POSITIONING CONTROLLER

摘要

PROBLEM TO BE SOLVED: To improve the positioning performance for a controlled target by fetching the positional difference of the controlled target caused by the spring attribute of a mechanical system in a position controller to a servo control system. SOLUTION: This positioning controller for moving the controlled target 5 mounted on a table 4 through a ball screw 2 and the table 4 by driving a motor 1 to position the target 5 detects the position (d) of the table 4 or the target 5 in accordance with the rotation of the screw 2 and reduces the gain 13 of the servo control system in the controller in accordance with the separation of the position (d) from the motor 1.