2. Stand-alone test, visual inspection vibration still exists. The coupling should be disconnected and the motor tested separately. If the motor does not vibrate, the vibration is caused by the installation of the main machine or the side shaft. If the vibration of the single-test motor still exists, the motor itself is defective. At this time, the instantaneous power-off method can be used to distinguish whether it is an electrical cause or a mechanical cause, or both, and the specific problem is: motor electromagnetic noise.
Possible phenomenon: Turn off the power supply, the noise disappears. First check and adjust the power supply voltage to make it balanced; check whether the single-phase operation; check the air gap to find the stator deformation and the rotor bending. Handle vibration. Look for winding open circuit, short circuit and grounding, and take corresponding measures to repair it.
36W Interchangeable Power Adapter
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