| 摘要 |
Electrically powered control arrangement, in particular for lifts, elevators and the like, comprising a plurality of monostable sensors (2) adapted to guide a car (3) into alignment with the floors, and at least a bistable sensor (4) adapted to identify the end-of-travel condition of the car (3) at the extreme top and bottom floors and to issue a corresponding signal to a control unit (5) of the car (3); the control arrangement also comprises circuit means (6) adapted to continuously record the signal delivered by the bistable sensor (4) and to keep the last so recorded signal in store even in the case of a power failure, so as to deliver it to the control unit (5) upon restoration of the power supply. <IMAGE> |
