Allen Bradley PowerFlex 70, PowerFlex 700, PowerFlex 700L & PowerFlex 700S Drive
1
Posts
1
Users
0
Reactions
336
Views
Mar 11, 2024 12:40 pm
Cause : Over Frequency Fault comes when encoderless algorithm fails to converge on correct speed. Two possible causes: Velocity regulator is attempting to run below motor’s slip speed Frequency regulator “pulls out” and commanded motor frequency slows to maximum frequency limit.
