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1771-ALX+++1771-ALX

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一般來說，當(dāng)遇到西門子變頻器故障時(shí)，再上電之前首先要用萬用表檢查一下整流橋和IGBT模塊有沒有燒，線路板上有沒有明顯燒損的痕跡。
　　

廚師薛樂和齊彬：

“*夸咱做的產(chǎn)品！"

泰尼菜譜

主食：AB，施耐德和GE 發(fā)那科

四菜一湯：AB 1785、1756、1747、1784，施耐德140系列，發(fā)那科A06B系列，西門子6ES，505系列熱賣！

餐后水果：泰尼現(xiàn)貨

：張亮

電    話：

手    機(jī)：

： 2314094943

　　具體方法是：用萬用表(是用模擬表)的電阻1K檔，黑表棒接變頻器的直流端(-)極，用紅表棒分別測(cè)量變頻器的三相輸入端和三相輸出端的電阻，其阻值應(yīng)該在5K-10K之間，三相阻值要一樣，輸出端的阻值比輸入端略小一些，并且沒有充放電現(xiàn)象。然后，反過來將紅表棒接變頻器的直流端( )極，黑表棒分別測(cè)量變頻器三相輸入端和三相輸出端的電阻，其阻值應(yīng)該在5K-10K之間，三相阻值要一樣，輸出端的阻值比輸入端略小一些，并且沒有充放電現(xiàn)象。否則，說明模塊損壞。這時(shí)候不能盲目上電，特別是整流橋損壞或線路板上有明顯的燒損痕跡的情況下尤其禁止上電，以免造成更大的損失。

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