大連控制柜、變頻控制箱和大連PLC變頻控制柜出現(xian)在市(shi)(shi)場(chang)中引起銷售熱潮，其(qi)功(gong)能(neng)(neng)全面(mian)特點是起到很大作用，不同功(gong)能(neng)(neng)迎合(he)到市(shi)(shi)場(chang)不同用戶群體，迅速占據到各大市(shi)(shi)場(chang)空間(jian)。以下就(jiu)來為大家全面(mian)介(jie)紹PLC變頻(pin)控制柜功(gong)能(neng)(neng)信息內容： 

1、電(dian)源切換與保護功能(neng)，PLC變頻(pin)(pin)控制(zhi)柜通(tong)(tong)常設(she)計(ji)有(you)短路(lu)(lu)(lu)(lu)器(qi)元件，連接(jie)著(zhu)進線電(dian)源，可(ke)以幫(bang)助變頻(pin)(pin)設(she)備完(wan)成電(dian)路(lu)(lu)(lu)(lu)通(tong)(tong)斷控制(zhi)，并能(neng)夠在電(dian)路(lu)(lu)(lu)(lu)和變頻(pin)(pin)器(qi)出現(xian)短路(lu)(lu)(lu)(lu)或是運(yun)行過載時給予保護，解決設(she)備在運(yun)行中(zhong)會(hui)發生電(dian)力輸送(song)安全問題，對操控人(ren)員人(ren)身安全起到(dao)保護。 

2、變頻(pin)調(diao)速功(gong)能，PLC變頻(pin)控制柜面板(ban)上設有變頻(pin)調(diao)速用電(dian)(dian)位器(qi)，可以(yi)根據操(cao)作(zuo)人員輸送頻(pin)率，向電(dian)(dian)機輸送指令信號，控制電(dian)(dian)機運(yun)行(xing)速度(du)，并且在部分產(chan)品設有工頻(pin)切換功(gong)能，以(yi)確保變頻(pin)器(qi)出現(xian)故(gu)障時，可以(yi)通過裝(zhuang)置實現(xian)最低故(gu)障發生，減(jian)少(shao)設備出現(xian)損壞次(ci)數。 

國家(jia)發改(gai)委啟動的十大重點(dian)節(jie)能工(gong)程之(zhi)一就是電(dian)機(ji)(ji)系(xi)統節(jie)能，并要求：推廣變頻(pin)調速節(jie)能技(ji)術(shu)，風(feng)機(ji)(ji)、水泵、壓縮機(ji)(ji)等(deng)通用機(ji)(ji)械系(xi)統采(cai)(cai)用變頻(pin)調速節(jie)能措(cuo)施(shi)，工(gong)業(ye)機(ji)(ji)械采(cai)(cai)用交流電(dian)動機(ji)(ji)變頻(pin)調速技(ji)術(shu)；制定相關經濟激勵政策、完善(shan)電(dian)機(ji)(ji)能效標準體系(xi)等(deng)配套措(cuo)施(shi)；“十一五”期間，實現電(dian)機(ji)(ji)系(xi)統運行效率提高2個百分點(dian)，形成(cheng)年節(jie)電(dian)能力200億千(qian)瓦時(shi)。 

為(wei)推動全(quan)社(she)會展開節(jie)能降(jiang)耗，緩解能源瓶頸(jing)的(de)制(zhi)約，建設節(jie)能型社(she)會，國(guo)家發(fa)(fa)改委制(zhi)定了《節(jie)能中(zhong)長期專項規劃》，并在2004年11月25日向全(quan)社(she)會發(fa)(fa)布。該“規劃”明確指出：能源是(shi)戰略資源，是(shi)全(quan)面建設小康社(she)會的(de)重要物質基礎(chu)，必須(xu)堅持節(jie)約優先(xian)。 

隨(sui)著(zhu)電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)子(zi)技術(shu)(shu)和(he)(he)開(kai)(kai)關(guan)(guan)行業的(de)(de)飛速發展，電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)子(zi)設(she)備與人們(men)的(de)(de)工作、生(sheng)活的(de)(de)關(guan)(guan)系日(ri)益密切，而電(dian)(dian)(dian)(dian)子(zi)設(she)備都(dou)離不開(kai)(kai)可靠(kao)的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，進(jin)(jin)入(ru)80年代(dai)計算機電(dian)(dian)(dian)(dian)源(yuan)(yuan)全面(mian)實現了(le)開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)化，率先完(wan)成(cheng)計算機的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)換代(dai)，進(jin)(jin)入(ru)90年代(dai)開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼進(jin)(jin)入(ru)各(ge)種電(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)器(qi)設(she)備領(ling)域，程控交換機、通訊、電(dian)(dian)(dian)(dian)子(zi)檢(jian)測(ce)設(she)備電(dian)(dian)(dian)(dian)源(yuan)(yuan)、控制設(she)備電(dian)(dian)(dian)(dian)源(yuan)(yuan)等都(dou)已廣(guang)泛地(di)使(shi)用了(le)開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進(jin)(jin)了(le)開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)技術(shu)(shu)的(de)(de)迅(xun)速發展。開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)是利用現代(dai)電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)子(zi)技術(shu)(shu)，控制開(kai)(kai)關(guan)(guan)晶(jing)體管(guan)開(kai)(kai)通和(he)(he)關(guan)(guan)斷的(de)(de)時間比率，維持穩定(ding)輸出電(dian)(dian)(dian)(dian)壓的(de)(de)一種電(dian)(dian)(dian)(dian)源(yuan)(yuan)，開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)一般由脈沖寬度(du)調(diao)制（PWM）控制IC和(he)(he)MOSFET構成(cheng)。開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)(he)線性電(dian)(dian)(dian)(dian)源(yuan)(yuan)相比，二者的(de)(de)成(cheng)本都(dou)隨(sui)著(zhu)輸出功率的(de)(de)增加而增長，但二者增長速率各(ge)異。