2711P-T10C4A8
選用西門子840D數(shù)控系統(tǒng)改造原數(shù)控龍門銑床的SINUMERIK 8MC數(shù)控系統(tǒng)。新系統(tǒng)包括“10.4"彩色TFT(OP031)顯示器、MMC103帶硬盤。MMC軟件版本為5.3版本,WINDOWS 95操作系統(tǒng),“3.5"軟驅(qū)，R232標準通訊口。NCU為572.3系統(tǒng)，軟件版本為840D的5.3版本。PLC采用S7-300輸入/輸出模塊，同時利用840數(shù)控系統(tǒng)的PROFIBUS接口加裝13個S7-ET200BPLC模塊(其中兩塊模擬輸出模塊)，建立4個遠程控制分站。該接口數(shù)據(jù)傳輸速度為1.5Mbaudrate,遠高于X122接口187.5Kbaudrate的傳輸速度,提高了數(shù)據(jù)傳輸速度。各分站之間采用西門子專用通訊電纜,與CPU進行數(shù)據(jù)通訊,這樣即節(jié)省控制電纜使用數(shù)量,也降低了電氣故障率。該機床還具有龍門軸功能及主-從功能(主要解決X1、XA1,W1、WA1同步運行)以及五軸聯(lián)動功能,中文顯示,標準的固定循環(huán),具有840D標準的系統(tǒng)功能。
驅(qū)動系統(tǒng)及電動機的配置
選用了西門子611D數(shù)字伺服驅(qū)動系統(tǒng)及1FT6系列交流伺服電動機改造X1軸，XA1軸, Y軸，Z軸，W1軸，WA1軸,S軸，選用西門子611D數(shù)字模塊進行控制。
PLC部分
選用西門子S7－300和S7-ET200B改造原S5-PLC。采用SIEMENS 840D標準機床控制面板及用戶操作面板實現(xiàn)機床的一些輔助動作和功能。
機床標準功能設(shè)置
首先通過根據(jù)原機床標準功能，自行設(shè)計電氣原理圖，并組織現(xiàn)場安裝調(diào)試進行PLC、NC聯(lián)機調(diào)試。
通過選用HEIDENHAIN直線光柵尺(LB382C)更換原Y軸、Z軸、W1軸、WA1軸測量系統(tǒng)。用HEIDENHAIN的增量編碼器(ROD485)更換原X軸位置編碼器，主軸定向編碼器。 X軸同步功能利用2臺增量編碼器(ROD485)。利用840D的龍門軸功能實現(xiàn)X1軸、XA1軸兩臺電動機的同步運行。W軸同步功能利用LB382C直線光柵尺(左右各安裝一根直線光柵尺)。利用840D的龍門軸功能，實現(xiàn)W1軸、WA1軸2臺電動機的同步運行，并在WA1側(cè)設(shè)有微調(diào)電動機作為手動橫梁水平調(diào)整之用。
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