As is known, the servo system is composed of a servo motor and a servo driver. The servo driver controls the servo motor to perform mechanical operation, and the servo motor is also an auxiliary motor indirect shifting device. Especially for high-power ac servo motors widely used in industrial automation, its control speed and position accuracy are very accurate. It can convert voltage signals into torque and speed to drive control objects. It has a small time constant in the automatic control system. , high linearity and other characteristics are used as actuators.

The main feature of the servo motor is that there is no auto-transmission when the signal voltage is zero, and the speed will decrease uniformly with the increase of the torque. The advantages are: high precision, high speed performance, usually rated speed can reach 2000-3000 rpm, strong anti-overload capability and high stability, suitable for high-speed response occasions, and its heat and noise have no obvious phenomenon. As long as it has a power source, it can be seen in the occasions where accuracy is required.