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杰森斯坦表哥
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樓主  發(fā)表于: 2023-08-07 09:07
各位大神，我用200smart和變頻器通過(guò)Modbus通訊給頻率出現問(wèn)題了，就是當電機運行過(guò)程中我更改一個(gè)頻率，變頻器本身沒(méi)有變化顯示的還是原來(lái)的頻率數值，但是我監控PLC的頻率控制字里面數值是已經(jīng)更改了的，不知道為什么改不了 ，有沒(méi)有大神指點(diǎn)一下��？？跪謝�。�！
陽(yáng)春節拍
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1樓  發(fā)表于: 2023-08-07 16:47
需要先在變頻器上將頻率源設置為通訊給定。
特別提醒，通訊給定頻率，默認上電時(shí)為0hz，且最低頻率對此無(wú)效。即寫(xiě)頻率前，即使給出運行命令也只能運行在0hz下

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