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蘇格拉沒(méi)有底
能力有限，努力無(wú)限。
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樓主  發(fā)表于: 2019-12-27 11:33
今天遇到個(gè)情況，三菱plc手動(dòng)有輸出24V，但是繼電器沒(méi)有反應。亮電流用萬(wàn)能表量不出來(lái)。有遇到過(guò)嗎
改變思維就是改變現狀的方法，思想覺(jué)悟決定生活的富裕程度。
zzk139
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1樓  發(fā)表于: 2019-12-29 14:39
測繼電器線(xiàn)圈二端，如果有24V電壓而繼電器不吸合，估計是繼電器壞，換其他繼電器試試，如果換好的繼電器也不吸合，有可能是PLC輸出點(diǎn)壞，換其他輸出點(diǎn)試試看，有些時(shí)候輸出點(diǎn)有電壓，但電流輸出不夠，線(xiàn)圈不能吸合。

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