西(xi)門子數控系統一級(ji)代理--產品保障

1、保證全新

2、保證售(shou)后服務質量

3、我方會根(gen)據詢價(jia)單型號(hao)查詢價(jia)格以(yi)及交貨期，擬一份詳細正(zheng)規報價(jia)單

4、報價單負責人根據客(ke)戶提(ti)供型號以(yi)及數量擬(ni)份銷(xiao)售合同

5、我公(gong)司(si)財務查到款后，業務員安(an)排發貨并通知(zhi)客戶(hu)跟蹤(zong)運單(dan)

本(ben)著“以人為本(ben)、科技(ji)先(xian)導、顧(gu)客滿意、持續改進”的(de)工作方(fang)針，致力于(yu)工業自動(dong)化(hua)控制(zhi)領(ling)域的(de)產品開(kai)發(fa)、工程配套和(he)系統(tong)集(ji)成，擁有豐(feng)富的(de)自動(dong)化(hua)產品的(de)應用(yong)和(he)實踐經驗(yan)以及雄厚的(de)技(ji)術力量(liang)，為廣大(da)用(yong)戶提供了SIEMENS的(de)技(ji)術及自動(dong)控制(zhi)的(de)解決方(fang)案，

SIEMENS 可編程控制器

1、 SIMATIC S7 系列PLC、S7200、s71200、S7300、S7400、ET200

2、 邏輯控制模塊 LOGO！230RC、230RCO、230RCL、24RC、24RCL等

3、 SITOP 系列直流電源 24V DC 1.3A、2.5A、3A、5A、10A、20A、40A

4、HMI 觸摸屏TD200 TD400C TP177,MP277 MP377

SIEMENS 交、直(zhi)流(liu)傳動裝置(zhi)，數(shu)控伺(si)服

西門子數控系統一級代理--動能緩沖（Vdc min 控制）

6.29 動能緩沖（Vdc min 控制(zhi)）

動能緩沖可以變頻器的可用性。在出現電壓驟降或電源掉電時，動能緩沖利用負載動能使設備繼續工作。電壓驟降期間，變頻器會盡可能使電機保持接通狀態。時間為一秒。

合理使用“動能緩沖"功能需遵(zun)循以下前提條件(jian)：

● 工作機(ji)械的回轉足夠大。

● 電(dian)機在電(dian)源掉電(dian)時能夠減(jian)速(su)制動。

Vdc_min 控制僅適用于功率(lv)模塊(kuai) PM240?2 和 PM240P?2。

如果電壓驟降，變頻器中的直流母線電壓也會下降。達到設定的閾值后，動能緩沖（VDCmin 控制）介入。VDC min 控制迫使負載輕再生。為此，變頻器會用負載動能彌補其損耗功率及電機中的損耗。期間，負載轉速下降，但直流母線電壓保持恒定。電源恢復后， 變頻器立(li)即再次正常。

公司經營范圍包括工業自(zi)(zi)動化(hua)設(she)(she)備(bei)，電(dian)(dian)子(zi)元器(qi)件，儀器(qi)儀表，電(dian)(dian)線電(dian)(dian)纜，通信設(she)(she)備(bei)及相關產品(pin)，電(dian)(dian)器(qi)設(she)(she)備(bei)，電(dian)(dian)氣設(she)(she)備(bei)，五金(jin)交電(dian)(dian)，電(dian)(dian)子(zi)設(she)(she)備(bei)，機電(dian)(dian)設(she)(she)備(bei)及配件，機械設(she)(she)備(bei)，電(dian)(dian)子(zi)產品(pin)銷售，機械設(she)(she)備(bei)安裝維修，從(cong)事“工業自(zi)(zi)動化(hua)、電(dian)(dian)子(zi)”科技領域內(nei)技術開發、技術轉讓、技術咨詢、技術服務等(deng)

同(tong)樣，NCU單(dan)元(yuan)中也集(ji)(ji)成(cheng)SINUMERIK840D數(shu)控(kong)CPU和SIMATIC PLC CPU芯片。包括相應的數(shu)控(kong)和PLC控(kong)制(zhi)，并(bing)且(qie)帶有MPI或(huo)Profibus接(jie)(jie)口(kou)，RS232接(jie)(jie)口(kou)，手輪及測(ce)量(liang)接(jie)(jie)口(kou)，PCMCIA卡插槽(cao)等，所不同(tong)的是NCU單(dan)元(yuan)很薄(bo)。所有的驅(qu)動(dong)模(mo)塊均排列(lie)在(zai)其(qi)右側，數(shu)字(zi)驅(qu)動(dong)，（請參閱Simodrive Universal 產(chan)(chan)品介紹）。數(shu)字(zi)伺服運動(dong)控(kong)制(zhi)的執(zhi)行部分(fen),由611D伺服驅(qu)動(dong)和1FT6(1FK6)電機組成(cheng)，SINUMERIK840D配置(zhi)的驅(qu)動(dong)一(yi)(yi)般都(dou)采用SIMODRIVE611D它包括兩(liang)部分(fen)電源模(mo)塊+驅(qu)動(dong)模(mo)塊（功率模(mo)塊）。西(xi)門子與(yu)內蒙(meng)(meng)烏蘭(lan)水泥、南(nan)(nan)(nan)方(fang)國(guo)(guo)際租(zu)(zu)(zu)(zu)賃有限公(gong)司(si)(si)簽(qian)署戰略合(he)(he)作協(xie)議(yi)，2006年6月(yue)2日(ri)，西(xi)門子（）有限公(gong)司(si)(si)、內蒙(meng)(meng)烏蘭(lan)水泥集(ji)(ji)團和南(nan)(nan)(nan)方(fang)國(guo)(guo)際租(zu)(zu)(zu)(zu)賃有限公(gong)司(si)(si)在(zai)北京舉行簽(qian)字(zi)儀式，就內蒙(meng)(meng)古(gu)烏蘭(lan)水泥集(ji)(ji)團節(jie)能(neng)項目簽(qian)訂(ding)《烏蘭(lan)水泥、西(xi)門子、南(nan)(nan)(nan)方(fang)租(zu)(zu)(zu)(zu)賃一(yi)(yi)體化節(jie)能(neng)項目框架合(he)(he)作協(xie)議(yi)書(shu)》、《南(nan)(nan)(nan)方(fang)租(zu)(zu)(zu)(zu)賃和西(xi)門子關(guan)于(yu)節(jie)能(neng)項目戰略合(he)(he)作協(xie)議(yi)書(shu)》、《烏蘭(lan)水泥與(yu)南(nan)(nan)(nan)方(fang)租(zu)(zu)(zu)(zu)賃關(guan)于(yu)節(jie)能(neng)項目的租(zu)(zu)(zu)(zu)賃合(he)(he)同(tong)》以及《南(nan)(nan)(nan)方(fang)租(zu)(zu)(zu)(zu)賃與(yu)上海(hai)西(xi)門子工(gong)業自(zi)動(dong)化工(gong)程(cheng)有限公(gong)司(si)(si)買賣合(he)(he)同(tong)》等一(yi)(yi)系列(lie)戰略協(xie)議(yi)書(shu)。該協(xie)議(yi)的簽(qian)訂(ding)對促進我國(guo)(guo)節(jie)能(neng)服務產(chan)(chan)業的發展具(ju)有重要意(yi)義，退出(chu)家電業。2014年09月(yue)25日(ri)，德(de)國(guo)(guo)西(xi)門子公(gong)司(si)(si)宣布。

什么是西門(men)子6SE70變頻(pin)柜失速防止功能?

西門子(zi)6SE70變頻柜(ju)和(he)機(ji)械電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)應于(yu)其(qi)他電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)線(xian)路..具有多個(ge)傳輸(shu)單元(yuan)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)可以一個(ge)地并聯(lian)連接(jie)。建議將電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、輸(shu)入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和(he)控制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)安裝在不同的(de)(de)(de)槽架中，避免電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)與其(qi)他電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)長并聯(lian)布線(xian)，從而變頻器輸(shu)出電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)瞬(shun)變引起的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁。當控制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)必須交叉走線(xian)時，應使交叉角度(du)為90度(du)。其(qi)它額外的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)不要穿過電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)槽之間以及電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)槽和(he)接(jie)地電(dian)(dian)(dian)(dian)(dian)(dian)極之間必須有良好的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)氣連接(jie)。鋁槽系統可以用(yong)來局部電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)(de)均衡性功率電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)選擇一般規則根據地方規范來選擇主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)源(輸(shu)入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)源)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)(de)型號:電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)必須能(neng)夠承受傳動單元(yuan)的(de)(de)(de)負裁電(dian)(dian)(dian)(dian)(dian)(dian)流。

在連(lian)續(xu)使(shi)(shi)(shi)(shi)用的(de)(de)(de)(de)條件(jian)下(xia)(xia)，電(dian)(dian)(dian)(dian)纜(lan)(lan)至少(shao)應(ying)耐70°C的(de)(de)(de)(de)溫度。允許使(shi)(shi)(shi)(shi)用四芯電(dian)(dian)(dian)(dian)纜(lan)(lan)作(zuo)為電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)纜(lan)(lan)，但使(shi)(shi)(shi)(shi)用對(dui)稱屏(ping)蔽(bi)電(dian)(dian)(dian)(dian)纜(lan)(lan)。當(dang)PE導(dao)線(xian)(xian)(xian)(xian)和(he)(he)相導(dao)線(xian)(xian)(xian)(xian)是(shi)使(shi)(shi)(shi)(shi)用同(tong)種金(jin)屬(shu)制(zhi)造時，為PE導(dao)線(xian)(xian)(xian)(xian)的(de)(de)(de)(de)導(dao)電(dian)(dian)(dian)(dian)率，需遵守下(xia)(xia)表(biao)所(suo)薦(jian)選擇控(kong)制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)所(suo)有的(de)(de)(de)(de)控(kong)制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)必須采(cai)用屏(ping)蔽(bi)型電(dian)(dian)(dian)(dian)纜(lan)(lan)。模(mo)擬(ni)信(xin)(xin)號(hao)傳輸(shu)(shu)線(xian)(xian)(xian)(xian)采(cai)用雙(shuang)屏(ping)蔽(bi)雙(shuang)絞(jiao)線(xian)(xian)(xian)(xian)。脈沖(chong)編碼信(xin)(xin)號(hao)的(de)(de)(de)(de)傳輸(shu)(shu)線(xian)(xian)(xian)(xian)也使(shi)(shi)(shi)(shi)用這種電(dian)(dian)(dian)(dian)纜(lan)(lan)。不同(tong)的(de)(de)(de)(de)模(mo)擬(ni)信(xin)(xin)號(hao)應(ying)單獨(du)接線(xian)(xian)(xian)(xian)，不得使(shi)(shi)(shi)(shi)用相同(tong)的(de)(de)(de)(de)公回流線(xian)(xian)(xian)(xian)。低壓數(shu)字(zi)信(xin)(xin)號(hao)線(xian)(xian)(xian)(xian)宜采(cai)用雙(shuang)屏(ping)蔽(bi)電(dian)(dian)(dian)(dian)纜(lan)(lan)，或采(cai)用單屏(ping)蔽(bi)雙(shuang)線(xian)(xian)(xian)(xian)。模(mo)擬(ni)和(he)(he)數(shu)字(zi)信(xin)(xin)號(hao)應(ying)使(shi)(shi)(shi)(shi)用單獨(du)的(de)(de)(de)(de)屏(ping)蔽(bi)電(dian)(dian)(dian)(dian)纜(lan)(lan)。什么(me)是(shi)西門子(zi)6SE70變頻(pin)柜失(shi)速(su)防(fang)止(zhi)功能?一般(ban)來(lai)(lai)說(shuo)，如果給(gei)定的(de)(de)(de)(de)加速(su)時間過短，變頻(pin)器的(de)(de)(de)(de)輸(shu)(shu)出變化遠遠超(chao)過轉速(su)(電(dian)(dian)(dian)(dian)角(jiao))的(de)(de)(de)(de)變化，變頻(pin)器將(jiang)因過電(dian)(dian)(dian)(dian)流而跳(tiao)閘，運(yun)(yun)轉停止(zhi)，這就(jiu)(jiu)叫做失(shi)速(su)。為了(le)防(fang)止(zhi)失(shi)速(su)使(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)機(ji)繼續(xu)運(yun)(yun)轉，就(jiu)(jiu)要檢(jian)出電(dian)(dian)(dian)(dian)流的(de)(de)(de)(de)大小進行控(kong)制(zhi)。當(dang)加速(su)電(dian)(dian)(dian)(dian)流過大時適(shi)當(dang)放慢加速(su)速(su)率。減速(su)時也是(shi)如此(ci)。兩(liang)者結合起來(lai)(lai)就(jiu)(jiu)是(shi)失(shi)速(su)功能。下(xia)(xia)面針對(dui)這個問題為給(gei)大家來(lai)(lai)仔細講(jiang)解。

西門子6SE7O變頻柜的失速防止功能包括兩個方面:

1、加速(su)(su)(su)(su)(su)中:(1)加速(su)(su)(su)(su)(su)時(shi)(shi)間(jian)若預置的(de)過(guo)(guo)短，容易因(yin)過(guo)(guo)電流(liu)而跳(tiao)閘。(2)加速(su)(su)(su)(su)(su)時(shi)(shi)間(jian)過(guo)(guo)長，又(you)會影(ying)響(xiang)機(ji)臺(tai)運行效率。況且，生(sheng)產機(ji)臺(tai)的(de)工況也時(shi)(shi)有變化，這(zhe)給用戶在預置“加速(su)(su)(su)(su)(su)時(shi)(shi)間(jian)”時(shi)(shi)帶來了困難，難以迅速(su)(su)(su)(su)(su)地預置的(de)恰到好處。變頻(pin)器(qi)在加速(su)(su)(su)(su)(su)中出現過(guo)(guo)電流(liu)時(shi)(shi)，可以不(bu)必跳(tiao)閘，而啟動“防止跳(tiao)閘”程(cheng)序。具體方法是:如果在加速(su)(su)(su)(su)(su)中，電流(liu)超過(guo)(guo)了預置的(de)上(shang)(shang)限值(zhi)，變頻(pin)器(qi)的(de)輸(shu)出將不(bu)再，暫緩加速(su)(su)(su)(su)(su)，待電流(liu)下降到上(shang)(shang)限值(zhi)以下后再繼續加速(su)(su)(su)(su)(su)。

2、減(jian)速中(zhong):對(dui)于慣性較大的(de)負載，如果(guo)減(jian)速時(shi)間預置(zhi)的(de)過短，會(hui)因(yin)拖動系統的(de)功能釋放得太快而引起直(zhi)流回路的(de)過電壓。如果(guo)在減(jian)速中(zhong)，直(zhi)流電壓超過了上限值，變(bian)頻(pin)器的(de)輸出不再下(xia)(xia)降(jiang)，暫緩(huan)減(jian)速，待直(zhi)流電壓下(xia)(xia)降(jiang)到(dao)設(she)定值。