Designing a Ladder Diagram
By Terry Bartelt
In this animated object, learners examine the design of a ladder circuit that provides manual control to a water pumping system. Students also study modifications to the circuit as the complexity of the system increases.
Basic DC Electrical Motor Construction
Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.
Fundamentals of a DC Motor
Learners study the interaction between the conductors of the stator and the armature inside a DC motor, which causes the shaft to rotate. A short quiz completes the activity.
The DC Shunt Motor
Learners examine the operation of a DC Shunt motor and its characteristics. A quiz completes the activity.
In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.
A Timer-Off Application
Learners examine how a PLC Timer-Off instruction is used in the operation of an automotive paint booth.
Learners observe how to cascade PLC counters to extend the maximum count of one counter.
The Induction Motor Slip
In this animated object, learners examine how the rotation of an induction AC motor's armature slips behind the synchronous rotational speed of the stator's field to create magnetic fields. These fields interact and produce torque. A quiz completes the activity.
In this animated object, learners study how the internal parts of an AC synchronous motor interact with magnetic fields to cause rotation. A short quiz completes the activity.
The Elementary AC Generator
Learners view animations showing the operation of the internal parts of an AC generator. A short quiz completes the activity.
Hall-Effect Sensor Application
Learners view practical examples of how a Hall-effect sensor is used.
PLC Shift Registers
By Terry Bartelt, Tom Yapp
In this animated activity, learners study how a PLC performs a shift operation. The learning object covers data movement, data entry, PLC wiring, PLC shift register introductions, and programming for a paint can operation.
Learners study animation showing the operation of an AC wound-rotor motor with its external starting resistors. A short quiz completes the activity.
Converting Between Gray and Binary Codes
Learners follow steps to convert numbers from Gray code to binary code. They then view steps to change binary values to Gray code numbers.
DC Compound Motors
Learners study animation showing the operation of cumulative and differential DC compound motors. A short quiz completes the activity.
Learners study the method of cascading two or more PLC timers to extend their time capacity.
In this animated and interactive object, learners examine the interaction between a conductor that represents a motor armature and a magnetic field that represents a motor’s main field. This interaction causes the shaft to turn.
The Processor Scan Cycle
Learners examine the three steps of a processor scan cycle.
The Variable Reluctance Stepper Motor
Learners view colorful animations showing the operation of a VR stepper motor.
Analog Position Control
In this animated object, learners examine an analog closed-loop feedback system that uses potentiometers to control the position of a gear rack.
Armature Action of AC Motors
In this animated object, learners study the rotation of the magnetic stator field of an AC motor and how it interacts with the armature to cause rotation. A short quiz completes the activity.
Capacitive Proximity Sensors
In this animated object, learners examine the operation of a capacitive proximity sensor. A brief quiz completes the activity.
Overflow and Underflow for Signed Binary Numbers
By John Casey, Terry Bartelt, Terry Fleischman
Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.
Ladder Logic Schematic Symbol Flashcards
By John Rosz, Terry Fleischman
This interactive object is designed to help learners memorize the schematic symbols used in ladder logic diagrams. Learners quiz themselves using electronic flashcards.
Inductive Proximity Sensors
Learners examine the operation of an inductive proximity sensor in this animated object. A brief quiz completes the activity.