VAU01.1U-024-240-NN
VAU01.1U-024-240-NN
VAU01.1U-024-240-NN
鴻飛達(dá)自動(dòng)化科技有限公司
是一家專業(yè)從事全球知名品牌（DCS系統(tǒng)）（機(jī)器人系統(tǒng)）（大型伺服控制系統(tǒng)）模塊 備件銷售,公司產(chǎn)品內(nèi)容為分布式控制系統(tǒng)(DCS) ,可編程序控制器(PLC)，工業(yè)控制通訊轉(zhuǎn)換器(Anybus) ，人機(jī)界面，現(xiàn)已成一家全球性的工業(yè)自動(dòng)化備件及零部件的銷售企業(yè)?。?！應(yīng)用于數(shù)控機(jī)械 冶金、石油天然氣、石油化工、化工、造紙印刷等。
暢銷品牌包括：
AB、ABB、施耐德、西門子、力士樂(lè)、安川、發(fā)那科、SEW、霍尼韋爾、GE發(fā)那科等
PLC系統(tǒng)控制的正常供電電 源均由電網(wǎng)供電。由于電網(wǎng)覆蓋范圍廣，它將受到所有空間電磁干擾，空間的輻射電磁場(chǎng)（EMI）主要是由電力網(wǎng)絡(luò)、電氣設(shè)備的暫態(tài)過(guò)程、雷電、無(wú)線電廣播、 電視、雷達(dá)等產(chǎn)生的，通常稱為輻射干擾，若PLC系統(tǒng)置于所射頻場(chǎng)內(nèi)，就會(huì)收到輻射干擾，而在線路上感應(yīng)電壓。尤其是電網(wǎng)內(nèi)部的變化，刀開(kāi)關(guān)操作浪涌、大 型電力設(shè)備起停、交直流傳動(dòng)裝置引起的諧波、電網(wǎng)短路暫態(tài)沖擊等，都通過(guò)輸電線路傳到電源原邊。可能造成程序錯(cuò)誤或運(yùn)算錯(cuò)誤，從而產(chǎn)生誤輸入并引起誤輸 出，這將會(huì)造成設(shè)備的失控和誤動(dòng)作，從而不能保證PLC的正常運(yùn)行。
1.2信號(hào)線引入的干擾。
與PLC控制系統(tǒng)連接的各類信號(hào)傳輸線，除了傳輸有效的各類信號(hào)之外，總會(huì)有外部干擾信號(hào)侵入。此干擾主要有兩種途徑：一是通過(guò)變送器或共用信號(hào)儀表的供電電源串入的電網(wǎng)干擾；二是信號(hào)線受空間電磁輻射感應(yīng)的干擾，由此引起系統(tǒng)故障的情況也很多。
1.3接地系統(tǒng)的干擾。
接地是提高電子設(shè)備電磁兼容性（EMC）的有效手段之一。正確的接地，既能抑制電磁干擾的影響，又能抑制設(shè)備向外發(fā)出干擾；而錯(cuò)誤的接地，反而會(huì)引入嚴(yán)重的干擾信號(hào)，使PLC系統(tǒng)將無(wú)法正常工作。
1.4變頻器干擾。
一是變頻器啟動(dòng)及運(yùn)行過(guò)程中產(chǎn)生諧波對(duì)電網(wǎng)產(chǎn)生傳導(dǎo)干擾，引起電網(wǎng)電壓畸變，影響電網(wǎng)的供電質(zhì)量；二是變頻器的輸出會(huì)產(chǎn)生較強(qiáng)的電磁輻射干擾，影響周邊設(shè)備的正常工作。
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【聯(lián)系人】：唐先生
【電話】：0591-88075793
【手機(jī)】：15980703110
【QQ】：2851617317
【傳真】：0591-88263940
【公司地址】：福州市自貿(mào)區(qū)江濱東大道68-1號(hào)藍(lán)波灣17層
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