Programming Guide | VLT® AutomationDrive FC 360
Option Name Description
[0] Normal Use the calculated output from the
Process PID Controller.
[1] Inverse Invert the calculated output from the
Process PID Controller. This operation is
performed after the feedforward factor is
applied.
4.8.6 7-5* Adv. Process PID II
This parameter group is only used if parameter 1-00 Configuration Mode is set to [7] Extended PID speed CL.
7-50 Process PID Extended PID
Default value: [1] Enabled Parameter type: Option
Setup: All setups Conversion index: –
Data type: Uint8 Change during operation: True
Enable or disable the extended parts of the PID controller.
Option Name
[0] Disabled
[1] Enabled
7-51 Process PID Feed Fwd Gain
Default value: 1.00 Parameter type: Range (0.00–100.00)
Setup: All setups Conversion index: -2
Data type: Uint16 Change during operation: True
The feedforward is used to obtain the gain, based on a well-known signal available. The PID controller then only takes care of the smaller
part of the control, necessary because of unknown characters. The standard feedforward factor in parameter 7-38 Process PID Feed
Forward Factor is always related to the reference whereas parameter 7-51 Process PID Feed Fwd Gain has more options. In winder
applications, the feedforward factor is typically the line speed of the system.
7-52 Process PID Feed Fwd Ramp up
Default value: 0.01 s Parameter type: Range (0.01–100.00 s)
Setup: All setups Conversion index: -2
Data type: Uint32 Change during operation: True
Control dynamics of the feedforward signal when ramping up.
7-53 Process PID Feed Fwd Ramp down
Default value: 0.01 s Parameter type: Range (0.01–100.00 s)
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