Servo Controlled Drive for Motor conducts follow-up control to a target position and speed and therefore adapted to a wide range of high-speed and high-performance equipments and automated machines used in plants. The Servo Drive has a torque control facility and can continuously change the speed in response to a speed reference voltage. The Servo Drive can control the rotation speed and rotation angle of a motor from a particular position reference. Servo Controlled Drive for Motor can control the torque generated by a motor by a torque reference input.