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)場中引起銷售熱潮，其功(gong)能(neng)全(quan)面特點是(shi)起到很大作用(yong)，不同功(gong)能(neng)迎(ying)合(he)到市(shi)場不同用(yong)戶群體，迅速占據到各大市(shi)場空間。以下就(jiu)來為(wei)大家(jia)全(quan)面介紹(shao)PLC變頻控制柜功(gong)能(neng)信息內(nei)容： 

1、電(dian)(dian)源切(qie)換(huan)與保護(hu)(hu)功能，PLC變頻(pin)控制(zhi)柜通常設計有短路(lu)器元件，連接(jie)著(zhu)進線電(dian)(dian)源，可(ke)以(yi)幫助變頻(pin)設備完成電(dian)(dian)路(lu)通斷控制(zhi)，并(bing)能夠(gou)在(zai)電(dian)(dian)路(lu)和(he)變頻(pin)器出現短路(lu)或是(shi)運行(xing)過載時給予保護(hu)(hu)，解決設備在(zai)運行(xing)中(zhong)會發生電(dian)(dian)力輸送安(an)(an)全問題，對操控人員人身(shen)安(an)(an)全起到保護(hu)(hu)。 

2、變(bian)(bian)頻(pin)調(diao)速(su)功能，PLC變(bian)(bian)頻(pin)控(kong)(kong)制柜面板(ban)上設有(you)(you)變(bian)(bian)頻(pin)調(diao)速(su)用電位(wei)器(qi)，可以根據操作(zuo)人員輸送頻(pin)率，向電機輸送指令信(xin)號，控(kong)(kong)制電機運行速(su)度(du)，并(bing)且在(zai)部分產品設有(you)(you)工頻(pin)切換功能，以確(que)保變(bian)(bian)頻(pin)器(qi)出(chu)(chu)現故障時，可以通過裝置實現最低故障發生，減少設備(bei)出(chu)(chu)現損壞次數。 

國家發改委啟動的(de)十(shi)大重點節能(neng)工(gong)程(cheng)之一就是電(dian)機系統節能(neng)，并要求：推廣(guang)變頻調速節能(neng)技(ji)術，風機、水(shui)泵(beng)、壓縮(suo)機等通用機械系統采(cai)用變頻調速節能(neng)措施(shi)(shi)，工(gong)業機械采(cai)用交流電(dian)動機變頻調速技(ji)術；制定相關經(jing)濟激(ji)勵政策(ce)、完善(shan)電(dian)機能(neng)效(xiao)標準體系等配套措施(shi)(shi)；“十(shi)一五(wu)”期間，實現電(dian)機系統運行效(xiao)率提高2個百分點，形成年節電(dian)能(neng)力200億千瓦(wa)時。 

為(wei)推動全(quan)社會展開節(jie)能(neng)降耗，緩解(jie)能(neng)源瓶(ping)頸的(de)制(zhi)約，建設節(jie)能(neng)型社會，國(guo)家(jia)發改(gai)委(wei)制(zhi)定了《節(jie)能(neng)中長期專(zhuan)項規劃》，并在2004年11月25日(ri)向(xiang)全(quan)社會發布。該“規劃”明確指出：能(neng)源是戰略資源，是全(quan)面(mian)建設小康社會的(de)重(zhong)要物質基礎，必須堅(jian)持節(jie)約優先。 

隨著(zhu)電(dian)(dian)力(li)(li)電(dian)(dian)子(zi)技術和開(kai)關(guan)(guan)(guan)(guan)(guan)行業的(de)飛速(su)發(fa)展，電(dian)(dian)力(li)(li)電(dian)(dian)子(zi)設(she)備(bei)與人(ren)們的(de)工(gong)作(zuo)、生(sheng)活的(de)關(guan)(guan)(guan)(guan)(guan)系日益密切(qie)，而(er)(er)電(dian)(dian)子(zi)設(she)備(bei)都(dou)離(li)不開(kai)可靠(kao)的(de)電(dian)(dian)源(yuan)(yuan)，進(jin)入(ru)(ru)80年代(dai)計(ji)算(suan)機電(dian)(dian)源(yuan)(yuan)全面實現(xian)了(le)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)源(yuan)(yuan)化(hua)，率(lv)先完成計(ji)算(suan)機的(de)電(dian)(dian)源(yuan)(yuan)換(huan)代(dai)，進(jin)入(ru)(ru)90年代(dai)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)源(yuan)(yuan)相(xiang)繼進(jin)入(ru)(ru)各(ge)種(zhong)電(dian)(dian)子(zi)、電(dian)(dian)器設(she)備(bei)領域，程控交(jiao)換(huan)機、通(tong)訊、電(dian)(dian)子(zi)檢(jian)測設(she)備(bei)電(dian)(dian)源(yuan)(yuan)、控制設(she)備(bei)電(dian)(dian)源(yuan)(yuan)等都(dou)已廣泛地使用(yong)了(le)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)源(yuan)(yuan)，更(geng)促進(jin)了(le)開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)源(yuan)(yuan)技術的(de)迅速(su)發(fa)展。開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)源(yuan)(yuan)是(shi)利(li)用(yong)現(xian)代(dai)電(dian)(dian)力(li)(li)電(dian)(dian)子(zi)技術，控制開(kai)關(guan)(guan)(guan)(guan)(guan)晶體(ti)管開(kai)通(tong)和關(guan)(guan)(guan)(guan)(guan)斷的(de)時間比率(lv)，維(wei)持穩(wen)定輸出電(dian)(dian)壓的(de)一種(zhong)電(dian)(dian)源(yuan)(yuan)，開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)源(yuan)(yuan)一般由(you)脈(mo)沖寬度調制（PWM）控制IC和MOSFET構成。開(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)源(yuan)(yuan)和線性電(dian)(dian)源(yuan)(yuan)相(xiang)比，二(er)者的(de)成本都(dou)隨著(zhu)輸出功率(lv)的(de)增(zeng)加而(er)(er)增(zeng)長，但(dan)二(er)者增(zeng)長速(su)率(lv)各(ge)異。