| 摘要 |
PURPOSE:To automate the position control of controlled system, and to increase the working efficiency and productivity, by constituting of an oscillator producing continuous pulse signal and a position control circuit including up-down type counters and comparators. CONSTITUTION:The position controller 10 consists of an oscillator 11 producing continuous pulse signal (a), and >=1, e.g. two position control circuits 12Y, 12X which drive the driving means of the trimming nozzle as the controlled system, i.e. pulse motors 17X, 17Y with the pulse signal (a), based on the relation of magnitude after comparison, between the count value calculating the pulse signal (a) at the up-down type counter 14 and the set value of the coordinate set circuit 13, at the comparator 15. With this constitution, the position control of the controlled system can be made automatical, the working efficiency can be increased, and the productivity can be increased. |
