Common failure reasons for the prevention and elimination method of motor does not start no input power supply plug wire or wires contact undesirable change lines or connect the wire for the power supply voltage is not correct or low voltage apparatus check voltage thermal protection actions ( High ambient temperature or using high frequency) Reduce the surrounding temperature, reduce use frequency or sensitivity breakdown replacement power capacitor power capacitor input signal error change input signal choose to run automatically on the way to stop because of excessive load and overload protection check regulator ruled out load thermal protection action and referred to in the preceding paragraph shall be the same regulator biting a foreign body inside even if manual operation is also very hard to remove the packing gland too tighten loose try manual operation difficult packing gland try too tighten loose internal accident remove Industrial Valves check valve didn't show the opening of the opening of the signal line of the opening of the poor contact or break line to check the connection of the opening signal to reach full close installed potentiometer bad check potentiometer with don't stop the upper and lower limit switch motor given CAM adjustment bad to stop poor contact replace limit switch control reduce motor torque motor with instruments under voltage sensitivity check voltage, make the normal low power supply voltage or high oscillation sensitivity adjustment potentiometer sensitivity, lower sensitivity
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