195N0008

-ST - 195N0009

-SB - 195N0010

R1 ST - 195N0011

R1 SB - 195N0012

0,55 kW VLT 2805 1 x 220-240 V / 3 x 200-240 V

RFI Unit Profibus

3MBits/s

- ST - - 195N0013

- SB - - 195N0014

R1 ST - - 195N0015

R1 SB - - 195N0016

-ST - 195N0017

-SB - 195N0018

R1 ST - 195N0019

R1 SB - 195N0020

-ST - 195N0021

-SB - 195N0022

R1 ST - 195N0023

R1 SB - 195N0024

0,75 kW VLT 2807 1 x 220-240 V / 3 x 200-240 V

RFI Unit Profibus

3MBits/s

- ST - - 195N0025

- SB - - 195N0026

R1 ST - - 195N0027

R1 SB - - 195N0028

-ST - 195N0029

-SB - 195N0030

R1 ST - 195N0031

R1 SB - 195N0032

-ST - 195N0033

-SB - 195N0034

R1 ST - 195N0035

R1 SB - 195N0036

DeviceNet Ordering no.

1,1 kW VLT 2811 1 x 220-240 V / 3 x 200-240 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBits/s

- ST - - 195N0037

- SB - - 195N0038

R1 ST - - 195N0039

R1 SB - - 195N0040

-ST - 195N0041

-SB - 195N0042

R1 ST - 195N0043

R1 SB - 195N0044

-ST - 195N0045

-SB - 195N0046

R1 ST - 195N0047

R1 SB - 195N0048

1,5 kW VLT 2815 1 x 220-240 V / 3 x 200-240 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBits/s

- ST - - 195N0049

- SB - - 195N0050

R1 ST - - 195N0051

R1 SB - - 195N0052

-ST - 195N0053

-SB - 195N0054

R1 ST - 195N0055

R1 SB - 195N0056

-ST - 195N0057

-SB - 195N0058

R1 ST - 195N0059

R1 SB - 195N0060

2,2 kW V LT 2822 3 x 200-240 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBits/s

- ST - - 195N0061

- SB - - 195N0062

R1 ST - - 195N0063

R1 SB - - 195N0064

-ST - 195N0065

-SB - 195N0066

R1 ST - 195N0067

R1 SB - 195N0068

-ST - 195N0069

-SB - 195N0070

R1 ST - 195N0071

R1 SB - 195N0072

2800

Introduction to VLT

MG.28.E9.02 - VLT is a registered Danfoss trademark

3,7 kW VLT 2840 3 x 200-240 V

RFI Unit Profibus

3MBits/s

- ST - - 195N0073

- SB - - 195N0074

R1 ST - - 195N0075

R1 SB - - 195N0076

-ST - 195N0077

-SB - 195N0078

R1 ST - 195N0079

R1 SB - 195N0080

-ST - 195N0081

-SB - 195N0082

R1 ST - 195N0083

R1 SB - 195N0084

DeviceNet Ordering no.

ST: Standard unit. SB: Standard unit with integral brake. R1: With RFI filter that complies w

ith EN 55011-1A.

VLT®2800 Series

NB!:

For VLT 2803-2815 with an R1 filter it is only possible to c o nnect single-phase mains voltage 1 x 220 - 240 Volt.

1) Also available in 12 MBi

t/s version.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Ordering numbers for VLT 2800 380-480V

0,55kW VLT28053x380-480V

RFI Unit Profibus

3MBit/s

- ST - - 195N1001

- SB - - 195N1002

R1 ST - - 195N1003

R1 SB - - 195N1004

-ST - 195N1005

-SB - 195N1006

R1 ST - 195N1007

R1 SB - 195N1008

-ST - 195N1009

-SB - 195N1010

R1 ST - 195N1011

R1 SB - 195N1012

0,75 kW VLT 2807 3 x 380-480 V

RFI Unit Profibus

3MBit/s

- ST - - 195N1013

- SB - - 195N1014

R1 ST - - 195N1015

R1 SB - - 195N1016

-ST - 195N1017

-SB - 195N1018

R1 ST - 195N1019

R1 SB - 195N1020

-ST - 195N1021

-SB - 195N1022

R1 ST - 195N1023

R1 SB - 195N1024

1,1 kW VLT 2811 3 x 380-480 V

RFI Unit Profibus

3MBit/s

- ST - - 195N1025

- SB - - 195N1026

R1 ST - - 195N1027

R1 SB - - 195N1028

-ST - 195N1029

-SB - 195N1030

R1 ST - 195N1031

R1 SB - 195N1032

-ST - 195N1033

-SB - 195N1034

R1 ST - 195N1035

R1 SB - 195N1036

DeviceNet Ordering no.

1,5 kW V LT 2815 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1037

- SB - - 195N1038

R1 ST - - 195N1039

R1 SB - - 195N1040

-ST - 195N1041

-SB - 195N1042

R1 ST - 195N1043

R1 SB - 195N1044

-ST - 195N1045

-SB - 195N1046

R1 ST - 195N1047

R1 SB - 195N1048

2,2 kW V LT 2822 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1049

- SB - - 195N1050

R1 ST - - 195N1051

R1 SB - - 195N1052

-ST - 195N1053

-SB - 195N1054

R1 ST - 195N1055

R1 SB - 195N1056

-ST - 195N1057

-SB - 195N1058

R1 ST - 195N1059

R1 SB - 195N1060

3,0 kW V LT 2830 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1061

- SB - - 195N1062

R1 ST - - 195N1063

R1 SB - - 195N1064

-ST - 195N1065

-SB - 195N1066

R1 ST - 195N1067

R1 SB - 195N1068

-ST - 195N1069

-SB - 195N1070

R1 ST - 195N1071

R1 SB - 195N1072

2800

Introduction to VLT

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

4,0 kW VLT 2840 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1073

- SB - - 195N1074

R1 ST - - 195N1075

R1 SB - - 195N1076

-ST - 195N1077

-SB - 195N1078

R1 ST - 195N1079

R1 SB - 195N1080

-ST - 195N1081

-SB - 195N1082

R1 ST - 195N1083

R1 SB - 195N1084

5,5 kW VLT 2855 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1085

- SB - - 195N1086

R1 ST - - 195N1087

R1 SB - - 195N1088

-ST - 195N1089

-SB - 195N1090

R1 ST - 195N1091

R1 SB - 195N1092

-ST - 195N1093

-SB - 195N1094

R1 ST - 195N1095

R1 SB - 195N1096

11 kW VLT 2880 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1109

- SB - - 195N1110

R3 ST - - 195N1111

R3 SB - - 195N1112

-ST - 195N1113

-SB - 195N1114

R3 ST - 195N1115

R3 SB - 195N1116

-ST - 195N1117

-SB - 195N1118

R3 ST - 195N1119

R3 SB - 195N1120

15 kW VLT 2881 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1121

- SB - - 195N1122

R3 ST - - 195N1123

R3 SB - - 195N1124

-ST - 195N1125

-SB - 195N1126

R3 ST - 195N1127

R3 SB - 195N1128

-ST - 195N1129

-SB - 195N1130

R3 ST - 195N1131

R3 SB - 195N1132

7,5 kW VLT 2875 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1097

- SB - - 195N1098

R1 ST - - 195N1099

R1 SB - - 195N1100

-ST - 195N1101

-SB - 195N1102

R1 ST - 195N1103

R1 SB - 195N1104

-ST - 195N1105

-SB - 195N1106

R1 ST - 195N1107

R1 SB - 195N1108

ST: Standard unit.

SB: Standard unit with integral brake.

R1: With RFI filter that complies with EN 55011-1A.

R3: With RFI filter that complies with EN 55011-1

18.5 k W VLT 2882 3 x 380-480 V

RFI Unit Profibus

DeviceNet Ordering no.

3MBit/s

- ST - - 195N1133

- SB - - 195N1134

R3 ST - - 195N1135

R3 SB - - 195N1136

-ST - 195N1137

-SB - 195N1138

R3 ST - 195N1139

R3 SB - 195N1140

-ST - 195N1141

-SB - 195N1142

R3 ST - 195N1143

R3 SB - 195N1144

1) Also available in 12 MBit/s.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

2800

Introduction to VLT

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■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 Motio n Control Tool MCT 10 Set-up Software.

MCT 10 Set-up Software

MCT 10 has been designed as an easy to use interactive tool for setting parame ters in our frequency converters. The MCT 10 Set-up Software will be useful for:

• Planning a communic ation 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

• Expandinganexistingnetwork

• Future developed drives will be supported

MCT10Set-upSoftwaresupportProfibusDP-V1via 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 Set-up Software Modules

The following modules are included in the software package:

MCT 10 Set-up Software

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

SyncPos

Creating SyncPos programme

Ordering number:

Please order your CD containing MC Software using code number 130B1000.

T10Set-up

MCT 31

The MCT 31 harmonic calculation PC tool enables easy estimation of the harmonic distortion in a given application. Both the harmonic distortion of Danfoss frequency converters as well as non-Danfoss frequency converters with different additional harmonic reduction measurements, such as Danfoss AHF filters and 12-18-pulse rectifiers, can be calculated.

Ordering number:

Please order your CD containing the MCT 31 PC tool using code number 130B1031.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Accessories for the VLT 2800

Type Description Ordering no. Motor coil The motor coil module can be used for VLT 2803-2875 195N3110 RFI 1B filter The RFI 1B filter module can be used for VLT 2803-2875 195N3103 RFI 1B/LC filter 4 A The RFI 1B/LC filter 4 A can be used for VLT 2803-2805

200-240 V and VLT 2805-2815 380-400 V

RFI 1B/LC filter 9.1 A RFI 1B/LC filter 9.1 A can be used for VLT 2807-2815

200-240 V and VLT 2822-2840 380-400 V

EMC filter EMC filter for long motor cables can be used for VLT

2805-2815 380-480 V

EMC filter EMC filter for long motor cables can be used for VLT

2822-2840 380-480 V

EMC filter EMC filter for long motor cables can be used for VLT

2855-2875 380-480 V NEMA 1 terminal cover VLT 2803-2815 200-240 V, VLT 2805-2815 380-480 V 195N1900 NEMA 1 terminal cover VLT 2822 200-240 V, VLT 2822-2840 380-480 V 195N1901 NEMA 1 terminal cover VLT 2840 200-240 V, VLT 2855-2875 380-480 V 195N1902 IP 21 top cover VLT 2803-2815 200-240 V, VLT 2805-2815 380-480 V 195N2179 IP 21 top cover VLT 2822 200-240 V, VLT 2822-2840 380-480 V 195N2180 IP 21 top cover VLT 2840 200-240 V, VLT 2855-2875 380-480 V 195N2181 IP 21 top cover VLT 2880-2882 380-480 V 195N2182 LCP 2 control unit LCP 2 for programming the frequency converter 175N0131 Cable for LCP 2 control unit Cable from LCP 2 to frequency converter 175Z0929 DeviceNet cable Cable for DeviceNet connection 195N3113 LCP2remote-mountingkit Kitforremote-mountingofLCP2(incl. 3mcable,

excl. LCP 2) LOP (Loca l Operation Pad) LOP can be used fo r setting the reference

andstart/stopviathecontrolterminals. VLT Software Dialog CD-ROM version

MCT 10 Set-up Software 130B1000 External heat sink, small External heat sink, large

Incl. the modules Basis, Logging, Template,

W x H x D = 222 x 450 x 65mm

W x H x D = 288 x 450 x 71mm

Guided Tour in 6 languages (Danish, English, German, Italian, Spanish and French).

For further information see VLT 2800 Cold

Plate Instruction MI.28.DX.02.

195N3100

195N3101

192H4719

192H4720

192H4893

175Z0850

175N0128

175Z0967

195N3111 195N3112

2800

Introduction to VLT

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Dynamic braking

With the VLT 2800 the dynamic braking quality in an application can be improved in two ways, either with the aid of brake resistors or AC braking.

Danfoss offers a complete range of brake resistors for all VLT 2800 frequency converters. It is the job of the brake resistor to apply a load to the intermediate circuit during braking, thereby ensuring that the brake power can be absorbed by the brake resistor. Without a brake resistor, the intermediate circuit voltage of the frequency converter would go on rising, until cutting out for protection. The advantage of using a brake resistor is that you can brake quickly with large loads, e.g. on a conveyor belt.

Danfoss has chosen a solution in which the brake resistor is not integrated into the frequency converter. This gives the user the following advantages:

-Theresistor’s cycle time can be selected as required.

- The heat generated during braking can be

diverted outside the panel cabinet, where the energy can possibly be utilised.

- No overhea ting of the e lectronic components,

even if the brake resistor is overloaded.

VLT®2800 Series

■Calculation of brake resistance

The following example and formula only apply to VLT 2800 Series. To ensure that the frequency converter does not cut out for safety reasons when the motor brakes, the resistance value is selected on the basis of the peak braking effec t and the intermediate circuit voltage:

AC braking is an integrated function that is used for applications in which there is a need for limited dynamic braking. The AC braking function makes it possible to reduce the brake power in the motor instead of in a brake resistor. The function is intended for applicati ons where the required braking torque is less than 50% of rated torque. AC braking is selected in par. 400 Brake function.

NB!:

The AC brake cannot be used if the required braking torque is more than 50% of rated braking torque. In such instances

a brake resistor must be used.

■Brake Setup

ThefigureshowsabrakeSetupwitha frequency converter. In the following paragraphs, expressions and acronyms are used about brake Setups that can be seen from the figure.

It can be seen that the brake resistance depends on the intermediate circuit voltage (UDC). With frequency converters that have a mains voltage of 3 x 380 - 480 Volt, the brake will be active at 770 Volt (UDC); if the frequency converter has a mains voltage of 3 x 200 - 240 Volt, the brake will be active at 385 Volt (UDC). You can also choose to use the brake resistance recommended by Danfoss (R guarantee that the frequency converter brakeatthehighestbrakingtorque(M

). This is a

REC

is able to

). The

recommended brake resistance can be seen from the ordering table for brake resi

calculated as:

REC

stors.

NB!:

Remember to check that the brake resistance can manage a voltage of 850 Volt or 430 Volt, if Danfoss brake resistors are not being used.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

is typically 0.90 and η

motor

is typically 0.98. For 400

INV

Volt and 200 Volt frequency converters, respectively,

at 160% braking torque can be written as:

REC

NB!:

The brake resistance selected should have an ohmic value no more than 10% lower

than that recommended by Danfoss. I lower brake resistance is selected there is a risk of overcurrent, which can destroy the unit.

■Calculation of braking power

When calculating the braking pow er, it must be ensured that the mean and pe ak powers can be dissipated to the brake resistor. The mean power is determined by the period time of the process, i.e. for how long the brake is applied in relation to the period time of the process. The peak power is determined by the braking torque, which means that during braking the brake resistor must be able to dissipate the energy input. The figure shows the relation between mean power and peak power.

f a

of the motor and the frequency converter. The peak effect is calculated as follows:

If you select Danfoss’ recommended braking resistor

), you are certain that the braking resistance can

REC

generate a braking torque of 160% on the m otor shaft.

■Calculation of mean power on brake resistor

The mean power is determined by the period of the process, i.e. how long you brake in relation to the period of the process. Duty-cycle for braking is calculated as follows:

Tp= The process time in seconds.

= The braking time in seconds.

Danfoss sells brake resistors with variable duty-cycles up to 40%. For example, with a 10% duty-cycle, brake resistors can take up P

in 10% of the

peak

process period. The remaining 90% of the period time is spent on redirecting surplus heat. The mean power at 10% duty cycle can be calculated as follows:

2800

Introduction to VLT

■Calculation of peak power of brake resistor

PEAK, MEC

is the peak power at which the motor

brakes on the motor shaft. It is calculated as follows:

is the term describing the braking power that

peak

is applied to the brake resistor when the motor applies the brakes. P

, as the power is reduced by the efficiency

MEC

MG.28.E9.02 - VLT is a registered Danfoss trademark

is smaller than P

PEAK

PEAK,

The mean power at 40% duty cycle can be calculated as follows:

These calculations apply to intermittent braking with period times of up to 120 seconds.

NB!:

Period times longer than 120 sec. may lead to overheating of the resistor.

■Continuous braking

For continuous braking, a brake resistor should be selected in which the constant braking power does not exceed the mean power P

of the brake resistor.

AVG

VLT®2800 Series

Please contact your D anfoss supplier for further information.

■D.C. injection braking

If the three-phase winding of the stator is fed with direct current, a stationary magnetic field will be set up in the stator bore causing a voltage to be induced in the bars of the cage rotor as long as the rotor is in motion. Since the electrical resistance of the rotor cage is very low, even small induced voltages can create a high rotor current. This current will produce a strong braking effect on the bars and hence on the rotor. As the speed falls, the frequency of the induced voltage falls and with it the inductive impedance. The ohmic resistance of the rotor gradually becomes dominant and so increases the braking effect as the speed comes down. The braking torque generated falls away steeply just before standstill and finally ceases when there is no further movement. Direct current injection braking is therefore not suitable for actually holding a load at rest.

■AC-braking

When the motor acts as a brake the DC-link voltage will increase because energy is fed back to the DC-link. The principle in AC-brake is to increase the magnetisation during the braking and thereby increase the thermal losses of the motor. Using par. 144 in VLT 2800 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.

The braking torque depends on the speed. With the AC-brake function enabled and parameter 144 = 1,3 (factory setting) it is possible to brake with about 50 % of rated torque below 2/3 of rated speed and with about 25 % at rated speed. The function is not working at low speed (below 1/3 of nominal motor speed). It is only possible to run for about 30 seconds with pa rameter 144 greater than 1.2.

NB!:

If the value in parameter 144 is increased,

the motor current will simultaneously increase

significantly when generator loads are applied. The parameter should therefore only be changed if it is guaranteed during measurement that the motor current in all operating situations will never exceed the maximum permitted current in the motor. Please note: The current can not be read out from the display.

DC braking is to be applied a s required. The most efficient way of doing this is by using a combinat ion of dynamic and DC braking. See the illustration.

NB!:

When changing from dynamic to DC braking, there will be a short period (2-6 milliseconds) with very low braking torque.

How to calculate optimum DC-brake cut in frequency:

Slip S=

Synchronous speed [1/min]

f = frequency p=no. ofpolepairs

= speed of the rotor

DC-brake cut in frequency =

■Brake cable

Max. length [m]: 20 m The connection cable to the brake resistor must be screened/armoured. Connect the screen totheconductivebackplateatthefrequency converter and to the brake resistor metal cabinet by means of cable clamps.

NB!:

If D anfoss brake resistors are not used, it must be ensured that the brake resistor is induction-free.

■Optimal braking using resistor

Dynamic braking is useful from maximum speed down to a certain frequency. Below this frequency

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Protective functions during installation

When a brake resistor is installed, the best possible endeavors should be made to avoid overloads, as the heat generating from a brake resistor may involve a fire risk.

NB!:

The brake resistor should be fitted to a

nonflammable material.

For p rotection of the installation, a thermal relay should be fitted that cuts off the frequency converter if the brake current becomes too high. Flat pack resistors are self-protecting.

Calculate the brake current setting of the thermal relay as follows:

Itherm relay =

Rbris the current brake resistor value calculated in the section on "Calc ulation of brake resistance". The figure shows an installation with a thermal relay.

The brake current setting of thermal relay for Danfoss 40% brakeresistors can be found in the table further on.

2800

Introduction to VLT

Some of the Danfoss Brakeresistors contain a thermal switch (see table further on). This switch is NC (normally closed) and can be used e.g. coasting stop reverse between terminal 12 and 27. The drive will then coast, if the thermal switch is opened.

NB!:

The thermal switch is not a protective

device. For protection, use a thermal

switch as shown in the figure.

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Brake resistors

Flatpack brake resistors IP 65

VLT®2800 Series

Type P

motor

[kW]

MIN

[ ]

Size [ ]/[W]

per item

Duty cycle % Order no.

175Uxxxx 2803 (200 V) 0.37 297 330 /100W 30 1003 2805 (200 V) 0.55 198 220 /100W 20 1004 2807 (200 V) 0.75 135 150 /100W 14 1005 2811 (200 V) 1.10 99 100 /100W 8 1006 2815 (200 V) 1.50 69 72 / 200 W 16 0992 2822 (200 V) 2.20 43 50 / 200 W 9 0993 2840 (200 V) 3.70 21 50 / 200 W 11 2x0993 2805 (400 V) 0.55 747 830 /100W 20 1000 2807 (400 V) 0.75 558 620 /100W 14 1001 2811 (400 V) 1.10 387 430 /100W 8 1002 2815 (400 V) 1.50 297 310 /200W 16 0984 2822 (400 V) 2.20 198 210 /200W 9 0987 2830 (400 V) 3.00 135 150 /200W 5.5 0989 2830 (400 V) 3.00 135 300 /200W 11 2x0985 2840 (400 V) 4.00 99 240 /200W 11 2x0986

These two resistors must be connected in parallel. Order two

pieces. See dimensions of Flatpack brake resistors on the next page.

Brake resistor for VLT 2803-2882 duty-cycle 40% data and codenumber

VLT type Intermit-

tent brak-

ing period

time

[seconds]

2803 (200 V) 120 0,37 297 330 0,16 0,7 1900* 1,5** 2805 (200 V) 120 0,55 198 220 0,25 1,1 1901* 1,5** 2807 (200 V) 120 0,75 135 150 0,32 1,5 1902* 1,5** 2811 (200 V) 120 1,1 99 110 0,45 2,0 1975* 1,5** 2815 (200 V) 120 1,5 74 82 0,85 3,2 1903* 1,5** 2822 (200 V) 120 2,2 50 56 1,00 4,2 1904* 1,5** 2840 (200 V) 120 3,7 22 25 3,00 11,0 1925 1,5**

motor

[kW]

[ ]

min

[ ]

rec

b, max

[kW]

Therm.re-

lay

[Amp]

Code

number

175Uxxxx

Cable cross

section

[mm

]

2805 (400 V) 120 0,55 747 830 0,45 0,7 1976* 1,5** 2807 (400 V) 120 0,75 558 620 0,32 0,7 1910* 1,5** 2811 (400 V) 120 1,1 387 430 0,85 1,4 1911* 1,5** 2815 (400 V) 120 1,5 297 330 0,85 1,6 1912* 1,5** 2822 (400 V) 120 2,2 198 220 1,00 2,1 1913* 1,5** 2830 (400 V) 120 3,0 135 150 1,35 3,0 1914* 1,5** 2840 (400 V) 120 4,0 99 110 1,60 3,8 1979* 1,5** 2855 (400 V) 120 5,5 80 80 2,00 5,0 1977* 1,5** 2875 (400 V) 120 7,5 56 56 3,00 6,8 1978* 1,5** 2880 (400 V) 120 11 40 40 5,00 11,2 1997* 1,5** 2881 (400 V) 120 15 30 30 10,0 18,3 1998 2,5** 2882 (400 V) 120 18,5 25 25 13,0 22,8 1999 4**

*With KLIXON switch **Always observe national and local regulations

motor

min

rec

b, max

Therm. relay : Brake current setting of thermal relay

:RatedmotorsizeforVLTtype : Minimum permissible brake resistor : Recommended brake resistor (Danfoss) : Brake resistor rated power as stated by supp

lier

Code number : Order numbers for Danfoss brake resistors Cable cross section : Recommended m

inimum value based upon PVC insul

ated copper cable, 30 degree C elsius

ambient temperature with normal heat dissipation

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

See dimensions of brake resistor for VLT 2803-2882 duty cycle 40% in instruction MI.90.FX.YY.

■Dimensions of Flatpack brake resistors

100 W 200 W

2800

Introduction to VLT

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Control unit

On the front of the frequency converter there is a control panel.

The control panel is divided into four function groups:

1. Six-digit LED display.

2. Keys for changing parameters and shifting

display function.

3. Indicator lamps.

4. Keys for local operation.

All displays of data are in the form of a six-digit LED display capable of showing one item of operating data continuously during normal operation. As a supplement to the display, there are three indicator lamps for indicat ion of mains connection (ON), warning (WARNING) and alarm (ALARM). Most of

the frequency converter’s parameter Setups can be

changed immediately via the control panel, unless this function has been programmed as Locked [1] via parameter 018 Lock for data changes.

These keys are also used in Display mode for selecting the display of an operating value.

The [QUICK MENU] + [+] keys must be

pressed at the same time to give access to all parameters. See Menu mode.

[STOP/RESET] is used for stopping the

connected motor or for resetting the frequency converter after a trip. Can be selected as Active [1] or Not active [0] via parameter 014 Local stop/reset. In Display mode, the display will flash if the stop function is ac tivated.

NB!:

If the [STOP/RESET] key is set at Not active [0] in parameter 014 Loca l stop/reset,and

there is no stop command via the digital inputs or serial communication, the motor can only be stopped by disconnecting the mains voltage to the frequency converter.

[START] is used for starting the frequency

converter. It is always active, but the [START] key cannot override a stop command.

■Manual initialisation

Disconnect mains voltage. Hold the [QUICK MENU] + [+] + [CHANGE DATA] keys down while simultaneously reconnecting the mains voltage. Release the keys; the frequency converter has now been programmed for the factory setting.

■Control keys

[QUICK MENU] allows access to the parameters

used for the Quick menu. The[QUICK MENU] key is also used if a change to a parameter value is not to be implemented. See also [QUICK MENU] + [+].

[CHANGE DATA] is used for changing a setting.

The [CHANGE DATA] key is also used for confirming a change of parameter settings.

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

for changing parameter values.

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Display readout states

Display mode

In normal operation, one item of o perating data can

be displayed continuously at the operator’sown

choice. By means of the [+/-] keys the following options c an be selected in Display mode:

-Outputfrequency[Hz]

- Output current [A]

-Outputvoltage[V]

- Intermediate circuit voltage [V]

-Outputpower[kW]

- Scaled output frequency f

out

x p008

Menu mode

In order to enter the Menu mode [QUICK MENU] + [+] must be activated at the same time. In Menu mode, most of the frequency converter parameters can be changed. Scroll through the parameters using the [+/-] keys. While scrolling in the Menu mode proceeds, the parameter number will flash.

The display shows that the setting in parameter 102 Motor power P

is 0.75. In order to change

M,N

the value of 0.75, [CHANGE D ATA] must first be activated; the parameter value can then be changed using the [+/-] keys.

VLT®2800 Series

The display shows that in parameter 128 Motor thermal protection the selection made is Thermistor trip [2].

Quick menu

Using the [QUICK MENU] key, it is possible to access the 12 most important parameters of the frequency converter. After programming, the frequency converter is in most cases ready for operation. When the [QUICK MENU] key is activated in Display mode, the Quick menu starts. Scroll through the quick menu using the [+/-] keys and change the data values by first pressing [CHANGE DATA] and then changing the parameter value with the [+/-] keys. The Quick menu parameters are:

• Par. 100 Configuration

• Par. 101 Torque characteristic

• Par. 102 Motor power P

• Par. 103 Motor voltage U

• Par. 104 Motor frequency f

• Par. 105 Motor current I

• Par. 106 Rated motor speed n

• Par. 107 Automatic motor adaptation

• Par. 202 Output frequency high limit f

• Par. 203 Reference range

• Par. 204 Minimum reference Ref

• Par. 205 Maximum reference Ref

• Par. 207 Ramp-up time

• Par. 208 Ramp-down time

• Par. 002 Local/remote operation

• Par. 003 Local reference

Parameter 102 - 106 can be read out from

the motor’s nameplate.

M,N

MAX

MIN

MAX

2800

Introduction to VLT

If for a given parameter the display shows three dots at the right, it means that the parameter value has more tha n three d igits. In order to see the value, activate [CHANGE DATA].

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Hand Auto

During normal operation the frequency converter is in Auto mode, where the reference signal is given externally, analog or digital via the control terminals. However, in Hand mode, it is possible to give the reference signal locally via the control panel.

VLT®2800 Series

On the control terminals, the following control signals will remain active when Hand mode is act ivated:

• Hand Start (LCP2)

• Off Stop (LCP2)

• Auto Start (LCP2)

• Reset

• Coasting Stop Inverse

• Reset and Coasting Stop Inverse

• Quick Stop Inverse

• Stop Inverse

• Reversing

• DC Braking Inverse

• Setup S elect LSB

• Setup S elect MSB

• Thermistor

• Precise Stop Inverse

• Precise Stop/Start

• Jog

• Stop Command Via Serial Comm. Switching between Auto- and Hand mode:

By activating the [Change Data] key in [Display Mode], the display will indicate the mode of the frequency converter.

3. When "107" appears once more with the data

value [0], AM T is complete. Press [STOP/RESET] to save the motor data.

4. "107" will then continue to flash with the data

value [0]. You can now proceed.

NB!:

VLT 2880-2882 do not have AMT function.

Scroll up/down in order to switch to Hand mode:

When the frequency converter is in Hand mode thereadoutwillbelike:

and the reference can be changed by using the following keys:

NB!:

Please note, that parameter 020 may block the choice of mode.

Automatic motor tuning

Automatic motor tuning (AMT) is performed as follow s:

1. In parameter 107 Automatic motor tuning select data value [2]. "107" will now flash, and "2" will not flash.

2. AMT is activated by pressing start. "107" will now flash and dashes will move from left to right in the data value field.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■The LCP 2 Control unit, option

unless this function has been programmed as Locked [1] via parameter 018 Lock for data changes.

■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

Setup, including selection of the display’sview

mode during normal operation.

2800

Introduction to VLT

[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.

The frequency converter can be combined with an LCP control unit (Local Control Panel - LCP 2) which makes up a complete interface for op and programming of the frequency converter. The LCP 2 control unit can be attached up to three metres from the frequency converter, front panel, using an accessory kit.

The control panel is divided into five functional groups:

1. Display.

2. Keys used to cha nge the display fun

3. Keys used to change the programme parameters.

4. Indicator lamps.

5. Local control keys.

All data is displayed via a 4-line display, which during normal operation will be able to continuously display 4 items of operating data and 3 operating modes. D uring p information needed for quick, effective parameter setup of the frequency converter will be displayed. As a supplement to the displ lamps for voltage (ON), warning (WARNING) and alarm (ALARM). All frequency converter parameter Setups can be changed immedia

ay, there are three indicator

tely from the control panel,

alphanumeric

rogramming all

eration

e.g. on a

ction.

[QUICK MENU] provides access to the parameters

used in the Quick Menu. It is possible to switch between Quick Menu and Menu mode.

[MENU] givesaccesstoallparameters. Itispossible

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 va lue.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■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.

■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 Local stop. If stop is activated Display line 2 will flash.

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 Local jog.

NB!:

If the local control keys are set to inactive, these will both become active when the

frequency converter is set to Local control and Remote control via parameter 002 Local/remote operation, with the exception of [FWD/REV], which is only act ive in Local control.

■Display mode

195NA113.10

VAR 1.1 VAR 1.2 VAR 1.3

VAR 2

STATUS

SETUP

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 o f a number. In the event of alarms this is displayed in lines 3and4withexplanatorytext. 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 act ive 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.

[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 Local reversing.The[FWD/REV]key is only active when parameter 002 Local/remote operation is set to Local control.

[START] is used to start the frequency converter. Is

always active, but cannot override a stop command.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Operating data Unit 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 reference [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 programmed via parameters 009, 010, 011 and 012 Display readout .

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 pertaining units are shown, see table. In the example, the following have been selected: Frequency, Reference, Torque and Current as readout in the first and second line.

Display mode III:

This display mode is called up as long as the [DISPLAY / STATUS] key is held down. When the key is released it switches back to Display mode II, unless the key is held down for less than approx. 1 sec., in which case the system always reverts to Display mode I.

REF% TORQUE CURR A

50.0 Hz

MOTOR IS RUNNING

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.

SETUP

2800

Introduction to VLT

■Display modes

The LCP control unit has different display modes, which depend on the mode selected for the frequency converter.

DisplaymodeI:

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, Frequency has b een selected as readout via parameter 009 Large display readout.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 / S TATUS] key.

MG.28.E9.02 - VLT is a registered Danfoss trademark

DisplaymodeIV:

This display mode can be called up d uring operation if a change has to be made in another Setup without stopping the frequency converter. This function is activated in parameter 005 Programming Setup.

24.3% 30.2% 13.8A

SETUP

50.0 Hz

MOTOR IS RUNNING

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

■Parameter 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 over view of the many parameters, 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 c ases, in accorda nce 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 m ode 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, paramet will be split into groups, with the first digit ( left) of the parameter number indicating the group number of the parameter in question.

VLT®2800 Series

■Quick m enu 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 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 [kW] 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 [Hz] 9 205 Maximum reference [Hz] 10 207 Ramp-up t ime [sec] 11 208 Ramp-down time [sec] 12 002 Local/remote operat ion 13 003 Local reference [Hz]

■Parameter selection

Menu mode is started by pressing the [MENU] key, which produces the following readout on the display:

FREQUENCY

ers

50.0 Hz

0 KEYB.&DISPLAY

SETUP

• Using the [QUICK MENU] key, it is possibl

eto get acc ess to the most important parameters of the frequency converter. After programming, the frequency converter is in most

cases ready for operat ion. 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 Configuration .

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

In Menu mode, the parameters are divided into groups. Selection of parameter group is effected using the [< >] keys. The following parameter groups will be accessible:

Group no. Parameter group

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

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

When the required parameter group has been selected, each parameter can be chosen by means of the [+ / -] keys:

FREQUENCY

50.0 Hz

001 LANGUAGE

ENGLISH

The 3 rd 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 w h ether a parameter has been selected under the Quick menu or the Menu mode, theprocedureforchangingdatawillbethesame. Pressing the [CHANGE DATA] key gives access to changing the selected parameter, following which the und erlini n g in line 4 will flash on 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.

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].

■ M anual initialisation

NB!:

Manual initialisation is n the LCP 2 175N0131 control unit. It is, however, possible to perform an initialisation

via par. 620 Operation mode:

The following parameters are not set to zero when initialising via par. 620 Operation mode.

- par. 500 Address

- par. 501 Baud rate

- par. 600 Operating hours

- par. 601 Hours run

- par. 602 kWh counter

- par. 603 Number of power-ups

- par. 604 Number of overtemperatures

- par. 605 Number of overvoltages

- par. 615-617 Fault log

ot possible on

2800

Introduction to VLT

FREQUENCY

50.0 Hz

001 LANGUAGE

ENGLISH

The bottom display line will show the value that w ill be entered (saved) when acknowledgment is given [OK].

Changeofnumericdatavalue

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

The selected digit can then be changed infinitely variably using the [+ / -] keys:

FREQUENCY

50.0 Hz

130 START FREQUENCY

10.0 HZ

SETUP

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Mechanical dimensions

The drawings below give the mechanical dimensions. All dimensions are in mm.

VLT 2803-2815 200-240 Volt VLT 2805-2815 380-480 Volt

VLT®2800 Series

VLT 2840 200-240 Volt VLT 2855-2875 380-480 Volt

VLT 2822 200-240 Volt VLT 2822-2840 380-480 Volt

VLT 2880-82 380-480V

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Motor coils (195N3110)

■RFI 1 B filter (195N3103)

VLT®2800 Series

■Terminal cover

The drawing below gives the dimensions for NEMA 1 terminal covers for VLT 2803-2875.

Dimension ’a’ depends on the unit type.

Installation

MG.28.E9.02 - VLT is a registered Danfoss trademark

■IP 21 solution

VLT®2800 Series

Dimensions

Type Code number A B C VLT 2803-2815 200-240 V, VLT 2805-2815 380-480 V 195N2118 47 80 170 VLT 2822 200-240 V, VLT 2822-2840 380-480 V 195N2119 47 95 170 VLT 2840 200-240 V, VLT 2855-2875 380-480 V 195N2120 47 145 170 VLT 2880-2882 380-480 V 195N2126 47 205 245

■EMC filter for long motor cables

192H4719

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

192H4720

Installation

192H4893

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Mechanical installation

Please pay attention to the requirements that apply to installation.

The frequency converter is cooled by means of air c irculation. For the unit to be able to release its cooling air, the minimum free distance above and below the unit must be m 100 mm . To protect the unit from overheating, it must be ensured that the am bient temperature does not rise above 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 General technical data. If the ambient temperature is in the range of 45 °C - 55 °C, derating of the frequency converter is to be carried out. See Derating for ambient temperature. Pleasenotethattheservicelifeofthe frequency converter will be reduced if no allowance is made for the derating for ambient temperature.

■Side-by-side

All VLT 2800 units can be installed side-by-side and in any position, as the units do not require ventilation on the side.

inimum

■Integration

All units with enclosure IP 20 must be integrated in cabinets and panels. IP 20 is not suitable for remote mount ing. In some countries, e.g. in the USA, units with enclosure NEMA 1 are approved for remote mounting.

■Spacing for mechanical installation

All units require a minimum of 100 mm air between other components and vents of the enclosure.

NB!:

With the IP 21 solution all units require a minimum of 100 mm air on each side. This means that side-by-side

mounting is n

ot allowed.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■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 b e 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.

■Earthing

Comply with the following at installation:

• Safety earthing: The drive has a high leakage

current and must be earthed properly for safety. Follow all local safety regulations.

• High frequency earthing: Keep earthing

connections as short as possible.

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. See also EMC-compliant electrical installation.

■Screened/armoured cables

The screen must have low HF impedance, which is achieved by a braided screen of copper, aluminium or iron. Screen reinforcement intended for mechanical protection, for example, is not suitable for EMC-correct installation. See also Use of EMC -correc t cables.

■Extra protection

RCD relays, multiple protective earthing or earthing can be used as extra protection, provided that local safety regulations are complied w ith. In the case of an earth fault, a DC content may develop in the faulty current. Never use an RCD (ELCB relay), type A, as it is not suitable for DC faulty currents. If RCD relays are used, local regulations must be complied with. If RCD relays are used, they must be:

Installation

Connect all earthing systems to ensure the lowest possible conductor impedance. The lowest possible conductor impedance is achieved by keeping the conductor as short as possible and by grounding with the greatest possible surface area. If multiple drives are installed in a cabinet, the cabinet backplate, which must be made of metal, should be used as a joint earth reference plate. The drives must be fitted to the backplate at the lowest possible impedance.

To achieve low impedance, connect the drive to the backplate with the drive fastening bolts. Remove all paint from the contact points.

■Cables

The control cable and the mains cable should be installed separately from motor cables to prevent noisetransfer. Asaruleadistanceof20cmis sufficient, but it is recommended that the distance is as great as possible, particula rly when cables are installed in parallel over large distances.

- Suitable for protecting equipment with a DC content in the faulty current (3-phase bridge rect ifier).

- Suitable for a pulse-shaped, brief discharge on power-up.

- Suitable for a high leakage current.

N must be connected before L1 for single phase 200 V reduced leakage current units (type code R4).

■High voltage test

A high voltage test can be performed by short-circuitingterminalsU,V,W,L1,L2andL3, and applying max. 2160 V DC in 1 sec. between this short-circuit and terminal 95.

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.

MG.28.E9.02 - VLT is a registered Danfoss trademark

■EMC-correct electrical installation

General points to be observed to ensure EMC-correct electrical installation.

- Use only screened/armoured motor cables and screened/armoured control cables.

- Connect the screen to earth at both ends.

- Avoid installation with twisted screen ends (pigtails), since this ruins the screening effect at high frequencies. Use cable clamps instead.

VLT®2800 Series

- It is important to ensure good electrical contact from the installation plate through the installation screws to the metal cabinet of the frequency c onverter.

- Use starwashers and galvanically conductive installation plates.

- Do not use unscreened/unarmoured motor cables in the installation cabinets.

The illustration below shows EMC -c orrect electrical installation, in which the frequency converter has been fitted in an installation cabinet and connected to a PLC.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Use of EMC compliant cables

In order to comply with requirements for EMC immunity of the control cables and EMC emissions from the motor cables screened/armoured cables must be used. The ability of a cable to reduce the amount of ingoing and outgoing radiation of electric noise depends on the transfer impedance (Z

). The screen of a

cable is normally designed to reduce the transfer of electric noise, and a screen with a lower Z effective than a screen with a higher Z

is rarely stated by cable manufacturers, but it

is often possible to estimate Z

by looking at and

is mor e

assessing the physical design of the cable.

can be assessed on the basis of the following factors:

- the contact resistance between the individual screen conductors.

- Screen coverage, i.e. the physical area of the cable covered by the screen. Is often stated as a percentage and should be no less than 85%.

- The screen type, i.e. braided or twisted pattern. A braided pattern or closed pipe is recommended.

Installation

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Earthing of screened/armoured control cables

In general control cables must be screened/armoured,

and the screen must be co nnected to the unit’s metal

cabinet with a cable clamp at each end.

The drawing below shows the correct way to perform the earthing, and what to do whe n in doubt.

1. Correct earthing

Control cable s and cables for serial communication must be attached with cable clamps at both ends to ensure maximum possible electrical contact.

2. Incorrect earthing

Do not use twisted screen ends that are plaited together (pigtails), as these increase screen impedance at higher frequencies.

3. Protection with respect to earth

potential between PLC and VLT

If the earth potential between the VLT frequency converter and the PLC (etc.) is different, electric noise may occur that will disturb the whole system. This problem can be solved by fitting an equalising cable, to be placed next to the co ntrol cable. Minimum cable cross-section: 16 mm

4. In the event of a 50/60 Hz earth loop

If ver y long c ontrol cables are used, 50/60 Hz earth l oops can arise, and these can interfere with the whole system. This problem is resolved by attaching one e nd of the screen to the earth via a 100 nF capacitor (short pin length).

VLT®2800 Series

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Diagram

VLT®2800 Series

* Integrated 1A RFI filter and brak ** VLT 2803-2815 200-240 V is not supplied with intermediate circuit coils.

eisanoption.

Installation

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Electrical installation

See also the section Brake Connect i on.

VLT®2800 Series

VLT 2803-2815 200-240 V, 2805-2815 380-480 V

VLT 2822 200-240 V, 2822-2840 380-480 V

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

VLT 2840 200-240 V, 2855-2875 380-480 V

Installation

VLT 2880-2882 380-480 V

Please note that the units will be supplied with two bottom plates; one for metric glands and one for conduits.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Safety clamp

If the galvanic isolation (PELV) between control terminals and high-voltage terminals

is to be maintained, the accompanying safety c lamp must be fitted to VLT 2803-2815, 200-240 V, and VLT 2805-2815, 380-480 V.

■Pre-fuses

For all unit types, external pre-fuses must be fitted in the mains supply to the frequency converter. For UL/cUL applications with a mains voltage of 200-240 Volt, use pre-fuses type Bussmann KTN-R (200-240 Volt) or Ferraz Shawmut type ATMR (max. 30A). For UL/cUL applications with a mains voltage of 380-480 Volt, use pre-fuses type Bussmann KTS-R (380-480 Volt). See Technical data for correct dimensioning of pre-fuses.

■Mains connection

Please note that at 1 x 220-240 V olt the neu tral wire must be attached to terminal N wire must be connected to terminal L1

and the phase

(L2)

(L1)

400-Volt units with RFI-filters may not b e connected to mains supplies in which the

voltage between phase and earth is more than 300 Volts. Please note that for the IT mains and the del ta earth the mains voltage can exceed 300 Volts between phase and earth. Units with type code R5 can be connected to mains supplies with up to 400 V between phase and earth.

See Technical data for correct dimensioning of cable cross-section. See also the section entitled Galvanic isolation for further details.

■Motor connection

Connect the motor to terminals 96, 97, 98. Connect earth to terminal 99.

No. 96 97 98 M otor voltage 0-100% of

mains voltage.

UVW 3wiresofmotor

U1W2V1U2W1V26 wires out of motor, Delta

connected

U1 V1 W1 6 wires out of motor, Star

connected U2, V2, W2 to be interconnected separely (optional terminal block)

No. PE Earth connection

No. N

(L2)L1(L1) (L3)

NL1

No. 95 Earth connection

No. N

(L2)L1(L1) (L3)

L2 L1 L3

No. 95 Earth connection

No. 91 92 93 Mains voltage 3 x 380-480 V

L1 L2 L3

No. 95 Earth connection

Mains voltage 1 x 220-240 V

Mains voltage 3 x 220-240 V

NB!:

Please check that the mains voltage fits the mains voltage of the frequency converter, which can be seen from the nameplate.

See Technical data for correct dimensioning of cable cross-section.

All types of three-phase asynchronous standard motors can be connected to a frequency converter. Normally, small motors are star-connected (230/400

/ Y). Large motors are delta-connected (400/690

/ Y). The correct connection mode and voltage

V, can be read from the motor nameplate.

NB!:

In motors without phase insulation paper, an LC filter should be fitted on the output of the frequency converter.

MG.28.E9.02 - VLT is a registered Danfoss trademark

■RFI switch

ains supply isolated from earth:

M If the frequency converter is supplied from an isolated mains source ( IT mains) or TT/TN-S mains with grounded leg, the RFI switch is recommended to be turned off (OFF). For further reference, see IEC 364-3. In case optimum EMC performance is needed, parallel motors are c onnected or the motor cable length is above 25 m, it is recommended to set the switch in ON position. In OFF position, the internal RFI capacities (filter capacitors) between the chassis and the intermediate circuit are cut off to avoid damage to the intermediate circuit and to reduce the earth capacity currents (according to IEC 61800-3). Please also refer to the application note VLT on IT mains, MN.90.CX.02. It is important to use isolation monitors that are capable for use together with power electronics (IEC 61557-8).

VLT®2800 Series

■Direction of motor rotation

The factory setting is for clockwise rotation with the frequency converter transformer output connected as follows:

Terminal 96 connected to U-phase.

Terminal 97 connected to V-phase.

Terminal 98 conne cted to W-phase.

The direction of rotation can be c hanged by switching two phases on the motor terminals.

Installation

NB!:

The RFI switch is not to be operated with mains connected to the unit. Check that the mains supply has been disconnected

before operating the RFI switch.

NB!:

The RFI switch disconnects the capacitors galvanically from ground.

The switch Mk9, placed next to terminal 96, should be removed to disconnect the RFI-filter. The RFI switch is only available on VLT 2880-2882.

■Parallel connection of motors

The frequency converter is a ble to control several motors connected in parallel. If the m otors are to have different rpm values, use motors with different rated rpm values. Motor rpm is changed simultaneously, which means that the ratio between the rated rpm values is maintained across the range. The total current consumption of the motors is not to exceed the maximum rated output current

for the frequency converter.

INV

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Problems may arise at the start and at low rpm values if the motor sizes are widely different. This

is because the small motors’ relat ively high ohmic

resistance in the stator calls for a higher voltage at the start and at low rpm values.

In systems with motors connected in parallel, the electronic thermal rela y (ETR) of the frequency converter cannot be used as motor protection for the individual motor. For this reason further motor protection must be used, e.g. thermistors in each motor or an individual thermal relay. (Circuit breakers are not suitable as protection).

NB!:

Parameter 107 Automatic motor adaption, AMT cannot be used when motors are connected

in parallel. Parameter 101 Torque characteristic must be set to Special motor characteristics [8] when motors are connected in parallel.

■Motor cables

See Technical data for correct dimensioning of motor cable cross-section and length. Always comply with national and local regulations on cable cross-section.

NB!:

If an unscreened/unarmoured cable is used,

some EMC requirements are not complied with,

see EMC test results in the Design Guide.

If the EMC specifications regarding emission are to be complied with, the motor cable must be screened/armoured, unless otherwise stated for the RFI filter in question. It is important to keep the motor cable as short as possible so as to reduce the noise level and leakage currents to a minimum. The motor cable screen must be connected to the metal cabinet of the frequency converter and to the metal cabinet of the motor. The screen connections are to be made with the biggest possible surface area (cable clamp). This is enabled by different installation devices in different frequency converters. Mounting with twisted screen ends (pigtails) is to be avoided, since these spoil the screening effect at high frequencies. If it is necessary to break the screen to install a motor isolator or motor relay, the screen must be cont inued at the lowest possible HF impedance.

protection has been set for ETR T rip and parameter 105 Motor current, I

has been programmed to

M, N

the rated motor current (see motor nameplate).

■Brake connection

No. 81 82 Brake resistor

R- R+ terminals

The connection cable to the brake resistor must be screened/armoured. C onnect the screen to the metal cabinet of the frequency c

onverter and to the metal cabinet of the brake resistor by means of cable clamps. Dimension the cross-section of the brake cable to match the bra

See the Design Guide fo

ke torque.

r dimensioning

of brake resistors.

NB!:

Please note that voltages up to 850 V DC occur on the te

rminals.

■Earth connection

As leak current to the earth is higher than 3.5 mA, the frequency conve

rter must always be earthed according to prevailing national and local regulations. To guarantee that the earth cable has a good mechanical connection must be at least 10 mm

to terminal 95, the cable cross section

or 2 rated earth wires that are terminated separately. To increase safety you can i

nstall an RCD (Residual Current Device), which guarantees that the frequency converter trips when leak current becomes too high. See also

pplication Note MN.90.GX.02.

RCD A

■Motor thermal protection

The electronic thermal relay in UL-approved frequency converters has received the UL-approval for single motor protection, when parameter 128 Motor thermal

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Load sharing

Load sharing provides the facility to connect several

frequency converters’ DC intermediate circuits.

This requires that the installation is extended using extra fuses and AC coils (see drawing below). For load sharing parameter 400 Brake function must be set to Load sharing [5].

Note that voltage le vels of up to 850 V DC may occur between terminals 88 and 89.

■Tightening Torque, Power Terminals

Power and earth terminals must be tightened with the following torques:

VLT Terminals Torque [Nm]

Power mains brake 0.5-0.62803-

2875

Earth 2-3 Power mains brake 1.2-1.52880-

2882

Earth 2-3

Use 6.3 mm Fa ston Plugs for DC (Load Sharing). Contact Danfoss or see instructions no. MI.50.NX.02 for further information.

No. 88 89 Loadsharing

Installation

NB!:

This application is only for lift ing/low ering without a counterbalance.

■Access to control terminals

All terminals to the control cables are located underneath the protective plate on the front of the frequency converter. Remove the protective plate by pulling it downwards (see drawing).

■Control of mechanical brake

In lifting/low ering applications you need to be able to control an electromagnetic brake. The brake is controlled using a relay output or digital output (terminal 46). The output must be kept closed (voltage-free) for the period of time during which the

frequency converter is not able to ’support’ the m otor,

for example due to the load being too great. Select Mechanical brake control in parameter 323 or 341 for applications with an electromagnetic brake. When the output frequency exceeds the brake cut out value set in par. 138, the brake is released if the motor current exceeds the preset value i n parameter 140. The brake is engaged when the output frequency is less than the brake engaging frequency, which is set in par. 139. If the frequency converter is placed at alarm status or in an overvoltage situation the mechanical brake is cut in immediately.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Electrical installation, control cables Control cables must be screened/armoured. The

screen must be connected to the frequency converter chassis by m eans of a clamp. N ormally, the screen must also be connected to the chassis of the controlling unit (use the instructions for the unit in question). In connection with very long control cables and analogue signals, in rare cases depending on the i nstallation, 50/60 Hz earth l oops may occur because of noise transmitted from mains supply cables. In this connection, it may be necessary to break the screen and possibly insert a 100 nF capacitor between the screen and the chassis.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Tightening torques, control cables

Control wires must be connec ted with a tightening torque of 0.22-0.25 Nm.

■Electrical installation, control terminals

See section entitled Earthing of screened/armoured control cables in the Design Guide for the correct

termination of control cables.

No. Function 01-03 Relay outputs 01-03 can be used for

indicating status and alarms/warnings. 12 24 V DC voltage supply. 18-33 Digital inputs. 20, 55 Common frame for input

and o utput terminals. 42 Analog ou tp ut for displaying frequency,

reference, current or torque.

Digital output for displaying status,

warnings or alarms, as well as

frequency output. 50 +10 V DC supply

voltage for potentiometer or thermistor. 53 Analogue voltage input 0 - 10 V DC. 60 Analogue current input 0/4 - 20 mA.

+5VDCsupplyvoltage

to Profibus. 68,

69 70

RS 485, Serial communication.

1 1

Frame for terminals 67, 68 and 69.

Normally this terminal is not to be used.

NB!:

Please note that the cable jacket for the relay must cover the first row of control

card terminals - otherwise the galvanic isolation (PELV) cannot be maintained. Max. cable diameter: 4 mm. See drawing.

■Switches 1-4

The dip sw itch is only on the control card with Profibus DP communication. The switch position shown is the factory setting.

Installation

Switches 1 and 2 are used as cable termination for the RS 485 interface. If the frequency converter is located as the first or last unit in the bus system, switches 1 and 2 must be ON. On the remaining frequency converters, switches 1 and 2 must be OFF. Switches 3 and 4 are not applied.

■VLT Software Dialog

Connection to terminals 68-70 or Sub D:

-PIN3GND

- PIN 8 P-RS 485

-PIN9N-RS485

1. The terminals are not valid for DeviceNet. See the DeviceNet manual, MG.90.BX.YY for further details.

■Relay connection

See parameter 323 Relay output for programming of relay output.

Nr. 01 - 02 1 - 2 make (normally open)

01 - 03 1-3break(normallyclosed)

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Sub D plug

An LCP 2 control unit can be connected to the Sub D plug on the control card. Ordering number: 175N0131. LCP control unit with ordering number 175Z0401 is not to be connected.

■Connection examples

■Start/stop

Start/stop using terminal 18 and coasting stop using terminal 27.

Par. 302 Digital input = Start [7] Par. 304 Digital input = Coasting stop inverted [2]

For Precise start/stop the following settings are made:

Par. 302 Digital input = Precise start/stop [27] Par. 304 Digital input = Coasting stop inverted [2]

VLT®2800 Series

■Speed up/down

Speed up/down using terminals 29/33.

Par. 302 Digital input = Start [7] Par. 303 Digital input = Freeze reference [14] Par. 305 Digital input = Speed up [16] Par. 307 Digital input = Speed down [17]

■Potentiometer reference

Voltage reference via a potentiometer.

■Pulse start/stop

Pulse start using terminal 18 and pulse stop using terminal 19. In addition, the jog frequency is act ivated via terminal 29.

Par. 302 Digital input = Pulse start [8] Par. 303 Digital input = Stop inverted [6] Par. 304 Digital input = Coasting stop inverted [2] Par. 305 Digital input = Jog [13]

Par. 308 Analog input = Reference [1] Par. 309 Terminal 53, min. scaling =0Volt Par. 310 Terminal 53, ma x. scaling =10Volt

■Connection of a 2-wire transmitter

Connection of a 2-wire transmitter as feedback to terminal 60.

Par. 314 Analog input = Feedback [2] Par. 315 Terminal 60, min. scaling =4mA Par. 316 Terminal 60, max. scaling =20mA

■4-20 mA reference

4-20 mA reference on terminal 60 and speed feedback signal on terminal 53.

MG.28.E9.02 - VLT is a registered Danfoss trademark

Par. 100 Configuration = Speedclosedloop[1] Par. 308 Analog input = Feedback [2] Par. 309 Terminal 53, min. scaling =0Volt Par. 310 Terminal 53, max. scaling =10Volt Par. 314 Analog input = Reference [1] Par. 309 Terminal 60, min. scaling =4mA Par. 310 Temina l 60, max. scaling =20mA

■ 50 Hz anti-clockwise to 50 H z clockwise

VLT®2800 Series

Par. 304 Digital input = Coasting stop inverted [2] Par. 308 Analogue input = Reference [1] Par. 309 Terminal 53, min. scaling =0Volt Par. 310 Terminal 53, ma x. scaling =10Volt

■Preset references

Switch betwee n 8 preset references via two digital inputs and Setup 1 and Setup 2.

Par. 004 Active Setup = Multisetup 1 [5] Par. 204 Min. reference =0Hz Par. 205 Max. reference =50Hz Par. 302 Digital input = Start [7] Par. 303 Digital input = Choice of S etup, lsb [31] Par. 304 Digital input = Coasting stop inverted [2] Par. 305 Digital input = Preset ref., lsb [22] Par. 307 Digital input = Preset ref., msb [23]

Installation

Par. 100 Configuration = Speed regulat ion open loop [0] Par. 200 Output frequency range = Both directions, 0-1 32 Hz [1]

Par. 203 Reference range = Min. ref. - Max. ref. [0] Par. 204 Min. reference =-50Hz Par. 205 Max. reference =50Hz Par. 302 Digital input = Start [7]

Setup 1 contains the following preset references:

Par. 215 Preset reference 1 = 5.00% Par. 216 Preset reference 2 = 10.00% Par. 217 Preset reference 3 = 25.00% Par. 218 Preset reference 4 = 35.00%

Setup 2 contains the following preset references:

Par. 215 Preset reference 1 = 40.00% Par. 216 Preset reference 2 = 50.00% Par. 217 Preset reference 3 = 70.00% Par. 218 Preset reference 4 = 100.00%

MG.28.E9.02 - VLT is a registered Danfoss trademark

This table shows what the output frequency is:

VLT®2800 Series

Preset

ref., msb

Preset

ref., lsb

Selection

of Setup 0 0 0 2.5 0 1 0 5 1 0 0 10 1 1 0 17.5 0 0 1 20 0 1 1 25 1 0 1 35 1 1 1 50

■Connection of mechanical brake

Use of the relay for 230V AC brake

Output

frequency[Hz]

Par. 307 Digital input = Pulse input [30] Par. 343 Precise stop function = Counter stop with reset [1] Par. 344 Counter value = 100000

■Use of internal PID-controller - closed

loop process control

1. Connect the frequency converter to mains and motor cables as usual.

2. Connect transmitter (feedback signal) to + terminal 12 and - terminal 60 (applies to 2-wire transmitters 4-20 mA). (Connect transmitters with 0-10 V DC to + terminal 53 and - terminal 55).

NB!:

Connect terminal 55 as - and terminal 60 as + for current signal (0/4-20 mA) and terminal 53-55 for voltage signal (0-10 V DC) if

transmitters with separate voltage supply are used.

Par. 302 Digital input = Start [7] Par. 304 Digital input = Coasting stop inverted [2] Par. 323 Relay output = Mechanical

brake control [25]

Mechanical brake control [25] = ’0’ => Brake is closed. Mechanical brake control [25] = ’1’ => The

brake is open. See more detailed parameter settings under Control of mechanical brake .

NB!:

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

■Counter stop via terminal 33

The start signal (terminal 18) must be active, i.e. logical

’1’, until the output 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 c onverter.

3. Connect the start signal between terminal 12 and 18, 12-27 must be connected or set to no function (parameter 304 = 0).

4. Set all parameters in the Quick Menu and enter the Main Menu (to enter the Main M e nu: Press Quick Menu and + simultaneously).

5. Set the following parameters:

100 = Process controller closed loop [3] 101 = Variable torque medium [3] If used with centrifugal pumps and fans. 308 = Feedback [2] (for 0-10 V DC transmitters) o 314 = Feedback [2] (for 4-20 mA transmitters) 414 = Minimum feedback scaling, must be set to the minimum feedback v alue 415 = Maximum feedback scaling, must be set to the maximum feedback value Example: Pressure transmitter 0-10 bar: 414 = 0 and 415 = 10 416 = Process units: As shown on the local control panel (example: bar [4]) 437 = Normal [0]: The output frequency should be reduced when the feedback signal increases Inverse [1]: The output frequency should increase when the feedback signal increases 440 = Proportional gain (P-gain) 0.3-1.0 (experienced value)

MG.28.E9.02 - VLT is a registered Danfoss trademark

441 = Integration time (I-time) 3-10 sec. (experienced value) 442 = Differentiation time (D-time) 0-10 sec. (experienced value) 205=Max. referenceistobesetequalto parameter 415 (example: 10 bar) 215 = Preset reference 1. Set the preset reference to the wanted min. reference value (example: 5 bar) (Parameter 205 and 215 are shown in the process unit chosen in parameter 416) . The value in brackets [ ] are data values corresponding to the wanted function. Example: Parameter 308 Feedback signal = [2] If the motor is supposed to always run at a minimum speed, a such can be selected in parameter 204 = output frequency low limit. (For pump works it is typically 15-20 Hz). With the above connections and settings all normal pump and fan applications will work properly. In certain cases it might be necessary to opt imize the PID-controllerr (parameter 440, 441 and 442) beyond the mentioned experienced values.

VLT®2800 Series

Installation

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Operation & Display

001 Language

(LANGUAGE)

Value:

✭English (ENGLISH)

German (DEUTSCH) French (FRANCAIS) Danish (DANSK) Spanish (ESPANOL) Italian (ITALIANO)

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.

002 Local/remote operation

(OPERATION SITE)

Value:

✭Remote operation (REMOTE)

Local operation (LOCAL)

Function:

There is a choice of two different modes of operation of the frequency converter; Remote operation [0] or

Local operation [1]. See also parameter 013 Local control if Local operation [1] is selected.

Description of choice:

If Re mote operation [0] is selected, the frequency converter is controlled via:

1. the control terminals or via serial communication.

2. the [START] key. This cannot, however, override stop commands transmitted via the digital inputs or via serial communicat i on.

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

If Local operation [1], is selected, the frequency converter is controlled via:

1. the [START] key. This cannot, however, override stop commands via the digital inputs (see parameter 013 Local control).

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 Local reversing, and that pa rame ter 013 Local control

is set at Local control and open loop [1] or Local

control as parameter 100 [3]. Parameter 200 Output frequency range is se t at Both directions.

4. parameter 003 Local reference where the reference can be set using the [+] and [-] keys.

[0] [1] [2] [3] [4] [5]

5. an external control command that ca n be connected to the digital inputs (see parameter 013 Local control).

NB!:

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

003 Local reference

(LOCAL REFERENCE)

Value:

Par. 013 Local control must be set to [1] or [2]:

0-f

MAX

Par. 013 Local control must be set to [3] or [4].

Ref

MIN

[0] [1]

Function:

In this pa rame ter, the local reference can be set manually. The unit of the local reference depends on the configuration selected in parameter 100 Configuration.

Description of choice:

In order to protect the local reference, parameter 002 Local/remote operation must be set to Local operation [1]. Local reference cannot be set via serial communicat ion.

■Setup configuration

There is a choice of four Setups (parameter Setups) , which can be programmed independently of one another. The active Setup can be selected in parameter 004 Active Setup. WhenanLCP2control unit is connected, the active Setup number will be appear in the display under "Setup". It is also possible to preset the frequency converter to Multisetup,sothat it is possible to shift Setups using the digital inputs or serial communication. Setup shift can be used in a plant in which, for example, one Setup is used for daytime operation and another one at night time. In parameter 006 Setup copying it is p ossible to copy from one Setup to another. Using parameter 007 LCP copy all Setups can be transferred from one frequency converter to another by moving the

(par. 202)

-Ref

MAX

(par. 204-205)

✭ 50 Hz

✭ 0,0

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

LCP 2 control panel. First all parameter values are copied to the LCP 2 control panel, which can then be moved to a nother frequency converter. Here all parameter values can be copied from the LCP 2 control unit to the frequency converter.

■Setup shift

- Selection of Setup via terminals 29 and 33.

Par. 305 Digital input = Selection of Se tup, lsb [31] Par. 307 Digital input = Selection of Setup, msb [32] Par. 004 Active setup = Multi Setup [5]

004 Active Setup

(ACTIVE SETUP)

Value:

Factory Setup (FACTORY SETUP)

✭Setup 1 (SETUP 1)

Setup 2 (SETUP 2) Setup 3 (SETUP 3) Setup 4 (SETUP 4) Multi Setup (MULTI SETUP)

Function:

The active parameter Setup is selected here. All parameters can be programmed in four individual parameter S etups. Shifts between Setups can be made in this parameter via a digital input or via serial communication.

Description of choice:

Factory Setup [0] contains the factory-set param eter values. Setup 1-4 [1]-[4] are four individual Setups which can be selected as required. Multi Setup [5] is used where remote-controlled shifts between the four Setups via a digital i n p ut or via serial co mmunication is required.

005 Programming S etup

(EDIT SETUP)

Value:

Factory Setup (FACTORY SETUP) Setup 1 (SETUP 1)

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

[0] [1] [2] [3] [4] [5]

[0] [1]

Setup 2 (SETUP 2) Setup 3 (SETUP 3) Setup 4 (SETUP 4)

✭Active Setup (ACTIVE SETUP)

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 2 [2], while the act ive Se tu p is set to Setup 1 [1] in parameter 004 Active Setup .

Description of choice:

Factory Setup [0] contains the factory-set data and can be used as a source o f data if the other Setups are to be reset to a known status. Setup 1-4 [1]-[4] are individual Setups that can be programmed freely d uring operation. If Active Setup [5] is selected, the programming Setup will be e qual to parameter 004 Active Setup.

NB!:

If data is modified or copied to the active Setup, the modifications have an immediate

effect on the unit’soperation.

006 Setup copying

(SETUP COPY)

Value:

✭No copying (NO COPY)

Copy to Setup 1 from # (COPY TO SETUP 1) Copy to Setup 2 from # (COPY TO SETUP 2) Copy to Setup 3 from # (COPY TO SETUP 3) Copy to Setup 4 from # (COPY TO SETUP 4) Copy to all Setups from # (COPY TO ALL)

Function:

You can copy from the selected active Setup in parameter 005 Programming setup to the selected Setup or Setups in this parameter.

NB!:

Copying is only possible in Stop ( motor stopped in connect ion with a stop command).

Description of choice:

Copying begins when the required copying function has been selected and the [OK]/[CHANGE DATA]

[2] [3] [4] [5]

Programming

[0]

[1]

[2]

[3]

[4] [5]

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

key has been pushed. The display indicates when copying is in progress.

007 LCP copy

(LCP COPY)

Value:

✭No copying (NO COPY)

Upload all parameters (UPL. ALL PAR.) Download all parameters (DWNL. ALL PAR.) Download size-independent parameters (DWNL.OUTPIND.PAR.)

Function:

Parameter 007 LCP copy is used if you want to use

the LCP 2 control pa nel’s integral copy function. The

function is used if you want to copy all parameter setups from one frequency converter to another by moving the LCP 2 control panel.

Description of choice:

Select Upload all parameters [1] if you want all parameter values to be transferred to the control panel. Select Download all parameters [2] if all parameter values transferred are to be copied to the frequency converter to which the control panel is attached. Select Download size-independent par. [3] if you only wa nt to d ownl oad e the size-independent parameters. This is used when downloading to a frequency converter with a different rated power size than that from which the parameter setup originates.

NB!:

Upload/download can only be performed in stop mode. Download can o

performed to a frequency converter with the same software version number, see parameter 626 Database identification no.

008 Display scaling of output frequency

(FREQUENCY SCALE)

Value:

0.01 - 100.00

Function:

In this parameter, the factor is selected by wh ich the output frequency is to be multiplied. The value is shown in the display, provided parameters 009-012 Disp readout have been set to Ou tput frequency x scaling [5].

nly be

✭ 1.00

lay

[0] [1] [2]

[3]

009 Large display readout

(DISPLAY LINE 2)

Value:

No readout (NONE) Resulting reference [%] (REFERENCE [%]) Resulting reference [unit] (REFERENCE [UNIT]) Feedback [unit] (FEEDBACK [UNIT])

✭Frequency [Hz] ( FREQUENCY [HZ])

Output frequency x scaling (FREQUENCY X SCALE) Motor current [A] (MOTOR CURRENT [A]) Torque [%] (TO RQU E [%] ) Power [kW] (POWER [KW]) Power [HP] (POWER [HP][US]) Motor voltage [V] (MOTOR VOLTAGE [V]) DC link voltage [V] (DC LINK VOLTAGE [V]) Thermal load motor [%] (MOTOR THERMAL [%]) Thermal load [%] (FC. THERMAL[%]) Running hours [Hours] (RUNNING HOURS]) Digital input [Bin] (DIGITAL INPUT[BIN]) Analog input 53 [V] (ANALOG INPUT 53 [V]) Analog input 60 [mA] (ANALOG INPUT 60 [MA]) Pulse reference [Hz] (PULSE REF. [HZ]) External reference [%] (EXTERNAL REF. [%]) Status word [Hex] (STATUS WORD [HEX]) Heatsink temperature [°C] (HEATSINK TEMP [°C]) Alarm word [Hex] (ALARM WORD [HEX]) Control word [Hex] (CONTROL WORD [HEX]) Warning word [Hex] (WARNING WORD [HEX]) Extended status word [Hex] (EXT. STATUS [HEX]) Communication option card warning (COMM OPT WARN [HEX]) Pulse count (PULSE COUNTER)

[0]

[1]

[2] [3] [4]

[5] [6] [7] [8] [9]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[19]

[20]

[21] [22]

[25] [26] [27]

[28]

[29]

[30]

[31]

Description of choice:

Set the required scaling factor.

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

Function:

In this parameter you can select the data value that you wis h to display in th e L C P 2 control unit display

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

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 Display readout you can select a further three data values, whicharedisplayedindisplayline1.

Description of choice:

No readout can only be selected in parameters 010-012 Small display readout.

Resulting reference [%] gives, as a percentage, the resulting reference in the range from Minimum reference, Ref

to Maximum reference, Ref

MIN

MAX

Reference [unit] gives the resulting reference with unit Hz in Open loop.InClosed loop the reference unit is selected in parameter 416 Process units.

Feedback [unit] gives the resulting signal value using the unit/scaling selected in parameter 414

Minimum feedback, FB FB

and 416 Process units.

HIGH

, 415 Maximum feedback,

LOW

Frequency [Hz] gives the output frequency of

the frequency converter.

Output frequency x scaling [-] equals the present output frequency f

multiplied by the factor set in

parameter 008 Display scaling of output frequency .

Motor current [A] gives the phase current of the motor measured as an effective value.

Torque [%] denotes the motor’s present load in relation to the motor’s rated torque.

Power [kW] gives the present power that the motor is absorbing in kW.

Power [HP] gives the present power that the motor is absorbing in HP.

Digital input [Binary code] gives the signal status from the 5 digital inputs (18, 19, 27, 29 and 33). Terminal 18 corresponds to the bit on the extreme

left. ‘0’ = no signal, ‘1’ = signal connected.

Analog input 53 [V] gives the voltage value of terminal 53.

Analog input 60 [mA] gives the present value of terminal 60.

Pulse reference [Hz] gives the reference in Hz connected to terminal 33.

External reference [%] gives the sum of external references as a percentage (sum of analogue/pulse/serial communica t ion) in the range from Minimum reference, Ref Maximum reference, Ref

MAX

MIN

Status word [Hex] gives one or several status conditions in a Hex code. See Serial communic ation in the Design Guide for further information.

Heatsink temp.[°C] gives the present heatsink temperature of the frequency converter. The cut-out limit is 90-100°C, while cutting back in occurs at 70 ± 5°C.

Alarm word [Hex] gives one or several alarms in hex code. See Serial communication in the

Design Guide for further information.

Control word [Hex] gives the control w ord for the

frequency converter. See Serial communication in the Design Guide for further information.

Warning word [Hex] gives one or several warnings in hex code. See Serial communication in the Design Guide for further information.

Programming

Motor voltage[V] gives the voltage supplied to the motor.

Extended status word [H ex] gives one or several status modes in Hex code. See Serial communication in

DC link voltage [V] gives the intermediate circuit

the Design Guide for further information.

voltage of the frequency converter.

Communication option card warning [Hex] gives a

Thermal load motor [%] gives the calculated/estimated

load on the motor. 100 % is the cut-out limit.

warning word if there is a fault in the communication bus. Only act ive if communication options are installed. If there a re no communication options 0

Thermal load [%] gives the calculated/estimated

Hex is displayed.

thermal load on the frequency converter. 100 % is the cut-out limit.

Pulse count gives the number of pulses that the unit has registered.

Running hours [Hours] gives the number of hours that the motor has tun since the last reset in parameter 619 Reset of running hours counter.

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

010 Small display line 1.1

(DISPLAY LINE 1.1)

Value:

See par. 009 Large display readout

✭ Analog input 53 [V] [17]

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 react ions to reference changes. The display readout is activated by pushing the [DISPLAY STATUS] key.

Description of choice:

See parameter 009 Large display readout.

011 Small display readout 1.2

(DISPLAY LINE 1.2)

Value:

See parameter 009 Large display readout

✭ Motor current [A][6]

Function:

See the functional desc ription given under parameter 010 Small display readout.

Description of choice:

See parameter 009 Large display readout.

012 Small display readout 1.3

(DISPLAY LINE 1.3)

Value:

See parameter 009 Large display readout

✭ Feedback [unit] [3]

(LOC CTRL/OPEN LOOP) Remote-operated control and open loop

without slip compensation

(LOC+DIG CTRL) Local control as parameter 100 (LOC CTRL/AS P 100)

✭Remote-operated control as parameter 100

(LOC+DIG CTRL/AS P100)

Function:

This is where the required function is selected if, in parameter 002 Local/remote operation, Local operation [1] has been chosen.

Description of choice:

If Local not active [0] is selected, it is not possible to set a reference via parameter 003 Local reference. In order to enable a shift to Local not active [0], parameter 002 Local/remote operation must be set to Remote operation [0].

Local control and open loop [1] is used if the motor speed is to be set via parameter 003 Local reference. When this choice is made , parameter 100 Configuration automatically shifts to Speed regulation, open loop [0].

Remote-operated control and open loop [2] functions in the same way as Local control and open loop [1]; however, the frequency converter can also be controlled via the digital inputs.

Local c ontrol as parameter 100 [3] is used when the motor speed is to be set via parameter 003 Local reference,butw

Configuration automatically shifting to Speed regulation, open loop [0].

Remote-operated control as parameter 100 [4] works the same way as Local control as parameter 100 [3]; however, the frequency converter can also

be controlled via the digital inputs.

ithout parameter 100

[1]

[2]

[3]

[4]

Function:

See the functional desc ription given under parameter 010 Small display readout.

Description of choice:

See parameter 009 Large display readout.

013 Local control

(LOC CTRL/CONFIG.)

Value:

Local not active (DISABLE) Local control and open loop without slip

compensation

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

[0]

Shifting from Remote operation to Local operation in parameter 002 Local/remote operation, while this parameter has been set to Remote-operated control and open loop [1]: The present motor frequency direction of ro tation will b e maintained. If the present direction of rotation does not respond to the reversing signal (negative reference), the referenc

Shifting from Local operation to Remot in parameter 002 Local/remote control, while this parameter has been set to Remote-operated control and open loop [1]: The config selected in parameter 100 Configuration will be active. The shift will be smooth.

MG.28.E9.02 - VLT is a registered Danfoss trademark

and

ewillbesetto0.

eoperation

uration

VLT®2800 Series

Shifting from Remote control to Local control in parameter 002 Local/remote operation,whilethis parameter has been set to Remote-operated control as parameter 100 [4]: the present reference will be maintained. If the reference signal is negative, thelocalreferencewillbesetto0.

Shifting from Local operation to Remote operation in parameter 002 Local/remote operation, while this parameter has been set to Remote operation: The local reference will be replaced by the remote-operated reference signal.

014 Local stop

(LOCAL STOP)

Value:

Not active (DISABLE)

✭Active (ENABLE)

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:

If Not active [0] is selected in this parameter, the [STOP]-key will be inactive.

NB!:

If Not active [0] is selected, the motor cannot

be stopped by means of the [STOP]-key.

[0] [1]

016 Local reversing

(LOCAL REVERSING)

Value:

✭Not active (DISABLE)

Active (ENABLE)

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 Local/remote operation is set to Local operation [1] and parameter 013

Localcontrol to Local control, open loop [1] or Local control as parameter 100 [3].

Description of choice:

If Disable [0] is selected in this parameter, the [FWD/REV] key will be disabled. See also parameter 200 Output frequency range.

017 Local reset of trip

(LOCAL RESET)

Value:

Not active (DISABLE)

✭Active (ENABLE)

Function:

In this parameter, the reset function on the control panel can be engaged/disengaged.

Description of choice:

If Not active [0] is selected in this parameter, the reset funct ion will be inactive.

[0] [1]

Programming

015 Local jog

(LOCAL JOGGING)

Value:

✭Not active (DISABLE)

Active (ENABLE)

Function:

In this parameter, the jog function on the LCP control panel can be engaged/disengaged.

Description of choice:

If Not active [0] is selected in this parameter, the [JOG]-key will be inactive.

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

[0] [1]

NB!:

Select Not active [0], only if an external reset signal has been connected via the digital inputs.

018 Lock for data changes

(DATA CHANGE LOCK)

Value:

✭Not locked (NOT LOCKED)

Locked (LOCKED)

Function:

In th is p a r a m e ter, it is possib l e t o ’lock’ the controls

to disable data changes via the control keys.

Description of choice:

If Locked [1] is selected, data changes in the parameters cannot be made; however, it will stillbepossibletomakedatachangesviaserial

[0] [1]

VLT®2800 Series

communication. Parameter 009-012 Display readout can be changed via the control panel.

019 Operating mode at power-up, local

operation

(POWER UP ACTION)

Value:

Auto restart, use saved referenc e (AUTO RESTART)

✭Forced stop, use saved reference

(LOCAL=STOP) Forced stop, set ref. to 0 (LOCAL=STOP, REF=0)

Function:

Setting of the required operating mode when the mains voltage is engaged. This function can only be active if Local operation [1] has been selected in parameter 002 Local/remote operation.

Description of choice:

Auto restart, use saved ref. [0] is selected if the frequency converter is to start using the local reference (set in parameter 003 Local reference)andthe start/stop state given via the control keys immediately prior to the mains voltage being cut out. Forced stop, use saved ref. [1] is selected if the frequency converter is to remain stopped when the mains voltage is engaged, until the [START]-key is activated. After a start command the motor speed is ramped up to the saved refe rence in parameter 003 Local reference. Forced stop, set ref. to 0 [2] is selected if the frequency converter is to remain stopped when the mains voltage is cut back in. Parameter 003 Local reference is to be zeroed.

NB!:

In remote operation (parameter 002

Local/remote operation) the start/stop state

at the time of mains connection will depend on the external control signals. If Pulse start [8] is selected in parameter 302 Digital input,themotor will remain stopped after mains connection.

020 Hand operation

(HAND OPERATION)

Value:

✭Not active (DISABLE)

Active (ENABLE)

[0]

[1]

[2]

[0] [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 converter is controlled by external signals whe reas the frequency converter in Hand mode is controlled via a local reference directly from the control unit.

Description of choice:

If Not active [0] is selected in this parameter, the Hand mode function will be inactive. If Act ive [1] is selected you can switch between Auto- and Hand mode. For further information, see the Control Unit section.

024 Userdefined Quick Menu

(USER QUICKMENU)

Value:

✭Not active (DISABLE)

Active (ENABLE)

Function:

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 Quick Menu setup the user can select up to 20 parameters for the Quick Menu key.

Description of choice:

If not active [0] is selected, the standard setup of the Quick Menu key is active. If Active [1] is selected, the user-defined Quick Menu is active.

025 Quick M enu setup

(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 User-defined Quick Menu is set to Active [1]´. 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 Order form.

✭ 000

[0] [1]

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

Description of choice:

The Quick Menu is set up as follows:

1. Select parameter 025 Quick Menu setup

and press [CHANGE 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 [< >] y ou 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 parameter 100 Configuration.

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 Configuration is selected at Index 1, Quick Menu will start with this parameter every time Quick M enu is activated.

VLT®2800 Series

Please note that parameter 024 User-defined Quick Menu and parameter 025 Quick Menu setup are

reset to the factory setting during initialisation.

Programming

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Load and Motor

■Configuration

Selection of configuration and torque characteristics has an effect on which parameters can be seen in the display. If Open loop [0] is selected, 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 application.

100 Configuration

(CONFIGURATION)

Value:

✭Speed control, open loop

(SPEED OPEN LOOP) Speed control, closed loop (SPEED CLOSED LOOP) Process control, closed loop (PROCESS CLOSED LOOP)

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).

[0]

[1]

[3]

101 Torque characteristic

(TORQUE CHARACT)

Value:

✭Constant torque

(CONSTANT TORQUE) Variable torque low (TORQUE: LOW ) Variable torque medium (TORQUE: MED) Variable torque high (TORQUE: HIGH) Variable torque low with CT start (VT LOW CT START) Variable torque medium with CT start (VT MED CT START) Variable torque high with CT start (VTHIGHCTSTART) Special motor mode (SPECIAL MOTOR M ODE)

CT = C onstant 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. S ee par. 135 U/f ratio.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

Description of choice:

If Speed control, open loop [0] is selected, normal speed control is obtained (without feedback signal) with automatic load and slip compensation to ensure a constant speed at varying loads. Compensations are active, but may be disabled in parameter 134 Load compensation and parame ter 136 Slip compensation as required.

If Speed control, closed loop [1] is selected, better speed accuracy is obtained. A feedback signal must be added, and the PID regulator must be set in parameter group 400 Special functions.

If Process control, closed loop [3] is selected, the internal process regulator is activated to enabl 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 sign must be added from the process and the process regulator must be set in parameter group 400 Special functions. Process closed loop is not ac DeviceNet card is mounted and Instance 20/70 or 21/71 is chosen in pa rameter 904 Instance types.

eprecise

tive if a

Description of choice:

If Constant torque [1] is selected, a load-dependent U /f characteristic is obtained, in which output voltage and output frequency are increased at increasing loads in order to maintain constant magnetization of the motor.

Select Variable torque low [2], Variable torque medium [3] or Variable torque high [4], if the load is square (centrifugal pumps, fans).

Variable torque - low with CT start [5], -mediumwith CT start [6] or high with CT start [7], are selected if

you need a greater breakaway torque than can be achieved with the three first characteristics.

NB!:

Load and slip compensation are not active if variable torque or special motor mode have been selected.

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Description of choice:

Select a value that corresponds to the nameplate data on the motor, regardless of the frequency

converter’s mains voltage.

Select Special motor mode [8], if a special U/f setting is needed that is to be adapted to the present motor. The break points are set in parameters 423-428 Voltage/frequency .

NB!:

Pleasenotethatifavaluesetinthenameplate

parameters 102-106 is changed, there will

be an automatic change of parameter 108 Stator resistance and 109 Stator reactance.

102 Motor power P

M,N

(MOTOR POWER)

Value:

0.25 - 22 kW

✭ Depends on unit

Function:

Here you must set a power value [kW] P

M,N

corresponding to the motor’s rated power. The

factory sets a rated power value [kW] P

M,N

that depends on the type of unit.

Description of choice:

Set a value that matches the nameplate data on the motor. Sett ings between one size below and one size over the factory setting are possible.

103 Motor voltage U

M,N

(MOTOR VOLTAGE)

Value:

For 200 V units: 50 - 999 V

For 400 V units: 50 - 999 V

✭ 230 V

✭ 400 V

Function:

This is where to set the rated motor voltage U

foreitherstarYordelta .

M,N

104 Motor frequency f

M,N

(MOTOR FREQUENCY)

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

(MOTOR CURRENT)

Value:

0,01 - I

MAX

✭ Depends on choice of motor

Function:

The nominal, rated current of the motor I

M,N

forms part of the frequency converter calculat ion of features such as torque and motor thermal protection.

Description of choice:

Setavaluethatcorrespondstothenameplate data on the motor. Set the motor current

taking into account whether the motor is

M,N

star-connected Y or delta-connected

106 Rated motor speed

(MOTOR NOM. SPEED)

Value:

100 - f

✭ Depends on p arameter 104 Motor frequency, f

x 60 (max. 60000 rpm)

M,N

Function:

This is where to set the value that corresponds to the rated motor speed n

that can be

M,N

seen from the nameplate data.

Description of choice:

Select a value that corresponds to the nameplate data on the motor.

Programming

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

NB!:

The max. value equals f

M,N

x 60. f

set in parameter 104 Motor frequency, f

M,N

to be

M,N

107 Automatic motor tuning, AMT

(AUTO MOTOR TUN.)

Value:

✭Optimisation off (AMT OFF)

Optimisation on (AMT START)

Function:

NB!:

AMT is not possible on VLT 2880-82.

Automatic m otor tuning is an algorithm that measures stator resistance R

without the motor axle turning.

This means that the motor is not delivering any torque. AMT can be used with benefit when initialising units where the user wishes to optimise adjustment of the frequency converter to the motor being used. This is used in particular when the factory setting does not sufficiently cover the m otor.

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

.Asa

rule, however, this is not critical.

AMT is performed as follows:

tart AMT:

1. Give a STOP signal.

2. Parameter 107 Automatic motor tuning is se t at value [2] Optimisation on.

3. A START signal is given and parameter 107 Automatic motor tuning is r eset to [ 0 ] when AMT has been completed.

[0] [2]

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 ab l e to measure

values for motors that are 1-2 times larger or

the R

smaller than the frequency converter’snominalsize.

- 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.

he procedure for AMT controlled from the SLCP:

T See section entitled Control unit.

Description of choice:

Select Optimisation on [2] if you want the frequency converter to p erform automatic motor tuning.

108 Stator resistance R

(STATOR RESISTAN)

Value:

0.000 - X.XXX

✭ Depends on choice of motor

Function:

After setting of parameters 102-106 Nameplate data, a number of adjustments of various parameters is carried out automatically, including stator resistance

. A manually entered RSmust apply to a cold

motor. The shaft performance can be improved by fine-tuning R

and XS, see procedure below.

NB!:

Parameters 108 Stator resistance R Stator reactance X

are normally not to be

and 109

changed if nameplate data has been set.

omplete AMT:

C AMT is completed by giving a RESET signal.

Description of choice:

can be set as follows:

Parameter 108 Stator resistance, Rs is updated with the optimised value.

1. Use the factory settings of R frequency converter itself chooses on the basis

nterrupting AMT:

I 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

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

of the motor nameplate data.

2. The value is stated by the motor supplier.

3. The v alue is obtained through manual measurements: R theresistanceR terminals. Where R

can be calculated b y measuring

PHASE-PHASE

Ohms (typical for motors > 5.5 kW, 400 V), a special

MG.28.E9.02 - VLT is a registered Danfoss trademark

which the

between two phase

is lo w e r t h a n 1-2

VLT®2800 Series

Ohm-meter should be used ( Thomson-bridge or

similar). R

4. R

=0.5xR

is set automatically when AMT has

PHASE-PHASE

been completed. See p arameter 107

Auto motor adaption.

109 Stator reactance X

(STATOR REACTANCE)

Value:

0.00 - X,XX

✭ Depends on choice of motor

Function:

After setting of parameters 102-106 Nameplate data, a number of adjustments of various parameters are made automatically, including stator reactance

. The shaft performance can be improved by

fine-tuning R

and XS, see proce dure 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 obtained by connecting a

motor to mains and m easuring the phase-phase voltage U

and the idle current .

XL: See parame ter 142.

3. Use the factory settings of X

which the

frequency converter itself chooses on the basis of the motor nameplate data.

117 Resonance damping

(RESONANCE DAMPING)

Value:

OFF - 100%

✭OFF %

[OFF - 100]

[OFF]

Function:

It is possible to optimise the resonance damping in CT mode. The grade of the influence is adjusted in this parameter. The value may be set between 0% (OFF) and 100%. 100% corresponds to 50% reduction of U/F ratio. Default value is OFF.

Internal settings (fixed): The resonance filter is active from 10% of nominal speed and above. In this case 5Hz and above. Speed to go from 0 to nominal flux level: 500ms

Speed to go from nominal to 0 flux level: 500ms

Description of functionality: The filter monitors the active motor current and changes the motor voltage according to the figure below. The filter reacts on levels referring to the nominal motor current.

If the active motor current is below 10%, the motor voltage will be decreased by the speed mentioned above until the voltage reaches the setting for Par. 117. If the active motor current comes over 20% the voltage will be increased by the above mentioned speed. If the active motor current reaches 40% the motor voltage will be increased immediately to normal motor voltage. The reduction in motor voltage depends on the parameter 117 setting.

Description of choice:

Set the grade of Motor current [Imact] influ

ence on the U/F ratio between 0% (OFF) and 100%. 100% corresponds to 50% reduction of U/F ratio. Default value is OFF.

119 High start torque

(HIGH START TORQ.)

Value:

0.0 - 0.5 sec.

✭ 0.0 sec.

Function:

To ensure a high start torque approx. 1.8 x I

INV.

can be

permitted for max. 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.

Programming

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Description of choice:

Set the necessary time for which a high start torque is required.

120 Start delay

(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 bee n fulfilled. When the time has passed, the output frequency will start by ramping up to the reference.

Description of choice:

Set the necessary time before commencing to accelerate.

121 Start function

(START FUNCTION)

Value:

DC hold during start delay time (DC HOLD/DELAY TIME) DC brake during start delay time (DC BRAKE/DELAY TIME)

✭Coasting during start delay time

(COAST/DELAY TIME) Start frequency/voltage clockwise (CLOCKWISE OPERATION) Start frequency/voltage in reference direction (VERTICAL OPERATION)

✭ 0.0 sec.

[0]

[1]

[2]

[3]

[4]

Start frequency and 131 Voltage at start during start delay time. Regardless of the value assumed by the reference signal, the output frequency equals the setting in parameter 130 Start frequency 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 particular in applications in which a cone anchor motor is applied, where the direction of rotation is to start clockwise followed by the reference direction.

Select Start frequency/voltage in reference direction [4] to obtain the function described in parameter 130 Start frequency and 131 Voltage at 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 v oltage w ill correspond to the setting in parameter 131 Voltageatstart. If the reference signal is different from zero, the output frequency will equal parameter 130 Start frequency and the output voltage will equal parameter 131 Voltage at start.This functionality 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 Start frequency and parameter 131 Voltage at start.

122 Function at stop

(FUNCTION AT STOP)

Value:

✭Coasting ( COAST)

DC hold (DC HOLD)

[0] [1]

Function:

This is w here to choose the required mode during the start delay time (parameter 120 Start dela y 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 frequency converter during the start delay time (inverter turned off).

Choose Start frequency/voltage clockwise [3] to obtain the function described in parameter 130

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

Function:

This is where to choose the function of the freque converter after the output frequency has become lower than the value in parameter 123 The min.

frequency for activation of function at stop

a stop command 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 DC hold voltage is to be activated.

MG.28.E9.02 - VLT is a registered Danfoss trademark

ncy

or after

VLT®2800 Series

123 Min. frequency for activation of

function at stop

(MIN.F.FUNC.STOP)

Value:

0,1 - 10 Hz

✭ 0,1 Hz

Function:

In this parameter, the output frequency is set at which the function selected in parameter 122 Function at stop is to be activated.

Description of choice:

Set the required output frequency.

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 parame ter 123 without ramping up. This may cause an overcurrent warning / alarm.

■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 DC brake voltage DC brake voltage can be preset from 0-100%. Max. DC brake voltage depends on the motor data selected. In parameter 126 DC braking time DC braking time is determined and in parameter 127 DC brake cut-in frequency the frequency at which DC braking becomes active is selected. If a digital input is programmed to DC

braking inverse [5] and shifts from logic ’1’ to logic ’0’,

DC braking will be activated. When a stop command becomes active, DC braking is activated when the output frequency is less than the brake cut-in frequency.

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.

126 DC brake time

(DC BRAKING TIME)

Value:

0-60sec.

✭ 10 sec

Function:

In this parameter, the DC brake time is set at which parameter 132 DC brake voltage is to be active.

Description of choice:

Set the required time.

127 DC brake cut-in frequency

(DC BRAKE CUT-IN)

Value:

0.0 (OFF) - par. 202

Output frequency high limit, f

MAX

✭ OFF

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

(MOT.THERM PROTEC)

Value:

✭No protection (NO PROTECTION)

Thermistor warning (THERMISTOR WARN) Thermistor trip (THERMISTOR TRIP) ETR warning 1 (ETR WARNING 1) ETR trip 1 (ETR TRIP 1) ETR warning 2 (ETR WARNING 2) ETR trip 2 (ETR TRIP 2) ETR warning 3 (ETR WARNING 3) ETR trip 3 (ETR TRIP 3) ETR warning 4 (ETR WARNING 4) ETR trip 4 (ETR TRIP 4)

Function:

The frequency converter can monitor the motor temperature in two different ways:

Programming

[0]

[1] [2] [3] [4] [5] [6] [7] [8] [9]

[10]

- Via a PTC thermistor that is mounted on the motor. The thermistor is connected between terminal 50 (+10V) and one of the digital input terminals 18, 19, 27 or 29. See parameter 300 Digital inputs.

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

- Thermal load calculation (ETR - Electronic Thermal Relay), based on present load and time. This is compared with the rated motor current I

and rated motor frequency f

M,N

The calculations take into account the ne ed for

lower loading at low speeds due to the motor’s

internal ventilation being reduced.

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.

Description of choice:

Select No protection [0] if you do not want a warning or trip when a motor is overloaded. Select Thermistor warning [1] if you want a warning when the connected thermistor becomes too hot. Select Thermistor trip [2] if you want a trip when

the connected thermistor becomes too hot. Select ETR warning 1-4 if you want a warning when the motor is overloaded according to the calcul

ations. You can also programme the frequency converter to give a warning signal via one of the digital outputs. Select ETR Trip 1-4 if you want a trip whe

nthemotor

is overloaded according to the calculations.

NB!:

This function cannot protect the individual motors in the case of motors linked i

n parallel.

(boost) at start to disengage the mechanical brake. To achieve this parameters 130 Start frequency and 131 Initial voltage are used.

Description of choice:

Set the required start frequency. It is a precondition that parameter 121 Start function,issetto

Start frequency/voltage clockwise [3] or Start frequency voltage in reference direction [4] and

that in parameter 120 Start delay atimeisset and a reference signal is present.

NB!:

If parameter 123 is set higher than parameter 130, the start delay function (parameter 120 and 121) will be skipped.

131 Initial voltage

(INITIAL VOLTAGE)

Value:

0.0 - 200.0 V

✭ 0.0 V

Function:

Initial voltage is active for the t ime set in parameter 120 Start delay , after 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 Start function,issettoStart frequency/voltage

clockwise [3] or Start frequency/voltage in reference direction [4] a nd that in parameter 120 Start delay a

time is set, and that a reference signal is present.

132 DC brake voltage

(DC BRAKE VOLTAGE)

Value:

0 - 100% of max. DC brake voltage

✭ 0%

130 Start frequency

(START FREQUENCY)

Value:

0.0 - 10.0 Hz

✭ 0.0 Hz

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 DC brake cut-in frequency is reached, or if DC braking inverse isactiveviaadigital input or via serial communication. Subsequently,

Function:

Thestartfrequencyisactiveforthetimesetin

the DC brake voltage will be active for the time set in parameter 126 DC brake time.

parameter 120 Start delay, after a start command.

The output frequency will ’jump’ tothenextpreset

frequency. Certain motors, such as conical anchor motors, need an extra voltage/start frequency

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Description of choice:

To be set as a percentage value of the max. DC brake voltage, which depends on the motor.

133 Start voltage

(START VOLTAGE)

Value:

0.00 - 100.00 V

✭ Depends on unit

Function:

A higher s tart torque can be obtained by increasing the start voltage. Sma ll m otors ( < 1.0 kW) normally require a high start voltage.

Description of choice:

If the factory setting is not adequate, load compensation must be set to enable the motor tostartatthegivenload.

Warning: Should be set to 0% in connection with synchronous and

parallel-coupled motors and in the case of quick load changes. Too h igh load compensation may lead to instability.

135 U/f-ratio

(U/F RATIO)

Value:

0.00 - 20.00 at Hz

✭ Depends on unit

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 of Constant torque [1] parameter 101 Torque characteristic.

Description of choice:

The factory setting will be suitable for must applications, the value may need to be increase gradually for high torque application.

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

(LOAD COMPENSATIO)

Value:

0.0 - 300 .0%

✭ 100.0%

Function:

In this parameter, the load characteristic is set. By increasing the load compensation, the motor is g

iven an extra voltage and frequency supplement at increasing loads. This is used e.g. in motors/applications in which there is a big difference between th

e full-load

current and idle-load current of the motor.

NB!:

If this value is set too high, the frequency converter may cut out because of overcu

rrent.

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

(SLIP COMP.)

Value:

-500 - +500% of rated slip compensation

✭ 100%

Function:

Slip compensation is calculated automatically, on the b asis of such data as the rated motor speed

. In this parameter, the slip compensation can be

M,N

fine-tuned, thereby compensating for tolerances on the value for n

. Slip compensation is only active if

M,N

a selection has been made of Speedregulat ion, open

loop [0] in parameter 100 Configuration and Constant torque [1] in parameter 101 Torque c haracteristic.

Description of choice:

Key in a % value.

Programming

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

137 DC hold voltage

(DC HOLD VOLTAGE)

Value:

0 - 100% of max. DC hold voltage

✭ 0%

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 DC hold in parameter 121 Start function or 122 Function at stop . To be set as a percentage value of the max. DC hold voltage, which depends on the choice of motor.

138 Brake cut out value

(BRAKE CUT OUT)

Value:

0.5 - 132.0/1000.0 Hz

✭ 3.0 Hz

Function:

Here you can select the frequency at which the external brake is released, via the output defined in parameter 323 Relay output 1-3 or 341 Digital output, terminal 46.

Description of choice:

Set the required frequency.

140 Current, minimum value

(CURRENT MIN VAL)

Value:

0 % - 100 % of inverter output current

✭ 0%

Function:

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.

Description of choice:

This is an extra safety precaution, aimed at guaranteeing that the load is not lost during start of a lifting/lowering operation.

142 Leakage reactance X

(LEAK. REACTANCE)

Value:

0.000 - XXX,XXX

✭ Depends on choice of motor

is sum of rotor and stator leakage reactance.

Function:

After setting of parameters 102-106 Nameplate data, a number of adjustments of various parameter is made automatically, including the leakage reactance

. The shaft performance can be improved by

fine-tuning the leakage reactance X

139 Brake cut in frequency

(BRAKE CUT IN)

Value:

0.5 - 132.0/1000.0 Hz

✭ 3.0 Hz

Function:

Here you can select the frequency at which the external brake is activated; this takes place via the output defined in parameter 323 Relay output 1-3 or 341 Digital output terminal 46.

Description of choice:

Set the required frequency.

NB!:

Parameter 142 The leakage reactance X normally not to be changed if the nameplate data have been set, parameters 102-106.

Description of choice:

can be set as follows:

1. The value is stated by the motor supplier.

2. Use the factory settings of X

which the

frequency converter itself chooses on the basis of the motor nameplate data.

143 Internal fan control

(FAN CONTROL)

Value:

✭Automatic (AUTOMATIC)

Always switched on (ALWAYS ON) Always switched off (ALWAYS OFF)

[0] [1] [2]

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Function:

This parameter can be set so that the internal fan is automatically switched on and off. You can also set the internal fa n to be permanently switched on or off.

Description of choice:

If Automatic [0] is selected, the internal fan is switched on or off depending on the ambient temperature and the loading of the frequency converter. If Always switched on [1] Always switched off [2] are selected, the internal fan will be permanently switched on or off.

NB!:

If Always switched off [2] is selected in combinationwithhighswitchfrequency, long motor cables or high output power, the

frequency converter’s life span is reduced.

144 Gain AC brake

(GAIN AC BRAKE)

Value:

1.00 - 1.50

✭ 1.30

Function:

When the voltage vector is reset it is set to the same starting point each time a n ew 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.

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.

NB!:

If the value in par. 144 is increased, the motor current will simultaneously increase

significantly when generator loads are applied. The parameter should therefore only be changed if it is guaranteed during measurement that the motor current in all operating situations w ill never exceed the maximum permitted current in the motor. Ple that the current c

146 Reset voltage vector

(RESET VECTOR)

Value:

*Off (OFF) Reset (RESET)

annot be read out from the display.

ase note:

[0] [1]

Programming

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■References & Limits

200 Output frequency range

(OUT FREQ. RNG/ROT)

Value:

✭Only clockwise, 0 - 132 Hz

(132 HZ CLOCKWISE) Both directions, 0 - 132 Hz (132 HZ BOTH DIRECT) Anti-clockwise only, 0 - 132 Hz (132 HZ COUNTER CLOCK) Clockwise only, 0 - 1000 Hz (1000 HZ CLOCK WISE) Both directions, 0 - 1000 Hz (1000 HZ BOTH DIRECT) Anti-clockwise only, 0 - 1 000 Hz (1000 HZ COUNTER CLOCK)

Function:

This parameter guarantees protection against unwanted reversing. Furthermore, the maximum output frequency can be selected that is to apply regardless of the settings of other parameters. This parameter has no function if Process regulat ion, closed loop has been selected in parameter 100 Configuration.

Description of choice:

Select the required direction of rotation as well as the maximum output frequency. Please note that if Clockwise only [0]/[3] or Anti-clockwise only [2]/[5] is selected, the output frequency will be limited to the range f

MIN-fMAX

.IfBoth directions [1]/[4] is selected,

the output frequency will be limited to the range ± f

(the minimum frequency is of no significance).

MAX

[0]

[1]

[2]

[3]

[4]

[5]

201 Output frequency low limit, f

MIN

(MIN OUTPUT FREQ)

Value:

0.0 - f

MAX

✭ 0.0 Hz

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. If Both directions has been selected in parameter 200 Output frequency 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 parameter 202 Output

frequency high limit, f

202 Output frequency high limit, f

MAX

(MAX. OUTPUT FREQ)

Value:

- 132/1000 Hz ( par. 200 Output frequency range)

MIN

✭ 132 Hz

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.

NB!:

The output frequency of the frequency converter can never assume a value higher than 1/10 of the switching frequency

(parameter 411 Switching frequency).

Description of choice:

A value can be selected from f in parameter 200 Output frequency range.

■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 Reference and parameter 214 Reference function define how the handling of references can be performed. The parameters mentioned can be active in both closed and open loop.

Remote controlled references are defined as:

- External references, such as analogue inputs 53 and 60, pulse references via terminal 33 and references from serial communicat ion.

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

to the value chosen

MIN

VLT®2800 Series

- 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 be shown as one unit by selecting Reference [unit]. The sum of the external references can be shown on

the LCP control unit’sdisplayasa%oftheareafrom

Minimum reference, Ref

. Select External reference, % [25] in parameters

MAX

to Maximum reference, Ref

MIN

009-012 Display readout if a readout is desired.

It is possible to have both references and external references simultaneously. In parameter 214

Reference function a selection can be made to determine how preset references should be added to the external references.

There is also an independent local reference in parameter 003 Local reference,inwhichthe resulting reference is set using the [+/-] keys. When the local reference has been selected, the output frequency range is limited by parameter 201 Output frequency low limit, f 202 Output frequency high limit, f

and parameter

MIN

MAX

The local reference unit depen ds on the selection in parameter 100 Configuration.

Programming

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

203 Reference range

(REFERENCE RANGE)

Value:

✭Min. reference - Max reference (MIN - MAX)

-Max. reference - Max. reference (-MAX - +MAX)

Function:

In this parameter you select whether the reference signal must be positive or whether it can be both positive and negative. The minimum limit may be a negative value, unless in parameter 100 Configuration a selection has been made of Speed regulation, closed loop. You should select Min ref. - Max. ref. [0], if Process regulation, closed loop [3] has been selected in parameter 100 Configuration.

Description of choice:

Select the required range.

204 Minimum reference, Ref

MIN

(MIN.REFERENCE)

Value:

Par. 100 Config. = Open loop [0].

-100,000.000 - par. 205 Ref

MAX

✭ 0.000 Hz

[0]

[1]

205 Maximum reference, Ref

MAX

(MAX.REFERENCE)

Value:

Par. 100 Config. = O pen loop [0]. Par. 204 Ref

- 1000.000 Hz

MIN

✭ 50.000 Hz

Par. 100 Config. = Closed loop [1]/[3]. Par. 204 Ref

- Par. 415 Max. feedback

MIN

✭ 50.000 rpm/par 416

Function:

The maximum reference gives the highest value that can be assumed by the sum of all references. If Closed loop [1]/[3] is selected in parameter 100 Configuration the maximum reference cannot e xceed the value in para me ter 415 Maximum feedback. Maximum reference is ignored if the local reference is active.

The reference unit can be defined from the following table:

Par. 100 Configuration Unit Open loop [0] Hz Speedreg,closedloop[1] rpm Process reg, closed loop [3] Par. 416

Par. 100 Config. = Closed loop [1]/[3].

-Par. 414 Minimum feedback - par. 205 Ref

MAX

✭ 0.000 rpm/par 416

Function:

Minimum reference is an expression of the minimum possiblevalueofthetotalofallreferences. Ifin parameter 100 Configuration, Speed regulation, closed loop [1] or Process regulation, closed loop [3] is selected, the minimum reference is limited by parameter 414 Minimum feedback. Minimum reference is ignored if the local reference is active.

The reference unit can be defined from the following table:

Par. 100 Configuration Unit Open loop [0] Hz Speed reg, c losed 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.

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

(RAMP TYPE)

Value:

✭Linear (LINEAR)

Sin shaped (SIN SHAPED)

shaped (S-SHAPED 2)

Sin

Function:

You can choose between a linear, an S-shaped and an S

ramp process.

Description of choice:

Select the required ramp type depending on the required acceleration/deceleration p roce ss.

[0] [1] [2]

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

207 Ramp-up time 1

(RAMP-UP TIME 1)

Value:

0.02 - 3600.00 sec

✭ 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:

The ramp-up time is the acceleration time from 0 Hz to the rated motor frequency f 104 Motor frequency, f

). It is assumed that the

M,N

(parameter

M,N

output current will not reach the current limit (set in parameter 221 Current limit I

LIM

VLT®2800 Series

Description of choice:

Set the required ramp-down time.

209 Ramp-up time 2

(RAMPUPTIME2)

Value:

0.02 - 3600.00 sec.

Function:

See description of parameter 207 Ramp-up time 1.

Description of choice:

Set the required ramp-up time. Shift from ramp 1 to ramp 2 by activating Ramp 2 viaadigitalinput.

210 Ramp-down time 2

(RAMPDOWNTIME2)

Value:

0.02 - 3600.00 sec.

✭ 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

✭ 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Description of choice:

Set the required ramp-up time.

208 Ramp-down time 1

(RAMPDOWNTIME1)

Value:

0.02 - 3600.00 sec

✭ 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:

The ramp-down time is the deceleration time from the rated motor frequency f 104 Motor frequency, f

)to0Hz,provided

M,N

(parameter

M,N

no overvoltage arises in the inverter because of generating operation of the motor.

Function:

See description of parameter 208 Ramp-down time 1.

Description of choice:

Set the required ramp-down time. Shift from ramp 1 to ramp 2 by activating Ramp 2 via a digital input.

211 Jog ramp time

(JOG RAMP TIME)

Value:

0.02 - 3600.00 sec.

✭ 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

Function:

The jog ramp time is the acceleration/deceleration time from 0 Hz to the rated motor frequency f (parameter 104 Motor frequency, f

). It is assumed

M,N

that the output current will not reach the current limit(setinparameter221Current limit I

LIM

Programming

✭

= factory setting. () = display text [] = value for use in communication via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

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.

Description of choice:

Set the required ramp time.

VLT®2800 Series

Description of choice:

Set the required frequency.

■Reference function

The example shows how the resulting reference is calculated when Preset references is used together with Sum and Relative in parameter 214 Reference function. The formula for the calculation of the resulting reference can b e seen in the section entitled All about the VLT 2800.Seealsothe drawing in Handling of references.

Thefollowingparametersarepreset:

Par. 204 Minimum reference 10 Hz Par. 205 Maximum reference 50 Hz Par. 215 Preset reference 15 % Par. 308 Term. 53, Analogue input Reference Par. 309 Term. 53, min. scaling 0V Par. 310 Term. 53, max. scaling 10 V

212 Quick-stop ramp-down time

(Q STOP RAMP 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

Current limit I

the digital inputs or the serial communication.

Description of choice:

Set the required ramp-down time.

213 Jog frequency

(JOG FREQUENCY)

Value:

0.0 - Par. 202 Output frequency high limit, f

Function:

Jog frequency f that the frequency 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.

. Quick-stop is activated via one of

LIM

JOG

✭ 3.00 sec (VLT 2803-2875)

10.00 sec (VLT 2880-2882)

MAX

✭ 10.0 Hz

means a fixed output frequency

When parameter 214 Reference funct ion is se t to Sum [0] one of the preset Preset references(par. 215-218) is added to the external references 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 Reference function =Sum[0]:

Par. 204 Minimum reference 10.0 Hz Reference contribution a t 4 Volt 16.0 Hz Par. 215 Preset reference 6.0 Hz Resulting reference 32.0 Hz

When parameter 214 Reference function is se t to Relative [1] the defined 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 analogue input voltage of 4 Volt the resulting reference will be:

Par. 214 Reference function =Relative[1]:

Par. 204 Minimum reference 10.0 Hz Reference effect at 4 Volt 16.0 Hz Par. 215 Preset reference 2.4 Hz Resulting reference 28.4 Hz

The graph shows the resulting reference in relat ion to the external reference, which varies from 0-10 Volt. Parameter 214 Reference function is programmed to Sum [0] and Relative [1] respectively. Also shown is a graph in which parameter 215 Preset reference 1 is programmed to 0 %.

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

214 Reference function

(REF FUNC TIO N)

Value:

✭Sum (SU M)

Relati ve (RELATIVE) External/preset (EXTERNAL/PRESET)

Function:

It is possible to define how preset references are to be added to the other references; for this purpose, use Sum or Relative.Itisalsopossiblebyusingthe External/preset to select whether a shift between external references and preset references is required. External reference is the sum of the analogue references, pulse references and any references from serial communication.

Description of choice:

If Sum [0] is selected, one of the adjusted preset references (parameters 215-218 Preset reference) is summarized as a percentage of the reference range (Ref

MIN

-Ref

MAX

), added to the other external references. If Relative [1] is selected, one of the added preset references (parameters 215-218 Preset reference) is summarized as a percentage of the sum of present external references. If 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 references will always be active. If the preset referenc es are to be without influence,

they must be set to 0% (factory setting).

[0] [1] [2]

VLT®2800 Series

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% 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

MIN

-Ref

) or as a percentage

MAX

of the other external references, depending on the choice made in parameter 214 Reference function. The choice between preset references can be made via the digital inputs or via serial communicat ion.

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

Description of choice:

Set the preset reference(s) that is/are to be the options.

219 Catch up/ Slow down reference

(CATCH UP/SLW DWN)

Value:

0.00 - 100% of the given reference

Function:

In this parameter, the percentage value can be set which will either be added to or d educted from the remote-controlled references. The remote-controlled reference is the sum of preset references, analogue references, pulse reference and any references from serial communication.

Description of choice:

If 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-controlled referenc e. If Slow down is active via a digital input, the percentage value in parameter 219 Catch up/Slow down reference will be deducted from the remote-controlled reference.

✭ 0.00%

Programming

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

221 Current limit, I

LIM

(CURRENT LIMIT)

Value:

0 - XXX.X % of par. 105

✭ 160 %

Function:

In this parameter, the maximum output current I

LIM

is set. The factory-set value corresponds to the maximum output current I

. If the current limit

MAX

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,

), the frequency converter can only handle a load

INV.

intermittently, i.e. for short period s at a t im e. After the load has been higher than I for a period the load is lower than I if the current limit is set at a lower value than I

, it must be ensured that

INV.

Please note that

INV.

,the

acceleration torque will be reduced to the same extent.

Description of choice:

Set the required maximum output current I

223 Warning: Low current, I

LOW

LIM

(WARN. CURRENT LO)

Value:

0.0 - par. 224 Warning: High current, I

HIGH

✭ 0.0 A

Function:

If the output current falls below the preset limit I

a warning is given.

LOW

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.

224 Warning: High current, I

HIGH

(WARN. CURRENT HI)

Value:

0-I

MAX

✭ I

MAX

Function:

If the output current exceeds the preset limit I

a warning is given.

HIGH

Parameters 223-228 Warning functions do not work 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 output current’s upper signal limit I

HIGH

must

be programmed within the frequency converter’s

normal operating range. See drawing at parameter 223 Warning: Low current, I

LOW

Description of choice:

The lower signal limit of the output current I

LOW

must be programmed within the normal working range of the frequency converter.

225 Warning: Low frequency, f

(WARN.FREQ. LOW)

Value:

0.0 - par. 226

Warn.: High frequency, f

Function:

If the output frequency falls below the preset limit f

,awarningisgiven.

LOW

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

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

HIGH

LOW

✭ 0.0 Hz

VLT®2800 Series

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

LOW

must be programmed within the normal operating range of the frequency converter. See drawing at parameter 223 Warning: Low current, I

226 Warning: High frequency f

HIGH

LOW

(WARN.FREQ.HIGH)

Value:

Par. 200 Frequency range = 0-132 Hz [0]/[1]. par. 225 f

LOW

- 132 Hz

✭ 132.0 Hz

Par. 200 Frequency range = 0-1000 Hz [2]/[3]. par. 225 f

LOW

- 1000 Hz

✭ 132.0 Hz

Function:

If the output frequency exceeds the preset limit f

a warning is given.

HIGH

Description of choice:

The output frequency’s upper signal limit f

HIGH

must

be programmed within the frequency converter’s

normal operating range. See drawing at parameter 223 Warning: Low current, I

LOW

and via the relay output.The unit for feedback in Closed loop is programmed in parameter 416 Process units.

Description of choice:

Set the required value within the feedback range (parameter 414 Minimum feedback, FB 415 Maximum feedback, FB

MAX

228 Warning: High feedback, FB

MIN

HIGH

and

(WARN.FEEDB HIGH)

Value:

Par. 227 Warn.: FB

- 100,00 0.000

LOW

✭ 4000.000

Function:

If the feedback signal gets above the preset limit FB

,awarningisgiven.

HIGH

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 feedback in Closed loop is programmed in parameter 416 Process units.

Description of choice:

Set the required value within the feedback range (parameter 414 Minimum feedback, FB 415 Maximum feedback, FB

MAX

MIN

and

229 Frequence bypass, bandwidth

(FREQ BYPASS B.W.)

Value:

0 (O FF) - 100 Hz

✭ 0Hz

Programming

227 Warning: Low feedback, FB

(WARN.FEEDB. LOW)

Value:

-100,000.000 - par. 228 Warn.:FB

LOW

✭ -4000.000

HIGH

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

Function:

If the feedback signal falls below the preset limit FB

,awarningisgiven.

LOW

programmed. In this parameter a bandwidth can be defined on either side of these frequencies.

Description of choice:

The frequency set in this parameter will be centered around parameters 230 Frequency bypass 1 and 231 Frequency bypass 2.

reached the resulting reference.The signal outputs can be programmed to g ive a warning signal via terminal 46

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

230 Frequency bypass 1 (FREQ. BYPASS 1) 231 Frequency bypass 2 (FREQ. BYPASS 2)

Value:

0 - 1000 Hz

Function:

Some systems call for some output frequencies to be avoided b e cause of mechanical resonance problems in the system.

Description of choice:

Enter the frequencies to be avoided. See also parameter 229 Frequency bypass, bandwidth.

✭ 0.0 Hz

VLT®2800 Series

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

■Inputs and outputs

VLT®2800 Series

Digital inputs Term. no. 18

27 29 33

par. no. 302 303 304 305 307

Value:

No function (NO OPERATION) [0] [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 inv erse (RESET AND COAST INV.) [3] [3] ✭[3] [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) ✭[7] [7] [7] [7] [7]

Pulse start (LATCHED START) [8] [8] [8] [8] [8]

Reversing (REVERSING) [9] ✭[9] [9] [9] [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] ✭[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] Thermistor ( THERMISTOR) [25] [25] [25] [25] Precise stop, inverse (PRECISE STOP INV.) [26] [26] Precise start/stop (PRECISE START/STOP) [27] [27] Pulse reference (PULSE REFERENCE) [28] Pulse feedback (PULSE FEEDBACK) [29] 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] Pulse counter start (PULSE COUNTER START) [34] [34]

1. All functions on terminal 18 and 19 are controlled by an interrupter, which means that the repetitive accuracy of the response tim e is constant. Can b e used for start/stop, setup switch and especially for changing digital preset, i.e. to obtain a reproducable stop point when using creep speed. For further information see VLT 2800 Precise Stop Instruction, MI.28.CX.02.

Programming

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

Function:

In these parameters 302-307 Digital inputs it is pos sible to choose between the different enabled functions related to the digital inputs (terminals 18-33).

Description of choice:

No operation is selected if the frequency converter is not to react to signals transmitted to the terminal.

Reset resets the frequency converter after an alarm; however, a few alarms cannot be reset (trip locked) without first disconnecting the mains supply and reconnecting it. See table under List of warnings and alarms. Reset is activated on the leading edge of the signal.

Coasting stop inverse is used for making the frequency converter "let go" of the motor immediately (output transistors are "turned off"), which means that the motor

runs freely to stop. Logic ’0’ leadstocoastingtostop.

Reset and coasting inverse are used to activate motor coast simultaneously with reset. Logical

’0’ means motor coast stop and reset. Reset

is activated on the falling edge.

Quick stop inverse is used for activating the quick-stop ramp down set in parameter 212 Quick stop

ramp-down time. Logic ’0’ leads to quick stop.

DC-braking inverse is used for stopping the motor by

energizing it with a DC voltage for a given t ime, see parameters 126, 127 and 132 DC brake. Please note that this funct ion is only active if the value i 126 DC braking time and 132 DC brake voltage is

different from 0. Logic ’0’ leads to DC braking. Stop inverse, a logic ’0’ means that the motor speed

is ramped down to stop via the selected

None of the stop commands mentioned above are to be used as repair switches.

Note tha t the frequency converter has more voltage inputs than L1, L2 and L3 terminals are used. Check that all voltage inputs are disconnected and that the presc ribed time (4 mins.) has passed before repair w

Start is selected if a start

Logic ’1’ = start, logic ’0’ =stop.

ork is commenced.

/stop command is required.

n parameter

ramp.

when the DC bus

VLT®2800 Series

Latched start, if a pulse is applied for min. 14 ms, the frequency converter will start the motor, provided no stop command has been given. The motor can be stopped by briefly activating Stop inverse.

Reversing is used for changing the direction of

rotation of the motor shaft. 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 Process

regulation, closed loop . See also parameter 200 Output frequency range/direction.

Reversing and start is used for start/stop and for

reversing with the same signal. No active start command is allowed at the same time. Acts as latch start reversing, provided latch start has been chosen for terminal 18. Is not active for Process

regulation, closed loop. See also parameter 200 Output frequency range/direction.

Start clockwise is used if you want the motor sha ft only

to be able to rotate clockwise when started notbeusedforProcess regulation, closed loop.

Start anticlockwise is used if you want the motor shaftonlytobeabletorotateanticlockwise when started. Should not be used for

regulation, closed loop. See also parameter 200 Output frequency range/direction.

Jog is used to override the output frequency to the jog frequency set in para frequency. Jog is active regardless of whether a start command has been given, yet not when Coast

stop, Quick-stop or DC bra

Freeze reference freeze

The reference can now only be changed via Speed up and Speed down.Iffreeze reference is active, it will be and in the event of m a ins failure.

s the present reference.

savedafterastopcommand

meter 213 Jog

king are active.

. S hould

Process

Freeze output freezes the present output frequency

(in Hz). The output frequency can now only be changed via Speed

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

up and Speed down .

VLT®2800 Series

NB!:

If Freeze output is active the frequency converter can only be stopped if you select Motor coast,

Quick stop or DC braking via a digital input.

Speed up and Speed down are selected if digital

control of the up/down speed is required. This function is only active if Freeze reference or Freeze output frequency has been selected. If Speed up is active the reference or output frequency will be increased, and if Speed down is active the reference or output frequency will be reduced. The output frequency is changed via the preset ramp times in parameters 209-210 Ramp 2.

One pulse (logic ’1’ minimum high for 14 ms

and a minimum break t ime of 14 ms) will lead to a speed change of 0.1 % (reference) or 0.1 Hz (output frequency). Example:

Term.29Term.33Freeze ref/

Function

freeze outp. 0 0 1 No speed change 0

1 1Speedup

0 1 Speed down

1 1 Speed down

Freeze reference can be changed even if the frequency converter has stopped. The reference will also be saved if the mains are disconnected.

Catch-up/Slow-down is selected if the reference value is to be increased or reduced by a programmable percentage value set in parameter 219 Catch-up/Slow-down reference .

Preset reference on is used for shifting between remote-controlled reference and preset reference. It is assumed that External/preset [2] has been selected in parameter 214 Reference function. Logic

’0’ = remote-controlled references are active, logic ’1’ = one of the four preset references is active,

as can be seen from the table above .

Thermistor is to be selected if a possibly integrated thermistor in the motor is to be able to stop the frequency converter if the motor overheats. 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 Parameter 128 Motor thermal protection must be programmed for Thermistor warning [1] or Thermistor trip [2] and the thermistor is to be connected between a digital input and terminal 50 (+ 10 V supply).

Programming

Slow-down Catch-up Function

0 0 Unchanged speed 0 1 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 and Preset reference, msb makes it possible to select one of the four preset references, see the table below:

Preset ref.

msb

0 0Presetref.1 0 1 1

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

1Increaseby%value 0Reduceby%value 1Reduceby%value

Preset ref.

Function

lsb

1Presetref.2 0Presetref.3 1Presetref.4

Precise stop, inverse is selected to obtain a high degree of accuracy when a stop command is repeated. A logic 0 means that th ramped down to stop via the selected ramp.

Precise start/stop is selected to obtain a high degree of accuracy when a start and stop command is repeated.

Pulse reference is selected if the reference signal applied is a pulse corresponds to parameter 204 Minimum reference,

. The frequency set in parameter 327 Pulse

Ref

MIN

reference/feedbac 205 Maximum reference Ref

Pulse feedback is selected if the feedback signal

used is a pulse train (frequency). In parameter

train (frequency). 0 Hz

k corresponds to parameter

e motor speed is

MAX

VLT®2800 Series

327 Pulse reference/feedback the maximum pulse feedback frequency is set.

Pulse input is selected if a specific number of pulses must lead to a Precise stop, see parameter 343

Precise stop and parameter 344 Counter value.

Selection of Setup, lsb and Selection of Setup, msb gives the possibility to select one of the

four setups. It is, however, a condition that parameter 004 is set to Multisetup.

Reset and start can be used as a start function. If 24 V are connected to the digital input, this will cause the frequency converter to reset and the motor will ramp up to the pre set reference.

Pulse counter start is used to start a counter stop sequence with a pulse signal. The pulse width must at least be 14 ms and not longer than the count period. See also parameter 343 and the instruction, MI28CXYY.

If this function is chosen, see Wobble Instruction MI28JXYY for further information.

309 Terminal 53 Min. scaling

(AI 53 SCALE LOW)

Value:

0.0 - 10.0 Volt

✭ 0.0 Volt

Function:

This parameter is used for setting the signal value that is to correspond to the minimum reference or the m inimum feedback, parameter 204 Minimum

reference, Ref

/ 414 Minimum feedback, FB

MIN

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 and 318 Function after time out), the value set must be higher than 1 Volt.

308 Terminal 53, analogue input voltage

(AI [V]53FUNCT.)

Value:

No function (NO OPERATION)

✭Reference (REFERENCE)

Feedback (FEEDBACK) Wobble (WOBB.DELTA FREQ [%])

[10]

Function:

In this para meter it is possible to select the function required to be connected to terminal 53. Scaling of the input signal is made in parameter 309 Terminal 53, min. scaling and parameter 310 Terminal 53, max. scaling.

Description of choice:

Feedback [2] on terminal 53. Wobble [10]

The delta frequency can be controlled by the analog input. If WOBB.DELTA FREQ is selected as analog input ( par. 308 or par. 314) the value selected in par. 702 equals 100 % analog input. Example: Analog input = 4-20 mA, Delta freq. par.

702 = 5 Hz → 4mA=0Hzand20mA=5Hz.

[0] [1] [2]

310 Terminal 53 Max. scaling

(AI 53 SCALE HIGH)

Value:

0 - 10.0 Volt

✭ 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

/ 414 Maximum feedback, FB

MAX

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

(AI [MA] 60 FUNCT)

Value:

No function (NO OPERATION) Reference (REFERENCE)

✭Feedback (FEEDBACK)

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 parameter

[0] [1] [2]

✭

= factory setting. () = display text [] = value for use in communication via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

315 Terminal 60, min. scaling and parameter 316 Terminal 60, max. scaling.

Description of choice:

No function [0]. Is selected if the frequency converter is not to react to signals connected to the terminal. Reference [1]. If this function is selected, the refe rence 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 Feedback [2] on terminal 60. Wobble [10] The delta frequency can be controlled by the analog input. If WOBB.DELTA FREQ is selected as analog input ( par. 308 or par. 314) the value selected in par. 702 equals 100 % analog input. Example: Analog input = 4-20 mA, Delta freq. par.

702 = 5 Hz → 4mA=0Hzand20mA=5Hz.

If this functi on is chosen, see Wobble Instruction MI28JXYY for further information.

Description of choice:

Set the required current value.

317 Time out

(LIVE ZERO TIME O)

Value:

1-99sec.

✭ 10 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 Function after time out will be activated. This function is only active if in parameter 309 Terminal 53, min. scaling a value higher than 1 Volt has bee n selected, or if in parameter 315 Terminal 60, min. scaling a value higher than 2 mA has been selected.

Description of choice:

Set the required time.

315 Terminal 60 Min. scaling

(AI 60 SCALE LOW)

Value:

0.0 - 20.0 mA

✭ 4.0 mA

Function:

In this parameter you can set the signal value that will correspond to the minimum reference or minimum feedback, parameter 204 Minimum reference,

/ 414 Minimum feedback, FB

Ref

MIN

Description of choice:

Set the required current value. If the Time out function is to be used (parameter 317 Time out and 318 Function after time out )thevalue set must be higher than 2 mA.

316 Terminal 60 Max. scaling

(AI 60 SCALE HIGH)

Value:

0.0 - 20.0 mA

✭ 20.0 mA

Function:

This parameter is used for setting the signal value that is to correspond to the maximum reference value, parameter 205 Maximum reference value, Ref

MAX

318 Function after time out

(LIVE ZERO FUNCT.)

Value:

✭No operation (NO OPERATION)

Freeze output frequency (FREEZE OUTPUT FREQ.) Stop (STOP) Jog (JOG) Max. speed (MAX SPEED) Stop and trip (STOP AND TRIP)

Function:

This parameter allows a choice of the function to be activated after the expiry of the Time out ( parameter 317 Time out ). If a time-out function occurs at the same time as a bus time-out function (parameter 513 Bus t ime interval function ), the time -out function in parameter 318 will be activated.

Description of choice:

The output frequency of the frequency converter can be:

- frozen at the present frequency [1]

-overruledtostop[2]

- overruled to jog frequency [3]

- overruled to max. output frequency [4]

[0]

[1]

Programming

[2] [3] [4] [5]

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

- overruled to stop with subsequent trip [5]

319 Analogue output terminal 42

(AO 42 FUNCTION)

Value:

No function (NO OPERATION) External reference min.-max. 0-20 mA (REF MIN-MAX = 0-20 MA) External reference min.-max. 4-20 mA (REF MIN-MAX = 4-20 MA) Feedback min.-max. 0-20 mA (FB MIN-MAX = 0-20 MA) Feedback min.-max. 4-20 mA (FB MIN-MAX = 4-20 MA) Output frequency 0-max 0-20 mA (0-FMAX = 0-20 MA) Output frequency 0-max 4-20 mA (0-FMAX = 4-20 MA)

✭Output current 0-I

INV

0-20 mA (0-IINV = 0-20 MA) Output current 0-I

IINV

4-20 mA (0-IINV = 4-20 MA) Output power 0-P

M,N

0-20 mA (0-PNOM = 0-20 M A) Output power 0-P

M,N

4-20 mA (0-PNOM = 4-20 M A) Inverter temperature 20-100 °C 0-20 mA (TEMP 20-100 C=0-20 MA) Inverter temperature 20-100 °C 4-20 mA (TEMP 20-100 C=4-20 MA)

[0]

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

An output signal is obtained, which is proportional to the feedback value in the interval Minimum feedback, FB

- Maximum feedback, FB

0-f

0-20 mA/4-20 mA.

MAX

(parameter 414/415).

MAX

MIN

An output signal is obtained, which is proportional to the output frequency in the interval 0 - f 202 Output frequency, high limit, f

0-I

0-20 mA/4-20 mA.

INV

MAX

(parameter

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 Motor power, P

M,N

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 e quipment connected may not exceed 500

Description of choice:

No function. Is selected if the analogue output is not to be used.

External Ref

MIN

-Ref

0-20 mA/4-20 mA.

MAX

An output signal is obtained, which is proportional to the resulting reference value in the interval Minimum reference, Ref Ref

✭

(parameters 204/205).

MAX

-FB

MIN

= factory setting. () = display text [] = value for use in communication via serial communication port

0-20 mA/ 4-20 mA.

MAX

- Maximum reference,

MIN

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Control word bit 11

0-Temp.

0-20 mA/4-20 mA.

MAX

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

(RELAY 1-3 FUNCT.)

Value:

No function (NO OPERATION)

✭Unit ready (UNIT READY)

Enable/no warning (ENABLE/NO WARNING) Running (RUNNING)

[0] [1] [2]

[3] Running in refe re nce, 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, pa r. 221 (CURRENT LIMIT) Alarm (ALARM) Output frequency higher than f

LOW

par. 225 (ABOVE FREQUENCY LOW) Output frequency lower than f

HIGH

par. 226 (BELOW FREQUENCY HIGH) Output current higher than I

LOW

par. 223 (ABOVE CURRENT LOW) Output current lower than I

HIGH

par. 224 (BELOW CURRENT HIGH) Feedback higher than FB

LOW

par. 227 (ABOVE FEEDBACK LOW) Feedback lower than FB

HIGH

par. 228 (UNDER FEEDBACK HIGH) Relay 123 (RELAY 123) Reversing (REVERSE) Thermal warning (THERMAL WARNING) Local operation (LOCAL MODE)

[9]

[10]

[11]

[12]

[13]

[14]

[15]

[16] [17] [18] [19]

[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)

✭

= factory setting. () = display text [] = value for use in communication via serial communication port

[25]

(CONTROL WORD BIT 11)

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. Is selected if the frequency converter is not to react to signals.

Unit ready, there is a supply voltage on the control card of the frequency converter, and the frequency converter is ready for operation.

Enable, no warning, the frequency converter is ready for operation, but no start command has been given. No warning.

Running is active when there is a start command ortheoutputfrequencyisabove0.1Hz. Also active during ramp-down.

Running in reference, no warning speed according to refe rence.

Running, no warning, a start command has been given. No warning.

Ready - mains voltage within range, the frequency converter is ready for 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, the output is activated by an alarm or w arning.

Current limit, the output current is higher t value programmed in parameter 221 Current limit I

Alarm, T he output is activated by an alarm.

Output frequency higher than f

frequency is higher than the value set in parameter 225 Warning: Low frequency, f

Output frequency lower than f

frequency is lower than the value set in parameter 226 Warning: High frequency, f

Output current higher than I

current is higher than the va lu 223 Warning: Low current, I

Output current lower than I

is lower than the value set in parameter 224

Warning: High current, I

HIGH

, the output

LOW

he output

, t

HIGH

, the output

LOW

esetinparameter

LOW

, the output current

HIGH

han the

[26]

LIM

Programming

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Feedback higher than FB

, the feedback value

LOW

is higher than the value set in parameter 227

Warning: Low feedback, FB

Feedback lowe r than FB

HIGH

LOW

, the feedback value

is lower than the value set in parameter 228

Warning: High current, I

HIGH

Relay 123 is only used in connection with Profidrive.

Reversing, The relay output is activated when

the direction of motor rotation is anti-clockwise. When the direction of motor rotation is clockwise, the value is 0 V DC.

Thermal warning, above the temperature limit in either the motor or the frequency converter, or from a thermistor connected to a digital input.

Local operation, theoutputisactivewhenin parameter 002 Local/remote operation, Local

operation [1] has been selected.

Out of the frequency range, the output frequency

is out of the programmed frequency range in parameters 225 and 226.

Out of the current range, the motor current is out of the programmed range in pa rameters 223 and 224.

Out of the feedback ran ge, the feedback signal is out of the programmed range in parameters 227 and 228.

Mechanical brake control, enables you to control an external mechanical brake (see section about control of mechanical brake in the Design Guide).

327 Pulse reference/feedback

(PULSE REF/FB MAX)

Value:

150 - 67600 Hz

✭ 5000 Hz

Function:

This parameter is used for setting the signal value

MAX

that corresponds to the maximum value set parameter 205 Maximum reference, Ref to the maximum feedback value set in parameter 415 Maximum feedback, FB

MAX

Description of choice:

Set the required pulse reference or pulse feedback to be connected to terminal 33.

328 Maximum Pulse 29

(MAX PULSE 29)

Value:

150 - 67600 Hz

✭ 5000 Hz

Function:

This parameter is used for setting the signal value that corresponds to the maximum value set in parameter 205 Maximum reference, Ref

MAX

or to the maximum feedback value set in parameter 415 Maximum feedback, FB

MAX

NB!:

Only relevant for DeviceNet. See MG90BXYY for further information.

341 Digital / pulse output terminal 46

(DO 46 FUNCTION)

Value:

Unit ready (UNIT READY)

[0] Parameter [0] - [20] see parameter 323 Pulse reference (PULSE REFERENCE)

[21] Parameter [22] - [25] see parameter 323 Pulse feedback (PULSE FEEDBACK) Output frequency (PULSE OUTPUTFREQ) Pulse current (PULSE CURRENT) Pulse power (PULSE POWER) Pulse temperature (PULSE TEMP)

[26]

[27]

[28]

[29]

[30]

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. Terminal can also be used for frequency output. Parameter 342 sets the maximum pulse frequency.

Description of choice:

Pulse reference Ref

MIN

-Ref

MAX

An output signal is obtained, which is proportional to the resulting reference value in the interval Minimum reference, Ref Ref

Pulse feedback FB

(parameters 204/205).

MAX

MIN

- Maximum reference,

MIN

-FB

MAX

An output signal is obtained, which is proportional to the feedback value in the interval Minimum feedback, FB

- Maximum feedback, FB

Output frequency 0-f

MAX

(parameter 414/415).

MAX

MIN

An output signal is obtained, which is proportional to the output frequency in the interval 0 - f 202 Output frequency, high limit, f

MAX

(parameter

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

Pulse current 0 - I

INV.

An output signal is obtained, which is proportional to the output current in the interval 0 - I

Pulse power 0 - P

M,N

INV

An output signal is obtained, which is proportional to the present output power. Par. 342 corresponds to the value set in parameter 102 Motor power, P

Pulse temperature 0 - Temp.

MAX

M,N

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 parameter 342 corresponds to 100° C.

NB!:

Output terminal 46 is not available on DeviceNet. Minimum output frequency at frequency output = 16 Hz

342 Terminal 46, max. pulse scaling

(DO 46 MAX. PULS)

Value:

150 - 10000 Hz

✭ 5000 Hz

Function:

This parameter is used for setting the pulse

output signal’s maximum frequency.

Description of choice:

Set the required frequency.

The selections are a combination of the functions described below.

NB!:

Pulse start [8] m ay n

ot be used together

with the precise stop function.

Description of choice:

Precise ramp stop [0] is selected to achieve high repetitive precision at the stopping point. Counter stop. Once it has received a pulse start signal the frequency 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. To stop at precisely the same point, regardless 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 and Speed-compensated stop can be combined with or without reset. Counter stop with reset [1]. After each precise stop the number of pulses counted during ramp down 0 Hz is reset. Counter stop without reset [2]. The number of pulses counted during ramp down to 0 Hz is deducted from the counter value in parameter 344.

Programming

343 Precise stop function

(PRECISE STOP)

Value:

✭Precise ramp stop (NORMAL)

Counter stop with reset (COUNT STOP RESET) Counter stop without reset (COUNT STOP NO RESET) Speed-compensated stop (SPD CM P STOP) Speed-compensated counter stop with reset (SPD CMP CSTOP W. RES) Speed-compensated counter stop without reset (SPD CMP CSTOP NO RES)

[0]

[1]

[2] [3]

[4]

[5]

344 Counter value

(PULSE COUNT PRE.)

Value:

0 - 999999

Function:

In this parameter you can select the counter value to be used in the integrated p recise stop function (parameter 343).

Description of choice:

The factory setting is 100000 pulses. The highest frequency (max. resolution) that can be registered at terminal 33 is 67.6 kHz.

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.

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

✭ 100000 pulses

MG.28.E9.02 - VLT is a registered Danfoss trademark

349 Speed comp delay

(SPEED COMP DELAY)

Value:

0 ms - 100 ms

Function:

In this parameter the user can set the system’s

delay t ime (Sensor, PLC, etc.). If you are running speed-compensated stop, the delay time at different frequencies has a major influence on the way in which you stop.

Description of choice:

Thefactorysettingis10ms. Thismeansthatitis assumed that the total delay from the Sensor, PLC and other hardware corresponds to this setting.

NB!:

Only active for speed-compensated stop.

✭ 10 ms

VLT®2800 Series

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

■Special functions

attempted. The t ime between each attempt is set in parameter 406 Automatic restart time.

400 Brake function

(BRAKE FUNCTION )

Value:

Off (OFF) Resistor brake (RESISTOR) AC brake (AC BRAKE) Load sharing (LOAD SHARING)

[0]

[1] [4] [5]

Description of choice:

If Manual reset [0] is selected, reset is to be carried out via the [STOP/RESET] key, a digital input or serial communication. If the frequency converter is to carry out an automatic reset and restart after a trip, select data value [1], [3] or [10]. If Reset at power-up [11] is selected, the frequency converter will carry out a reset if there has been a faultinconnectionwiththemainsfailure.

Factory setting depends on unit type.

The motor may start without warning.

Function:

Resistor brake [1] is selected if the frequency converter has an integral brake transistor and brake resistor is connected to terminals 81, 82. A higher intermediate circuit voltage is permitted during braking (generated operation) when a brake resistor is connected. AC brake [4] can be selected to improve braking withoutusingbrakeresistors. PleasenotethatAC brake [4] is not as effective as Resistor brake [1].

Description of choice:

Select Resistor brake [1] if a brake resistor is connected. Select AC brake [4] if short-term generated loads occur. See parameter 144 Gain AC brake to set the brake.

Select Load sharing [5]ifthisisused.

NB!:

406 Automatic restart time

(AUTORESTART TIME)

Value:

0-10sec.

Function:

This parameter allows setting of the time from tripping until the automatic reset function begins. It is assumed that automatic reset has been selected in parameter 405 Reset function.

Description of choice:

Set the required time. A change of selection will not become active until the mains voltage has been disconnected and reconnected.

409 Trip delay overcurrent, I

(TRIP DELAY CUR.)

405 Reset function

(RESET MODE)

Value:

✭Manual reset ( MANUAL RESET)

Automatic reset x 1 (AUTOMATIC X 1) Automatic reset x 3 (AUTOMATIC X 3) Automatic reset x 10 (AUTOMATIC X 10) Reset at power-up (RESET AT POWER UP)

Function:

This parameter m akes it possible to select whether reset and restart after a trip are to be manual or whether the frequency converter is to be reset and

[0]

[1]

[3]

[10]

[11]

Value:

0 - 60 sec. (61=OFF)

Function:

When the frequency converter registers that the

output current has reached the current limit I

(parameter 221 Current limit) and remains 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 frequency converter should

maintain the output current at the current limit

before it disconnects. At OFF p arameter 409

LIM

Trip delay overcurrent, I

LIM

disconnection will not take place.

restarted automatically. Furthermore, it is possible to select the number of times a restart is to be

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

✭ 5sec.

Programming

LIM

✭ OFF

LIM

is not working, i.e.

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

411 Switching frequency

(SWITCH FREQ.)

Value:

3000 - 14000 Hz (VLT 2803 - 2875) 3000 - 10000 Hz (VLT 2880 - 2882)

✭ 4500 Hz ✭ 4500 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.

NB!:

The output frequency of the frequency converter can never assume a value higher than 1/10 of the switching frequency.

Description of choice:

When the motor is running, the switching frequency is adjusted in parameter 411 Switching frequency until the frequency has been obtained at which the motor is as low-noise as possible.

NB!:

The switching frequency is reduced automatically as a function of the load. See Temperature-Dependent Switching

Frequency under Special Conditions . When LC-filter connected is selected in parameter 412, the minimum switching frequency is 4.5 kHz.

413 Overmodulation function

(OVERMODULATION)

Value:

Off (OFF)

✭On (ON)

Function:

This parameter allows c onnection of the

overmodulation funct ion 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.

On [1] means that an output voltage can be obtained

which is greater than the mains voltage (up to 5 %).

414 Minimum feedback, FB

MIN

(MIN. FEEDBACK)

Value:

-100,000.000 - par. 415 FB

MAX

✭ 0.000

Function:

Parameter 414 Minimum feedback, FB

Maximum feedback, FB

are used to scale the

MAX

MIN

and 415

display text to make it show the feedba ck signal in a

process unit proportionally to the signal on the input.

[0] [1]

412 Variable switching frequency

(VAR CARRIER FREQ.)

Value:

✭Without LC-filter (WITHOUT LC-FILTER)

LC-filter connected (LC-FILTER CONNECTED)

Function:

The parameter must be set to LC-filter connected if an LC-filter is connected between the frequency converter and the m otor.

Description of choice:

The LC-filter connected [3]mustbeusedifan LC-filter is connected between the frequency converter and the motor, as otherwise the frequency converter cannot protect the LC-filter.

NB!:

When the LC filter is selected the switching frequency is changed to 4.5 kHz.

[2]

[3]

Description of choice:

Setthevaluetobeshownonthedisplayasthe

minimum feedback signal value on the selected

feedback input (parameters 308/314 Analogue inputs).

415 Maximum feedback, FB

MAX

(MAX. FEEDBACK)

Value:

- 100,000.000

MIN

✭ 1500.000

Function:

See description of parameter 414 Minimum

feedback, FB

MIN

Description of choice:

Setthevaluetobeshownonthedisplaywhenthe

maximum feedback has been obtained on the selected

feedback input ( parameter 308/314 Analogue inputs).

✭ = factory setting. () = display text [] = value for use in communicat ion via serial communication port

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

416 Process units

(REF/FEEDB. UNIT)

Value:

✭No unit (NO UNIT)

%(%) ppm (PPM ) rpm (RPM) bar (BAR) Cycles/min (CYCLE/MI) Pulses/s (PULSE/S) Units/s (UNITS/S) Units/min. (UNITS/MI) Units/h (UNITS/H) °C (°C) Pa (PA) l/s (L/S)

/s (M3/S)

m l/min. (L/M)

/min. (M3/MIN)

m l/h (L/H)

/h (M3/H)

m Kg/s (KG/S) Kg/min. (KG/MIN) Kg/hour (KG/H) Tons/min. (T/MIN) Tons/hour (T/H) Metres (M) Nm (NM) m/s (M/S) m/min. (M/MIN) °F (°F) In wg (IN WG) gal/s (GAL/S)

/s (FT3/S)

Ft Gal/min. (GAL/MIN)

/min. (FT3/MIN)

Ft Gal/h (GAL/H)

/h (FT3/H)

Ft Lb/s (LB/S) Lb/min. (LB/MIN) Lb/hour (LB/H) Lb ft (LB FT) Ft/s (FT/S) Ft/min. (FT/MIN)

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 Reference [unit] [2] or Feedback [unit] [3] has been selected in one of parameters 009-012 Display read-out,andin Display mode. The unit is used in Closed loop

also as a unit for Minimum/Maximum reference

and Minimum/Maximum feedback.

[0] [1] [2]

Description of choice:

Select the required unit for the reference/feed-

back signal.

[3] [4]

■VLT 2800 Regulators

[5] [6] [7] [8]

[9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21]

The VLT 2800 has two integrated PID regulators, one to regulate speed and one to regulate processes. Speed regulation and process regulation require a fe edback 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. In parameter 100 Configuration it is possible to select regulator type, Speed regulation, closed loop [1] or Process regulation, closed loop [3].

peed regulation

S 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.

[22]

rocess regulation

[23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40]

P The PID regulator maintains a constant process mode (pressure, temperature, 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 p rocess 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 regulator 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 optimised for use in process applications. This means that the re 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

Programming

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

MG.28.E9.02 - VLT is a registered Danfoss trademark

VLT®2800 Series

that are specific to the Process Regulator are parameter 437 to parameter 444.

■PID functions

nit of reference/feedba ck

When Speed regulation, closed loop is selected in parameter 100 Configuration the unit of reference/feedback is always rpm. When Process regulation, closed loop is selected in parameter 100 Configuration the unit is defined in parameter 416 Process units.

eedback

F A feedback range must be preset for both regulators. Atthesametimethisfeedbackrangelimitsthe 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 Terminal Parameters

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 external reference making the sum of the references move too far away from the optimal reference. The reference range cannot exceed the feedback range. If preset references are desired, they are preset in parameters 215 to 218 Preset reference. See description Reference Function and Handling of Refe rences. 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 determine which terminal is to be used and which parametersaretobeprogrammed.

Reference type Terminal Parameters

Pulse 33 307, 327

Voltage 53 308, 309, 310

Current 60 314, 315, 316

Preset

215-218

references

Bus reference 68+69

Note that the bus reference can only be preset via serial communication.

Pulse 33 307, 327

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 group 300 Min./Max scaling.

Parameters 414/415 Minimum/Maximum feedback must also be preset to a value in the process unit corr values for signals that are connected to the terminal.

R In parameter 205 Maximum reference, Ref po the sum of all references, i.e. the resulting reference. The minimum reference in parameter 204 is a resulting reference can assume. 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 reference range

output is used. This is done in parameter

esponding to the minimum and maximum scaling

eference

MAX

ssible to preset a maximum reference that scales

n expression o f the minimum value that the

it is

NB!:

It is best to being used to No function [0].

ifferentiator gain limit

D If very rapid variations occur in an application in either the the de viation between the reference/setpoint and

the process’s actual mode will change quickly. The

differe is because it is reacting to the deviation between

the reference and the process’s actual mode,

and t

powerful the differentiator’s frequency contribution becomes. The differentiator’s frequency contribution

an therefore be limited in such a way that both

c a reasonable differentiation time for slow changes and an appropriate frequency contribution for quick changes can be preset. This is done using the speed regulation in parameter 420 Speed PID Differentiator

gain limit and Process regulation in parameter 443 Process PID Differentiator gain limit.

reference signal or the feedback signal,

ntiator can then become too dominant. This

he quicker the variance changes the more

preset terminals that are not

= factory setting. () = display text [] = value for use in communication via serial communication port

✭

100

MG.28.E9.02 - VLT is a registered Danfoss trademark

Danfoss VT2800 Series Design Manual

Specifications and Main Features

Frequently Asked Questions

User Manual