Data type: Uint32 Change during operation: True
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.
21-23 Ext. 1 Differentiation Time
Default value: 0.00 s Parameter type: Range (0.00 s–10.00 s)
Setup: All setups Conversion index: -2
Data type: Uint16 Change during operation: True
The differentiator does not react to a constant error. It only provides a gain when the error changes. The quicker the error changes, the
stronger the gain from the differentiator.
21-24 Ext. 1 Dif. 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
Set a limit for the differentiator gain (DG). The DG increases if there are fast changes. Limit the DG to obtain a pure differentiator gain at
slow changes and a constant differentiator gain where quick changes occur.
4.19 Parameter Group 22-** Appl. Functions
4.19.1 22-0* Miscellaneous
22-02 Sleepmode CL Control Mode
Default value: [0] Feed. and Speed Parameter type: Option
Setup: All setups Conversion index: –
Data type: Uint8 Change during operation: True
Set whether the feedback is detected for entering sleep mode in process closed loop.
Option Name Description
[0] Feed. and Speed Feedback is detected together with the
speed.
[1] Speed Feedback is not detected, only sleep
speed and time are checked.
[2] Feedback Only feedback is detected.
4.19.2 22-4* Sleep Mode
The sequence when running sleep mode in open loop:
1. The motor speed is less than parameter 22-47 Sleep Speed [Hz] and the motor has been running longer than parameter 22-40
Minimum Run Time.
2. The drive ramps the motor speed down to parameter 1-82 Min Speed for Function at Stop [Hz].
276 | Danfoss A/S © 2024.01 AU275649936274en-001401 / 130R0507
Programming Guide | VLT® AutomationDrive FC 360
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