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鋼鐵廠西門子6RA70調速器啟動報警F005維修
西(xi)門(men)子(zi)6ra70直流調速(su)(su)器報(bao)一(yi)下故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu):F001電(dian)(dian)(dian)子(zi)板(ban)(ban)電(dian)(dian)(dian)源故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu) F004 電(dian)(dian)(dian)樞(shu)電(dian)(dian)(dian)源板(ban)(ban)缺相故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu) F005勵磁(ci)板(ban)(ban)故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu) F006 欠電(dian)(dian)(dian)壓(ya)故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),F007 過(guo)電(dian)(dian)(dian)壓(ya)故障(zhang)(zhang) 維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu) F008 F009 進線電(dian)(dian)(dian)源頻(pin)率故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu) F011 GSST1 電(dian)(dian)(dian)報(bao)故障(zhang)(zhang)三相不(bu)平衡維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),無輸出維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),開(kai)機(ji)(ji)無顯示(shi)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),啟動(dong)無勵磁(ci)電(dian)(dian)(dian)壓(ya)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),上電(dian)(dian)(dian)跳(tiao)閘維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),通電(dian)(dian)(dian)燒可(ke)控硅(gui)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),運行模塊(kuai)炸(zha),速(su)(su)度(du)不(bu)可(ke)控維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),主(zhu)板(ban)(ban)故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),控制板(ban)(ban)壞維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),轉(zhuan)速(su)(su)不(bu)正常維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),開(kai)不(bu)了機(ji)(ji)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),過(guo)流,過(guo)壓(ya),過(guo)熱,速(su)(su)度(du)不(bu)穩, 電(dian)(dian)(dian)機(ji)(ji)抖動(dong),低速(su)(su)不(bu)穩,高(gao)速(su)(su)飛車維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu),電(dian)(dian)(dian)機(ji)(ji)不(bu)轉(zhuan)等故障(zhang)(zhang)維(wei)修(xiu)(xiu)(xiu)(xiu)(xiu)。
變(bian)頻器大(da)體上可分為兩類:高壓(ya)變(bian)頻器和低壓(ya)變(bian)頻器。
從(cong)用途來(lai)講(jiang)(jiang),適用對象不一樣,高(gao)壓(ya)電機從(cong)調速原理(li)來(lai)講(jiang)(jiang),二(er)者(zhe)都(dou)是一樣的。從(cong)拓撲結構(gou)看,二(er)者(zhe)差別很大,主要是因為(wei)目前廣泛應(ying)用的IGBT模(mo)塊耐壓(ya)不足(zu)造成的。高(gao)壓(ya)變頻器(qi)由(you)于電壓(ya)高(gao),對驅動電路(lu)等的干擾也大,通常都(dou)采(cai)用的光纖進行(xing)隔(ge)離。
鋼鐵廠西門子6RA70調速器啟動報警F005維修為什么變(bian)頻器的(de)輸出電(dian)壓與頻率成(cheng)比例(li)的(de)改變(bian)?
異(yi)步電(dian)(dian)動機(ji)(ji)的(de)(de)(de)(de)轉矩是電(dian)(dian)機(ji)(ji)的(de)(de)(de)(de)磁(ci)(ci)通(tong)與轉子內流過的(de)(de)(de)(de)電(dian)(dian)流之間相互作用而產(chan)生(sheng)的(de)(de)(de)(de),在額定頻(pin)率(lv)下(xia),如果電(dian)(dian)壓只降(jiang)低(di)頻(pin)率(lv),那(nei)么(me)磁(ci)(ci)通(tong)就(jiu)過大(da),磁(ci)(ci)回路飽和(he),電(dian)(dian)機(ji)(ji)電(dian)(dian)流增大(da),嚴重時將燒毀(hui)電(dian)(dian)機(ji)(ji)。因此,頻(pin)率(lv)與電(dian)(dian)壓要成(cheng)比例地改(gai)(gai)變(bian)(bian),即改(gai)(gai)變(bian)(bian)頻(pin)率(lv)的(de)(de)(de)(de)同(tong)時控制(zhi)變(bian)(bian)頻(pin)器的(de)(de)(de)(de)輸出電(dian)(dian)壓,使(shi)電(dian)(dian)動機(ji)(ji)的(de)(de)(de)(de)磁(ci)(ci)通(tong)保持(chi)定值,避免磁(ci)(ci)飽和(he)現象(xiang)的(de)(de)(de)(de)產(chan)生(sheng)。這就(jiu)是VVVF的(de)(de)(de)(de)定義。