| 摘要 |
PURPOSE:To speed up operation of an opening and shutting controller of a door by providing a circuit performing the decision of an opening and shutting direction, the calculation of an opening and shutting speed or the present position, the setting of a limited speed, etc., to a door opening and shutting device driven by a linear motor, and controlling speed speedily on the way to the opening and shutting of the door and slowly in the approaching end. CONSTITUTION:Based on signals from a magnetic detection sensor consisting of a plurality of movable coils, the decision of an opening and shutting direction of a door is made by a device 100, the calculation of an opening and shutting speed of the door is performed by a device 101 and the calculation of the present position of the door is performed by a device 102 in a controller of an opening and shutting device of the door. After that, based on the calculated value, a limited speed is set by a device 106, at the same time, the value is stored by a cevice 105, speed comparison is made by a device 103, and a speed of the door is braked by a device 104. Even if a mode change-over switch is operated to switch an opening and shutting of the door from automatic operation to manual operation, speed is increased on the way to the opening and shutting of the door, speed is decreased in the case it approaches the upper end or the lower end, sp that the door is not made to collide with the end. According to the constitution, an opening and shutting speed of the door is accelerated, and operation can be lightly made. |
