電機為交流異步電機，紙機設計最高轉速為1800m/min,傳動控制系統(tǒng)為TMdrive-10e2，PWM控制的交直交變頻矢量控制系統(tǒng)，功率元件采用絕緣柵雙極晶體管(IGBT)。
傳動逆變器柜類型較多，250KVA以下為抽屜式，250KVA以上為柜式結構，根據(jù)電機容量的差異來選用不同容量控制系統(tǒng)，用于紙機的變頻控制。
逆變器的傳動矢量控制組成：速度給定環(huán)節(jié)、速度調(diào)節(jié)器、D/Q軸電流調(diào)節(jié)器、磁通調(diào)節(jié)器、電壓調(diào)節(jié)器、PWM控制器等組成。主板在矢量控制系統(tǒng)完成IGBT觸發(fā)信號后，把觸發(fā)脈沖傳送到逆變器，控制IGBT導通和關斷，得到所需電機近似于正弦波的輸入電壓和頻率，進而調(diào)節(jié)電機轉速。
2.4 數(shù)據(jù)通信
傳動系統(tǒng)和PLC間通信采用FL-NET總線,光纖連接，變頻器與HUB之間，以太網(wǎng)通訊。結構仍以圖2為例。
PLC系統(tǒng)配置了一塊FL612接口模塊和一塊EGD模塊，與各變頻器進行數(shù)據(jù)交換。各變頻器地址均在EGD中配置，傳動與PLC的通信及傳動與傳動之間的通信都是通過EGD來完成數(shù)據(jù)交換的。
FL-NET網(wǎng)絡以Ethernet為物理層，采用總線拓撲結構，是日本采納的一種PLC網(wǎng)絡標準，其協(xié)議棧高層為UDP/IP+ UDP/IP+獨自循環(huán)通信協(xié)議，保證了通信的實時性。
完成PLC系統(tǒng)與傳動系統(tǒng)間數(shù)據(jù)交換基于EGD(Ethernet Global Data)以太網(wǎng)全局數(shù)據(jù)處理通信，EGD協(xié)議是美國GE自動化公司基于以太網(wǎng)技術的數(shù)據(jù)交換協(xié)議，它以數(shù)據(jù)報文形式在一個發(fā)送者和多個發(fā)送者之間實現(xiàn)100Mbps數(shù)據(jù)高速傳送，遵循UDP/IP獨自循環(huán)通信協(xié)議。數(shù)據(jù)發(fā)送時間間隔短，安全性強，不易丟失，各站為雙向角色，既是服務器也是客戶端。
3. 系統(tǒng)控制功能
TMEIC集成控制器完成整個紙機的速度計算與控制、負荷分配計算與控制、電機同步計算與保護等功能。
衛(wèi)生紙機的速度基準以烘缸Yankee為準，Yankee烘缸由兩臺電機驅動，1#Yankee電機為master，控制方式為速度控制，2#Yankee電機為slave，控制方式為轉矩控制，兩臺電機為一個整體，要求速度同步。generation of control system will fully meet or exceed that of similar imported brand equipment, and meet the upgrading of equipment, with considerable flexibility and expansion.
In order to achieve the preset R & D objectives, at the beginning of the project, the brand and model selection of PLC, the core controller of the control system, has become one of the key factors affecting the success or failure of the project. After repeated comparison of various series PLCs of the mainstream brand PLC in the system, it is finally determined to select the latest small PLC s7-1200 launched by Siemens as the core controller of the control system of the new generation reflow equipment.
Jintuo's new generation RN (a) d reflow soldering equipment was launched on the market in the spring of 2010 and was immediately supported by our customers. Many superior performances such as the significant improvement of production efficiency, the significant reduction of energy consumption and humanized design have been highly praised by customers. The good performance of the equipment must rely on the high reliability and good
