1, the motor itself fault, mainly motor bearings bad, motor burn or power line single-phase or multi-phase disconnect, for such problems to be measured by measuring the motor into the line voltage and insulation as well as checking the motor bearings to determine the problem, so as to solve the problem symptomatically.
2, the reducer internal jamming or belt stuck: for specific cases to take out the jam or replace the reducer.
3, inverter failure, common over-voltage, over-current, overload and inverter overheating shutdown, other situations arise, you can find Zhongyu Technology, customer service to ask, I hope to help you.