Danfoss VLT AutomationDrive FC 360 Programming Manual page 160

Programming Guide | VLT® AutomationDrive FC 360
Option
[6]
[7]
[8]
[9]
[12]
[20]
7-01 Speed PID Droop
Default value:
0 RPM
Setup:
All setups
Data type:
Uint16
Adjust the speed reduction at 100% load.
7-02 Speed PID Proportional Gain
Default value:
0.015
Setup:
All setups
Data type:
Uint16
Enter the speed controller proportional gain. The proportional gain amplifies the error (that is the deviation between the feedback
signal and the setpoint). This parameter is used with parameter 1-00 Configuration Mode [1] Speed closed loop control. Quick control is
obtained at high amplification. However, if the amplification is too high, the process may become unstable.
7-03 Speed PID Integral Time
Default value:
Size related
Setup:
All setups
Data type:
Uint32
Enter the speed controller integral time, which determines the time the internal PID control takes to correct errors. The greater the error,
the more quickly the gain increases. The integral time causes a delay of the signal, and therefore a dampening effect, and can be used to
eliminate steady-state speed error. Obtain quick control through a short integral time, though if the integral time is too short, the process
becomes unstable. An excessively long integral time disables the integral action, leading to major deviations from the required reference,
since the process regulator takes too long to regulate errors. This parameter is used with [1] Speed closed loop control set in parameter
1-00 Configuration Mode.
7-04 Speed PID Differentiation Time
Default value:
Size related
Setup:
All setups
Data type:
Uint16
158
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Name
Analog Input 53
Analog Input 54
Frequency input 29
Frequency input 33
MCB 102 Absolute
None
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Range (0–200 RPM)
0
True
Range (0.000–1.000)
-3
True
Range (2.0–20000.0 ms)
-1
True
Range (0.0–200.0 ms)
-1
True
AU275649936274en-001401 / 130R0507