PLC double-line multifunctional electrical control system of AC lifter

The utility model discloses a PLC double-line multifunctional electrical control system of an AC lifter, which belongs to an electrical control device and comprises a main control bench, a vacuum high-pressure switch cabinet, a vacuum high-pressure turning cabinet, a vacuum rotor accelerating cabinet, coders and sensors used for collecting the signals of a lifter, and a backup protection unit. The individual coders and the individual sensors transmit the collected signals to the main control bench; and the main control bench controls the related states and working points of the lifter, drive the vacuum high-pressure switch cabinet, the vacuum high-pressure turning cabinet and the vacuum rotor accelerating cabinet, and finally loads the controllable energy to the working machines to ensure the safe operation of the working machines. The electrical control system has the benefits of changing the control mode of the AC lifter in the mine, achieving the intermittent detection function of the brake shoe and the co