西門子直流調速器6RA7087上電無法啟動修理

 西門(men)子6ra70直(zhi)流調速(su)(su)(su)器報(bao)一(yi)下故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu)：F001電(dian)(dian)子板(ban)(ban)電(dian)(dian)源故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu) F004 電(dian)(dian)樞電(dian)(dian)源板(ban)(ban)缺相故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu)  F005勵(li)磁(ci)(ci)板(ban)(ban)故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu)   F006 欠電(dian)(dian)壓(ya)故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu),F007 過電(dian)(dian)壓(ya)故(gu)(gu)障(zhang)(zhang)(zhang) 維(wei)(wei)(wei)修(xiu)(xiu) F008 F009 進線電(dian)(dian)源頻率故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu)  F011 GSST1 電(dian)(dian)報(bao)故(gu)(gu)障(zhang)(zhang)(zhang)三相不(bu)平衡(heng)維(wei)(wei)(wei)修(xiu)(xiu)，無輸出(chu)維(wei)(wei)(wei)修(xiu)(xiu)，開機無顯示維(wei)(wei)(wei)修(xiu)(xiu)，啟動無勵(li)磁(ci)(ci)電(dian)(dian)壓(ya)維(wei)(wei)(wei)修(xiu)(xiu)，上電(dian)(dian)跳(tiao)閘維(wei)(wei)(wei)修(xiu)(xiu)，通電(dian)(dian)燒可控硅維(wei)(wei)(wei)修(xiu)(xiu)，運(yun)行模塊炸，速(su)(su)(su)度不(bu)可控維(wei)(wei)(wei)修(xiu)(xiu),主板(ban)(ban)故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu)，控制板(ban)(ban)壞維(wei)(wei)(wei)修(xiu)(xiu)，轉速(su)(su)(su)不(bu)正常維(wei)(wei)(wei)修(xiu)(xiu)，開不(bu)了機維(wei)(wei)(wei)修(xiu)(xiu)，過流，過壓(ya)，過熱，速(su)(su)(su)度不(bu)穩(wen), 電(dian)(dian)機抖動，低速(su)(su)(su)不(bu)穩(wen)，高速(su)(su)(su)飛車維(wei)(wei)(wei)修(xiu)(xiu)，電(dian)(dian)機不(bu)轉等(deng)故(gu)(gu)障(zhang)(zhang)(zhang)維(wei)(wei)(wei)修(xiu)(xiu)。

 變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)的分(fen)(fen)(fen)類方法有多(duo)種，按(an)照主電(dian)路工作方式(shi)分(fen)(fen)(fen)類，可(ke)以分(fen)(fen)(fen)為電(dian)壓(ya)型(xing)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)和(he)(he)電(dian)流型(xing)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi);按(an)照開關方式(shi)分(fen)(fen)(fen)類，可(ke)以分(fen)(fen)(fen)為PAM控制(zhi)(zhi)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)、PWM控制(zhi)(zhi)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)和(he)(he)高載(zai)頻(pin)(pin)PWM控制(zhi)(zhi)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi);按(an)照工作原理分(fen)(fen)(fen)類，可(ke)以分(fen)(fen)(fen)為V/f控制(zhi)(zhi)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)、轉差頻(pin)(pin)率控制(zhi)(zhi)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)和(he)(he)矢量(liang)控制(zhi)(zhi)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)等;在變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)修理中，按(an)照用(yong)(yong)途(tu)分(fen)(fen)(fen)類，可(ke)以分(fen)(fen)(fen)為通用(yong)(yong)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)、高性(xing)能變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)、高頻(pin)(pin)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)、單相(xiang)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)和(he)(he)三相(xiang)變(bian)頻(pin)(pin)器(qi)(qi)(qi)(qi)等。
通用變頻(pin)器(qi)維修案(an)例——通過面(mian)板顯示故障來維修變頻(pin)器(qi)？
例一(yi)(yi)：一(yi)(yi)臺(tai)1.5KW
故障現象：顯示OCU（過流）
故障分析：給變頻器(qi)通入直流測(ce)試電(dian)源后(hou)，顯(xian)示過流*CU，（這是(shi)我們公司(si)變頻器(qi)比較常見的故障），認為是(shi)電(dian)流檢(jian)測(ce)保護電(dian)路(lu)有問題，對電(dian)流保護檢(jian)測(ce)電(dian)路(lu)進(jin)行全(quan)面的測(ce)量(liang)，并沒有西門子直流調速器6RA7087上電無法啟動修理發現(xian)(xian)任何不正(zheng)常(chang)的現(xian)(xian)象。再次通電(dian)(dian)還(huan)是(shi)顯(xian)示這樣(yang)的故障，奇怪的是(shi)這個故障可(ke)以復位，這個現(xian)(xian)象提醒了我，根據經驗分析，更(geng)換驅動電(dian)(dian)路(lu)內(nei)的濾波(bo)電(dian)(dian)容(rong)(rong)應該會有所收獲。因為(wei)(wei)平時修(xiu)理舊變(bian)頻器時，都必須將驅動電(dian)(dian)路(lu)的濾波(bo)電(dian)(dian)容(rong)(rong)（一般是(shi)貼片(pian)電(dian)(dian)容(rong)(rong)）更(geng)換新電(dian)(dian)容(rong)(rong)，因為(wei)(wei)這些電(dian)(dian)容(rong)(rong)容(rong)(rong)易老化。把全部(bu)的電(dian)(dian)容(rong)(rong)更(geng)換下(xia)后，上電(dian)(dian)運行正(zheng)常(chang)。
故障原因：這(zhe)臺機器主要是由于驅(qu)動電路的濾波電容器老化引起OCU故障。
故(gu)障處理：更換驅動(dong)電(dian)路(lu)的所有濾波電(dian)容，上電(dian)變頻器(qi)恢復正常。