Danfoss VLT HVAC Drive FC 131 Programming Manual page 54

VLT® HVAC Drive FC 131
Programming Guide
Table 67: Range:
Min: 20%
4.3.6 1-5* Load Indep. Setting
Parameters for load-independent motor settings.
1-50 Motor Magnetisation at Zero Speed
Default value: 100 %
Conversion index: -
Use this parameter along with parameter 1-52 Min Speed Normal Magnetising [Hz] to obtain a different thermal load on the motor
when running at low speed. Enter a value that is a percentage of the rated magnetizing current. If the setting is too low, the torque
on the motor shaft may be reduced.
Magn. current
90%
Par. 1-50
Par. 1-52
Illustration 7: Motor Magnetization
Table 68: Range:
Min: 0%
1-52 Min Speed Normal Magnetising [Hz]
Default value: 1 Hz
Conversion index: -1
Set the required frequency for normal magnetizing current. Use this parameter along with parameter 1-50 Motor Magnetisation at
Zero Speed.
Table 69: Range:
Min: 0.1 Hz
1-55 U/f Characteristic - U
Default value: Configuration dependent
Conversion index: -
Enter voltage at each frequency point to form a U/f characteristic matching the motor. Frequency points are defined in parameter
1-56 U/f Characteristic - F.
Table 70: Range:
Min: 0 V Max: 999 V
1-56 U/f Characteristic - F
Default value: Configuration dependent
Conversion index: -
Enter frequency points to form a U/f characteristic matching the motor. Voltage at each point is defined in parameter 1-55 U/f Char-
acteristic - U.
54 | Danfoss A/S © 2022.05
Max: 200%
Parameter type: Range
Data type: u_int16
Hz
Max: 300%
Parameter type: Range
Data type: u_int16
Max: 10.0 Hz
Parameter type: Range
Data type: u_int16
Default value: Configuration dependent
Parameter type: Range
Data type: u_int16
Default value: 100%
2-setup: All setups
Change during operation: True
Default value: 100%
2-setup: All setups
Change during operation: True
Default value: 1 Hz
2-setup: All setups
Change during operation: True
2-setup: All setups
Change during operation: True
AU370727746889en-000101 / 130R0994
Parameters