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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.


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.


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.


How Does a Circuit Breaker Work?

How Does a Circuit Breaker Work?

We depend on circuit breakers all the time, even when you have a day off or work from home. These overcurrent protection devices keep machines running safely, reducing the risk of fires and arcing.


What is a Variable Frequency Drive (VFD)?

What is a Variable Frequency Drive (VFD)?

When we need to change the speed of an industrial motor, whether to control a process or save energy costs, we turn to the variable frequency drive, better known simply as a VFD.


The Mechanic’s View of Control: Chain Drive Power Transmission

The Mechanic’s View of Control: Chain Drive Power Transmission

In the world of mechanical power transmission, gears, belts, and chains dominate the landscape, but what's so special about chain drives, and why would they be used in place of rubber belts?


There’s This Thing Called ‘Skin Effect’ in Wires: What Does it Mean to You?

There’s This Thing Called ‘Skin Effect’ in Wires: What Does it Mean to You?

Current flow in wires is often modeled with a perfectly circular cross-section, with the size of the wire being responsible for the maximum current. This is true, but there’s more to the story.


Understanding Delta-Wound Three-Phase Motors for Industrial Applications

Understanding Delta-Wound Three-Phase Motors for Industrial Applications

There are two types of winding designs inside three-phase industrial motors: Wye and Delta. Although the motors and connections look similar on the outside, this article discusses the internal construction for Delta wound motors.


Low-Code and No-Code Programming: Purpose and Strategy

Low-Code and No-Code Programming: Purpose and Strategy

Innovation has a single purpose: to create better solutions, meaning more efficient output with faster development and troubleshooting. It starts with the strategies used to program machines.


Deep Dive into PLC Sequential Function Chart (SFC) Programming

Deep Dive into PLC Sequential Function Chart (SFC) Programming

Sequential function charts (SFCs) are a great tool when processes require sequence control, but things can get complicated fast. Here are some ways to create better SFC programs and applications.


Optimizing Single-Run PLC Bits and Tasks for Startup Processes

Optimizing Single-Run PLC Bits and Tasks for Startup Processes

Programmable Logic Controllers (PLCs) are designed as an endlessly-looping program, examining all lines of code as rapidly as possible. Following are a few critical tips for when programmers only need to run a series of single operations at startup.


Wood You Look at That? The Incredible Automation Controlling Lumber Mills

Wood You Look at That? The Incredible Automation Controlling Lumber Mills

From forest to felling, logging road to mill, finished lumber’s adventure on its way to market is filled with control and automation. Learn about the process from start to finish and how lumber mills ensure the world has access to high-quality lumber thanks to control technology.


System Dynamic and Frequency Response Analysis

System Dynamic and Frequency Response Analysis

Understanding the building blocks of s-domain analysis and magnitude response theory can go a long way in helping engineers predict how and why some system design choices are made over others.


What Does ‘Explosion Proof’ Mean, and Who Should Care?

What Does ‘Explosion Proof’ Mean, and Who Should Care?

Some workplaces are more dangerous than others, not because of the practices, but rather the products. Where do explosions occur, and what practices exist to reduce such risk for equipment and workforce?


Creating a Low-Cost OpenPLC Pulse Timer Function Block HMI with an M5Stack Core

Creating a Low-Cost OpenPLC Pulse Timer Function Block HMI with an M5Stack Core

Triggering a machine by an external event often requires a pulse timer for OpenPLC Pulse Timer control. Here’s a brief tutorial on how an M5Stack Core can offer a simple, effective low-cost Arduino OpenPLC HMI solution.


Beginner’s Guide to Programmable Encoders

Beginner’s Guide to Programmable Encoders

Programmable encoders provide engineers real flexibility to adjust process parameters. From operating theory to programming methods, here’s everything you need to know to begin leveraging these handy devices.


What You Need to Know: Soft Starters for Industrial Motors

What You Need to Know: Soft Starters for Industrial Motors

Driving motors is one of the most fundamental automation tasks, but understanding and selecting the proper motor soft starter for your application may require more investigation than you thought.


Understanding the Automation Lingo: PLC, PAC, RTU, DCS, and SCADA

Understanding the Automation Lingo: PLC, PAC, RTU, DCS, and SCADA

What are these terms, PLC, PAC, RTU, DCS, SCADA? Why are they so important to industrial robotics and automation? Explore how each different piece functions to build a comprehensive automated system.