| 摘要 |
PURPOSE:To have automatic stop which requires for an operation manager to turn off a main switch simply by incorporating such a constitution that putoff is generated after a fuel cell system is put in the security stop state upon the main switch being turned off. CONSTITUTION:The power supply circuit of a control part 32 consists of two systems; No.1 system is arranged through a main switch 30 for the load 4 or interlocking therewith, while No.2 system consists of a holding switch circuit including a holder relay 31, which is actuated when the main switch 30 is turned on to continue during the operation. This On state of the holder relay 31 is not disengaged immediately even though the main switch 30 is put off, but disengaged first after the security stop condition of the fuel cell system is made sure. Thereby security problem within the fuel cell system is prevented automatically only by turning off the main switch by the operation manager. |
