Electric shutter doors:
A plurality of movable door pieces are connected in series, and the starting is driven by a motor group. The shutter door rotates the upper and lower doors in the fixed slideway with the scroll above the door as the center.
Structure principle of switch wiring of electric shutter door;
1. The working principle of the shutter motor is an ordinary reversible control circuit. The operation buttons are Up, Down and Stop.
2. The reversible control circuit of the roller shutter motor must also be equipped with upper and lower limit switches and limit protection switches as protection devices.
3. The reversible control circuit of computer-controlled roller shutter motor also depends on reversible contactor.