加工中心西門(men)子(zi)840D主機(ji)(ji)(ji)黑屏(ping)維(wei)(wei)修診斷,西門(men)子(zi)鏜銑床/數(shu)控(kong)(kong)磨床/數(shu)控(kong)(kong)機(ji)(ji)(ji)床/數(shu)控(kong)(kong)系統(tong)840D系統(tong)開機(ji)(ji)(ji)黑屏(ping),電(dian)腦無顯示/屏(ping)幕不亮/開不了機(ji)(ji)(ji)維(wei)(wei)修,,你的(de)(de)(de)選擇(ze)沒有錯。公司(si)自(zi)成立(li)以來,長期維(wei)(wei)修變頻器(qi)(qi)及伺服驅(qu)動器(qi)(qi)的(de)(de)(de),觸摸(mo)屏(ping),PLC,直流調速器(qi)(qi),數(shu)控(kong)(kong)系統(tong)等,積累了豐富的(de)(de)(de)維(wei)(wei)修經驗,對所(suo)維(wei)(wei)修的(de)(de)(de)機(ji)(ji)(ji)器(qi)(qi)建立(li)完(wan)(wan)善的(de)(de)(de)維(wei)(wei)修檔案,所(suo)有我(wo)們維(wei)(wei)修的(de)(de)(de)機(ji)(ji)(ji)器(qi)(qi)我(wo)們都有完(wan)(wan)善的(de)(de)(de)參數(shu)備份,確保我(wo)們維(wei)(wei)修的(de)(de)(de)機(ji)(ji)(ji)器(qi)(qi)上(shang)機(ji)(ji)(ji)即能使(shi)用。
加工中心西門子840D主機黑屏維修診斷,德國西(xi)門子系統(tong)十年維修技術,全套(tao)檢測儀器,各種故障快(kuai)速修復(fu),質量保證(zheng),收費最低。
加工中心西門子840D主機黑屏維修診斷,故障現象:840d加工(gong)中心pcu50不(bu)定時(shi)黑屏分析:打開pcu50機(ji)殼,通(tong)電(dian)(dian)測(ce)試(shi)各組電(dian)(dian)源,電(dian)(dian)壓都正常,PG信號輸出(chu)OK。測(ce)試(shi)時(shi)鐘電(dian)(dian)路
,波(bo)形輸(shu)出都(dou)正常(chang),手摸南橋(qiao)芯(xin)片(pian)溫度正常(chang),南橋(qiao)cmos電(dian)路時鐘(zhong)波(bo)形正常(chang),測試南橋(qiao)芯(xin)片(pian)對地(di)
阻抗,沒(mei)有發(fa)現短路,此時根據(ju)以上(shang)檢測情況,基本判定(ding)南(nan)橋芯片工作正(zheng)常。
為了快(kuai)速判斷問題(ti),替換cpu芯片與內存條后(hou)故障(zhang)依舊。然后(hou)仔(zi)細(xi)觀察主(zhu)板線路沒有發現漏(lou)電
短(duan)路(lu)斷路(lu)現象.用示波器測試內存條與(yu)北橋之間相連的地址線與(yu)數(shu)據線波形與(yu)電壓情況,發現只
有開機瞬間有資料運行(xing),手摸北橋芯片(pian)溫(wen)度比較高,用萬用表測量北橋相連引腳電壓,發現有
幾根(gen)地址線電壓不穩定,根(gen)據經驗懷疑(yi)北(bei)橋芯片(pian)不良(liang)。更換北(bei)橋芯片(pian),然后測試pcu50連續工(gong)
作正常。
手動(dong)(dong)操(cao)作(zuo)840D面板的(de)(de)運行停止鍵,觀察變(bian)(bian)頻(pin)(pin)(pin)電(dian)(dian)(dian)機(ji)運行停止過(guo)(guo)(guo)程及變(bian)(bian)頻(pin)(pin)(pin)器的(de)(de)顯示窗(chuang),看是否(fou)有異(yi)常(chang)現(xian)象,如果(guo)啟動(dong)(dong)P停止電(dian)(dian)(dian)機(ji)過(guo)(guo)(guo)程中(zhong)變(bian)(bian)頻(pin)(pin)(pin)器出(chu)現(xian)過(guo)(guo)(guo)流(liu)保護動(dong)(dong)作(zuo),應重新設定(ding)(ding)加(jia)速(su)(su)(su)(su)(su)P減(jian)(jian)速(su)(su)(su)(su)(su)時間,電(dian)(dian)(dian)機(ji)在加(jia)、減(jian)(jian)速(su)(su)(su)(su)(su)時的(de)(de)加(jia)速(su)(su)(su)(su)(su)度取決于加(jia)速(su)(su)(su)(su)(su)轉(zhuan)(zhuan)矩(ju),而變(bian)(bian)頻(pin)(pin)(pin)器在啟、制(zhi)動(dong)(dong)過(guo)(guo)(guo)程中(zhong)的(de)(de)頻(pin)(pin)(pin)率(lv)(lv)變(bian)(bian)化率(lv)(lv)是用戶(hu)設定(ding)(ding)的(de)(de),若電(dian)(dian)(dian)機(ji)轉(zhuan)(zhuan)動(dong)(dong)慣量(liang)或(huo)電(dian)(dian)(dian)機(ji)負載變(bian)(bian)化,按(an)預(yu)先設定(ding)(ding)的(de)(de)頻(pin)(pin)(pin)率(lv)(lv)變(bian)(bian)化率(lv)(lv)升(sheng)速(su)(su)(su)(su)(su)或(huo)減(jian)(jian)速(su)(su)(su)(su)(su)時,有可(ke)能出(chu)現(xian)加(jia)速(su)(su)(su)(su)(su)轉(zhuan)(zhuan)矩(ju)不(bu)夠,從(cong)而造成電(dian)(dian)(dian)機(ji)失速(su)(su)(su)(su)(su),即電(dian)(dian)(dian)機(ji)轉(zhuan)(zhuan)速(su)(su)(su)(su)(su)與變(bian)(bian)頻(pin)(pin)(pin)器輸出(chu)頻(pin)(pin)(pin)率(lv)(lv)不(bu)協(xie)調,從(cong)而造成過(guo)(guo)(guo)電(dian)(dian)(dian)流(liu)或(huo)過(guo)(guo)(guo)電(dian)(dian)(dian)壓,因此(ci),需要根據電(dian)(dian)(dian)機(ji)轉(zhuan)(zhuan)動(dong)(dong)慣量(liang)和負載合理設定(ding)(ding)加(jia)、減(jian)(jian)速(su)(su)(su)(su)(su)時間,使變(bian)(bian)頻(pin)(pin)(pin)器的(de)(de)頻(pin)(pin)(pin)率(lv)(lv)變(bian)(bian)化率(lv)(lv)能與電(dian)(dian)(dian)機(ji)轉(zhuan)(zhuan)速(su)(su)(su)(su)(su)變(bian)(bian)化率(lv)(lv)相協(xie)調,檢查此(ci)項設定(ding)(ding)是否(fou)合理的(de)(de)方(fang)法是先按(an)經驗選(xuan)定(ding)(ding)加(jia)、減(jian)(jian)速(su)(su)(su)(su)(su)時間進(jin)行設定(ding)(ding),若在啟動(dong)(dong)過(guo)(guo)(guo)程中(zhong)出(chu)現(xian)過(guo)(guo)(guo)流(liu),則可(ke)適當延長加(jia)速(su)(su)(su)(su)(su)時間
德國西門子維修,西門子數控系統維修,西門子數控銑床,沖床,鏜床,臥床,立車,加工中心維修,快速修復:黑屏,白屏,花屏,死機,顯示豎條,通訊連不上,無背光,系統不斷重啟,面板顯示驅動未就緒,報編碼器故障,程序走一半,進入系統卡死不動維修,進不去用戶界面維修,無法進入系統程序維修,電源亮紅燈,西門子伺服電機抖動,不能帶負載.軸承更換,線圈更換,剎車壞,剎車失靈,編碼器更換等等
西門子(zi)數控(kong)系統維修,你為維修后,怕程序丟失擔(dan)心嗎?本公(gong)司拿到機器(qi)后,在檢(jian)測(ce)的(de)過程中,先幫客戶拷貝機器(qi)上面(mian)的(de)數據(ju),做備份,然后再進行修理。
6FC5210-0AD21-0AA0 SINUMERIK FM-NC/840D
6FC5210-0DA11-0AA0 SINUMERIK FM-NC/ 840D/DE
6FC5210-0DF02-0AA0 PCU 50, HMI
6FC5210-0DF03-0AA0 PCU 50
6FC5210-0DF04-0AA0 PCU 70, WIN
6FC5210-0DF20-0AA0 PCU 50 566MHZ,
6FC5210-0DF21-0AA0 PCU 50 566MHZ,
6FC5210-0DF21-2AA0 PCU 50 566MHZ,
6FC5210-0DF22-0AA0 PCU 50 1,2GHZ,
6FC5210-0DF22-1AA0 PCU50 1,2GHZ,
6FC5210-0DF22-2AA0 PCU50 1,2GHZ,
6FC5210-0DF23-2AA0 PCU 50 566MHZ,
6FC5210-0DF24-2AA0 PCU70 1,2GHZ,
6FC5210-0DF25-2AA0 PCU50 1,2GHZ
6FC5210-0DF31-2AA0 PCU50.3-C,
6FC5210-0DF33-2AA0 PCU50.3-P,
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