品牌:GE/通用电气
起订:1件
供应:100件
发货:3天内
信息标签:IC693CPU360,供应,电子、电工,工控系统及装备
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IC693CPU360PLC过程控制常见故障分析及维护
为了延长PLC控制系统的寿命,在系统设计和生产使用中要对该系统的设备消耗、元器件设备故障发生点有较明白的估计,也就是说,要知道整个系统哪些部件**容易出故障,以便采取措施。现以我厂特种水泥1号线的PLC过程控制系统为例,对PLC过程控制系统故障分布规律进行分析,希望能对PLC过程控制系统的系统设计和U常维护有所帮助。
IC693CPU360★ 联系人:卢军
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注:如是下班时间请发送电子邮件,24小时之内会给你一个满意的答复,谢谢! 1.系统故障的概念
系统故障一般指整个生产控制系统失效的总和,它又可分为PLC故障和现场生产控制设备故障两部分。PLC系统包括中央处理器、主机箱、扩展机箱、I/O模块及相关的网络和外部设备。现场生产控制设备包括I/O端口和现场控制检测设备,如继电器、接触器、阀门、电动机等。
2.系统的故障统计及分析处理
(1)我厂特种水泥1号线过程控制系统简介
2000年该系统改造时采用日本二菱公司的A2系列PIC为核心组成的PLC过程控制系统。
该系统有2个集中控制室:窑尾控制室和窑头控制室,其中窑头控制室为主站;2个现场工作站:窑尾生料自动配料工作站和窑尾成球盘自动加水成球工作站;2个电视监控系统:预热器进口下料监控和窑头电视看火。现场工作站是独立的微机自动控制系统,它与主站只进行模拟量的通讯和开关量的联锁。主站与从站间采用帧同步全双工通讯方式:
(2)系统
故障数据的统计
经统计,系统故障共计126次,其中PLC的故障比例约为4.7%,现场部分故障比例约为95.3%,:对照其他PLC过程控制系统的故障数据,并考虑该系统运行时间不是很长,该比例比较接近一般PLC过程控制系统的故障分布规律,有一定的普遍性。一般来讲PIC部分的故障比例约为5%,现场控制设备的故障比例约为95%。
(3)系统故障分析及处理YASKAWA SERVOPACK DRIVER SGDM-02AD WORKING
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