| 摘要 |
PURPOSE: A self-diagnosis gas leakage blocking controller and a diagnosis method thereof are provided to easily diagnose and check the position, opening, and locking of a gas leakage breaker. CONSTITUTION: A self-diagnosis gas leakage blocking controller comprises a gas leakage breaker(80), a breaker power supply unit(60), a control unit(40), and a breaker state display(55). The control unit alternately generates an opening signal and a locking signal according to a specific cycle, displays the neutral state of the gas leakage breaker in the breaker state display when both the input opening signal and locking signal are different from set reference voltages, determines the gas leakage breaker is not installed when both the input opening signal and locking signal are equal to the set reference voltages, and determines an opening state when only the input opening signal is equal to the set reference voltage. |
