倫茨變頻器驅動波形異常 檢修分析。近期修了一台德國倫茨lenzebianpinqi
，weixiuguochengshuoshuohuayoudianquzhebudingde，zhetaishiwoshanghaidekehudeyitaijizizhegegonglvyebusuanda
，danshidalaoyuandesongguolaizanmenyaofuzedaodibushima，danshizhetaijizihewozhiqianweixiudeyoudianbuyiyang，yikaishiyejiushiguodianyadeguzhang，houlaianzhaowofengfudeweixiujianyana
，yuanlishiqudongbandeguzhangdaozhideguodianyaguzhang
，jingguojianceshiyigejiancexinpianbeihuichenbaoleN層ceng了le，長chang時shi間jian腐fu蝕shi了le引yin起qi的de故gu障zhang，在zai我wo清qing洗xi了le主zhu板ban後hou

，跟gen換huan檢jian測ce芯xin片pian
，過guo電dian壓ya故gu障zhang解jie除chu了le，但dan是shi又you出chu了le新xin問wen題ti，電dian壓ya輸shu出chu不bu穩wen定ding，而er且qie使shi用yong示shi波bo器qi檢jian測ce發fa現xian波bo形xing不bu對dui
，到dao底di是shi什shen麼me故gu障zhang導dao致zhi的de。

倫茨變頻器故障的表現和初步測試

過guo電dian壓ya故gu障zhang修xiu好hao，發fa現xian輸shu出chu電dian壓ya不bu正zheng常chang，再zai想xiang是shi不bu是shi這zhe個ge倫lun茨ci變bian頻pin器qi設she計ji的de結jie構gou比bi較jiao複fu雜za
？還hai有you什shen麼me犄ji角jiao旮ga旯la我wo沒mei有you注zhu意yi到dao？因yin為wei也ye是shi頭tou一yi次ci修xiu這zhe個ge倫lun茨ci這zhe玩wan意yi，發fa現xian異yi常chang後hou就jiu開kai始shi測ce試shi首shou先xian檢jian查zha的de就jiu是shi開kai關guan電dian源yuan的de周zhou圍wei電dian壓ya是shi否fou異yi常chang

，這zhe個ge是shi通tong用yong的de法fa則ze
，隻zhi要yao欠qian壓ya或huo者zhe過guo亞ya或huo者zhe其qi它ta電dian壓ya不bu正zheng常chang的de都dou要yao進jin行xing一yi次ci開kai關guan電dian源yuan的de檢jian測ce

，發fa現xian這zhe個ge開kai關guan電dian源yuan是shi正zheng常chang的de。24伏特*2,兩路+15伏特,一路-15伏特,還有一路+10伏特和-10伏特。看來沒有什麼問題。但是測量中橋電壓顯示的是10伏特到15伏特

，但是通過示波器測量總是有波紋的
，正確的是沒有波紋一直沒有解決這個問題。

倫茨變頻器沒有波紋的故障分析

其實這個故障以前也遇到過，不過是那是一台ABBbianpinqi。qishizhegeguzhangyebushishenmedabuledewenti。danshiyishijianzhaobudaowentiyeshitingrangrenzhuakuangde，womenfenxizhegeguzhanghaishichuzaiqudongbanshang
，yejiushishuozhegezhubanshanghaiyouqitawomen，meiyoufaxiandeyixieguzhang，yingxianglezhegeboxingdezhengchangbiaoxian，nameweishenmeyinggaimeiyouboxingqueyoulene？

meiyouboxingshuomingzhebuyunxingdezhuangtaixiazhegejiushimeiyoudianyashuchude，erxianzaizhegezhonggongqiaoshiyoudianyade，zhegejiubuduile，suoyiwomencongxinduiqudongbangegedianrongkaishijiance
，houlaifaxiangongdiandianrongqizhongdeyigeyouduanludexingwei，jutideguzhangyuanyinhaishiyinweijihuidaozhideduanlu
，genghuanlezhegedianronghouzhongxinshangdianceshibaojingxiaoshile。zhegeguzhangshuomingbunengzhadaoqizhongyigeyuanyinjiurenweixiuhaole，jiuxiangzhetailuncidebianpinqidangwomenzaiguzhangfanweineizhaodaoyigeguzhangyuanyin
，yidingbuyaoloudiaoqitadeguzhang，buranhoumiancongxinjianxiuhuihuadaliangshijian。suoyijianxiubuzhoubunengshao，jianxiudefanweiyebunengshao。

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