| 摘要 |
PURPOSE:To obtain the position adjusting system with high accuracy by applying a voltage at adjustment equal to or larger than that at moving to a winding in a positioning adjusting device to adjust the position. CONSTITUTION:A timer 8 gives a signal to a step motor 1, which is driven when two adjacent signals of drive control signals B, C, D, E of the step motor 1 are turned on sequentially. With adjacent two signals set, a voltage of +24V is applied to the step motor 1 from a point of time when the signals are unchanged timewise to the setting time. A switch 9 is provided so as to apply the +24V to the step motor 1 even after the setting time of the timer 8 is over, and the switch 9 is turned on at the adjustment of the positioning device to apply the +24V to the step motor 1 at all times. Thus, the switch 9 is turned on at adjustment and the 24V drive and 5V holding are attained by turning off the switch 9 after the end of adjustment. |
