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樓主  發(fā)表于: 2014-11-22 19:59
知道變頻的低速效果不好，不過(guò)老板為了省錢(qián)，用倉庫的現成品做的。額定轉速1480RPM，減速比35.57，用PLC模擬量輸出控制，0-10V控制。變頻器用的先進(jìn)磁通矢量控制。PLC輸出的模擬量電壓到了一定程度后，變頻器的最低頻率死活都是0.76Hz了。問(wèn)一下，怎么可以達到網(wǎng)上人家說(shuō)的0.2Hz?    用V/F控制可以達到嗎？

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