| 摘要 |
In order to drive additional devices of an automatic door system in synchronism with the movement of the door but without any additional high-power sensor switch, an operating winding of a relay is provided in a control circuit for the door drive motor, the relay contacts being moved by a control signal, which is emitted in the control circuit for the door drive motor, for controlling the on/off switching processes of an electrical power supply for the additional devices (Figure 2). <IMAGE> |
