Patent ID: 11945691
Assignee: INVENTIO AG
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 8:
9. A monitoring arrangement for monitoring an integrity status of a suspension member arrangement of an elevator, the suspension member arrangement including at least a first suspension member and a second suspension member, each of the suspension members having electrically conductive cords, the monitoring arrangement comprising:
an alternating voltage generator arrangement generating a first alternating voltage and a second alternating voltage being phase shifted by 180° with respect to each other;
a plurality of input connectors and output connectors, each of the connectors establishing an electrical connection to the cords in an associated one of the suspension members;
a voltage analyzer arrangement analyzing a neutral point voltage resulting from applying the first alternating voltage to the cords of one of the first and second suspension members and applying the second alternating voltage to another of the first and second suspension members, transmission of the first and second alternating voltages through the cords and superimposing the transmitted first and second alternating voltages;
wherein a first of the input connectors and a second of the input connectors are electrically connected to the alternating voltage generator arrangement and a first of the output connectors and a second of the output connectors are electrically connected to the voltage analyzer arrangement;
wherein the first input connector and the first output connector establish a first circuitry in which the first alternating voltage is applied via the first input connector to a first end region of at least some of the cords in the first suspension member and, after transmission of the first alternating voltage through all of the cords of the first suspension member, the first alternating voltage is transmitted via the first output connector to the voltage analyzer arrangement; and
wherein the second input connector and the second output connector establish a second circuitry in which the second alternating voltage is applied via the second input connector to a first end region of at least some of the cords in the second suspension member and, after transmission of the second alternating voltage through all of the cords of the second suspension member, the second alternating voltage is transmitted via the second output connector to the voltage analyzer arrangement.