問(wèn)答題
【簡(jiǎn)答題】齒輪油的壓力靠壓力開(kāi)關(guān)來(lái)檢測(cè)的,風(fēng)機(jī)是怎樣報(bào)出齒輪油壓力低故障的?壓力開(kāi)關(guān)的動(dòng)作值是多少?
答案:
當(dāng)齒輪油壓力低時(shí),壓力開(kāi)關(guān)內(nèi)的觸點(diǎn)動(dòng)作斷開(kāi),向PLC發(fā)信號(hào),PLC對(duì)應(yīng)程序發(fā)信號(hào)報(bào)警,壓力開(kāi)關(guān)的動(dòng)作值不低于0.4bar...