大連控制柜、變頻控制箱和大連PLC變頻控制柜出(chu)現(xian)在(zai)市場中引起銷(xiao)售(shou)熱潮，其功能全面(mian)特點是起到很(hen)大作用(yong)，不同功能迎合(he)到市場不同用(yong)戶群(qun)體(ti)，迅速占據到各大市場空(kong)間。以下就來為大家全面(mian)介紹PLC變頻(pin)控制柜功能信(xin)息內容： 

1、電(dian)源(yuan)(yuan)切換與保(bao)護(hu)功能(neng)(neng)，PLC變(bian)頻控制(zhi)柜通(tong)常設(she)計(ji)有(you)短(duan)路(lu)(lu)器元件，連(lian)接(jie)著進線電(dian)源(yuan)(yuan)，可以幫助變(bian)頻設(she)備完成電(dian)路(lu)(lu)通(tong)斷控制(zhi)，并能(neng)(neng)夠在電(dian)路(lu)(lu)和變(bian)頻器出(chu)現短(duan)路(lu)(lu)或(huo)是(shi)運行(xing)過(guo)載(zai)時給予保(bao)護(hu)，解決設(she)備在運行(xing)中(zhong)會發生電(dian)力輸送安全(quan)問題，對(dui)操控人(ren)員人(ren)身安全(quan)起到保(bao)護(hu)。 

2、變(bian)頻(pin)(pin)調速(su)功(gong)能(neng)，PLC變(bian)頻(pin)(pin)控(kong)制(zhi)柜面板上設有變(bian)頻(pin)(pin)調速(su)用電位器，可以根(gen)據操作人員(yuan)輸(shu)(shu)送頻(pin)(pin)率，向電機輸(shu)(shu)送指(zhi)令信號，控(kong)制(zhi)電機運(yun)行速(su)度，并且在(zai)部(bu)分產品設有工(gong)頻(pin)(pin)切換功(gong)能(neng)，以確保變(bian)頻(pin)(pin)器出現故障時，可以通過(guo)裝置實(shi)現最低故障發生，減少(shao)設備(bei)出現損壞次數(shu)。 

國家發改(gai)委啟動的十(shi)大重點節(jie)能(neng)(neng)工(gong)程之一就是電(dian)(dian)機(ji)系統(tong)節(jie)能(neng)(neng)，并要(yao)求：推廣(guang)變頻(pin)調速(su)(su)節(jie)能(neng)(neng)技(ji)術，風機(ji)、水泵(beng)、壓縮機(ji)等通用機(ji)械系統(tong)采(cai)用變頻(pin)調速(su)(su)節(jie)能(neng)(neng)措(cuo)施(shi)，工(gong)業機(ji)械采(cai)用交流(liu)電(dian)(dian)動機(ji)變頻(pin)調速(su)(su)技(ji)術；制(zhi)定相(xiang)關經(jing)濟激勵(li)政策、完善電(dian)(dian)機(ji)能(neng)(neng)效標準體系等配套(tao)措(cuo)施(shi)；“十(shi)一五”期間，實現電(dian)(dian)機(ji)系統(tong)運(yun)行效率提高(gao)2個百分點，形成年節(jie)電(dian)(dian)能(neng)(neng)力(li)200億千瓦時(shi)。 

為推動全(quan)(quan)(quan)社會展開節(jie)能(neng)降耗，緩解能(neng)源瓶頸(jing)的制約，建(jian)設(she)節(jie)能(neng)型社會，國家發改委制定了《節(jie)能(neng)中長期專項規劃》，并在(zai)2004年11月25日向(xiang)全(quan)(quan)(quan)社會發布(bu)。該“規劃”明確指出(chu)：能(neng)源是(shi)戰略資(zi)源，是(shi)全(quan)(quan)(quan)面建(jian)設(she)小康社會的重(zhong)要(yao)物(wu)質基礎，必(bi)須堅持節(jie)約優先。 

隨著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子技術(shu)和(he)開(kai)(kai)(kai)關(guan)(guan)(guan)行業的(de)飛速發展，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子設(she)(she)備(bei)與人們(men)的(de)工作、生活的(de)關(guan)(guan)(guan)系日益密切，而(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子設(she)(she)備(bei)都(dou)離不開(kai)(kai)(kai)可(ke)靠的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，進入(ru)80年(nian)代計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)全面實現(xian)(xian)了開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)化，率先完成(cheng)計算機的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)換代，進入(ru)90年(nian)代開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼進入(ru)各種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)設(she)(she)備(bei)領(ling)域，程控(kong)(kong)交(jiao)換機、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子檢測設(she)(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、控(kong)(kong)制設(she)(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)等都(dou)已廣泛地使用(yong)了開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進了開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)技術(shu)的(de)迅速發展。開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)是(shi)利用(yong)現(xian)(xian)代電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子技術(shu)，控(kong)(kong)制開(kai)(kai)(kai)關(guan)(guan)(guan)晶體管開(kai)(kai)(kai)通和(he)關(guan)(guan)(guan)斷的(de)時間比率，維(wei)持穩(wen)定輸出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)一(yi)種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)一(yi)般(ban)由脈沖寬度調制（PWM）控(kong)(kong)制IC和(he)MOSFET構成(cheng)。開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)線性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相比，二者的(de)成(cheng)本都(dou)隨著輸出(chu)功率的(de)增(zeng)加而(er)增(zeng)長，但(dan)二者增(zeng)長速率各異。