A0140 fault in WEG CFW500 Drive

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A0140 alarm in WEG CFW500 Drive indicates a Profibus DP Module Access Error. This means the internal connection between the drive and the Profibus option card is failing. 

Cause:

  • The Profibus DP module is not seated properly in the slot.
  • Hardware errors due to improper handling or installation of the accessory module.


Remedy:

Verify Profibus module mounting in slot. Replace communication module if handling errors damaged the pins.

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