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西門子840D數控滾齒機黑屏/白屏修理診斷,西門(men)子數(shu)控(kong)系統(tong)(tong)維(wei)修(xiu)(xiu)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)出(chu)現的(de)(de)(de)(de)或然性(xing),分(fen)為系統(tong)(tong)性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)和(he)隨(sui)機性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)。系統(tong)(tong)性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)是指(zhi)只要(yao)滿足一定(ding)(ding)的(de)(de)(de)(de)條件(jian)則一定(ding)(ding)會產生(sheng)的(de)(de)(de)(de)確(que)定(ding)(ding)的(de)(de)(de)(de)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang);而隨(sui)機性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)是指(zhi)在相同(tong)的(de)(de)(de)(de)條件(jian)下(xia)偶爾發生(sheng)的(de)(de)(de)(de)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang),這(zhe)類故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)的(de)(de)(de)(de)分(fen)析(xi)較為困難,通常多與機床機械結構的(de)(de)(de)(de)局部(bu)松動錯位、部(bu)分(fen)電(dian)(dian)氣工(gong)件(jian)特性(xing)漂移(yi)或可(ke)(ke)(ke)靠(kao)性(xing)降低、電(dian)(dian)氣裝(zhuang)置內(nei)部(bu)溫(wen)度過(guo)高(gao)有關。此類故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)的(de)(de)(de)(de)分(fen)析(xi)需(xu)經(jing)反復試(shi)驗、綜(zong)合判斷(duan)才(cai)可(ke)(ke)(ke)能排(pai)(pai)除(chu)。西門(men)子數(shu)控(kong)系統(tong)(tong)維(wei)修(xiu)(xiu)從(cong)時域維(wei)修(xiu)(xiu)趨(qu)向(xiang)于數(shu)據域維(wei)修(xiu)(xiu),新出(chu)的(de)(de)(de)(de)數(shu)控(kong)系統(tong)(tong)的(de)(de)(de)(de)傳輸(shu)基本上已(yi)經(jing)開(kai)始總線為主,網絡化控(kong)制,靠(kao)以往的(de)(de)(de)(de)那(nei)種頭痛(tong)醫頭,腳痛(tong)醫腳的(de)(de)(de)(de)傳統(tong)(tong)方法是無法診斷(duan)這(zhe)類故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)的(de)(de)(de)(de)了,數(shu)控(kong)系統(tong)(tong)維(wei)修(xiu)(xiu)也必須(xu)借助(zhu)網絡診斷(duan)工(gong)具(ju)來分(fen)析(xi)整(zheng)體系統(tong)(tong)的(de)(de)(de)(de)數(shu)據才(cai)可(ke)(ke)(ke)能找到故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)點,這(zhe)些對數(shu)控(kong)維(wei)修(xiu)(xiu)工(gong)程師的(de)(de)(de)(de)技(ji)術都是一種考驗和(he)挑戰。以故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)發生(sheng)的(de)(de)(de)(de)部(bu)位,分(fen)為硬件(jian)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)和(he)軟(ruan)(ruan)件(jian)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)。硬件(jian)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)是指(zhi)電(dian)(dian)子、電(dian)(dian)器件(jian)、印制電(dian)(dian)路板、電(dian)(dian)線電(dian)(dian)纜、接插件(jian)等的(de)(de)(de)(de)不正常狀(zhuang)態甚(shen)至(zhi)損壞,這(zhe)是需(xu)要(yao)修(xiu)(xiu)理甚(shen)至(zhi)更換才(cai)可(ke)(ke)(ke)排(pai)(pai)除(chu)的(de)(de)(de)(de)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)。而軟(ruan)(ruan)件(jian)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)一般是指(zhi)PLC邏輯控(kong)制程序中產生(sheng)的(de)(de)(de)(de)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang),需(xu)要(yao)輸(shu)入或修(xiu)(xiu)改某些數(shu)據甚(shen)至(zhi)修(xiu)(xiu)改PLC程序方可(ke)(ke)(ke)排(pai)(pai)除(chu)的(de)(de)(de)(de)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)。零件(jian)加工(gong)程序故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)也屬(shu)于軟(ruan)(ruan)件(jian)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)。嚴重(zhong)的(de)(de)(de)(de)軟(ruan)(ruan)件(jian)故(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)則是數(shu)控(kong)系統(tong)(tong)軟(ruan)(ruan)件(jian)的(de)(de)(de)(de)缺(que)損甚(shen)至(zhi)丟(diu)失,這(zhe)就只有與生(sheng)產廠(chang)商或其服(fu)務機構聯系解決了。
西門子PCU50-840D系統常見故障:
開機黑屏、白屏;啟動不正常;死機無反應;供電不顯示;無法正常進入加工界面;H1、H2 的7段碼顯示“28”“69”“88”等。
故障現象:
840D數控系統機床,的PCU50.3重新啟動時,計算機不能正常啟動,上電后數碼管顯示88 ,兩燈同時顯示紅色
故障分析:
PCU無法啟動故障,說明內部調用時出現了問題。
故障排除方法:
1.重新啟動試機;
2.檢查外圍接口線路是否有松動或接觸不良;
3.檢查供電單元,正常輸入電壓是+24vdc;
4.打開PCU50.3單元,將PCU 后蓋打開,檢查內存條是否插牢靠,扁平電纜插接是否可靠;
5.如果仍未檢查出故障,檢查西門子840D 的軟件系統HMI advanced,可以將以前備份好的系統備份重新鏡像到一個新的硬盤上做實驗。
6.后可以判斷PCU50.3的主板損壞(huai),此時(shi)需要廠(chang)家或(huo)專(zhuan)業維(wei)修(xiu)公司(si)進行維(wei)修(xiu)。
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