| 摘要 |
PURPOSE:To make unnecessary set changing work of a timer by outputting open signals of the timer, opening and operating an electric motor only in the case a signal change-over means outputs manned signals, and shutting and operating the electric motor in the case where the timer outputs closing signals or in the case where the signal change-over means outputs unattended signals. CONSTITUTION:When (a) contact of a change-over switch 6 turned on or off by a security company based on whether there is a person in a building and (a) contact of a 24 hour timer T24 are turned on, a signal output circuit 5 outputs an open command pulse for a specific time based on operation of a relay TP1 to open and operate the electric motor, and a shutter curtain is opened. While, when (b) contact of the change-over switch 6 is turned on or when the (b) contact of the 24 hour timer T24is turned on, the signal output circuit 5 outputs a closing command pulse for a specific time based on the operation of a relay TP2 to close and operate the electric motor, and the shutter curtain is shutted. According to the constitution, opening and shutting of a motor-driven opening-and-shutting body can be completely automated. |
