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What causes a CbF [Circuit Breaker Error] fault on an ATV340 series drive and how do I correct it?
Issue:
How can you resolve a CbF [Circuit Breaker Fault]  on an ATV340 series drive?

Product Line:
ATV340

Environment:
Circuit Breaker Logic function is being used.

Cause:
The DC bus voltage level is not correct compared to the circuit breaker logic control (start or stop pulse)
after the configured timeout [Mains V. time out] LCt.

Resolution:
 Verify the circuit breaker logic control (pulse time for start and stop).
 Verify the mechanical state of the circuit breaker.

Schneider Electric Belgium

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