大連控制柜、變頻控制箱和大連PLC變頻控制柜出(chu)現(xian)在市(shi)場(chang)中引起銷售熱(re)潮，其功能(neng)(neng)全面特點(dian)是(shi)起到(dao)(dao)很大作用(yong)，不同功能(neng)(neng)迎合到(dao)(dao)市(shi)場(chang)不同用(yong)戶群體，迅速占(zhan)據到(dao)(dao)各大市(shi)場(chang)空間(jian)。以下就來為大家(jia)全面介紹PLC變頻控制柜(ju)功能(neng)(neng)信息內容： 

1、電源切換與保(bao)(bao)護功能(neng)，PLC變頻控(kong)制(zhi)柜(ju)通常(chang)設(she)(she)(she)計有短(duan)路(lu)(lu)器元件，連(lian)接著(zhu)進線(xian)電源，可以(yi)幫(bang)助變頻設(she)(she)(she)備(bei)完成電路(lu)(lu)通斷控(kong)制(zhi)，并能(neng)夠在電路(lu)(lu)和變頻器出現短(duan)路(lu)(lu)或是運(yun)行(xing)過載(zai)時給予(yu)保(bao)(bao)護，解決設(she)(she)(she)備(bei)在運(yun)行(xing)中會發生電力輸(shu)送(song)安全(quan)問題，對操控(kong)人員人身(shen)安全(quan)起到保(bao)(bao)護。 

2、變(bian)頻(pin)(pin)(pin)調(diao)速(su)功能(neng)，PLC變(bian)頻(pin)(pin)(pin)控(kong)制柜(ju)面板(ban)上設有變(bian)頻(pin)(pin)(pin)調(diao)速(su)用電位器，可(ke)以(yi)根據操作人員輸(shu)送頻(pin)(pin)(pin)率，向電機(ji)輸(shu)送指令信號(hao)，控(kong)制電機(ji)運行速(su)度，并且(qie)在部(bu)分產品設有工頻(pin)(pin)(pin)切換(huan)功能(neng)，以(yi)確保變(bian)頻(pin)(pin)(pin)器出現(xian)故障(zhang)時，可(ke)以(yi)通過(guo)裝(zhuang)置(zhi)實現(xian)最低(di)故障(zhang)發生，減少設備(bei)出現(xian)損壞(huai)次數。 

國家發(fa)改委啟動的(de)十大重(zhong)點節能工(gong)程之(zhi)一就是電機(ji)系(xi)統節能，并要求：推廣變頻(pin)調速(su)節能技術(shu)，風機(ji)、水泵、壓縮機(ji)等(deng)(deng)通用機(ji)械(xie)系(xi)統采用變頻(pin)調速(su)節能措施，工(gong)業(ye)機(ji)械(xie)采用交流電動機(ji)變頻(pin)調速(su)技術(shu)；制定相(xiang)關經濟激勵政策、完(wan)善(shan)電機(ji)能效標準(zhun)體系(xi)等(deng)(deng)配套(tao)措施；“十一五”期間，實(shi)現電機(ji)系(xi)統運行(xing)效率(lv)提(ti)高(gao)2個百分點，形成年節電能力200億(yi)千瓦時。 

為(wei)推(tui)動全社會展開節能(neng)(neng)降耗，緩解(jie)能(neng)(neng)源(yuan)瓶頸(jing)的制約，建設節能(neng)(neng)型社會，國家發(fa)改委制定了《節能(neng)(neng)中(zhong)長期專項規(gui)(gui)劃(hua)》，并在(zai)2004年11月25日向全社會發(fa)布。該“規(gui)(gui)劃(hua)”明確指出：能(neng)(neng)源(yuan)是(shi)戰略資源(yuan)，是(shi)全面(mian)建設小康社會的重要物質基(ji)礎，必須堅持(chi)節約優先。 

隨著(zhu)電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)技(ji)術(shu)和(he)(he)開(kai)關(guan)(guan)(guan)(guan)行業的(de)(de)飛速(su)(su)(su)發(fa)展(zhan)，電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)設(she)備(bei)(bei)(bei)與人們的(de)(de)工作、生(sheng)活的(de)(de)關(guan)(guan)(guan)(guan)系日益密切(qie)，而(er)電(dian)(dian)(dian)子(zi)設(she)備(bei)(bei)(bei)都(dou)(dou)離(li)不開(kai)可(ke)靠(kao)的(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，進入80年(nian)代計(ji)算機(ji)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)全面實現了(le)開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)化，率(lv)(lv)先完成計(ji)算機(ji)的(de)(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)換(huan)代，進入90年(nian)代開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)相繼進入各種電(dian)(dian)(dian)子(zi)、電(dian)(dian)(dian)器設(she)備(bei)(bei)(bei)領域，程控(kong)(kong)交換(huan)機(ji)、通訊、電(dian)(dian)(dian)子(zi)檢測設(she)備(bei)(bei)(bei)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)、控(kong)(kong)制設(she)備(bei)(bei)(bei)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)等都(dou)(dou)已廣(guang)泛地使用了(le)開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，更促進了(le)開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)技(ji)術(shu)的(de)(de)迅速(su)(su)(su)發(fa)展(zhan)。開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)是利用現代電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)技(ji)術(shu)，控(kong)(kong)制開(kai)關(guan)(guan)(guan)(guan)晶體管(guan)開(kai)通和(he)(he)關(guan)(guan)(guan)(guan)斷的(de)(de)時間比率(lv)(lv)，維持穩定輸出電(dian)(dian)(dian)壓的(de)(de)一種電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)一般由脈沖寬(kuan)度(du)調(diao)制（PWM）控(kong)(kong)制IC和(he)(he)MOSFET構成。開(kai)關(guan)(guan)(guan)(guan)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)和(he)(he)線性電(dian)(dian)(dian)源(yuan)(yuan)(yuan)相比，二者的(de)(de)成本都(dou)(dou)隨著(zhu)輸出功率(lv)(lv)的(de)(de)增(zeng)加而(er)增(zeng)長，但(dan)二者增(zeng)長速(su)(su)(su)率(lv)(lv)各異。