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(zhong)引起銷售熱潮(chao)，其功能(neng)全面特點是起到(dao)很(hen)大作用(yong)，不同功能(neng)迎(ying)合到(dao)市場不同用(yong)戶(hu)群(qun)體，迅速(su)占據到(dao)各(ge)大市場空(kong)間。以下就來為大家全面介紹PLC變頻控制柜(ju)功能(neng)信息(xi)內容： 

1、電(dian)源切換與(yu)保(bao)護功能(neng)，PLC變頻控(kong)(kong)制(zhi)柜通常設(she)(she)計有短路(lu)器元件，連接著進線(xian)電(dian)源，可以幫(bang)助變頻設(she)(she)備完(wan)成電(dian)路(lu)通斷(duan)控(kong)(kong)制(zhi)，并能(neng)夠在電(dian)路(lu)和變頻器出(chu)現短路(lu)或是運行過(guo)載時給(gei)予(yu)保(bao)護，解(jie)決設(she)(she)備在運行中會(hui)發生電(dian)力輸送安全問題，對操控(kong)(kong)人(ren)員人(ren)身(shen)安全起到保(bao)護。 

2、變頻調速(su)功能，PLC變頻控(kong)制(zhi)柜面板上設有變頻調速(su)用電(dian)位器，可以根據操作(zuo)人員輸送頻率，向電(dian)機(ji)輸送指令信(xin)號，控(kong)制(zhi)電(dian)機(ji)運行(xing)速(su)度，并且在部分產品(pin)設有工頻切(qie)換功能，以確(que)保(bao)變頻器出現故(gu)障時，可以通(tong)過裝置實現最低故(gu)障發生，減少設備(bei)出現損壞次數(shu)。 

國家發改委啟動(dong)的十(shi)大(da)重點節能(neng)工程之一就(jiu)是電(dian)(dian)機(ji)(ji)系(xi)統節能(neng)，并(bing)要求：推廣變頻調速(su)節能(neng)技(ji)術(shu)，風機(ji)(ji)、水泵、壓縮機(ji)(ji)等通用機(ji)(ji)械(xie)系(xi)統采(cai)用變頻調速(su)節能(neng)措施(shi)，工業機(ji)(ji)械(xie)采(cai)用交流電(dian)(dian)動(dong)機(ji)(ji)變頻調速(su)技(ji)術(shu)；制定相關經濟(ji)激(ji)勵政策、完善(shan)電(dian)(dian)機(ji)(ji)能(neng)效標準體系(xi)等配套措施(shi)；“十(shi)一五”期間，實現電(dian)(dian)機(ji)(ji)系(xi)統運行效率提(ti)高2個百分點，形成(cheng)年節電(dian)(dian)能(neng)力200億(yi)千瓦(wa)時。 

為(wei)推(tui)動全社(she)會(hui)(hui)展開節能(neng)(neng)(neng)降耗，緩(huan)解能(neng)(neng)(neng)源瓶頸(jing)的(de)(de)制約，建設節能(neng)(neng)(neng)型社(she)會(hui)(hui)，國家發(fa)改委制定(ding)了《節能(neng)(neng)(neng)中長(chang)期(qi)專(zhuan)項(xiang)規劃》，并在2004年11月25日向全社(she)會(hui)(hui)發(fa)布。該“規劃”明確指出：能(neng)(neng)(neng)源是戰略資源，是全面建設小康社(she)會(hui)(hui)的(de)(de)重要物質基礎，必須(xu)堅(jian)持節約優先(xian)。 

隨著(zhu)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)關(guan)(guan)(guan)行業的(de)(de)(de)飛速(su)發展(zhan)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設備(bei)(bei)與人們的(de)(de)(de)工作、生活(huo)的(de)(de)(de)關(guan)(guan)(guan)系日益密切，而(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設備(bei)(bei)都離不開(kai)可靠的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，進入(ru)80年代計(ji)算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)全面實現(xian)了開(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)化，率(lv)先完成計(ji)算機的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)換(huan)代，進入(ru)90年代開(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相繼(ji)進入(ru)各(ge)種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器設備(bei)(bei)領域，程控交換(huan)機、通訊、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)檢測設備(bei)(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)、控制設備(bei)(bei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)等(deng)都已(yi)廣(guang)泛地使用了開(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，更(geng)促進了開(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)技(ji)術(shu)的(de)(de)(de)迅速(su)發展(zhan)。開(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)是利用現(xian)代電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)技(ji)術(shu)，控制開(kai)關(guan)(guan)(guan)晶(jing)體管開(kai)通和(he)關(guan)(guan)(guan)斷的(de)(de)(de)時間比率(lv)，維持穩定輸出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)(de)一種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)，開(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)一般由脈沖寬度調(diao)制（PWM）控制IC和(he)MOSFET構(gou)成。開(kai)關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)線性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)相比，二者的(de)(de)(de)成本都隨著(zhu)輸出功率(lv)的(de)(de)(de)增(zeng)加(jia)而(er)增(zeng)長(chang)，但二者增(zeng)長(chang)速(su)率(lv)各(ge)異。