How to connect the motor of automatic retractable door in the forward and reverse direction?

1. The essence of forward and reverse rotation of single-phase motor is to change the direction of magnetic field generated by winding.

2. Wiring diagram:

3. Description of connection: The black line is connected to the zero line, the red line is connected to the left fire line, and the rest are white lines.

4. Just in case, whether the motor is connected with a capacitor or not, an external capacitor is more suitable. Generally, the motor within 100W adopts 2UF/400V nonpolar capacitor. If the temperature rise is high after the motor runs for a few minutes, the capacitor needs to be adjusted.