Motor Controllers AC Variable Frequency Drives Type VariFlex
3
RVLF
Specications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 13/12/2017 129
5.3.6. Motor Runs Unbalanced
NO
YES
NO
NO
YES
NO
YES
YES
NO
Does it happen
during eceleration?
Motor runs unevenly
Is the acceleration
time correct ?
Are the output voltages
between U-V,V-W,W-U
balanced?
Is the load uctuating
?
Any mechanical vibration or
gear backlash
Increase the Acc/ Dec time
Reduce the load.Increase
capacities of INV and the motor.
INV faults
Reduce the load uctuation
or add a ywheel.
Inspect the mechanical
system
INV faults
YES
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