Kruger Ecowatt K320 Series Operation Manual page 71

Ecowatt Drive K320 series
®
Oscillation control
(4)
Motor oscillation often occurs in space voltage vector control in large-power driving
applications. To solve this problem, the VFD provides two oscillation factor function codes.
You can set the function codes based on the oscillation occurrence frequency.
Note: A greater value indicates better control effect. However, if the value is too large, the VFD
output current may be too large.
AM IF control
(5)
Generally, the IF control mode is valid for AMs. It can be used for SMs only when the
frequency is extremely low. Therefore, the IF control mode described in this manual is only
involved with AMs. IF control is implemented by performing closed-loop control on the total
output current of the VFD. The output voltage adapts to the current reference, and open-loop
control is separately performed over the frequency of the voltage and current.
Customized V/F curve (V/F separation) function:
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Basic operation guidelines