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quq125
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樓主  發(fā)表于: 2010-04-08 14:26
一設備控制箱,一臺達變頻器旁邊很近處是一OMRON的PLC,用了4年多,一直很正常,最近PLC的3個(gè)輸入點(diǎn)出現問(wèn)題,不給信號時(shí),PLC輸入指示燈會(huì )亮,外部信號斷開(kāi)后,其指示燈不會(huì )馬上滅。變頻器關(guān)閉后,其輸入指示燈工作正常,請問(wèn)家園的朋友是什么原因,該怎么解決,很急
ymmfa
不想大江大河,不想浪起潮落,只愿一灣小湖,靜待歲月安好。
級別: 管理員

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1樓  發(fā)表于: 2010-04-08 19:49
去賣(mài)磁鐵的地方,說(shuō)買(mǎi)濾波的磁環(huán)。
這種磁環(huán)也是黑色的,但吸不了鐵,讓變頻器的進(jìn)線(xiàn)和出線(xiàn)在分別的磁環(huán)上轉幾圈,這樣干擾能降低一些。
特別提醒大家:
偶爾修改下自己的密碼,以防被盜
不要在多個(gè)網(wǎng)站都用一樣賬號密碼
偶爾還是要發(fā)發(fā)貼,回回貼,不要總潛水

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