產(chǎn)品詳情
影響執(zhí)行機(jī)構(gòu)出錯(cuò)的主要原因有:
1)控制負(fù)載的接觸不能可靠動(dòng)作,PLC發(fā)出了動(dòng)作指令,但執(zhí)行機(jī)構(gòu)并沒按要求動(dòng)作;
2)控制變頻器起動(dòng),由于變頻器自身故障,變頻器所帶電機(jī)并沒按要求工作;
3)各種電動(dòng)閥、電磁閥該開的沒能打開,該關(guān)的沒能關(guān)到位,由于執(zhí)行機(jī)構(gòu)沒能按PLC的控制要求動(dòng)作,使系統(tǒng)無法正常工作,降低了系統(tǒng)可靠性。要提高整個(gè)控制系統(tǒng)的可靠性,必須提高輸入信號(hào)的可靠性和執(zhí)行機(jī)構(gòu)動(dòng)作的準(zhǔn)確性,否則PLC應(yīng)能及時(shí)發(fā)現(xiàn)問題,用聲光等報(bào)警辦法提示給操作人員,盡快排除故障,讓系統(tǒng)安全、可靠、正確地工作。
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1606-XL120DR
TSXP573634M
TSXAEY810
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