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FF51 fault in ABB ACS800 drive

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Cause : LINE CONVERTER comes when fault on line side converter. A fault on the line-side converter prevents the drive from operating correctly.

The code FF51 in your ABB ACS800 drive indicates a fault on the line-side converter. This is a critical component within the drive that's responsible for converting incoming AC power to DC voltage for the internal circuit.

  1. Shift panel from motor side converter control board to line side converter control board.
  2. See line side converter manual for fault description.
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