In this paper, Mitsubishi FX2 N series PLC, a micro programmable controller with high performance-price ratio, produced by Mitsubishi Company, is described, and the inversion, acceleration, deceleration and stepping control system of three-phase stepping motor is designed and realized. This system makes full use of all kinds of design knowledge and methods of programmable controller (PLC) in the training, which makes the system reliable and stable and expands its application scope. [Keywords:] PLC three-phase stepping motor system content.
Abstract 1
Chapter 1 Introduction to PLC 3
1.1development of PLC 5
Chapter 2 Basic knowledge of three-phase stepping motor 9
2. 1 topic background 9
2.2 introduction of three-phase stepping motor 10
2.2. 1 mechanical characteristics of three-phase asynchronous motor 14
2.2.2 Forward and reverse rotation control of three-phase asynchronous motor 16
2.2.3 speed regulation of three-phase asynchronous motor 18
Chapter III Three-phase Stepping Motor Control 19
3. 1 control requirements 19
3.2 How to realize the control requirements of 19
3.3 PLC hardware implementation 19
3.3. 1 input/output distribution 19
3.3.2 External wiring of I/O 20
3.4 the realization of PLC software 20
The fourth chapter overall system debugging 27
4. 1 Hardware installation 27
4.2 Software debugging 27
Chapter V Conclusion 28
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