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huangjiahong
天才也是百分九十九的血汗加百分一的靈感
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樓主  發(fā)表于: 2016-05-09 19:17
多個(gè)變頻器（或不同品牌）采用繼電器輸出型PLC控制。"SD"和“DCM"表示運行控制信號的公共端，"STF"和"FWD"表示正轉控制端子。
請教熟悉變頻器電路的高手：假設確定公共端都是DC24V的負極（或正極），這樣的接法是否可行？
有你的幫助!我的學(xué)識更進(jìn)步
langui
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1樓  發(fā)表于: 2016-05-12 11:49
完全可以的，這在電子技術(shù)中叫信號共地，用GND標記。不管是PLC，工控機，變頻器，或其他的，如果信號對地接通，都是可以共地的

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