text: <s>[INST] PowerFlex 700S doesn't spin motor Summary: PowerFlex 700S running, without alarms, but doesn't spin motor - Hi guys, -We have a PowerFlex 700S Phase II Frame 10 Cat: 20D385A0ENNBNGNE, where with the speed reference, and running, sometimes doesn't spin motor. We had checked parameters 125,126, (Torque Pos Limit and Torque Neg Limit) and both are ok, wiring, (optic fiber) are ok. When the issue appears, it's possible to see on the High Power Fiber Optic Interface circuit board the fibers U,V,W and others blinking when grow up the speed reference, but the motor doesn't spin. It's possible a hardware problem? [/INST] What mode are you running the 700S? Flux Vector or V/Hz? If Flux Vector, try running an auto-tune. \\n </s>