大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在(zai)市場(chang)中引起銷售(shou)熱潮(chao)，其(qi)功(gong)(gong)能全面特點是起到很大(da)作用，不同(tong)功(gong)(gong)能迎(ying)合到市場(chang)不同(tong)用戶群體(ti)，迅速占據到各大(da)市場(chang)空間。以下(xia)就來為大(da)家全面介(jie)紹PLC變頻控制柜功(gong)(gong)能信息(xi)內(nei)容(rong)： 

1、電(dian)(dian)源(yuan)切換與(yu)保(bao)護(hu)功(gong)能，PLC變頻控(kong)制柜通(tong)常設計有短路(lu)(lu)器(qi)元件，連接著進(jin)線電(dian)(dian)源(yuan)，可以(yi)幫助變頻設備完成電(dian)(dian)路(lu)(lu)通(tong)斷控(kong)制，并能夠在電(dian)(dian)路(lu)(lu)和變頻器(qi)出(chu)現(xian)短路(lu)(lu)或是運(yun)行過載時(shi)給予保(bao)護(hu)，解決設備在運(yun)行中會發生電(dian)(dian)力輸送安全(quan)問(wen)題，對操控(kong)人(ren)(ren)員(yuan)人(ren)(ren)身(shen)安全(quan)起到(dao)保(bao)護(hu)。 

2、變(bian)頻(pin)(pin)(pin)調(diao)速功能，PLC變(bian)頻(pin)(pin)(pin)控制柜面板上設有變(bian)頻(pin)(pin)(pin)調(diao)速用電(dian)位器，可以根據(ju)操(cao)作人員輸送頻(pin)(pin)(pin)率，向(xiang)電(dian)機(ji)輸送指令信號，控制電(dian)機(ji)運(yun)行速度，并且在部分產(chan)品(pin)設有工頻(pin)(pin)(pin)切換(huan)功能，以確保變(bian)頻(pin)(pin)(pin)器出現故障時，可以通過(guo)裝置實(shi)現最低故障發生，減少設備出現損壞次數。 

國(guo)家發改(gai)委(wei)啟動(dong)的十大重點節(jie)能(neng)(neng)工程之一(yi)(yi)就是電(dian)(dian)機(ji)系(xi)統(tong)節(jie)能(neng)(neng)，并要求：推(tui)廣變(bian)頻(pin)(pin)調速(su)(su)(su)節(jie)能(neng)(neng)技(ji)術(shu)，風機(ji)、水泵、壓縮機(ji)等(deng)通用機(ji)械(xie)系(xi)統(tong)采用變(bian)頻(pin)(pin)調速(su)(su)(su)節(jie)能(neng)(neng)措施(shi)，工業機(ji)械(xie)采用交流電(dian)(dian)動(dong)機(ji)變(bian)頻(pin)(pin)調速(su)(su)(su)技(ji)術(shu)；制定相關經濟激(ji)勵政策(ce)、完善電(dian)(dian)機(ji)能(neng)(neng)效標準體系(xi)等(deng)配(pei)套措施(shi)；“十一(yi)(yi)五”期間(jian)，實現電(dian)(dian)機(ji)系(xi)統(tong)運行效率(lv)提高2個(ge)百(bai)分點，形成年節(jie)電(dian)(dian)能(neng)(neng)力200億千瓦時(shi)。 

為推動全(quan)社(she)會(hui)展開節(jie)能(neng)降耗，緩解能(neng)源(yuan)瓶頸的制約(yue)，建(jian)設(she)節(jie)能(neng)型社(she)會(hui)，國家發改委制定了《節(jie)能(neng)中(zhong)長(chang)期(qi)專項規劃》，并在2004年11月25日向全(quan)社(she)會(hui)發布。該“規劃”明確指出：能(neng)源(yuan)是戰略資源(yuan)，是全(quan)面建(jian)設(she)小康(kang)社(she)會(hui)的重要(yao)物質基礎，必(bi)須堅(jian)持節(jie)約(yue)優先(xian)。 

隨(sui)著電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子(zi)技術和(he)開(kai)(kai)(kai)關(guan)行業的(de)(de)飛速發展，電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子(zi)設(she)備(bei)與人們(men)的(de)(de)工作、生(sheng)活的(de)(de)關(guan)系日益密(mi)切，而(er)電(dian)(dian)(dian)(dian)子(zi)設(she)備(bei)都(dou)離不開(kai)(kai)(kai)可(ke)靠的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，進(jin)入(ru)(ru)(ru)80年代(dai)計算機(ji)電(dian)(dian)(dian)(dian)源(yuan)(yuan)全面實現了開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)化，率(lv)先完成計算機(ji)的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)換代(dai)，進(jin)入(ru)(ru)(ru)90年代(dai)開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼進(jin)入(ru)(ru)(ru)各(ge)種電(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)器(qi)設(she)備(bei)領(ling)域，程控(kong)交(jiao)換機(ji)、通(tong)訊(xun)、電(dian)(dian)(dian)(dian)子(zi)檢測設(she)備(bei)電(dian)(dian)(dian)(dian)源(yuan)(yuan)、控(kong)制(zhi)設(she)備(bei)電(dian)(dian)(dian)(dian)源(yuan)(yuan)等都(dou)已廣(guang)泛地使用(yong)(yong)了開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進(jin)了開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)技術的(de)(de)迅速發展。開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)是(shi)利用(yong)(yong)現代(dai)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子(zi)技術，控(kong)制(zhi)開(kai)(kai)(kai)關(guan)晶(jing)體(ti)管(guan)開(kai)(kai)(kai)通(tong)和(he)關(guan)斷的(de)(de)時間比率(lv)，維持穩定輸出電(dian)(dian)(dian)(dian)壓的(de)(de)一(yi)(yi)種電(dian)(dian)(dian)(dian)源(yuan)(yuan)，開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)一(yi)(yi)般由脈沖(chong)寬度(du)調制(zhi)（PWM）控(kong)制(zhi)IC和(he)MOSFET構成。開(kai)(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)線性電(dian)(dian)(dian)(dian)源(yuan)(yuan)相比，二者的(de)(de)成本都(dou)隨(sui)著輸出功率(lv)的(de)(de)增加而(er)增長，但二者增長速率(lv)各(ge)異(yi)。