| 摘要 |
PURPOSE:To ensure an early detection of the fault for the multiplied device by using the multiplying part with switching with every operation of the device. CONSTITUTION:Circuit part 13 and 14 are provided featuring the same constitution which contains reception part 11 and reception output part 12, and the input terminals of circuit part 13 and 14 are connected to the central device and the like via switching part 15. The switching signal generating part 16 detects the start signals sent from the central device and then delivers the switching signals to switch part 15. Thus, part 15 is switched with every arrival of the start signal, and part 13 and 14 operates alternately. As a result, the unused state for a long time is avoided for one circuit (auxiliary machine), accordinly ensuring a quick detection of the fault which occurs either in part 13 and 14. |
