发明名称 Safety control device for an elevator apparatus and operating method thereof
摘要 An elevator apparatus includes a safety circuit section including a plurality of abnormality detection units, a safety control device, failure detection unit, and circuit changeover unit. The safety control device controls electric power supply to a driving device and a brake device in accordance with a content of an abnormality detected by the abnormality detection units. The failure detection unit detects a failure of the safety control device. When the failure of the safety control device is detected, the circuit changeover unit forms a failure-time circuit in which the electric power supply to the driving device and the brake device is interrupted directly by the abnormality detection unit.
申请公布号 US8430212(B2) 申请公布日期 2013.04.30
申请号 US20080937800 申请日期 2008.06.27
申请人 UEDA TAKAHARU;TAKAHASHI SATORU;MITSUBISHI ELECTRIC CORPORATION 发明人 UEDA TAKAHARU;TAKAHASHI SATORU
分类号 B66B1/34 主分类号 B66B1/34
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