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jiadian2468
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樓主  發(fā)表于: 2016-11-01 20:51
一臺西門(mén)子280KW變頻器，原控制方式是0-20ma控制，現在想用4-40ma控制，（因為PLC給定的就是4-40ma的電流信號）請問(wèn)這樣該怎么接線(xiàn)，參數需要怎么調，可以這樣用嗎？？？？？？？求解，謝謝。
tingfenghu
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1樓  發(fā)表于: 2016-11-01 21:01
不知道什么PLC會(huì )有這樣的電流標準,至少我沒(méi)有見(jiàn)過(guò).一般來(lái)說(shuō)變頻只支持最大20ma的電流,即使用給40ma電流也檢測不出來(lái).
二手PLC,觸摸屏，伺服驅動(dòng)，各類(lèi)氣動(dòng)設備
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