机电数控英语PDF电子书下载

Unit 1 DC Motors 1

Unit 2 Principles of Operation 8

Unit 3 Closed Loop Speed and Position Control of DC Motors 15

Unit 4 Programmable Logic Controller(PartⅠ) 29

Unit 5 Programmable Logic Controller(PartⅡ) 35

Unit 6 Programmable Logic Controller(PartⅢ) 50

Unit 7 AC Adjustable Speed Drives(ASD's)Ⅰ 60

Unit 8 AC Adjustable Speed Drives(ASD's)Ⅱ 68

Unit 9 AC Adjustable Speed Drives(ASD's)Ⅲ 77

Unit 10 PLCs 87

Unit 11 Hydraulic Basics 98

Unit 12 Hydraulic Systems 111

Unit 13 Pump and Motor Section 122

Unit 14 Fluid Power Systems 130