大連控制柜、變頻控制箱和大連PLC變頻控制柜出(chu)現在市(shi)(shi)場中引起銷(xiao)售(shou)熱潮(chao)，其功(gong)能全(quan)面(mian)特點是起到(dao)(dao)很大作用(yong)，不同功(gong)能迎合到(dao)(dao)市(shi)(shi)場不同用(yong)戶群(qun)體，迅速占(zhan)據到(dao)(dao)各(ge)大市(shi)(shi)場空間。以下(xia)就來為大家(jia)全(quan)面(mian)介紹PLC變頻(pin)控制柜(ju)功(gong)能信(xin)息內容： 

1、電(dian)(dian)源切換與保護功能(neng)，PLC變(bian)(bian)頻控(kong)制(zhi)(zhi)柜(ju)通(tong)常設(she)計有短路(lu)器元件，連接著進(jin)線電(dian)(dian)源，可以幫助變(bian)(bian)頻設(she)備完(wan)成電(dian)(dian)路(lu)通(tong)斷控(kong)制(zhi)(zhi)，并(bing)能(neng)夠(gou)在(zai)電(dian)(dian)路(lu)和(he)變(bian)(bian)頻器出現短路(lu)或是(shi)運(yun)行過載時給(gei)予保護，解決設(she)備在(zai)運(yun)行中會發生(sheng)電(dian)(dian)力輸(shu)送安(an)全問題，對操控(kong)人員人身安(an)全起到保護。 

2、變頻(pin)(pin)調速(su)功能(neng)，PLC變頻(pin)(pin)控(kong)制(zhi)柜面板上(shang)設有變頻(pin)(pin)調速(su)用電(dian)位器(qi)，可(ke)以(yi)根(gen)據操作(zuo)人員輸送頻(pin)(pin)率，向電(dian)機輸送指令信(xin)號，控(kong)制(zhi)電(dian)機運行速(su)度，并(bing)且在部分(fen)產品設有工頻(pin)(pin)切換功能(neng)，以(yi)確保變頻(pin)(pin)器(qi)出(chu)現(xian)故(gu)(gu)障時，可(ke)以(yi)通過裝置實現(xian)最低故(gu)(gu)障發生(sheng)，減少設備出(chu)現(xian)損(sun)壞(huai)次數。 

國家發改(gai)委啟動的十大重點(dian)節(jie)(jie)(jie)能(neng)工程之一就是電(dian)機系(xi)統節(jie)(jie)(jie)能(neng)，并要求：推廣變頻(pin)調速(su)節(jie)(jie)(jie)能(neng)技術，風機、水泵、壓縮(suo)機等通(tong)用(yong)機械系(xi)統采用(yong)變頻(pin)調速(su)節(jie)(jie)(jie)能(neng)措(cuo)施，工業(ye)機械采用(yong)交流電(dian)動機變頻(pin)調速(su)技術；制定相關經濟激勵政策、完善電(dian)機能(neng)效標準(zhun)體系(xi)等配套措(cuo)施；“十一五”期間，實現電(dian)機系(xi)統運行效率(lv)提高2個百分點(dian)，形(xing)成年(nian)節(jie)(jie)(jie)電(dian)能(neng)力200億(yi)千瓦(wa)時。 

為推動(dong)全社(she)會展開(kai)節(jie)能降耗，緩解能源瓶頸的(de)(de)制約(yue)，建設(she)節(jie)能型(xing)社(she)會，國家發改委制定了《節(jie)能中(zhong)長期專項規(gui)劃》，并在2004年11月25日向全社(she)會發布。該“規(gui)劃”明確(que)指出：能源是戰略資源，是全面建設(she)小康社(she)會的(de)(de)重(zhong)要(yao)物質(zhi)基(ji)礎(chu)，必須堅持節(jie)約(yue)優先(xian)。 

隨(sui)(sui)著電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)和(he)(he)開(kai)關(guan)行業的(de)(de)飛速發展(zhan)，電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)設備(bei)與人們的(de)(de)工作(zuo)、生活的(de)(de)關(guan)系(xi)日益密切，而電(dian)(dian)(dian)子(zi)設備(bei)都離不開(kai)可靠(kao)的(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)，進(jin)入(ru)80年代(dai)(dai)計(ji)算(suan)機電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)全面實現了(le)開(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)化，率先完成(cheng)(cheng)計(ji)算(suan)機的(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)換代(dai)(dai)，進(jin)入(ru)90年代(dai)(dai)開(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)相(xiang)繼進(jin)入(ru)各種電(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)器設備(bei)領(ling)域(yu)，程控(kong)交換機、通訊、電(dian)(dian)(dian)子(zi)檢測設備(bei)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)、控(kong)制(zhi)設備(bei)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)等都已廣泛(fan)地使(shi)用了(le)開(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)，更促進(jin)了(le)開(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)技(ji)術(shu)(shu)的(de)(de)迅速發展(zhan)。開(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)是(shi)利用現代(dai)(dai)電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)技(ji)術(shu)(shu)，控(kong)制(zhi)開(kai)關(guan)晶(jing)體(ti)管(guan)開(kai)通和(he)(he)關(guan)斷的(de)(de)時間比(bi)率，維持(chi)穩定輸(shu)出(chu)電(dian)(dian)(dian)壓的(de)(de)一種電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)，開(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)一般由脈(mo)沖寬度(du)調制(zhi)（PWM）控(kong)制(zhi)IC和(he)(he)MOSFET構成(cheng)(cheng)。開(kai)關(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)和(he)(he)線性電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)相(xiang)比(bi)，二者的(de)(de)成(cheng)(cheng)本都隨(sui)(sui)著輸(shu)出(chu)功率的(de)(de)增加而增長，但二者增長速率各異。