| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a lighting control system allowing a change of a lighting state according to a use place even if a failure of a master machine, or disconnection or a short circuit of a transmission line occurs. SOLUTION: In a dimming signal terminal 4 of this lighting control system, a control part 17 executes control for outputting a dimming signal of a dimming output on the basis of setting of a switch 14 when a signal from a master machine is not detected in a transmission signal detection part 16 due to a failure of the master machine, or disconnection or a short circuit of a transmission line. For example, the control part 17 outputs 10 V in the case of lighting in the setting of the switch 14, 0 V in the case of extinction, and an untouched lighting level (0-10 V) in the case of the status quo.</p> |
