大連控制柜、變頻控制箱和大連PLC變頻控制柜出(chu)現在市(shi)場中引(yin)起銷售熱潮，其(qi)功能(neng)全(quan)面(mian)特點是(shi)起到(dao)很大作用，不(bu)同功能(neng)迎合到(dao)市(shi)場不(bu)同用戶群體，迅速占據到(dao)各大市(shi)場空間。以下(xia)就來為大家全(quan)面(mian)介紹(shao)PLC變頻控制柜功能(neng)信息內容(rong)： 

1、電(dian)源切換與保護(hu)功能，PLC變(bian)頻控制柜通(tong)常設(she)計(ji)有短路器元(yuan)件，連(lian)接著進線電(dian)源，可以幫助變(bian)頻設(she)備完成電(dian)路通(tong)斷控制，并能夠(gou)在電(dian)路和變(bian)頻器出現短路或(huo)是(shi)運行過載時給(gei)予保護(hu)，解決設(she)備在運行中會發(fa)生電(dian)力輸送安全(quan)問題，對操控人員(yuan)人身(shen)安全(quan)起到(dao)保護(hu)。 

2、變(bian)頻調(diao)速(su)(su)功能，PLC變(bian)頻控制柜面板上(shang)設有變(bian)頻調(diao)速(su)(su)用(yong)電位(wei)器(qi)，可(ke)以(yi)(yi)根(gen)據操作人員(yuan)輸送頻率，向電機輸送指令信(xin)號，控制電機運行速(su)(su)度，并且在部分產品設有工頻切換(huan)功能，以(yi)(yi)確(que)保變(bian)頻器(qi)出現(xian)故(gu)障時，可(ke)以(yi)(yi)通(tong)過裝(zhuang)置實現(xian)最低故(gu)障發生(sheng)，減(jian)少設備(bei)出現(xian)損壞(huai)次數。 

國家發改委啟動的十(shi)大重點節(jie)能工(gong)程之一(yi)就(jiu)是電機(ji)(ji)(ji)系(xi)統節(jie)能，并要(yao)求(qiu)：推廣變頻調速(su)節(jie)能技術，風機(ji)(ji)(ji)、水泵、壓(ya)縮機(ji)(ji)(ji)等通用(yong)機(ji)(ji)(ji)械(xie)系(xi)統采用(yong)變頻調速(su)節(jie)能措施(shi)，工(gong)業機(ji)(ji)(ji)械(xie)采用(yong)交流電動機(ji)(ji)(ji)變頻調速(su)技術；制(zhi)定相關(guan)經濟激勵政策(ce)、完善電機(ji)(ji)(ji)能效(xiao)標準體系(xi)等配套措施(shi)；“十(shi)一(yi)五”期間，實現電機(ji)(ji)(ji)系(xi)統運(yun)行效(xiao)率提高(gao)2個百分點，形成(cheng)年節(jie)電能力200億千瓦(wa)時。 

為(wei)推(tui)動全社(she)會展開節(jie)能降耗，緩解能源(yuan)瓶頸的(de)制約，建設(she)節(jie)能型社(she)會，國家發改委制定了《節(jie)能中(zhong)長期專項規(gui)劃(hua)》，并在2004年11月(yue)25日向(xiang)全社(she)會發布。該“規(gui)劃(hua)”明確(que)指出：能源(yuan)是(shi)戰(zhan)略資(zi)源(yuan)，是(shi)全面建設(she)小康社(she)會的(de)重要物(wu)質基礎，必須堅持(chi)節(jie)約優(you)先。 

隨著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)和開(kai)關(guan)行業的(de)(de)(de)(de)飛速(su)(su)發展，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設(she)(she)備與人們(men)的(de)(de)(de)(de)工作、生活的(de)(de)(de)(de)關(guan)系日(ri)益(yi)密(mi)切，而(er)(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設(she)(she)備都離不開(kai)可靠(kao)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，進入80年代計(ji)算機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)全面實(shi)現了開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)化，率先完成(cheng)(cheng)計(ji)算機(ji)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)換代，進入90年代開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼(ji)進入各種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器設(she)(she)備領域(yu)，程控(kong)交換機(ji)、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)檢測設(she)(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、控(kong)制(zhi)(zhi)設(she)(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)等都已廣泛地使用了開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進了開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)技(ji)術(shu)(shu)的(de)(de)(de)(de)迅速(su)(su)發展。開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)是利(li)用現代電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)，控(kong)制(zhi)(zhi)開(kai)關(guan)晶體管開(kai)通和關(guan)斷的(de)(de)(de)(de)時間比(bi)(bi)率，維持穩定(ding)輸出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)(de)一種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)一般(ban)由脈沖寬度調制(zhi)(zhi)（PWM）控(kong)制(zhi)(zhi)IC和MOSFET構成(cheng)(cheng)。開(kai)關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)和線性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相比(bi)(bi)，二(er)者的(de)(de)(de)(de)成(cheng)(cheng)本(ben)都隨著輸出(chu)功率的(de)(de)(de)(de)增(zeng)加而(er)(er)增(zeng)長，但二(er)者增(zeng)長速(su)(su)率各異。