大連控制柜、變頻控制箱和大連PLC變頻控制柜出現(xian)在市場(chang)(chang)(chang)中引起銷(xiao)售熱潮(chao)，其功能(neng)全(quan)面特(te)點是(shi)起到很大作用，不同(tong)功能(neng)迎合(he)到市場(chang)(chang)(chang)不同(tong)用戶(hu)群體，迅速占據(ju)到各(ge)大市場(chang)(chang)(chang)空(kong)間。以下就來為大家全(quan)面介紹PLC變(bian)頻(pin)控制(zhi)柜功能(neng)信(xin)息內容： 

1、電源切換與保(bao)護功能，PLC變(bian)(bian)頻控(kong)(kong)制柜(ju)通常設計有短路器(qi)元件(jian)，連接(jie)著(zhu)進線電源，可以幫助變(bian)(bian)頻設備完成電路通斷控(kong)(kong)制，并能夠在電路和(he)變(bian)(bian)頻器(qi)出現短路或(huo)是運行過載時給予保(bao)護，解(jie)決設備在運行中會發生電力(li)輸送安(an)全問題，對操控(kong)(kong)人員人身(shen)安(an)全起到(dao)保(bao)護。 

2、變(bian)頻(pin)調速功能(neng)，PLC變(bian)頻(pin)控制柜面板(ban)上設(she)有變(bian)頻(pin)調速用電(dian)(dian)位器，可(ke)(ke)以(yi)根據操作人員輸(shu)送頻(pin)率，向電(dian)(dian)機輸(shu)送指令信號，控制電(dian)(dian)機運(yun)行速度(du)，并且在部分產品設(she)有工頻(pin)切換功能(neng)，以(yi)確(que)保變(bian)頻(pin)器出現故障時，可(ke)(ke)以(yi)通過裝置(zhi)實(shi)現最低故障發(fa)生，減少設(she)備(bei)出現損(sun)壞次數。 

國家發改委啟(qi)動的十大重點節(jie)能(neng)(neng)工程之一就(jiu)是電(dian)機系統節(jie)能(neng)(neng)，并要求：推廣變(bian)頻調(diao)速(su)節(jie)能(neng)(neng)技術，風(feng)機、水泵、壓(ya)縮機等通(tong)用(yong)機械系統采用(yong)變(bian)頻調(diao)速(su)節(jie)能(neng)(neng)措施，工業機械采用(yong)交流電(dian)動機變(bian)頻調(diao)速(su)技術；制(zhi)定相(xiang)關經(jing)濟(ji)激勵政策、完善電(dian)機能(neng)(neng)效(xiao)標準體系等配套措施；“十一五”期間，實現電(dian)機系統運行效(xiao)率提高2個百分(fen)點，形成年節(jie)電(dian)能(neng)(neng)力200億(yi)千瓦時。 

為推動(dong)全社(she)(she)會展(zhan)開節(jie)能(neng)(neng)降(jiang)耗，緩解能(neng)(neng)源(yuan)瓶頸的(de)制(zhi)約(yue)，建設(she)節(jie)能(neng)(neng)型社(she)(she)會，國家發改(gai)委制(zhi)定了《節(jie)能(neng)(neng)中長(chang)期專項規(gui)劃(hua)》，并(bing)在2004年11月25日向全社(she)(she)會發布。該“規(gui)劃(hua)”明確(que)指出：能(neng)(neng)源(yuan)是(shi)戰略資源(yuan)，是(shi)全面(mian)建設(she)小(xiao)康社(she)(she)會的(de)重要物質基礎，必(bi)須(xu)堅持節(jie)約(yue)優先。 

隨著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)技術(shu)和開(kai)(kai)(kai)關(guan)(guan)(guan)行(xing)業的(de)(de)(de)飛速(su)發展(zhan)(zhan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)設(she)備與人們(men)的(de)(de)(de)工作、生(sheng)活的(de)(de)(de)關(guan)(guan)(guan)系(xi)日益密切，而(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)設(she)備都離不開(kai)(kai)(kai)可靠的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，進(jin)(jin)入80年(nian)代(dai)計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)全面實現了(le)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)化，率先完成(cheng)(cheng)計算機的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)換代(dai)，進(jin)(jin)入90年(nian)代(dai)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相繼進(jin)(jin)入各(ge)種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器設(she)備領域，程控(kong)交換機、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)檢測設(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)、控(kong)制設(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)等(deng)都已廣泛地使用了(le)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，更促進(jin)(jin)了(le)開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)技術(shu)的(de)(de)(de)迅速(su)發展(zhan)(zhan)。開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)是利用現代(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)技術(shu)，控(kong)制開(kai)(kai)(kai)關(guan)(guan)(guan)晶體管開(kai)(kai)(kai)通和關(guan)(guan)(guan)斷的(de)(de)(de)時間比率，維(wei)持穩定輸出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)一種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)一般(ban)由脈沖寬度調制（PWM）控(kong)制IC和MOSFET構成(cheng)(cheng)。開(kai)(kai)(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)和線(xian)性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相比，二者的(de)(de)(de)成(cheng)(cheng)本都隨著輸出功(gong)率的(de)(de)(de)增加而(er)增長(chang)，但(dan)二者增長(chang)速(su)率各(ge)異(yi)。