| 摘要 |
PURPOSE:To confirm the intension of an operator and reduce the risks of the erroneous cut-off of a power supply by a method wherein a message asking whether the power supply can be cut off or not is shown on a display before the power supply is cut off. CONSTITUTION:A first power supply cut-off pattern and asecond power supply cut-off pattern are provided. The cut off pattern is selected, for instance, in accordance with the length of the ON period of the output of a power supply control signal switch 23. If, for instance, the second pattern power supply cut-off instruction is selected by a period judging part 26, an operator is informed of the reception of the second pattern power cut-off instruction by a buzzer 30. A control judging part 27 supplies a processing command for the second pattern power supply cut-off to a power supply processing part 15. The power supply processing part 15 shows a final confirmation message asking whether the second pattern power supply cut-off may be implemented or not on a display 13 for a certain period. With this constitution, the intention of the operator can be confirmed and the risks of the erroneous cut-off of the power supply can be reduced. |
