數控立車西門子直(zhi)流調(diao)速(su)器(qi)(qi)上電(dian)后(hou)一直(zhi)報警;上海恒稅電(dian)氣有(you)(you)(you)限公司,你的(de)選擇沒(mei)有(you)(you)(you)錯。公司自成立以(yi)來,長(chang)期銷售(shou)維修(xiu)西門子變頻器(qi)(qi)及(ji)伺(si)服驅(qu)動器(qi)(qi)的(de),觸摸(mo)屏,PLC,直(zhi)流調(diao)速(su)器(qi)(qi)等(deng),積(ji)累(lei)了豐富的(de)維修(xiu)經驗,對所維修(xiu)的(de)機(ji)(ji)器(qi)(qi)建立完善的(de)維修(xiu)檔案,所有(you)(you)(you)我們維修(xiu)的(de)機(ji)(ji)器(qi)(qi)我們都有(you)(you)(you)完善的(de)參數備份,確保我們維修(xiu)的(de)機(ji)(ji)器(qi)(qi)上機(ji)(ji)即能使用。
數控立車西門子直流調速器上電后一直報警;故障處理;
直(zhi)流調速器剛(gang)送來維修(xiu)(xiu)部的時候,全部機身都是(shi)灰(hui)塵,用戶是(shi)這臺機器是(shi)用在紡織機上的,現場灰(hui)塵太(tai)多,平時工作任務緊技術人員(yuan)沒有認真保養,我們用吸塵器將灰(hui)塵打掃干(gan)凈后已(yi)經聞到(dao)一股焦味,用戶說他們自(zi)己的技術人員(yuan)以前維修(xiu)(xiu)過一次。
我打開(kai)(kai)蓋看(kan)了一(yi)下,電(dian)(dian)(dian)(dian)(dian)源(yuan)板的(de)(de)保(bao)險還是(shi)好的(de)(de),看(kan)來情(qing)況沒有(you)(you)太(tai)嚴重。接通(tong)電(dian)(dian)(dian)(dian)(dian)源(yuan)板供電(dian)(dian)(dian)(dian)(dian)后(hou),顯示屏有(you)(you)一(yi)點(dian)點(dian)暗光,數字都看(kan)不(bu)清楚,看(kan)來電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)壓已(yi)(yi)經*不(bu)正(zheng)常。開(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)板板測量輸出(chu)正(zheng)負15伏(fu)(fu)只(zhi) 而伏(fu)(fu),24伏(fu)(fu)只(zhi)有(you)(you)16伏(fu)(fu),初(chu)級(ji)(ji)電(dian)(dian)(dian)(dian)(dian)源(yuan)芯片(pian)為UC3844,測量期(qi)8腳外的(de)(de)電(dian)(dian)(dian)(dian)(dian)阻已(yi)(yi)經燒斷開(kai)(kai),更(geng)換3844后(hou)測量輸出(chu)24伏(fu)(fu)電(dian)(dian)(dian)(dian)(dian)壓高達38伏(fu)(fu),看(kan)來輸出(chu)級(ji)(ji)的(de)(de)取樣電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)或(huo)者反饋(kui)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)有(you)(you)問(wen)(wen)題(ti),通(tong)過仔(zi)細(xi)的(de)(de)檢(jian)測查到(dao)PC431已(yi)(yi)經損壞,更(geng)換后(hou)測量電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)電(dian)(dian)(dian)(dian)(dian)壓正(zheng)常,整機(ji)送電(dian)(dian)(dian)(dian)(dian)測試沒有(you)(you)問(wen)(wen)題(ti)。UC2844/3844系列(lie)脈寬調制芯片(pian)已(yi)(yi)經廣泛應于于開(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中,特別是(shi)工(gong)業級(ji)(ji)產品像直(zhi)流調速器和交流變頻器,所以(yi)作為專業維(wei)(wei)修技術(shu)人員,這部分電(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)維(wei)(wei)修技術(shu)是(shi)必(bi)須要重點(dian)掌(zhang)握(wo)的(de)(de)。以(yi)下是(shi)芯片(pian)資(zi)料介(jie)紹:
UC3844是(shi)高性(xing)能(neng)(neng)固定頻(pin)率(lv)電流(liu)模(mo)式控制器(qi)(qi)專為離線(xian)和直流(liu)至直流(liu)變換器(qi)(qi)應用而設計,為設計人員提供只需最(zui)少外部元件(jian)就(jiu)能(neng)(neng)獲(huo)得成本效(xiao)益高的解決方案。這些集成電路具(ju)有可微調(diao)的振(zhen)蕩器(qi)(qi)、能(neng)(neng)進行精確的占空比(bi)控制、溫度(du)補償的參考、高增益誤差放大器(qi)(qi)。電流(liu)取樣比(bi)較(jiao)器(qi)(qi)和大電流(liu)圖(tu)騰柱(zhu)式輸出,是(shi)驅動功率(lv)MOSFET的理想(xiang)器(qi)(qi)件(jian)。
其它的(de)保護特性包括輸(shu)入(ru)和參考欠壓鎖(suo)(suo)定(ding),各(ge)有滯后、逐周電流(liu)限制(zhi)、可編程輸(shu)出(chu)靜區時間和單個脈沖測量鎖(suo)(suo)存。這些器(qi)件(jian)可提供8腳(jiao)雙列直(zhi)插塑(su)料(liao)封裝和14腳(jiao)塑(su)料(liao)表面(mian)貼(tie)裝封裝(SO-14)。SO-14封裝的(de)圖騰柱式(shi)輸(shu)出(chu)級有單獨(du)的(de)電源(yuan)和接地管腳(jiao)。是專門設(she)計用于(yu)離線和直(zhi)流(liu)到(dao)直(zhi)流(liu)交(jiao)換器(qi)應用的(de)高性能(neng)(neng),固定(ding)頻率,電流(liu)模式(shi)控(kong)制(zhi)器(qi)。為設(she)計者提供使用最少外部元件(jian)的(de)高性能(neng)(neng)價格(ge)比的(de)解決方(fang)案。
數控立車西門子直流調速器上電后一直報警;故障處理
上電(dian)跳閘(zha),運行炸可(ke)控(kong)(kong)硅,無法復位,故(gu)障消不掉,模(mo)塊壞,IGBT燒(shao),通(tong)電(dian)燒(shao)保(bao)險,無勵(li)(li)磁電(dian)壓,報勵(li)(li)磁故(gu)障,勵(li)(li)磁過流(liu),速(su)(su)度不可(ke)控(kong)(kong)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),超速(su)(su)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),帶負載(zai)報故(gu)障維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),冷卻(que)風(feng)機壞維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),散熱風(feng)扇(shan)壞維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),直流(liu)調(diao)速(su)(su)裝置風(feng)扇(shan)銷(xiao)(xiao)售(shou)(shou)(shou),勵(li)(li)磁板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),電(dian)源板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),可(ke)控(kong)(kong)硅銷(xiao)(xiao)售(shou)(shou)(shou),晶閘(zha)管銷(xiao)(xiao)售(shou)(shou)(shou),熔斷(duan)器(qi)銷(xiao)(xiao)售(shou)(shou)(shou),主(zhu)板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),面板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),擴展板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),CBP2板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),通(tong)訊板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),脈沖觸(chu)發板(ban)(ban)銷(xiao)(xiao)售(shou)(shou)(shou),轉(zhuan)速(su)(su)度不穩定(ding)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),可(ke)控(kong)(kong)硅晶閘(zha)管燒(shao)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),直流(liu)調(diao)速(su)(su)裝置無顯示維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),A018,A015,運轉(zhuan)速(su)(su)度不連(lian)貫維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),高(gao)速(su)(su)不穩定(ding)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),低(di)速(su)(su)不穩定(ding)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),啟動(dong)合閘(zha)跳保(bao)險維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),運轉(zhuan)不出力(li)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),控(kong)(kong)制板(ban)(ban)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)等(deng)等(deng)。常(chang)見(jian)故(gu)障報警(jing):F001,F004,F005,F067,F006 ,F007 ,F030 ,F038,F040 F042,F046,F040,F050,F052,F068,A031,A035等(deng)等(deng)報警(jing)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)。
西門子直(zhi)流調速(su)器上電后一直(zhi)報警;
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