6ES7352-1AH02-0AE0 電子凸輪控制器
PLC控制下的系統(tǒng)無負(fù)荷聯(lián)動(dòng)試運(yùn)轉(zhuǎn)
本步驟的試驗(yàn)?zāi)康氖谴_認(rèn)經(jīng)過單體無負(fù)荷試運(yùn)的工藝設(shè)備與經(jīng)過系統(tǒng)模擬試運(yùn)證明邏輯無誤的PLC聯(lián)接后,能否按工藝要求正確運(yùn)行,信號(hào)系統(tǒng)是否正確,檢驗(yàn)各外部節(jié)點(diǎn)的可靠性、穩(wěn)定性。試驗(yàn)前,要編制系統(tǒng)無負(fù)荷聯(lián)動(dòng)試車方案,討論確認(rèn)后嚴(yán)格按方案執(zhí)行。試驗(yàn)時(shí),先分子系統(tǒng)聯(lián)動(dòng),子系統(tǒng)的連鎖用人工輔助(節(jié)點(diǎn)短接或強(qiáng)置),然后進(jìn)行全系統(tǒng)聯(lián)動(dòng),試驗(yàn)內(nèi)容應(yīng)包括設(shè)計(jì)要求的各種起停和運(yùn)轉(zhuǎn)方式、事故狀態(tài)與非常狀態(tài)下的停車、各種信號(hào)等??傊?,應(yīng)盡可能地充分設(shè)想,使之更符合現(xiàn)場(chǎng)實(shí)際情況。事故狀態(tài)可用強(qiáng)置方法模擬,事故點(diǎn)的設(shè)置要根據(jù)工藝要求確定。
在聯(lián)動(dòng)負(fù)荷試車前,要再對(duì)全系統(tǒng)進(jìn)行一次檢查,并對(duì)操作人員進(jìn)行培訓(xùn),確保系統(tǒng)聯(lián)動(dòng)負(fù)荷試車一次成功。
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