Maintenance of CT B ultrasonic synchronous servo driverJiaHongWei repair can repair common faults of CT B ultrasonic synchronous servo driver, servo spindle motor and so on: no display, phase missing, overcurrent, overvoltage, undervoltage, overheating, overload, grounding, parameter error, display and output, module damage, etc.Jia Hongwei maintenance service hotline: 0755-28916839, 13640994287 Mr. Shaw