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)起銷(xiao)售熱潮，其功能全面(mian)特點是(shi)起到(dao)很(hen)大作(zuo)用，不同功能迎合到(dao)市場不同用戶群體，迅速占據到(dao)各大市場空間。以(yi)下就來(lai)為(wei)大家全面(mian)介紹(shao)PLC變頻控制柜(ju)功能信息(xi)內(nei)容： 

1、電源切換與(yu)保護功能，PLC變頻控(kong)制(zhi)柜通常設計有短(duan)路(lu)器元件(jian)，連接著(zhu)進線(xian)電源，可(ke)以幫助變頻設備完成電路(lu)通斷控(kong)制(zhi)，并能夠(gou)在電路(lu)和變頻器出現短(duan)路(lu)或(huo)是運(yun)行(xing)過載時給予保護，解決設備在運(yun)行(xing)中(zhong)會發(fa)生(sheng)電力輸送(song)安(an)全問題，對(dui)操(cao)控(kong)人員人身安(an)全起到保護。 

2、變頻(pin)調(diao)速功能，PLC變頻(pin)控制柜面(mian)板上設有變頻(pin)調(diao)速用電位器(qi)，可(ke)以根據操(cao)作人員(yuan)輸(shu)(shu)送頻(pin)率，向電機(ji)輸(shu)(shu)送指令信號，控制電機(ji)運行速度，并且在部分產品(pin)設有工頻(pin)切換功能，以確保變頻(pin)器(qi)出現故障時，可(ke)以通過裝置實(shi)現最低故障發(fa)生，減(jian)少設備出現損壞次數。 

國家發改委(wei)啟動的十大重(zhong)點(dian)(dian)節(jie)能(neng)工(gong)程之一(yi)就是電機系(xi)統(tong)節(jie)能(neng)，并要求：推廣變頻調(diao)(diao)速(su)節(jie)能(neng)技(ji)術，風機、水泵、壓縮機等通用機械系(xi)統(tong)采用變頻調(diao)(diao)速(su)節(jie)能(neng)措施，工(gong)業機械采用交流電動機變頻調(diao)(diao)速(su)技(ji)術；制定(ding)相(xiang)關經濟激勵政策(ce)、完善電機能(neng)效標準體系(xi)等配套措施；“十一(yi)五”期(qi)間，實現電機系(xi)統(tong)運行效率提(ti)高2個百分點(dian)(dian)，形成年節(jie)電能(neng)力200億千瓦時。 

為推動全社會(hui)展開節能(neng)降耗，緩解(jie)能(neng)源(yuan)瓶頸的(de)制約(yue)，建設節能(neng)型社會(hui)，國家發改委(wei)制定了(le)《節能(neng)中長期專項規(gui)劃》，并在(zai)2004年11月25日向全社會(hui)發布(bu)。該“規(gui)劃”明確指出：能(neng)源(yuan)是戰略資源(yuan)，是全面建設小康社會(hui)的(de)重(zhong)要物質基礎，必須堅持節約(yue)優先。 

隨著(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)子技術和(he)開(kai)關(guan)(guan)(guan)(guan)行業的(de)(de)(de)飛速(su)發展(zhan)，電(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)子設(she)備(bei)與人(ren)們的(de)(de)(de)工作(zuo)、生活(huo)的(de)(de)(de)關(guan)(guan)(guan)(guan)系(xi)日益密切，而電(dian)(dian)(dian)(dian)(dian)(dian)子設(she)備(bei)都(dou)(dou)離(li)不開(kai)可靠的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，進(jin)(jin)(jin)入(ru)80年代(dai)計算(suan)機電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)全面實現了開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)化(hua)，率先完成計算(suan)機的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)換代(dai)，進(jin)(jin)(jin)入(ru)90年代(dai)開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼(ji)進(jin)(jin)(jin)入(ru)各種電(dian)(dian)(dian)(dian)(dian)(dian)子、電(dian)(dian)(dian)(dian)(dian)(dian)器設(she)備(bei)領域，程控交換機、通(tong)訊、電(dian)(dian)(dian)(dian)(dian)(dian)子檢測設(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、控制(zhi)設(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)等都(dou)(dou)已廣泛地使用了開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進(jin)(jin)(jin)了開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)技術的(de)(de)(de)迅速(su)發展(zhan)。開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)是利用現代(dai)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)子技術，控制(zhi)開(kai)關(guan)(guan)(guan)(guan)晶體管開(kai)通(tong)和(he)關(guan)(guan)(guan)(guan)斷(duan)的(de)(de)(de)時(shi)間(jian)比率，維持穩(wen)定輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)一(yi)種電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)一(yi)般(ban)由(you)脈沖(chong)寬度調制(zhi)（PWM）控制(zhi)IC和(he)MOSFET構成。開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)線性電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相比，二者的(de)(de)(de)成本都(dou)(dou)隨著(zhu)輸(shu)出(chu)功率的(de)(de)(de)增加而增長(chang)(chang)，但二者增長(chang)(chang)速(su)率各異。