大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市(shi)場中(zhong)引(yin)起銷售熱(re)潮，其功(gong)(gong)能(neng)全面特點(dian)是起到很大(da)作用，不同功(gong)(gong)能(neng)迎合到市(shi)場不同用戶群(qun)體(ti)，迅(xun)速占據(ju)到各(ge)大(da)市(shi)場空間(jian)。以下就(jiu)來為大(da)家全面介紹PLC變頻控(kong)制柜功(gong)(gong)能(neng)信息內容： 

1、電(dian)源切換與保護功能(neng)(neng)，PLC變(bian)頻(pin)控(kong)制(zhi)(zhi)柜通常設計(ji)有短路器元件，連接著進線電(dian)源，可以幫(bang)助變(bian)頻(pin)設備完成電(dian)路通斷控(kong)制(zhi)(zhi)，并能(neng)(neng)夠在(zai)電(dian)路和變(bian)頻(pin)器出現短路或是(shi)運(yun)(yun)行過(guo)載(zai)時(shi)給予保護，解決(jue)設備在(zai)運(yun)(yun)行中(zhong)會發生電(dian)力輸送安全(quan)問題(ti)，對(dui)操控(kong)人(ren)員人(ren)身安全(quan)起到保護。 

2、變頻(pin)調速功能(neng)，PLC變頻(pin)控制柜面(mian)板上設(she)(she)有變頻(pin)調速用(yong)電位器，可以(yi)根據(ju)操作人(ren)員輸(shu)送(song)頻(pin)率，向電機(ji)輸(shu)送(song)指令信號，控制電機(ji)運行速度，并且在(zai)部分(fen)產品設(she)(she)有工頻(pin)切(qie)換功能(neng)，以(yi)確保(bao)變頻(pin)器出現故(gu)障時，可以(yi)通過裝置實現最低故(gu)障發(fa)生，減少設(she)(she)備出現損壞(huai)次數。 

國家(jia)發(fa)改委(wei)啟(qi)動(dong)的十大重點(dian)節(jie)能(neng)(neng)(neng)工程(cheng)之一就是(shi)電(dian)機(ji)(ji)(ji)系(xi)統節(jie)能(neng)(neng)(neng)，并要(yao)求(qiu)：推廣變(bian)頻調(diao)速節(jie)能(neng)(neng)(neng)技術，風機(ji)(ji)(ji)、水泵、壓縮機(ji)(ji)(ji)等通用(yong)(yong)機(ji)(ji)(ji)械系(xi)統采(cai)用(yong)(yong)變(bian)頻調(diao)速節(jie)能(neng)(neng)(neng)措(cuo)施，工業機(ji)(ji)(ji)械采(cai)用(yong)(yong)交流電(dian)動(dong)機(ji)(ji)(ji)變(bian)頻調(diao)速技術；制(zhi)定相關經(jing)濟激勵政策、完善電(dian)機(ji)(ji)(ji)能(neng)(neng)(neng)效標(biao)準體系(xi)等配套措(cuo)施；“十一五”期間，實(shi)現電(dian)機(ji)(ji)(ji)系(xi)統運行效率提高2個(ge)百分(fen)點(dian)，形成年節(jie)電(dian)能(neng)(neng)(neng)力200億(yi)千瓦時。 

為推(tui)動(dong)全社(she)會(hui)展開節能(neng)降耗，緩解(jie)能(neng)源(yuan)瓶頸的(de)制(zhi)(zhi)約(yue)，建設(she)節能(neng)型社(she)會(hui)，國家發(fa)改委(wei)制(zhi)(zhi)定了(le)《節能(neng)中長期專(zhuan)項規(gui)劃》，并在2004年(nian)11月(yue)25日向全社(she)會(hui)發(fa)布。該(gai)“規(gui)劃”明(ming)確指(zhi)出：能(neng)源(yuan)是戰略資源(yuan)，是全面建設(she)小(xiao)康社(she)會(hui)的(de)重要物質基礎(chu)，必須堅持節約(yue)優先。 

隨著電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)技術(shu)和(he)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)行業(ye)的(de)(de)飛(fei)速發展，電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)設備(bei)與人(ren)們的(de)(de)工作、生活(huo)的(de)(de)關(guan)(guan)(guan)(guan)系(xi)日(ri)益密切，而電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)設備(bei)都離不開(kai)(kai)(kai)(kai)可靠的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，進(jin)(jin)入80年(nian)代計算(suan)機電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)全面(mian)實現了(le)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)化(hua)，率(lv)先(xian)完成(cheng)計算(suan)機的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)換(huan)代，進(jin)(jin)入90年(nian)代開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼進(jin)(jin)入各(ge)種電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)設備(bei)領域，程控(kong)(kong)交換(huan)機、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)檢測設備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、控(kong)(kong)制(zhi)設備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)等都已廣泛地使用了(le)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進(jin)(jin)了(le)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)技術(shu)的(de)(de)迅速發展。開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)是利用現代電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)技術(shu)，控(kong)(kong)制(zhi)開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)晶體管開(kai)(kai)(kai)(kai)通和(he)關(guan)(guan)(guan)(guan)斷的(de)(de)時間比率(lv)，維持(chi)穩定輸出電(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)一(yi)種電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)一(yi)般由脈沖寬(kuan)度調制(zhi)（PWM）控(kong)(kong)制(zhi)IC和(he)MOSFET構成(cheng)。開(kai)(kai)(kai)(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)線性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相比，二(er)者的(de)(de)成(cheng)本都隨著輸出功率(lv)的(de)(de)增加而增長(chang)，但二(er)者增長(chang)速率(lv)各(ge)異。