ga-160-motor-drive-motor

Hi, The motor is started through a star-delta switch system. (startup in star, after a few seconds, switch to delta). There should be 3 main contactors (relais) that take care of this. These contactors have auxiliary contacts that are separate from the main (power) contacts. These contacts provide feedback to the controller (open/closed). If you get this error, one of 3 things is happening: 1) The contactor really is not opening/closing, so the feedback contact is correct and an error comes up. 2) The contactor is working (main contacts) but the auxiliray contacts are bad. 3) There is a wiring problem to/from the auxiliary contacts (loose contact, etc). Please check if the contactor is actually switching or not. If it is, check the auxiliary contact with a multimeter (be careful or ask an electrictian if not 100% sure).