| 摘要 |
<p>PROBLEM TO BE SOLVED: To lead an output out even if a fault display is out of order and to eliminate malfunction by connecting the fault display and a fault signal external output in parallel. SOLUTION: A case 1 contains the fault display 2 which displays a fault with a fault signal and the fault signal external output 3 which outputs the fault to the outside with the fault signal. An external plate 5 which has a window hole 4 at its center part is arranged in a front opening of the case 1, a frame plate 6 is erected upright inside the external plate 5, and a reset display plate 7 and a fault display plate 8 are engaged with the frame plate 6 to slide freely in order from the bottom to the top. The reset display plate 7 and fault display plate 8 are to slide freely on the frame plate 6 being bent in each side of the plates 7, 8 to hold the frame plate 6. Then the fault signal is inputted from IN, the fault display 2 and fault signal external output 3 are connected in parallel, and the fault signal while inputted to the fault display 2 is inputted to the fault signal external output 3, so that the fault signal is led out.</p> |
