| 摘要 |
PURPOSE:To ensure the check of information notifying occurrence of abnormality, by providing a display selecting switch having indicator lamps corresponding to the number of control information which can be objects of display, and switchingly outputting one input signal corresponding to the switching operation of a switching circuit so as to numerically display the signal on an indicator. CONSTITUTION:In the case that a display selecting switch 18b is switchingly operated in order to check a driving signal B from a control circuit 1, a switching signal of the display selecting switch 18b is given to a switching command circuit 20, and a data code corresponding to the switching signal of the display selecting switch 18b is outputted into a switching circuit 12. From the switching circuit 12 which receives this data code, an input signal B thereof is outputted so as to numerically display the current value of the driving signal B on an indicator 16. At the same time, the data code from the switching circuit 20 is given to a circuit 22, and then the circuit 22 lights an indicating lamp which is provided on the display selecting switch 18b already performing the switching operation, thereby instantly finding the valve displayed on the indicator 16 to be the driving signal B.
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