1771-OFE2
检修工艺及技术要求
1、测量电压时,要用数字电压表或精度为1%的万能表测量
2、电源机架,CPU主板都只能在主电源切断时取下
3、在RAM模块从CPU取下或插入CPU之前,要断开PC的电源,这样才能保证数据不混乱
4、在取下RAM模块之前,检查一下模块电池是否正常工作,如果电池故障灯亮时取下模块PAM内容将丢失
5、输入/输出板取下前也应先关掉总电源,但如果生产需要时I/0板也可在可编程控制器运行时取下,但CPU板上的QVZ(超时)灯亮
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郑娟萍
厦门仲鑫航自动化设备有限公司   
6、拨插模板时,要格外小心,轻拿轻放,并运离产生静电的物品
7、更换元件不得带电操作
8、检修后模板安装一定要安插到位
通过以上五大点的描述,相信大家对PLC的维修与保养有了一定的认识。
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