Danfoss VLT FC 51 Series Programming Manual

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VLT Micro Drive FC 51 Contents

Contents

1. Safety

Safety Instructions 3

Approvals 3

General Warning 3

Avoid unintended Start 4

Before Commencing Repair Work 5

2. Introduction

Type Code 7

3. Programming

How to Programme 9

Programming with MCT-10 9

Programming with LCP 11 or LCP 12 9

Status Menu 11

Quick Menu 11

Main Menu 12

4. Parameter Descriptions

Parameter group 0: Operation/Display 13

Parameter Group 1: Load/Motor 18

Parameter Group 2: Brakes 27

Parameter Group 3: Reference/Ramps 30

Parameter Group 4: Limits/Warnings 36

Parameter Group 5: Digital In/Out 39

Parameter Group 6: Analogue In/Out 44

Parameter Group 7: Controllers 50

Parameter Group 8: Communication 52

Parameter Group 13: Smart Logic 57

Parameter Group 14: Special Functions 65

Parameter Group 15: Drive Information 68

Parameter Group 16: Data Readouts 71

5. Parameter Lists

6. Troubleshooting Index

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1. Safety VLT Micro Drive FC 51

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VLT Micro Drive FC 51 1. Safety

1. Safety

1.1.1. High Voltage Warning

The voltage of the frequency converter is dangerous whenever it is connected to mains. Incorrect installation of the motor or frequency converter may cause damage to the equipment, serious injury or death. Consequently, it is essential to comply with the instructions in this manual as well as local and national rules and safety regulations.

1.1.2. Safety Instructions

• Make sure the frequency converter is properly connected to earth.

• Do not remove mains connections, motor connections or other power connections while the frequency converter is connected to power.

• Protect users against supply voltage.

• Protect the motor against overloading according to national and local regulations.

• The earth leakage current exceeds 3.5 mA.

• The [OFF] key is not a safety switch. It does not disconnect the frequency converter from mains.

1.1.3. Approvals

1.1.4. General Warning

Warning:

Touching the electrical parts may be fatal - even after the equipment has been disconnected from mains. Also make sure that other voltage inputs have been disconnected, (linkage of DC intermediate circuit). Be aware that there may be high voltage on the DC link even when the LEDs are turned off. Before touching any potentially live parts of the VLT Micro Drive, wait at least 4 minutes for all sizes. Shorter time is allowed only if indicated on the nameplate for the specific unit.

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1. Safety VLT Micro Drive FC 51

Leakage Current

The earth leakage current from the VLT Micro Drive FC 51 exceeds 3.5 mA. According to IEC 61800-5-1 a reinforced Protective Earth connection must be ensured by means of a min. 10mm² Cu or an addtional PE wire - with the same cable cross section as the Mains wiring - must be terminated separately.

Residual Current Device

This product can cause a D.C. current in the protective conductor. Where a residual current device (RCD) is used for extra protection, only an RCD of Type B (time delayed) shall be used on the supply side of this product. See also Danfoss Application Note on RCD, MN.90.GX.YY. Protective earthing of the VLT Micro Drive and the use of RCDs must always follow national and local regulations.

Motor overload protection is possible by setting Parameter 1-90 Motor thermal protection to the value ETR trip. For the North American market: ETR functions provide class 20 motor overload protection, in accordance with NEC.

Installation in high altitudes:

By altitudes above 2km, please contact Danfoss Drives regarding PELV.

1.1.5. IT Mains

IT Mains

Installation on isolated mains source, i.e. IT mains. Max. supply voltage allowed when connected to mains: 440 V.

As an option, Danfoss offers line filters for improved harmonics performance.

1.1.6. Avoid unintended Start

While the frequency converter is connected to mains, the motor can be started/stopped using digital commands, bus commands, references or via the Local Control Panel.

• Disconnect the frequency converter from mains whenever personal safety considerations make it necessary to avoid unintended start of any motors.

• To avoid unintended start, always activate the [OFF] key before changing parameters.

1.1.7. Disposal Instruction

Equipment containing electrical components must not be disposed of together with domestic waste. It must be separately collected with electrical and electronic waste according to local and currently valid legislation.

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VLT Micro Drive FC 51 1. Safety

1.1.8. Before Commencing Repair Work

1. Disconnect FC 51 from mains (and external DC supply, if present.)

2. Wait for 4 minutes for discharge of the DC-link.

3. Disconnect DC bus terminals and brake terminals (if present)

4. Remove motor cable

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2. Introduction VLT Micro Drive FC 51

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VLT Micro Drive FC 51 2. Introduction

2. Introduction

2.1.1. FC Identification

Below is an example of an identification sticker. This sticker is situated on the frequency converter and shows the type and options fitted to the unit. See following tables for details, how to read the Type code string.

Illustration 2.1: This example shows the identification sticker.

2.1.2. Type Code

Description Pos Possible choice Product group 1-3 Adjustable Frequency Converters Series and product type 4-6 Micro Drive Power size 7-10 0.18 - 7.5 kW Mains voltage 11-12 S2: Single phase 200 - 240 V AC

Enclosure 13-15 IP20/Chassis RFI filter 16-17 HX: No RFI filter

Brake 18 B: Brake chopper included

Display 19 X: No Local Control Panel

Coating PCB 20 C: Coated PCB

Mains option 21 X: No mains option Adaptation A 22 No adaptation Adaptation B 23 No adaptation Software release 24-27 Latest release - std. software

T 2: Three phase 200 - 240 V AC T 4: Three phase 380 - 480 V AC

H1: RFI filter class A1/B H3:RFI filter A1/B (reduced cable length)

X: No brake chopper included

N: Numerical Local Control Panel (LCP) P: Numerical Local Control Panel (LCP) with potentiometer

X. No coated PCB

Table 2.1: Type code description

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2. Introduction VLT Micro Drive FC 51

2.1.3. Symbols

Symbols used in this Programming Guide.

NB!

Indicates something to be noted by the reader.

Indicates a general warning.

Indicates a high-voltage warning.

* Indicates default setting

2.1.4. Abbreviations and Standards

Terms: Abbreviations: SI-units: I-P units:

Acceleration m/s² ft/s² American wire gauge AWG Automatic Motor Tuning AMT Current A Amp Current limit Energy J = N·m ft-lb, Btu Fahrenheit ˚F Frequency Converter FC Frequency Hz Hz Kilohertz kHz Local Control Panel LCP Milliampere mA Millisecond ms Minute min Motion Control Tool MCT Motor Type Dependent M-TYPE Newton Metres Nm Nominal motor current Nominal motor frequency Nominal motor power Nominal motor voltage Parameter par. Protective Extra Low Voltage PELV Power W Btu/hr, hp

Pressure Pa = N/m²

Rated Inverter Output Current Revolutions Per Minute RPM Size Related SR Temperature ˚C ˚F Time s s,hr Torque limit Voltage V V

LIM

M,N

INV

LIM

psi, psf, ft of water

Table 2.2: Abbreviation and Standards table .

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VLT Micro Drive FC 51 3. Programming

3. Programming

3.1. How to Programme

3.1.1. Programming with MCT-10

The frequency converter can be programmed from a PC via RS485 com-port by installing the MCT-10 Set-up Software.

This software can either be ordered using code number 130B1000 or downloaded from the Danfoss Web site: www.danfoss.com, Business Area: Motion Controls.

Please refer to manual MG.10.RX.YY.

3.1.2. Programming with LCP 11 or LCP 12

The LCP is divided into four functional groups:

1. Numeric display.

2. Menu key.

3. Navigation keys.

4. Operation keys and indicator lights (LEDs).

Illustration 3.1: LCP 12 with potentiometer

The display:

A number of information can be read from the display.

Set-up number shows the active set-up and

the edit set-up. If the same set-up acts as both active and edit set-up, only that set-up number is shown (factory setting). When active and edit set-up differ, both numbers are shown in the display (Setup 12). The number flashing, indicates the edit set-up.

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Illustration 3.2: LCP 11 without potentiometer

Illustration 3.3: Indicating Set-up

3. Programming VLT Micro Drive FC 51

The small digits to the left are the selected

parameter number .

Illustration 3.4: Indicating selected par. no.

The large digits in the middle of the display show the value of the selected parameter.

Illustration 3.5: Indicating value of selected par.

The right side of the display shows the unit of the selected parameter. This can be either Hz, A, V, kW, HP, %, s or RPM.

Illustration 3.6: Indicating unit of selected par.

Motor direction is shown to the bottom left

of the display - indicated by a small arrow pointing either clockwise or counterclockwise.

Illustration 3.7: Indicating motor direction

Use the [MENU] key to select one of the following menus:

Status Menu:

The Status Menu is either in currently selected readout parameter is shown in the display.

Hand on Mode

Quick Menu:

Displays Quick Menu parameters and their settings. Parameters in the Quick Menu can be accessed and edited from here. Most applications can be run by setting the parameters in the Quick Menus.

Main Menu:

Displays Main Menu parameters and their settings. All parameters can be accessed and edited here. A parameter overview is found later in this chapter.

the local LCP reference is displayed.

Readout Mode

Hand on Mode

. In

Readout Mode

the value of the

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VLT Micro Drive FC 51 3. Programming

Indicator lights:

• Green LED: Power is on the frequency converter.

• Yellow LED: Indicates a warning.

• Flashing red LED: Indicates an alarm.

Navigation Keys: [Back]: For moving to the previous step or layer in the navigation structure. Arrows [▲] [▼]: For manoeuvring between parameter groups, parameters and within parame-

ters.

[OK]: For selecting a parameter and for accepting changes to parameter settings.

Operation Keys:

A yellow light above the operation keys indicates the active key.

[Hand on]: Starts the motor and enables control of the frequency converter via the LCP. [Off/Reset]: The motor stops except in alarm mode. In that case the motor will be reset. [Auto on]: The frequency converter is controlled either via control terminals or serial communi-

cation.

[Potentiometer] (LCP12): The potentiometer works in two ways depending on the mode in

which the frequency converter is running.

Auto Mode

Hand on Mode

the potentiometer acts as an extra programmable analog input.

the potentiometer controls local reference.

3.2. Status Menu

After power up the Status Menu is active. Use the [MENU] key to toggle between Status, Quick Menu and Main Menu.

Arrows [▲] and [▼] toggles between the choices in each menu.

The display indicates the status mode with a small arrow above “Status”.

3.3. Quick Menu

The Quick Menu gives easy access to the most frequently used parameters.

1. To enter the Quick Menu, press [MENU] key until indicator in display is placed above press [OK].

2. Use [▲] [▼] to browse through the parameters in the Quick Menu.

3. Press [OK] to select a parameter.

Use [▲] [▼] to change the value of a parameter setting.

5. Press [OK] to accept the change.

6. To exit, press either [Back] twice to enter

Status

to enter

Main Menu

Quick Menu

, or press [Menu] once

, then

Illustration 3.8: Indicating Status mode

Illustration 3.9: Indicating Quick Menu mode

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3. Programming VLT Micro Drive FC 51

3.4. Main Menu

The Main Menu gives access to all parameters.

1. To enter the Main Menu, press [MENU] key until indicator in display is placed above

2. Use [▲] [▼] to browse through the parameter groups.

3. Press [OK] to select a parameter group.

Use [▲] [▼] to browse through the parameters in the specific group.

5. Press [OK] to select the parameter.

6. Use [▲] [▼] to set/change the parameter value.

7. Press [OK] to accept the value.

8. To exit, press either [Back] twice to

Quick Menu

enter once to enter

Main Menu

, or press [Menu]

Status

Illustration 3.10: Indicating Main Menu mode

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VLT Micro Drive FC 51 4. Parameter Descriptions

4. Parameter Descriptions

4.1. Parameter group 0: Operation/Display

0-03 Regional Settings

Option: Function:

In order to meet the needs for different default settings in different parts of the world, par. 0-03, mented in the frequency converter. The selected setting influences the default setting of the motor nominal frequency.

Regional Settings

, is imple-

International Sets default of par. 1-23,

[0 ]

[1] US Sets default of par. 1-23,

NB!

This parameter cannot be adjusted while motor runs.

0-04 Operating State at Power-up (Hand Mode)

Option: Function:

This parameter controls whether or not the frequency converter should start running the motor when powering up after a power down in Hand mode.

NB!

If LCP with potmeter is mounted, reference is set according to actual potmeter value.

[0] Resume Frequency converter starts in same Hand or Off State as when

powered off.

Local reference is stored and used after power-up.

Motor Frequency

, to 50 Hz.

, to 60 Hz.

[1]

[2] Forced Stop, Ref=0 Frequency converter powers up in Off State meaning that motor

Forced Stop, Ref=Old Frequency converter powers up in Off State meaning that motor

4.1.1. 0-1* Set-up Handling

User defined parameters and miscellaneous external inputs (eg. bus, LCP, analog/digital inputs, feedback, etc.) controls the functionality of the frequency converter.

A complete set of all parameters controlling the frequency converter is called a set-up. The Micro Drive FC 51 contains 2 set-ups,

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is stopped after power up.

Local reference is stored and used after power-up.

is stopped after power up.

Local reference is set to 0. Thus motor will not start running before local reference has been increased.

Set-up1

and

Set-up 2

4. Parameter Descriptions VLT Micro Drive FC 51

Furthermore, a fixed set of factory settings can be copied into one or more set-ups.

Some of the advantages of having more than one set-up in the frequency converter are

• Run motor in one set-up (Active Set-up) while updating parameters in another set-up (Edit Set-up)

• Connect various motors (one at a time) to frequency converter. Motor data for various motors can be placed in different set-ups.

• Rapidly change settings of frequency converter and/or motor while motor is running (eg. ramp time or preset references) via bus or digital inputs.

Active Set-up

The digital input terminal and/or via the bus control word.

0-10 Active Set-up

Option: Function:

can be set as

NB!

FactorySet-up

Multi Set-up

cannot be used as

Active Set-up

Shifts between set-ups can only happen when

•the motor is coasted

• the set-ups between which the shift happens are linked

If changing between set-ups that are not linked, the change will not happen before motor is coasted.

where the active set-up is selected via input on a

Active Set-up

controls the motor.

to each other (see par. 0-12,

Linked Set-ups

NB!

The motor is only considered stopped when it is coasted.

[1 ]

[2] Set-up 2

[9] Multi Set-up Select the active set-up via digital input and/or bus, see par.

0-11 Edit Set-up

Option: Function:

[1 ]

[2] Set-up 2 Update parameters in

Set-up 1

Set-up 1 Update parameters in

Set-up 1

Set-up 2

5-1* choice [23].

The converter from either LCP or bus. It can be identical or different from the

All set-ups can be edited during operation, independently of the active set-up.

is active.

Edit Set-up

Active Set-up

is for updating parameters in the frequency

Set-up 1

Set-up 2

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VLT Micro Drive FC 51 4. Parameter Descriptions

[9] Active Set-up Update parameters in set-up selected as

0-10).

0-12 Link Set-ups

Option: Function:

The link ensures synchronizing of the “not changeable during operation” parameter values enabling shift from one set-up to another during operation.

If the set-ups are not linked, a change between them is not possible while the motor is running. Thus the set-up change does not occur until the motor is coasted.

[0] Not linked Leaves parameters unchanged in both set-ups and cannot be

changed while motor runs.

[1 ]

Linked Copy parameters “not changeable during operation” parameter

values into presently selected

NB!

This parameter cannot be changed while motor runs.

Edit Set-up

Active Set-up

(see par.

4.1.2. 0-4* LCP Keypad

The frequency converter can operate in the following three modes:

Hand:

The frequency converter is locally operated and does not allow any remote control. By

activating Hand a start signal is given.

OFF:

The frequency converter stops with a normal stop ramp. When Off is chosen the frequency

converter can only be started by pressing either Hand or Auto on the LCP.

Auto:

In Auto-mode the frequency converter can be remote controlled (bus/digital).

0-40 [Hand on] Key on LCP

Option: Function:

[0] Disabled Hand-on key has no function.

Enabled Hand-on key is functional.

[1 ]

0-41 [Off/Reset] Key on LCP

Option: Function:

[0] Disable Off/Reset Off/reset key has no function.

Enable Off/Reset Stop signal and reset of any faults.

[1 ]

[2] Enable Reset Only Reset only. Stop (Off) function is disabled.

Hand, Off

and

Auto

0-42 [Auto on] Key on LCP

Option: Function:

[0] Disabled Auto-on key has no function.

[1 ]

Enabled Auto-on key is functional.

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4. Parameter Descriptions VLT Micro Drive FC 51

4.1.3. 0-5* Copy/Save

0-50 LCP Copy

Option: Function:

The detachable LCP of the frequency converter can be used for storing setups, and thus for transferring data when moving parameter settings from one frequency converter to another.

NB!

LCP Copy

ONLY when the motor is coasted.

[1] All to LCP Copy all setups from the frequency converter into the LCP.

[2] All from LCP Copy all setups from LCP to frequency converter.

[3] Size indep. from LCP Copy non motor size dependent data from LCP to frequency

converter

can only be activated from the LCP and

0-51 Set-up Copy

Option: Function:

Use this function to copy a set-up content into the In order to be able to make a set-up copy ensure that

•the motor is coasted

• par. 0-10,

[0 ]

[1] Copy from Set-up 1 Copy from

[2] Copy from Set-up 2 Copy from

[9] Copy from Factory

No Copy Copy function is inactive

Copy from Factory Settings to edit set-up chosen in par. 0-11,

Set-up

Edit set-up

Edit Set-up

Active Set-up

Set-up 2

Set-up 1

Set-up 2

[2]

NB!

The keyboard/parameter database are blocked while Set-up Copy is running.

to edit set-up chosen in par. 0-11,

, is set to either

Set-up 1

[1]

Edit Set-

4.1.4. 0-6* Password

0-60 (Main) Menu Password

Range: Function:

Use password for protection against unintended change of sensitive parameters, eg. motor parameters.

Password protected parameters can always be read, but cannot be edited without entering the password.

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VLT Micro Drive FC 51 4. Parameter Descriptions

[0 - 999] Enter the password for access to Main Menu via the [Main Menu]

key. Select the number that should allow for changing other parameter values.

NB!

A password only has affect on the LCP - not on the bus communication.

means there is no password.

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4. Parameter Descriptions VLT Micro Drive FC 51

4.2. Parameter Group 1: Load/Motor

1-00 Configuration Mode

Option: Function:

Use this parameter for selecting the application control principle to be used when a Remote Reference is active.

NB!

Changing this parameter will reset parameters 3-00, 3-02 and 3-03 to their default values.

NB!

This parameter cannot be adjusted while motor runs.

[0 ]

[3] Process Closed Loop Enables process closed loop control. See par. group 7-3* for

1-01 Motor Control Principle

Option: Function:

[0] U/f Is used for parallel connected motors and/or special motor ap-

[1]

1-03 Torque Characteristics

Option: Function:

Speed Open Loop For normal speed control (References).

further information on PI-controller.

When running in process closed loop, par. 4-10

Direction

plications. The U/f settings are set in parameters 1-55 and 1-56.

VVC+ Normal running mode, including slip- and load compensations.

With more torque characteristics it is possible to run low energy consuming, as well as high torque applications.

must be set to

NB!

When running U/f control slip- and load compensations are not included.

Clockwise

[0]

Motor Speed

Constant Torque Motor shaft output provides constant torque under variable

[0 ]

speed control.

[2] Automatic Energy Op-

tim.

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This function automatically optimizes energy consumption in centrifugal pump and fan applications. See par. 14-41

imum Magnetisation

AEO Min-

VLT Micro Drive FC 51 4. Parameter Descriptions

1-05 Hand Mode Configuration

Option: Function:

This parameter is only relevant when parameter 1-00

ration Mode

used for determining the reference or setpoint handling when changing from Auto Mode to Hand Mode on the LCP.

[0] Speed Open Loop In Hand Mode the drive always ru ns i n Open Loop conf iguration

regardless of setting in par. 1-00 tentiometer (if present) or Arrow up/down determines output frequency limited by Motor Speed High/Low Limit (parameters 4-14 and 4-12).

is set to

Process Closed Loop

Configuration Mode

[3]. The parameter is

Configu-

. Local po-

[2]

As configuration in

par. 1-00

4.2.1. 1-2* Motor Data

Enter the correct motor nameplate data (power, voltage, frequency, current and speed). Run AMT, see par. 1-29. Factory settings for advanced motor data, par. 1-3*, are automatically calculated.

NB!

Parameters in parameter group 1.2* cannot be adjusted while motor runs.

1-20 Motor Power [kW]/[HP] (P

Range: Function:

[0.09 kW/0.12 HP 11 kW/15 HP]

If par. 1-00 is as described above. If par. 1-00 is set to mode to Hand mode results in a setpoint change via local potentiometer or Arrow up/down. The change is limited by Reference Max/Min (parameters 3-02 and 3-03).

Enter motor power from nameplate data.

Two sizes down, one size up from nominal VLT rating.

Configuration Mode

Process Closed Loop

)

m.n

NB!

Changing this parameter affects par. 1-22 to 1-25, 1-30, 1-33 and 1-35.

is set to

Open Loop

[3] c han g ing f rom A uto

[1] function

1-22 Motor Voltage (U

Range: Function:

230/400V[50 - 999 V] Enter motor voltage from nameplate data.

1-23 Motor Frequency (f

Range: Function:

50 Hz

[20-400 Hz] Enter motor frequency from nameplate data.

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m.n

)

m.n

)

4. Parameter Descriptions VLT Micro Drive FC 51

1-24 Motor Current (I

Range: Function:

M-type dependent

1-25 Motor Nominal Speed (n

Range: Function:

M-type Dependent

1-29 Automatic Motor Tuning (AMT)

Option: Function:

[0.01 - 26.00 A] Enter motor current from nameplate data.

[100 - 9999 RPM] Enter motor nominal speed from nameplate data.

)

m.n

)

m.n

Use AMT to optimize motor performance.

1. Stop VLT – make sure motor is at standstill

2. Choose [2] Enable AMT

3. Apply start signal

NB!

This parameter cannot be changed while motor runs.

– Via LCP: Press Hand On

- Or in Remote On mode: Apply start signal on terminal 18

[0]

[2] Enable AMT AMT function starts running.

Off AMT function is disabled.

4.2.2. 1-3* Adv. Motor Data

Adjust advanced motor data using one of these methods:

1. Run AMT on cold motor. Frequency converter measures value from motor.

2. Enter X

3. Use X plate data.

value manually. Obtain value from motor supplier.

default setting. Frequency converter establishes setting based on motor name-

NB!

This parameter cannot be changed while motor runs.

NB!

To gain optimum tuning of frequency converter, run AMT on a cold motor.

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VLT Micro Drive FC 51 4. Parameter Descriptions

1-30 Stator Resistance (Rs)

Range: Function:

Depending on motor data

[Ohm] Set stator resistance value.

1-33 Stator Leakage React an ce (X1)

Range: Function:

Depending on motor data

1-35 Main Reactance (X2)

Range: Function:

Depending on motor data

[Ohm] Set stator leakage reactance of motor.

[Ohm] Set motor main reactance.

4.2.3. 1-5* Load Independent Setting

This parameter group is for setting the load independent motor settings.

1-50 Motor Magnetization at Zero Speed

Range: Function:

This parameter enables different thermal load on motor when running at low speed.

[ 0 - 300%] Enter a percentage of rated magnetizing current. If setting is

100 %

too low, motor shaft torque may be reduced.

1-52 Min. Speed Normal Magnetizing [Hz]

Range: Function:

Use this parameter along with par. 1-50,

Zero Speed

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Motor Magnetizing at

4. Parameter Descriptions VLT Micro Drive FC 51

0.0 Hz

[0.0 - 10.0 Hz] Set frequency required for normal magnetizing current. If fre-

quency is set lower than motor slip frequency, par. 1-50,

Magnetizing at Zero Speed

1-55 U/f Characteristic - U

Range: Function:

This parameter is an array parameter [0-5] and is only functional when par. 1-01,

0.0 V

1-56 U/f Characteristic - F

Range: Function:

[0.0 - 999.9 V] Enter voltage at each frequency point to manually form a U/f

characteristic matching motor. Frequency points are defined in par. 1-56,

This parameter is an array parameter [0-5] and is only functional when par. 1-01,

is inactive.

Motor Control Principle

U/f characteristics - F

Motor Control Principle

Motor

is set to

U/f

[0].

0.0 Hz

[0.0 - 1000.0 Hz] Enter frequency points to manually form a U/f characteristic

matching motor. Voltage at each point is defined in par. 1-55,

U/f Characteristic - U

Make a U/f characteristic based on 6 definable voltages and frequencies, see below figure. Simplify U/f characteristics by merging 2 or more points (voltages and frequencies), respectively, are set equal.

Illustration 4.1: Fig. 1 U/f characteristics

NB!

For par. 1-56 the following applies [0] ≦ [1] ≦ [2] ≦ [3] ≦ [4] ≦ [5]

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VLT Micro Drive FC 51 4. Parameter Descriptions

4.2.4. 1-6* Load Dependent setting

Parameters for adjusting the load dependent motor settings.

1-60 Low Speed Load Compensation

Range: Function:

Use this parameter to gain optimum U/f characteristic when running at low speed.

[0-199 %] Enter percentage in relation to load when motor runs at low

100 %

speed.

Change-over point is automatically calculated based on motor size.

1-61 High Speed Load Compensation

Range: Function:

Use this parameter to obtain optimum load compensation when running at high speed.

100 %

1-62 Slip Compensation

Range: Function:

100 %

[0 - 199 %] Enter percentage to compensate in relation to load when motor

runs at high speed.

Change-over point is automatically calculated based on motor size.

[-400 - 399 %] Compensation for load dependent motor slip.

Slip compensation is calculated automatically based on rated motor speed, n

M,N

NB!

This function is only active when par. 1-00,

figuration Mode

and when par. 1-01,

VVC+

, is set to

[1].

Speed Open Loop

Motor Control Principle

Con-

[0],

, is set

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4. Parameter Descriptions VLT Micro Drive FC 51

1-63 Slip Compensation Time

Range: Function:

0.10 s [0.05 - 5.00 s] Enter slip compensation reaction speed. A high value results in slow reaction whereas a low value results in quick reaction.

If low-frequency resonance problems arise, use longer time setting.

4.2.5. 1-7* Start Adjustments

Considering the need for various start functions in different applications, it is possible to select a number of functions in this parameter group.

1-71 Start Delay

Range: Function:

The start delay defines the time to pass from a start command is given until the motor starts accelerating. Setting start delay to 0.0 sec. disables when start command is given.

0.0 s

1-72 Start Function

Option: Function:

[0] DC Hold/Delay Time Motor is energized with DC holding current (par. 2-00) during

[1] DC Brake/Delay Time Motor is energized with DC braking current (par. 2-01) during

[2]

[0.0 - 10.0 s] Enter the time delay required before commencing acceleration.

Par. 1-72

start delay time.

Coast/Delay Time Inverter is coasted during start delay time (inverter off).

Start Function

is active during

Start Function

Start delay time

, [1-72],

1-73 Flying Start

Option: Function:

Use flying start to catch a spinning motor after eg. mains dropout.

This function is not suitable for hoisting applications.

[0]

[1] Enabled Frequency converter enabled to catch spinning motor.

Disabled Flying start is not required.

NB!

When flying start is enabled par. 1-71,

lay

tion.

, and par. 1-72,

Start Function

, have no func-

Start De-

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VLT Micro Drive FC 51 4. Parameter Descriptions

4.2.6. 1-8* Stop Adjustments

To meet the need for various stop functions in different application these parameters offer some special stop features for the motor.

1-80 Function at Stop

Option: Function:

The selected function at stop is active in following situations:

• Stop command is given and output speed is ramped down to

• Start command is removed (standby), and output speed is ramped down to

Functions at Stop

• DC-brake command is given, and DC-brake time has passed

• While running and calculated output speed is below

Min. Speed for Activating Functions at Stop

Min. Speed for Activating

[0]

[1] DC hold The motor is energized with a DC current. See par. 2-00

Coast The inverter is coasted.

Current

1-82 Min. Speed For Function at Stop [Hz]

Range: Function:

0.0 Hz

[0.0 - 20.0 Hz] Set the speed at which to activate par. 1-80

4.2.7. 1-9* Motor Temperature

With an estimated motor temperature monitor the frequency converter is able to estimate motor temperature without having a thermistor mounted. It is thus possible to receive a warning or an alarm, if motor temperature exceeds upper operational limit.

1-90 Motor Thermal Protection

Option: Function:

Using ETR (Electronic Terminal Relay) the motor temperature is calculated based on frequency, speed and time. Danfoss recommends using The ETR function, if a thermistor is not present.

for more information.

Function at Stop

NB!

ETR calculation is based on motor data from group 1-2*.

DC Hold

[0]

[1] Thermistor Warning A thermistor connected to either digital or analog input gives a

No Protection Disables temperature monitoring.

warning if upper limit of motor temperature range is exceeded, (see par. 1-93,

MG.02.C2.02 - VLT® is a registered Danfoss trademark

Thermistor Resource)

4. Parameter Descriptions VLT Micro Drive FC 51

[2] Thermistor Trip A thermistor connected to either digital or analog input gives an

alarm and makes the frequency converter trip if upper limit of motor temperature range is exceeded, (see par. 1-93,

tor Resource

[3] ETR Warning If calculated upper limit of motor temperature range is excee-

ded, a warning occurs.

[4] ETR Trip If calculated upper limit of motor temperature range is excee-

ded, an alarm occurs and frequency converter trips.

Thermis-

1-93 Thermistor Resource

Option: Function:

Select the thermistor input terminal.

None No thermistor is connected.

[0]

[1] Analog Input 53 Connect thermistor to analog input terminal 53.

NB!

Analog input 53 cannot be selected for other purposes when selected as thermistor resource.

[6] Digital input 29 Connect thermistor to digital input terminal 29.

While this input functions as thermistor input, it will not respond to the function chosen in par. 5-13, of par. 5-13 remains however unchanged in parameter database while function is inactive.

Input Digital/

Analog Digital 10 V <800 ohm - >2.9k ohm Analog 10 V <800 ohm - >2.9k ohm

Supply Voltage Threshold Cut-out

Digital Input 29

Values

. The value

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VLT Micro Drive FC 51 4. Parameter Descriptions

4.3. Parameter Group 2: Brakes

4.3.1. 2-** Brakes

4.3.2. 2-0* DC-Brake

The purpose of DC-brake function is to brake a rotating motor by applying DC-current to the motor.

2-00 DC Hold Current

Range: Function:

This parameter either holds the motor (holding torque) or preheats the motor.

50%

The parameter is active if par. 1-72

[0 - 100%] Enter a value for holding current as a percentage of the rated

motor current set in par. 1-24 current corresponds to I

Start Function

DC Hold

or par. 1-80

M,N

has been selected in either

Function at Stop

Motor Current

. 100% DC holding

NB!

Avoid 100% current too long as it may overheat the motor.

2-01 DC Brake Current

Range: Function:

50 %

2-02 DC-Braking Time

Range: Function:

10.0 s

[0 - 150%] Set DC-current needed to brake rotating motor.

Activate DC-brake in one of the four following ways:

1. DC-brake command, see par. 5-1* choice [5]

2. DC Cut-in function, see par. 2-04

3. DC-brake selected as start function, see par. 1-72

4. DC-brake in connection with

DC-braking time defines the period during which

is applied to the motor.

rent

[0.0 - 60 s] Set the time DC-braking current, set in par. 2-01, must be ap-

plied.

Flying Start

, par. 1-73.

DC-brake cur-

NB!

If DC-brake is activated as start function, DC-brake time is defined by

time

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start delay

4. Parameter Descriptions VLT Micro Drive FC 51

2-04 DC-Brake Cut-in Speed

Range: Function:

0.0 Hz

[0.0 - 400.0 Hz] Set DC-brake cut-in speed to activate DC braking current, set in

par. 2-01, when ramping down. When set to 0 the function is off.

4.3.3. 2-1* Brake Energy Function

Use the parameters in this group for selecting dynamic braking parameters.

2-10 Brake Function

Option: Function:

Resistor Brake:

The resistor brake limits voltage in the intermediate circuit when the motor acts as generator. Without brake resistor, the frequency converter eventually trips.

The resistor brake consumes surplus energy resulting from motor braking. A frequency converter with brake stops a motor faster than without a brake, which is used in many applications. Requires connection of external brake resistor.

An alternative to the resistor brake is the AC brake.

NB!

Resistor brake is only functional in frequency converters with integrated dynamic brake. An external resistor must be connected.

AC Brake:

The AC brake consumes surplus energy by creating power loss in the motor. It is important to keep in mind that an increase in power loss causes motor temperature to rise.

Off No brake function.

[0]

[1] Resistor Brake Resistor brake is active.

[2] AC Brake AC brake is active.

2-11 Brake Resistor (Ohm)

Range: Function:

5 Ω

2-16 AC Brake, Max Current

Range: Function:

100.0 %

[5 - 5000 Ω] Set brake resistor value.

[0.0 - 150.0 %] Enter max. permissible current for AC-braking to avoid over-

heating of motor.

100% equals motor current set in par. 1-24.

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VLT Micro Drive FC 51 4. Parameter Descriptions

2-17 Over-Voltage Control

Option: Function:

Use Over-voltage Control (OVC) to reduce the risk of the frequency converter tripping due to an over voltage on the DC link caused by generative power from the load. An over-voltage occurs eg. if the ramp down time is set too short compared to the actual load inertia.

Disabled The OVC is not active/required.

[0]

[1] Enabled, not at stop OVC is running unless a stop signal is active.

[2] Enabled OVC is running, also when a stop signal is active.

NB!

If Resistor Brake has been chosen in par. 2-10 even though enabled in this parameter.

4.3.4. 2-2* Mechanical Brake

For hoisting applications an electro-magnetic brake is required. The brake is controlled by a relay, which releases the brake when activated.

The brake activates if frequency converter trips or a coast command is given. Furthermore, it activates when motor speed is ramped down below the speed set in par. 2-22,

Speed

2-20 Release Brake Current

Range: Function:

0.00 A

[0.00 - 100 A] Select motor current at which mechanical brake releases.

Brake Function

the OVC is not active

Active Brake

If start delay time has passed, and motor current is below verter trips.

Release brake current

, frequency con-

2-22 Activating Mechanical Brake

Range: Function:

If the motor is stopped using ramp, the mechanical brake is activated when motor speed is less than Motor is ramped down to stop in the following situations:

• A start command is removed (stand by)

• A stop command is activated

• Quick-stop is activated (Q-stop ramp is used)

0 Hz

[0 - 400 Hz] Select motor speed at which mechanical brake activates when

ramping down.

Mechanical brake automatically activates if frequency converter trips or reports an alarm.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

Active Brake Speed

4. Parameter Descriptions VLT Micro Drive FC 51

4.4. Parameter Group 3: Reference/Ramps

4.4.1. 3-** Reference/Ramps

Parameters for reference handling, definition of limitations, and configuration of the frequency converter's reaction to changes

4.4.2. 3-0* Reference Limits

Parameters for setting the reference unit, limits and ranges.

3-00 Reference Range

Option: Function:

Select the range of reference and feedback signals. Values can be both positive and negative, unless par. 1-00,

, is set to

Mode

itive values are allowed.

Min - Max Reference setpoint ranges can have positive values only.

[0]

Select this if running in Process Closed Loop.

[1] -Max - +Max Ranges can have both positive and negative values.

3-02 Minimum Reference

Range: Function:

0.00

3-03 Maximum Reference

Range: Function:

[-4999 - 4999] Enter value for minimum reference.

The sum of all internal and external references are clamped (limited) to the minimum reference value, par. 3-02.

Maximum Reference is adjustable in the range Minimum Reference - 4999.

Process Closed Loop

[3]. In that case only pos-

Configuration

[-4999 - 4999] Enter value for Maximum Reference.

50.00

The sum of all internal and external references are clamped (limited) to the maximum reference value, par. 3-03.

4.4.3. 3-1* References

Parameters for setting up the reference sources. Select the preset references for the corresponding digital inputs in parameter group 5.1*,

3-10* Preset Reference

Option: Function:

Each parameter set-up contains 8 preset references which are selectable via 3 digital inputs or bus.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

Digital Inputs

VLT Micro Drive FC 51 4. Parameter Descriptions

[0.00]

[18]

Bit2

0 0 0 0 001 1 0 1 0 2 011 3 1 0 0 4 101 5 1 1 0 6 111 7

Table 4.1: Par. 5-1* selection [16], [17] and [18]

-100.00 - 100.00% Enter the different preset references using array programming.

Normally, 100% = value set in par. 3-03, However, there are exceptions if par. 3-00 is set to [0].

Example 1: Par. 3-02 is set to 20 and par. 3-03 is set to 50. In this case 0% = 0 and 100% = 50.

Example 2: Par. 3-02 is set to -70 and par. 3-03 is set to 50. In this case 0% = 0 and 100% = 70.

[17]

Bit1

[16] Bit0

Preset reference no.

Maximum Reference

Min - Max

. ,

3-11 Jog Speed [Hz]

Range: Function:

Jog speed is a fixed output speed and overrules the selected reference speed, see par. 5-1* selection [14]. If the motor is stopped while in jog mode, the jog signal acts as a start signal. Removing the jog signal makes the motor run according to the selected configuration.

5.0 Hz [0.0 - 400.0 Hz] Select speed to function as jog speed.

3-12 Catch Up/Slow Down Value

Range: Function:

[0 - 100%] The

Catch-up/Slowdown function

mand (see par. 5-1*, choice [28]/[29]). If the command is active, the Catch-up/Slowdown value (in %) is added to the reference function as follows:

Reference

When the input command is inactivated, the reference returns to its original value ie. Reference = Reference + 0.

Reference+reference

Reference−reference

is activated by an input com-

Catchup Slowdown

100

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4. Parameter Descriptions VLT Micro Drive FC 51

3-14 Preset Relative Reference

Range: Function:

0.00% [-100.00 - 100.00%] Define fixed value in % to be added to variable value defined in par. 3-18,

The sum of fixed and variable values (labelled Y in illustration below) is multiplied with actual reference (labelled X in illustation). This product is added to actual reference

3-15 Reference 1 Source

Option: Function:

Par. 3-15, 3-16 and 3-17 define up to three different reference signals. The sum of these reference signals defines the actual reference.

Relative Scaling Reference Source

100

[0] No Function No reference signal is defined.

Analog Input 53 Use signals from analog input 53 as reference, see par. 6-1*.

[1]

[2] Analog Input 60 Use signals from analog input 60 as reference, see par. 6-2*.

[11] Local Bus Ref. Use signals from local bus as reference, see par. 8-9*.

[21] LCP Potentiometer Use signals from LCP potentiometer as reference, see par. 6-8*.

[8] Pulse input Use signals from pulse input as reference, see par. 5-5*.

3-16 Reference 2 Source

Option: Function:

See Par. 3-15 for description.

[0] No Function No reference signal is defined.

[1] Analog Input 53 Use signals from analog input 53 as reference.

Analog Input 60 Use signals from analog input 60 as reference.

[2]

[11] Local Bus Ref. Use signals from local bus as reference.

[21] LCP Potentiometer Use signals from LCP potentiometer as reference.

3-17 Reference 3 Source

Option: Function:

See Par. 3-15 for description.

[0] No Function No reference signal is defined.

[1] Analog Input 53 Use signals from analog input 53 as reference.

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VLT Micro Drive FC 51 4. Parameter Descriptions

[2] Analog Input 60 Use signals from analog input 60 as reference.

[11]

[21] LCP Potentiometer Use signals from LCP potentiometer as reference.

3-18 Relative Scaling Reference Source

Option: Function:

[0]

[1] Analog Input 53 Select analog input 53 as relative scaling reference source.

[2] Analog Input 54 Select analog input 54 as relative scaling reference source.

[8] Pulse Input 33 Select pulse input 33 as relative scaling reference source.

[11] Local Bus Ref. Select local bus ref. as relative scaling reference source.

[21] LCP Potentiometer Select LCP potentiometer as relative scaling reference source.

Local Bus Ref. Use signals from local bus as reference.

No Function The function is disabled

4.4.4. 3-4* Ramp 1

A linear ramp is characterized by ramping up at a constant speed until the desired motor speed has been reached. Some overshoot may be experienced when reaching speed, which may cause speed jerks for a short while before stabilizing. An S-ramp accelerates more smoothly thus compensating for jerks when the speed is reached.

Select the source for a variable value to be added to the fixed value defined in par. 3-14,

Preset Relative Reference

See the below figure for a comparison of the two ramp types.

Ramp Times:

Ramp up: Acceleration time. From 0 to nominal motor frequency (par. 1-23). Ramp down: Deceleration time. From nominal motor frequency (par. 1-23) to 0.

Limitation:

Too short ramp up time can result in Torque limit warning (W12) and/or DC over voltage warning (W7). Ramping is stopped when the frequency converter has reached Torque limit motor mode (par. 4-16). Too short ramp down time can result in Torque limit warning (W12) and/or DC over voltage warning (W7). Ramping is stopped when the frequency converter reaches the Torque limit generator mode (par. 4-17) and/or the internal DC over voltage limit.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

3-40 Ramp1 Type

Option: Function:

[0]

[2] S-ramp Smooth jerk compensated acceleration/deceleration.

3-41 Ramp1 Ramp-up Time

Range: Function:

3.00 s

3-42 Ramp1 Ramp-down Time

Range: Function:

3.00

Linear Constant acceleration/deceleration.

[0.05 - 3600 s ] Enter ramp-up time from 0 Hz to rated motor frequency (f

set in par. 1-23. Choose a ramp-up time ensuring that torque limit is not exceeded, see par. 4-16.

[0.05 - 3600 s] Enter ramp down time from rated motor frequency (f

1-23 to 0 Hz. Choose a ramp down time that does not cause over-voltage in inverter due to regenerative operation of motor. Furthermore, regenerative torque must not exceed limit set in par. 4-17.

) in par.

M,N

)

4.4.5. 3-5* Ramp2

See par. 3-4* for a description of ramp types.

NB!

Ramp2 - alternative ramp times: Changing from Ramp1 to Ramp2 is done via the digital input. See par. 5-1*, selection [34].

3-50 Ramp2 Type

Option: Function:

[0]

[2] S-ramp Smooth jerk compensated acceleration/deceleration.

3-51 Ramp2 Ramp-up Time

Range: Function:

3.000

Linear Constant acceleration/deceleration.

[0.100 - 3600 s] Enter ramp-up time from 0 Hz to rated motor frequency (f

M,N

set in par. 1-23. Choose a ramp-up time ensuring that output current does not exceed current limit set in par. 4-18 during ramping.

)

3-52 Ramp2 Ramp-down Time

Range: Function:

3.000 s [0.100 - 3600 s] Enter ramp down time from rated motor frequency (f 1-23 to 0 Hz.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

) in par.

M,N

VLT Micro Drive FC 51 4. Parameter Descriptions

Choose a ramp down time that does not cause over-voltage in inverter due to regenerative operation of motor. Furthermore, generated current must not exceed current limit set in par. 4-18.

4.4.6. 3-8* Other Ramps

This section contains parameters for Jog and Quick Stop Ramps.

With a Jog Ramp you can both ramp up and down whereas you can only ramp down with the Quick Stop Ramp.

3-80 Jog Ramp Time

Range: Function:

3.000 s

[0.100 - 3600 s] A linear ramp applicable when Jog is activated. See par. 5-1*,

selection [14]. Ramp up time = Ramp down time.

Jog Ramp time starts upon activation of a jog signal via a selected digital input or serial communication port.

3-81 Quick Stop Ramp Time

Range: Function:

3.000 s

[0.100 - 3600 s] A linear ramp applicable when Q-stop is activated. See par.

5-1*, selection [4].

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4. Parameter Descriptions VLT Micro Drive FC 51

4.5. Parameter Group 4: Limits/Warnings

4.5.1. 4-** Motor Limits

Parameter group for configuring limits and warning.

4.5.2. 4-1* Motor Limits

Use these parameters for defining the speed, torque and current working range for the motor.

4-10 Motor Speed Direction

Option: Function:

If terminals 96, 97 and 98 are connected to U, V and W respectively, the motor runs clockwise when seen from the front.

NB!

This parameter cannot be adjusted while the motor is running

[0] Clockwise The motor shaft rotates in clockwise direction. This setting pre-

vents the motor from running in counterclockwise direction.

If par. 1-00

Loop

[1] Counterclockwise The motor shaft rotates in counterclockwise direction. This set-

ting prevents the motor from running in clockwise direction.

Both With this setting the motor can run in both directions. However,

[2]

the output frequency is limited to the range: Motor Speed Low Limit (par. 4-12) to Motor Speed High Limit (par. 4-14).

4-12 Motor Speed Low Limit

Range: Function:

0.0 Hz

4-14 Motor Speed High Limit

Range: Function:

65.0

[0.0 - 400.0 Hz] Set the

imum output frequency of the motor shaft.

output frequency of the motor shaft.

Configuration mode

[3] this parameter must always be set to

Minimum Motor Speed Limit

NB!

As the minimum output frequency is an absolute value, it cannot be deviated from.

Maximum Motor Speed

has been set to

corresponding to the min-

corresponding to the maximum

Process Closed

Clockwise

NB!

As the maximum output frequency is an absolute value, it cannot be deviated from.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

4-16 Torque Limit in Motor Mode

Range: Function:

150.0 %

4-17 Torque Limit in Generator Mode

Range: Function:

150.0 %

[0.0 - 199.9%] Set the torque limit for motor operation.

The setting is not automatically reset to default when changing settings in par. 1-00 to 1-25

[0.0 - 199.9 %] Set the torque limit for generator mode operation.

The setting is not automatically reset to default when changing settings in par. 1-00 to 1-25

Load & Motor

4.5.3. 4-5* Adjustable Warnings

Parameter group containing adjustable warning limits for current, speed, reference and feedback.

Warnings are shown in display, programmed output or serial bus.

4-50 Warning Current Low

Range: Function:

Use this parameter to set a lower limit for the current range. If current drops below the set limit, a warning occurs.

0.00 A [0.00 - 26.00 A] Set value for low current limit.

4-51 Warning Current High

Range: Function:

Use this parameter to set an upper limit for the current range. If current exceeds the set limit, a warning occurs.

26.00 A

4-58 Missing Motor Phase Function

Option: Function:

[0.00 - 26.00 A] Set upper current limit.

A missing motor phase causes the motor torque to drop. This monitor may be disabled for special purposes (eg. small motors running pure U/f mode), but as there is a risk of overheating the motor, Danfoss strongly recommends that the function is

A missing motor phases causes the frequency converter to trip and report an alarm.

NB!

This parameter cannot be changed while motor runs.

[0] Off Function is disabled.

[1]

On Function is enabled.

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4. Parameter Descriptions VLT Micro Drive FC 51

4.5.4. 4-6* Speed Bypass

In some applications mechanical resonance may occur. Avoid resonance points by creating a bypass. The frequency converter ramps through the bypass area thereby passing mechanical resonance points quickly.

4-61 Speed Bypass From [Hz]

Range: Function:

Array [2]

0.0 Hz

4-63 Speed Bypass To [Hz]

Range: Function:

[0.0 - 400.0 Hz] Enter either the lower or upper limit of the speeds to be avoided.

It does not matter whether Bypass From or Bypass Too is the upper or lower limit, however the Speed Bypass function is disabled if the two parameters are set to the same value.

0.0 Hz

Array [2]

[0.0 - 400.0 Hz] Enter either the upper or lower limit of the speed area to be

avoided. Make sure to enter the opposite li m i t of that in par. 4-6 1

Bypass From [Hz]

Speed

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VLT Micro Drive FC 51 4. Parameter Descriptions

4.6. Parameter Group 5: Digital In/Out

4.6.1. 5-** Digital In/Out

The following describes all digital input command functions and signals.

4.6.2. 5-1* Digital Inputs

Parameters for configuring the functions for the input terminals. The digital inputs are used for selecting various functions in the frequency converter. All digital inputs can be set to the following:

[0] No Operation The frequency converter will not react to signals transmitted to

the terminal.

[1] Reset Reset the frequency converter after a Trip/Alarm. Not all alarms

can be reset.

[2 ] Coast Inverse Coasting stop, inverted input (NC). The frequency converter

leaves the motor in free mode.

[3] Coast and reset inv. Reset and coasting stop inverted input (NC). The frequency

converter resets and leaves the motor in free mode.

[4] Quick stop inverse Inverted input (NC). Generates a stop in accordance with the

quick-stop ramp time set in par. 3-81. When motor stops, shaft is in free mode.

[5] DC-brake inv. Inverted input for DC braking (NC). Stops motor by energizing

it with DC current for a certain time period, see par. 2-01. Function is only active when value in par. 2-02 is different from 0.

[6] Stop inv. Stop inverted function. Generates stop function when selected

terminal goes from logical level “1” to “0”. Stop is performed according to selected ramp time.

[8] Start Select start for a start/stop command.

1 = Start, 0 = stop.

[9] Latched start Motor starts if a pulse is applied for min. 2 ms. Motor stops when

Stop inverse is activated.

[10] Reversing Change direction of motor shaft rotation. Reversing signal only

changes direction of rotation; it does not activate start function.

Both directions

Select 0 = normal, 1 = reversing.

[11] Start reversing Use for start/stop and for reversing at the same time. Signals

on start [8] are not allowed at the same time. 0 = stop, 1 = start reversing.

[2] in par. 4.10.

[12] Enable start forward Use if motor shaft must rotate clockwise at start.

[13] Enable start reverse Use if motor shaft must rotate counterclockwise at start.

[14] Jog Use for activating jog speed. See par. 3-11.

[16] Preset ref bit 0 Preset ref bit 0, 1 and 2 enables a choice between one of the

eight preset references according to the table below.

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4. Parameter Descriptions VLT Micro Drive FC 51

[17] Preset ref bit 1 Same as preset ref bit 0 [16], see par. 3-10.

[18] Preset ref bit 2 Same as preset ref bit 0 [16].

[19] Freeze reference Freeze actual reference. The frozen reference is now the point

of enable/condition for Speed up and Speed down to be used. If Speed up/down is used, speed change always follows ramp 2 (par. 3-51 and 3-52) in the range par. 3-02

- par. 3-03

ence

[20] Freeze output Freeze the actual motor frequency (Hz). The frozen motor fre-

quency is now the point of enable/condition for Speed up and Speed down to be used. If Speed up/down is used, the speed change always follows ramp 2 in the range par. 4-12,

Speed Low Limit

Maximum Reference

- par. 4-14,

NB!

When freeze output is active, the frequency converter cannot be stopped via a low Stop the frequency converter via a terminal programmed for Coasting Inverse [2] or Coast and reset, inverse [3].

Motor Speed High Limit

Minimum Refer-

Motor

Start

[8] signal.

[21] Speed up Select Speed up and Speed down if digital control of the up/

down speed is desired (motor potentiometer). Activate this function by selecting either Freeze reference or Freeze output. When Speed up is activated for less than 400 ms. the resulting reference will be increased by 0.1%. If Speed up is activated for more than 400 ms. the resulting reference will ramp according to ramp 2 in par. 3-51.

[22] Speed down Same as Speed up [21].

[23] Setup select bit 0 Set par. 0-10

Logic 0 = set-up 1, Logic 1 = Set-up 2.

[26] Precise stop inverse Prolong the stop signal to give a precise stop independent of

scan time. The function is available for terminal 33 only.

[27] Start, precise stop As [26], but including Start.

[28] Catch up Select Catch up/Slow down to increase or reduce the resulting

reference value by the percentage set in par. 3-12.

[29] Slow down Same as Catch up [28]

[32] Pulse input (only ter-

minal 33)

[34] Ramp bit 0 Logic 0 = Ramp1, see par. 3-4*.

Select Pulse input when using a pulse sequence as either reference or feedback. Scaling is done in par. group 5-5*.

Logic 1 = Ramp2, see par. 3-5*.

Active set-up

to Multi set-up.

[60] Counter A (up) Input for counter A.

[61] Counter A (down) Input for counter A.

[62] Reset counter A Input for reset of counter A.

[63] Counter B (up) Input for counter B.

[64] Counter B (down) Input for counter B.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

[65] Reset counter B Input for reset of counter B.

5-10 Terminal 18 Digital Input

Option: Function:

[8]

5-11 Terminal 19 Digital Input

Option: Function:

[10]

5-12 Terminal 27 Digital Input

Option: Function:

[0]

Start Select function from available digital input range.

See par. 5-1* for choices.

Reversing Select function from available digital input range.

See par. 5-1* for choices.

No Operation Select function from available digital input range.

See par. 5-1* for choices.

5-13 Terminal 29 Digital Input

Option: Function:

[14]

5-15 Terminal 33 Digital Input

Option: Function:

[0]

Jog Select function from available digital input range.

No Operation Select function from available digital input range.

4.6.3. 5-4* Relays

Parameter group for configuring timing and output functions for relays.

[0] No Operation Default for all digital and relay outputs.

[1] Control Ready Control board receives supply voltage.

[2] Drive Ready Frequency converter is ready for operation and applies supply

[3] Drive Ready, Remote Frequency converter is ready for operation in Auto On-mode.

See par. 5-1* for choices.

signal on control board.

[4] Enable/No Warning Frequency converter is ready for operation. No start or stop

command is given. No warnings are present.

[5] Drive Running Motor is running.

[6] Running/No Warning Motor runs, and no warning are present.

[7] Run in Range/No

Warning

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Motor runs within programmed current ranges, see parameters 4-50 and 4-51. No warnings are present.

4. Parameter Descriptions VLT Micro Drive FC 51

[8] Run on ref/No Warn-

ing

[9] Alarm An alarm activates output.

[10] Alarm on Warning An alarm or warning activates output.

[12] Out of Current Range Motor current is outside range set in parameters 4-50 and 4-51.

[13] Below Current, low Motor current is lower than set in par. 4-50.

[14] Above Current, high Motor current is higher than set in par. 4-51.

[21] Thermal Warning Thermal warning is present when temperature exceeds limit in

[22] Ready, No Thermal

Warning

[23] Remote Ready, No

Thermal Warning

[24] Ready, Voltage OK Frequency converter is ready for operation and mains voltage is

[25] Reverse Motor runs/is ready to run clockwise when logic = 0 and counter

Motor runs at reference speed.

motor, frequency converter, brake resistor or thermistor.

Frequency converter is ready for operation and no over-temperature warning is present.

Frequency converter is ready for operation in Auto mode, and no over-temperature warning is present.

within specified voltage range.

clockwise when logic = 1. Output changes as soon as reversing signal is applied.

[26] Bus OK Active communication (no time-out) via serial communication

port.

[28] Brake, No Warn Brake is active, and no warnings are present.

[29] Brake Ready/No Fault Brake is ready for operation, and no faults are present.

[30] Brake Fault (IGBT) Protects frequency converter if fault on brake modules is

present. Use relay to cut out main voltage from frequency converter.

[32] Mech. Brake Control Enables control of external mechanical brake, see parameter

group 2-2*.

[36] Control Word Bit 11 Bit 11 in control word controls relay.

[51] Local Ref Active

[52] Remote Ref Active

[53] No Alarm

[54] Start Cmd Active

[55] Running Reverse

[56] Drive in Hand Mode

[57] Drive in Auto Mode

[60] Comparator 0 See par. group 13-1*. If comparator 0 is evaluated as TRUE,

output goes high. Otherwise, it is low.

[61] Comparator 1 See par. group 13-1*. If comparator 1 is evaluated as TRUE,

output goes high. Otherwise, it is low.

[62] Comparator 2 See par. group 13-1*. If comparator 2 is evaluated as TRUE,

output goes high. Otherwise, it is low.

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VLT Micro Drive FC 51 4. Parameter Descriptions

[63] Comparator 3 See par. group 13-1*. If comparator 3 is evaluated as TRUE,

output goes high. Otherwise, it is low.

[70] Logic Rule 0 See par. 13-4*. If Logic Rule 1 is evaluated as TRUE, output

goes high. Otherwise, it is low.

[71] Logic Rule 1 See par. 13-4*. If Logic Rule 2 is evaluated as TRUE, output

goes high. Otherwise, it is low.

[72] Logic Rule 2 See par. 13-4*. If Logic Rule 3 is evaluated as TRUE, output

goes high. Otherwise, it is low.

[73] Logic Rule 3 See par. 13-4*. If Logic Rule 3 is evaluated as TRUE, output

[81] SL Digital Output B See par. 13-52

5-40 Function Relay

Option: Function:

[0]

No Operation Select function from available relay output range.

4.6.4. 5-5* Pulse Input

Set par. 5-15 to choice [32] pulse input. Now terminal 33 handles a pulse input in the range from Low frequency, par. 5-55, to High frequency, par. 5-56. Scale frequency input via par. 5-57 and par. 5-58.

5-55 Terminal 33 Low Frequency

Range: Function:

20 Hz

[20 - 4999 Hz] Enter low frequency corresponding to low motor shaft speed

goes high. Otherwise, it is low.

SL Control Action

dig. out. A high

Logic Action

(i.e. low reference value) in par. 5-57.

[39] is executed, input goes high. When Smart

Set dig. out. A low

. When Smart Logic Action

[33] is executed, input goes low.

Set

5-56 Terminal 33 High Frequency

Range: Function:

5000 Hz

5-57 Terminal 33 Low Ref./Feedb. Value

Range: Function:

0.000

5-58 Terminal 33 High Ref./Feedb. Value

Range: Function:

50.000

[21 - 5000 Hz] Enter high frequency corresponding to high motor shaft speed

[-4999 - 4999] Set reference/feedback value corresponding to low pulse fre-

[-4999 - 4999] Set reference/feedback value corresponding to high pulse fre-

(i.e. high reference value) in par. 5-58.

quency value set in par. 5-55.

quency value set in par. 5-56.

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4. Parameter Descriptions VLT Micro Drive FC 51

4.7. Parameter Group 6: Analogue In/Out

4.7.1. 6-** Analog In/Out

Parameter group for configuring analog inputs and outputs.

4.7.2. 6-0* Analog I/O Mode

Parameter group for setting up the analog I/O configuration.

6-00 Live Zero Timeout Time

Range: Function:

The Live Zero function is used for monitoring the signal on an analog input. If the signal disappears, a reported.

Live Zero

warning is

10 s [1 - 99 s] Set delay time before

6-01). If the signal reappears during the set delay, timer will be reset.

When live zero is detected, the frequency converter freezes output frequency and starts

6-01 Live Zero Timeout Function

Option: Function:

Function is activated if input signal is below 50% of value set in parameters 6-10, 6-12 or 6-22.

[0]

[1] Freeze output Output frequency remains at value it had when live zero was

[2] Stop Frequency converter ramps down to 0 Hz. Remove live zero er-

[3] Jogging Frequency converter ramps to jog speed, see par. 3-41.

[4] Max Speed Frequency converter ramps to Motor Speed High Limit, see par.

[5] Stop and Trip Frequency converter ramps down to 0 Hz and then trips. Re-

Off Function is disabled.

detected.

ror condition before restarting frequency converter.

4-14.

move live zero condition and activate reset before restarting the frequency converter.

Live Zero Timeout Function

Live Zero Timeout

is applied (par.

timer.

4.7.3. 6-1* Analog Input 1

Parameters for configuring scaling and limits for analog input 1 (terminal 53).

NB!

Micro switch 4 in position U: Parameters 6-10 and 6-11 are active. Micro switch in position I: Parameters 6-12 and 6-13 are active.

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VLT Micro Drive FC 51 4. Parameter Descriptions

6-10 Terminal 53 Low Voltage

Range: Function:

This scaling value should correspond to minimum reference value set in par. 6-14. See also section

Reference Handling

0.07 V

6-11 Terminal 53 High Voltage

Range: Function:

10.0 V

6-12 Terminal 53 Low Current

Range: Function:

0.14 mA

[0.00 - 9.90 V] Enter low voltage value.

This scaling value should correspond to maximum reference value set in par. 6-15.

[0.10 - 10.00 V] Enter high voltage value.

This reference signal should correspond to minimum reference value set in par. 3-02.

[0.00 - 19.90 mA] Enter low current value.

The value must be set to min. 2 mA in order to activate the Live Zero Timeout function in par. 6-01.

6-13 Terminal 53 High Current

Range: Function:

This reference signal should correspond to the maximum reference value set in par. 6-15.

20.00 mA

[0.10 - 20.00 mA] Enter high current value.

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4. Parameter Descriptions VLT Micro Drive FC 51

6-14 Terminal 53 Low Ref./Feedb. Value

Range: Function:

The scaling value corresponding to the low voltage/low current set in parameters 6-10 and 6-12.

[-4999 - 4999] Enter analog input scaling value.

0.000

6-15 Terminal 53 High Ref./Feedb. Value

Range: Function:

The scaling value corresponding to the maximum reference feedback value set in parameters 6-11 and 6-13.

[-4999 - 4999] Enter analog input scaling value.

50.00

6-16 Terminal 53 Filter Time Constant

Range: Function:

A first-order digital low pass filter time constant for suppressing electrical noise in terminal 53. A high time constant value improves dampening but also increases time delay through the filter.

[0.001 - 10.00 s] Enter time constant.

0.001 s

NB!

This parameter cannot be adjust while motor is running.

6-19 Terminal 53 Mode

Option: Function:

[0]

[1] Current Mode

Voltage Mode

4.7.4. 6-2* Analog Input 2

Parameters for configuring scaling and limits for analog input 2, terminal 60.

Select the input to be present on terminal 53.

Par. 6-19 MUST be set according to Micro switch 4 setting.

6-22 Terminal 60 Low Current

Range: Function:

This reference signal should correspond to minimum reference value set in par. 3-02.

0.14

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[0.00 - 19.90 mA] Enter low current value.

VLT Micro Drive FC 51 4. Parameter Descriptions

The value must be set to min. 2 mA in order to activate the Live Zero Timeout function in par. 6-01.

6-23 Terminal 60 High Current

Range: Function:

This reference signal should correspond to the high current value set in par. 6-25.

20.00 mA

6-24 Terminal 60 Low Ref./Feedb. Value

Range: Function:

0.000

6-25 Terminal 60 High Ref./Feedb. Value

Range: Function:

50.00

6-26 Terminal 54 Filter Time Constant

Range: Function:

[0.10 - 20.00 mA] Enter high current value.

The scaling value should correspond to the minimum reference feedback value set in par. 3-02.

[-4999 - 4999] Enter analog input scaling value.

The scaling value should correspond to the maximum reference feedback value set in par. 3-03.

[-4999 - 4999] Enter analog input scaling value.

A first-order digital low pass filter time constant for suppressing electrical noise in terminal 54. A high time constant value improves dampening, but also increases time delay through the filter.

0.001 s

[0.001 - 10.00 s] Enter time constant.

4.7.5. 6-8* LCP Potmeter

The LCP potmeter can be selected either as Reference Resource or Relative Reference Resource.

NB!

In Hand mode the LCP potmeter functions as local reference.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

NB!

This parameter cannot be changed while motor runs.

4. Parameter Descriptions VLT Micro Drive FC 51

6-81 LCP Potmeter Low Ref. Value

Range: Function:

The scaling value corresponding to 0.

[-4999 - 4999] Enter low reference value.

0.000 The reference value corresponding to potentiometer turned fully counterclockwise (0 degrees).

6-82 LCP Potmeter High Ref. Value

Range: Function:

The scaling value corresponding to the maximum reference feedback value set in par. 3-03.

[-4999 - 4999] Enter high reference value.

50.00 The reference value corresponding to potentiometer turned fully clockwise (200 degrees).

4.7.6. 6-9* Analog Output

These parameters are for configuring the analog outputs of the frequency converter.

6-90 Terminal 42 Mode

Option: Function:

[0]

[1] 4-20 mA Range for analog outputs is 4 - 20 mA

[2] Digital Functions as slow reacting digital output. Set value to either 0

6-91 Terminal 42 Analog Output

Option: Function:

[0]

[10] Output Frequency

[11] Reference

[12] Feedback

[13] Motor Current

[16] Power

[17] Speed

0 - 20 mA Range for analog outputs is 0-20 mA

mA (off) or 20 mA (on), see par. 6-92.

Select the function for terminal 42 as an analog output.

No Operation

6-92 Terminal 42 Digital Output

Option: Function:

Relays

See par. 5-4*,

[80] SL Digital Output A See par. 13-52

dig. out. A high

Logic Action

MG.02.C2.02 - VLT® is a registered Danfoss trademark

Set dig. out. A low

, for choices and descriptions.

SL Control Action

[38] is executed, input goes high. When Smart

. When Smart Logic Action

[32] is executed, input goes low.

Set

VLT Micro Drive FC 51 4. Parameter Descriptions

6-93 Terminal 42 Output Min. Scale

Range: Function:

0.00 % [0.00 - 200.0%] Scale minimum output of selected analog signal at terminal 42 as percentage of maximum signal value. E.g. if 0 mA (or 0 Hz) is desired at 25% of maximum output value, programme 25%. Scaling values up to 100% can never be higher than corresponding setting in par. 6-52.

6-94 Terminal 42 Output Max. Scale

Range: Function:

100%

[0 - 200%] Scale maximum output of selected analog signal at terminal 42.

Set value to maximum value of current signal output. Scale output to give a current lower than 20 mA at full scale; or 20 mA at an output below 100% of maximum signal value.

If 20 mA is the desired output current at a value between 0 100% of the full-scale output, programme percentage value in the parameter, i.e. 50% = 20 mA. If a current between 4 and 20 mA is desired at maximum output (100%), calculate percentage value as follows:

desired maximum current

i.e.

×100=200%

× 100 %

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

4.8. Parameter Group 7: Controllers

4.8.1. 7-** Controllers

Parameters group for configuring application controls.

4.8.2. 7-2* Process Ctrl. Feedb

Select feedback sources and handling for Process PI Control.

7-20 Process CL Feedback Resources

Option: Function:

Select input to function as feedback signal.

No Function

[0]

[1] Analog Input 53

[2] Analog Input 60

[8] Pulse Input 33

[11] Local Bus Ref.

4.8.3. 7-3* Process PI Control

7-30 Process PI Normal/Inverse Control

Option: Function:

[0]

[1] Inverse Feedback larger than setpoint result in a speed increase.

7-31 Process PI Anti Windup

Option: Function:

[0] Disable Regulation of a given error will continue even when the output

[1]

7-32 Process PI Start Speed

Range: Function:

0.0 Hz

Normal Feedback larger than setpoint result in a speed reduction.

Feedback less than setpoint result in a speed increase.

Feedback less than setpoint result in a speed reduction.

frequency cannot be increased/decreased.

Enable PI-controller ceases from regulating a given error when the out-

put frequency cannot be increased/decreased.

[0.0 - 200.0 Hz] Until the set motor speed has been reached the frequency con-

verter operates in Open Loop mode.

7-33 Process PI Proportional Gain

Option: Function:

[0.01]

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0.00 - 10.00 Enter the value for the P proportional gain, i.e. the multiplication

factor of the error between the set point and the feedback signal. Note! 0.00 = Off.

VLT Micro Drive FC 51 4. Parameter Descriptions

7-34 Process PI Integral Time

Range: Function:

9999 s

7-38 Process Feed Forward Factor

Range: Function:

7-39 On Reference Bandwidth

Range: Function:

5% [0 - 200% ] Enter the value for the On Reference Bandwidth.

[0.01 - 999.0 s] The integrator provides an increasing gain at a constant error

between the set point and the feedback signal. The integral time is the time needed by the integrator to reach the same gain as the proportional gain.

[0 - 400%] The FF factor sends a part of the reference signal around the PI

controller which then only affects part of the control signal. By activating the FF factor less overshoot and high dynamics are gained when changing the setpoint. This parameter is always active when par. 1-00

is set to

Mode

The PI control error is the difference between setpoint and feedback and when this is less than the value set in this parameter the On Reference is active.

Process

[3].

Configuration

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

4.9. Parameter Group 8: Communication

4.9.1. 8-** Communication

Parameter group for configuring communication.

4.9.2. 8-0* General Settings

Use this parameter group for configuring the general settings for communication.

8-01 Control Site

Option: Function:

Digital and Control

[0]

Word

[1] Digital Only Use digital input as control.

[2] Control Word Only Use control word only as control.

Use both digital input and control word as control.

NB!

The setting in this parameter overrules settings in par. 8-50 to 8-56.

8-02 Control Word Source

Option: Function:

[0] None Function is inactive

[1]

8-03 Control Word Timeout Time

Range: Function:

1.0 s

8-04 Control Word Timeout Function

Option: Function:

FC RS485 Monitoring control word source is done via serial communication

port RS485.

[0.1 - 6500 s] Enter time to pass before control word timeout function (par.

8-04) must be carried out.

Select the action to be taken in case of a timeout.

[0]

[1] Freeze Output Freeze output until communication resumes.

[2] Stop Stop with auto restart when communication resumes.

[3] Jogging Run motor at jog frequency until communication resumes.

[4] Max. Speed Run motor at max. frequency until communication resumes.

[5] Stop and Trip Stop motor, then reset frequency converter in order to restart

MG.02.C2.02 - VLT® is a registered Danfoss trademark

Off No function.

either via LCP or digital input.

VLT Micro Drive FC 51 4. Parameter Descriptions

[7] Select Set-up 1 Change to Set-up 1 upon reestablishment of communication

following a control word timeout.

[8] Select Set-up 2 Change to Set-up 2 upon reestablishment of communication

following a control word timeout.

8-06 Reset Control Word Timeout

Option: Function:

Resetting the control word timeout will remove any timeout function.

No Function Control word timeout is not reset.

[0]

[1] Do Reset Control word timeout is reset, and parameter goes into

4.9.3. 8-3* FC Port Settings

Parameters for configuring the FC Port.

4.9.4. 8-30 Protocol

8-30 Protocol

Option: Function:

[0]

[2] Modbus

8-31 Address

Range: Function:

[1 - 126] FC -bus range is 1-126.

Function

Select the protocol to be used. Note that changing protocol will not be effective until after powering off the frequency converter.

Select the address for the bus.

Modbus range is 1-247.

state.

8-32 FC Port Baud Rate

Option: Function:

Select baud rate for FC Port.

[0] 2400 Baud

[1] 4800 Baud

9600 Baud

MG.02.C2.02 - VLT® is a registered Danfoss trademark

[2]

NB!

Changing baud rate will be effective after responding to any ongoing bus-requests.

4. Parameter Descriptions VLT Micro Drive FC 51

8-33 FC Port Parity

Option: Function:

This parameter only affects Modbus as FC bus always has even parity.

No Parity

[0]

[1] Odd parity

[2] No Parity (2 stopbit)

[3] No Parity (1 stopbit)

8-35 Minimum Response Delay

Range: Function:

10 ms [1 - 500 ms] Specify minimum delay time between receiving a request and

8-36 Max Response Delay

Range: Function:

5.000 s

[0.010 - 10.00 s] Specify maximum permissible delay time between transmitting

4.9.5. 8-5* Digital/Bus

Parameters for configuring control word Digital/Bus merging.

NB!

Parameters are only active when par. 8-01,

[0].

word

8-50 Coasting Select

Option: Function:

transmitting a response.

a request and receiving a response. Exceeding this time delay causes control word timeout.

Control SIte

Select control of coasting function via digital input and/or bus.

, is set to

Digital and control

[0] Digital Input Activation via a digital input.

[1] Bus Activation via serial communication port.

[2] LogicAnd Activation via serial communication port and a digital input.

LogicOr Activation via serial communication port or a digital input.

[3]

8-51 Quick Stop Select

Option: Function:

Select control of quick stop function via digital input and/or bus.

[0] Digital Input Activation via a digital input.

[1] Bus Activation via serial communication port.

[2] LogicAnd Activation via serial communication port and a digital input.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

[3]

8-52 DC Brake Select

Option: Function:

[0] Digital Input Activation via a digital input.

[1] Bus Activation via serial communication port.

[2] LogicAnd Activation via serial communication port and a digital input.

[3]

8-53 Start Select

Option: Function:

[0] Digital Input Activation via a digital input.

[1] Bus Activation via serial communication port.

[2] LogicAnd Activation via serial communication port and a digital input.

[3]

LogicOr Activation via serial communication port or a digital input.

Select control of DC brake via digital input and/or bus.

LogicOr Activation via serial communication port or a digital input.

Select control of start function via digital input and/or bus.

LogicOr Activation via serial communication port or a digital input.

8-54 Reversing Select

Option: Function:

Select control of reversing function via digital input and/or bus.

[0] Digital Input Activation via a digital input.

[1] Bus Activation via serial communication port.

[2] LogicAnd Activation via serial communication port and a digital input.

LogicOr Activation via serial communication port or a digital input.

[3]

8-55 Set-up Select

Option: Function:

Select control of set-up selection via digital input and/or bus.

[0] Digital Input Activation via a digital input.

[1] Bus Activation via serial communication port.

[2] LogicAnd Activation via serial communication port and a digital input.

LogicOr Activation via serial communication port or a digital input.

[3]

8-56 Preset Reference Select

Option: Function:

Select control of Preset Reference selection via digital input and/ or bus.

[0] Digital Input Activation via a digital input.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

[1] Bus Activation via serial communication port.

[2] LogicAnd Activation via serial communication port and a digital input.

[3]

LogicOr Activation via serial communication port or a digital input.

4.9.6. 8-9* Bus Feedback

Parameter for configuring bus feedback.

8-94 Bus Feedback 1

Range: Function:

[0x8000 - 0x7FFF] Bus feedback is delivered via FC or Modbus by writing the feed-

back value into this parameter.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

4.10. Parameter Group 13: Smart Logic

4.10.1. 13-** Programming Features

Smart Logic Control (SLC) is a sequence of user defined actions (par. 13-52 [X]) executed by the

True

SLC when the associated user defined event (par. 13-51 [X]) is set to

Events and actions are linked in pairs, meaning that when an event is true, the linked action is carried out. After this the next event is evaluated and its belonging action carried out and so on. Only one event is evaluated at the time.

If an event is evaluated as events are evaluated.

It is possible to programme from 1 to 6 events and actions. When the last event/action has been executed, the sequence starts again from event/action [0].

The drawing shows an example with three events/actions:

False

, the SLC takes no action during the scan interval and no other

Starting and stopping the SLC:

Start the SLC by selecting evaluated as TRUE, the SLC continues its cycle.

The SLC stops when the

Off

[0] in par. 13-00.

To reset all SLC parameters select

[1] in par. 13-00. The SLC starts evaluating Event 0, and if this is

Stop Event

4.10.2. 13-0* SLC Settings

Use SLC settings to activate, deactive and reset the Smart Logic Control.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

, par. 13-02, is TRUE. The SLC can also be stopped by selecting

Reset SLC

[1] in par. 13-03 and start programming from scratch.

4. Parameter Descriptions VLT Micro Drive FC 51

13-00 SL Controller Mode

Option: Function:

[0]

[1] On SLC is active.

13-01 Start Event

Option: Function:

[0] False Enters

[1] True Enters

[2] Running See par. 5-4* [5] for description.

[3] InRange See par. 5-4* [7] for description.

[4] OnReference See par. 5-4* [8] for description.

[7] Out of Current Range See par. 5-4* [12] for description.

Off Function is disabled.

Select input to activate Smart Logic Control.

False

True

in logic rule.

[8] BelowILow See par. 5-4* [13] for description.

[9] AboveIHigh See par. 5-4* [14] for description.

[16] ThermalWarning See par. 5-4* [21] for description.

[17] MainsOutOfRange Mains voltage is outside the specified voltage range.

[18] Reversing See par. 5-4* [25] for description.

[19] Warning A warning is active.

[20] Alarm_Trip A trip alarm is active.

[21] Alarm_TripLock A trip lock alarm is active.

[22] Comparator 0 Use result of comparator 0 in logic rule.

[23] Comparator 1 Use result of comparator 1 in logic rule.

[24] Comparator 2 Use result of comparator 2 in logic rule.

[25] Comparator 3 Use result of comparator 3 in logic rule.

[26] LogicRule 0 Use result of logic rule 0 in logic rule.

[27] LogicRule 1 Use result of logic rule 1 in logic rule.

[28] LogicRule 2 Use result of logic rule 2 in logic rule.

[29] LogicRule 3 Use result of logic rule 3 in logic rule.

[33] DigitalInput_18 Use value of DI 18 in logic rule.

[34] DigitalInput_19 Use value of DI 19 in logic rule.

[35] DigitalInput_27 Use value of DI 27 in logic rule.

[36] DigitalInput_29 Use value of DI 29 in logic rule.

StartCommand This event is

[39]

means (digital input or other).

MG.02.C2.02 - VLT® is a registered Danfoss trademark

True

, if frequency converter is started by any

VLT Micro Drive FC 51 4. Parameter Descriptions

[40] DriveStopped This event is

by any means (digital input or other).

13-02 Stop Event

Option: Function:

Select input to activate Smart Logic Control.

[0] False Enters

[1] True Enters

[2] Running See par. 5-4* [5] for description.

[3] InRange See par. 5-4* [7] for description.

[4] OnReference See par. 5-4* [8] for description.

[7] Out of Current Range See par. 5-4* [12] for description.

[8] BelowILow See par. 5-4* [13] for description.

[9] AboveIHigh See par. 5-4* [14] for description.

[16] ThermalWarning See par. 5-4* [21] for description.

[17] MainsOutOfRange Mains voltage is outside the specified voltage range.

[18] Reversing See par. 5-4* [25] for description.

True

False

in logic rule.

True

in logic rule.

, if frequency converter is stopped or coasted

[19] Warning A warning is active.

[20] Alarm_Trip A trip alarm is active.

[21] Alarm_TripLock A trip lock alarm is active.

[22] Comparator 0 Use result of comparator 0 in logic rule.

[23] Comparator 1 Use result of comparator 1 in logic rule.

[24] Comparator 2 Use result of comparator 2 in logic rule.

[25] Comparator 3 Use result of comparator 3 in logic rule.

[26] LogicRule 0 Use result of logic rule 0 in logic rule.

[27] LogicRule 1 Use result of logic rule 1 in logic rule.

[28] LogicRule 2 Use result of logic rule 2 in logic rule.

[29] LogicRule 3 Use result of logic rule 3 in logic rule.

[30] SL Timeout0 Use result of timer 0 in logic rule.

[31] SL Timeout1 Use result of timer 1 in logic rule.

[32] SL Timeout2 Use result of timer 2 in logic rule.

[33] DigitalInput_18 Use value of DI 18 in logic rule.

[34] DigitalInput_19 Use value of DI 19 in logic rule.

[35] DigitalInput_27 Use value of DI 27 in logic rule.

[36] DigitalInput_29 Use value of DI 29 in logic rule.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

[39] StartCommand This event is

[40]

13-03 Reset SLC

Option: Function:

[0]

[1] Reset SLC Reset all group 13 parameters to default settings.

DriveStopped This event is

Do Not Reset Retains all settings programmed in parameter group 13.

4.10.3. 13-1* Comparators

Comparators are used for comparing continuous variables (i.e. output frequency, output current, analog input etc.) to fixed preset values. In addition, there are digital values that will be compared to fixed time values. See explanation in par. 13-10. Comparators are evaluated once in each scan interval. Use the result (TRUE or FALSE) directly. All parameters in this parameter group are array parameters with index 0 to 5. Select index 0 to programme Comparator 0, select index 1 to programme Comparator 1, and so on.

13-10 Comparator Operand

Array [4]

True

, if frequency converter is started by any

means (digital input or other).

True

, if frequency converter is stopped or coasted

by any means (digital input or other).

Select variable to be monitored by comparator.

Disabled Comparator is disabled.

[0]

[1] Reference Resulting remote reference (not local) as a percentage.

[2] Feedback Feedback in either [RPM] or [Hz].

[3] MotorSpeed Motor speed in Hz.

[4] MotorCurrent Motor current in [A].

[6] MotorPower Motor power in either [kW] or [Hz].

[7] MotorVoltage Motor voltage in [V].

[8] DCLinkVoltage DC-link voltage in [V].

[9] MotorThermal Expressed as a percentage.

[10] DriveThermal Expressed as a percentage.

[11] HeatSink Tempera-

ture

[12] AnalogInput53 Expressed as a percentage.

[13] AnalogInput60 Expressed as a percentage.

[18] PulseInput33 Expressed as a percentage.

[20] AlarmNumber Shows number of the alarm.

Expressed as a percentage.

[30] CounterA Number of counts.

[31] CounterB Number of counts.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

13-11 Comparator Operator

Array [4]

Select operator to be used in comparison.

True

[0] Less Than < Result of evaluation is

smaller than fixed value in par. 13-12. Result is selected in par. 13-10 is greater than fixed value in par. 13-12.

if variable selected in par. 13-10 is

False

if variable

[1]

[2] Greater Than > Inverse logic of option [0].

13-12 Comparator Value

Array [4]

0.0

Approximately equals≈Result of evaluation is

[-9999 - 9999] Enter “trigger level” for variable monitored by this comparator.

4.10.4. 13-2* Timers

Use the timer results to define an event (par. 13-51) or as boolean input in a logic rule (par. 13-40, 13-42 or 13-44).

When timer value has elapsed timer changes state from

13-20 SL Controller Timer

Array [3]

0.0 s

[0.0 - 3600 s] Enter value to define duration of the

True

if variable selected in par. 13-10 is

approximately equal to fixed value in par. 13-12.

False

True

False

output from pro-

False

grammed timer. A timer is only and until the given timer value has elapsed.

if it is started by an action

4.10.5. 13-4* Logic Rules

Combine up to three boolean inputs (TRUE / FALSE inputs) from timers, comparators, digital inputs, status bits and events using the logical operators AND, OR, and NOT. Select boolean inputs for the calculation in par. 13-40, 13-42, and 13-44. Define the operators used to logically combine the selected inputs in par. 13-41 and 13-43.

Priority of calculation

The results of par. 13-40, 13-41, and 13-42 are calculated first. The outcome (TRUE / FALSE) of this calculation is combined with the settings of par. 13-43 and 13-44, yielding the final result (TRUE / FALSE) of the logic rule.

13-40 Logic Rule Boolean 1

Array [4]

[0]

[1] True Enters

[2] Running See par. 5-4* [5] for description.

[3] InRange See par. 5-4* [7] for description.

False Enters

Select first boolean input for selected logic rule.

False

in logic rule.

True

in logic rule.

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4. Parameter Descriptions VLT Micro Drive FC 51

[4] OnReference See par. 5-4* [8] for description.

[7] See par. 5-4* [12] for description.

[8] BelowILow See par. 5-4* [13] for description.

[9] AboveIHigh See par. 5-4* [14] for description.

[16] ThermalWarning See par. 5-4* [21] for description.

[17] MainsOutOfRange Mains voltage is outside the specified voltage range.

[18] Reversing See par. 5-4* [25] for description.

[19] Warning A warning is active.

[20] Alarm_Trip A trip alarm is active.

[21] Alarm_TripLock A trip lock alarm is active.

[22] Comparator 0 Use result of comparator 0 in logic rule.

[23] Comparator 1 Use result of comparator 1 in logic rule.

[24] Comparator 2 Use result of comparator 2 in logic rule.

[25] Comparator 3 Use result of comparator 3 in logic rule.

[26] LogicRule 0 Use result of logic rule 0 in logic rule.

[27] LogicRule 1 Use result of logic rule 1 in logic rule.

[28] LogicRule 2 Use result of logic rule 2 in logic rule.

[29] LogicRule 3 Use result of logic rule 3 in logic rule.

[30] SL Timeout0 Use result of timer 0 in logic rule.

[31] SL Timeout1 Use result of timer 1 in logic rule.

[32] SL Timeout2 Use result of timer 2 in logic rule.

[33] DigitalInput_18 Use value of DI 18 in logic rule.

[34] DigitalInput_19 Use value of DI 19 in logic rule.

[35] DigitalInput_27 Use value of DI 27 in logic rule.

[36] DigitalInput_29 Use value of DI 29 in logic rule.

True

[39] StartCommand This event is

means (digital input or other).

[40] DriveStopped This event is

by any means (digital input or other).

13-41 Logic Rule Operator 1

Array [4]

Select first logical operator to use on boolean inputs from par. 13-40 and 13-42.

Disabled Ignores parameters 13-42, 13-43 and 13-44.

[0]

[1] And Evaluates expression [13-40] AND [13-42].

[2] Or Evaluates expression [13-40] OR [13-42].

, if frequency converter is started by any

True

, if frequency converter is stopped or coasted

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VLT Micro Drive FC 51 4. Parameter Descriptions

[3] And not Evaluates expression [13-40] AND NOT [13-42].

[4] Or not Evaluates expression [13-40] OR NOT [13-42].

[5] Not and Evaluates expression NOT [13-40] and [13-42].

[6] Not or Evaluates expression NOT [13-40] OR [13-42].

[7] Not and not Evaluates expression NOT [13-40] AND [13-40].

[8] Not or not Evaluates expression NOT [13-40] OR NOT [13-42].

13-42 Logic Rule Boolean 2

Array [4]

Select second boolean input for selected logic rule.

See par. 13-40 for choices and descriptions.

13-43 Logic Rule Operator 2

Array [4]

Select second logical operator to use on boolean inputs calculated in par. 13-40, 13-41, and 13-42 and the boolean input from par. 13-42.

[0]

[1] And Evaluates expression [13-40/13-42] AND [13-44].

[2] Or Evaluates expression [13-40/13-42] OR [13-44].

[3] And not Evaluates expression [13-40/13-42] AND NOT [13-44].

[4] Or not Evaluates expression [13-40/13-42] OR NOT [13-44].

[5] Not and Evaluates expression NOT [13-40/13-42] and [13-44].

[6] Not or Evaluates expression NOT [13-40/13-42] OR [13-44].

Disabled Ignores parameter 13-44.

[7] Not and not Evaluates expression NOT [13-40/13-42] AND [13-44].

[8] Not or not Evaluates expression NOT [13-40/13-42] OR NOT [13-44].

13-44 Logic Rule Boolean 3

Array [4]

4.10.6. 13-5* States

Parameters for programming the Smart Logic Controller.

13-51 SL Controller Event

Array [20]

Select third boolean input for selected logic rule.

See par. 13-40 for choices and descriptions.

Select boolean input to define Smart Logic Controller Event.

See par. 13-40 for choices and descriptions.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

13-52 SL Controller Action

Array [20]

Select action corresponding to SLC event. Actions are executed

True

when corresponding event (par. 13-51) is evaluated as

[0]

[1] No Action No action is taken.

[2] Select Set-up1 Changes active set-up to Set-up 1.

[3] Select Set-up2 Changes active set-up to Set-up 2.

[10] SelectPresetRef0 Selects preset reference 0

[11] SelectPresetRef1 Selects preset reference 1

[12] SelectPresetRef2 Selects preset reference 2

[13] SelectPresetRef3 Selects preset reference 3

[14] SelectPresetRef4 Selects preset reference 4

[15] SelectPresetRef5 Selects preset reference 5

[16] SelectPresetRef6 Selects preset reference 6

[17] SelectPresetRef7 Selects preset reference 7

[18] SelectRamp1 Selects ramp 1

[19] SelectRamp2 Selects ramp 2

[22] Run Issues start command to frequency converter.

[23] RunReverse Issues start reverse command to frequency converter.

Disabled Function is disabled.

[24] Stop Issues stop command to frequency converter.

[25] Qstop Issues quick stop command to frequency converter.

[26] DCstop Issues DC stop command to frequency converter.

[27] Coast Frequency converter coasts immediately. All stop commands in-

cluding coast command stop the SLC.

[28] Freeze Output Freezes output frequency.

[29] StartTimer0 Starts timer 0.

[30] StartTimer1 Starts timer 1

[31] StartTimer2 Starts timer 2

[32] SetDO42Low Digital output 42 is low.

[33] SetRelayLow Relay is low.

[38] SetDO42High Digital output 42 is high.

[39] SetRelayHigh Relay is high.

[60] ResetCounterA Resets counter A to 0.

[61] ResetCounterB Resets counter B to 0.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

4.11. Parameter Group 14: Special Functions

4.11.1. 14-** Special Functions

Parameter group for configuring special frequency converter functions.

4.11.2. Inverter Switching, 14-0*

Parameters for configuring the inverter switching.

14-01 Switching Frequency

Option: Function:

Select the switching frequency in order to minimize e.g. acoustic noise and power loss or maximizing efficiency.

[0] 2 KHz

[1]

[2] 8 KHz

[3] 12 KHz

[4] 16 KHz

4 KHz

14-03 Overmodulation

Option: Function:

This feature allows more accurate speed control near and over nominal speed (50/60 Hz). Another advantage with overmodulation is the ability of staying at a constant speed even though mains is dropping.

[0] Off Disables the overmodulation function to avoid torque ripple on

the motor shaft.

On Connects the overmodulation function to obtain an output volt-

[1]

age up to 15% greater than mains voltage.

4.11.3. 14-1* Mains Monitoring

This parameter group supplies functions for handling imbalance on mains.

14-12 Functions at Mains Imbalance

Option: Function:

Operation under severe mains imbalance conditions reduces drive lift time.

Select function to take place when severe mains imbalance is detected.

Trip Frequency converter trips.

[0]

[1] Warning Frequency converter issues a warning.

[2] Disabled No action taken.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

4.11.4. Trip Reset, 14-2*

Parameters for configuring auto reset handling, special trip handling and control card self test or initialisation.

14-20 Reset Mode

Option: Function:

Select reset function after tripping. Once reset, frequency converter can be restarted.

[0]

[1] AutoReset 1 Performs one automatic reset after tripping.

[2] AutoReset 2 Performs two automatic resets after tripping.

[3] AutoReset 3 Performs three automatic resets after tripping.

[4] AutoReset 4 Performs four automatic resets after tripping.

[5] AutoReset 5 Performs five automatic resets after tripping.

[6] AutoReset 6 Performs six automatic resets after tripping.

[7] AutoReset 7 Performs seven automatic resets after tripping.

[8] AutoReset 8 Performs eight automatic resets after tripping.

[9] AutoReset 9 Performs nine automatic resets after tripping.

[10] AutoReset 10 Performs ten automatic resets after tripping.

[11] AutoReset 15 Performs fifteen automatic resets after tripping.

[12] AutoReset 20 Performs twenty automatic resets after tripping.

[13] Infinite auto reset Performs an infinite number of automatic resets after tripping.

Manual Reset Perform reset via [reset]-button or digital inputs.

Motor may start without warning.

14-21 Automatic Restart Time

Range: Function:

10 s

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[0 - 600 s] Enter time interval from trip to start of automatic reset function.

This parameter is active when par. 14-20,

Automatic Reset

[0] - [13].

Reset Mode

, is set to

VLT Micro Drive FC 51 4. Parameter Descriptions

14-22 Operation Mode

Option: Function:

Use this parameter for specifying normal operation or to initialize all parameters, except par. 15-03, 15-04 and 15-05.

Normal Operation Frequency converter runs normal operation.

[0]

[2] Initialization Resets all parameters to default settings, except for 15-03,

15-04 and 15-05. Frequency converter resets during next power-up.

Par. 14-22 also reverts to default setting

Normal Operation

[0].

4.11.5. 14-4* Energy Optimizing

These parameters are for adjusting the energy optimization level in both Variable Torque (VT) and Automatic Energy Optimization (AEO) modes.

14-41 AEO Minimum Magnetization

Range: Function:

66%

[40 - 75%] Enter the minimum allowable magnetization for AEO. Selecting

a low value reduces energy loss in the motor, but may also reduce resistance to sudden load changes.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

4.12. Parameter Group 15: Drive Information

4.12.1. 15-** Drive Information

Parameter group containing information on operating data, hardware configuration, software version, etc.

4.12.2. 15-0* Operating Data

Parameter group containing operating data e.g. Operating Hours, kWh counters, Power Ups, etc.

4.12.3. 15-00 Operating Time

15-00 Operating Time

Range: Function:

0 days

15-01 Running Hours

Range: Function:

15-02 kWh Counter

Range: Function:

0 [0 - 65535] View power consumption in kWh as a mean value over one hour.

[0 - 65535 days] View running hours of frequency converter.

The value is saved at power off and cannot be reset.

[0 - 2147483647] View running hours of motor.

The value is saved at power off and can be reset in par. 15-07,

Reset Running Hours Counter

Reset counter in par. 15-06,

Reset kWh Counter

15-03 Power Ups

Range: Function:

0 [0 - 2147483647] View number of times frequency converter has been powered

up.

Counter cannot be reset.

15-04 Over Temps

Range: Function:

0 [0 - 65535] View number of times frequency converter has tripped due to

over temperature.

Counter cannot be reset.

15-05 Over Volts

Range: Function:

[0 - 65535] View number of times frequency converter has tripped due to

over voltage.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

Counter cannot be reset.

15-06 Reset kWh Counter

Option: Function:

This parameter cannot be selected via serial port RS 485.

[0]

[1] Reset Counter Counter is reset.

15-07 Reset Running Hours Counter

Option: Function:

[0]

[1] Reset Counter Counter is reset.

Do Not Reset Counter is not reset.

This parameter cannot be selected via serial port RS 485.

Do Not Reset Counter is not reset.

4.12.4. 15-3* Fault Log

This parameter group contains a fault log showing reasons for the ten latest trips.

15-30 Fault Log: Error Code

Range: Function:

0 [0 - 255] View error code and look it up in VLT Micro Design Guide.

4.12.5. Drive Identification, 15-4*

Parameters containing read only information about the hardware and software configuration of the frequency converter.

15-40 FC Type

Option: Function:

View FC type.

15-41 Power Section

Option: Function:

View power section of frequency converter.

15-42 Voltage

Option: Function:

View voltage of frequency converter.

15-43 Software Version

Option: Function:

View software version of frequency converter.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

15-46 Frequency Converter Ordering No

Option: Function:

View ordering number for re-ordering frequency converter in its original configuration.

15-48 LCP ID No

Option: Function:

View LCP ID number.

15-51 Frequency Converter Serial Number

Option: Function:

View frequency converter serial number.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

4.13. Parameter Group 16: Data Readouts

4.13.1. 16-** Data Readouts

Parameter group for data read-outs, e.g. actual references, voltages, control, alarm, warning and status words.

4.13.2. 16-0* General Status

Parameters for reading the general status, e.g. the calculated reference, the active control word, status.

16-00 Control Word

Range: Function:

16-01 Reference [Unit]

Range: Function:

0.000

16-02 Reference %

Range: Function:

0.0

16-03 Status Word

Range: Function:

[0 - 65535] View latest valid control word sent to frequency converter via

serial communication port.

[-4999.000 -

4999.000]

[-200.0 - 200.0%] View total remote reference in percent. Total reference is sum

[0 - 65535] View status word sent to frequency converter via serial com-

View total remote reference. Total reference is sum of pulse, analog, preset, LCP potmeter, local bus and freeze reference.

of pulse, analog, preset, LCP potmeter, local bus and freeze reference.

munication port.

16-05 Main Actual Value %

Range: Function:

0.00

[-100.00 - 100.00%] View two-byte word sent with status word to bus Master re-

4.13.3. 16-1* Motor Status

Parameters for reading the motor status values.

16-10 Power [kW]

Range: Function:

0 kW

[0 - 99 kW] View output power in kW.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

porting main actual value.

4. Parameter Descriptions VLT Micro Drive FC 51

16-11 Power [hp]

Range: Function:

0 hp [0 - 99 hp ] View output power in hp.

16-12 Motor Voltage

Range: Function:

[0.0 - 999.9 V] View motor phase voltage.

0.0

16-13 Frequency

Range: Function:

0.0 Hz

16-14 Motor Current

Range: Function:

0.00 A

16-15 Frequency [%]

Range: Function:

0.00

16-18 Motor Thermal

Range: Function:

[0.0 - 400.0 Hz] View output frequency in Hz.

[0.00 - 1856.00 A] View motor phase current.

[-100.00 - 100.00%] View a two-byte word reporting actual motor frequency as a

[0 - 100%] View calculated thermal motor load as percentage of estimated

4.13.4. 16-3* Drive Status

percentage of par. X-XX

thermal motor load.

Parameters for reporting the status of the frequency converter.

16-30 DC Link Voltage

Range: Function:

0 V

16-34 Heat Sink Temp.

Range: Function:

16-35 Inverter Thermal

Range: Function:

[0 - 10000 V] View DC-link voltage.

[0 - 255] View heat sink temperature of frequency converter.

[0 - 100%] View calculated thermal load on frequency converter in relation

to estimated thermal load on frequency converter.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

16-36 Inv. Nom. Current

Range: Function:

0.00 A

16-37 Inv. Max. Current

Range: Function:

0.00 A

[0.01 - 10000.00 A] View continuous nominal inverter current.

[0.1 - 10000.00 A] View intermittent maximum inverter current (150%).

16-38 SL Controller State

Range: Function:

[0 - 255] View number of active SLC state.

4.13.5. 16-5* Ref. & Feedb.

Parameters for reporting the reference and feedback input.

16-50 External Reference

Range: Function:

0.0%

16-51 Pulse Reference

Range: Function:

0.0 %

16-52 Feedback

Range: Function:

0.000

[-200.0 - 200.0%] View sum of all external references in percent.

[-200.0 - 200.0%] View actual pulse input converted to a reference in percent.

[-4999.000 -

4999.000]

View analog or pulse feedback in Hz.

4.13.6. 16-6* Inputs and Outputs

Parameters for reporting the digital and analog IO ports.

16-60 Digital Input 18, 19, 27, 33

Range: Function:

16-61 Digital Input 29

Range: Function:

16-62 Analog Input 53 (volt)

Range: Function:

0.00

[0 - 1111] View signal states from active digital inputs.

[0 - 1] View signal state on digital input 29.

[0.00 - 10.00 V] View input voltage on analog input terminal.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

4. Parameter Descriptions VLT Micro Drive FC 51

16-63 Analog Input 53 (current)

Range: Function:

0.00

16-64 Analog Input 60

Range: Function:

0.00

16-65 Analog Output 42 [mA]

Range: Function:

0.00 mA

16-68 Pulse Input

Range: Function:

20 Hz

[0.00 - 20.00 mA] View input current on analog input terminal.

[0.00 - 20.00 mA] View actual value at input 60 either as reference or protection

value.

[0.00 - 20.00 mA] View output current on analog output 42.

[20 - 5000 Hz] View input frequency on pulse input terminal.

16-71 Relay Output [bin]

Range: Function:

16-72 Counter A

Range: Function:

16-73 Counter B

Range: Function:

[0 - 1] View relay setting.

[-2147483648 2147483647]

4.13.7. 16-8* FC Port

Parameter for viewing references from FC Port.

16-86 FC Port REF 1

Range: Function:

[0x8000 - 0x7FFF] View currently received reference from FC Port.

View present value of Counter A.

View present value of Counter B.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 4. Parameter Descriptions

4.13.8. 16-9* Diagnosis Read-Out

Parameters displaying alarm, warning and extended status words.

16-90 Alarm Word

Range: Function:

16-92 Warning Word

Range: Function:

16-94 Ext. Status Word

Range: Function:

[0 - 0x7FFFFFFFUL] Via alarm word sent via serial communication port in hex code.

[0 - 0x7FFFFFFFUL] View warning word sent via serial communication port in hex

code.

[0 - 0xFFFFFFFUL] View extended warning word sent via serial communication port

in hex code.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

5. Parameter Lists VLT Micro Drive FC 51

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 5. Parameter Lists

5. Parameter Lists

[1] Resistor brake

[2] AC brake

2-11 Brake Resistor (ohm)

5 - 5000 * 5

1-61 High Speed Load Compensation

0 - 199 % * 100 %

1-62 Slip Compensation

Parameter Overwiev

-400 - 399 % * 100 %

1-0* General Settings

1-00 Configuration Mode

*[0] Speed open loop

[3] Process

2-16 AC Brake, Max current

0 - 150 % * 100 %

2-17 Over-voltage Control

*[0] Disabled

[1] Enabled (not at stop)

1-63 Slip Compensation Time Constant

0.05 - 5.00 s * 0.10 s

1-7* Start Adjustments

1-71 Start Delay

0.0 - 10.0 s * 0.0 s

1-01 Motor Control Principl e

[0] U/f

*[1] VVC+

1-03 Torque Characteristics

*[0] Constant torque

[2] Enabled

1-72 Start Function

[2] Automatic Energy Optim.

2-2* Mechanical Brake

2-20 Release Brake Current

[0] DC hold / delay time

[1] DC brake / delay time

1-05 Local Mode Configuration

[0] Speed Open Loop

0.00 - 100.0 A * 0.00 A

2-22 Activate Brake Speed [Hz]

0.0 - 400.0 Hz * 0.0 Hz

*[2] Coast / delay time

1-73 Flying Start

*[0] Disabled

*[2] As config in param. 1-00

1-2* Motor Data

1-20 Motor Power [kW] [HP]

3-** Reference / Ramps

3-00 Reference Range

3-0* Reference Limits

[1] Enabled

1-8* Stop Adjustments

1-80 Function at Stop

0.09 kW / 0.12 HP .... 11 kW / 15 HP

1-22 Motor Voltage

50 - 999 V * 230 - 400 V

*[0] Min - Max

[1] -Max - +Max

*[0] Coast

[1] DC hold

1-23 Motor Frequency

20 - 400 Hz * 50 Hz

3-02 Minimum Reference

-4999 - 4999 * 0.000

3-03 Maximum Reference

-4999 - 4999 * 50.00

3-1* References

3-10 Preset Reference

-100.0 - 100.0 % * 0.00 %

3-11 Jog Speed [Hz]

0.0 - 400.0 Hz * 5.0 Hz

3-12 Catch up/slow Down Value

0.00 - 100.0 % * 0.00 %

3-14 Preset Relative Reference

-100.0 - 100.0 % * 0.00 %

3-15 Reference Resource 1

[0] No function

*[1] Analog Input 53

[2] Analog input 60

[8] Pulse input 33

[11] Local bus ref

[21] Lcp Potentiometer

3-16 Reference Resource 2

[0] No function

[1] Analog Input 53

*[2] Analog input 60

[8] Pulse input 33

[11] Local bus ref

[21] Lcp Potentiometer

1-82 Min Speed for Funct. at Stop [Hz]

0.0 - 20.0 Hz * 0.0 Hz

1-9* Motor Temperature

1-90 Motor Thermal Protection

*[0] No protection

[1] Termistor warning

[2] Thermistor trip

[3] Etr warning

[4] Etr trip

1-93 Thermistor Resource

*[0] None

[1] Analog input 53

[6] Digital input 29

2-** Brakes

2-00 DC Hold Current

0 - 150 % * 50 %

2-01 DC Brake Current

0 - 150 % * 50 %

2-02 DC Braking Time

0.0 - 60.0 s * 10.0 s

2-04 DC Brake Cut In Speed

0.0 - 400.0 Hz * 0.0 Hz

2-1* Brake Energy Funct.

2-10 Brake Function

2-0* DC-Brake

1-24 Motor Current

0.01 - 26.00 A * Motortype dep.

1-25 Motor Nominal Speed

100 - 9999 rpm * Motortype dep.

1-29 Automatic Motor Tuning (AMT)

*[0] Off

[2] Enable AMT

1-3* Adv. Motor Data

1-30 Stator Resistance (Rs)

[Ohm] * Dep. on motor data

1-33 Stator Leakage Reactance (X1)

[Ohm] * Dep. on motor data

1-35 Main Reactance (Xh)

[Ohm] * Dep. on motor data

1-5* Load Indep. Setting

1-50 Motor Magnetisation at 0 Speed

0 - 300 % * 100 %

1-52 Min Speed Norm. Magnet. [Hz]

0.0 - 10.0 Hz * 0.0 Hz

1-55 U/f Characteristic - U

0 - 999.9 V

1-56 U/f Characteristic - F

*[0] Off

0 - 400 Hz

1-6* Load Depen. Setting

1-60 Low Speed Load Compensation

0 - 199 % * 100 %

0-** Operation/Display

0-03 Regional Settings

*[0] International

[1] US

0-04 Oper. State at Power-up (Hand)

[0] Resume

*[1] Forced stop, ref = old

[2] Forced stop, ref = 0

0-1* Set-up Handling

0-10 Active Set-up

*[1] Setup 1

[2] Setup 2

[9] Multi Setup

0-11 Edit Set-up

*[1] Setup 1

[2] Setup 2

[9] Active Setup

0-12 Link Setups

[0] Not Linked

*[20] Linked

0-4* LCP Keypad

0-40 [Hand on] Key on LCP

[0] Disabled

*[1] Enabled

0-41 [Off / Reset] Key on LCP

[0] Disable All

*[1] Enable All

[2] Enable Reset Only

0-42 [Auto on] Key on LCP

[0] Disabled

*[1] Enabled

0-5* Copy/Save

0-50 LCP Copy

*[0] No copy

[1] All to LCP

[2] All from LCP

[3] Size indep. from LCP

0-51 Set-up Copy

*[0] No copy

[1] Copy from setup 1

[2] Copy from setup 2

[9] Copy from Factory setup

0-6* Password

0-60 (Main) Menu Password

0 - 999 * 0

0-0* Basic Settings

MG.02.C2.02 - VLT® is a registered Danfoss trademark

1-** Load/Motor

5. Parameter Lists VLT Micro Drive FC 51

[70-73] Logic rule 0-3

[81] SL digital output B

5-5* Pulse Input

5-55 Terminal 33 Low Frequency

20 - 4999 Hz * 20 Hz

5-56 Terminal 33 High Frequency

21 - 5000 Hz * 5000 Hz

5-57 Term. 33 Low Ref./Feedb. Value

-4999 - 4999 * 0.000

5-58 Term. 33 High Ref./Feedb. Value

-4999 - 4999 * 50.000

6-** Analog In/Out

6-00 Live Zero Timeout Time

1 - 99 s * 10 s

6-01 Live Zero TimeoutFunction

*[0] Off

[1] Freeze output

[2] Stop

[3] Jogging

[4] Max speed

[5] Stop and trip

6-1* Analog Input 1

6-10 Terminal 53 Low Voltage

0.00 - 9.99 V * 0.07 V

6-11 Terminal 53 High Voltage

0.01 - 10.00 V * 10.00 V

6-12 Terminal 53 Low Current

0.00 - 19.99 mA * 0.14 mA

6-13 Terminal 53 High Current

0.01 - 20.00 mA * 20.00 mA

6-14 Term. 53 Low Ref./Feedb. Value

-4999 - 4999 * 0.000

6-15 Term. 53 High Ref./Feedb. Value

-4999 - 4999 * 50.000

6-16 Terminal 53 Filter Time Constant

0.01 - 10.00 s * 0.01 s

6-19 Terminal 53 mode

*[0] Voltage mode

[1] Current mode

6-2* Analog Input 2

6-22 Terminal 60 Low Current

0.00 - 19.99 mA * 0.14 mA

6-23 Terminal 60 High Current

6-0* Analog I/O Mode

0.01 - 20.00 mA * 20.00 mA

5-11 Terminal 19 Digital Input

See par. 5-10. * [10] Reversing

5-12 Terminal 27 Digital Input

See par. 5-10. * [1] Reset

5-13 Terminal 29 Digital Input

See par. 5-10. * [14] Jog

4-17 Torque Limit Generator Mode

0 - 400 % * 100 %

4-5* Adj. Warnings

4-50 Warning Current Low

0.00 - 26.00 A * 0.00 A

4-51 Warning Current High

5-15 Terminal 33 Digital Input

0.00 - 26.00 A * 26.00 A

See par. 5-10. * [16] Preset ref bit 0

4-58 Missing Motor Phase Function

[26] Precise Stop Inverse

[27] Start, Precise Stop

[32] Pulse Input

[0] Off

*[1] On

4-6* Speed Bypass

5-4* Relays

4-61 Bypass Speed From [Hz]

5-40 Function Relay

0.0 - 400.0 Hz * 0.0 Hz

*[0] No opreation

4-63 Bypass Speed To [Hz]

[1] Control ready

0.0 - 400.0 Hz * 0.0 Hz

[2] Drive ready

5-1* Digital Inputs

[3] Drive ready, Remote

5-10 Terminal 18 Digital Input

[4] Enable / No warning

[5] Drive running

[0] No function

[1] Reset

[6] Running / No warning

[7] Run in range / No warning

[8] Run on ref / No warning

[9] Alarm

[2] Coast inverse

[3] Coast and reset inv.

[4] Quick stop inverse

[5] DC-brake inv.

[10] Alarm or warning

[12] Out of current range

[6] Stop inv

*[8] Start

[13] Below current, low

[9] Latched start

[14] Above current, high

[21] Thermal warning

[10] Reversing

[11] Start reversing

[22] Ready, No thermal warning

[12] Enable start forward

[23] Remote ready, No thermal warning

[13] Enable start reverse

[24] Ready, Voltage ok

[14] Jog

[25] Reverse

[26] Bus ok

[28] Brake,NoWarn

[16-18] Preset ref bit 0-2

[19] Freeze reference

[20] Freeze output

[29] Brake ready/NoFault

[21] Speed up

[30] BrakeFault (IGBT)

[22] Speed down

[32] Mech.brake control

[36] Control word bit 11

[51] Local ref. active

[52] Remote ref. active

[53] No alarm

[54] Start cmd active

[55] Running reverse

[56] Drive in hand mode

[57] Drive in auto mode

[60-63] Comparator 0-3

[23] Setup select bit 0

[28] Catch up

[29] Slow down

[34] Ramp bit 0

[60] Counter A (up)

[61] Counter A (down)

[62] Reset counter A

[63] Counter B (up)

[64] Counter B (down)

[65] ResetCounter B

3-17 Reference Resource 3

[0] No function

[1] Analog Input 53

[2] Analog input 60

[8] Pulse input 33

*[11] Local bus ref

[21] Lcp Potentiometer

3-18 Relative Scaling Ref. Resource

*[0] No function

[1] Analog Input 53

[2] Analog input 60

[8] Pulse input 33

[11] Local bus ref

[21] Lcp Potentiometer

3-4* Ramp 1

3-40 Ramp 1 Type

*[0] Linear

[2] Sine2 ramp

3-41 Ramp 1 Ramp up Time

0.05 - 3600 s * 3.00 s

3-42 Ramp 1 Ramp Down Time

0.05 - 3600 s * 3.00 s

3-5* Ramp 2

3-50 Ramp 2 Type

*[0] Linear

[2] Sine2 ramp

3-51 Ramp 2 Ramp up Time

0.05 - 3600 s * 3.00 s

3-52 Ramp 2 Ramp down Time

0.05 - 3600 s * 3.00 s

3-8* Other Ramps

3-80 Jog Ramp Time

0.05 - 3600 s * 3.00 s

3-81 Quick Stop Ramp Time

0.05 - 3600 s * 3.00 s

4-** Limits / Warnings

4-10 Motor Speed Direction

[0] Clockwise

[1] CounterClockwise

*[2] Both

4-12 Motor Speed Low Limit [Hz]

0.0 - 400.0 Hz * 0.0 Hz

4-14 Motor Speed High Limit [Hz]

0.1 - 400.0 Hz * 65.0 Hz

4-16 Torque Limit Motor Mode

4-1* Motor Limits

MG.02.C2.02 - VLT® is a registered Danfoss trademark

0 - 400 % * 150 %

VLT Micro Drive FC 51 5. Parameter Lists

[8] BelowILow

[9] AboveIHigh

[16] ThermalWarning

[17] MainOutOfRange

[18] Reversing

[19] Warning

[20] Alarm_Trip

[21] Alarm_TripLock

[22-25] Comparator 0-3

[26-29] LogicRule0-3

[33] DigitalInput_18

[34] DigitalInput_19

[35] DigitalInput_27

[36] DigitalInput_29

[38] DigitalInput_33

*[39] StartCommand

[40] DriveStopped

13-02 Stop Event

See par. 13-01 * [40] DriveStopped

13-03 Reset SLC

*[0] Do not reset

[1] Reset SLC

13-1* Comparators

13-10 Comparator Operand

*[0] Disabled

[1] Reference

[2] Feedback

[3] MotorSpeed

[4] MotorCurrent

[6] MotorPower

[7] MotorVoltage

[8] DCLinkVoltage

[12] AnalogInput53

[13] AnalogInput60

[18] PulseInput33

[20] AlarmNumber

[30] CounterA

[31] CounterB

13-11 Comparator Operator

[0] Less Than

8-33 FC Port Parity

7-31 Process PI Anti Windup

*[0] Even Parity, 1 Stop Bit

[0] Disable

[1] Odd Parity, 1 Stop Bit

[2] No Parity, 1 Stop Bit

[3] No Parity, 2 Stop Bits

8-35 Minimum Response Delay

0.001-0.5 * 0.010 s

8-36 Max Response Delay

0.100 - 10.00 s * 5.000 s

8-5* Digital/Bus

8-50 Coasting Select

[0] DigitalInput

[1] Bus

[2] LogicAnd

*[3] LogicOr

8-51 Quick Stop Select

See par. 8-50 * [3] LogicOr

8-52 DC Brake Select

See par. 8-50 * [3] LogicOr

8-53 Start Select

See par. 8-50 * [3] LogicOr

8-54 Reversing Select

See par. 8-50 * [3] LogicOr

8-55 Set-up Select

See par. 8-50 * [3] LogicOr

8-56 Preset Reference Select

See par. 8-50 * [3] LogicOr

8-9* Bus Jog / Feedback

8-94 Bus feedback 1

0x8000 - 0x7FFF * 0

13-** Smart Logic

13-00 SL Controller Mode

*[0] Off

[1] On

13-01 Start Event

[0] False

[1] True

[2] Running

[3] InRange

[4] OnReference

13-0* SLC Settings

*[1] Enable

7-32 Process PI Start Speed

0.0 - 200.0 Hz * 0.0 Hz

7-33 Process PI Proportional Gain

0.00 - 10.00 * 0.01

7-34 Process PI Integral Time

0.10 - 9999 s * 9999 s

7-38 Process PI Feed Forward Factor

0 - 400 % * 0 %

7-39 On Reference Bandwidth

0 - 200 % * 5 %

8-** Comm. and Options

8-01 Control Site

*[0] Digital and ControlWord

[1] Digital only

[2] ControlWord only

8-02 Control Word Source

[0] None

*[1] FC RS485

8-03 Control Word Timeout Time

0.1 - 6500 s * 1.0 s

8-04 Control Word Timeout Function

*[0] Off

[1] Freeze Output

[2] Stop

[3] Jogging

[4] Max. Speed

[5] Stop and trip

8-06 Reset Control Word Timeout

*[0] No Function

[1] Do reset

8-3* FC Port Settings

8-30 Protocol

*[0] FC

8-0* General Settings

[2] Modbus

[7] OutOfCurrentRange

8-31 Address

1 - 247 * 1

8-32 FC Port Baud Rate

[0] 2400 Baud

[1] 4800 Baud

*[2] 9600 Baud

6-24 Term. 60 Low Ref./Feedb. Value

-4999 - 4999 * 0.000

6-25 Term. 60 High Ref./Feedb. Value

-4999 - 4999 * 50.00

6-26 Terminal 60 Filter Time Constant

0.01 - 10.00 s * 0.01 s

6-8* LCP potmeter

6-81 LCP potm. Low Reference

-4999 - 4999 * 0.000

6-82 LCP potm. High Reference

-4999 - 4999 * 50.00

6-9* Analog Output xx

6-90 Terminal 42 Mode

*[0] 0-20 mA

[1] 4-20 mA

[2] Digital Output

6-91 Terminal 42 Analog Output

*[0] No operation

[10] Output Frequency

[11] Reference

[12] Feedback

[13] Motor Current

[16] Power

[20] BusControl

6-92 Terminal 42 Digital Output

See par. 5-40

* [0] No Operation

[80] SL Digital Output A

6-93 Terminal 42 Output Min Scale

0.00 - 200.0 % * 0.00 %

6-94 Terminal 42 Output Max Scale

0.00 - 200.0 % * 100.0 %

7-** Controllers

7-20 Process CL Feedback 1 Resource

*[0] NoFunction

[1] Analog Input 53

[2] Analog input 60

[8] PulseInput33

[11] LocalBusRef

7-3* Process PI

Ctrl. 7-30 Process PI Normal/ Inverse Ctrl

*[0] Normal

7-2* Process Ctrl. Feedb

MG.02.C2.02 - VLT® is a registered Danfoss trademark

[1] Inverse

5. Parameter Lists VLT Micro Drive FC 51

16-3* Drive Status

16-30 DC Link Voltage

16-36 Inv. Nom. Current

16-37 Inv. Max. Current

16-38 SL Controller State

16-5* Ref. / Feedb.

16-50 External Reference

16-51 Pulse Reference

16-52 Feedback [Unit]

16-6* Inputs / Outputs

16-60 Digital Input 18,19,27,33

0 - 1111

16-61 Digital Input 29

0 - 1

16-62 Analog Input 53 (volt)

16-63 Analog Input 53 (current)

16-64 Analog Input 60

16-65 Analog Output 42 [mA]

16-68 Pulse Input [Hz]

16-71 Relay Output [bin]

16-72 Counter A

16-73 Counter B

16-8* Fieldbus / FC Port

16-86 FC Port REF 1

0x8000 - 0x7FFFF

16-9* Diagnosis Readouts

16-90 Alarm Word

0 - 0XFFFFFFFF

16-92 Warning Word

0 - 0XFFFFFFFF

16-94 Ext. Status Word

0 - 0XFFFFFFFF

15-04 Over Temps

[31] StartTimer2

15-05 Over Volts

[32] Set Digital Output A Low

15-06 Reset kWh Counter

*[0] Do not reset

[33] Set Digital Output B Low

[38] Set Digital Output A High

[1] Reset counter

15-07 Reset Running Hours Counter

*[0] Do not reset

[1] Reset counter

15-3* Fault Log

15-30 Fault Log: Error Code

15-4* Drive Identification

15-40 FC Type

15-41 Power Section

15-42 Voltage

15-43 Software Version

15-46 Frequency Converter Order. No

15-48 LCP Id No

15-51 Frequency Converter Serial No

16-** Data Readouts

16-00 Control Word

0 - 0XFFFF

16-01 Reference [Unit]

-4999 - 4999

16-02 Reference %

-200.0 - 200.0 %

16-03 Status Word

0 - 0XFFFF

16-05 Main Actual Value [%]

-200.0 - 200.0 %

16-1* Motor Status

16-10 Power [kW]

16-11 Power [hp]

16-12 Motor Voltage [V]

16-13 Frequency [Hz]

16-14 Motor Current [A]

16-15 Frequency [%]

16-0* General Status

[39] Set Digital Output B High

[60] ResetCounterA

[61] ResetCounterB

14-** Special Functions

14-01 Switching Frequency

[0] 2 kHz

*[1] 4 kHz

[2] 8 kHz

[4] 16 kHz

14-03 Overmodulation

[0] Off

*[1] On

14-1* Mains monitoring

14-12 Function at mains imbalance

*[0] Trip

[1] Warning

[2] Disabled

14-2* Trip Reset

14-20 Reset Mode

*[0] Manual reset

[1-9] AutoReset 1-9

[10] AutoReset 10

[11] AutoReset 15

[12] AutoReset 20

[13] Infinite auto reset

14-21 Automatic Restart Time

0 - 600 s * 10 s

14-22 Operation Mode

14-0* Inverter Switching

*[0] Normal Operation

16-18 Motor Thermal [%]

[2] Initialisation

14-26 Action At Inverter Fault

*[0] Trip

[1] Warning

14-4* Energy Optimising

14-41 AEO Minimum Magnetisation

40 - 75 % * 66 %

15-** Drive Information

15-00 Operating Days

15-01 Running Hours

15-02 kWh Counter

15-0* Operating Data

15-03 Power Ups

*[1] Approximately equals

[2] Greater Than

13-12 Comparator Value

-9999 - 9999 * 0.0

13-2* Timers

13-20 SL Controller Timer

0.0 - 3600 s * 0.0 s

13-4* Logic Rules

13-40 Logic Rule Boolean 1

See par. 13-01 * [0] False

[30] - [32] SL Time-out 0-2

13-41 Logic Rule Operator 1

*[0] Disabled

[1] And

[2] Or

[3] And not

[4] Or not

[5] Not and

[6] Not or

[7] Not and not

[8] Not or not

13-42 Logic Rule Boolean 2

See par. 13-40

13-43 Logic Rule Operator 2

See par. 13-41 * [0] Disabled

13-44 Logic Rule Boolean 3

See par. 13-40

13-5* States

13-51 SL Controller Event

See par. 13-40

13-52 SL Controller Action

*[0] Disabled

[1] NoAction

[2] SelectSetup1

[3] SelectSetup2

[10-17] SelectPresetRef0-7

[18] SelectRamp1

[19] SelectRamp2

[22] Run

[23] RunReverse

[24] Stop

[25] Qstop

[26] DCstop

[27] Coast

[28] FreezeOutput

[29] StartTimer0

[30] StartTimer1

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 6. Troubleshooting

6. Troubleshooting

X X X Missing phase on supply side, or too high voltage imbalance. Check supply voltage.

X X Intermediate circuit voltage exceeds limit.

X X Intermediate circuit voltage drops below “voltage warning low” limit.

Mains phase loss

DC under voltage

DC over voltage

No. Description Warning Alarm Trip Lock Cause of Problem

2 Live zero error X X Signal on terminal 53 or 60 is less than 50% of value set in par. 6-10, 6-12 and 6-22.

9 Inverter overloaded X X More than 100% load for too long.

10 Motor ETR over temperature X X Motor is too hot due to more than 100% load for too long.

12 Torque limit X Torque exceeds value set in either par. 4-16 or 4-17.

11 Motor thermistor over temperature X X Thermistor or thermistor connection is disconnected.

13 Over Current X X X Inverter peak current limit is exceeded.

14 Earth fault X X Discharge from output phases to ground.

X Wrong setting for motor voltage, motor current and motor voltage.

X Motor current is too low. Check settings.

nom

and I

nom

Drive Initialised to Default Value X All parameter settings are initialized to default settings.

These faults may be caused by mains distortions. Installing Danfoss Line Filter

17 Control word timeout X X No communication to frequency converter.

27 Brake chopper short-circuited X X Brake transistor is short-circuited, thus brake function is disconnected.

29 Power board over temp X X X Heat-sink cut-out temperature has been reached.

31 Motor phase V missing X X Motor phase V is missing. Check the phase.

38 Internal fault X X Contact local Danfoss supplier.

16 Short Circuit X X Short-circuit in motor or on motor terminals.

25 Brake resistor short-circuited X X Brake resistor is short-circuited, thus brake function is disconnected.

28 Brake check X Brake resistor is not connected/working

30 Motor phase U missing X X Motor phase U is missing. Check the phase.

51 AMT check U

32 Motor phase W missing X X Motor phase W is missing. Check the phase.

47 Control Voltage Fault X X X 24 V DC may be overloaded.

59 Current limit X VLT overload.

52 AMT low I

63 Mechanical Brake Low X Actual motor current has not exceeded “release brake” current within “start delay” time window.

Table 6.1: Code list

may rectify this problem.

MG.02.C2.02 - VLT® is a registered Danfoss trademark

Index VLT Micro Drive FC 51

Index

16-1* Motor Status 71

Abbreviations And Standards 8

Display 9

Disposal Instruction 4

Drive Identification, 15-4* 69

Earth Leakage Current 3

Electronic Waste 4

General Warning 8

Indicator Lights 11

Inverter Switching, 14-0* 65

It Mains 4

Lcp 9, 10

Leakage Current 4

Main Menu 10

Motor Direction 10

Navigation Keys 11

Not Changeable During Operation 15

Operation Keys 11

Parameter Number 10

Quick Menu 10

Rated Magnetizing Current 21

Residual Current Device 4

Set-up Number 9

Set-up Software 9

Special Functions 65

Status Menu 10

MG.02.C2.02 - VLT® is a registered Danfoss trademark

VLT Micro Drive FC 51 Index

Trip Reset, 14-2* 66

Type Code String 7

Unit 10

Value 10

MG.02.C2.02 - VLT® is a registered Danfoss trademark

Danfoss VLT FC 51 Series Programming Manual

Specifications and Main Features

Frequently Asked Questions

User Manual