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龍門(men)銑西(xi)門(men)子控(kong)制器(qi)壞(系統修復)故(gu)障(zhang)處(chu)理(li):電(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)(de)(de)(de)穩壓環節是(shi)起(qi)作用(yong)的(de)(de)(de)(de)(de)(de),故(gu)障(zhang)根源在于+8V電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)路(lu)(lu)本身,或(huo)負載(zai)電(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)(de)(de)(de)問題(過載(zai))。檢測(ce)濾波電(dian)(dian)(dian)(dian)容(rong)CuF16V時),發覺該電(dian)(dian)(dian)(dian)容(rong)引(yin)腳(jiao)松動(dong),似乎有虛焊(han)故(gu)障(zhang)。檢查,果然如此。將電(dian)(dian)(dian)(dian)容(rong)從線路(lu)(lu)板(ban)(ban)(ban)上(shang)焊(han)下。其(qi)中一只引(yin)腳(jiao)有氧化現象。處(chu)理(li)后進行焊(han)接(jie),50W電(dian)(dian)(dian)(dian)烙換(huan)頭一接(jie)觸(chu)到焊(han)盤(pan)上(shang),就顯(xian)得“力不從心(xin)”,不能(neng)很好的(de)(de)(de)(de)(de)(de)溶化焊(han)錫。該引(yin)腳(jiao)焊(han)盤(pan)與(yu)大(da)面(mian)積地(di)銅(tong)箔層(ceng)相連,有很強(qiang)的(de)(de)(de)(de)(de)(de)散熱能(neng)力,而C41電(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)(de)(de)(de)引(yin)腳(jiao)長度(du)又偏短(duan),幾(ji)乎與(yu)板(ban)(ban)(ban)面(mian)持平,費了好大(da)勁兒,才焊(han)接(jie)完(wan)畢。又由此猜想到,E-2*,可(ke)能(neng)是(shi)該型變(bian)頻器(qi)的(de)(de)(de)(de)(de)(de)通(tong)病:焊(han)盤(pan)有較強(qiang)的(de)(de)(de)(de)(de)(de)散熱能(neng)力,電(dian)(dian)(dian)(dian)容(rong)引(yin)腳(jiao)又“要(yao)命”地(di)短(duan)。線路(lu)(lu)板(ban)(ban)(ban)在“波峰(feng)焊(han)”或(huo)其(qi)它(ta)什么焊(han)時,其(qi)它(ta)小(xiao)體種貼片元件。凌(ling)科自動(dong)化其(qi)實(shi)是(shi)反映了MCU芯(xin)片的(de)(de)(de)(de)(de)(de)供電(dian)(dian)(dian)(dian)條(tiao)件不滿足,無(wu)法實(shi)施(shi)與(yu)面(mian)板(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)正(zheng)常(chang)通(tong)信(xin)任務(wu),并非是(shi)通(tong)訊(xun)電(dian)(dian)(dian)(dian)路(lu)(lu)本身有了故(gu)障(zhang)!回過頭來看(kan),主板(ban)(ban)(ban)MCU與(yu)面(mian)板(ban)(ban)(ban)MCU的(de)(de)(de)(de)(de)(de)正(zheng)常(chang)通(tong)訊(xun),主板(ban)(ban)(ban)MCU電(dian)(dian)(dian)(dian)路(lu)(lu)和面(mian)板(ban)(ban)(ban)MCU電(dian)(dian)(dian)(dian)路(lu)(lu)均處(chu)于正(zheng)常(chang)工作狀態(tai);相關通(tong)信(xin)電(dian)(dian)(dian)(dian)路(lu)(lu)(如RS385通(tong)信(xin)模塊)正(zheng)常(chang);主板(ban)(ban)(ban)與(yu)面(mian)板(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)通(tong)訊(xun)電(dian)(dian)(dian)(dian)纜連接(jie)正(zheng)常(chang),無(wu)斷線故(gu)障(zhang);主板(ban)(ban)(ban)MCU電(dian)(dian)(dian)(dian)路(lu)(lu)和面(mian)板(ban)(ban)(ban)MCU電(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)(de)(de)(de)供電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)源正(zheng)常(chang),這(zhe)也(ye)是(shi)保障(zhang)二(er)者通(tong)信(xin)正(zheng)常(chang)的(de)(de)(de)(de)(de)(de)前提條(tiao)件。
龍(long)門(men)(men)銑(xian)西門(men)(men)子控制(zhi)器(qi)壞常(chang)見故(gu)障:炸可控硅,跳閘(zha),無顯示,模塊炸,開不(bu)(bu)(bu)了機維修,變(bian)頻器(qi)無輸出(chu),無電(dian)壓(ya)(ya)(ya),變(bian)頻器(qi)冒煙,變(bian)頻器(qi)異響,變(bian)頻器(qi)報警(jing),通(tong)訊(xun)不(bu)(bu)(bu)上,帶不(bu)(bu)(bu)動負(fu)載,電(dian)機不(bu)(bu)(bu)轉(zhuan),電(dian)機抖動,面板顯示’E’面板無顯示,電(dian)壓(ya)(ya)(ya)輸出(chu)不(bu)(bu)(bu)平衡,運(yun)行幾(ji)分鐘報過流.缺相、過流、過壓(ya)(ya)(ya)、欠壓(ya)(ya)(ya)、過熱、過載、接地(di),報錯。
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