信陽 息縣淮濱潢川光山固始商城羅歐陸590直流調速器維修案例

歐陸590 直流調速器維修案例一 

故障現象:歐陸 590 直流調速器不能調速。 

檢查分析⭕:經檢查 +1🦩0V 電壓基準電源為 2V 左右, -10V 電壓基準電源為 -7V 左右,查看有一 IC 發熱很大,更換后 -10V 電源正常,但 +10V 電源為 +13V ,再測量此 IC 附近有 2 個貼片電阻燒斷,更換后± 10 電源正常,接上馬達試機調速運行正常。


歐陸590 直流調速器維修案例二 

故障現象: LCD 黑屏(但底板電源正常面板的正常指示燈及運行指示燈閃) 

故障分析: 造成 LCD 黑屏的原因有兩種:一是電源供給5V不正常;二是程序初始化未能正常執行。*初用示波器觀測單片機 80C196KC晶振輸入波形基本正常但有間歇性振蕩幅度突降現象(間歇性周期約為 5MS )單片機 I/O 輸出數據也為間歇性中斷輸出(無數據狀態且頻率一致)因此故障電路指向 5V 電源及單片機的復位端信號正常與否? ꦑ;

結果表示: 復位端正常啟動應為 H 電平而現為一脈沖,顯然是這一脈沖導致I/O輸出數據間歇性中斷。 +5V 電源也有間歇性突降至 4V 現象,造成 +5V 電源突降4V 的可能,明顯是電路中有元件受損跟隨于這一間歇頻率瞬時短路現象,從而造成單片和𒁏復位不成功,為此特意取消單片機電源監控復位保護信號 MAX825 芯片啟動電源,短路故障( ULN2003 發燙)出現,換上新的 ULN2003 啟通電正🍃常,河南西康機電專業維修。 

歐陸直流調速器維修包括以下系列產品: 
591P/0015/220/,590P/00♒15/220/,591P/0035/220/,590P/0035/220/,591P/0015/500/,590P/0015/500/,

591P/0035/500/,590P/0035/500/,591P/0040/220/,590P/0040/220/,591P/0070/220/,5🎃90P/0070/220/,

591P/0110/220/,590P/0110/220/,591P/0165/220/💦,590P/0165/220/,591P/0040/500/,590P/0040/500/,

591P/0070/500/,590P/0070/500/,591P/0110/500/,590P/0110/500/,591P/0165/500/,5𒁏90P/0165/50♏0/,

591P🥂/0180/220/,590P/0180/220/,591P/0270/220/,590P/0270/220/,591P/0180/500/,590P/0180/500/,

591P/0270/500/,590P/0270/500/,591P/0380/220/,590P/0380/220/,591P/0500/22ꦉ0/,590P/0500/220/,

591👍P/0725/220/,590P/0725/220𝓰/,591P/0830/220/,590P/0830/220/,591P/0380/500/,590P/0380/500/,

591P/0ඣ500/500/,590P/0500/500/,591P/0725/500/,590P/0725/500/,591P/0830/500/,590P/0830/500/,

591P/0380/600/,590P/0380/600/,591P/﷽0500/600/,590P/0500/600/,591P/0725/60ꦉ0/,590P/0725/600/,

591P/0830/600/,590P/0830/600/,591P🍨/0380/22ཧ0/,590P/0380/220/,591P/0500/220/,590P/0500/220/,

591P/0725/220/,590P/0725/22ꦉ0/,591P/0830/220/,590P/0830/220/,591P/0380/500/,590P/0380/500/,

591P/0500/500/,590P/0500/500/,591P/0725/5🌠00/,590P/0725/500/,591P/083⛎0/500/,590P/0830/500/,

591P/0380/600/,590P/0380/600/,591P/0500♏/600/,590P/0500/600/,591P/0725/600/,590P/0725🐠/600/,

591P/0830/600/,590P/0830/600/,591P/1580/220/,590P/1580/220/,591P/1580/500/,5💝90P/1580/500/,

591P/1580/600/,590P/1580/600/,591P/1580/220/,590P/1580/220/,591P/15🌄80/500/,590P/1580/500/,

591P/1580/600/,590P/1580/600/,591P/1200/500/,590P/1200/500/,591P/1700𝔉/500/,590P/1700/500/,

591P/2200/🐠500/,590P/2200/500/,591P/2700/500/,590P/2700/500/,591P/12⛎00/690/,590P/1200/690/,

591P/1🦩700/690/,590P/1700/690/🍨,591P/2200/690/,590P/2200/690/,591P/2700/690/,590P/2700/690/,

591P/1200/500/,590P/1200/500/,591P/1700/500/,590P/1700/500/,591P𓆏/2200/500/,590P/2200/500/,

591P/2700/500/,590P/2700/500/,591P/1200/690/,590P/1൲200/690/,591P/1700/690/,590P/1700/690/,

591P/2200/690/,590P/2200/690/,591P/270✃💫0/690/,590P/2700/690/;

512C/514/512C/04,512C/08,512C/16,512C/32;