Allen Bradley PowerFlex 40, PowerFlex 40P & PowerFlex 400 Drive
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Mar 09, 2024 5:10 am
Cause : Encoder Loss comes when incorrect encoder parameters or faulty encoder wiring. This fault also comes when encoder is faulty.
1. Check Wiring.
2. If P038 [Speed Reference] = 9 “Positioning” and E216 [Motor Fdbk Type] = 5 “Quad Check” swap the Encoder channel inputs (see page 1-18) or swap any two motor leads.
3. Replace encoder.
