Danfoss VLT AutomationDrive FC 302 Programming Guide

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N O T I C E
Parameter 1-51 Min Speed Normal Magnetising [RPM] has no effect when parameter 1-10 Motor Construction = [1] PM, nonsalient
SPM.
Set the required speed for normal magnetizing current. If the speed is set lower than the motor slip speed, parameter 1-50 Motor
Magnetisation at Zero Speed and parameter 1-51 Min Speed Normal Magnetising [RPM] are of no significance. Use this parameter
along with parameter 1-50 Motor Magnetisation at Zero Speed.
Parameter 1-52 Min Speed Normal Magnetising [Hz]
Table 103: Parameter 1-52 Min Speed Normal Magnetising [Hz]
1-52 Min Speed Normal Magnetising [Hz]
Default value: Size related
Parameter type: Range, 0 - 250.0 Hz
Setup: All setups
Conversion index: -1
Data type: Uint16
Change during operation: True
N O T I C E
Parameter 1-52 Min Speed Normal Magnetising [Hz] has no effect when parameter 1-10 Motor Construction = [1] PM, non-salient
SPM.
Set the required frequency for normal magnetizing current. If the frequency is set lower than the motor slip frequency, parameter
1-50 Motor Magnetisation at Zero Speed is inactive. Use this parameter along with parameter 1-50 Motor Magnetisation at Zero Speed.
Parameter 1-53 Model Shift Frequency
Table 104: Parameter 1-53 Model Shift Frequency
1-53 Model Shift Frequency
Default value: Size related
Parameter type: Range, 4 - 18.0 Hz
Setup: All setups
Conversion index: -1
Data type: Uint16
Change during operation: False
N O T I C E
This parameter cannot be adjusted while the motor is running.
Flux model shift: Enter the frequency value for shifting between 2 models for determining motor speed. Select the value based on
settings in parameter 1-00 Configuration Mode and parameter 1-01 Motor Control Principle. There are the following options:
Shift between flux model 1 and flux model 2.
Shift between variable current mode and flux model 2.
No shift between models at low speed if parameter 40-50 Flux Sensorless Model Shift is set to option [0] Off.
Flux model 1 - flux model 2: This model is used when parameter 1-00 Configuration Mode is set to [1] Speed closed loop or [2] Torque,
and parameter 1-01 Motor Control Principle is set to [3] Flux w/motor feedback. With this parameter, it is possible to make an adjust-
ment of the shifting point where the drive changes between flux model 1 and flux model 2, which is useful in some sensitive speed
and torque control applications.
P 1-53
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f
out
f
N,M
x 0.125
f
N,M
x 0.1
Flux model 2
Flux model 1
Illustration 34: Example of Parameter 1-00 Configuration Mode = [1] Speed closed loop or [2] Torque and parameter 1-01 Motor Control Princi-
ple = [3] Flux w/motor feedback
Variable current - flux model - sensorless: This model is used when parameter 1-00 Configuration Mode is set to [0] Speed open loop
and parameter 1-01 Motor Control Principle is set to [2] Flux sensorless. In speed open loop in flux mode, the speed is determined from
AU275636650261en-000101 / 130R0334 | 89Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss VLT AutomationDrive FC 302 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 302
Category	DC Drives
Language	English