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愿天天天藍
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樓主  發(fā)表于: 2020-02-02 13:07
用三菱PLC，如果用485BD板（或485ADPMB）用MODBUS協(xié)議去啟動(dòng)變頻器，就算把PLC的電斷了，變頻器也不會(huì )停，除非是再次用PLC去停止變頻器。
這樣感覺(jué)蠻危險的。請問(wèn)都是這樣子，還是用的方法不對。
另外同樣的問(wèn)題，用點(diǎn)動(dòng)通訊變頻器并不是一點(diǎn)就停止運行，而是一點(diǎn)就是以點(diǎn)動(dòng)的頻率運行變頻器了。除非再次停止。
cythyx
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1樓  發(fā)表于: 2020-02-02 14:49
所以很多都是端子控制啟停，通訊控制頻率。

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