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原旭朋
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樓主  發(fā)表于: 2019-03-04 19:03
如題，具體情況是PLC控制一臺變頻器帶動(dòng)一臺減速電機卷鐵皮料帶，越卷鐵皮直徑越大，電機恒速情況下，卷鐵皮料帶的速度越來(lái)越快，怎么樣通過(guò)觸摸屏設置一個(gè)速度值，然后可以實(shí)現恒速控制變頻器，即后期直徑變大，降低變頻器頻率，使速度趨于恒速。
shcaoxianyon
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1樓  發(fā)表于: 2019-03-05 15:11
你可以在PLC里面做一個(gè)卷徑計算，或者直接用個(gè)光電開(kāi)關(guān)，轉一圈乘以2倍的材料厚度，根據卷徑來(lái)決定收卷電機的快慢。     

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