Book Image

Industrial Automation from Scratch

By : Olushola Akande
Book Image

Industrial Automation from Scratch

By: Olushola Akande

Overview of this book

Industrial automation has become a popular solution for various industries looking to reduce manual labor inputs and costs by automating processes. This book helps you discover the abilities necessary for excelling in this field. The book starts with the basics of industrial automation before progressing to the application of switches, sensors, actuators, and motors, and a direct on-line (DOL) starter and its components, such as circuit breakers, contactors, and overload relay. Next, you'll explore VFDs, their parameter settings, and how they can be wired and programmed for induction motor control. As you advance, you'll learn the wiring and programming of major industrial automation tools – PLCs, HMIs, and SCADA. You’ll also get to grips with process control and measurements (temperature, pressure, level, and flow), along with analog signal processing with hands-on experience in connecting a 4–20 mA transmitter to a PLC. The concluding chapters will help you grasp various industrial network protocols such as FOUNDATION Fieldbus, Modbus, PROFIBUS, PROFINET, and HART, as well as emerging trends in manufacturing (Industry 4.0) and its empowering technologies (such as IoT, AI, and robotics). By the end of this book, you’ll have gained a practical understanding of industrial automation concepts for machine automation and control.
Table of Contents (21 chapters)
1
Part 1: Learning the Concepts and Skills Required to Get Started
8
Part 2: Understanding PLC, HMI, and SCADA
14
Part 3: Process Control, Industrial Network, and Smart Factory

Understanding the stepper motor and servo motor

A stepper motor can be referred to as a type of brushless DC motor that divides its full rotation into a number of equal steps and rotates in steps. They have multiple coils organized in phases. The motor will rotate each step at a time as each phase are being energized in sequence.

Basically, stepper motor are of two types:

  • Unipolar
  • Bipolar

Let’s check them in detail in the following sections.

Unipolar stepper motor

This usually has 6 wires or sometimes 5 wires as shown in following diagram. It has one winding with a center tap per phase:

Figure 4.20 – Unipolar stepper motor

Let’s have a look at Bipolar stepper motor.

Bipolar stepper motor

This usually have 4 wires. It also has one winding per phase but does not have a center tap. They have more torque and are more efficient than unipolar stepper motor:

Figure 4.21 – Bipolar stepper motor

Let’s now learn how to drive a stepper motor.

Driving...