1746-OBP8產(chǎn)品說明
1746-OBP8
廈門卡庫電氣有限公司座落于廈門湖里區(qū),專業(yè)從事自動化產(chǎn)品及自動化設(shè)備研發(fā)及銷售的企業(yè),對各大自 動化產(chǎn)品品牌有著強(qiáng)大的優(yōu)勢,并且對優(yōu)勢產(chǎn)品有著大量的備貨。公司經(jīng)銷產(chǎn)品廣泛應(yīng)用于 冶金、石油天然 氣、玻璃制造業(yè)、鋁業(yè)、石油化工、煤礦、造紙印刷、紡織印染、機(jī)械、電子制造、汽車制造、煙草、塑膠 機(jī)械、電力、水利、水處理/環(huán)保、市政工程、鍋爐供暖、能源、輸配電等等。
聯(lián)系人:嚴(yán)小姐
T:0592-5709823
P:18030229052
F:0592-5709828
紙機(jī)控制系統(tǒng)結(jié)構(gòu) 我們的選型原則是:優(yōu)化設(shè)計(jì),程序通用化,界面美觀化,使整個(gè)控制系統(tǒng)穩(wěn)定性好、可靠性高、魯棒性強(qiáng)。 紙機(jī)控制系統(tǒng)結(jié)構(gòu)圖如圖2所示。該控制系統(tǒng)采用交流變頻分部傳動控制,三級控制方式。級為驅(qū)動級,變頻器采用AB公司系列變頻器,由閉環(huán)控制編碼器反饋板,組成閉環(huán)控制系統(tǒng)。第二級為PLC控制系統(tǒng),采用西門子S7-300 PLC , S7-300與變頻器組成Modbus總線控制網(wǎng)絡(luò),通訊速率可達(dá)19.2Kbit/s,并完成自動卷取及輔助部分的機(jī)電一體化功能;第三級為上位控制系統(tǒng),采用DELL公司工控機(jī),用于紙機(jī)傳動系統(tǒng)狀態(tài)監(jiān)控,實(shí)現(xiàn)整個(gè)紙機(jī)自動控制。并可通過工業(yè)以太網(wǎng)與QCS系統(tǒng)、DCS系統(tǒng)、廠級管理級等聯(lián)網(wǎng),可實(shí)現(xiàn)紙機(jī)控制系統(tǒng)優(yōu)化控制。

紙機(jī)電氣傳動控制系統(tǒng)的設(shè)計(jì) 3.1 系統(tǒng)硬件選型 硬件選擇依據(jù)系統(tǒng)的控制精度、通訊速度、響應(yīng)時(shí)間、高性價(jià)比、高可靠性的原則,選用SIEMENS S7 314PLC、CP340通信處理器,作為系統(tǒng)主控單元,控制整個(gè)系統(tǒng)。上位機(jī)選用采用DELL工控機(jī),配置為“PIV2.0G/21”,用于紙機(jī)傳動系統(tǒng)狀態(tài)監(jiān)控。 變頻器選用Allen-Bradley公司的powerflex系列高性能矢量變頻器,它設(shè)計(jì)緊湊,節(jié)省空間,給用戶提供強(qiáng)大的電機(jī)速度控制功能,大起動轉(zhuǎn)矩可達(dá)150%的電機(jī)額定轉(zhuǎn)矩;可變的PWM允許變頻器在低頻下輸出更大的電流,數(shù)字PID功能提高了應(yīng)用的靈活性,計(jì)時(shí)器、計(jì)數(shù)器、基本邏輯和步序邏輯功能可以減少硬件設(shè)計(jì)成本并簡化控制方案,總之,powerflex系列高性能矢量變頻器的精巧設(shè)計(jì)可較理想地滿足該機(jī)的高傳動性能的需要。
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