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F091 fault in allen bradley PowerFlex 525 drive

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(@click2electro)
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Joined: 4 years ago

Cause : Encoder Loss comes when incorrect encoder parameters or faulty encoder wiring. This fault also comes when encoder is faulty.

  • Check Wiring.
  • If P047, P049, P051 [Speed Referencex] = 16 “Positioning” and A535 [Motor Fdbk Type] = 5 “Quad Check”, swap the Encoder channel inputs or swap any two motor leads.
  • Replace encoder.
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