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1. (WO2018123027) REMOTE RECOVERY SYSTEM FOR ELEVATOR FAILURE

Pub. No.:    WO/2018/123027    International Application No.:    PCT/JP2016/089121
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 29 00:59:59 CET 2016
IPC: B66B 5/00
Applicants: MITSUBISHI ELECTRIC BUILDING TECHNO-SERVICE CO.,LTD.
三菱電機ビルテクノサービス株式会社
MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: YAMASAKI, Satoshi
山▲崎▼ 智史
TABATA, Hiroyasu
田畠 広泰
SAKATA, Koji
阪田 恒次
OSAWA, Nanaho
大澤 奈々穂
KOIZUMI, Kenichi
小泉 賢一
Title: REMOTE RECOVERY SYSTEM FOR ELEVATOR FAILURE
Abstract:
An elevator control device (200) transmits, on the basis of a rotor phase (θ) and a current value (Iu, Iv, Iw), a failure signal to a remote recovery device (300) when an abnormality is detected in a drive system device. When the failure signal of the drive system device is received, the remote recovery device (300) executes an emergency operation in the elevator control device (200) for raising and lowering a car (22) using intermittent braking of a brake (401) when the supply of running-power electric power to a rotary electric machine (400) is stopped. The remote recovery device (300) further determines, on the basis of the rotor phase (θ) and the current value (Iu, Iv, Iw) during emergency operation, whether a magnetic pole correction operation can be executed on the rotary electric machine (400). It can thereby be determined in advance whether execution of magnetic pole correction is appropriate when an abnormality of the drive system device is detected.