Thông số kỹ thuật servo motor Allen bradley: The Allen-Bradley MPF-B4540F-SJ74BA Rotary Servo Motor is an electrically operated motor with a special winding type that allows for very accurate control of the position of the shaft and the speed of movement for applications in the motion control and robotic industries. It is a member of the MPF Servo Motors series. It uses a dedicated encoder to inform the central servo controller system about the real-time position of the motor.