Volts per Hertz Ratio in AC Drives
By Terry Bartelt
Learners view an animated explanation of why an adjustment of the output voltage by an AC drive is required to maintain a constant torque as the frequency is varied.
One-Shot PLC Operation
Learners view an animation showing the one-shot operation of a programmable logic controller.
Forward/Reverse Ladder Circuits
In this animated object, learners study the operation of a ladder circuit that controls the rotational direction of a DC motor.
PLC Sinking Input Modules
In this animated object, learners examine how to wire field devices to a PLC sinking input module.
Hydraulic System Pressure
In this animated activity, learners observe how pressure values throughout a hydraulic system are developed based on pump pressure and the size of the load.
The PLC Examine-Off Instruction
In this animated object, learners examine the operation and programming requirements of a PLC Examine-Off instruction. A brief quiz completes the activity.
Dynamic Braking Circuits
In this animated activity, learners examine the operation of a dynamic braking circuit used to quickly stop a motor.
Testing a Hydraulic Pump
By Terry Bartelt, Stephen Schneider
Learners follow an animated test procedure to determine if the parts of a hydraulic pump are worn.
Resistance Temperature Detector (RTD)
Learners study animations to see the connection between temperature and resistance as they examine the operation of an RTD. A table is used to convert resistance readings to the corresponding temperatures. A brief quiz completes the activity.
PLC Sourcing Input Modules
In this interactive and animated object, learners study how to wire field devices to a PLC sourcing input module. 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.
On-Off Control of a Feedback System
Learners examine the operation of the on-off control mode using a home heating example. A short quiz completes the activity.
The Spring-and-Diaphragm Actuator
Learners study an animation of a spring-and diaphragm actuator controlling the opening of a flow valve.
Reaction Curve Tuning Example
Learners perform the steps required for the Ziegler-Nichols Reaction Curve Tuning Method. The process identification procedure is performed, calculations are made, and the proper PID values are programmed into the controller.
Incremental Optical Encoders
Learners study the operation and characteristics of an incremental optical encoder used in automated manufacturing applications. A brief quiz completes the activity.
In this animated object, learners examine the basic types of limit switches and how they are used.
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.
In this animated object, learners examine how various types of positive and non-positive displacement hydraulic pumps work.
Learners view an animation of a sequence valve in operation and examine the valve’s internal structure.
Pneumatic Air Leaks
In this animated object, learners examine the causes of air leaks and read how to repair them. The object includes audio.
Motor Control Circuits
Learners examine an electric motor control circuit that uses a motor starter module. This activity has audio content.
Capacitive Proximity Sensors
In this animated object, learners examine the operation of a capacitive proximity sensor. A brief quiz completes the activity.
Industrial Control Classifications
In this animated object, learners examine automated manufacturing systems classified as motion control, batch process control, and continuous process control.
Types of Pneumatic Compressors
Learners examine the operation of positive and non-positive displacement compressors used in pneumatic systems.
Ziegler-Nichols Continuous Cycling Tuning Method
In this animated and interactive object, learners follow steps to perform the process identification procedure for the Ziegler-Nichols Continuous Cycling Tuning Method. A short quiz completes the activity.