Temperature Emissivity of Non-Blackbodies (Screencast)
By Terry Bartelt
Learners study the effect of reflected and transmitted energy on the measurement of emitted energy by a non-blackbody. A short quiz completes the activity.
Synchronous Speed of an AC Motor
In this animated and interactive object, learners study the synchronous rotational speed of the magnetic field created by the stator of an AC Motor.
Surface Finish
By Barbara Anderegg
Learners review surface finish basics and read how to calculate the roughness average.
Stop-Button Wiring to a PLC
Learners consider the correct type of pushbutton to use as a Stop button, the way the Stop button should be hard wired, and the PLC input instruction to use. This animated object includes a short quiz. It is recommended that learners review the learning object “The PLC Examine-Off Instruction” before beginning this object.
Standard Transmission Signals
Learners examine animations of the most common transmission signals used in automated systems, such as 4 mA to 20 mA, 3 psi to 15 psi, and 0 to 10 volts. A brief quiz completes the activity.
Standard Calibration Procedure
Learners follow steps to calibrate a transmitter used in process control applications. A brief quiz completes the activity.
Slow PLC Scan Time
In this animated object, learners study the problems that develop if the scan time of a PLC is too slow.
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.
Sizing Motor Overloads
By Terry Bartelt, Pat Jensen
Learners use the National Electrical Code to determine the size of a motor overload protection device.
Sinking/Sourcing Output Module
Learners examine the sourcing and sinking of conventional current at a PLC output module and the type of field device to which it is connected. This interactive learning object includes six quiz questions.
Sinking/Sourcing Input Modules
Learners examine the conventional current flow at a PLC input module, along with the field devices connected to it. This interactive object includes quiz questions and feedback.
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.
Single-Cycle Reciprocation Circuit
In this animated lesson, the learner examines how a ladder circuit causes the cylinder of a hydraulic circuit to make a single extension and retraction.
Simple Pneumatic Circuits
Learners examine the operation of five pneumatic animated circuits that use directional control valves, pilot lines, check valves, needle valves, and cylinders.
Signed Binary Numbers: 2's Complement
By John Casey, Terry Bartelt
Learners use this interactive and animated object to examine the use of binary numbers in a programmable logic controller. A brief quiz completes the activity.
Series Motors
The learner views animation showing how a DC motor is wired and its operational characteristics. A short quiz completes the activity.
Series Motor Runaway (Screencast)
Learners consider the changes inside a series motor that could cause it to break apart if the load was disconnected. A quiz completes the activity.
Sequencer Output Instruction for the SLC-500 PLC
By Craig Hemken
Learners examine the fundamental concepts of sequencer output instruction. A simulated example shows a sequencer in operation.
Sequence Valves
By Terry Bartelt, Stephen Schneider
Learners view an animation of a sequence valve in operation and examine the valve’s internal structure.
Sensor Wiring Configurations
In this animated object, learners examine how two- three- and four-wire sourcing and sinking sensors operate. A brief quiz completes the activity.
Sensor Hysteresis
In this animated object, learners examine the hysteresis function of a sensor.
Sensitivity Adjustments of a Capacitive Sensor
In this animated object, learners study the effects of making sensitivity adjustments to a capacitive sensor.
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.
RPM of AC Motors
Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.
Retro-Reflective Optical Sensors
Learners study the operation of the retro-reflective optical sensor, along with the guidelines that should be followed regarding the target size, reflector size, alignment, and the reflectivity of the target.