DrWhoF
Advanced Member level 1
VSD problem
I have variable speed drive which is faulty.
As advised by board members I removed the IGBT module and tested it with a power supply. All transistors can be turned on and off.
I can't find any damaged or faulty component but the VSD still causes the motor to "jerk" and the RUN LED pulses instead of being on.
Any possible reasons?
I have variable speed drive which is faulty.
As advised by board members I removed the IGBT module and tested it with a power supply. All transistors can be turned on and off.
I can't find any damaged or faulty component but the VSD still causes the motor to "jerk" and the RUN LED pulses instead of being on.
Any possible reasons?