| 摘要 |
<p>The device comprises a wind (10) for the belt driven by a motor (19), a wheel (17) driven by the moving belt, sensor devices (25) for detecting the rotation of the wheel, and an electronic control arrangement (27) for switching off the drive motor in at least one presettable position of the blind. Further sensor devices (26) are provided for detecting the rotation of the wind or a rotating element (22) connected with it. The device controls the movement of a blind by means of a belt (11), and comprises a wind (10) for the belt driven by a motor (19), a wheel (17) driven by the moving belt, sensor devices (25) for detecting the rotation of the wheel, and an electronic control arrangement (27) for switching off the drive motor in at least one presettable position of the blind. Further sensor devices (26) are provided for detecting the rotation of the wind or a rotating element (22) connected with it. An evaluation arrangement forms relative values of the respective signals of both sensor devices (25, 26) as a current position signal, whereby the drive motor is switched off by means of a switch-off arrangement when reaching a predetermined nominal position.</p> |
