大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市場中引起銷售熱潮，其功(gong)能全(quan)面特點(dian)是起到(dao)很大(da)(da)作用(yong)，不同(tong)功(gong)能迎合到(dao)市場不同(tong)用(yong)戶群體，迅速占據到(dao)各大(da)(da)市場空間。以下就來為大(da)(da)家全(quan)面介紹PLC變頻控制(zhi)柜(ju)功(gong)能信息內容： 

1、電(dian)源切(qie)換與保(bao)護功能，PLC變(bian)頻控制柜通(tong)常設(she)計有(you)短路(lu)(lu)器(qi)元件，連接著進線電(dian)源，可以幫助(zhu)變(bian)頻設(she)備(bei)完成電(dian)路(lu)(lu)通(tong)斷控制，并(bing)能夠在電(dian)路(lu)(lu)和變(bian)頻器(qi)出現短路(lu)(lu)或是(shi)運(yun)行(xing)過載時給予保(bao)護，解決設(she)備(bei)在運(yun)行(xing)中會(hui)發(fa)生電(dian)力輸送安(an)(an)全(quan)問題，對操控人員人身(shen)安(an)(an)全(quan)起到保(bao)護。 

2、變頻(pin)調(diao)(diao)速(su)功(gong)能，PLC變頻(pin)控(kong)制(zhi)(zhi)柜面板(ban)上設有變頻(pin)調(diao)(diao)速(su)用電(dian)位器(qi)，可以根(gen)據操(cao)作人員(yuan)輸送(song)頻(pin)率(lv)，向(xiang)電(dian)機輸送(song)指令信號(hao)，控(kong)制(zhi)(zhi)電(dian)機運(yun)行(xing)速(su)度，并且在部分產品設有工頻(pin)切換(huan)功(gong)能，以確保變頻(pin)器(qi)出現故障時，可以通(tong)過裝(zhuang)置實現最(zui)低故障發生(sheng)，減少(shao)設備出現損壞次數。 

國家發(fa)改(gai)委啟動的十大重(zhong)點節(jie)能工(gong)程(cheng)之(zhi)一就是(shi)電(dian)機系(xi)統(tong)節(jie)能，并要求：推(tui)廣變頻(pin)(pin)調速(su)節(jie)能技(ji)術(shu)，風機、水泵、壓縮機等(deng)通用(yong)(yong)機械系(xi)統(tong)采用(yong)(yong)變頻(pin)(pin)調速(su)節(jie)能措(cuo)施，工(gong)業(ye)機械采用(yong)(yong)交(jiao)流電(dian)動機變頻(pin)(pin)調速(su)技(ji)術(shu)；制定相關經濟(ji)激勵(li)政策、完善電(dian)機能效標準體系(xi)等(deng)配套措(cuo)施；“十一五”期間，實現(xian)電(dian)機系(xi)統(tong)運行效率提(ti)高2個百分點，形(xing)成年(nian)節(jie)電(dian)能力(li)200億(yi)千瓦時。 

為推動全社(she)會(hui)展(zhan)開節(jie)能(neng)(neng)降耗(hao)，緩(huan)解能(neng)(neng)源瓶頸的(de)制(zhi)約，建(jian)設節(jie)能(neng)(neng)型社(she)會(hui)，國家發改委(wei)制(zhi)定了《節(jie)能(neng)(neng)中長期專項規(gui)劃》，并在2004年11月(yue)25日向全社(she)會(hui)發布(bu)。該“規(gui)劃”明確指出：能(neng)(neng)源是戰略資(zi)源，是全面建(jian)設小康(kang)社(she)會(hui)的(de)重(zhong)要物質基礎，必須堅持節(jie)約優先。 

隨著(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)技(ji)術(shu)(shu)和(he)開(kai)(kai)關(guan)(guan)行業(ye)的(de)飛速發展(zhan)(zhan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)設(she)(she)備(bei)與人(ren)們的(de)工作、生活的(de)關(guan)(guan)系(xi)日益密切，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)設(she)(she)備(bei)都(dou)(dou)離不(bu)開(kai)(kai)可(ke)靠的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，進入80年代(dai)計算機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)全面(mian)實現(xian)了開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)化，率(lv)(lv)(lv)先完成(cheng)計算機(ji)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)換代(dai)，進入90年代(dai)開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相繼進入各(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)(she)備(bei)領域，程(cheng)控(kong)交換機(ji)、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)檢測(ce)設(she)(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、控(kong)制設(she)(she)備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)等都(dou)(dou)已廣(guang)泛地使(shi)用了開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，更促進了開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)技(ji)術(shu)(shu)的(de)迅(xun)速發展(zhan)(zhan)。開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)是利用現(xian)代(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)(zi)技(ji)術(shu)(shu)，控(kong)制開(kai)(kai)關(guan)(guan)晶體(ti)管開(kai)(kai)通和(he)關(guan)(guan)斷的(de)時間比(bi)率(lv)(lv)(lv)，維(wei)持穩定(ding)輸出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)一種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)一般(ban)由脈沖寬度調制（PWM）控(kong)制IC和(he)MOSFET構成(cheng)。開(kai)(kai)關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)和(he)線性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)相比(bi)，二者(zhe)的(de)成(cheng)本都(dou)(dou)隨著(zhu)輸出(chu)(chu)功率(lv)(lv)(lv)的(de)增(zeng)(zeng)加而增(zeng)(zeng)長，但二者(zhe)增(zeng)(zeng)長速率(lv)(lv)(lv)各(ge)異。