更新時間:2024-03-12
西門子變(bian)頻(pin)(pin)器MM4306SE6430-2UD41-1FA0使用中(zhong)常常遇到因個別參數(shu)設置(zhi)不當,導致變(bian)頻(pin)(pin)器不能(neng)正常工(gong)作的現象。控(kong)制(zhi)(zhi)(zhi)(zhi)方(fang)式(shi):即速度控(kong)制(zhi)(zhi)(zhi)(zhi)、轉距控(kong)制(zhi)(zhi)(zhi)(zhi)、PID控(kong)制(zhi)(zhi)(zhi)(zhi)或其他方(fang)式(shi)。采(cai)取控(kong)制(zhi)(zhi)(zhi)(zhi)方(fang)式(shi)后,一般要根據控(kong)制(zhi)(zhi)(zhi)(zhi)精度,需要進行(xing)靜態或動態辨識
品牌 | 西門子 | 產品系列 | M440 |
---|---|---|---|
額定電壓(V) | 三相AC200-240 |
西門子變頻器MM4306SE6430-2UD41-1FA0產品介紹(shao):
西門子變頻器MM4306SE6430-2UD41-1FA0產品圖片參考:
西門子6SE6430-2UD41-1FB0產品型(xing)號(hao)及參數:
變(bian)頻器(qi)的(de)(de)(de)設定(ding)(ding)(ding)參數(shu)(shu)多,每個(ge)(ge)參數(shu)(shu)均有一(yi)定(ding)(ding)(ding)的(de)(de)(de)選擇(ze)范圍, 西門子變(bian)頻器(qi)(圖2)使用中常(chang)常(chang)遇到因個(ge)(ge)別(bie)參數(shu)(shu)設置(zhi)不當,導(dao)(dao)致(zhi)變(bian)頻器(qi)不能正常(chang)工作(zuo)的(de)(de)(de)現(xian)象。控制(zhi)(zhi)方式(shi):即(ji)(ji)速(su)(su)(su)度(du)控制(zhi)(zhi)、轉(zhuan)(zhuan)距控制(zhi)(zhi)、PID控制(zhi)(zhi)或其(qi)(qi)他方式(shi)。采取控制(zhi)(zhi)方式(shi)后,一(yi)般要(yao)根據控制(zhi)(zhi)精度(du),需要(yao)進行靜(jing)態(tai)或動態(tai)辨識。低(di)運(yun)行頻率:即(ji)(ji)電(dian)(dian)機(ji)(ji)(ji)運(yun)行的(de)(de)(de)小(xiao)轉(zhuan)(zhuan)速(su)(su)(su),電(dian)(dian)機(ji)(ji)(ji)在低(di)轉(zhuan)(zhuan)速(su)(su)(su)下(xia)運(yun)行時(shi)(shi),其(qi)(qi)散(san)熱(re)(re)(re)性能很差,電(dian)(dian)機(ji)(ji)(ji)長時(shi)(shi)間運(yun)行在低(di)轉(zhuan)(zhuan)速(su)(su)(su)下(xia),會(hui)導(dao)(dao)致(zhi)電(dian)(dian)機(ji)(ji)(ji)燒毀。而且(qie)低(di)速(su)(su)(su)時(shi)(shi),其(qi)(qi)電(dian)(dian)纜中的(de)(de)(de)電(dian)(dian)流也會(hui)增(zeng)大(da),也會(hui)導(dao)(dao)致(zhi)電(dian)(dian)纜發熱(re)(re)(re)。通電(dian)(dian)機(ji)(ji)(ji)來說,其(qi)(qi)軸承不能長時(shi)(shi)間的(de)(de)(de)超額定(ding)(ding)(ding)轉(zhuan)(zhuan)速(su)(su)(su)運(yun)行,電(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)轉(zhuan)(zhuan)子是(shi)否能承受(shou)這樣的(de)(de)(de)離心力。載波(bo)頻率:載波(bo)頻率設置(zhi)的(de)(de)(de)越高其(qi)(qi)高次諧(xie)波(bo)分量越大(da),這和電(dian)(dian)纜的(de)(de)(de)長度(du),電(dian)(dian)機(ji)(ji)(ji)發熱(re)(re)(re),電(dian)(dian)纜發熱(re)(re)(re)變(bian)頻器(qi)發熱(re)(re)(re)等因素是(shi)密切相關的(de)(de)(de)。電(dian)(dian)機(ji)(ji)(ji)參數(shu)(shu):變(bian)頻器(qi)在參數(shu)(shu)中設定(ding)(ding)(ding)電(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)功(gong)率、電(dian)(dian)流、電(dian)(dian)壓、轉(zhuan)(zhuan)速(su)(su)(su)大(da)頻率,這些參數(shu)(shu)可以從(cong)電(dian)(dian)機(ji)(ji)(ji)銘(ming)牌中直(zhi)接得(de)到。跳頻:在某個(ge)(ge)頻率點(dian)上,有可能會(hui)發生(sheng)共振現(xian)象,特別(bie)在整個(ge)(ge)裝置(zhi)比較(jiao)高時(shi)(shi);在控制(zhi)(zhi)壓縮(suo)機(ji)(ji)(ji)時(shi)(shi),要(yao)避免壓縮(suo)機(ji)(ji)(ji)的(de)(de)(de)喘振點(dian)。
變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)日常使用(yong)中出現的(de)(de)(de)(de)一些問題,很多情況下都(dou)是(shi)因為變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)參(can)數設置(zhi)不(bu)當(dang)引起的(de)(de)(de)(de)。西門子(zi)變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)可設置(zhi)的(de)(de)(de)(de)參(can)數有幾千個,只有系(xi)統地(di)、合適(shi)地(di)、準確地(di)設置(zhi)參(can)數才能充分(fen)利用(yong)變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)性(xing)(xing)能。[1] 變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)控(kong)(kong)制(zhi)(zhi)方(fang)式(shi)(shi)的(de)(de)(de)(de)選擇由負(fu)荷的(de)(de)(de)(de)力(li)(li)矩(ju)(ju)(ju)(ju)特性(xing)(xing)所決定(ding)(ding),電動機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)機(ji)(ji)(ji)(ji)械(xie)負(fu)載(zai)轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)特性(xing)(xing)根據(ju)(ju)下列關(guan)系(xi)式(shi)(shi)決定(ding)(ding):p= t n/ 9550式(shi)(shi)中:p——電動機(ji)(ji)(ji)(ji)功(gong)率(lv)(kw)t——轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)(n. m)n——轉(zhuan)(zhuan)(zhuan)速(su)(su)(r/ min)轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)t與轉(zhuan)(zhuan)(zhuan)速(su)(su)n的(de)(de)(de)(de)關(guan)系(xi)根據(ju)(ju)負(fu)載(zai)種(zhong)類大體可分(fen)為3種(zhong)[2]。(1)即使速(su)(su)度變(bian)(bian)化(hua)轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)也不(bu)大變(bian)(bian)化(hua)的(de)(de)(de)(de)恒轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)負(fu)載(zai),此類負(fu)載(zai)如(ru)傳送(song)帶、起重機(ji)(ji)(ji)(ji)、擠壓機(ji)(ji)(ji)(ji)、壓縮機(ji)(ji)(ji)(ji)等(deng)。(2)隨著轉(zhuan)(zhuan)(zhuan)速(su)(su)的(de)(de)(de)(de)降低,轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)按轉(zhuan)(zhuan)(zhuan)速(su)(su)的(de)(de)(de)(de)平方(fang)減(jian)小(xiao)(xiao)的(de)(de)(de)(de)負(fu)載(zai)。此類負(fu)載(zai)如(ru)風機(ji)(ji)(ji)(ji)、各種(zhong)液(ye)體泵等(deng)。(3)轉(zhuan)(zhuan)(zhuan)速(su)(su)越高,轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)越小(xiao)(xiao)的(de)(de)(de)(de)恒功(gong)率(lv)負(fu)載(zai)。此類負(fu)載(zai)如(ru)軋機(ji)(ji)(ji)(ji)、機(ji)(ji)(ji)(ji)床(chuang)主軸、卷取機(ji)(ji)(ji)(ji)等(deng)。變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)提供的(de)(de)(de)(de)控(kong)(kong)制(zhi)(zhi)方(fang)式(shi)(shi)有v/f控(kong)(kong)制(zhi)(zhi)、矢量控(kong)(kong)制(zhi)(zhi)、力(li)(li)矩(ju)(ju)(ju)(ju)控(kong)(kong)制(zhi)(zhi)。v/f控(kong)(kong)制(zhi)(zhi)中有線性(xing)(xing)v/f控(kong)(kong)制(zhi)(zhi)、拋物線特性(xing)(xing)v/f控(kong)(kong)制(zhi)(zhi)。將變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)參(can)數p1300設為0,變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)(qi)工作(zuo)于線性(xing)(xing)v/f控(kong)(kong)制(zhi)(zhi)方(fang)式(shi)(shi),將使調速(su)(su)時(shi)的(de)(de)(de)(de)磁通與勵磁電流基本不(bu)變(bian)(bian)。適(shi)用(yong)于工作(zuo)轉(zhuan)(zhuan)(zhuan)速(su)(su)不(bu)在低頻(pin)(pin)(pin)(pin)段的(de)(de)(de)(de)一般恒轉(zhuan)(zhuan)(zhuan)矩(ju)(ju)(ju)(ju)調速(su)(su)對(dui)象。
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