| 摘要 |
<p>Controlled electromotive drive system for doors or such like building closures, which can be installed for the purpose of as robust a mounting as possible and without the need to carry out precision adjustment work, for which purpose the door is equipped with a control device which essentially comprises a position indicator device, a memory device and a reference-point indicator device, which indicator device is arranged between the door-leaf end positions and outside holding positions, provided if appropriate, or defines a corresponding door-leaf reference-point position, and which synchronises the position indicator device during each passage, in such a way that the desired distance of the door-leaf movement to be passed through from the reference-point position to the particular position desired is determined or checked according to a memory statement corresponding to the selected position. The system therefore monitors itself continuously and is capable, even after a power failure and, if appropriate, a manually actuated movement of the door leaf, of synchronising itself at the moment when the drive motor is next switched on. <IMAGE></p> |
