1、高速冷凍離心機軟件流程：

   系統輸(shu)(shu)(shu)入(ru)有(you)兩個：轉(zhuan)(zhuan)速(su)輸(shu)(shu)(shu)入(ru)和溫(wen)(wen)度輸(shu)(shu)(shu)入(ru)。轉(zhuan)(zhuan)速(su)由光(guang)碼測(ce)量,每轉(zhuan)(zhuan)輸(shu)(shu)(shu)出(chu)六個脈沖。溫(wen)(wen)度由ADS90測(ce)量,當溫(wen)(wen)度高于設(she)定值2.C時,壓(ya)縮機啟(qi)動(dong)；當溫(wen)(wen)度低于設(she)定值2~C時,壓(ya)縮機停止.另外,系統有(you)時間控制(zhi),當電(dian)機轉(zhuan)(zhuan)速(su)超過500轉(zhuan)(zhuan)時開始計時.當計時達到設(she)定時間時停機.系統輸(shu)(shu)(shu)出(chu)有(you)繼電(dian)器(qi)輸(shu)(shu)(shu)出(chu)的(de)變(bian)頻器(qi)啟(qi)／停、壓(ya)縮機啟(qi)停、門(men)(men)鎖控制(zhi)和D／A輸(shu)(shu)(shu)出(chu)的(de)0—5V或0一IOV的(de)電(dian)壓(ya)控制(zhi)轉(zhuan)(zhuan)速(su).故(gu)(gu)障檢測(ce)有(you)變(bian)頻器(qi)故(gu)(gu)障、開門(men)(men)故(gu)(gu)障、失衡(heng)故(gu)(gu)障、超溫(wen)(wen)故(gu)(gu)障、超速(su)故(gu)(gu)障。　　

   在樣(yang)機調試中(zhong)已確定了(le)七種轉(zhuan)子(zi)型號的(de)控制子(zi)程序,適合于(yu)幾千轉(zhuan)三萬轉(zhuan)的(de)轉(zhuan)子(zi).在應用中(zhong),用戶只需通過鍵盤輸入用戶所使用的(de)轉(zhuan)子(zi)型號.

2、系統運行結果

　　出(chu)控(kong)制失靈及(ji)系統機(ji)械故(gu)障(zhang)等應能(neng)及(ji)時檢(jian)測(ce)并報警,關閉所有(you)控(kong)制對象,使系統損失減(jian)到小.同時在檢(jian)測(ce)到一些(xie)對生產不(bu)造成影響的故(gu)障(zhang)如按鍵損壞、顯示不(bu)正常等,則(ze)應報警提示操(cao)作員,但不(bu)停止(zhi)生產。

　　液壓(ya)(ya)機實(shi)(shi)(shi)(shi)現壓(ya)(ya)力(li)平衡的方(fang)(fang)式采(cai)用(yong)(yong)的是加壓(ya)(ya)與泄(xie)(xie)壓(ya)(ya)并(bing)存進行(xing)的.當壓(ya)(ya)差(需(xu)要壓(ya)(ya)力(li)一實(shi)(shi)(shi)(shi)際(ji)壓(ya)(ya)力(li))較大時(shi)采(cai)用(yong)(yong)強加壓(ya)(ya)、泄(xie)(xie)壓(ya)(ya)為零(ling)輸(shu)出(chu)方(fang)(fang)式；壓(ya)(ya)差較小時(shi)采(cai)用(yong)(yong)弱加壓(ya)(ya)、泄(xie)(xie)壓(ya)(ya)為零(ling)輸(shu)出(chu)方(fang)(fang)式；負壓(ya)(ya)(需(xu)要壓(ya)(ya)力(li)一實(shi)(shi)(shi)(shi)際(ji)壓(ya)(ya)力(li)為負)時(shi)剛要用(yong)(yong)如壓(ya)(ya)為零(ling)、泄(xie)(xie)壓(ya)(ya)輸(shu)出(chu)方(fang)(fang)式.這個過程(cheng)理論上較簡單(dan),但實(shi)(shi)(shi)(shi)際(ji)控制過程(cheng)中由于(yu)系統響應滯后(hou)現象產生(sheng),其算(suan)法應在(zai)現場(chang)實(shi)(shi)(shi)(shi)際(ji)調試(shi)中加以調整,以求得為滿意的控制結果.

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