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Control Concepts

Why Does My Motor Keep Stalling Under Load?

Yaskawa GA800 VFD installed on an industrial extruder after troubleshooting a recurring motor-stall condition

A motor that runs normally with little or no load but stalls when the load increases doesn’t automatically mean the drive has failed. Here’s how to narrow down the real cause.

Why Is My Servo Motor Jittering or Not Moving?

Industrial servo motor with rear cover removed and feedback wiring connected for diagnostic testing.

A jittering, drifting, buzzing, or unresponsive servo motor does not always mean the drive or motor has failed. Learn how to identify common servo problems and why checking the feedback cables, connectors, and fault codes first could prevent an unnecessary replacement.

Soft Starter or VFD: Which One Do You Actually Need?

Technician troubleshooting an industrial motor control cabinet for a soft starter or VFD application

Soft starter or VFD? The answer usually comes down to one simple question: do you need speed control while the motor is running? This article breaks down what each one does, where each one fits best, and how to avoid paying for the wrong capability.

How to Plan a PLC Upgrade Without Unnecessary Downtime

Technician reviewing an industrial control cabinet during a PLC upgrade

A PLC upgrade can go smoothly, or it can turn into a production problem fast. This article walks through how to plan the project more carefully, reduce unnecessary downtime, and avoid the surprises that usually extend cutover windows.

What Causes Repeated Drive Failures on the Same Line?

Technician inspecting industrial control panel on a production line experiencing repeated drive failures

You’ve fixed it before. The line came back up, everyone moved on, and then it happened again. Repeated drive failures on the same production line almost never come down to the drive itself. They come down to a condition that’s still there. This guide covers what those conditions usually are, what the pattern is trying to tell you, and what to check before another drive goes into the same situation.

7 Causes of AC Drive Failure in Industrial Facilities

Technician inspecting an industrial electrical panel to diagnose AC drive failure causes

Most AC drive failures aren’t random. They trace back to a handful of familiar causes, and many of them leave warning signs before the drive completely goes down. This guide covers the 7 most common causes of AC drive failure in industrial facilities, what each one looks like in practice, and what to check before assuming the drive itself is the whole problem. Because often, it isn’t.

Repair or Replace a Failed VFD? How to Decide

Technician inspecting AC drives inside an industrial control cabinet during troubleshooting

When a VFD fails, the pressure to get the line back up is immediate. But making the wrong call, repairing what should be replaced or replacing what could be repaired, costs time and money. Learn what actually determines whether repair or replacement is the smarter move for your situation.