| 摘要 |
PURPOSE:To easily perform an operation checking whether a load is controlled normally, and to facilitate a construction and a maintenance, by arranging a central control unit, a control terminal unit, an a load control relay in a distribution board. CONSTITUTION:Within a distribution board 6, a central control unit 4, a control terminal unit 3 which controls the load by controlling a remote control relay Ry, a control terminal unit 3' building in a control relay which controls the load, an operation terminal unit 2 which builds in a transformer T to supply the driving power source of the remote control relay Ry, and derives a signal line 7 from the distribution board 6 to the outside, and provides a pattern switch 203 and a selector switch 201, etc., at the signal line 7, and a supervisory terminal unit 5, are connected. In such a way, it is possible to obtain a device by which the construction and the operation checking can be easily performed. |
