Energized motor does not turn a buzz

    l. The cause of the fault (1) stator and rotor winding circuit (phase disconnection) or power a relative loss of power; (2) winding pinout whole story fault termination or winding internal reversed; (3) power circuit contacts loose, the contact resistance; ④ motor load the large rotor stuck; (5) power supply voltage is too low; the ⑥ small motor assembly is too tight or bearing grease perfect; (7) bearing stuck.

    2. Troubleshooting (1) identify the breakpoint to be repaired; (2) Check winding polarity; determine the end of the winding is correct; (3) fastening and loosening the terminal screws with a multimeter to determine whether each connector false then be repaired; (4) load shedding or to detect and eliminate the mechanical failure ⑤ check is also under the surface connection misconnection Y; whether the power wires are too small so that the pressure drop is too large to be corrected, the ⑥ reassembled to make it flexible; replace qualified grease; bearing ⑦ repair.