how to detect Locked Rotor with Altivar ATV320

Hello. It is possible. There are some functions in monitoring menu (Conf-Full-Monitoring if VW3A1101 is used) or in fault management menu. If you want to stop the drive and to display fault if rotor is blocked you can use
1. Process overload or
2. Torque or I limit detect

1. For process overload (by default it is off because 0 seconds is set in timeout) you need to set the timeout for detections, threshold and the action to be done. Also there is srb parameter to define accepted deviation between frequency reference and motor speed. Altivar 320 will show process overload fault if rotor is blocked.
2. For Torque or I limit activation you have to enable torque limitation (in application function menu) and to define level of the torque. In monitoring menu (VW3A1101) or fault management menu then to define timeout and action to be done ,e g. freewheel stop. When rotor is blocked, Altivar 320 will display fault torque/current limit

Publié pour: Schneider Electric Belgium