Vision REVO Product User Manual page 78

When the CBMS has a communication failure, the contactor cannot be closed due to the failure
of the self-check, and the circuit breaker fails to close, etc., check if it is a hardware problem,
consider replacing the CBMS.

Step 1
All the MCB of the CBMS must be
safety operation.
Figure 14.9 MCB OFF

Step 2
If there is a junction cabinet between the UPS and the battery cabinet, you need to disconnect
the junction cabinet switch between the UPS and the battery cabinet,make sure that the connection
between the battery pack and the UPS DC bus must be cut off.
Figure 14.10 disconnect the junction box
disconnected, CBMS DC bus voltage must be cut off for
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