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Fail‑Safe Motor Circuits: When Loss of Power Moves You Toward Safety

Fail‑Safe Motor Circuits: When Loss of Power Moves You Toward Safety

Part 1 of a 2-part series. A practical look at the failures that plague motor drive systems, even those that are rated to be fail-safe.


Using 2NO/2NC Contacts to Make Motor Starters More Fail‑Safe

Using 2NO/2NC Contacts to Make Motor Starters More Fail‑Safe

A practical look at how 2NO/2NC contactors and auxiliary contacts can clean up command, feedback, and fault logic in motor circuits.


Mitsubishi PLC to VFD Control: RS-485 Communication

Mitsubishi PLC to VFD Control: RS-485 Communication

This guide shows you how to set up RS-485 communication between the FX3U PLC and the FR-D700 inverter with the FX3U-485-BD. You can control speed and monitor the system using ladder logic.


Methods of Controlling Motor Speed With a VFD

Methods of Controlling Motor Speed With a VFD

Motor speed control can be a tricky process, due to the variety of options. In a VFD, speed can be controlled using fixed values, digital or analog signals, or communication networks.


Industry Insights: Understanding Hybrid Linear Motion

Industry Insights: Understanding Hybrid Linear Motion

Kyntronics’ mission is to combine servo control with hydraulic actuators to form hybrid motion control. Our engineering team posed a few questions in hopes of learning more about this technology.


DC Bus Fundamentals in Industrial Motor Drives

DC Bus Fundamentals in Industrial Motor Drives

Learn about precharge circuits, inrush current, and understand why VFD and servo drives may trip during power-up.


Synchronized Motion for Servos | Coordinated Axes

Synchronized Motion for Servos | Coordinated Axes

Coordinating motion in three or more axes is a difficult manual process. For more advanced gantry or articulated robots, this motion type solves the complex calculation of a set of related joints.


Electrical Cabinet Best Practices: A Field Guide for New Integrators

Electrical Cabinet Best Practices: A Field Guide for New Integrators

A practical, experience-driven guide to designing and wiring electrical cabinets for machine-tending robotic cells.


Synchronized Motion for Servos | Gearing Profile

Synchronized Motion for Servos | Gearing Profile

Synchronized motion has become an industry standard with robots, gantries, and pick and place automation. Follow along this three-part series as we discuss methods of synchronizing servo motors.


What Is an HVAC System and What Role Do Control Systems Play?

What Is an HVAC System and What Role Do Control Systems Play?

Managing the climate inside a building is critical for both people and infrastructure. Managing the climate is the job of HVAC control systems, but what’s inside an HVAC system, and how do they work?


Understanding Inputs and Outputs for Servo Drives

Understanding Inputs and Outputs for Servo Drives

Servo drives interact with hardware axes, but there are many ways to configure the motion. I/O signals allow connections of sensors and switches for functions like homing and setting travel limits.


Variable Frequency Drives (VFDs) In Motor Control

Variable Frequency Drives (VFDs) In Motor Control

What is the purpose of a variable frequency drive? How do they work? And why would we prefer using VFDs over basic motor starters for heavy loads?


Throwback: A Look at Electric Motors in the Early Days of Mining

Throwback: A Look at Electric Motors in the Early Days of Mining

Take a step back and check out a bit of the history of motors in the mining industry, from driving compressed air to generating various DC and AC voltages for mineral transportation.


Tutorial: Mitsubishi FX PLC With VFD and HMI Controls

Tutorial: Mitsubishi FX PLC With VFD and HMI Controls

In this article, we will learn how to set up a Mitsubishi FX PLC to drive a FR-D700 3-phase VFD, including detailed parameter settings, wiring, and HMI integration.


Introduction to H-Bridges for Industrial Motor Control

Introduction to H-Bridges for Industrial Motor Control

H-bridge circuits are commonly used to provide current switching capabilities to different electrical components in automated systems like motor control circuits, VFDs, and DC/AC current conversions.


Practical Comparison: Microcontroller vs. PLC for Arc Welding Control

Practical Comparison: Microcontroller vs. PLC for Arc Welding Control

Learn in this detailed analysis about the performance of industrial PLC and a prototyping microcontroller to perform stepper motor motion control for an arc welding automation project.


Understanding the Derivative Term in PID Control

Understanding the Derivative Term in PID Control

We know that PID stands for proportional, integral, and derivative, but have you ever seen exactly how the derivative term affects the final output signal in a motion control system?


Add a Dynamic Braking Resistor to a PowerFlex VFD

Add a Dynamic Braking Resistor to a PowerFlex VFD

Dynamic braking resistors stop motors more quickly by converting the rotational energy, but how do we select the correct one and configure a PowerFlex drive to utilize the resistor effectively?


Tricks of the Trade: Troubleshooting Industrial Control Cabinets

Tricks of the Trade: Troubleshooting Industrial Control Cabinets

When the blinking lights on automation devices stop blinking, the control cabinet is often the go-to troubleshooting culprit, but how do you make the best judgments for quickly locating the problem?


The Dirty Details of Electrical Power: Line/Load Reactors and Filters

The Dirty Details of Electrical Power: Line/Load Reactors and Filters

Filters and reactors can protect your electrical devices, but what is the difference between these two kinds of devices, and are they supposed to be installed before or after a VFD?