A0133 fault in WEG CFW500 Drive

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A0133 alarm in WEG CFW500 Drive indicates No Supply on the CAN Interface. This means the required 24V external power supply is missing from the CAN network connector. 

Cause:

  • Power supply cables are misconnected or inverted.
  • Poor contact on the cable or connector of the CAN interface.


Remedy:

Measure if there is voltage within the allowed range between pins 1 and 5 of the CAN interface connector. Check terminal strip alignment and cable contact.

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