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celia
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樓主  發(fā)表于: 2009-09-23 13:07
各位大哥,我用的是三菱PLC FX2N-32MR的。我的輸出端Y4到Y7接的是最大為24伏的用電器,我想問(wèn)一下,我現在想讓用電器能夠被使用。
是不是我把COM1接到輸入端的24伏接線(xiàn)柱這里,然后Y4到Y7接用電器的一端(正極),另一端(負極)接地呢?
輸入端有兩個(gè)接線(xiàn)柱,一個(gè)上面顯示24V,一個(gè)顯示接地。
不知道我這樣接對不對?會(huì )不會(huì )燒壞PLC?
謝謝大家幫忙。。。
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1樓  發(fā)表于: 2009-10-05 08:42
輸入端的COM無(wú)論接24V還是0V它都是NPN的,接外接電源的24V或0V只是為了和外部電源共地
至于輸出端的COM接24或0V就看你的個(gè)人習慣都無(wú)所謂
接24外部就接0V    接0V外部就接24V

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