Allen Bradley PowerFlex 753, PowerFlex 755, PowerFlex 755T & PowerFlex 755TS Drive
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Mar 15, 2024 7:04 am
Cause : PM FV Alt Fdbk comes when a control mode and alternate-feedback device configuration error. P35 [Motor Ctrl Mode] is set to the permanent magnet flux vector “PM FV” control mode, P635 [Spd Options Ctrl] is set to bit 7 “Auto Tach SW,” P128 [Alt Vel Fdbk Sel] is set to P137 [Open Loop Fdbk] (port 0). Only applicable to Frame 8 drives and larger.
