Patent ID: 8819952
Filing Date: 2014-09-02
Classification: G01B,G05B,H01L

Abstract:
1. A control device for a parallel slider device, the parallel slider device comprising a first guide rail and a second guide rail that are disposed parallel to each other, a first slider and a second slider slidably supported by the first and second guide rails, respectively, along a lengthwise direction of the guide rails, a coupling means for mechanically coupling the first and second sliders to each other and a first electric servo actuator and a second electric servo actuator for driving the first slider and a second slider, respectively, in the lengthwise direction of the guide rails, wherein the control device comprises a first position control unit for controlling an operation of the first electric servo actuator and a second position control unit for controlling an operation of the second electric servo actuator, and wherein a same position command is given to the first and second position control units, and the first and second position control units are provided with mutually different control gains.