| 摘要 |
PURPOSE:To accurately position a moving body on an objective position by giving a stop command to a motor when a residual of the moving body on a current position from the objective position is equal to an overrun correcting variable or a value slightly larger than the correcting variable. CONSTITUTION:When the moving body 16 is stopped across the objective position, the motor 12 is reversed and the moving body 16 is positioned just before the objective position to remove the influence of backlash in a moving body carrying system 14. Then the moving body 16 is moved to the objective position, and when the residual of the moving body 16 from the objective position reaches a value slightly larger than the overrun correcting variable, a stop command is applied to the motor 12 under the consideration of overrun correcting variable or the inclination of overrun in the carrying system 14. Consequently, the moving body can be accurately positioned on the objective position.
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