Programming Guide | VLT® AutomationDrive FC 360
Select for the Process PID Anti Windup function.
Option Name Description
[0] Off Continue regulation of an error even
when the output frequency cannot be
increased or decreased.
[1] On Cease regulation of an error when the
output frequency can no longer be
adjusted.
7-32 Process PID Start Speed
Default value: 0 RPM Parameter type: Range (0–6000 RPM)
Setup: All setups Conversion index: 0
Data type: Uint16 Change during operation: True
Enter the motor speed to be attained as a start signal for commencement of PID control. When the power is switched on, the drive starts
to ramp and then operates under speed open loop control. When the process PID start speed is reached, the drive changes to process
PID control.
7-33 Process PID Proportional Gain
Default value: 0.01 Parameter type: Range (0.00–10.00)
Setup: All setups Conversion index: -2
Data type: Uint16 Change during operation: True
Enter the PID proportional gain. The proportional gain multiplies the error between the setpoint and the feedback signal.
7-34 Process PID Integral Time
Default value: 9999.00 s Parameter type: Range (0.10–9999.00 s)
Setup: All setups Conversion index: -2
Data type: Uint32 Change during operation: True
Enter the PID integral time. The integrator provides an increasing gain at a constant error between the setpoint and the feedback signal.
The integral time is the time needed by the integrator to reach the same gain as the proportional gain.
7-35 Process PID Differentiation Time
Default value: 0.00 s Parameter type: Range (0.00 s–20.00 s)
Setup: All setups Conversion index: -2
Data type: Uint16 Change during operation: True
Enter the PID differentiation time. The differentiator does not react to a constant error, but provides a gain only when the error changes.
The shorter the PID differentiation time, the stronger the gain from the differentiator.
Danfoss A/S © 2024.01 AU275649936274en-001401 / 130R0507 | 165
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