大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市(shi)場(chang)中引起(qi)銷(xiao)售熱潮，其(qi)功能全(quan)面特點是(shi)起(qi)到很大作用，不(bu)同(tong)功能迎合到市(shi)場(chang)不(bu)同(tong)用戶群(qun)體，迅速占據(ju)到各大市(shi)場(chang)空間。以下(xia)就來為大家全(quan)面介紹PLC變頻控(kong)制柜功能信息內容： 

1、電(dian)源(yuan)(yuan)切換與(yu)保護(hu)功能(neng)，PLC變頻控(kong)制(zhi)柜通(tong)常設計(ji)有(you)短(duan)路(lu)器(qi)元件，連接著進線電(dian)源(yuan)(yuan)，可以(yi)幫助(zhu)變頻設備(bei)(bei)完成電(dian)路(lu)通(tong)斷控(kong)制(zhi)，并能(neng)夠在電(dian)路(lu)和變頻器(qi)出現短(duan)路(lu)或是運行過(guo)載時給予(yu)保護(hu)，解決設備(bei)(bei)在運行中會(hui)發生電(dian)力輸送安全問題，對操(cao)控(kong)人(ren)員(yuan)人(ren)身安全起到(dao)保護(hu)。 

2、變頻(pin)調(diao)(diao)速(su)(su)(su)功(gong)能，PLC變頻(pin)控制(zhi)柜(ju)面板上設有變頻(pin)調(diao)(diao)速(su)(su)(su)用電位(wei)器(qi)，可以(yi)(yi)根據(ju)操(cao)作人員輸送頻(pin)率，向電機(ji)輸送指令信號，控制(zhi)電機(ji)運行速(su)(su)(su)度，并且在部分(fen)產品(pin)設有工頻(pin)切換功(gong)能，以(yi)(yi)確保變頻(pin)器(qi)出現故障時，可以(yi)(yi)通過裝置實現最(zui)低故障發生，減少設備出現損(sun)壞(huai)次數。 

國家發改委啟動的(de)十(shi)大重點節能(neng)工程之一就是電機(ji)系(xi)(xi)統節能(neng)，并要(yao)求：推廣變(bian)頻(pin)(pin)調速節能(neng)技術，風機(ji)、水泵、壓縮機(ji)等通用(yong)機(ji)械系(xi)(xi)統采(cai)用(yong)變(bian)頻(pin)(pin)調速節能(neng)措施，工業機(ji)械采(cai)用(yong)交流電動機(ji)變(bian)頻(pin)(pin)調速技術；制(zhi)定相關(guan)經濟(ji)激勵政策(ce)、完善電機(ji)能(neng)效(xiao)標準體系(xi)(xi)等配(pei)套措施；“十(shi)一五”期間，實(shi)現(xian)電機(ji)系(xi)(xi)統運行效(xiao)率(lv)提(ti)高2個百分點，形成年節電能(neng)力200億千瓦時。 

為推動全(quan)(quan)社會展開節能(neng)(neng)降(jiang)耗，緩解能(neng)(neng)源(yuan)瓶頸(jing)的(de)制約，建設(she)節能(neng)(neng)型社會，國家(jia)發改委(wei)制定了《節能(neng)(neng)中長期專(zhuan)項規(gui)劃》，并(bing)在2004年11月25日向全(quan)(quan)社會發布(bu)。該“規(gui)劃”明確指出：能(neng)(neng)源(yuan)是(shi)戰略資源(yuan)，是(shi)全(quan)(quan)面(mian)建設(she)小(xiao)康社會的(de)重要物質基礎，必須堅持節約優先。 

隨(sui)著電(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)子技(ji)術和(he)開(kai)(kai)(kai)關行業的(de)飛速發展，電(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)子設備(bei)(bei)與人們的(de)工作(zuo)、生活(huo)的(de)關系(xi)日益(yi)密切，而(er)電(dian)(dian)(dian)(dian)(dian)(dian)子設備(bei)(bei)都(dou)(dou)離不開(kai)(kai)(kai)可(ke)靠的(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，進(jin)入80年代(dai)(dai)計(ji)算機(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)全面實現了(le)開(kai)(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)化(hua)，率先(xian)完成(cheng)(cheng)計(ji)算機(ji)(ji)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)換代(dai)(dai)，進(jin)入90年代(dai)(dai)開(kai)(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相繼進(jin)入各種(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)子、電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)設備(bei)(bei)領域，程控(kong)交換機(ji)(ji)、通訊(xun)、電(dian)(dian)(dian)(dian)(dian)(dian)子檢測設備(bei)(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)、控(kong)制設備(bei)(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)等(deng)都(dou)(dou)已廣泛地使用了(le)開(kai)(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，更(geng)促(cu)進(jin)了(le)開(kai)(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)技(ji)術的(de)迅速發展。開(kai)(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)是(shi)利用現代(dai)(dai)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)子技(ji)術，控(kong)制開(kai)(kai)(kai)關晶體管開(kai)(kai)(kai)通和(he)關斷(duan)的(de)時間比(bi)率，維持穩定輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)一(yi)種(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，開(kai)(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)一(yi)般由脈沖寬度調制（PWM）控(kong)制IC和(he)MOSFET構成(cheng)(cheng)。開(kai)(kai)(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)線性電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相比(bi)，二(er)者的(de)成(cheng)(cheng)本都(dou)(dou)隨(sui)著輸(shu)出(chu)功率的(de)增加(jia)而(er)增長，但二(er)者增長速率各異(yi)。