Safety system for an elevator structure

B - Operations – Transporting – 66 – B

Patent

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Details

B66B 5/00 (2006.01) B66B 13/22 (2006.01)

Patent

CA 2526984

Disclosed is a safety system (10) for an elevator structure, comprising a control unit (11), a bus node (13), a safety element (16), and a bus (12) for enabling communication between the control unit (11) and the bus node (13). The bus node (13) is provided with first circuitry means (14) which impinge the safety element (16) with a first analog signal upon a digital input by the control unit (11). The bus node (13) is also provided with second circuitry means (15) which pick up an analog signal on the safety element (16) and supply digital feedback data to the control unit (11) via the bus (12).

L'invention concerne un système de sécurité (10) destiné à une installation d'ascenseur et comprenant une unité de contrôle (11), un noeud de bus (13), un élément de sécurité (16), ainsi qu'un bus (12) qui permet la communication entre l'unité de contrôle (11) et le noeud de bus (13). Le noeud de bus (13) présente des premiers éléments de circuit (14) qui, lorsque l'unité de contrôle (11) procède à une indication numérique, sollicitent l'élément de sécurité (16) avec un premier signal analogique. Le noeud de bus (13) présente en outre des deuxièmes éléments de circuit (15) qui détectent un signal analogique sur l'élément de sécurité (16) et fournissent par l'intermédiaire du bus (12) une rétro-information numérique à l'unité de contrôle (11).

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