INDRAMAT DKC02.1-040-7-FW

描述

INDRAMAT DKC02.1-040-7-FW

PLC主机系统最容易发生故障的地方一般在电源系统和通讯网络系统，电源在连续工作、散热中，电压和电流的波动冲击是不可避免的。通讯及网络受外部干扰的可能性大，外部环境是造成通讯外部设备故障的最大因素之一。系统总线的损坏主要由于现在PLC多为插件结构，长期使用插拔模块会造成局部印刷板或底板、接插件接口等处的总线损坏，在空气温度变化、湿度变化的影响下，总线的塑料老化、印刷线路的老化、接触点的氧化等都是系统总线损耗的原因。所以在系统设计和处理系统故障的时候要考虑到空气、尘埃、紫外线等因素对设备的破坏。目前PLC的主存储器大多采用可擦写ROM，其使用寿命除了主要与制作工艺相关外，还和底板的供电、CPU模块工艺水平有关。而PLC的中央处理器目前都采用高性能的处理芯片，故障率已经大大下降。对于PLC主机系统的故障的预防及处理主要是提高集中控制室的管理水平，加装降温措施，定期除尘，使PLC的外部环境符合其安装运行要求；同时在系统维修时，严格按照操作规程进行操作，谨防人为的对主机系统造成损害。PLC最大的薄弱环节在I／O端口。PLC的技术优势在于其I／O端口，在主机系统的技术水平相差无几的情况下，I／O模块是体现PLC性能的关键部件，因此它也是PLC损坏中的突出环节。要减少I／O模块的故障就要减少外部各种干扰对其影响，首先要按照其使用的要求进行使用，不可随意减少其外部保护设备，其次分析主要的干扰因素，对主要干扰源要进行隔离或处理。

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主营DCS系统配件
机器人系统配件
大型伺服系统配件
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