| 摘要 |
PURPOSE:To enable to accurately shift the driven body to the prescribed position by a method wherein the counted value of a counter is corrected by comparing and correcting the output of a setting circuit and the counter. CONSTITUTION:The counter 12 counts the output pulse of a driving pulse generating circuit 11 which drives a pulse motor 3. The output of the counter 12 and the output of the setting circuit 17, with which an absolute driving pulse number will be set, are compared by a comparison circuit 13, the intensity of these outputs large or small, is decided by a decision circuit 14, and a correction signal is given to the counter 12 from a correction circuit 15 or 16 in accordance with the result obtained from the above comparison and decision. The output of the counter 12 is compared with the output of a controlling circuit 9, and said output is applied to a driving pulse generating circuit 11. |
