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rafael
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樓主  發(fā)表于: 2024-02-26 16:58
RT，以前我以為GND就是接地線(xiàn)，

最近做一個(gè)項目使用伺服（松下）回原點(diǎn)時(shí)，如果其它軸也在動(dòng)作，那么PLC接收的Z相零點(diǎn)信號很容易丟失，導致回原點(diǎn)位置異常。后來(lái)查看驅動(dòng)器說(shuō)明書(shū)發(fā)現Z相零點(diǎn)信號的GND要接開(kāi)關(guān)電源公共端，改接線(xiàn)后就正常了。

查閱資料，發(fā)現GND不是地線(xiàn)的意思，而是零電位的參考點(diǎn)。

GND接地線(xiàn)還是電源負極，各位是怎么區分的？
不積跬步無(wú)以行千里
pppp1211
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1樓  發(fā)表于: 2024-02-27 11:30
GND一般用于模擬量的參考點(diǎn)使用。不要與系統的PE接地線(xiàn)混用。

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