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薛立軍
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樓主  發(fā)表于: 2012-05-31 10:11
一客戶(hù)設備使用臺達B系列變頻器多臺，陸續出現CF3.7報警。檢測發(fā)現電流檢測板有問(wèn)題，費力將其逆變模塊取下拆除電流檢測板。發(fā)現左上角兩只貼片電阻損壞，換新后故障排除。三塊電流檢測板緊挨著(zhù)的兩塊出現故障較多，外側易維修的那塊板沒(méi)有發(fā)現故障。也許是散熱好的原因。
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