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VFC 3210
Optimization functions for V/f control
Zero speed control selection
Code
C2.20 0 Hz output mode
C2.20=0: No any torque output in this mode.
C2.20=1: There is certain torque output in this mode.
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
C2.23 Heavy load stabilization
Light load oscillation damping
This function is used to suppress the motor oscillation in the case of light load
or no load.
Code
C2.24 Light load oscillation damping factor
C2.25 Light load oscillation damping filter factor
[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.
DOK-RCON04-VFC3210****-IT01-EN-P
Name
Name
Name
Functions and Parameters
Setting range
Default
0: No output
1: Standard
Setting range
Default
0: Inactive
1: Active
Setting range
Default
0...5,000 %
10...2,000 %
100
Bosch Rexroth AG
Min.
Attri.
1
-
Stop
Min.
Attri.
1
–
Run
Min.
Attri.
0
1
Run
1
Run
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