大連潤田電氣自動化有限公司
聯系人(ren):田先生(sheng)
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網 址:yungeds.cn
地 址:遼寧省大連市甘井子(zi)區(qu)辛寨子(zi)天虹(hong)開(kai)發區(qu)工(gong)業園(yuan)區(qu)內
一般對變頻控制柜采取最廣泛的散熱方式是在自然條件下使控制柜散熱,也被稱為自然換氣,大連配電箱有封閉和(he)開(kai)放式(shi)兩種(zhong),特點(dian)是其成本低(di),使用(yong)范(fan)圍廣。當變頻器(qi)容(rong)量變大時變頻控制柜的尺(chi)寸也隨(sui)之而(er)變大,此方法適(shi)用(yong)于小容(rong)量變頻器(qi)。
確(que)(que)認(ren)(ren)大(da)連配電(dian)箱控制(zhi)柜安裝是(shi)(shi)否就位;確(que)(que)認(ren)(ren)柜內(nei)接(jie)線(xian)是(shi)(shi)否松動、脫落(luo)現象(xiang);再次確(que)(que)認(ren)(ren)變(bian)頻器的(de)接(jie)線(xian)是(shi)(shi)否有誤(wu),直(zhi)流和交流接(jie)線(xian)是(shi)(shi)否有誤(wu);主電(dian)源接(jie)線(xian)是(shi)(shi)否正確(que)(que);電(dian)機(ji)(ji)接(jie)線(xian)是(shi)(shi)否正確(que)(que);電(dian)纜(lan)型號是(shi)(shi)否和所選用的(de)電(dian)機(ji)(ji)(負(fu)載)匹配;變(bian)頻器的(de)額定功率是(shi)(shi)否大(da)于(yu)等于(yu)所選電(dian)機(ji)(ji)的(de)額定功率,如果是(shi)(shi)重(zhong)載場合(he),則(ze)需變(bian)頻器的(de)額定功率大(da)于(yu)電(dian)機(ji)(ji)功率一個(ge)或兩個(ge)檔次;熱繼(ji)電(dian)器的(de)整定值(zhi)是(shi)(shi)否正確(que)(que)。柜內(nei)是(shi)(shi)否有多余的(de)線(xian)頭(tou)或異物。合(he)上主電(dian)源空(kong)開(kai)空(kong)試一次,迅速斷開(kai),看接(jie)線(xian)是(shi)(shi)否正確(que)(que),相序是(shi)(shi)否正確(que)(que)。
根據大連配電箱現場工(gong)(gong)藝的控(kong)(kong)制(zhi)要求(qiu),嚴(yan)格按照變頻(pin)器(qi)說明(ming)書,設(she)(she)定(ding)參數(shu)(shu)(shu)。設(she)(she)定(ding)完(wan)畢(bi),確(que)認電機(ji)額定(ding)功率、額定(ding)電壓(ya)(ya)、額定(ding)電流等(deng)參數(shu)(shu)(shu)是(shi)否(fou)正確(que),保護參數(shu)(shu)(shu)設(she)(she)置(zhi)是(shi)否(fou)正確(que),控(kong)(kong)制(zhi)方式(shi)是(shi)否(fou)符合工(gong)(gong)藝控(kong)(kong)制(zhi)要求(qiu),確(que)認無(wu)誤后開機(ji)試運行,根據現場的信號在此判斷是(shi)否(fou)需(xu)要修改設(she)(she)定(ding)的參數(shu)(shu)(shu)數(shu)(shu)(shu)值,對于閉環控(kong)(kong)制(zhi),特別是(shi)恒壓(ya)(ya)控(kong)(kong)制(zhi),設(she)(she)置(zhi)PID時首先調(diao)(diao)P參數(shu)(shu)(shu),一般(ban)是(shi)從(cong)小到大(da)慢慢調(diao)(diao),P參數(shu)(shu)(shu)設(she)(she)置(zhi)大(da),系統的調(diao)(diao)節速度快,容易引起系統震蕩,積分參數(shu)(shu)(shu),不可設(she)(she)置(zhi)過短。