| 摘要 |
PURPOSE:To improve operability by turning on a lighting monitor if at least one of light sources of a control slave unit to be controlled is turned on when a monitor slave unit is set to the forgotten-off control mode, then turning off the light source which is kept on. CONSTITUTION:A main operation panel 1 serving as a master unit has a setting means of P-ROM setting the normal mode and the forgotten-off control mode, and control terminals 5 serving as control slave units connected with illumination apparatuses 4 serving as light sources, a switch 6 with the function as a monitor slave unit, and a daylight sensor terminal 8 connected with a daylight sensor 7 are connected to the main operation panel 1 via a transmission line 3. The monitor slave unit 6 controls the light sources 4 of the control terminals 5 controlled in the normal mode when the normal mode is set, it turns on a lighting monitor when the forgotten-off control mode is set and at least one of the light sources of the control terminals is lighted, and it turns off the light source which is kept on. |
