Optimization functions for V/f control
Heavy load voltage stabilization
This function is used to suppress the output voltage and current oscillation
caused by large impact to DC-bus voltage in case of heavy load.
Code
Name
Setting range
Default
Min.
Attri.
C2.23 Heavy load stabilization
0: Inactive
1: Active
1
–
Run
Light load oscillation damping
This function is used to suppress the motor oscillation in the case of light load
or no load.
Code
Name
Setting range
Default
Min.
Attri.
C2.24 Light load oscillation damping factor
0...5,000 %
0
1
Run
C2.25 Light load oscillation damping filter factor
10...2,000 %
100
1
Run
●
[C2.24] = 0 %: Oscillation suppression is inactive.
●
Increasing [C2.24] brings a better effect of oscillation suppression, but exces-
sive increase leads to unstable running of the motor.
●
[C2.25] = 100 %: This setting can suppress oscillation in most situations.
●
Adjustment of [C2.25] is helpful in the following conditions:
– Increase [C2.25] if the oscillation damping performance is not obvious, but
excessive increase leads to slow suppression.
– Decrease [C2.25] if the oscillation occurs at low speed.
EFC x610 Series
Bosch Rexroth AG
Functions and Parameters
DOK-RCON03-EFC-X610***-IT05-EN-P
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