8312 冗余電源220V

8312 冗余電源220V【品質(zhì)超群廈門(mén)莫格電氣自動(dòng)化，黃工 咨詢(xún) 手機(jī) 咨詢(xún) 】本公司所有產(chǎn)品都經(jīng)過(guò)專(zhuān)業(yè)嚴(yán)格檢測(cè)，歡迎詢(xún)價(jià)，采購(gòu)。只要您有
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8312 冗余電源220V

8312 冗余電源220V

除塵室PLC控制 在制藥、水廠等一些對(duì)除塵要求比較嚴(yán)格的車(chē)間，人、物進(jìn)入這些場(chǎng)合首先需要進(jìn)行除塵處理，為了保證除塵操作的嚴(yán)格進(jìn)行，避免人為因素對(duì)除塵要求的影響，可以用PLC對(duì)除塵室的門(mén)進(jìn)行有效控制。下面將介紹某無(wú)塵車(chē)間進(jìn)門(mén)時(shí)對(duì)人或物進(jìn)行除塵的過(guò)程。 1. 控制要求    人或物進(jìn)入無(wú)污染、無(wú)塵車(chē)間前，首先在除塵室嚴(yán)格進(jìn)行時(shí)間的除塵才能進(jìn)入車(chē)間，否則門(mén)打不開(kāi)，進(jìn)入不了車(chē)間。除塵室的結(jié)構(gòu)如圖7-37所示。圖中*道門(mén)處設(shè)有兩個(gè)傳感器：開(kāi)門(mén)傳感器和關(guān)門(mén)傳感器；除塵室內(nèi)有兩臺(tái)風(fēng)機(jī)，用來(lái)除塵；第二道門(mén)上裝有電磁鎖和開(kāi)門(mén)傳感器，電磁鎖在系統(tǒng)控制下自動(dòng)鎖上或打開(kāi)。進(jìn)入室內(nèi)需要除塵，出來(lái)時(shí)不需除塵。 具體控制要求如下：  進(jìn)入車(chē)間時(shí)必須先打開(kāi)*道門(mén)進(jìn)入除塵室，進(jìn)行除塵。當(dāng)*道門(mén)打開(kāi)時(shí)，開(kāi)門(mén)傳感器動(dòng)作，*道門(mén)關(guān)上時(shí)關(guān)門(mén)傳感器動(dòng)作，*道門(mén)關(guān)上后，風(fēng)機(jī)開(kāi)始吹風(fēng)，電磁鎖把第二道門(mén)鎖上并延時(shí)20s后，風(fēng)機(jī)自動(dòng)停止，電磁鎖自動(dòng)打開(kāi)，此時(shí)可打開(kāi)第二道門(mén)進(jìn)入室內(nèi)。第二道門(mén)打開(kāi)時(shí)相應(yīng)的開(kāi)門(mén)傳感器動(dòng)作。人從室內(nèi)出來(lái)時(shí)，第二道門(mén)的開(kāi)門(mén)傳感器先動(dòng)作，*道門(mén)的開(kāi)門(mén)傳感器才動(dòng)作，關(guān)門(mén)傳感器與進(jìn)入時(shí)動(dòng)作相同，出來(lái)時(shí)不需除塵，所以風(fēng)機(jī)、電磁鎖均不動(dòng)作。 2. I/O分配 輸入                                     輸出 *道門(mén)的開(kāi)門(mén)傳感器 I0.0              風(fēng)機(jī)1     Q0.0 *道門(mén)的關(guān)門(mén)傳感器 I0.1              風(fēng)機(jī)2     Q0.1                                                                      第二道門(mén)的開(kāi)門(mén)傳感器 I0.2              電磁鎖    Q0.2  3. 程序設(shè)計(jì) 除塵室的控制系統(tǒng)梯形圖程序如圖7-38所示。  4. 程序的調(diào)試和運(yùn)行 輸入程序編譯無(wú)誤后，按除塵室的工藝要求調(diào)試程序，并記錄結(jié)果。  水塔水位的模擬控制實(shí)訓(xùn) 用PLC構(gòu)成水塔水位控制系統(tǒng),如圖7-39所示。在模擬控制中，用按鈕SB來(lái)模擬液位傳感器，用L1、L2指示燈來(lái)模擬抽水電動(dòng)機(jī)。 1. 控制要求 按下SB4，水池需要進(jìn)水，燈L2亮；www.plcs。。ｃｎ直到按下SB3，水池水位到位，燈L2滅；按SB2，表示水塔水位低需進(jìn)水，燈L1亮，進(jìn)行抽水；直到按下SB1，水塔水位到位，燈L1滅，過(guò)2秒后，水塔放完水后重復(fù)上述過(guò)程即可。 2. I/O分配                               輸入                        輸出 SB1：I0.1                   L1：Q0.1     SB2：I0.2                   L2：Q0.2    SB3：I0.3 SB4：I0.4 3. 程序設(shè)計(jì)

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  【   黃工】

  【品質(zhì)超群廈門(mén)莫格電氣自動(dòng)化，    咨詢(xún) 】   

  【工控專(zhuān)家廈門(mén)莫格電氣自動(dòng)化，    手機(jī)  】

  【工控專(zhuān)家廈門(mén)莫格電氣自動(dòng)化，咨詢(xún)   】

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