论文首先对电梯控制系统的组成以及运行原理进行了详细的分析，通过故障模式与后果分析得出了电梯系统故障的特点。

A detailed analysis of the elevator components and its operation principle is first presented. Elevator fault characteristics are concluded according to analysis of fault modes and fault consequences.

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推荐的安全分析方法有，如果…怎么样法、检查表法、危险与可操作分析法(HAZOP)、故障模式及后果分析(FMEA)或故障树分析法等。

The methodologies of WhatIf, Checklist, Hazard and Operability Study (HAZOP), Failure Mode and Effects Analysis (FMEA) or Fault Tree Analysis (FTA) are recommended.

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