How to adjust the rotational speed of a hollow rotary table?

The speed adjustment method of a hollow rotary table is usually achieved by adding a feedback control link to the motor speed. Under encoder feedback control, the motor speed is controlled to achieve closed-loop speed control by feedback speed information from the encoder on the motor rotor; Under PID control, based on the set speed value of the hollow rotary table and the actual speed feedback from the encoder, the error is calculated and adjusted through the PID algorithm to control the motor speed. In addition, analog control, digital control, and other methods can be used according to the speed requirements.