大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在(zai)市(shi)場(chang)(chang)中引起銷(xiao)售熱潮，其功能全(quan)面特點是(shi)起到很大(da)作用，不同功能迎合到市(shi)場(chang)(chang)不同用戶群體，迅速占據到各(ge)大(da)市(shi)場(chang)(chang)空間。以下就來為大(da)家全(quan)面介紹PLC變頻控(kong)制柜功能信息內容： 

1、電(dian)(dian)源(yuan)切換與保護(hu)功能，PLC變頻(pin)控制(zhi)柜通常設(she)計有短路器(qi)元件，連(lian)接著進線電(dian)(dian)源(yuan)，可(ke)以幫助變頻(pin)設(she)備完(wan)成電(dian)(dian)路通斷控制(zhi)，并能夠在電(dian)(dian)路和變頻(pin)器(qi)出現(xian)短路或是運(yun)行(xing)過載(zai)時給予(yu)保護(hu)，解決設(she)備在運(yun)行(xing)中會發生電(dian)(dian)力輸送安全問題(ti)，對(dui)操(cao)控人(ren)員人(ren)身安全起到保護(hu)。 

2、變(bian)頻調速功(gong)能，PLC變(bian)頻控制(zhi)柜面板(ban)上設有變(bian)頻調速用(yong)電(dian)(dian)位器，可以(yi)根(gen)據(ju)操作人員輸(shu)送頻率，向電(dian)(dian)機輸(shu)送指(zhi)令信號，控制(zhi)電(dian)(dian)機運行速度，并(bing)且在部分產品設有工頻切換功(gong)能，以(yi)確保變(bian)頻器出現故(gu)障(zhang)時，可以(yi)通過裝置實現最低(di)故(gu)障(zhang)發生，減(jian)少(shao)設備(bei)出現損壞次數。 

國家(jia)發改委(wei)啟動的十大重點節(jie)(jie)能(neng)工程之一(yi)就(jiu)是電(dian)機(ji)系(xi)(xi)統節(jie)(jie)能(neng)，并要求(qiu)：推(tui)廣變頻調速節(jie)(jie)能(neng)技(ji)術，風機(ji)、水泵(beng)、壓縮機(ji)等通用機(ji)械系(xi)(xi)統采用變頻調速節(jie)(jie)能(neng)措施，工業機(ji)械采用交流(liu)電(dian)動機(ji)變頻調速技(ji)術；制定相(xiang)關經濟激勵(li)政策、完善電(dian)機(ji)能(neng)效(xiao)標準(zhun)體系(xi)(xi)等配(pei)套措施；“十一(yi)五(wu)”期間，實現電(dian)機(ji)系(xi)(xi)統運行效(xiao)率提(ti)高(gao)2個百分點，形(xing)成年節(jie)(jie)電(dian)能(neng)力200億千瓦時。 

為推動全社會(hui)展開(kai)節(jie)能(neng)(neng)(neng)降耗，緩解(jie)能(neng)(neng)(neng)源瓶(ping)頸(jing)的制約(yue)，建設(she)節(jie)能(neng)(neng)(neng)型社會(hui)，國家發(fa)改委制定了《節(jie)能(neng)(neng)(neng)中長期專(zhuan)項規劃》，并在2004年11月25日(ri)向全社會(hui)發(fa)布(bu)。該(gai)“規劃”明確指出(chu)：能(neng)(neng)(neng)源是(shi)戰(zhan)略資源，是(shi)全面建設(she)小康社會(hui)的重要物質基礎，必須堅持節(jie)約(yue)優先。 

隨著(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)技術(shu)和(he)(he)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)行業的(de)飛(fei)速(su)(su)發展(zhan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)設(she)備與人們的(de)工作、生活的(de)關(guan)(guan)(guan)系(xi)日益密(mi)切，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)設(she)備都(dou)離不開(kai)(kai)(kai)(kai)可靠的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，進入80年代(dai)(dai)計算機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)全面(mian)實現(xian)了開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)化，率(lv)先完成計算機(ji)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)換代(dai)(dai)，進入90年代(dai)(dai)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相繼進入各種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器設(she)備領(ling)域，程(cheng)控交換機(ji)、通(tong)訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)檢(jian)測(ce)設(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)、控制(zhi)設(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)等(deng)都(dou)已廣泛地使(shi)用了開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，更促進了開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)技術(shu)的(de)迅(xun)速(su)(su)發展(zhan)。開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)是利用現(xian)代(dai)(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)技術(shu)，控制(zhi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)晶(jing)體(ti)管(guan)開(kai)(kai)(kai)(kai)通(tong)和(he)(he)關(guan)(guan)(guan)斷的(de)時間比率(lv)，維持(chi)穩定(ding)輸出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)一種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)一般由脈沖寬度調制(zhi)（PWM）控制(zhi)IC和(he)(he)MOSFET構成。開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)(he)線性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相比，二者(zhe)的(de)成本都(dou)隨著(zhu)輸出功(gong)率(lv)的(de)增(zeng)加而增(zeng)長(chang)，但(dan)二者(zhe)增(zeng)長(chang)速(su)(su)率(lv)各異(yi)。