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Too Much Current! Breaker Curves and Overload Trip Classes

Too Much Current! Breaker Curves and Overload Trip Classes

We know what a circuit breaker is meant to do: stop the flow of electricity in case of a fault or failure. But just like fuses, breakers and overloads respond differently depending on the load.


What is a Servo Motor?

What is a Servo Motor?

Servo motors are common in all kinds of motion control applications for various industries, but what are these devices, and what makes them different from standard AC or DC motors?


Using Virtualization Technology to Enhance Industrial Control System

Using Virtualization Technology to Enhance Industrial Control System

Automated control systems incorporate virtualization technology to reduce physical hardware, automatically minimizing the cost of IT/OT equipment, installations, and maintenance efforts.


Turn a Raspberry Pi Into a PLC Using OpenPLC

Turn a Raspberry Pi Into a PLC Using OpenPLC

Using a Raspberry Pi and the OpenPLC software platform, create a simple PLC that can be programmed in ladder diagrams with remote access and I/O monitoring dashboards.


Back to the Basics: Pressure Units and Measurements

Back to the Basics: Pressure Units and Measurements

What is pressure? Everybody knows about this important quantity, but how do you define it? How do you measure it? Where does it come from? In this article, we’ll learn about the basics of pressure.


How to Wire Motor Starters and Contactors

How to Wire Motor Starters and Contactors

This article investigates the basic components and wiring conventions for common three-phase motor starter configurations, including direct online, reversing, and star-delta.


UDW Data Calculations, Post Disturbance Review, UI, and Backup | Part 2

UDW Data Calculations, Post Disturbance Review, UI, and Backup | Part 2

Effectively managing data includes processing it after initial collection: performing calculations, reviewing for anomalies, and displaying the data for easier actionable insights.


What is a Safety PLC?

What is a Safety PLC?

This article investigates the basic qualities that make up a safety PLC, what distinguishes a safety PLC from a standard model, and the reasons for which a safety PLC may be critical.


Understanding RMS and True RMS for Meters and Mechanical Measurements

Understanding RMS and True RMS for Meters and Mechanical Measurements

Electrical and mechanical measurements are often labeled with "RMS" and "True RMS." Aside from the simple math definitions we learned in electronics class, why is this distinction actually important?


Relays, Relays, and More Relays: 7 Kinds of Industrial Relays

Relays, Relays, and More Relays: 7 Kinds of Industrial Relays

Have you ever heard of a relay? Of course you have. There are many different kinds, plus hundreds of different trade lingo names. What are some of the most common, and how do we use them?


A Better Fit: Comparing Electrical Systems vs. Pneumatic Systems

A Better Fit: Comparing Electrical Systems vs. Pneumatic Systems

Knowing what kind of control system to use: that’s a question that must be answered before setting up the factory floor. Why would someone choose pneumatic over electrical controls?


Data Model and Functionality of Utility Data Warehouse | UDW Part 1

Data Model and Functionality of Utility Data Warehouse | UDW Part 1

Storing data long-term for recording and reporting purposes is the job of the utility data warehouse, quite different from data-collection processes that optimize systems and predict failures.


How Do You ‘Megger’ a Motor? Understanding Motor Insulation Resistance

How Do You ‘Megger’ a Motor? Understanding Motor Insulation Resistance

Within motors, two very different types of resistance are evident. The resistance of the windings is measured with a normal multimeter. But what is insulation resistance, and how is it measured?


Electrical Drawings, Schematics, and Wiring Diagrams: How to Read Them

Electrical Drawings, Schematics, and Wiring Diagrams: How to Read Them

In order to trace control system problems to the core, the ability to read and interpret various resources, from facility-level diagrams to machine-level wiring layouts, is critical.


How to Convert Numbers: Binary, Decimal, and Hex Systems

How to Convert Numbers: Binary, Decimal, and Hex Systems

Converting different numbering systems is quite common in PLCs and structured text codes. Why? Because people read decimals. Computers read binary. Processors read sets of bits. Not so simple.


What is a Soft Start? Reducing Start-up Load on Motor Circuits

What is a Soft Start? Reducing Start-up Load on Motor Circuits

Controlling the startup of a motor not only reduces the wear on the motor, but eases the burden on the electrical supply, reducing infrastructure demands and the running cost of industrial loads.


What is a Fuse? The Skinny On Overcurrent Protection

What is a Fuse? The Skinny On Overcurrent Protection

Protecting equipment and personnel from overcurrent dangers, like sparks and fires, is the primary job of the humble fuse, one of the most basic, yet critical of all safety devices.


Data Flow Tutorial With Mage.ai | Part 6: Refined Data Presentation

Data Flow Tutorial With Mage.ai | Part 6: Refined Data Presentation

We conclude the data flow project with the step of developing a business intelligence dashboard to present machine data, at a reliable schedule, to a leadership or maintenance team.


Star-Delta Wiring for Reduced Voltage Starting of 3-Phase Motors

Star-Delta Wiring for Reduced Voltage Starting of 3-Phase Motors

Digital controls like VFDs and soft starts have advantages by elongating start time, but simple strategies for starting motors with a reduced current draw, like star-delta (or wye-delta) are common.


PLC Naming Conventions: How Should I Write My Tag Labels?

PLC Naming Conventions: How Should I Write My Tag Labels?

It’s important to consider your PLC tag naming convention when using different styles. Learn when and why you might even use more than one, depending on the circumstances and scope of your project.