| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a gas original pressure valve from unnecessarily operating when operation of a controller during control program modification work is in a non-safety state. <P>SOLUTION: Gas equipment is provided with a body (=stack) generating at least one of heat and electric power by utilizing supplied raw material gas and a first controller for adjusting electric power supplied to a gas original pressure valve 14. During control program modification of the first controller, the electric power to the gas original pressure valve 14 is shut off by the first controller, thus avoiding a non-safety state such as gas leakage when modifying the control program of the first controller. <P>COPYRIGHT: (C)2012,JPO&INPIT |
