Name: Danfoss VLT AutomationDrive FC 360
Brand: Danfoss
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7-36 Process PID Diff. Gain Limit

Default value: 5.0 Parameter type: Range (1.0–50.0)

Setup: All setups Conversion index: -1

Data type: Uint16 Change during operation: True

Enter a limit for the differentiator gain. If there is no limit, the differentiator gain increases when there are fast changes. To obtain a pure

differentiator gain at slow changes and a constant differentiator gain where fast changes occur, limit the differentiator gain.

7-38 Process PID Feed Forward Factor

Default value: 0% Parameter type: Range (0–200%)

Setup: All setups Conversion index: 0

Data type: Uint16 Change during operation: True

Enter the PID feedforward (FF) factor. The FF factor sends a constant fraction of the reference signal to bypass the PID control, so the

PID control only affects the remaining fraction of the control signal. Any change to this parameter affects the motor speed. When the FF

factor is activated, it provides less overshoot, and high dynamics when changing the setpoint. Parameter 7-38 Process PID Feed Forward

Factor is active when parameter 1-00 Configuration Mode is set to [3] Process.

7-39 On Reference Bandwidth

Default value: 5% Parameter type: Range (0–200%)

Setup: All setups Conversion index: 0

Data type: Uint8 Change during operation: True

Enter the on-reference bandwidth. When the PID control error (the difference between the reference and the feedback) is less than the

value of this parameter, the on-reference status bit is 1.

4.8.5 7-4* Adv. Process PID I

This parameter group is only used if parameter 1-00 Configuration Mode is set to [7] Extended PID speed CL.

7-40 Process PID I-part Reset

Default value: [0] No Parameter type: Option

Setup: All setups Conversion index: –

Data type: Uint8 Change during operation: True

Select [1] Yes to reset the I-part of the Process PID Controller. The selection automatically reverts to [0] No. Resetting the I-part makes it

possible to start from a well-defined point after changing something in the process, for example changing a textile roll.

Option Name

[0] No

[1] Yes

Programming Guide | VLT® AutomationDrive FC 360

Danfoss VLT AutomationDrive FC 360 Programming Guide

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