What are possible causes for a DB Unit Short Circuit Fault on an ATV930 drive?

Issue:
What can cause a DB Unit Short Circuit Fault on an ATV930 drive?

Product Line:
ATV930, Altivar 930

Environment:
All

Cause:
NA

Resolution:
This fault may occur if the DB Transistor is shorted. Perform a Diode check across PA to PB to check if Transistor is shorted. Also, confirm BrA is set to Yes.

게시 대상: 슈나이더 일렉트릭 Korea