维修欧陆直流调速590C/0350/5/3/0/1/0/00

一、直流调速器维修-欧陆590维修案例1

      故障现象：欧陆 590 直流调速器不能调速。检查分析：经检查 +10V 电压基准电源为 2V 左右， -10V 电压基准电源为 -7V 左右，查看有一 IC 发热很大，更换后 -10V 电源正常，但 +10V 电源为 +13V ，再测量此 IC 附近有 2 个贴片电阻烧断，更换后± 10 电源正常，接上马达试机调速运行正常。

二、直流调速器维修-欧陆590维修案例2

      故障现象： LCD 黑屏（但底板电源正常面板的正常指示灯及运行指示灯闪）故障分析： 造成 LCD 黑屏的原因有两种：一是电源供给5V不正常；二是程序初始化未能正常执行。Z初用示波器观测单片机 80C196KC晶振输入波形基本正常但有间歇性振荡幅度突降现象（间歇性周期约为 5MS ）单片机 I/O 输出数据也为间歇性中断输出（无数据状态且频率一致）因此故障电路指向 5V 电源，以及单片机的复位端信号是否正常？

     结果表示：复位端正常启动应为 H 电平而现为一脉冲，显然是这一脉冲导致I/O输出数据间歇性中断。 +5V 电源也有间歇性突降至 4V 现象，造成 +5V 电源突降4V 的可能，明显是电路中有元件受损跟随于这一间歇频率瞬时短路现象，从而造成单片和复位不成功，为此特意取消单片机电源监控复位保护信号 MAX825 芯片启动电源，短路故障（ULN2003 发烫）出现，换上新的 ULN2003 启通电正常。

三、直流调速器维修-欧陆590输出为转速、不可调

检查移相触发电路之前，应首先排除保护电路是否误动作，使移相触发电路不能投入正常工作。上电，若发现故障指示灯D4一直处于点亮状态，说明过流保护电路处于误动作状态，检查N3、N3两级保护电路；若D4灯不亮，测V6的Uce小于1V，则V6击穿损坏。

四、欧陆590直流调速器维修型号：

591P/0015/220/,590P/0015/220/,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/,590P/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/,590P/0165/500/,

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/0500/220/,590P/0500/220/,

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

591P/0500/500/,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/0725/600/,590P/0725/600/,

591P/0830/600/,590P/0830/600/,591P/0380/220/,590P/0380/220/,591P/0500/220/,590P/0500/220/,

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

591P/0500/500/,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/0725/600/,590P/0725/600/,

591P/0830/600/,590P/0830/600/,591P/1580/220/,590P/1580/220/,591P/1580/500/,590P/1580/500/,

591P/1580/600/,590P/1580/600/,591P/1580/220/,590P/1580/220/,591P/1580/500/,590P/1580/500/,

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

591P/2200/500/,590P/2200/500/,591P/2700/500/,590P/2700/500/,591P/1200/690/,590P/1200/690/,

591P/1700/690/,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/,591P/2200/500/,590P/2200/500/,

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

591P/2200/690/,590P/2200/690/,591P/2700/690/,590P/2700/690/;

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