力士樂伺服閥4WS2EM16-24/200B12ET315K8DM它(ta)的集(ji)成(cheng)(cheng)電(dian)子元件它(ta)是通過(guo)提供和(he)系統偏(pian)差(cha)成(cheng)(cheng)正比(bi)的電(dian)流(liu)來將控(kong)(kong)制(zhi)(zhi)(zhi)值與實際值進行(xing)比(bi)較，并(bing)控(kong)(kong)制(zhi)(zhi)(zhi)先導控(kong)(kong)制(zhi)(zhi)(zhi)閥的轉矩電(dian)機。先導控(kong)(kong)制(zhi)(zhi)(zhi)閥移(yi)動到比(bi)例(li)控(kong)(kong)制(zhi)(zhi)(zhi)位置，并(bing)控(kong)(kong)制(zhi)(zhi)(zhi)進出控(kong)(kong)制(zhi)(zhi)(zhi)室A(7和(he)B(8)的流(liu)量(liang)。主閥芯(5)通過(guo)閉環控(kong)(kong)制(zhi)(zhi)(zhi)閥啟動，直到系統偏(pian)差(cha)為0。因此，主閥芯的行(xing)程(cheng)由控(kong)(kong)制(zhi)(zhi)(zhi)值的比(bi)例(li)控(kong)(kong)制(zhi)(zhi)(zhi)。必須注意(yi)，流(liu)量(liang)也(ye)取(qu)決于(yu)閥門的壓降(jiang)。