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樓主  發(fā)表于: 2019-10-31 10:39
用PLC 控制正反轉電動(dòng)閥實(shí)現恒定值控制

請大家幫幫忙提提建議,用PLC 控制正反轉電動(dòng)閥實(shí)現恒定值控制。     壓力傳感器檢測管道要實(shí)時(shí)壓力,控制正反轉電動(dòng)閥  的開(kāi)閉  ,實(shí)現管道壓力一定的恒定。  電動(dòng)閥 不是比例閥 無(wú)法進(jìn)行開(kāi)度控制。
redrock99
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1樓  發(fā)表于: 2019-11-04 20:40
你的開(kāi)關(guān)閥閥芯流量特性是啥樣的的?拋物線(xiàn)還是線(xiàn)性?這個(gè)很總要。另外,用開(kāi)閥門(mén)時(shí)間定長(cháng)不能嗎?閥門(mén)關(guān)閉時(shí)歸零,

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