Danfoss VLT AutomationDrive FC 301 Programming Manual page 91

VLT AutomationDrive FC 301/302
Programming Guide
Motor Voltage
Par 1-55 [x]
1-55[5]
1-55[4]
1-55[3]
1-55[2]
1-55[1]
1-55[0]
1-56 1-56 1-56
[0] [1] [2]
Illustration 36: U/f Characteristic
Parameter 1-57 Torque Estimation Time Constant
Table 108: Parameter 1-57 Torque Estimation Time Constant
1-57 Torque Estimation Time Constant
Default value: 150 ms
Conversion index: -3
This parameter is only valid with software version 48.XX.
Enter the time constant for the torque estimation below model change point in flux sensorless control principle.
Parameter 1-58 Flying Start Test Pulses Current
Table 109: Parameter 1-58 Flying Start Test Pulses Current
1-58 Flying Start Test Pulses Current
Default value: Size related
Conversion index: 0
This parameter is only available in VVC+.
This parameter has effect on PM motors only.
Sets the current level for the flying start test pulses that are used to detect the motor direction. 100% means I
be high enough to avoid noise influence, but low enough to avoid affecting the accuracy (current must be able to drop to 0 before
the next pulse). Reduce the value to reduce the generated torque. Default is 30% for asynchronous motors, but may vary for PM
motors. For adjusting PM motors, the value tunes for back EMF and d-axis inductance of the motor.
Danfoss A/S © 2022.12
1-56
1-56 1-56
[5]
[3] [4]
Output Frequency
Par 1-56 [x]
Parameter type: Range, 50 - 1000 ms
Data type: Uint16
N O T I C E
Parameter type: Range, 0 - 200%
Data type: Uint16
N O T I C E
N O T I C E
Parameter Descriptions
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: False
. Adjust the value to
m,n
AU275636650261en-000101 / 130R0334 | 91