Servo drives, also called amplifiers, take the command signals for position, speed, or torque requirements, and alters the output voltage applied to the servo motor utilizing closed loop control.
A servo system is comprised of multiple components, including a master controller, a motor, and feedback devices. Among them, the servo drive is the most critical component. The communication between controllers and additional devices is enabled by a simple digital and analogue I/O or digital fieldbus communication, such as EtherCAT and CANopen, as well as other industry standard protocols. Motor technology is continuously evolving to offer optimal results for every application. Servo drives evolve along with them to maintain the ability to provide the best control features for each type of motor.