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路在何方
路漫漫其修遠兮，吾將上下而求索。
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樓主  發(fā)表于: 2016-06-25 10:25
                需要實(shí)現的功能是保壓，設定低壓5MP低壓觸點(diǎn)接通，電路開(kāi)始工作，到達15MP斷開(kāi)工作電路，我手上現在有款普通的電接點(diǎn)壓力表，到達高壓值高壓接點(diǎn)接通，低壓接點(diǎn)斷開(kāi)，當低于高壓值時(shí)低壓接點(diǎn)馬上就接通了，導致齒輪油泵頻繁工作。 [attachment=149077]
fengrunsheng
生活中本不缺少美,缺少的是發(fā)現美的眼睛!
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1樓  發(fā)表于: 2016-06-28 15:08
表是不是接錯線(xiàn)了?一般高低壓都用常開(kāi)點(diǎn),你怎么低壓用常閉點(diǎn)呢?
或者是表接的油路錯誤!導致達到壓力停機后,表針馬上回落!
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