描述

INDRAMAT DKC02.1-040-7-FW

PLC主機系統(tǒng)最容易發(fā)生故障的地方一般在電源系統(tǒng)和通訊網(wǎng)絡(luò)系統(tǒng)，電源在連續(xù)工作、散熱中，電壓和電流的波動沖擊是不可避免的。通訊及網(wǎng)絡(luò)受外部干擾的可能性大，外部環(huán)境是造成通訊外部設(shè)備故障的最大因素之一。系統(tǒng)總線的損壞主要由于現(xiàn)在PLC多為插件結(jié)構(gòu)，長期使用插拔模塊會造成局部印刷板或底板、接插件接口等處的總線損壞，在空氣溫度變化、濕度變化的影響下，總線的塑料老化、印刷線路的老化、接觸點的氧化等都是系統(tǒng)總線損耗的原因。所以在系統(tǒng)設(shè)計和處理系統(tǒng)故障的時候要考慮到空氣、塵埃、紫外線等因素對設(shè)備的破壞。目前PLC的主存儲器大多采用可擦寫ROM，其使用壽命除了主要與制作工藝相關(guān)外，還和底板的供電、CPU模塊工藝水平有關(guān)。而PLC的中央處理器目前都采用高性能的處理芯片，故障率已經(jīng)大大下降。對于PLC主機系統(tǒng)的故障的預(yù)防及處理主要是提高集中控制室的管理水平，加裝降溫措施，定期除塵，使PLC的外部環(huán)境符合其安裝運行要求；同時在系統(tǒng)維修時，嚴格按照操作規(guī)程進行操作，謹防人為的對主機系統(tǒng)造成損害。PLC最大的薄弱環(huán)節(jié)在I／O端口。PLC的技術(shù)優(yōu)勢在于其I／O端口，在主機系統(tǒng)的技術(shù)水平相差無幾的情況下，I／O模塊是體現(xiàn)PLC性能的關(guān)鍵部件，因此它也是PLC損壞中的突出環(huán)節(jié)。要減少I／O模塊的故障就要減少外部各種干擾對其影響，首先要按照其使用的要求進行使用，不可隨意減少其外部保護設(shè)備，其次分析主要的干擾因素，對主要干擾源要進行隔離或處理。

產(chǎn)品承諾：
保?證?全新原裝進口,
保?證?安全準時發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢價格，大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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