OV-BUS Alarm

The OV-BUS fault is caused by over voltage on the DC busbar INTERNAL to the inverter. This can be caused by several reasons, but they are all internal failures of the inverter. They cannot be repaired by the customer. 

  1. Power Board is broken
  2. Relays are damaged
  3. Connections between EMI board and Power board are not connected

Escalate to Level 2 Support

Victor is the author of this solution article.

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