6FC5410-0AY01-0AA0
6FC5410-0AY01-0AA0
◆品牌熱點(diǎn)\AB\ABB\施耐德\GE\西門子\發(fā)那科\FOXBORO\西屋
愛(ài)價(jià)格好++++++++貿(mào)+++++++++++++*降價(jià)
愛(ài)貨期短+++++++++++++++++++渠道好
愛(ài)產(chǎn)品好+++++++++易++++++++++*
愛(ài)數(shù)量多+++++++++++++++++++++大量庫(kù)存停產(chǎn)備件
愛(ài)售后服務(wù)好+++++++商++++++++++++質(zhì)量保證
干擾造成的故障:對(duì)于干擾主要是接地問(wèn)題,備用電源的切換和大功率的無(wú)線通信設(shè)備如手機(jī)、對(duì)講機(jī)等。另外還有DCS系統(tǒng)的干擾信號(hào)可能由本身造成的。那么對(duì)于DCS系統(tǒng)的接地問(wèn)題越來(lái)越引起人們的重視,尤其在電力行業(yè),大功率電器設(shè)備的啟動(dòng)和停止都會(huì)干擾DCS的控制信號(hào),造成不必要的故障。為了防止干擾信號(hào)串入系統(tǒng),嚴(yán)格執(zhí)行屏蔽和接地要求和方式,信號(hào)線遠(yuǎn)離干擾源,同時(shí)采取防電源波動(dòng)措施。主/從過(guò)程處理機(jī)之間在機(jī)組運(yùn)行時(shí),除非萬(wàn)不得以,盡量不要人為切換,已防產(chǎn)生干擾,如必須切換,應(yīng)采取措施,先將控制切手動(dòng),以免對(duì)機(jī)組運(yùn)行工況產(chǎn)生影響。對(duì)電子設(shè)備問(wèn)、工程師站等重點(diǎn)部位,應(yīng)禁止使用大功率無(wú)線電通信設(shè)備。[1]
相關(guān)控制系統(tǒng)
總述
計(jì)算機(jī)和網(wǎng)絡(luò)技術(shù)的飛速發(fā)展,引起了自動(dòng)化控制系統(tǒng)結(jié)構(gòu)的變革,一種世界上新型的控制系統(tǒng)即現(xiàn)場(chǎng)總線控制系統(tǒng)(Fieldbus Control System,F(xiàn)CS)在上世紀(jì)九十年代走向?qū)嵱没?,并正以迅猛的?shì)頭快速發(fā)展。現(xiàn)場(chǎng)總線控制系統(tǒng)是目前自動(dòng)化技術(shù)中的一個(gè)熱點(diǎn),正越來(lái)越受到國(guó)內(nèi)外自動(dòng)化設(shè)備制造商與用戶的關(guān)注。現(xiàn)場(chǎng)總線控制系統(tǒng)的出現(xiàn),將給自動(dòng)化領(lǐng)域在過(guò)程控制系統(tǒng)上帶來(lái)又一次革命,其深度和廣度將超過(guò)歷史的任何一次,從而開(kāi)創(chuàng)自動(dòng)化。
CACR-SR05AC1ER
CACR-SR05AC1ES
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CACR-SR05BC1CS-Y159
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