Close-up of a Class A GFCI outlet with test and reset buttons
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VFD Tripping GFCI Breaker: Lenze Drive Solutions & Fixes

Estimated reading time: 12 minutes Have you ever dealt with your VFD tripping a GFCI breaker unexpectedly? If so, you’re not alone. Variable frequency drives (VFDs) often trip GFCI devices, especially in wet areas or where codes mandate…
Smoke rising from a failed VFD with burn marks on internal components
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VFD Hardware Failure: Diagnosis and Replacement Guide

Estimated reading time: 9 minutes When a variable frequency drive (VFD) suffers a catastrophic hardware failure, it usually gives unmistakable warning signs. The user might hear a loud pop or bang. They might also see smoke or scorch marks.…
VFD screen indicating a Ground Fault alarm
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VFD Ground Fault & Short-Circuit Trips: Causes & Solutions

Estimated reading time: 11 minutes Ground fault and short-circuit trips in VFDs are common but often confusing events for drive users. In a VFD, these faults appear suddenly and can stop the motor immediately. This often leaves operators…
Technician verifying VFD parameter settings for motor current and overload
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VFD Overcurrent Fault & Motor Overload – Causes & Fixes

Estimated reading time: 19 minutes Variable Frequency Drives (VFDs) are essential for controlling motor speed and protecting equipment in industrial applications. However, VFD overcurrent faults and motor overload trips are common issues…
Simplified DC-bus diagram showing rectifier, capacitors, and inverter stages of a VFD
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VFD Overvoltage Faults During Deceleration: Causes & Fixes

Estimated reading time: 13 minutes Variable Frequency Drives (VFDs) are essential for controlling motor speed in industrial and commercial applications. However, VFD overvoltage faults are a common issue that often occurs when a motor is…
“Close-up of a large industrial cooling fan—proper airflow prevents VFD overheating”
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VFD Overheating & Cooling System Failures: Causes and Fixes

Estimated reading time: 13 minutes Variable Frequency Drives (VFDs) are vital for controlling motor speed and efficiency in industrial applications. However, VFD overheating is a common problem that can trigger fault alarms and even lead…
vfd-alter-motor-efficiency

How Will VFDs Alter Motor Efficiency (Pt. 2)

In the past article, we have established that VFDs are useful in applications where the load needs to be driven at various speed. We’ve also seen the ease of how VFDs can be integrated into existing control system. But how do you maximize…
How Will VFDs Alter Motor Efficiency

How Will VFDs Alter Motor Efficiency (Pt. 1)

When you’re operating motor based equipment, energy efficiency has always been a concern, especially when calls for a greener environment are getting louder. If you’ve yet to explore the option of adding a Variable Frequency Drive (VFD),…

Nema Cabinet Ratings: Protecting a VFD from environmental conditions

Nema cabinet ratings are designed to protect electrical components from environment-specific threatening conditions. Nema cabinet ratings are made for a range of different environmental conditions. There are as many Nema cabinet ratings available…

Difference between Eaton SVX9000 and SPX9000 adjustable speed drives

The difference between Eaton SVX9000 and SPX9000? Many Eaton customers call or email asking "what is the difference between Eaton SVX9000 and SPX9000?" There is only a small difference between the two drives other than a letter and the price.…
Cutler Hammer SVX9000 - An inside look

Cutler Hammer SVX9000 – An Overview Of Eaton’s General Purpose Drive

Cutler Hammer SVX9000 adjustable frequency drives are the compact, modular solution to variable speed applications. They enable a broad range of new application capabilities. A complete selection of option cards allows you to configure the drive…
VFD Overvoltage Fault - troubleshooting variable frequency drives

VFD Overvoltage Fault – troubleshooting variable frequency drives

A VFD overvoltage fault is fairly common with VFD regular usage. This fault may arise at different places and times for several reasons. The first step in resolving the problem is identifying when and where the fault occurs. A VFD overvoltage…