... minimize value, CW to maximize value)One 4 bit double row pin on drive circuit board for the working mode setting ... , number 1, 2, 3, 4 respectively from the outer to inner ... speed control, speed input by Pos.ff;plug in 2, torque control, torque input by Pos.ff;plug ... in 1 and 2, position control for positive pulse/negative pulse input;plug ...