Delta VP3000 Series - Page 502

Chapter 8 Troubleshooting｜VP3000
493
Cause
Corrective Actions
Hardware failure
The ocA occurs due to short circuit or ground fault at the output side of the drive.
Check for possible short circuits between terminals with the electric meter
corresponds to U, V and W.
If short circuit occurs, return to the factory for repair.
Check if the setting for stall
prevention is correct
Set the stall prevention to the proper value.