The unmanned electromechanical adjustment has a total of five lines. 3 at one end, 2 at the other end, 3 with the motor connected to 3 lines, no matter whether it is positive or negative,
As long as the direction of rotation is reversed, any two wires can be exchanged. The other two are power cords, which are directly connected to the battery. Forgot to have a thin servo plug, this is directly connected to the flight controller or receiver.