Design of Servo Control System for Three-axis Turntable Based on Programmable Multi-axis Controller

The closed-loop control system of three-axis turntable,which based on programmable multi-axis controller(PMAC),makes the optical encoder as the angular position sensor and the brushless DC motor as the torque servo motor system directly driving the loading rotation.The double-loop control strategy on the speed and location is used to realize the functions of turntable automatic test system such as location,velocity,swing,and the servo control functions.The practical operation indicates that this motion control system can meet the requirement of real-time turntable control,running steadily and operating easily.