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富陽(yáng)工控
燈泡電工
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樓主  發(fā)表于: 2021-07-21 11:32
  原先是一臺安川G5的變頻器,模擬量輸入輸出偏差在0.2V以?xún),前兩天壞了,想換安川H1000貨期太長(cháng)就采購了一臺三菱A820,三菱的偏差最大有0.4V,也就是說(shuō)上位機給8V模擬電壓,AM-5端子輸出監視模擬電壓只有7.6V,想把偏差壓縮到0.2以?xún),大佬們支支招?img src="images/post/smile/default/lovely.gif" />
lin10663
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1樓  發(fā)表于: 2021-07-21 14:13
引用
引用樓主富陽(yáng)工控于2021-07-21 11:32發(fā)表的 三菱A820模擬量輸出問(wèn)題請教 :
  原先是一臺安川G5的變頻器,模擬量輸入輸出偏差在0.2V以?xún),前兩天壞了,想換安川H1000貨期太長(cháng)就采購了一臺三菱A820,三菱的偏差最大有0.4V,也就是說(shuō)上位機給8V模擬電壓,AM-5端子輸出監視模擬電壓只有7.6V,想把偏差壓縮到0.2以?xún),大佬們支支招?img src="images/post/smile/default/lovely.gif" />


那阻抗損失電壓差~~用轉換版~~again offset去處理把
樓主留言:
大佬的意思是模擬量輸入輸出都加信號隔離器?
努力~學(xué)習
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kyy80
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2樓  發(fā)表于: 2021-07-21 17:20
模擬量的輸出或輸入也有參數可調整的。。。。。

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