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plcxt(s.m)
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樓主  發(fā)表于: 2010-12-24 10:36
請教一下如果幾組編碼器的線(xiàn)綁在一起出了各自接地外還學(xué)要做些什么來(lái)抗干擾？最近一個(gè)變頻器一天總要出現一兩次編碼器故障，查線(xiàn)路也沒(méi)有什么異常，編碼器確定是好的
469423209
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1樓  發(fā)表于: 2010-12-24 12:29
編碼器的線(xiàn)本來(lái)就有接地的屏蔽層  我是想說(shuō)名一下，編碼器的干擾可能是變頻器的出線(xiàn)照成的，一定要在不同的電纜溝中走，如果沒(méi)有這個(gè)條件就要將編碼器的線(xiàn)套上鋼管或金屬軟管，最后對鋼管或金屬軟管進(jìn)行接地。還有不要好幾根編碼器的線(xiàn)走在一起。它們之間未必就沒(méi)有干擾。

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