According to one embodiment, a method for monitoring a door rail of an elevator system is provided which comprises operating the elevator system to at least partially open a door, and to close the door at a slow speed, detecting that a door switch is closed and sending a signal when the time it takes for the door switch to close is over a predetermined value. The method for monitoring may be periodically commanded by an elevator control system.
DOOR RAIL MONITORING
2019-07-11
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
DOOR RAIL CLEANING DEVICE, DOOR RAIL CLEANING METHOD, AND ELEVATOR
European Patent Office | 2020
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