功能安全原理与技术实现解析

Brief Analysis on the Design of Safety Related System

自动化设备的控制系统中除了能满足应用的智能控制以外安全控制至关重要,安全相关系统可以最大限度地防止这些高度集成和智能设备的不安全状态,防止恶性事故的发生或在事故发生后尽可能地减少损失,保护装置及最重要的人身安全。本文阐述了安全相关系统的背景,根据经验总结了一些关于自动化控制中安全相关系统的设计原则,以及安全特殊器件、安全回路、安全联锁机制、安全转矩关断功能等几种具体的设计方法。

Automation equipment control system except can satisfy the application of intelligent control in the safety control is crucial,safety related system can maximize prevent unsafe state of these highly integrated and intelligent equipment,prevent vicious accidents or reducing losses as much as possible after the accident,personal safety protection device and the most important.This paper describes the background of safety related system,and summarizes some design principles of safety related system in automatic control,as well as several specific design methods such as safety special device,safety loop,safety interlock mechanism and safety torque turn-off function.