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citycow
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樓主  發(fā)表于: 2009-10-27 15:37
FX1S的產(chǎn)品說(shuō)明書(shū)注明:24+ 、 COM端子可以作為傳感器用共給電源400mA/DC24V使用。
現在我的氣動(dòng)使用的電磁閥為DC24V 、250mA 。請問(wèn)能否直接用PLC長(cháng)期驅動(dòng)這個(gè)電磁閥?補充:雙控電磁閥,10分鐘換向一次。這個(gè)工作電流(功率)都只有PLC輸出電流(功率)的62.5%,動(dòng)作次數也不頻繁,為什么不能直接驅動(dòng)?請幫忙解釋一下,謝謝!還有,樓下有說(shuō)到接外部電源再濾波,這里濾波我就更不懂了。
[ 此帖被citycow在2009-10-28 08:02重新編輯 ]
wu32u2
耐得住挫折的打磨,我們將迸發(fā)出比鉆石還璀璨的光芒——
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1樓  發(fā)表于: 2010-04-12 08:19
plc的輸出COM斷接24v的開(kāi)關(guān)電源,可以直接控制電磁閥,不過(guò)要考慮你開(kāi)關(guān)電源的功率問(wèn)題。有可能是你電磁閥的總功率大于開(kāi)關(guān)電源的輸出功率。
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