Delta CFP2000 Series User Manual page 497

Chapter 14 Fault Codes and DescriptionsCFP2000
Cause
Hardware failure
Check if the setting for stall
prevention is correct
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:
B1 corresponds to U, V and W; DC- corresponds to U, V and W;
corresponds to U, V and W.
If short circuit occur, return to the factory for repair.
Set the stall prevention to the proper value.
14-2
Corrective Actions