Issue:
SOF fault on the ATV32 drives
Product Line:
Altivar 32, ATV32
Resolution:
SOF is an overspeed fault typically caused by a load driving the motor to spin faster than the VFD is attempting to run it.
The motor may be turning when the drive gets a run command. Turn on Catch on the Fly (FLr=On)
Check the motor. gain and stability parameters
Add a braking resistor.
Check the size of the motor/drive/load.
Check the parameters settings for the FREQUENCY METER (F9F-) function if it is configured.
Released for: Schneider Electric Vietnam
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