An encoder failure in an elevator drive system is detected and managed. A velocity of the elevator drive system is provided by an encoder signal (60) and compared with a minimum velocity threshold (62). An encoder fault timer is incremented when the velocity is less than the minimum velocity threshold (64). The elevator drive system is disabled when the encoder fault timer reaches a fault threshold time (66).
Managing an encoder malfunction in an elevator drive system
Verwaltung einer Fehlfunktion eines Codierers in einem Aufzugsantriebssystem
Gestion d'une defaillance du dispositif de codage d'un système de commande d'un ascenseur
26.07.2017
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
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