一、軟啟動器的主要參數有什么

軟(ruan)啟動(dong)器(qi)的參數主要(yao)有(you)啟動(dong)時間(jian)，停止時間(jian)，啟動(dong)最大電(dian)流，啟動(dong)初(chu)始電(dian)壓(ya)。

1、啟(qi)動(dong)時(shi)間（一般為0.5——60s）是(shi)指軟啟(qi)動(dong)器將(jiang)電動(dong)機從(cong)停止啟(qi)動(dong)到全壓全速(su)所需的時(shi)間。

2、啟動(dong)電流(liu)是指電動(dong)機在啟動(dong)過程(cheng)中以(yi)不超過這個電流(liu)逐(zhu)步(bu)升壓的啟動(dong)限制電流(liu)。

3、停(ting)止(zhi)時間是指電動機從運行到停(ting)止(zhi)所(suo)用(yong)的時間。

4、啟動(dong)初始電壓(ya)為啟動(dong)開始時的(de)輸出電壓(ya)。

軟啟動器的參數設(she)定有的廠(chang)家(jia)是通(tong)過面板的顯示羼和按鍵，有的廠(chang)家(jia)是通(tong)過電位器來設(she)定。

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二、軟啟動器需要設置哪些參數

一(yi)般系(xi)統參(can)數(shu)(shu)是廠家內部(bu)的(de)一(yi)些參(can)數(shu)(shu)，作為用(yong)戶(hu)是不(bu)需要調的(de)。保(bao)護參(can)數(shu)(shu)有(you)(you)欠壓保(bao)護、缺相保(bao)護、過(guo)流保(bao)護、相電流不(bu)平衡保(bao)護。這(zhe)些參(can)數(shu)(shu)出廠的(de)時(shi)候基本已經設(she)置好了，用(yong)戶(hu)不(bu)需要做大的(de)改(gai)動。只有(you)(you)啟動參(can)數(shu)(shu)是要根(gen)據實(shi)際啟動負載做相應的(de)調整(zheng)。啟動參(can)數(shu)(shu)包括啟動方式、初始電壓、限流倍數(shu)(shu)等，最常設(she)置的(de)也(ye)是這(zhe)幾種(zhong)參(can)數(shu)(shu)。

1、起(qi)(qi)動(dong)方式一般有電壓斜坡(po)起(qi)(qi)動(dong)、限(xian)流(liu)起(qi)(qi)動(dong)、斜坡(po)限(xian)流(liu)起(qi)(qi)動(dong)、突調(diao)電壓起(qi)(qi)動(dong)等。

2、初(chu)始(shi)電(dian)(dian)壓太(tai)(tai)小軟啟動器起(qi)(qi)動電(dian)(dian)機只(zhi)聽電(dian)(dian)機嗡(weng)(weng)嗡(weng)(weng)響電(dian)(dian)機不轉，這說明(ming)力矩太(tai)(tai)小，初(chu)始(shi)電(dian)(dian)壓太(tai)(tai)大軟啟動器起(qi)(qi)動電(dian)(dian)機又太(tai)(tai)猛，失(shi)去了軟起(qi)(qi)動的(de)(de)效(xiao)果，所以初(chu)始(shi)電(dian)(dian)壓大小根據負載輕重做適當的(de)(de)修改。

3、限(xian)(xian)流(liu)倍數是指起(qi)動(dong)電(dian)(dian)(dian)(dian)機時候，瞬間電(dian)(dian)(dian)(dian)流(liu)控(kong)制在(zai)(zai)額定電(dian)(dian)(dian)(dian)流(liu)的(de)倍數內，例(li)如，75KW軟啟動(dong)器限(xian)(xian)流(liu)倍數設(she)置(zhi)成3，380V75KW軟啟動(dong)器額定電(dian)(dian)(dian)(dian)流(liu)是150A，那么起(qi)動(dong)時候，電(dian)(dian)(dian)(dian)機電(dian)(dian)(dian)(dian)流(liu)控(kong)制在(zai)(zai)450A以(yi)內。限(xian)(xian)流(liu)倍數設(she)置(zhi)過大(da)(da)，對(dui)電(dian)(dian)(dian)(dian)網(wang)沖擊(ji)較大(da)(da)，設(she)置(zhi)過小，電(dian)(dian)(dian)(dian)機啟動(dong)不起(qi)來，所以(yi)這個要根據(ju)實際情況設(she)置(zhi)；軟停車功能(neng)，是需要電(dian)(dian)(dian)(dian)機緩(huan)慢停下來的(de)場合進行(xing)設(she)置(zhi)的(de)。如深井泵，皮帶機。其余地方用的(de)比(bi)較少。