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更新時間：2024-06-11

產品簡介：

西門子S120伺服控制器上電后燈不亮RDY故障處理方法；

.驅(qu)動(dong)器的(de)直流母(mu)線的(de)連接，

.該(gai)軸(zhou)的(de)控制單元，可以更換做實驗，

.該軸的功率單元，可以(yi)更換做實(shi)驗，

輸(shu)出(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測值不(bu)(bu)平衡(heng)。變頻器接通電(dian)(dian)(dian)源(yuan)后(hou)顯示輸(shu)出(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測值不(bu)(bu)平衡(heng)故障(zhang)，故障(zhang)出(chu)在(zai)變頻器輸(shu)出(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測保護(hu)電(dian)(dian)(dian)路或者(zhe)驅動電(dian)(dian)(dian)路。西門子變頻器MMV420的輸(shu)出(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測保護(hu)電(dian)(dian)(dian)路共有3組，電(dian)(dian)(dian)流(liu)(liu)(liu)分別取樣于三相輸(shu)出(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)。

 取樣電阻上的信號經光禍(huo)隔離器7800A光禍(huo)放大(da)后再經放大(da)集成電路TL084進行放大(da)，然(ran)后送給相關電路處理，作為電流檢測信號送到CPU。首先檢查(cha)3個(ge)7800A的工作狀態，有(you)2只(zhi)7800A的Vddl=IOV,與d=-5V, V0ut =OV，其中有(you)I只(zhi)7800A的Vddl=20V,與d=20V, vo t=3V。3個(ge)電壓(ya)均不正常，顯然(ran)是故障狀態。

 7800A的(de)④腳(jiao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，它與(yu)VT，的(de)E極(ji)相連，又正(zheng)好是(shi)20V，驅動(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)低壓(ya)(ya)直流(liu)供電(dian)(dian)(dian)(dian)(dian)也(ye)是(shi)20V，可能是(shi)驅動(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)中產生負值(zhi)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)穩壓(ya)(ya)二(er)極(ji)管Y4損(sun)(sun)壞(huai)短路(lu)，導致(zhi)VT。的(de)E極(ji)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)Ue等于低壓(ya)(ya)直流(liu)供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)20V。檢查(cha)穩壓(ya)(ya)二(er)極(ji)管Y;果然損(sun)(sun)壞(huai)短路(lu)，再(zai)查(cha)與(yu)穩壓(ya)(ya)二(er)極(ji)管Y;串聯(lian)的(de)限流(liu)電(dian)(dian)(dian)(dian)(dian)阻也(ye)損(sun)(sun)壞(huai)短路(lu)。更換電(dian)(dian)(dian)(dian)(dian)阻和穩壓(ya)(ya)二(er)極(ji)管后(hou)，7800A的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)值(zhi)恢復正(zheng)常。

更換電阻和穩壓二極(ji)管(guan)，F23‘顯示消除。

這(zhe)臺變頻(pin)(pin)器有(you)一(yi)路上(shang)橋臂驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)路電(dian)(dian)(dian)源，穩壓(ya)二極(ji)管和(he)限流(liu)電(dian)(dian)(dian)阻(zu)損壞(huai)短路，使驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)路的(de)(de)(de)輸(shu)出端Ue不(bu)(bu)(bu)是(shi)(shi)(shi)(shi)(shi)一(yi)5V電(dian)(dian)(dian)壓(ya)，而是(shi)(shi)(shi)(shi)(shi)20V電(dian)(dian)(dian)壓(ya)。光(guang)禍隔離器7800A的(de)(de)(de)④腳(jiao)(jiao)與該端相連，所以7800A④腳(jiao)(jiao)上(shang)的(de)(de)(de)電(dian)(dian)(dian)壓(ya)喻(yu)d測(ce)出為20V. 7800A的(de)(de)(de)①腳(jiao)(jiao)和(he)④腳(jiao)(jiao)串接一(yi)個穩壓(ya)二極(ji)管VD,④腳(jiao)(jiao)上(shang)的(de)(de)(de)電(dian)(dian)(dian)壓(ya)通過穩壓(ya)二極(ji)管VD加到①腳(jiao)(jiao)，故7800A的(de)(de)(de)①腳(jiao)(jiao)電(dian)(dian)(dian)壓(ya)Udd l也為20V(值為19.4V )。這(zhe)2個不(bu)(bu)(bu)正(zheng)常(chang)的(de)(de)(de)電(dian)(dian)(dian)壓(ya)使7800A的(de)(de)(de)輸(shu)出電(dian)(dian)(dian)壓(ya)不(bu)(bu)(bu)是(shi)(shi)(shi)(shi)(shi)ov，而是(shi)(shi)(shi)(shi)(shi)3V，這(zhe)樣出現(xian)3組電(dian)(dian)(dian)流(liu)檢(jian)測(ce)保(bao)(bao)護電(dian)(dian)(dian)路的(de)(de)(de)輸(shu)出電(dian)(dian)(dian)壓(ya)不(bu)(bu)(bu)一(yi)致，變頻(pin)(pin)器顯示(shi)輸(shu)出電(dian)(dian)(dian)流(liu)測(ce)量值不(bu)(bu)(bu)平(ping)衡的(de)(de)(de)故障(zhang)。實(shi)際上(shang)變頻(pin)(pin)器輸(shu)出電(dian)(dian)(dian)流(liu)測(ce)量值不(bu)(bu)(bu)平(ping)衡故障(zhang)不(bu)(bu)(bu)是(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)流(liu)檢(jian)測(ce)保(bao)(bao)護電(dian)(dian)(dian)路故障(zhang)產生的(de)(de)(de)，而是(shi)(shi)(shi)(shi)(shi)驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)路故障(zhang)造成的(de)(de)(de)。(西(xi)門子變頻(pin)(pin)器維修實(shi)例(li))

西門子S120伺服控制器上電后燈不亮RDY故障處理方法；F30005故(gu)障(zhang)(zhang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，F07930代碼維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，F07801故(gu)障(zhang)(zhang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，25201伺服(fu)故(gu)障(zhang)(zhang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，F30027故(gu)障(zhang)(zhang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，F31885報警，模塊短路維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，跳(tiao)閘(zha)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，燈不亮維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，啟(qi)動無顯(xian)示，230021接地故(gu)障(zhang)(zhang)，T1過載，輸出電壓低維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，風扇報警維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，溫度故(gu)障(zhang)(zhang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)，電路板壞維(wei)(wei)(wei)(wei)修(xiu)(xiu)(xiu)等等。

西門子(zi)電機(ji)模塊(kuai)維(wei)(wei)(wei)修(xiu)(xiu)，西門子(zi)電機(ji)變頻(pin)器維(wei)(wei)(wei)修(xiu)(xiu)，西門子(zi)S120維(wei)(wei)(wei)修(xiu)(xiu)，西門子(zi)G120控制器維(wei)(wei)(wei)修(xiu)(xiu)，西門子(zi)機(ji)床(chuang)(chuang)變頻(pin)器維(wei)(wei)(wei)修(xiu)(xiu)，西門子(zi)機(ji)床(chuang)(chuang)模塊(kuai)維(wei)(wei)(wei)修(xiu)(xiu)，技術專業，免(mian)費檢測，收費低，當天修(xiu)(xiu)復，保證測試(shi)上機(ji)后，發貨。