大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市(shi)(shi)場中引(yin)起銷售熱(re)潮，其功(gong)能全面特點是(shi)起到很大(da)作用，不(bu)同(tong)功(gong)能迎合到市(shi)(shi)場不(bu)同(tong)用戶(hu)群體，迅速占據到各大(da)市(shi)(shi)場空間。以下就來為(wei)大(da)家(jia)全面介紹PLC變(bian)頻控制柜功(gong)能信(xin)息內(nei)容： 

1、電源切換與保(bao)護功(gong)能(neng)，PLC變(bian)頻控制(zhi)柜通常設(she)計有短路(lu)器(qi)元件，連接著進線(xian)電源，可以幫助變(bian)頻設(she)備(bei)完成電路(lu)通斷控制(zhi)，并能(neng)夠在電路(lu)和變(bian)頻器(qi)出現短路(lu)或(huo)是運行過載時給(gei)予保(bao)護，解(jie)決設(she)備(bei)在運行中會發(fa)生電力輸送安(an)全問題，對操控人員人身(shen)安(an)全起到保(bao)護。 

2、變(bian)頻調(diao)速(su)功(gong)能，PLC變(bian)頻控制(zhi)柜面板上設(she)有(you)變(bian)頻調(diao)速(su)用(yong)電位(wei)器，可以(yi)根(gen)據操作人員輸(shu)送(song)頻率，向電機輸(shu)送(song)指(zhi)令信號，控制(zhi)電機運行速(su)度，并且(qie)在部分產(chan)品設(she)有(you)工(gong)頻切換功(gong)能，以(yi)確保變(bian)頻器出(chu)現(xian)故(gu)障(zhang)時，可以(yi)通(tong)過(guo)裝(zhuang)置實(shi)現(xian)最低故(gu)障(zhang)發生，減少設(she)備(bei)出(chu)現(xian)損壞次數。 

國家發(fa)改(gai)委啟(qi)動(dong)的十(shi)大重點節(jie)(jie)能(neng)工程(cheng)之(zhi)一(yi)就(jiu)是電(dian)(dian)(dian)機(ji)(ji)系統節(jie)(jie)能(neng)，并(bing)要求：推(tui)廣變頻調速節(jie)(jie)能(neng)技(ji)術(shu)，風機(ji)(ji)、水泵、壓(ya)縮機(ji)(ji)等(deng)通(tong)用(yong)機(ji)(ji)械(xie)系統采(cai)用(yong)變頻調速節(jie)(jie)能(neng)措施，工業機(ji)(ji)械(xie)采(cai)用(yong)交流電(dian)(dian)(dian)動(dong)機(ji)(ji)變頻調速技(ji)術(shu)；制定相關經濟(ji)激勵政(zheng)策、完善電(dian)(dian)(dian)機(ji)(ji)能(neng)效標(biao)準體系等(deng)配套(tao)措施；“十(shi)一(yi)五(wu)”期間(jian)，實現電(dian)(dian)(dian)機(ji)(ji)系統運(yun)行(xing)效率提高2個百分點，形(xing)成年節(jie)(jie)電(dian)(dian)(dian)能(neng)力200億(yi)千(qian)瓦時。 

為推動全(quan)(quan)社會展開(kai)節(jie)(jie)能(neng)降(jiang)耗，緩解能(neng)源瓶頸的制約，建設節(jie)(jie)能(neng)型(xing)社會，國家(jia)發(fa)改委制定了(le)《節(jie)(jie)能(neng)中長(chang)期專項規(gui)劃(hua)(hua)》，并在2004年11月25日(ri)向全(quan)(quan)社會發(fa)布。該(gai)“規(gui)劃(hua)(hua)”明確指(zhi)出：能(neng)源是戰(zhan)略資源，是全(quan)(quan)面建設小康社會的重(zhong)要(yao)物質基礎(chu)，必須(xu)堅(jian)持節(jie)(jie)約優先(xian)。 

隨(sui)著(zhu)電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)和開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)行(xing)業的(de)(de)(de)飛(fei)速發(fa)(fa)展，電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子(zi)設備與人們的(de)(de)(de)工作(zuo)、生活的(de)(de)(de)關(guan)(guan)(guan)系日(ri)益密切，而電(dian)(dian)(dian)(dian)子(zi)設備都離(li)不開(kai)(kai)(kai)(kai)可靠(kao)的(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)，進(jin)入80年代計算(suan)(suan)機(ji)(ji)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)全面(mian)實現了(le)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)化(hua)，率(lv)(lv)先(xian)完成計算(suan)(suan)機(ji)(ji)的(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)換(huan)代，進(jin)入90年代開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)相(xiang)繼進(jin)入各種電(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)器設備領域，程控(kong)交換(huan)機(ji)(ji)、通訊、電(dian)(dian)(dian)(dian)子(zi)檢(jian)測設備電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)、控(kong)制(zhi)(zhi)設備電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)等(deng)都已廣泛地使(shi)用了(le)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)，更促進(jin)了(le)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)技(ji)術(shu)(shu)的(de)(de)(de)迅速發(fa)(fa)展。開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)是(shi)利用現代電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)，控(kong)制(zhi)(zhi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)晶體管開(kai)(kai)(kai)(kai)通和關(guan)(guan)(guan)斷的(de)(de)(de)時(shi)間(jian)比(bi)率(lv)(lv)，維持穩定輸出(chu)(chu)電(dian)(dian)(dian)(dian)壓(ya)的(de)(de)(de)一種電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)，開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)一般由脈沖寬(kuan)度調制(zhi)(zhi)（PWM）控(kong)制(zhi)(zhi)IC和MOSFET構成。開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)和線(xian)性電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)相(xiang)比(bi)，二者的(de)(de)(de)成本(ben)都隨(sui)著(zhu)輸出(chu)(chu)功率(lv)(lv)的(de)(de)(de)增(zeng)(zeng)加而增(zeng)(zeng)長，但(dan)二者增(zeng)(zeng)長速率(lv)(lv)各異(yi)。