| 摘要 |
PURPOSE: To recognize an abnormality on the traveling a panel with an external controller and immediately cope with it without providing a signal line. CONSTITUTION: When an abnormality occurs on the traveling any panel 2 during the opening/closing actions of a partition, an internal controller 5 is operated by the signal from a contact sensor 7 provided on the panel 2, and forward/ reverse switching lead wires 13a, 13b and a common lead wire 13c are set to the conductive state by a conductive switch 10. When the first and second conduction detecting means 17, 18 detect the conductive state, a safety means 19 is operated, the excitation to a power feed line 8 is stopped, or a warning device 22 is operated, for example. |
