| 摘要 |
FIELD: electricity. ^ SUBSTANCE: control facility (10) designed to move mobile elements, such as rolled curtains and similar devices comprises a reduction gear (11) and a limit switch (12). The limit switch (12) has two detection sensors (13, 14), every of which complies with one of two limit positions of movement, which must be detected and which are linked to sliders (21, 22), connected to a threaded rod (20). For one of the sensors there is a deactivating facility (23) to deactivate detection of the appropriate slider for the sensor and a stop device (24) to stop displacement of the appropriate slider towards the sensor in a point of normal detection of the slider by the sensor. ^ EFFECT: invention provides for automatic completion of a procedure to set a switching point of a limit switch. ^ 20 cl, 4 dwg |
