Debugging, operation and maintenance of the fan, starting the fan: Before starting the fan, carefully check whether the insulation function of the motor is good, whether the motor wiring is correct and firm, and whether the bearing is in good condition. Bearings must be able to start in a good and stable state.
The switching power supply must be confirmed. People must monitor the operation of the fan. If there is any abnormality, stop the fan immediately. First, make sure the rotation direction is appropriate.