The forward and reverse rotation of the motor represents the clockwise and counterclockwise rotation of the motor. The clockwise rotation of the motor means the forward rotation of the motor, and the counterclockwise rotation of the motor means the reverse rotation of the motor.
The circuit diagram and principle analysis of forward and reverse control realize the forward and reverse rotation of the motor, which can be realized by switching any two-phase wiring connected to the three-phase power supply of the motor. The forward and reverse rotation of motors are widely used, such as planers, bench drills, wire cutting machines, dryers, driving and woodworking lathes.
Extended data:
In order to make the motor rotate forward and backward, two contactors KM 1 and KM2 can be used to switch the phase sequence of the three-phase power supply of the motor, but the two contactors cannot be pulled together. If they are pulled together at the same time, it will cause a short circuit accident of power supply. In order to prevent this kind of accident, the circuit should adopt reliable interlocking, and the control circuit with double interlocking of button and contactor should be used for the forward and backward operation of the motor.
After the motor starts to run forward (or backward), you don't need to press the stop button to stop the motor first, just press the reverse (or forward) start button to make the motor run backward.
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