| 摘要 |
PURPOSE:To highly accurately control a resist clutch, by installing two timers and one latch to a resist control circuit. CONSTITUTION:By giving different reference clocks to two timers 13 and 14 and causing them to count up independently, the ON/OFF control of a resist clutch 10 is performed. On the other hand, when an abnormal state, such as jamming, occurs, the ON/OFF control of the resist clutch 10 is performed by means of a latch 15 independently from the operations of the timers 13 and 15. Therefore, when the timer values which turn ON/OFF the resist clutch 10 are set, the resist clutch 10 can be controlled. Moreover, since hard timers are used, reference frequencies are not omitted and highly accurate resist control can be performed. |
