| 摘要 |
PURPOSE:To obtain a device which controls the inversion of an output through the operation of one light illumination type push button and does not change in output state even when the push button is pressed in a power-off state, by performing the inversion control under which a keep relay is energized and reset repeatedly. CONSTITUTION:One switch, two relays, and one keep relay are provided for the inversion control where the keep relay is operated and reset repeatedly every time when the switch is turned on or off while the keep relay is reset. For example, when the switch 1 is turned on while the keep relay 3 is reset, a relay 6 is energized to put the keep relay 3 in operation. When the switch 1 is operated at said point of time, the relay 6 is turned off and when the switch 1 is turned on again successively, a relay 7 operates to reset the keep relay 3. Then, lamps 4 and 5 are turned on the contact of the keep relay 3 to display an output state. |
