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斬波調速電機車電源指示燈亮,起動指示燈(綠色)不亮的原因及修

作者: admin    發布于:2017-03-20 14:57   
  1、檢查控制器B插座的2腳有無15V起動電壓,若無,則控制板壞;若有,再測量B插座1腳電壓,1腳無15V,則檢查光電給定器內的微動開關及相關電路;1腳有15V,則檢查控制板。
  
  2、檢查功率管是否擊穿,若是,則更換功率管。
  
  3、檢查全速接觸器是否粘連,若是,則修復或更換全速接觸器。
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