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更新時(shi)間(jian)：2024-06-10

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多年修復解決西門子6SE70變頻器/伺服報EEE；上海恒稅電氣有限公(gong)司(si)，你的(de)(de)(de)(de)(de)選擇沒有錯。公(gong)司(si)自成立(li)(li)以(yi)來(lai)，長期銷售維修(xiu)西(xi)門子(zi)變頻器(qi)(qi)及伺服(fu)驅動器(qi)(qi)的(de)(de)(de)(de)(de)，觸摸屏，PLC，直(zhi)流調速(su)器(qi)(qi)等，積累了豐富的(de)(de)(de)(de)(de)維修(xiu)經驗，對所維修(xiu)的(de)(de)(de)(de)(de)機(ji)(ji)器(qi)(qi)建立(li)(li)完善(shan)的(de)(de)(de)(de)(de)維修(xiu)檔(dang)案(an)，所有我們維修(xiu)的(de)(de)(de)(de)(de)機(ji)(ji)器(qi)(qi)我們都有完善(shan)的(de)(de)(de)(de)(de)參(can)數備份，確保(bao)我們維修(xiu)的(de)(de)(de)(de)(de)機(ji)(ji)器(qi)(qi)上機(ji)(ji)即能使用(yong)。

多年修復解決西門子6SE70變頻器/伺服報EEE分(fen)析；操(cao)(cao)作(zuo)控(kong)制面板(ban)(ban)PMU板(ban)(ban)液晶顯(xian)示(shi)(shi)屏(ping)顯(xian)示(shi)(shi)“E”報警 檢(jian)查(cha)(cha)處：檢(jian)查(cha)(cha)底板(ban)(ban)電(dian)源塊N2(L4974A)第(di)1腳(jiao)的(de)開機電(dian)壓(ya)(ya)為(wei)(wei)11.32V,正常(chang)(chang)(chang)值(zhi)為(wei)(wei)26.7V;第(di)20腳(jiao)輸出電(dian)壓(ya)(ya)為(wei)(wei)0.117V,正常(chang)(chang)(chang)值(zhi)為(wei)(wei)15.31V;基(ji)準電(dian)壓(ya)(ya)塊N3(MC340)第(di)1腳(jiao)電(dian)壓(ya)(ya)為(wei)(wei)0.315V,正常(chang)(chang)(chang)值(zhi)為(wei)(wei)2.1V;第(di)2腳(jiao)的(de)電(dian)壓(ya)(ya)值(zhi)在1.5~1.8V之間變(bian)化(hua)，而正常(chang)(chang)(chang)值(zhi)為(wei)(wei)5.1V.檢(jian)查(cha)(cha)繼電(dian)器K4,線圈電(dian)路(lu)串聯兩支二極管(guan)V16、V15,電(dian)阻(zu)值(zhi)分(fen)別(bie)為(wei)(wei)3.67Ω和(he)5.5Ω，已經(jing)短(duan)路(lu)，V28(5C)三極管(guan)基(ji)極電(dian)阻(zu)由(you)正常(chang)(chang)(chang)值(zhi)4.7kΩ變(bian)為(wei)(wei)150kΩ，已經(jing)燒壞(huai)。更換新的(de)電(dian)阻(zu)和(he)二極管(guan)后，運行(xing)正常(chang)(chang)(chang)。 2.2 西門子(zi)6SE70系列變(bian)頻(pin)器的(de)操(cao)(cao)作(zuo)控(kong)制面板(ban)(ban)PMU液晶顯(xian)示(shi)(shi)屏(ping)上無顯(xian)示(shi)(shi)，“黑(hei)屏(ping)” (1)故障(zhang)現象：西門子(zi)6SE7016-1TA61-Z變(bian)頻(pin)器操(cao)(cao)作(zuo)控(kong)制面板(ban)(ban)PMU液晶顯(xian)示(shi)(shi)屏(ping)“黑(hei)屏(ping)”

X9端子與繼(ji)電(dian)(dian)(dian)器K4的(de)相關電(dian)(dian)(dian)路N4集(ji)成塊(kuai)UC3844AN各(ge)引腳(jiao)(jiao)電(dian)(dian)(dian)壓數據(ju)如表(biao)3所示(shi)。N7 集(ji)成塊(kuai)L7824各(ge)引腳(jiao)(jiao)電(dian)(dian)(dian)壓數據(ju)如表(biao)4所示(shi)。(3)故(gu)障現象：操作控制(zhi)面板(ban)PMU液(ye)晶(jing)顯示(shi)屏“黑屏” 檢查(cha)(cha)處(chu)理：檢查(cha)(cha)底板(ban)，測(ce)(ce)量N4集(ji)成塊(kuai)UC3844AN 4-8腳(jiao)(jiao)之(zhi)間的(de)7.5KΩ電(dian)(dian)(dian)阻(zu)(zu)(zu)燒壞，V34場效應管K2225柵(zha)極限(xian)流電(dian)(dian)(dian)阻(zu)(zu)(zu)R133變值(zhi)為(wei)720kΩ，用熱風槍將貼片電(dian)(dian)(dian)阻(zu)(zu)(zu)拆下，更(geng)換新貼片電(dian)(dian)(dian)阻(zu)(zu)(zu)。上電(dian)(dian)(dian)測(ce)(ce)試各(ge)點電(dian)(dian)(dian)壓，正常。恢復接(jie)線，送電(dian)(dian)(dian)運行正常。 (4)故(gu)障現象：操作控制(zhi)面板(ban)PMU液(ye)晶(jing)顯示(shi)屏“黑屏” 檢查(cha)(cha)處(chu)理：檢查(cha)(cha)底板(ban)，測(ce)(ce)量V34場效應管K2225,發現柵(zha)極保護貼片電(dian)(dian)(dian)阻(zu)(zu)(zu)24Ω變值(zhi)為(wei)430kΩ，電(dian)(dian)(dian)源變壓器T6二次繞組之(zhi)間，經V58串聯連接(jie)的(de)5只(zhi)相并聯的(de)100Ω電(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)為(wei)33Ω，拆下測(ce)(ce)100Ω電(dian)(dian)(dian)阻(zu)(zu)(zu)其中一(yi)只(zhi)已變值(zhi)為(wei)10MΩ，另一(yi)只(zhi)電(dian)(dian)(dian)阻(zu)(zu)(zu)變值(zhi)為(wei)1MΩ。更(geng)換24Ω、100Ω電(dian)(dian)(dian)阻(zu)(zu)(zu)。正常