動(dong)梁(liang)式龍(long)門(men)加(jia)工(gong)中(zhong)心的(de)電(dian)氣系(xi)統(tong)是設備精(jing)準(zhun)運行(xing)的 “神(shen)經(jing)中(zhong)樞”,其(qi)故(gu)障(zhang)可能導(dao)致停(ting)機(ji),影響(xiang)生產效率。這(zhe)類(lei)故障的(de)診斷需(xu)結(jie)合(he)系(xi)統(tong)架構,從電(dian)源(yuan)輸(shu)入到(dao)執(zhi)行(xing)部件(jian)逐步排查,采(cai)取(qu)針對性(xing)修(xiu)復(fu)策略。
電(dian)源(yuan)系(xi)統(tong)故障是電(dian)氣故障(zhang)的(de)多發(fa)點。三(san)相(xiang)電(dian)源(yuan)的缺(que)相或(huo)電(dian)壓(ya)不(bu)平衡(heng)會(hui)導(dao)致(zhi)伺(si)服(fu)電(dian)機(ji)運行(xing)異常(chang),表(biao)現(xian)為主(zhu)軸異響(xiang)或(huo)進(jin)給卡(ka)頓(dun)。診斷時(shi)可通過萬用表(biao)檢(jian)測(ce)各相(xiang)電(dian)壓(ya),觀(guan)察(cha)是否(fou)存在明顯偏差,檢(jian)查(zha)空(kong)氣開關、接(jie)觸器(qi)的(de)觸點是否(fou)燒(shao)蝕,燒(shao)蝕嚴重(zhong)的需(xu)更(geng)換觸點或(huo)整(zheng)體(ti)部件,同(tong)時(shi)清(qing)理(li)觸點表(biao)面(mian)的氧化層,確保(bao)導電(dian)良好(hao)。電(dian)源(yuan)濾波(bo)裝(zhuang)置(zhi)若失(shi)效,會(hui)使(shi)電(dian)網中(zhong)的高(gao)頻(pin)幹擾侵入控(kong)制(zhi)系(xi)統(tong),導致程(cheng)序(xu)運行(xing)紊(wen)亂(luan),可檢查濾波(bo)器是否(fou)有過熱(re)痕跡,更(geng)換損壞的濾波(bo)電(dian)容,必(bi)要時(shi)增加(jia)獨(du)立(li)的(de)電(dian)源(yuan)隔離(li)變(bian)壓(ya)器,減(jian)少幹(gan)擾影(ying)響(xiang)。此(ci)外(wai),接(jie)地(di)不(bu)良(liang)會(hui)引(yin)發(fa)信(xin)號(hao)紊(wen)亂(luan),需(xu)檢(jian)查(zha)接(jie)地(di)電(dian)阻是否(fou)符(fu)合(he)要求,確(que)保(bao)接地(di)線路連接(jie)牢固(gu),避免(mian)與(yu)動(dong)力(li)接(jie)地(di)混(hun)用。
數(shu)控(kong)系(xi)統(tong)的故障(zhang)常表(biao)現(xian)為操作異常(chang)或(huo)報(bao)警。系(xi)統(tong)啟動時(shi)若(ruo)出現黑(hei)屏(ping)或(huo)無(wu)法進(jin)入操作界面(mian),可能是主(zhu)板電(dian)池電(dian)量耗(hao)盡,導(dao)致程(cheng)序(xu)丟失(shi)或參數(shu)錯亂(luan),更(geng)換同型號電(dian)池後(hou)重(zhong)新加(jia)載參數(shu)即(ji)可恢復。操作面板按鍵失靈(ling)多(duo)因觸點氧化或線路接觸不(bu)良(liang),拆開(kai)面板後用酒精(jing)清(qing)潔(jie)觸點,檢(jian)查(zha)按鍵與主(zhu)板的連接(jie)線是否(fou)松(song)動,重(zhong)新插拔或(huo)更(geng)換排線。系(xi)統(tong)報(bao)警代(dai)碼提示的故(gu)障(zhang)需(xu)結(jie)合(he)手(shou)冊解讀,如(ru) “伺服(fu)報(bao)警” 可能是驅動(dong)單元故(gu)障(zhang),“超程(cheng)報(bao)警” 則(ze)需(xu)檢(jian)查(zha)限位(wei)開關是否(fou)被觸發(fa)或線路斷開,手(shou)動(dong)釋(shi)放超程後(hou)復(fu)位(wei)系(xi)統(tong),修(xiu)復(fu)限位(wei)開關線路。
驅動(dong)系(xi)統(tong)故障直(zhi)接影(ying)響(xiang)軸(zhou)運(yun)動(dong)精(jing)度。伺服(fu)驅動(dong)器若(ruo)出現過載報(bao)警,可能是電(dian)機(ji)負載過大(da)或(huo)驅動(dong)器參數(shu)設置(zhi)不(bu)當(dang),檢(jian)查(zha)機(ji)械傳動部(bu)分(fen)是否(fou)卡(ka)滯(zhi),調整(zheng)驅動(dong)器的(de)過載保(bao)護參數(shu),必(bi)要時(shi)重(zhong)新校準(zhun)電(dian)機(ji)與驅動(dong)器的(de)匹配參數(shu)。伺(si)服(fu)電(dian)機(ji)運行(xing)時(shi)的(de)異響(xiang)或(huo)振(zhen)動,可能是編碼器信(xin)號(hao)異常(chang),檢(jian)查編碼器與(yu)電(dian)機(ji)的連接(jie)線纜(lan)是否(fou)破(po)損,插頭(tou)是否(fou)松(song)動,對損壞(huai)的(de)線纜(lan)進(jin)行(xing)更(geng)換,確保(bao)信(xin)號(hao)傳輸(shu)穩(wen)定。驅動(dong)器的(de)散(san)熱風(feng)扇若(ruo)停(ting)轉,會(hui)導(dao)致(zhi)內(nei)部元件(jian)過熱(re),觀(guan)察(cha)風扇是否(fou)積塵(chen)過多(duo)或(huo)軸承卡(ka)滯(zhi),清(qing)理(li)灰(hui)塵(chen)或更(geng)換風扇,保(bao)證散(san)熱通(tong)暢。
輔助電(dian)氣部件(jian)故(gu)障易被(bei)忽(hu)視(shi)卻影響(xiang)顯著。行(xing)程開(kai)關、接(jie)近(jin)開關等檢測(ce)元件(jian)失(shi)靈會(hui)導(dao)致(zhi)設備動作不(bu)到(dao)位(wei),檢查(zha)開(kai)關的(de)感(gan)應距離(li)是否(fou)合適(shi),觸點是否(fou)導通(tong)正常,調整(zheng)安(an)裝(zhuang)位(wei)置(zhi)或更(geng)換新的檢測(ce)元件(jian)。繼(ji)電(dian)器、電(dian)磁閥(fa)等執(zhi)行(xing)元件(jian)的(de)線圈(quan)燒(shao)蝕或觸點粘連,會(hui)使(shi)液壓(ya)、氣動系(xi)統(tong)動作異常(chang),用萬用表(biao)檢(jian)測(ce)線圈(quan)阻(zu)值,更(geng)換損壞的元件(jian),同(tong)時(shi)檢(jian)查(zha)相(xiang)關管路的壓(ya)力(li)是否(fou)正常(chang),避免(mian)因負載過大(da)導(dao)致元件(jian)再(zai)次損(sun)壞。此(ci)外(wai),線纜(lan)的老化、磨損也(ye)會(hui)引(yin)發(fa)短(duan)路或斷路,需(xu)定(ding)期(qi)檢(jian)查拖鏈(lian)內的線纜(lan)狀(zhuang)態(tai),對破(po)損處進(jin)行(xing)絕(jue)緣(yuan)處理(li),嚴(yan)重(zhong)的則整(zheng)體(ti)更(geng)換。
電(dian)氣故障(zhang)的(de)修(xiu)復(fu)需(xu)遵(zun)循(xun) “先(xian)觀(guan)察(cha)後操作、先簡單(dan)後(hou)復雜” 的(de)原則,借助萬用表(biao)、示(shi)波器等工具輔助檢測(ce),避免(mian)盲目(mu)拆解(jie)。日常(chang)維護(hu)中(zhong),定期(qi)清(qing)潔(jie)電(dian)氣櫃(gui)內的(de)灰(hui)塵(chen),檢查(zha)接線端(duan)子(zi)的緊(jin)固狀(zhuang)態(tai),可有效減少故(gu)障發(fa)生,確保(bao)設備穩(wen)定運行(xing)。