關鍵詞:TFT-LCD 制程解析 PLC設計
Abstract
This thesis has completed a problem about the PLC software designing of whetting edge. It is a motor control system, which designed by industry local requirement. It is mostly applied in liquid crystal monitor producing.At the same time this thesis will be the TFT-LCD manufacturing process to resolve the issues related to large-scale factory production guide
Programmable Logic Controller (PLC) and Frequency Converter were used in p roducing. PLC is the digital electronic system, which specially applied in industry. On the basis of microprocessor, it integrates Computer technology, auto control technolo- gy. In addition, it is one of standard equipment in advanced industry country. Freque- ncy Converter Timing is a timing mode, which takes precedence of any other formerl- y timing mode. It is utmost benefit, best capability, broad application and best prom- ising motor timing technology.
The application of PLC and Frequency Converter in liquid crystal monitor prod- uction has been researched in this thesis. The information will be transmitted to PLC by sensor placed on different position. The PLC control the frequency converter to chan- ge frequency though these different information. And let the three-phase asynchrono- us motor output speed of different purposes. The precision glass processing will be achieved. Many problems were analyzed in application and characteristic of system, points out achievement in Frequency Converter technology, gives out meaning, basis, content of research and innovation.
Keywords: TFT-LCD ; Processing resolvation ; Design of PLC procedure
目 錄
摘要 I
Abstract II
第一章 緒 論 1
第二章 磨邊系統中樞——PLC 5
2.1 可編程控制器概述 5
2.2 PLC的結構和工作原理 6
2.2.1 PLC的結構 6
2.2.3 PLC的工作原理 7
第三章 磨邊伺服系統 11
3.1 概述 11
3.2 三相異步電動機的工作原理 11
3.3 三相異步電動機的旋轉磁場 12
3.4 交流調速的基本類型 13
3.5 變頻器的基本原理 14
3.5.1基頻以下調速 15
3.5.2基頻以上調速 16
第四章 TFT-LCD磨邊程序系統的硬件設計 18
4.1 制程簡介 18
4.2 系統硬件的選型 19
4.2.1 傳輸軸及傳感器 19
4.2.2 可編程控制器(PLC) 20
4.2.3 變頻器 20
4.2.4 PLC控制變頻器的數據通信 21
4.3 制程詳述 23
4.3.1 粗對位 23
4.3.2 精確對位 24
4.3.3 磨邊 25
4.4 系統硬件的設計 25
第五章 TFT-LCD磨邊程序系統的軟件設計 26
5.1 主要技術環節 26
5.2 I/O表 26
5.3 程序流程圖 28
5.4 梯形圖程序設計 29
第六章 TFT-LCD制程解析 34
6.1 MES系統在TFT-LCD制程解析中的應用 34
6.2 MES系統良率管控 35
6.3 制程缺陷要因分析 36
6.4 制程短期對策以及長期對策的擬定 38
總 結 39
參考文獻 40
致 謝 41
附 錄 42