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fudong
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樓主  發(fā)表于: 2011-11-07 14:01
大家好!請問(wèn)松下FP-X L30     PLC   輸入點(diǎn)指示燈 不亮是什么原因?  RUN亮    謝謝
znz43
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1樓  發(fā)表于: 2011-11-08 10:18
圖片:
圖片:
松下PLC和三菱的不一樣,輸入端內部和24V是不接通的,要外接24V電。
短接COM和X是不會(huì )有輸入的。
你應該在COM和X間加24V電壓才有輸入。至于正負可由你自選,FP-X型對NPN,PNP都能用.
[ 此帖被znz43在2011-11-08 10:41重新編輯 ]
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