更新(xin)時間:2019-11-05
研華工控機(ji)維修六路驅(qu)動電(dian)路與六路逆變橋(qiao)臂對應。在給驅(qu)動板送電(dian)后,可以(yi)在相應的(de)地方量到對應電(dian)壓(ya)值。由于變頻(pin)器(qi)內部(bu)是(shi)左右的(de)直流電(dian),我們利用兩只變壓(ya)器(qi)的(de)整流橋(qiao)了驅(qu)動電(dian)源(yuan),確(que)定驅(qu)動板的(de)正負極后,接上電(dian)源(yuan)。
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研華工(gong)(gong)控(kong)(kong)機(ji)(ji)維修(xiu)轉(zhuan)距(ju)(ju)提(ti)升(sheng)在控(kong)(kong)制電(dian)(dian)(dian)(dian)流(liu)的(de)(de)(de)同時(shi)使電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)處(chu)于運(yun)行狀態,在選擇手動(dong)(dong)(dong)(dong)轉(zhuan)距(ju)(ju)提(ti)升(sheng)時(shi),要(yao)(yao)結合實(shi)(shi)際情況來設定(ding)轉(zhuan)距(ju)(ju)提(ti)升(sheng)值。改(gai)善低頻(pin)(pin)轉(zhuan)距(ju)(ju)脈(mo)動(dong)(dong)(dong)(dong)變頻(pin)(pin)器構(gou)成(cheng)的(de)(de)(de)交流(liu)調(diao)速(su)系(xi)(xi)統(tong)的(de)(de)(de)低頻(pin)(pin)轉(zhuan)距(ju)(ju)脈(mo)動(dong)(dong)(dong)(dong)直接影響系(xi)(xi)統(tong)動(dong)(dong)(dong)(dong)態特性不論是(shi)變頻(pin)(pin)器的(de)(de)(de)生(sheng)產廠(chang)和系(xi)(xi)統(tong)集成(cheng)的(de)(de)(de)工(gong)(gong)程(cheng)(cheng)技術人(ren)員都在盡力于改(gai)善低頻(pin)(pin)區脈(mo)動(dong)(dong)(dong)(dong)這一(yi)技術問題如采用磁(ci)通(tong)(tong)控(kong)(kong)制方式、正弦波控(kong)(kong)制方式.可選擇自動(dong)(dong)(dong)(dong)轉(zhuan)距(ju)(ju)提(ti)升(sheng)和手動(dong)(dong)(dong)(dong)轉(zhuan)距(ju)(ju)提(ti)升(sheng)模式,其(qi)原理(li)是(shi)提(ti)升(sheng)定(ding)子電(dian)(dian)(dian)(dian)壓(ya)也就相(xiang)應(ying)了(le)啟動(dong)(dong)(dong)(dong)轉(zhuan)距(ju)(ju),但提(ti)升(sheng)電(dian)(dian)(dian)(dian)壓(ya)設置(zhi)過高,將導(dao)致電(dian)(dian)(dian)(dian)流(liu)過大引起電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)飽和、過熱或過電(dian)(dian)(dian)(dian)流(liu)跳閘。在很(hen)低的(de)(de)(de)下(xia),保證異(yi)步電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)在低速(su)時(shi)均勻,從而擴大了(le)變頻(pin)(pin)調(diao)速(su)范(fan)圍,異(yi)步電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)振動(dong)(dong)(dong)(dong)和噪聲。其(qi)圓形磁(ci)場的(de)(de)(de)實(shi)(shi)現,是(shi)通(tong)(tong)過檢測磁(ci)通(tong)(tong)使控(kong)(kong)制環(huan)節(jie)隨時(shi)判斷實(shi)(shi)際磁(ci)通(tong)(tong)超過誤差范(fan)圍與否。上述密化計(ji)算(suan)(suan)不僅要(yao)(yao)嚴格遵循給(gei)(gei)定(ding)軌跡要(yao)(yao)求還要(yao)(yao)符合機(ji)(ji)械(xie)系(xi)(xi)統(tong)平穩(wen)運(yun)動(dong)(dong)(dong)(dong)加(jia)減(jian)速(su)的(de)(de)(de)要(yao)(yao)求。根據運(yun)算(suan)(suan)結果(guo),分別向各(ge)坐標軸(zhou)發(fa)(fa)出(chu)形成(cheng)進給(gei)(gei)運(yun)動(dong)(dong)(dong)(dong)的(de)(de)(de)位(wei)置(zhi)指令。這個(ge)過程(cheng)(cheng)稱為(wei)插(cha)補(bu)運(yun)算(suan)(suan)。計(ji)算(suan)(suan)得到進給(gei)(gei)運(yun)動(dong)(dong)(dong)(dong)的(de)(de)(de)位(wei)置(zhi)指令通(tong)(tong)過內或伺服(fu)系(xi)(xi)統(tong)內的(de)(de)(de)位(wei)置(zhi)閉環(huan)、速(su)度(du)(du)環(huan)、電(dian)(dian)(dian)(dian)流(liu)環(huan)控(kong)(kong)制調(diao)節(jie),輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)流(liu)驅動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)機(ji)(ji)帶(dai)動(dong)(dong)(dong)(dong)工(gong)(gong)作(zuo)臺或作(zuo)相(xiang)應(ying)的(de)(de)(de)運(yun)動(dong)(dong)(dong)(dong),完成(cheng)程(cheng)(cheng)序(xu)規定(ding)的(de)(de)(de)加(jia)工(gong)(gong)任務。系(xi)(xi)統(tong)是(shi)一(yi)邊(bian)插(cha)補(bu)進行運(yun)算(suan)(suan),一(yi)邊(bian)進行加(jia)工(gong)(gong),是(shi)一(yi)種(zhong)典型(xing)的(de)(de)(de)實(shi)(shi)時(shi)控(kong)(kong)制方式。管理(li)程(cheng)(cheng)序(xu)管理(li)程(cheng)(cheng)序(xu)負責對數據輸(shu)(shu)入(ru)、數據處(chu)理(li)、插(cha)補(bu)運(yun)算(suan)(suan)等(deng)(deng)為(wei)加(jia)工(gong)(gong)過程(cheng)(cheng)服(fu)務的(de)(de)(de)各(ge)種(zhong)程(cheng)(cheng)序(xu)進行調(diao)度(du)(du)管理(li)。管理(li)程(cheng)(cheng)序(xu)還要(yao)(yao)對面(mian)板命(ming)令、時(shi)鐘信(xin)、故障信(xin)等(deng)(deng)引起的(de)(de)(de)中(zhong)斷進行處(chu)理(li)。也可以在運(yun)行前或故障發(fa)(fa)生(sheng)后,檢查系(xi)(xi)統(tong)各(ge)主(zhu)要(yao)(yao)部(bu)件、存儲器、接口、開關(guan)、伺服(fu)系(xi)(xi)統(tong)等(deng)(deng)的(de)(de)(de)功能是(shi)否正常。