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yyba_1999
美人一笑解千愁
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樓主  發(fā)表于: 2016-09-08 05:42
4~20mA輸入控制三菱變頻器，問(wèn)題是變頻器頻率偶爾不受控制，會(huì )跑到120HZ最大值，且每次持續時(shí)間不定。
問(wèn)問(wèn)什么情況會(huì )造成這種現象？
仙居人家
我來(lái)了。
級別: 網(wǎng)絡(luò )英雄
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1樓  發(fā)表于: 2016-09-08 07:24
信號線(xiàn)是屏蔽線(xiàn)嗎？
永無(wú)止境 !@#$%^&*
天下風(fēng)云出我輩，一入江湖歲月催。
皇圖霸業(yè)談笑中，不勝人間一場(chǎng)醉。
提劍跨騎揮鬼雨，白骨如山鳥(niǎo)驚飛。
塵事如潮人如水，只嘆江湖幾人回。

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