| 摘要 |
PURPOSE:To evade the waste of time during the debugging or the fault check of hardware by using a setting switch which performs the changeover between a contact that turns off a device power supply immediately after a power switch is turned off and a contact that turned off the power supply via the sequence control. CONSTITUTION:A setting switch 13 is added to a power supply circuit 5 containing a power ON/OFF control part 7 which performs a power ON/OFF sequence via the firm control. A normal power OFF sequence is carried out when a power switch 6 is turned on while the switch 13 is kept to OFF. While the supply of power is immediately cut off to a device when the switch 6 is turned off while the switch 13 is kept to OFF. Thus it is possible to avoid the waste of time during which the switch 6 is manually turned off and the supply of power is actually cut off when the hardware is debugged or undergoes the check of its fault. |
