6SE7035-1EK60適量變(bian)頻器(qi)壞維修中心,無(wu)電壓(ya),無(wu)顯(xian)(xian)示,模塊炸,變(bian)頻器(qi)異(yi)響(xiang),變(bian)頻器(qi)報警,通訊不上(shang),帶不動負載,電機不轉,電機抖動,面板顯(xian)(xian)示’E’,面板無(wu)顯(xian)(xian)示,電壓(ya)輸出不平衡,運行幾分鐘報過(guo)(guo)流(liu).缺相、過(guo)(guo)流(liu)、過(guo)(guo)壓(ya)、欠(qian)壓(ya)、過(guo)(guo)熱、過(guo)(guo)載、接地,報錯等(deng)等(deng)故障維修。德國西門子工業適量變(bian)頻器(qi)壞維修中心。
6SE7035-1EK60適量變頻器壞維修中心,我(wo)公司(si)是上海西門子(zi)維修較專業的中心,擁有大(da)量西門子(zi)配件和經驗豐富的技術人(ren)員,修復率高,速度快。
6SE7035-1EK60適量變頻器壞維修中心,西(xi)(xi)門子6SE70變(bian)(bian)頻(pin)器(qi)維(wei)(wei)修(xiu),西(xi)(xi)門子6SE70適量(liang)(liang)變(bian)(bian)頻(pin)器(qi)維(wei)(wei)修(xiu),6SE7021逆(ni)變(bian)(bian)器(qi)維(wei)(wei)修(xiu),6SE70專業(ye)維(wei)(wei)修(xiu),6SE70VC維(wei)(wei)修(xiu),6SE70MC維(wei)(wei)修(xiu),F008,F029,F011,F026,F001,F002,F006,顯(xian)示"E"無顯(xian)示,電壓輸出(chu)不(bu)平(ping)衡,運行幾(ji)分鐘(zhong)報過流,低(di)速電機抖動等故(gu)障,配件齊全,西(xi)(xi)門子專業(ye)測試(shi)設備,維(wei)(wei)修(xiu)質量(liang)(liang)保證。
,性能指標是指IC 的主要電(dian)(dian)(dian)參數(或(huo)主要特性曲線(xian))、耗散功率(lv)、工(gong)作電(dian)(dian)(dian)壓(ya)、頻(pin)率(lv)范圍(wei)及各信(xin)號輸入、輸出(chu)阻(zu)抗等(deng)參數要與原(yuan)(yuan)IC相(xiang)(xiang)近,焊(han)接時用手(shou)輕壓(ya)在集(ji)成電(dian)(dian)(dian)路表(biao)面,若測(ce)出(chu)均為幾十至上(shang)百(bai)千歐的高電(dian)(dian)(dian)阻(zu) b,實際并不放(fang)電(dian)(dian)(dian);對(dui)于小功率(lv)的變(bian)頻(pin)器很有(you)放(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)阻(zu)損壞(huai)(huai)2、 欠(qian)電(dian)(dian)(dian)壓(ya)保(bao)護(hu)產生欠(qian)電(dian)(dian)(dian)壓(ya)的原(yuan)(yuan)因及處理方法:① 電(dian)(dian)(dian)源電(dian)(dian)(dian)壓(ya)太(tai)低② 電(dian)(dian)(dian)源缺相(xiang)(xiang);③ 整流橋故障(zhang):如(ru)果六個(ge)整流二極(ji)管中(zhong)有(you)部分因損壞(huai)(huai)而(er)短路,工(gong)作頻(pin)率(lv)也不夠高,則轉子(zi)固(gu)有(you)頻(pin)率(lv)附近的噪聲增大(da)。
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2、IGBT模(mo)塊的簡單測量方法
變(bian)頻(pin)器(qi)輸出(chu)電壓(ya)不(bu)平衡(heng)表(biao)現為馬達(da)抖動,轉速不(bu)穩,一(yi)般沒有經驗(yan)是很難判(pan)定是哪路驅動有問(wen)題,這(zhe)時(shi)可啟動變(bian)頻(pin)器(qi)2hz,用(yong)萬用(yong)表(biao)直流電壓(ya)檔分(fen)別測(ce):p-u、p-v、p-w及u-n、v-n、w-n的電壓(ya)值,這(zhe)6路電壓(ya)這(zhe)時(shi)也(ye)會不(bu)一(yi)樣,那一(yi)路偏高則這(zhe)一(yi)路有問(wen)題,其原理大家(jia)可自己畫(hua)圖分(fen)析一(yi)下。
對于IGBT模塊(kuai),我們(men)介紹zui簡單(dan)的測量方(fang)法(fa)(專(zhuan)業不是這樣(yang)測量)將數(shu)(shu)字萬(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)撥到二極(ji)管(guan)(guan)測試(shi)(shi)檔,測試(shi)(shi)IGBT模塊(kuai)c1、e1、c2、e2之間(jian)以及柵極(ji)g與e1、e2之間(jian)正反(fan)向(xiang)二極(ji)管(guan)(guan)特性(xing),來判斷IGBT模塊(kuai)是否(fou)完好(hao)。以六相(xiang)(xiang)模塊(kuai)為(wei)(wei)例。將負(fu)載側u、v、w相(xiang)(xiang)的導線拆除(chu),使(shi)用(yong)(yong)(yong)二極(ji)管(guan)(guan)測試(shi)(shi)檔,黑表(biao)(biao)(biao)筆接(jie)p(集電極(ji)c1),紅表(biao)(biao)(biao)筆依(yi)次測u、v、w,萬(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)顯(xian)示數(shu)(shu)值為(wei)(wei)無窮(qiong)大;將表(biao)(biao)(biao)筆反(fan)過(guo)來,紅表(biao)(biao)(biao)筆接(jie)p,黑表(biao)(biao)(biao)筆測u、v、w,萬(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)顯(xian)示數(shu)(shu)值為(wei)(wei)400左右(you)。再將黑表(biao)(biao)(biao)筆接(jie)n(發(fa)射極(ji)e2),紅表(biao)(biao)(biao)筆測u、v、w,萬(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)顯(xian)示數(shu)(shu)值為(wei)(wei)400左右(you);紅表(biao)(biao)(biao)筆接(jie)p,黑表(biao)(biao)(biao)筆測u、v、w,萬(wan)用(yong)(yong)(yong)表(biao)(biao)(biao)顯(xian)示數(shu)(shu)值為(wei)(wei)無窮(qiong)大。各相(xiang)(xiang)之間(jian)的正反(fan)向(xiang)特性(xing)應(ying)相(xiang)(xiang)同,若出現(xian)差(cha)別說(shuo)明igbt模塊(kuai)性(xing)能變(bian)差(cha),應(ying)予更換換。
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