大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市(shi)場中引起銷售熱潮，其功(gong)能全(quan)面特點是(shi)起到很大(da)作(zuo)用(yong)，不同功(gong)能迎(ying)合到市(shi)場不同用(yong)戶(hu)群體，迅速占據到各大(da)市(shi)場空間(jian)。以下就來為(wei)大(da)家全(quan)面介紹PLC變(bian)頻控制柜功(gong)能信息內容： 

1、電(dian)源(yuan)切換(huan)與保護(hu)功能，PLC變(bian)(bian)頻(pin)(pin)控(kong)制柜(ju)通(tong)(tong)常設計(ji)有短路(lu)(lu)器(qi)元(yuan)件，連(lian)接著進線(xian)電(dian)源(yuan)，可以幫助變(bian)(bian)頻(pin)(pin)設備完成電(dian)路(lu)(lu)通(tong)(tong)斷(duan)控(kong)制，并(bing)能夠在電(dian)路(lu)(lu)和變(bian)(bian)頻(pin)(pin)器(qi)出現短路(lu)(lu)或(huo)是運行過載時給予保護(hu)，解決設備在運行中會發生電(dian)力輸送安(an)全問題，對操控(kong)人員人身安(an)全起到(dao)保護(hu)。 

2、變頻(pin)調速(su)功(gong)能(neng)，PLC變頻(pin)控制柜面(mian)板(ban)上(shang)設有變頻(pin)調速(su)用電(dian)位(wei)器，可以(yi)根據(ju)操(cao)作人員輸送(song)頻(pin)率，向電(dian)機輸送(song)指令(ling)信號，控制電(dian)機運行速(su)度，并且(qie)在部分(fen)產品設有工頻(pin)切換(huan)功(gong)能(neng)，以(yi)確保變頻(pin)器出現(xian)故(gu)障時，可以(yi)通過裝置實現(xian)最低故(gu)障發生(sheng)，減少設備出現(xian)損壞次數。 

國家(jia)發改(gai)委啟動的十大重點(dian)節(jie)能(neng)工程之一(yi)就是(shi)電機(ji)系(xi)(xi)統節(jie)能(neng)，并要求：推廣變頻調(diao)速(su)節(jie)能(neng)技術，風機(ji)、水泵、壓縮機(ji)等(deng)(deng)通用機(ji)械系(xi)(xi)統采用變頻調(diao)速(su)節(jie)能(neng)措(cuo)施，工業機(ji)械采用交流電動機(ji)變頻調(diao)速(su)技術；制(zhi)定相關經濟激勵政(zheng)策、完善電機(ji)能(neng)效標(biao)準(zhun)體系(xi)(xi)等(deng)(deng)配(pei)套措(cuo)施；“十一(yi)五(wu)”期(qi)間，實(shi)現(xian)電機(ji)系(xi)(xi)統運行(xing)效率提高2個百分點(dian)，形成年(nian)節(jie)電能(neng)力200億千瓦時(shi)。 

為推動全(quan)(quan)社(she)(she)(she)會(hui)展開節(jie)能(neng)降耗，緩解能(neng)源瓶(ping)頸的(de)(de)制約，建設(she)(she)節(jie)能(neng)型社(she)(she)(she)會(hui)，國家(jia)發(fa)改委(wei)制定了《節(jie)能(neng)中長期專項規劃(hua)》，并在2004年11月25日向全(quan)(quan)社(she)(she)(she)會(hui)發(fa)布。該“規劃(hua)”明確指出：能(neng)源是(shi)戰略資源，是(shi)全(quan)(quan)面建設(she)(she)小(xiao)康社(she)(she)(she)會(hui)的(de)(de)重(zhong)要物(wu)質基(ji)礎，必(bi)須堅持節(jie)約優先。 

隨著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)和(he)開(kai)(kai)(kai)(kai)關(guan)(guan)行業的飛速發展，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設(she)(she)備與(yu)人們的工作、生活的關(guan)(guan)系日益密切(qie)，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設(she)(she)備都(dou)離(li)不(bu)開(kai)(kai)(kai)(kai)可(ke)靠的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，進入(ru)80年代計算(suan)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)全面(mian)實現了(le)(le)開(kai)(kai)(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)化，率(lv)先完成(cheng)(cheng)計算(suan)機(ji)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)換(huan)代，進入(ru)90年代開(kai)(kai)(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)相(xiang)繼(ji)進入(ru)各種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器設(she)(she)備領(ling)域，程控交換(huan)機(ji)、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)檢測設(she)(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)、控制(zhi)設(she)(she)備電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)等都(dou)已(yi)廣泛地使(shi)用了(le)(le)開(kai)(kai)(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，更(geng)促進了(le)(le)開(kai)(kai)(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)技(ji)術(shu)的迅(xun)速發展。開(kai)(kai)(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)是利用現代電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)，控制(zhi)開(kai)(kai)(kai)(kai)關(guan)(guan)晶(jing)體管開(kai)(kai)(kai)(kai)通和(he)關(guan)(guan)斷的時間比率(lv)，維(wei)持穩定(ding)輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的一(yi)(yi)種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，開(kai)(kai)(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)一(yi)(yi)般由脈沖(chong)寬度調制(zhi)（PWM）控制(zhi)IC和(he)MOSFET構成(cheng)(cheng)。開(kai)(kai)(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)和(he)線性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)相(xiang)比，二者的成(cheng)(cheng)本都(dou)隨著輸(shu)出(chu)功率(lv)的增加而增長(chang)，但(dan)二者增長(chang)速率(lv)各異。