Torque Pi Control - Danfoss VLT AutomationDrive EZ FC 321 Programming Manual

VLT® AutomationDrive EZ FC 321
Programming Guide
Par 7-07=1.00
Illustration 66: Speed PID Feedback Gear Ratio
Parameter 7-08 Speed PID Feed Forward Factor
Table 375: Parameter 7-08 Speed PID Feed Forward Factor
7-08 Speed PID Feed Forward Factor
Default value: 0%
Conversion index: 0
The reference signal bypasses the speed controller by the amount specified. This feature increases the dynamic performance of the
speed control loop.
Parameter 7-09 Speed PID Error Correction w/Ramp
Table 376: Parameter 7-09 Speed PID Error Correction w/Ramp
7-09 Speed PID Error Correction w/Ramp
Default value: Size related
Conversion index: 67
The speed error between ramp and actual speed is held up against the setting in this parameter. If the speed error exceeds this
parameter entry, the speed error is corrected via ramping in a controlled way.
M ot or
Speed
Speed
Er r or
T or que
T ime
Limit
M ot or
Speed
Speed
Er r or
T or que
Limit
T ime
R amp
M ot or Speed
Illustration 67: Speed Error Between Ramp and Actual Speed

4.8.4 7-1* Torque PI Control

Parameters for configuring the torque PI control.
194 | Danfoss A/S © 2021.08
n1 n2
Motor
Par 7-07=n1/n2
Parameter type: Range, 0 - 500%
Data type: Uint16
Parameter type: Range, 10 - 100000 RPM
Data type: Uint32
Parameter Descriptions
Setup: All setups
Change during operation: False
Setup: All setups
Change during operation: True
AU373327181955en-000101 / 130R1208