Patent ID: 7319909
Filing Date: 2008-01-15
Classification: G05B

Abstract:
1. A position control device that controls a position of a driven body driven by a driver according to a predetermined position command, comprising: a position control loop including a position comparator that compares a current position of the driven body with the position command, and a position characteristic compensator that performs position characteristic compensation of the driven body based on a comparison result of the position comparator; a speed control loop including a speed comparator that compares a current speed of the driven body with an output value from the position characteristic compensator as a speed command, and a speed characteristic compensator that performs speed characteristic compensation of the driven body based on a comparison result of the speed comparator; an adder that adds the output value from the position characteristic compensator and an output value from the speed characteristic compensator; and a drive controller that operates the driver to drive the driven body based on an addition result of the adder.