Discover the latest inverter drives for 2025 – compare new models from Siemens, ABB, Danfoss & Delta. Features, specs & expert picks for every application.
VFD Overcurrent, Overvoltage & Ground Faults Explained – Causes and Prevention Variable Frequency Drives (VFDs) are highly reliable when installed and configured correctly. However, three of the most common faults users encounter are overcurrent, overvoltage, and ground fault trips. These…
How to Select a VFD for Constant Torque vs Variable Torque Loads (With Examples) Selecting the correct Variable Frequency Drive (VFD) is not just about matching motor power. One of the most critical — and most commonly misunderstood — factors…
VFD Cooling & Ventilation Requirements: Panel Layout Best Practices Explained Overheating is one of the most common causes of premature VFD failure — and it’s almost always caused by poor enclosure design, restricted airflow, or incorrect drive selection for the…
VFD Safety Explained: STO, Safe Torque Off, and Functional Safety Basics VFD safety is often misunderstood. Many installers assume that stopping a motor via a drive command is “safe” — but in many applications, this is not enough. Modern inverter…
Using VFDs With Generators and Weak Power Supplies: What You Must Know Running a VFD from a generator or weak electrical supply introduces challenges that don’t exist on a stable grid connection. If these issues aren’t understood and planned for,…
VFD Maintenance Checklist: What to Inspect, Replace, and Monitor Over Time VFDs are reliable when installed and maintained correctly — but like all power electronics, they degrade over time. Most unexpected VFD failures are not sudden. They are the result…
What Happens When You Oversize or Undersize a VFD? Real-World Effects Explained Choosing the wrong VFD size is one of the fastest ways to cause poor performance, nuisance trips, wasted energy, or early drive failure. Many people assume “bigger is…
VFD Compliance in the UK & EU: EMC, CE, UKCA, and Machinery Directive Explained Installing a VFD isn’t just a technical exercise — it’s a legal one. In the UK and EU, inverter drives fall under multiple regulations covering EMC,…
How to Choose the Correct VFD Control Mode: V/Hz vs Sensorless Vector vs Closed Loop One of the most common reasons a VFD performs poorly — or fails prematurely — is the wrong control mode being selected. Modern inverter drives…
