| 摘要 |
PURPOSE:To achieve approximately normal initial door operation, by selecting a signal corresponding to door stroke from a plurality of decelerating point signals set in a decelerating point signal setting means when the door is operated initially. CONSTITUTION:Upon the detection of existence of a person in front of a door through a detector, a logic section 16 provides an open speed signal set in an opening setter 18 to an operating section 20. When a door position signal fed from a door position calculating section 26 matches with a deceleration point signal, a low speed signal is fed to the operating section 20. When the door moves to a stopping position, a stop signal is fed to the operating section 20. During initial door operation when a power source is thrown in, for example, a door selecting section 28 selects a decelerating point signal corresponding to moving distance of the door from a plurality of decelerating point signals. Consequently, limit switch or magnet can be eliminated. |
