西門子變頻器6SE70上電無法啟動修復專家

西(xi)門(men)子(zi)(zi)6SE70顯(xian)(xian)示F008維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，西(xi)門(men)子(zi)(zi)6SE70變頻器(qi)PSU電源板維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，6SE7031-7HG84-1JA1銷(xiao)售(shou)，6SE70變頻器(qi)F028維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，6SE70顯(xian)(xian)示F020維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)F010維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，6SE70報(bao)(bao)F011故(gu)(gu)(gu)障維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，F023維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，西(xi)門(men)子(zi)(zi)6SE70驅動(dong)片銷(xiao)售(shou)，西(xi)門(men)子(zi)(zi)6SE70陶瓷(ci)片銷(xiao)售(shou)，6SE70西(xi)門(men)子(zi)(zi)矢量變頻器(qi)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，6SE70啟(qi)動(dong)顯(xian)(xian)示F026維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，6SE70報(bao)(bao)F027維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)， 6SE70啟(qi)動(dong)報(bao)(bao)F029維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，F051故(gu)(gu)(gu)障維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，F101故(gu)(gu)(gu)障維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，6S70顯(xian)(xian)示F025維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，F102代碼(ma)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，F103故(gu)(gu)(gu)障維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)西(xi)門(men)子(zi)(zi)6SE70變頻器(qi)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)，公司提供(gong)上(shang)門(men)保養檢測維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)(xiu)服(fu)務。

 變(bian)頻(pin)器(qi)的(de)(de)過電(dian)(dian)(dian)(dian)壓(ya)集中表現在直流(liu)母線的(de)(de)支(zhi)流(liu)電(dian)(dian)(dian)(dian)壓(ya)上。正常情況(kuang)下，變(bian)頻(pin)器(qi)直流(liu)電(dian)(dian)(dian)(dian)為三相全波整(zheng)流(liu)后的(de)(de)平均值。若以380V 線電(dian)(dian)(dian)(dian)壓(ya)計算，則平均直流(liu)電(dian)(dian)(dian)(dian)壓(ya)Ud= 1.35 U 線＝513V。在過電(dian)(dian)(dian)(dian)壓(ya)發生時，直流(liu)母線的(de)(de)儲(chu)能電(dian)(dian)(dian)(dian)容將被充電(dian)(dian)(dian)(dian)，當電(dian)(dian)(dian)(dian)壓(ya)上至760V 左右(you)時，變(bian)頻(pin)器(qi)過電(dian)(dian)(dian)(dian)壓(ya)保(bao)護動作。因此，變(bian)頻(pin)器(qi)來說，都有一(yi)個(ge)正常的(de)(de)工(gong)作電(dian)(dian)(dian)(dian)壓(ya)范(fan)圍，當電(dian)(dian)(dian)(dian)壓(ya)超過這個(ge)范(fan)圍時很(hen)可(ke)能損壞

西門子變頻器6SE70上電無法啟動修復專家

變頻器，常見的過(guo)電(dian)壓有兩類(lei)。

   1、輸入(ru)交(jiao)流電(dian)源過壓(ya)

這種情況是指輸入電(dian)壓超過正常范圍，一般發生在節假日負載(zai)較輕，電(dian)壓升高或降低而線(xian)路出現故障，此時斷開電(dian)源，檢查、處理。

   2、發電類過電壓(ya)

   這(zhe)種情況出現的概率較高，主要是電(dian)(dian)機的同步(bu)轉速比實際轉速還高，使電(dian)(dian)動(dong)(dong)機處于發電(dian)(dian)狀(zhuang)態，而變頻(pin)器又沒有安裝制動(dong)(dong)單元，有兩(liang)起(qi)情況可(ke)以引起(qi)這(zhe)一故障。

 （1）當變頻器(qi)拖動大(da)慣性負載時(shi)，其減速時(shi)間(jian)設的(de)比(bi)較小，在減速過程(cheng)中，變頻器(qi)輸出(chu)的(de)速度比(bi)較快