The failure of the power supply of the electric carrier is often encountered when the electric carrier is working, and there are many factors that may cause it. Let's talk about what are the reasons for the failure of the power display of the electric carrier.

1, the low voltage will also lead to the flat car no power display, the motor end voltage is more than 10% lower than the rated voltage, the motor starting torque is too small, so that the electric carrier can not move and work. During the inspection, use a multimeter or voltmeter to measure the input terminal voltage of the motor.

2, electrical damage, the main circuit and control circuit of the drive motor disconnected or poor contact will also make the drive motor of the flatbed car unable to work normally due to lack of phase. In this case, it is necessary to overhaul the main circuit and control circuit. During the overhaul, the motor will be burned to prevent a loss of phase of the power supply from the main circuit and control circuit to the three-phase motor.

3, check whether the power system to the electric flat car power supply. Typically, electrical probes are used for testing. If there is no power on, the work will be completed after power on.

4, when the drive motor of the electric flat car is suddenly energized, causing injury, the motor must be disconnected from the power line, only to the main circuit and control circuit power supply, and then push the start and stop switch, check and analyze the working condition of the control electrical appliances and circuits, repair or replace the faulty electrical appliances or circuits. The test can only be restarted after confirming that the main circuit and control circuit are fault-free.