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tjzhmjj
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樓主  發(fā)表于: 2011-10-02 19:33
我單位有一設備,用的是臺達的PLC,近一段時(shí)間總顯示正在通訊,可總也連接不上。打開(kāi)一看是PLC的運行指示燈不亮,可有時(shí)又恢復正常。于是懷疑是PLC有故障,買(mǎi)來(lái)新的考入程序后一切正常。本以為萬(wàn)事大吉,可沒(méi)幾天同樣的故障又出現了。我這才想到PLC外接24V電源是否正常。一測,20.4V,將電壓調回24V后再也沒(méi)有出現問(wèn)題。因此,我建議同行,在出現類(lèi)似故障時(shí)要先檢查一下開(kāi)關(guān)電源的電壓是否正常。
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    rockyhuo
    專(zhuān)業(yè)制造全伺服高速衛生巾機器
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    1樓  發(fā)表于: 2011-10-02 22:42
    這個(gè)是常識。
    變頻器中心放卷,可以穩定達到280M/分鐘線(xiàn)速度.
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