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更新時間：2024-06-11

產品簡介：

西門子6RA23調速器電機抖動報F26故障分析；一般這種情況(kuang)調(diao)速器內(nei)部板子損(sun)壞可能性大，

西門子6RA和歐陸派克(ke)590都采(cai)用(yong)的(de)是(shi)單相橋式可(ke)控(kong)硅整流(liu)(liu)。DCS400直(zhi)流(liu)(liu)調(diao)(diao)速(su)器(qi)采(cai)用(yong)了斬(zhan)(zhan)波電(dian)(dian)(dian)(dian)路(lu)，將三(san)相整流(liu)(liu)所得的(de)六脈波電(dian)(dian)(dian)(dian)壓，經(jing)IGBT斬(zhan)(zhan)波，后(hou)級L、C電(dian)(dian)(dian)(dian)路(lu)濾波，形成(cheng)較為平滑和穩定(ding)（質量較高）的(de)直(zhi)流(liu)(liu)可(ke)調(diao)(diao)電(dian)(dian)(dian)(dian)壓，也因為采(cai)用(yong)斬(zhan)(zhan)波電(dian)(dian)(dian)(dian)路(lu)，電(dian)(dian)(dian)(dian)路(lu)的(de)調(diao)(diao)壓范圍變寬，無須對輸入電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓（AC220和AC380V）進行切換輸入，而(er)是(shi)直(zhi)接輸入三(san)相380V電(dian)(dian)(dian)(dian)源(yuan)。IGBT控(kong)制信(xin)號為調(diao)(diao)寬脈沖，根據參數設置要求，可(ke)設置最(zui)大輸出直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)壓值。勵(li)磁主電(dian)(dian)(dian)(dian)路(lu)采(cai)用(yong)模(mo)塊式封裝，內(nei)含三(san)相橋式整流(liu)(liu)電(dian)(dian)(dian)(dian)路(lu)、IBGT開關管等功率器(qi)件，M、E引出端子可(ke)串接電(dian)(dian)(dian)(dian)抗(kang)器(qi)或(huo)予以(yi)短(duan)接。勵(li)磁板(ban)上的(de)IGBT所需(xu)的(de)脈寬調(diao)(diao)整信(xin)號由(you)勵(li)磁觸發板(ban)提供，觸發電(dian)(dian)(dian)(dian)路(lu)使用(yong)了由(you)UC3844組(zu)成(cheng)的(de)開關電(dian)(dian)(dian)(dian)源(yuan)隔(ge)離供電(dian)(dian)(dian)(dian)和隔(ge)離放大觸發電(dian)(dian)(dian)(dian)路(lu)。

      IGBT輸出的PWM電(dian)(dian)(dian)壓(ya)，經1800uF電(dian)(dian)(dian)容和(he)L1濾波，供直流電(dian)(dian)(dian)機的勵磁繞組，在(zai)勵磁電(dian)(dian)(dian)源上還并接了一(yi)(yi)個模塊式勵磁過(guo)壓(ya)保(bao)護(hu)組件(jian)，將(jiang)勵磁電(dian)(dian)(dian)路化簡如下，看一(yi)(yi)下過(guo)壓(ya)保(bao)護(hu)組

經兩只(zhi)限(xian)流(liu)電(dian)阻(zu)引入橋式整流(liu)電(dian)路(lu)(lu)，又(you)經CLC電(dian)路(lu)(lu)濾(lv)波后，作為開(kai)關電(dian)源的直(zhi)流(liu)300V供(gong)電(dian)電(dian)源。開(kai)關電(dian)源電(dian)路(lu)(lu)一般包括(kuo)以下幾個(ge)回路(lu)(lu)：

      1）振(zhen)(zhen)蕩(dang)回(hui)路(lu)(lu)(lu)。由10只10k串聯電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)、470Ω電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)、穩(wen)壓管構成(cheng)(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)源起動電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)，14腳(jiao)、7腳(jiao)內(nei)外電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)構成(cheng)(cheng)振(zhen)(zhen)蕩(dang)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)，UC3844內(nei)部相(xiang)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)、開(kai)關(guan)管V741、開(kai)關(guan)變壓器的(de)(de)一次繞(rao)組、自供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)繞(rao)組等構成(cheng)(cheng)整個(ge)振(zhen)(zhen)蕩(dang)回(hui)路(lu)(lu)(lu)，V741受(shou)控(kong)導通后，自供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)繞(rao)組產生(sheng)感應電(dian)(dian)(dian)(dian)(dian)(dian)壓，經整流濾波后作為(wei)UC3844的(de)(de)工作供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)源。振(zhen)(zhen)蕩(dang)回(hui)路(lu)(lu)(lu)，是電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)上(shang)電(dian)(dian)(dian)(dian)(dian)(dian)后形成(cheng)(cheng)振(zhen)(zhen)蕩(dang)、開(kai)始工作的(de)(de)主要環節(jie)。

      2）穩壓(ya)(ya)(ya)(ya)(ya)(ya)回(hui)路。電(dian)(dian)(dian)路起振工(gong)作后(hou)，穩壓(ya)(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)路隨之發生作用，精確控(kong)制(zhi)10腳輸(shu)出(chu)(chu)的(de)(de)(de)(de)PWM脈沖信號(hao)的(de)(de)(de)(de)占空(kong)比(bi)，使脈沖變(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器的(de)(de)(de)(de)儲能(neng)發生變(bian)(bian)化，維持二次繞組輸(shu)出(chu)(chu)的(de)(de)(de)(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)值保(bao)(bao)持穩定。對(dui)輸(shu)出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)自動實施穩壓(ya)(ya)(ya)(ya)(ya)(ya)控(kong)制(zhi)的(de)(de)(de)(de)電(dian)(dian)(dian)路環(huan)節稱為穩壓(ya)(ya)(ya)(ya)(ya)(ya)回(hui)路，一(yi)般由(you)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)反饋電(dian)(dian)(dian)路、基準電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)與光耦(ou)(ou)電(dian)(dian)(dian)路形(xing)成的(de)(de)(de)(de)外部(bu)(bu)誤(wu)差放大器、UC3844內部(bu)(bu)誤(wu)差放大器、PWM控(kong)制(zhi)電(dian)(dian)(dian)路等(deng)構(gou)成，本電(dian)(dian)(dian)路是(shi)由(you)N76及外圍電(dian)(dian)(dian)路將電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)反饋信號(hao)進(jin)行處理(li)，控(kong)制(zhi)光耦(ou)(ou)合器D73輸(shu)入電(dian)(dian)(dian)流(liu)的(de)(de)(de)(de)大小，使D73輸(shu)出(chu)(chu)側光敏三極(ji)管(guan)的(de)(de)(de)(de)導(dao)通內阻(zu)發生變(bian)(bian)化，進(jin)而控(kong)制(zhi)UC3844的(de)(de)(de)(de)反饋信號(hao)輸(shu)入腳3腳的(de)(de)(de)(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)變(bian)(bian)化，使內部(bu)(bu)PWM脈沖處理(li)電(dian)(dian)(dian)路，改變(bian)(bian)10腳輸(shu)出(chu)(chu)脈沖的(de)(de)(de)(de)占空(kong)比(bi)，達到穩壓(ya)(ya)(ya)(ya)(ya)(ya)輸(shu)出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)目的(de)(de)(de)(de)。穩壓(ya)(ya)(ya)(ya)(ya)(ya)回(hui)路也是(shi)保(bao)(bao)證電(dian)(dian)(dian)路正常(chang)工(gong)作的(de)(de)(de)(de)一(yi)個重(zhong)要(yao)環(huan)節，影響到輸(shu)出(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)高低和穩定。

西門子6RA23調速器電機抖動報F26；技術服務部有充足的備件和技術優良的維修工程師可為客戶提供室內維修、現場維修、技術支持服務。所有維修工程師均接受SIEMENS公司專業技術培訓，維修備件庫有各種型號IGBT模塊，各型號主控制板、電源板、脈沖觸發板、信號轉換板、散熱風機等維修備件。對于MM440、MM430系列標準傳動產品、6SE70系列工程型傳動產品45KW及以上功率型號變頻器；直流調速器均可提供現場服務。