| 摘要 |
PURPOSE:To put an automatic machine in unmanned operation by generating a stop signal in response to abnormality occurrence and operation completion, storing and displaying the stop signal, and turning off a power source and powering on necessary parts by a battery. CONSTITUTION:If a shortage of material, overheating of the machine, or fire, etc., is detected, a switch 10 is closed to generate the stop signal by a stop signal generating means 1, and the signal is stored in a storage circuit 2. The stop signal generating means 4 detects repetitive operation to operate the switch 10, and the frequency of switching is counted by a counter 19; when the counted value attains to a specific value or if abnormality occurs, the stop signal is generated even before the completion of the counting operation and this signal is stored in a storage means 2'. Storage means 2 and 2' turn on LEDs 15 of display circuits 3 and 3 with the stored stop signal and also send the stop signal to an original power source turning-off means 7 to turn off the original power source of the automatic machine. In this case, storage FFs 12 of the means 12 and 12' are powered on by a backup power source Vm. |
