大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市場中引(yin)起(qi)銷售(shou)熱潮，其功(gong)能(neng)全面(mian)特點是(shi)起(qi)到很(hen)大(da)(da)作用，不同(tong)功(gong)能(neng)迎合到市場不同(tong)用戶(hu)群體，迅速占據(ju)到各(ge)大(da)(da)市場空間(jian)。以下就(jiu)來為大(da)(da)家全面(mian)介紹PLC變頻控制(zhi)柜(ju)功(gong)能(neng)信息內容： 

1、電(dian)源(yuan)切換與(yu)保(bao)(bao)護(hu)功能(neng)，PLC變頻(pin)控(kong)制(zhi)柜通常設(she)(she)計有(you)短(duan)(duan)路(lu)器(qi)元件，連接著進線(xian)電(dian)源(yuan)，可以(yi)幫助變頻(pin)設(she)(she)備完成電(dian)路(lu)通斷控(kong)制(zhi)，并(bing)能(neng)夠在電(dian)路(lu)和(he)變頻(pin)器(qi)出現短(duan)(duan)路(lu)或(huo)是運行過(guo)載時給予保(bao)(bao)護(hu)，解決設(she)(she)備在運行中(zhong)會發生電(dian)力(li)輸送安全(quan)問題，對操控(kong)人員人身安全(quan)起到保(bao)(bao)護(hu)。 

2、變(bian)(bian)(bian)頻(pin)調速功能，PLC變(bian)(bian)(bian)頻(pin)控制柜(ju)面板上設(she)有變(bian)(bian)(bian)頻(pin)調速用電(dian)位器(qi)，可(ke)以(yi)根據操(cao)作(zuo)人(ren)員輸送頻(pin)率，向電(dian)機輸送指令(ling)信號，控制電(dian)機運行速度，并(bing)且在(zai)部(bu)分產品設(she)有工頻(pin)切換功能，以(yi)確保變(bian)(bian)(bian)頻(pin)器(qi)出現(xian)故障(zhang)時，可(ke)以(yi)通過裝置實現(xian)最低故障(zhang)發生，減少設(she)備出現(xian)損壞次數。 

國家發(fa)改委啟(qi)動(dong)(dong)的十(shi)大(da)重點(dian)節能(neng)工程(cheng)之一就(jiu)是(shi)電機(ji)(ji)系(xi)統節能(neng)，并要求：推廣變頻調速節能(neng)技術(shu)，風機(ji)(ji)、水泵、壓縮機(ji)(ji)等(deng)通用機(ji)(ji)械系(xi)統采用變頻調速節能(neng)措施，工業機(ji)(ji)械采用交(jiao)流電動(dong)(dong)機(ji)(ji)變頻調速技術(shu)；制(zhi)定相(xiang)關經濟激(ji)勵政(zheng)策、完善(shan)電機(ji)(ji)能(neng)效標準體系(xi)等(deng)配套措施；“十(shi)一五”期間，實現電機(ji)(ji)系(xi)統運行效率提高2個百分點(dian)，形(xing)成年節電能(neng)力200億千瓦(wa)時。 

為推動(dong)全(quan)(quan)社(she)會(hui)展開(kai)節能(neng)降耗，緩解能(neng)源瓶頸的(de)制約(yue)，建設節能(neng)型社(she)會(hui)，國(guo)家發(fa)改委制定了《節能(neng)中長期專項規劃》，并在2004年11月(yue)25日(ri)向(xiang)全(quan)(quan)社(she)會(hui)發(fa)布。該“規劃”明確指出：能(neng)源是戰略資(zi)源，是全(quan)(quan)面(mian)建設小康社(she)會(hui)的(de)重要物質基礎，必須堅持節約(yue)優先。 

隨(sui)著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技術和(he)(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)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設(she)備(bei)與人們(men)的(de)工作、生(sheng)活的(de)關(guan)(guan)(guan)系(xi)日益(yi)密(mi)切，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設(she)備(bei)都離不開(kai)(kai)(kai)可靠(kao)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，進(jin)入(ru)80年(nian)代(dai)計(ji)算(suan)機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)全(quan)面實現了開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)化，率先完(wan)成(cheng)(cheng)計(ji)算(suan)機的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)換代(dai)，進(jin)入(ru)90年(nian)代(dai)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼(ji)進(jin)入(ru)各種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器設(she)備(bei)領域(yu)，程控交換機、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)檢測設(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、控制設(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)等都已廣泛地(di)使用(yong)了開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進(jin)了開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)技術的(de)迅速發展。開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)是利用(yong)現代(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技術，控制開(kai)(kai)(kai)關(guan)(guan)(guan)晶體管(guan)開(kai)(kai)(kai)通和(he)(he)關(guan)(guan)(guan)斷的(de)時間比率，維持穩定輸(shu)出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)一(yi)(yi)種電(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)源(yuan)(yuan)一(yi)(yi)般由(you)脈沖寬度調制（PWM）控制IC和(he)(he)MOSFET構成(cheng)(cheng)。開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)(he)線性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相比，二者(zhe)的(de)成(cheng)(cheng)本都隨(sui)著輸(shu)出功(gong)率的(de)增加(jia)而增長，但二者(zhe)增長速率各異。