In this program, you will be introduced to programmable logic controllers (PLCs) and how they are used to implement electrical and motor control circuits in industrial applications. This module explains how a PLC operates and the important relationship between electromechanical and PLC ladder diagrams.
The program also covers the important topic of I/O field device addressing and how field devices are known inside the PLC. Discrete input and output interfaces are discussed as well as how to install them and the actual PLC unit.
Thoroughly explained are the discrete programming instructions that are used in the implementation of electromechanical control using a PLC, which are the basic relay instructions. The operation of the basic on-delay and off-delay types of timers and how to program them in a PLC application is also addressed as well as the special considerations that you must take when implementing timer control programming.
You are presented with the implementation of PLC control from electromechanical control. The examples involve the control of motors as well as the implementation of Forward/Reverse control using a Fwd/Rev motor starter.
Explanations on how to go about to assign the input and output addresses that will be used in the PLC are presented. Also covered are the troubleshooting of PLC inputs and outputs as well as the CPU and how to implement basic PLC preventive maintenance.
Understanding and Applying PLCs in Electrical Controls
Explore from programming and I/O scanning to implementation of discrete PLC electrical and motor control applications. Cover the number systems used with PLCs, I/O addressing and field device references, PLC memory system, discrete input and output interfaces and their connections to field devices, programming languages and instructions used in discrete control applications, PLC control implementation, and troubleshooting of the CPU and discrete I/O.
Lessons in this program:
- Principles of Operation
- Ladder Diagrams and the PLC
- Binary Concept and Number Systems
- I/O Addressing and Structure
- I/O System
- Discrete Inputs
- Installation of Input Modules
- Discrete Outputs
- Installation of Output Modules
- Installing the PLC
- PLC Instructions—Basic Relay
- Contact Instructions—Examine ON-Examine OFF
- Output Coil Instructions (Real-Internal-Latch/Unlatch)
- Programming a Normally Closed Input Device
- Timer Basics
- On-Delay and Off-Delay Timers
- Special Timer Example
- Motor Control Circuit Implementation
- Reversing Motor Control (Fwd/Rev)
- Troubleshooting PLC Inputs
- Troubleshooting PLC Outputs
- Troubleshooting the CPU
- PLC Preventive Maintenance
PLCs—What Everyone Needs to Know
- Understanding PLCs will make your job easier.
- Is your PLC system safely and properly installed—learn which sections of the control circuit must be left hardwired for safety reasons.
- Now you will know why PLC use different number systems.
- Understand PLC ladder symbology and power flow: continuity & logic.
- Implement motor circuits (2-wire & 3-wire control), wiring and interfacing to magnetic starters, reversing motor control and interlocking.
- Learn the PLC software instructions to convert an electromechanical (hardwired) system to a PLC-based system.
- Know how to avoid possible timer control problems.
- Trap the right timer contact in an electromechanical circuit during a PLC implementation.
- If you're using PLCs to control motors, make sure you're implementing low-voltage protection—we'll show you how and help you avoid potential injury to personnel and equipment.
- One small wiring mistake during troubleshooting will make things worse—we'll show you the right way to do it step-by-step.
- Follow our step-by-step method of converting a hardwired relay system to a PLC-based system—do it quickly and do it right!
- Troubleshoot the complete discrete I/O system—see it graphically—from power line problems to wiring connections to I/O modules to the detection of a bad field device.
- Quickly pinpoint the problem is with the controller, the wiring, or a field device.
CD-Rom Interactive Option
- One CD-Rom Disk with 23 Lessons
- Includes Downloadable Comprehensive Handbook
- Includes built-in Certificate of Completion generation
- Includes built-in Final Exam validation proof document
- Built-in Interactive Review Questions after each lesson
- Built-in Interactive Final Exam
- Review Questions and Final Exam with Automatic Reinforcement Mode (ARM)
to enhance learning experience
- Interactive Multimedia presentation
- One DVD with Two Parts:
Part 1 (31:33 min)
Part 2 (33:20 min)
- Includes comprehensive Video Handbook and Guide with Review Questions and Answers.
- Includes Certificate of Completion. Electronic version allows for customization of certificate for student.
Introduction to Motor Control Operations and Protection
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To view the DVD demo Click here.
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