頁籤選單縮合
題名 | 二、三號扁鋼胚連鑄機電氣設備改造=Revamping of the Electrical Equipment for No.2,3 Slab Caster |
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作 者 | 謝勳超; | 書刊名 | 技術與訓練 |
卷期 | 23:2=189 1998.04[民87.04] |
頁次 | 頁37-48 |
專輯 | 電控專集 |
分類號 | 454.89 |
關鍵詞 | 可程式控制器; 分散式控制系統; 葛雷碼編碼器; PLC; DCS; Gray code encoder; |
語文 | 中文(Chinese) |
中文摘要 | 2、3號扁鋼胚連鑄機從1982完成熱試車以來已超過15年,控制設備之備品已無法購 得且操作功能需求增加,現有控制系統已不能滿足要求,因此改造時需要考慮功能更強的控 制系統,改造項目如下: 1.現有6套(PLC(150A)將被升級成更新更快速之PLC(155U),之間並以網路連結,傳統式控 制桌將被一套分散式控制系統取代並與PLC連接,這些控制系統組成一套人機介面控制扁鋼 胚連鑄機。 2.為了保持模子鋼液面穩定,數位化控制器將取代舊有系統,使液面能控制在±5mm 以內, 新系統將增加兩項功能即自動啟鑄和自動收尾功能。 3.現有轉台定位控制已無法符合操作要求,變頻器及葛雷碼編碼器將取代舊有之設備並增設 自動停止功能,改造後轉台能準確的定位在1度以內。 本文內容主要說明改造試車並且比較改造前後功能。 |
英文摘要 | Over 15 years the No.2 & 3 slab casters had commissioned since 1982. The spare parts of control system are not available and more functions are request by operator. The existing control system cannot meet requirement already. Thus more powerful control systems shall be considered. Revamping items show as follows: 1.Six PLCs shall be up grade to the new type and fast PLC link with H1 Bus. The conventional control desks will be replaced by a distribution control system and link with PCL. These control systems are combined to a man machine interface which controls the salb caster. 2.In order to keep mold steel level in constant, Digital controller will use in new system to keep level within±5mm. Two functions are added in the revamping job i.e. auto start and auto end functions. 3.The existing LD rotator positioning control cannot meet operator requirement. VVVF controller and gray code encoder will replace existing equipment to meet requirement. Additional auto start/stop functions will be provided. The content of this paper describes revamping job and compare with those before revamping. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。