In an operation-mode switching system for an elevator, a maintenance-operation mode selector switch for switching an operation mode to a maintenance-operation mode is provided in a hoistway. A landing-door opening detection switch is provided to a landing door independently of a landing-door switch for detecting opening and closing of the landing door. The landing-door opening detection switch is turned OFF when the landing door is intentionally opened. A relay for inhibiting normal operation during maintenance is demagnetized when the landing-door opening detection switch is turned OFF to inhibit start of a car. A maintenance operation of the car is enabled by switching the operation mode to the maintenance-operation mode through the maintenance-operation mode selector switch after the start of the car is inhibited by the relay for inhibiting normal operation during maintenance.
ELEVATOR OPERATION MODE SWITCHING SYSTEM
SYSTEM ZUR UMSCHALTUNG EINES AUFZUGSBETRIEBSMODUS
SYSTÈME DE COMMUTATION DE MODE DE FONCTIONNEMENT D'ASCENSEUR
2019-11-20
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
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