基于PLC的FANUC 0系统数控机床常见故障诊断与排除

摘要

The role of PLC on CNC machine is to complete the sequential control.In the event of the failure,it will seriously affect the production efficiency and extend the downtime.This paper takes the CNC FANUC 0 system for instance,introduces the role of CNC machine tools and the exchange of PLC with external signal,expound the usage of PLC screen operation.On the basis of the usual methods and ideas of PLC fault diagnosis,it also makes case analysis and treatment to CNC FANUC 0 system,and summarizes the announcements of PLC fault diagnosis.%数控机床上的PLC主要完成加工过程中的顺序动作控制,一旦出现故障,会严重影响生产效率,延长停机时间。本文以FANUC 0系统的数控机床为例,介绍了数控机床上PLC的作用以及与外部信号的交换,详细阐述了PLC画面操作与使用的方法,基于PLC故障诊断的常用方法和思路,对FANUC 0系统数控机床常见故障进行了案例分析与处理,并总结了PLC故障诊断的注意事项。