伺(si)服電機(servo motor )是(shi)指(zhi)在伺(si)服系統中控制機械(xie)元件運轉的(de)發動機,是(shi)一種(zhong)補助馬達(da)間(jian)接變速(su)裝置。
伺(si)服(fu)(fu)電(dian)(dian)機(ji)可使控(kong)(kong)制(zhi)速(su)度(du)(du),位置(zhi)精度(du)(du)非常準(zhun)確,可以將電(dian)(dian)壓(ya)信(xin)號轉(zhuan)化為轉(zhuan)矩(ju)(ju)和轉(zhuan)速(su)以驅動(dong)控(kong)(kong)制(zhi)對象。伺(si)服(fu)(fu)電(dian)(dian)機(ji)轉(zhuan)子轉(zhuan)速(su)受輸(shu)入信(xin)號控(kong)(kong)制(zhi),并能快(kuai)速(su)反應,在自動(dong)控(kong)(kong)制(zhi)系統(tong)中,用作執行元件,且具有(you)機(ji)電(dian)(dian)時間常數小、線性(xing)度(du)(du)高、始動(dong)電(dian)(dian)壓(ya)等特性(xing),可把所收到(dao)的電(dian)(dian)信(xin)號轉(zhuan)換成電(dian)(dian)動(dong)機(ji)軸上的角位移(yi)或角速(su)度(du)(du)輸(shu)出。分為直流(liu)和交流(liu)伺(si)服(fu)(fu)電(dian)(dian)動(dong)機(ji)兩(liang)大類,其主要(yao)特點是(shi),當信(xin)號電(dian)(dian)壓(ya)為零時無自轉(zhuan)現象,轉(zhuan)速(su)隨著(zhu)轉(zhuan)矩(ju)(ju)的增加而勻速(su)下降。
伺服電機故(gu)障維修測試的詳(xiang)細步驟
首先(xian)先(xian)測(ce)試一下電(dian)機(ji),任何電(dian)路(lu)也不用連接,把(ba)電(dian)機(ji)的三根線任意(yi)兩根短路(lu)在一起,用手轉動(dong)電(dian)機(ji)軸,感覺起來有阻(zu)力,那就OK。常州電(dian)機(ji)維(wei)修
二,把驅(qu)動(dong)器(qi)按圖紙(zhi)接上電(dian)(dian)源(例如用了調壓器(qi),從(cong)100V調到(dao)220V,怕(pa)驅(qu)動(dong)器(qi)是100V的),通電(dian)(dian),驅(qu)動(dong)器(qi)正常(chang)(chang),有(you)(you)錯(cuo)(cuo)誤信息顯(xian)示(shi)(shi),對照(zhao)說(shuo)明書(shu),是顯(xian)示(shi)(shi)了編碼器(qi)有(you)(you)故(gu)障(zhang)的錯(cuo)(cuo)誤,這個也正常(chang)(chang),還沒有(you)(you)連接編碼器(qi)呢。
三(san),接上編碼器,再開機,沒有(you)任何錯誤顯示了(le)。
四,按照說(shuo)明書上(shang)設置驅動(dong)(dong)器(qi)。例如設置了“速度控制模式”,然(ran)后旋(xuan)(xuan)動(dong)(dong)電位器(qi),電機(ji)沒有轉(zhuan)(zhuan)動(dong)(dong)。按說(shuo)明書上(shang)的(de)說(shuo)明,調整撥(bo)動(dong)(dong)開關,后把(ba)“Servo-ON”撥(bo)動(dong)(dong)以后,電機(ji)一下(xia)子鎖定(ding)了,OK!然(ran)后旋(xuan)(xuan)動(dong)(dong)電位器(qi),使SPR/TRQR輸入(ru)引腳有電壓,好(hao)!電機(ji)轉(zhuan)(zhuan)動(dong)(dong)起來了。伺服驅動(dong)(dong)器(qi)上(shang)的(de)轉(zhuan)(zhuan)數達到了1000、2000、3000后可(ke)到4000多轉(zhuan)(zhuan)。說(shuo)明書上(shang)推薦是3000轉(zhuan)(zhuan)的(de),再高速可(ke)能(neng)會有些問題。
五,重(zhong)新設置了伺服驅(qu)動器,改成(cheng)“位置控制模式”,把運動控制卡(或者使用(yong)MACH3,連接(jie)(jie)電腦(nao)并行(xing)口(kou))接(jie)(jie)到(dao)脈沖(chong)、方向接(jie)(jie)口(kou)上(shang),電機也轉動了!按照500Kpps的輸出(chu)速率,驅(qu)動器上(shang)顯(xian)示出(chu)了3000rpm。正(zheng)反(fan)轉都可(ke)自(zi)行(xing)控制。
再調節一(yi)下(xia)運動控制(zhi)卡,和(he)做(zuo)的小(xiao)連接(jie)板。板子上的LED陣列是(shi)為了測試輸(shu)出用的,插(cha)座是(shi)連接(jie)兩相編(bian)碼器的,另一(yi)個插(cha)座是(shi)輸(shu)出脈(mo)沖/方向(xiang)的,開關、按鈕是(shi)測試I/O輸(shu)入的。
重(zhong)慶塞蒙電(dian)(dian)機(ji)(ji)(ji)(tel:)是一家(jia)集重(zhong)慶電(dian)(dian)機(ji)(ji)(ji)維(wei)(wei)修(xiu),重(zhong)慶直流(liu)電(dian)(dian)機(ji)(ji)(ji)維(wei)(wei)修(xiu),重(zhong)慶高壓(ya)電(dian)(dian)機(ji)(ji)(ji)維(wei)(wei)修(xiu)廠(chang).承接各種交流(liu)同步(bu)發電(dian)(dian)機(ji)(ji)(ji)維(wei)(wei)修(xiu)、同步(bu)電(dian)(dian)動機(ji)(ji)(ji)、異步(bu)電(dian)(dian)動機(ji)(ji)(ji)維(wei)(wei)修(xiu)、直流(liu)電(dian)(dian)機(ji)(ji)(ji)維(wei)(wei)修(xiu)等(deng)的專業電(dian)(dian)機(ji)(ji)(ji)修(xiu)理廠(chang),維(wei)(wei)修(xiu)裝(zhuang)備(bei)精良,歡迎來(lai)電(dian)(dian)咨(zi)詢!
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