論文報告包含我的實習經驗以及我的實習改進專案。實習經驗部分描述了我在實習期間的經歷與工作細節，我在 SEYI 公司擔任電氣控制工程師的角色，主要負責設計 SEYI沖壓機的電氣部分與自動化控制系統。我使用 3D SolidWorks CAD 程式設計沖壓機的組件，此外，我也負責沖壓機製造訂單的 BOM（物料清單）文件製作。除此之外，論文還說明了我參與檢驗 SEYI 工廠內沖壓機品質的工作，主要包括伺服馬達的品質檢驗、沖壓機功能測試、機械電氣系統測試等。
此外，在實習期間，我針對 SEYI 沖壓機進行了兩項改進專案，分別是「設計沖壓機前安全門的電氣部分」以及「改進落地式控制櫃標準」。在「設計沖壓機前安全門的電氣部分」專案中，我設計了電氣控制圖，將前安全門系統所需的組件加入電氣圖中，並使用 SolidWorks 及 Excel 功能估算前安全門的電纜長度。此外，我還使用 Mitsubishi PLC 的梯形圖（LD）編寫前安全門的控制系統 PLC 程式，並設計 HMI 介面。
在「改進落地式控制櫃標準」專案中，主要工作是提升控制櫃的標準，包括重新設計櫃體結構及控制面板，以支援新型門鉸鏈的安裝，並設計內部隱藏式安裝方式。此外，還改進了控制櫃的接地系統，以防止電流洩漏，並重新設計控制面板的銘牌，以提高安裝與生產的便利性。本專案共設計了兩種不同類型的控制櫃，分別為左側配線型與右側配線型。

The thesis report consists of my internship experience and my internship improvement projects. The internship experience part describes my work during the internship period and the details of my tasks, where I worked as an Electrical Control Engineer at SEYI Company. I was involved in designing the electrical components and automation control system of the SEYI pressing machine using the 3D SolidWorks CAD program to design various components of the pressing machine. Moreover, I worked on the Bill of Materials (BOM) document for pressing machine manufacturing orders. In addition to the thesis, I was assigned to inspect the quality of the pressing machine at SEYI’s factory, where I inspected the servo motor quality, tested pressing machine features, and tested the machine’s electrical system, among other tasks.
     Furthermore, during my internship, I improved the SEYI pressing machine through two projects: designing the electrical part of the front safety door and improving the ground-type control cabinet standard. In the project for designing the electrical part of the front safety door, I created electrical control drawings by adding the required components of the front safety door system to the electrical drawings and estimated the cable length using SolidWorks and Excel. Additionally, I designed the PLC control system code for the front safety door using ladder diagrams (LD) for Mitsubishi PLC and HMI.
In the project to improve the ground-type control cabinet standard, I worked on redesigning the cabinet structure and console plate to support a new model of door hinge and designed the installation to be hidden inside the cabinet. I also improved the grounding system of the control cabinet to prevent electrical leakage and redesigned the console nameplate to a new type for easier installation and production. The project included redesigning two types of cabinets: one with cable wiring from the left side and one with cable wiring from the right side of the cabinet.

List of Contents
Acknowledgments	i
List of Contents	v
List of Figures	viii
List of Tables	xiii
Company Overview	1
Company Background	1
Electrical Control Department	3
Overview of Internship	6
Internship Experience	6
My Training Projects	6
Internship Working Details	7
Internship Working Details: Bill of Materials	7
Internship Working Detail: Design Modify and Improving Electrical Control 3D Component	12
Internship Working Details: Design Modify and Improving Electrical Control Drawing	15
Internship Working Details: Estimate Cable Length Drawing	18
Internship Working Details: Design, Modify and Improving Pressing Machine Control System	20
Internship Working Details: Inspection of Pressing Machine	23
Internship Working Details: Introduce Company to Thai Guest	30
Internship Working Details: Participate Company Activities	31
Internship Project	34
Chapter 1: Introduction	34
1.1 Improve Ground-Type Control Cabinet Standard of SEYI Pressing Machine	34
1.1.1. Improve Ground-Type Control Cabinet Standard of SEYI Pressing Machine Introduction	34
1.1.2. Improve Ground-Type Control Cabinet Standard of SEYI Pressing Machine Project Propose	35
1.1.3 Improve Ground-Type Control Cabinet Standard of SEYI Pressing Machine Project Scope	35
1.2 Design the Front Safety Door Control Systems of SEYI Pressing Machine	35
1.2.1. Design the Front Safety Door Control Systems of SEYI Pressing Machine Project	35
Introduction	35
1.2.2. Design the Front Safety Door Control Systems of SEYI Pressing Machine Project Propose	36
1.2.3 Design the Front Safety Door Control Systems of SEYI Pressing Machine Project Scope	36
Chapter 2: Literature Review	37
2.1 SEYI Pressing Machine	37
2.1.1 Mechanical System of SEYI Pressing Machine	39
2.1.1.1 Mechanical Component of Pressing Machine	39
2.1.1.2 Mechanical Power Transmission System of Pressing Machine	44
2.1.2 Electrical System of SEYI Pressing Machine	45
2.1.2.1 Architecture of Electrical Control System	45
2.1.2.2 Electrical Components of Pressing Machine	48
2.2 SolidWorks	53
2.3 Control System of SEYI Pressing Machine	57
2.3.1 PLC	57
2.3.1.1 PLC Hardware Architecture	57
2.3.1.2 PLC Programming	63
2.3.1.2.1 Ladder Diagram (LD)	63
2.3.1.2.2 Function Block Diagram	70
2.3.1.2.3 Sequential Function Chart (SFC)	71
2.3.2 HMI	72
2.3.2.1 HMI Hardware Architecture	72
Chapter 3: Materials and Methods	73
3.1 Improve Ground-Type Control Cabinet Standard of SEYI Pressing Machine	73
3.1.1	Material, Hardware, and Software	73
3.1.2 Methods	74
3.1.2.1 Project Work Steps	74
3.2 Design the Front Safety Door Control Systems of SEYI Pressing Machine	78
3.2.1	Material, Hardware, and Software	78
3.2.2 Method	81
3.2.2.1 Project Working Steps	81
3.2.2.2 Front Safety Door Programming flow chart	82
3.2.2.3 PLC Programming	83
Chapter 4: Results and Discussion	86
4.1 Improve Ground-Type Control Cabinet Standard of SEYI Pressing Machine	86
4.1.1 Design the Cable Wiring From Right Side of Cabinet Ground-Type Control Cabinet Model	86
4.1.2 Design the Cable Wiring From Left Side of Cabinet Ground-Type Control Cabinet Model	91
4.1.3 Design the Console Plate of Ground-Type Control Cabinet	94
4.1.4 Design the Name Plate of Ground-Type Control Cabinet	95
4.2 Design the Front Safety Door Control Systems of SEYI Pressing Machine	96
4.2.1 Design the Electrical Circuit Drawing of the Front Safety Door	96
4.2.2 Design the Front Safety Door Control Panel	101
4.2.3 Design the Front Safety Door Cable Specification Drawing	102
4.2.4 Design the Control System of Front Safety Door of Pressing Machine	103
Chapter 5: Conclusion	107
5.1 Improve Ground-Type Control Cabinet Standard of SEYI Pressing Machine	107
5.2 Design the Front Safety Door Control Systems of SEYI Pressing Machine	107
Appendix	109
Appendix A	110
Internship PLC Training Course Program Code	110
References	131


 
List of Figures
Figure 1 The 1st Generation Pressing Machine Made in 1960s: Open-Back Inclinable Power Press.	1
Figure 2 SEYI Servo Pressing Machine	3
Figure 3 Example of Bill of Material Results	10
Figure 4 Example of Report	10
Figure 5 Example of New Material Report	11
Figure 6 Example of Internship Drawing Task1	13
Figure 7 Example of Internship Drawing Task 2	14
Figure 8 Example of Electrical Circuit drawing Tasks	17
Figure 9 Example of Use Excel to Analyze Total Cable Length.	19
Figure 10 Example of Employing SolidWorks Measure Cable Length Method.	19
Figure 11 Example of My Modified Electrical Cable Length Drawing Results.	20
Figure 12 Example of PLC Program that I Am Working on During Internship	22
Figure 13 Example of HMI Program that I Am Working on During Internship	22
Figure 14 Configuring and Debugging PLC, HMI Special Model	23
Figure 15 Inspect Motor Phase of Motor and Encoder	24
Figure 16 Inspect Motor Insulation	24
Figure 17 First Inspection Electrical Component of Pressing Machine 1	25
Figure 18 First Inspection Electrical Component of Pressing Machine 2	26
Figure 19 Installation of Calibration Sensor for Tonnage Testing Method	27
Figure 20 Tonnage Setting Page on Pressing Machine Control System	27
Figure 21 Tonnage Testing with Electrical Department	28
Figure 22 Final Testing Pressing Machine with Colleagues.	29
Figure 23 Final Testing 1200 Ton Pressing Machine with Colleague	29
Figure 24 Introduce SEYI Servo Pressing Machine to Thailand Customer Visitors.	31
Figure 25 I and Control electrical Department Colleagues Participated in the Tug of War.	32
Figure 26 Karaoke Party with Control Electrical Department Colleagues	33
Figure 27 Example of SEYI Servo Pressing Machine	38
Figure 28 Example of SEYI Mechanical Pressing Machine	38
Figure 29 Mechanical Component of Pressing Machine1	40
Figure 30 Mechanical Component of Pressing Machine2	40
Figure 31 Mechanical Component of Pressing Machine3	41
Figure 32 Mechanical Component of Pressing Machine4	41
Figure 33 Mechanical Component of Pressing Machine5	43
Figure 34 Mechanical Component of Pressing Machine6	43
Figure 35 Schematic of Power Transmission of Mechanical Pressing Machine	44
Figure 36 Schematic of Power Transmission of Servo Pressing Machine	45
Figure 37 Architecture of Main Control System of Pressing Machine	46
Figure 38 Architecture of Servo Control System of Pressing Machine	47
Figure 39 Architecture of Tonnage Measurement System of Pressing Machine.	48
Figure 40  Example of Servo Control System Cabinets.	49
Figure 41  Example of Electrical Component of Control Cabinet	51
Figure 42 Example of Electrical Component Installation in Servo Room	52
Figure 43 Example of Component Installation in Transformer Cabinet	52
Figure 44 SolidWorks Sketch and Basic Feature Environment	55
Figure 45 SolidWorks Assembly Feature Environment	56
Figure 46 SolidWorks Drawing Feature Environment	57
Figure 47 Architecture of PLC Hardware	58
Figure 48 Architecture of PLC Hardware	59
Figure 49 Example of PLC CPU Compact and Modular Type	60
Figure 50 Example of PLC power supply	61
Figure 51 Example of PLC Input/Output Module	61
Figure 52 Example of PLC Input/Output Module Components	62
Figure 53 Example of PLC Communication Module	63
Figure 54 Example of NO, NC LD PLC Program	64
Figure 55 Example of LDI, LDF LD PLC Program	64
Figure 56 Example of ANB, ORB LD PLC Program	65
Figure 57 Example of OUT LD PLC Program	65
Figure 58 Example of OUT T LD PLC Program	66
Figure 59 Example of OUT C LD PLC Program	66
Figure 60 Example of SET, RSET LD PLC Program	66
Figure 61 Example of PLS,PLF LD PLC Program	67
Figure 62 Example of FF LD PLC Program	67
Figure 63 Example of MC, MCR LD PLC Program	68
Figure 64 Example of Data Comparison LD PLC Program	69
Figure 65 Example of MOV(P), DMOV(P) LD PLC Program	69
Figure 66 Example of Function Block Diagram PLC Program	70
Figure 67 Example of SFC PLC Program	71
Figure 68 Example of HMI in Automation Industry	72
Figure 69 Computer	73
Figure 70 Solidworks	73
Figure 71 Example of BOM Document	74
Figure 72 Example of Control Cabinet Layout	75
Figure 73 Control Cabinet Cooling System	75
Figure 74 Control Cabinet 3D CAD Parts	76
Figure 75 Control Cabinet 3D Assembly CAD	76
Figure 76 Control Cabinet 2D Drawing CAD	77
Figure 77 BOM Report Document	77
Figure 78 Computer2	78
Figure 79 AutoCAD Electronic	78
Figure 80 Gxwork2, GTdesigner3	78
Figure 81 PLC and HMI	79
Figure 82 Push Button Switch and Selector Switch	79
Figure 83 Main Control Cabinet, Control Box and Control Panel	80
Figure 84 Lead Switch and Limited Switch	80
Figure 85 Pneumatic 3/2 Valve and Pneumatic Cylinder	80
Figure 86 Front Safety Door Control Systems Flowchart	82
Figure 87 PLC Programming 1	83
Figure 88 PLC Programming 2	83
Figure 89 PLC Programming 3	84
Figure 90 PLC Programming 4	84
Figure 91 PLC Programming 5	85
Figure 92 Comparison of Ground-Type Control Cabinet Cable Wiring a Right Side Old and New Version.	87
Figure 93 Manipulate of Console Plate of Ground-Type Control Cabinet	87
Figure 94 Overall View of Cable Wiring From Right Side of Cabinet Ground-Type Control cabinet	88
Figure 95 2D Drawing of Cable Wiring Right Side Ground-Type Control Cabinet	89
Figure 96 Ground-Type Control Cabinet New Model Door Hinge	90
Figure 97 Comparison of Ground-Type Control Cabinet Cable Wiring a Left Side Old and New Version.	91
Figure 98 Overall View of Cable Wiring from Left Side of Cabinet Ground-Type Control Cabinet	92
Figure 99 2D Drawing of Cable Wiring Left Side Ground-Type Control Cabinet	93
Figure 100 3D Drawing of Console Plate of Ground-Type Control Cabinet	94
Figure 101 3D Drawing of Console Plate of Ground-Type Control Cabinet	94
Figure 102 Drawing of Ground-Type Control Cabinet New Model Name Plate.	95
Figure 103 Drawing of Electrical Control Circuit of Front Safety Door1	97
Figure 104 Drawing of Electrical Control Circuit of Front Safety Door2	98
Figure 105 Drawing of Electrical Control Circuit of Front Safety Door3	99
Figure 106 Drawing of Electrical Control Circuit of Front Safety Door Relay Layout	100
Figure 107 Electrical Control System Assembled of Pressing Machine	100
Figure 108 Assembled Front Safety Door Control Box	101
Figure 109 Drawing of Front Safety Door Front Plate	102
Figure 110 Cable Length Drawing of Front Safety Door System	103
Figure 111 Ladder Diagram of Front Safety Door PLC System.	105
Figure 112 Overall View and Installation Component Location of the Front Safety Door on the SNS2-160 SEYI Pressing Machine.	106
Figure 113 Internship Training Project Code 1	110
Figure 114 Internship Training Project Code 2	111
Figure 115 Internship Training Project Code 3	112
Figure 116 Internship Training Project Code 4	113
Figure 117 Internship Training Project Code 5	114
Figure 118 Internship Training Project Code 6	115
Figure 119 Internship Training Project Code 7	116
Figure 120 Internship Training Project Code 8	117
Figure 121 Internship Training Project Code 9	118
Figure 122 Internship Training Project Code 10	119
Figure 123 Internship Training Project Code 11	120
Figure 124 Internship Training Project Code 12	121
Figure 125 Internship Training Project Code 13	122
Figure 126 Internship Training Project Code 14	123
Figure 127 Internship Training Project Code 15	124
Figure 128 Internship Training Project Code 16	125
Figure 129 Internship Training Project Code 17	126
Figure 130 Internship Training Project Code 18	127
Figure 131 Internship Training Project Code 19	128
Figure 132 Internship Training Project Code 20	129
Figure 133 Internship Training Project Code 21	130

 
List of Tables
Table 1 Ladder Diagram (LD) Data Condition Compare Function	68

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