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888888
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樓主  發(fā)表于: 2011-03-01 08:49
本人在使用安川G7的2.2KW， 3.7KW，5.5KW等小功率變頻器時(shí)，碰到了很多PUF， VCF報警以及 IGBT 模塊和驅動(dòng)板燒壞等問(wèn)題，但是同樣的機型在其他客戶(hù)那邊用了很長(cháng)時(shí)間一點(diǎn)問(wèn)題也沒(méi)有，出故障的那幾家客戶(hù)有其他不同設備上也有使用安川變頻器,人家的一點(diǎn)問(wèn)題也沒(méi)有，但是我們所出去的設備都是一樣的，包括接線(xiàn)方式，控制方式等等�，F在的接線(xiàn)方式是電源380V經(jīng)空開(kāi)直接進(jìn)變頻器然后變頻器直接進(jìn)電機�，F在就想請問(wèn)一下在變頻器外部加裝一些什么樣的外部保護，可以避免此類(lèi)問(wèn)題發(fā)生。在變頻器輸出側加裝電抗器有效嗎或者加裝什么樣的保護電路？
manbukan
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1樓  發(fā)表于: 2011-03-01 11:13
看看是否需要外加制動(dòng)電阻！或者看是否使用方把普通變頻當步進(jìn)變頻使用

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