Common four parts of motion control system

1. Controller: used to generate track points, i.e. expected output.

2. Driver: It is used to convert the control signal (usually speed or torque signal) from the motion controller into a current or voltage signal of higher power and output it to the actuator.

3. Actuator: such as hydraulic pump, cylinder, linear actuator or motor, used to output movement.

4. Feedback sensor: The external encoder in the case is a common feedback sensor. The sensor feeds back the position, speed, torque and other signals of the actuator to the controller or driver to achieve closed-loop control. Other common sensors include photoelectric encoder, rotary transformer or Hall effect equipment.