| 摘要 |
PURPOSE:To suppress the deterioration of the production control accuracy by deciding the operation carried out by a start/end transmission means as a misoperation when the work time is less than the minimum reference time. CONSTITUTION:When an operator operates an end switch 21b after the end of a prescribed work process, a control routine is controlled to decide whether a timer is started or not. If so, the timer value is stored. As this timer value corresponds to the work time, the minimum reference time is calculated based on the stored work time and the data on a minimum reference coefficient. Then the stored work time is compared with the minimum reference time and when the former is smaller than the latter, the misoperation of the switch 21b is decided and an alarm buzzer 21c is actuated. |
