Motor Vibration Problem
Motor Vibration Problem
(OP)
I'm driving a 2.2 kW induction motor with a 7.5 kW drive. In v/f mode, there's no problem but in sensorless speed vector mode, motor vibrates especially at lower speeds. Drive has a auto tuning function for parameter estimation but it does not work for rotor time constant without encoder. Anyway i could not be able to make it run smooth in vector mode. What may you suggest me?





RE: Motor Vibration Problem
Usually, it is more a question of the P in the frequency loop. Or the I part. Have you tried reducing P and/or increasing I time?
Gunnar Englund
www.gke.org
RE: Motor Vibration Problem