浅谈曳引驱动电梯制动器故障保护功能的电气设计

Brief Discussion on Electrical Design of Fault Protection Function of Elevator Brake

制动器故障保护功能是电梯检规第2号修改单提出的新的功能要求,该功能的增加降低了制动器功能故障引起的风险,不同的制造单位给出了不同的设计解决方案。本文介绍了几种常见的制动器故障保护的电气设计方式,并分析了这些电气设计实现功能的方式以及对标准规范的符合性,进而说明了这些电气设计方式可能存在的遗留风险。最后,基于探讨的内容,文末给出了制动器故障保护功能应达到如下要求。

Brake fault protection function is a new functional requirement put forward by elevator inspection regulation No.2 modification sheet.The increase of this function reduces the risk caused by the brake function failure of traction and forced drive elevator.Different manufacturing companies give different design solutions.This paper introduces several common electrical design methods of brake fault protection,analyzes the implementation of these electrical design methods and the compliance with the standard specification,and then explains the possible legacy risks of these electrical design methods.Finally,based on the content of the discussion,the brake fault protection function should meet the requirements at the end of the paper.