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小心眼兒
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樓主  發(fā)表于: 2012-11-02 12:40
圖片：
請教各位大俠：
     更換變頻器后，不知道根據這個(gè)電路選哪個(gè)“宏”，另，低于一定壓力電機工作，到達一定壓力工作停止應如何設置。謝謝各位。
liuchengji20
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1樓  發(fā)表于: 2012-11-02 13:16
你的壓力傳感器是模擬量信號，還是數字量信號。這要看你現在買(mǎi)的變頻器是否帶模擬量信號的，如果沒(méi)有就通過(guò)PLC等中間的接受信號后，再給出開(kāi)關(guān)信號觸發(fā)變頻器正反轉。
Made wish ，517029687

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