F8-G2B9B3B6電源冗余模塊，PHARPS32200000實(shí)驗(yàn)數(shù)據(jù)
詳細(xì)的產(chǎn)品介紹及技術(shù)參數(shù)如下：
輸入電壓范圍：175-264VAC
輸入過壓保護(hù)
隔離電壓：4500VAC
雙路隔離輸出：12V&36VDC輸出
EMC性能優(yōu)異，抗干擾能力強(qiáng)
F8-G2B9B3B6電源冗余模塊，PHARPS32200000實(shí)驗(yàn)數(shù)據(jù)四表合一接口轉(zhuǎn)換器需求的供電電壓雖然繁多，但并不是每個(gè)電壓都要相互隔離，相反，考慮到產(chǎn)品的體積、可靠性及成本等因素，雙路隔離方案是最優(yōu)的方案。與直接多路輸出的方案相比，雙路隔離輸出的方案降低了設(shè)計(jì)難度的同時(shí)提高可靠性，減少每路之間相互干擾，避免了共地連接的問題。本文推薦的應(yīng)用方案，需求隔離的部分直接從AC-DC電源隔離取出，不需要的地方通過自搭降壓芯片降壓輸出，不僅提升了供電方案的可靠性，也大幅度的降低了供電電源的體積和成本。通過對EC100主控板的輸入信號和輸出信號進(jìn)行編程控制，提供二次開發(fā)接口給電梯廠工程師，滿足用戶便捷的調(diào)試仿真邏輯，并能夠方便的開發(fā)出特定模式的應(yīng)用。電梯廠工程師能夠通過編輯上位機(jī)圖形軟件方式對開放接口進(jìn)行編程，從而提高產(chǎn)品應(yīng)用的靈活性和便捷性。變頻器過載能力150%額定電流下60S保護(hù)，180%額定電流10秒鐘保護(hù)，對于電梯來講選擇變頻器以下計(jì)算方式： 180%變頻器額定電流≥200%電機(jī)額定電流電梯在上行或下行的過程中由于負(fù)載的不同，電動機(jī)將處于再生發(fā)電狀態(tài)。逆變器中的六個(gè)回饋二極管將傳動機(jī)構(gòu)的機(jī)械能轉(zhuǎn)換成電能回饋到中間直流回路，并引起儲能電容兩端電壓升高。若不采取必要的措施，當(dāng)直流回路電容電壓升到保護(hù)極限值后變頻器將過電壓跳閘。對門機(jī)電機(jī)驅(qū)動電源，由于要求啟動快、動作迅速，所有屏蔽門均采用直流電機(jī)，因此，驅(qū)動電源需要滿足直流電機(jī)啟動的沖擊特性需求，在屏蔽門正常動作時(shí)，電源系統(tǒng)提供功率3～5 kW，啟動瞬間達(dá)到8 ～40 kW；門機(jī)驅(qū)動電機(jī)通常有DC110V 和DC48V 兩種電壓等級，單臺標(biāo)稱電機(jī)功率在80～150 W不等。對屏蔽門控制系統(tǒng)供電通常為DC110V和DC24V。一般采用DC24V，由于地鐵站臺比較長，部分廠家在安全回路會采用比較高的直流電壓。對屏蔽門系統(tǒng)的監(jiān)控工控機(jī)，采用AC220V 供電和DC24V供電。
equipment, reliability is of course required to be put in the first place. At present, the industry basically adopts PLC with high reliability as the controller to design and develop the control system of sports car protection device.
It is the key of this system to judge whether the tramcar reaches the barrier and needs to open it. At present, there are three ways to locate the position of tramcar in the industry: encoder positioning, depth indicator positioning and track sensor positioning. This paper discusses the selection of depth indicator positioning mode.
3. Composition of control system
Mitsubishi FX series PLC has a large market share in China. In this project, we use Mitsubishi fx3ga (fx3ga-24mr-cm) as the main controller. Each main controller is extended with an RS485 communication port (fx3g-cnv-adp + fx3u-485adp-mb). Multiple controllers are connected to the network through the extended RS485 communication port (Mitsubishi calls it n:n network). In the network, the master station controller is arranged in the transportation winch control room to collect the position signal of the tramcar; The substation
