The invention relates to an elevator comprising - an elevator motor (12) - a motor drive (14) for the elevator motor (12) having a frequency converter comprising a rectifier bridge (16), an inverter bridge (18) and a DC link (20) in between, which frequency converter is controlled via a controller (34), the rectifier bridge (16) being connected to AC mains (42) via three feed lines (38a-c) comprising chokes (44a,b), and the rectifier bridge (16) being realised via controllable semiconductor switches (17a-f), - a contactor (40) being located between the feed lines (38a-c) and AC mains (42), - a backup power supply (48) at least for emergency drive operation, - an emergency control (34a) is associated with the motor drive (14), which emergency control (34a) is configured to perform an automatic emergency drive. According to the invention - the emergency control (34a) is connected to a manual drive circuit (78) having a manual drive switch (82) for a manual rescue drive, and - the elevator comprises a motion sensor (35) connected to the emergency control (34a), whereby the emergency control is configured to activate a brake (32a, 32b) and/or gripping device of the elevator in case the car speed during a manual rescue drive exceeds a predetermined threshold value.
ELEVATOR AUTOMATIC AND MANUAL RESCUE OPERATION
AUTOMATISCHER UND MANUELLER RETTUNGSBETRIEB FÜR EIN AUFZUG
OPERATION DE SAUVETAGE AUTOMATIQUE ET MANUEL D'ASCENSEUR
2020-07-15
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
RESCUE OPERATION DEVICE FOR ELEVATOR AND RESCUE OPERATION METHOD FOR ELEVATOR
Europäisches Patentamt | 2015
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