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358273433
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樓主  發(fā)表于: 2011-07-30 08:41
FX3U與三菱FR-740變頻器通過(guò)485-BD通信，接線(xiàn)和通信程序都是按說(shuō)明書(shū)樣例完成，但通信時(shí)SD燈不停閃爍，RD燈不亮，變頻器沒(méi)有任何反應。我看有網(wǎng)友說(shuō)要把參數551設為1�？晌覀冞@只變頻器551最小設置數為2，不能設為1。請大家指教一下，變頻器通信不成功有哪些原因？謝謝各位！
zq11111
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1樓  發(fā)表于: 2011-08-01 14:56
期待進(jìn)一步的討論，我也可以學(xué)習了。

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