Quotation 1

1. Overview 2

1. 1 development status of automatic doors at home and abroad II

1.2 Content of this study 2

1.3 the purpose and significance of this study 3

2. Overall scheme design of automatic door control system 4

2. 1 functional requirement analysis of automatic door 4

2.2 Basic steps of system design

2.3 Determination of technical parameters of automatic doors 6

2.4 Mechanical transmission mechanism design of automatic door 6

3. Design of automatic door hardware system 8

3. 1 structural design of control system 8

3.2 Selection of Programmable Controller (PLC) 8

Overview of PLC 8

3.2.2 Selection of Programmable Controller (PLC) 9

3.3 Selection of driving device 1 1

3.4 Selection of frequency converter 12

3.4. 1 variable frequency driver 12

3.4.2 Selection of frequency converter 12

3.4.3 Parameter setting of frequency converter 13

3.5 Selection of Inductive Switch 15

3.6 automatic door system I/O allocation table 15

3.7 Electrical wiring of control system 16

4. Software design of automatic door control system 17

4. 1 PLC ladder diagram overview 17

4.2 ladder diagram programming environment 17

4.3 program flow chart 19

4.4 Ladder Diagram Design 20

5. System debugging 2 1

5. 1 ladder diagram program download 2 1

5.2 Program Debugging Record and Result Analysis 22

Conclusion 23

Reference 24

Appendix I Hardware Connection Circuit of Automatic Door 25

Appendix II I/O Address Distribution Diagram of PLC 26

Appendix Ⅲ Automatic Door Ladder Diagram Program 27

Thanks 33