上海佐度电子科技有限公司
http://www.zuodukeji.cn.alibaba.com
实例一 欧陆直流调速器维修
毛病景象:欧陆 590 直流调速器不能调速。
反省剖析:经反省 +10V 电压基准电源为 2V 左右, -10V 电压基准电源为 -7V 左右,检查有一 IC 发热很大,改换后 -10V 电源正常,但 +10V 电源为 +13V ,再测量此 IC 左近有 2 个贴片电阻烧断,改换后± 10 电源正常,接下马达试机调速运转正常。
实例二 欧陆直流调速器维修
毛病景象: LCD 黑屏(但底板电源正常面板的正常指示灯及运转指示灯闪)
毛病剖析: 形成 LCD 黑屏的缘由有两种:一是电源供应5V不正常;二是顺序初始化未能正常执行。最后用示波器观测单片机
后果表示: 复位端正常启动应为 H 电平而现为一脉冲,显然是这一脉冲招致I/O输入数据间歇性中缀。+5V 电源也有间歇性突降至 4V 景象欧陆直流调速器维修,形成 +5V 电源突降4V 的能够,分明是电路中有元件受损跟随于这一间歇频率瞬时短路景象,从而形成单片和复位不成功,为此特意取消单片机电源监控复位维护信号 MAX825 芯片启动电源,短路毛病( ULN2003 发烫)欧陆直流调速器维修呈现,换上新的 ULN2003 启通电正常。(仅供参考)
上海EUROTHERM欧陆直流调速器维修:
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;
上海EUROTHERM欧陆直流调速器维修:
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;
上海EUROTHERM欧陆直流调速器维修:
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;
上海EUROTHERM欧陆直流调速器维修:
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;
上海EUROTHERM欧陆直流调速器维修:
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。