| 摘要 |
PURPOSE: To provide a load interlocking system easy in construction and operated independently without a master device. CONSTITUTION: Each module (M) comprises a switch element 1b turned on when a man in a sensor area is detected by a sensor unit 1b. A lighting load 2 is lightened when a voltage from a power supply E1 is applied. The switch element 1b and a reverse current blocking circuit 3 are inserted between the power supply E1 and the lighting load 2. The reverse current blocking circuit 3 includes each pair of diodes Di1 and Di2 (i=1, 2, 3 and 4), each diode in a pair is connected in series, and a connection terminal 41 is provided between diodes Di1 and Di2 . A plurality of connection terminals 41 to interlock the turn-on and off on the lighting load 2 are connected to each other. When one switch element 1b is turned on by detecting a man in some module (M), the lighting load 2 in the module (M) is lightened, and at the same time other lighting loads 2 in other modules (M) connected to the connection terminal 41 are lightened. |
