Control and
instrumentation systems are at the very heart of the technology-based world
in which we live. The functions that they perform are crucial to the
operation of products found in all aspects of everyday life. The automobiles
we drive, the domestic appliances in our homes and the automated machines in
the workplace – all involve the use of control and instrumentation systems.
As we grow increasingly reliant on technology to monitor and control
numerous production processes, we will depend to a greater extent than ever
before upon the services of maintenance/repair engineers and technicians,
fully skilled in the design and maintenance of control and instrumentation
systems. The LJ Create range of control and instrumentation training systems
effectively address the need to teach students the complexities of control
and instrumentation technology.
At the heart of every microcomputer system is a programmed
microprocessor unit (MPU), and this course teaches the all-important
fundamentals of 8-bit microprocessor programming.
The EB-6810 concentrates on the internal register structure of the
Motorola® 6800 series, a typical 8-bit microprocessor family whose
qualities are applicable to many of the other 8-bit MPUs in use
today. The EB-6810 lets students turn theory into reality with 12
hands-on experiments.
The seven-unit student textbook contains experiments, unit
examinations and two convenient appendices that examine instruction
set details and technical aspects of the Motorola® MC68HC11A8 chip.
Note: The EWS-3800 8 Bit Microprocessor
Trainer that is shown is no longer available. Please contact us for
other options.
MICROPROCESSOR INTERFACING AND
APPLICATIONS
The applications of microprocessors are almost
unlimited, and nearly every electromechanical device is a candidate
for computer control. Yet microprocessors must be interfaced to
memory and I/O devices to carry out these computing and applications
functions – and that's what students will learn with this course.
The EB-6820 textbook shows how to interface memory for program
storage and I/O devices for system communication. Students will
learn how to apply the microprocessor to real tasks through analog
conversion, signal conditioning, sensors, motors, control devices,
and control circuits.
The textbook contains 19 experiments that students perform witha
8-Bit Microprocessor Trainer. They'll see concepts come to life and
be well on their way to joining the microprocessor applications
revolution.
This course can be implemented with either individual loose parts or
pre-wired experiment boards. Choose based on your budget and time
constraints.
Note: The EWS-3800 8 Bit Microprocessor
Trainer that is shown is no longer available. Please contact us for
other options.
MICROCOMPUTER AND INDUSTRIAL APPLICATIONS {MCS-7820}
Comprehensive study program that
covers AVR microprocessor programming and microprocessor
interfacing
Hands-on construction of
mircoprocessor-controlled real world products
Prerequisites: Basic knowledge of
electronics; PC Fundamentals, A+ Certification or equivalent
knowledge
A microcontroller is made up of
millions of microscopic transistors squeezed onto a tiny chip of
silicon smaller than a 1/8” square. The transistors form
circuits that register, count, decode and conduct
arithmetic/logic operations and memory arrays to perform the
simple tasks that we take for granted. This Microcontrollers and
Industrial Applications course gives students a thorough
understanding of terminology and programming requirements that
are specific to AVR microprocessors and will apply to a wide
variety of other microprocessors/microcontroller.
Transducers and Instrumentation D1750
The Transducers and Instrumentation Trainer introduces
students to input sensors, output actuators, signal conditioning circuits
and display devices through a wide range of hands-on practical activities.
This self contained trainer has all the necessary power supplies, light
sources and compressed air supplies to carry out a wide range of hands on
experimental work. It is possible to build and test complete closed loop
control systems for rotary speed and position making the trainer ideal for
use in a control engineering teaching.
The trainer is supplied with a detailed curriculum manual that provides
background theory, practical activities and student assessment questions.
A student workbook is also provided, allowing students to create a
personalised record of their work together with practical results as they
work through the curriculum materials. Finally, an instructor’s guide is
provided offering solutions to all of the questions and practical activities
contained in the curriculum manual and student workbook.
The bench-mounted
trainer features the following devices and circuits:
Input Transducers:
Carbon track,
wirewound and precision rotary potentiometers
Slide
potentiometers
NTC thermistors
Type 'K'
thermocouples
I.C. temperature
sensor
Photoconductive
cell
Photovoltaic
cell
Phototransistor
PIN diode
Linear variable
differential transformer
Linear variable
capacitor
Strain gauge
Air-flow sensor
Air pressure
sensor
Slotted opto-sensor
Reflective opto-sensor
Inductive
Proximity Sensor
Hall Effect
sensor
Precision
servo-potentiometer
Tachogenerator
Humidity sensor
Dynamic
microphone
Ultrasonic
receiver
Output Devices:
Heater
Filament Lamp
DC Motor
Solenoid Air
Valve
Ultrasonic
transmitter
Buzzer
Loudspeaker
Relay
Solenoid
Counter/timer
unit with LED display
Bargraph voltage
indicator
Analog 10V
center-zero meter
Signal
Conditioning
Buffers
Inverters
Comparator with
switchable hysteresis
Amplifiers with
gain and offset control
Current
amplifier
Summing
amplifier
Differential
amplifier
Instrumentation
amplifiers
AC amplifier
Oscillator 40kHz
Filter 40kHz
Low-pass filter
with switchable time constant
Precision
full-wave rectifier
Sample and hold
circuit
Integrator with
switchable time-constant
Differentiator
with switchable time constant
V/F and F/V
converters
V/I and I/V
converters
Alarm oscillator
with switchable latching
Power amplifier
Electronic
switch
External Power
Supplies
-5V, +5V 1A
precision supply
-12V, +12V 1A
regulated supply
Pneumatic Supply
Internal
Pneumatic pump
The system also
features a shaft assembly that carries a d.c. motor, tachogenerator, slotted
and reflective opto-sensors for incremental and absolute position and a 360
degree precision potentiometer with indicator dial for closed-loop position
control experiments.
This package can
be used to introduce students to the monitoring and recording of control
system performance using a PC. The study module includes:
Virtual
instrument unit and software
Curriculum
manual
It is designed to
provide an extension to work carried out using our D1750 Transducers &
Instrumentation trainer. When used in conjunction with a student PC, the
curriculum manual is fully compatible with the ClassAct computer managed
learning system.
A student workbook
is also provided, allowing students to record basic theory and practical
results as they work through the curriculum manual. An instructor's guide
provides solutions to all of the questions and practical activities
contained in the curriculum manual.
The Virtual
Instrument allows a PC to act as the following test instruments:
Two digital
voltmeters
Dual trace
digital storage oscilloscope
Spectrum
analyzer
Signal generator
Data logger and
grapher
The laboratory
manual covers the following practical exercises:
This module
explores the way repetitive tasks are automated in industry. Students will
create programmes to control an electro-pneumatic production line system
that repeatedly sorts parts based on their dimensions. The ladder logic
programming language and the drive system mimics the programmable logic
controllers (PLCs) used in industry. All the programming that the students
complete on the system simulator can be tested on both the simulated
production line and the real hardware system.
Topic areas include:
Introduction to
Industrial Control and Manufacturing
Industrial
Controllers
Human Versus
Machine
Logic (AND, OR,
and NOT)
Truth Tables and
Step Logic
Latching
Actuators
Counting Parts
Timing Events
Measuring Part
Width
Problem Solving
– Sorting Parts
Activities
include:
Simulate custom
manufacturing by building models.
Construct ladder logic programs.
Investigate the
sequence of events for a PLC to activate an actuator.
Identify how to
read and construct truth tables.
Build a latching
program to control an actuator.
Complete a
ladder logic program for an airlock control system.
Use a counter in
a ladder logic program.
Use a timer to
delay lighting a lamp after a button is pressed.
Adapt a ladder
logic program to give indication of the width of a part on a conveyor.
Create a program
that will automatically sort parts according to their width.
Performance
objectives are included for our ClassAct or ClassCampus management systems
to generate a comprehensive portfolio of student reports.
Items supplied
with ST290 ETP include:
Industrial
Control Work-cell
12 Manufacturing
Systems (Gearbox) Kits
Curriculum CD
containing:
PLC control software with simulation
On-screen student learning material
On-screen instructor resources
Instructor Guide (printable)
This teaching set
provides a complete introductory course in the programming and
troubleshooting of industrial control applications.
The teaching set
includes an industrially relevant applications trainer, an industry-standard
programmable controller, a sequence switch module, a compressed air pump and
a curriculum manual.
Typical topic
areas include:
Introduction to
PLCs
ladder logic
programming
latches
counters
timers
shift registers
sequencers
When used in
conjunction with a student PC, the curriculum manual is fully compatible
with the ClassAct computer managed learning system. The curriculum manual is
divided into a series of chapters. Each covers a specific topic area and
provides background theory, practical activities and student assessment
questions. Each chapter is designed around a list of performance objectives.
These objectives are used by the ClassAct management system to generate a
student competency report. An instructor's manual is also included,
providing solutions to all of the questions and practical activities
contained in the curriculum manual.
This teaching system introduces students to programmable
controllers through a range of practical activities that are based on an
advanced pneumatic/electronic applications trainer. It provides the
following features:
Industry-standard programmable controller, remote
programming software and interface cable
Curriculum manual, student workbook and instructor’s
manual
The programmable controller provides a minimum of 12
inputs and 12 outputs and carries a comprehensive range of on-board
facilities, including timers, counters, and sequencer functions.
The controller is supplied complete with Windows-based
remote programming software, this is used to program, monitor, edit and
troubleshoot sequences for each of the practical exercises provided in the
curriculum manual. An interface cable that connects the computer to the
controller for downloading programs is also included.
The applications trainer incorporates many of the features
of a modern, automated production plant, including:
A selection of parts, some inside and some outside
specification
A parts dispenser for storage of parts prior to
processing
Two conveyor belts for movement of parts through the
controlled process
A pneumatic pick-and-place cylinder for placing parts
on, and removing them from the conveyors
An electrically-operated carriage for movement of the
pick-and-place cylinder between the conveyors
A pneumatically-activated gripper arm for transfer of
parts from one conveyor to the other
A range of pneumatic and opto-electronic sensors fitted
at various points along the conveyors
Green and red storage bins for separation of good and
reject parts
A comprehensive curriculum manual is also included. This
is compatible with a computer-based classroom management system and covers
the following topics:
This teaching set
introduces students to the fundamental principles of analog and digital
motor control, through a wide range of practical activities.
This comprehensive
teaching set includes the following items:
DC Motor Control
Module
Command
Potentiometer
PID Controller
4 mm Lead Set
Power Supply
The curriculum
supplied with the teaching set covers the following topics:
The Digital
Storage Oscilloscope
Transient and
Steady-State Response
Proportional
Speed Control
Proportional
Position Control
Second-Order
Response Parameters
Velocity and
Transient Velocity
Feedback
Controller
Characteristics
Integral Speed
Control
Proportional
Plus Integral Speed Control
Proportional
Plus Integral Plus Derivative Position Control
Instability
The curriculum
manual is fully compatible with the ClassAct computer-managed learning
system. Each chapter is designed around a list of performance objectives.
These objectives are used by the ClassAct management system to generate a
student competency report. A student workbook is also provided, allowing
students to record basic theory and practical results as they work through
the curriculum manual. An instructor’s guide provides solutions to all of
the questions and practical activities contained in the curriculum manual.
Typical activities
for the student include:
Describe the
Main Elements of a PID Controller
Investigate the
data capture features of a digital storage oscilloscope
Conduct simple
step, ramp and frequency response tests
Demonstrate
proportional speed control
Outline the
reasons for adding velocity feedback
Demonstrate the
change in following error when transient velocity feedback replaces
velocity feedback
Discuss the
effects of noise when subjected to derivative action
Demonstrate
various combinations of PID control
Demonstrate the
stabilizing effect of a proportional action on a system controlled with
integral action
This teaching set
introduces students to the fundamental principles of analog and digital
motor control, through a wide range of practical activities.
It includes the
following items:
DC Motor Control
Module
Command
Potentiometer
4 mm Lead Set
Power Supply
Virtual Control
Laboratory Teaching Package, comprising:
Analog and
Digital Motor Control Curriculum Manual
Instructor’s
Manual
Student
Workbook Paper Master
Control
Interface Module
PC Connection
Cable
Windows-based
Virtual Control Laboratory software
The Virtual
Control Laboratory Teaching Package that is supplied with the set includes
the Analog and Digital Motor Control Curriculum Manual, which allows
students to investigate, using a PC-based virtual analog/digital controller
with virtual instrumentation, the following areas of motor-control theory:
Time and
frequency response
Proportional
position control
Proportional
position control with velocity feedback
Stability
Analog and
digital interfacing
Feedback
principles
Second-order
system behavior
PID control
Computer and
digital control
This curriculum
manual is fully compatible with the ClassAct computer-managed learning
system. It is divided into a series of chapters, each covering a specific
topic area and providing background theory, practical activities and student
assessment questions. An Instructor’s guide provides solutions to all the
assessment questions.
Also included in
the Virtual Control Laboratory Teaching Package is the CLIO Control
Laboratory input/output Interface Module and PC-based VCL software. These
enable a PC to perform as an analog/digital controller, a virtual
instrumentation device (voltmeter, signal generator, and oscilloscope) and a
virtual plant simulator.
The following
experiments can be carried out using the VCL Control Package:
A
"best in the nation" program requires best in the world training equipment from VAL-TEC.
