F0085 fault in WEG CFW500 Drive

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F0085 fault in WEG CFW500 Drive indicates the Plug-in Module Will not Start. This means the accessory card failed to initialize properly, likely due to a defective board or missing firmware. 

Cause:

  • Defect on the plug-in module.
  • Poor contact on the connections of the plug-in module to the inverter.
  • Plug-in module does not have firmware loaded.


Remedy:

Verify physical seat of the plug-in board. Check for firmware matching.

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