Three Phase Wye Transformer Calculations
By James Bourassa
In this interactive object, learners follow steps to find phase voltages in a partial three-phase power distribution circuit.
Conductive Probe Sensors
By Terry Bartelt
In this animated object, learners study how conductive probe sensors are used to measure conductive liquid in a container.
Pressure Measurements in Inches of Water Column
Learners read how inches of water column is used as a unit of pressure measurement. Practical applications and a conversion formula to psi are included.
A Timer-Off Application
Learners examine how a PLC Timer-Off instruction is used in the operation of an automotive paint booth.
Pascal's Law and Hydraulics
Using the principle of Pascal's Law, the learner will interpret the gauge readings in a hydraulic system to determine when the system is operating properly under various load conditions and when there is a defect.
Single-Phase Motors: Introduction to Phase-Splitting
By Terry Bartelt, Terry Fleischman
Learners will understand how the interaction of the armature magnetic field and the rotating stator field cause the rotor of a single-phase AC motor to turn.
Determining Hydraulic Cylinder Size
Students read how to calculate the size of a hydraulic cylinder that is required for a particular application. Mathematical formulas are provided.
The Absolute Rotary Encoder
The learner will gain an understanding of robot motion control by comprehending the fundamentals of the encoder.
The Elementary AC Generator
Learners view animations showing the operation of the internal parts of an AC generator. A short quiz completes the activity.
Gear Ratio Concepts (Screencast)
In this screencast, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations.
Hydraulic Directional Control Valves
In this animated activity, learners examine the operation of hydraulic directional control valves and the internal components that divert the fluid.
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.
Ladder Circuit Labeling
Learners examine the labeling scheme used in ladder logic diagrams to identify components, wires, rungs, and rails. This activity includes self-check questions.
The PLC Examine-On Instruction
Learners examine an animated view of the operation and programming requirements of a PLC Examine-On instruction. A brief quiz completes the activity.
SLC-500 Data File Elements
Learners examine the elements of a data file memory of an Allen-Bradley SLC-500 programmable controller. A quiz completes the activity.
Types of Motion Instructions
The learner will identify the types of motion instructions used for programming a robot.
Designing a Cylinder Dwell Circuit
This animated lesson shows how a ladder circuit uses timer-on delays to cause an extrusion machine to operate.
Sizing Motor Overloads
By Terry Bartelt, Pat Jensen
Learners use the National Electrical Code to determine the size of a motor overload protection device.
Selector Switch Labeling
In this animated object, learners examine the method of interpreting the truth tables for two-position and three-position selector switches on ladder logic circuit diagrams.
The Current Limiting Circuit
Learners examine the circuitry in a DC variable speed drive that protects the rectifier diodes and motor windings from being damaged due to excessive current.
In this animated object, learners examine how PLC up/down-counters are used to control an automated parking lot gate.
Learners study the method of cascading two or more PLC timers to extend their time capacity.
Learners examine how air-to-open valves and air-to-close valves are used in different situations. A brief quiz completes the activity.
Reading a P&ID Loop
Learners follow steps for reading a P&ID diagram of a closed-loop circuit.