| 摘要 |
PURPOSE:To perform the centralized or individual control in response to the usage by selectively connecting on/off child machines or on/off switches turning on or off the current feed to the lighting load according to the control signal from a parent machine between a power source and the lighting load. CONSTITUTION:The control signal is outputted to signal terminals 3 via the timer or switch of a main operation panel 1. Each terminal 3 with the preset address detects its own address content and outputs the dim control signal according to the control signal. Discharge lamp lighting fixtures 7 connected to the corresponding channel control the electric power from a commercial AC power source 5 according to the dim control signal or control the output of an inverter, and the fixtures 7 are lit. The fixtures 7 in the zone A and the zone B can be optionally turned off by an on/off switch 20, and the fixtures 7 in the zones C-G can be turned off by the centralized control with an on/off terminal 4. The fixtures 7 in the zone H can be optionally turned off by an auxiliary on/off switch 21 in addition to the centralized control. |
