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…
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…
Lenze Americas VFD Drives

Lenze Americas VFD Drives

Lenze Americas VFD Drives are high-performance products used to optimize new and existing machinery for production. Lenze is one of the leading drive and automation specialists in the field of machine engineering. Rapidly changing times present…
Eaton VFD System Drives

Eaton VFD System Drives

Eaton VFD system drives can reduce energy consumption from 10 to 50 percent by reducing the speed of an electric motor to its needed output speed. With reduced energy consumption, utility expenses are reduced and within a few months, the investment…

What Is A VFD?

VFD is an abbreviation that stands for Variable Frequency Drive. VFD's are also known as variable frequency drives, variable speed drives, adjustable speed drives, electronic motor controllers, or inverters. VFD's are solid state motor control…
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Eaton HVAC Frequency Drives

Eaton HVAC frequency drives were specifically engineered for HVAC, pump and fluid control applications. The power unit makes use of the most sophisticated semiconductor technology and a highly modular construction that can be flexibly adapted…
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Eaton power board failure

This article has been updated and re-posted at https://www.precision-elec.com/eaton-power-board-failure-2-2/ Eaton power board failure is a common problem among Eaton drive users. The main reason most Eaton drives fail is due to power board…

MC Series Drives

  The AC Tech MC Series drive is built in rugged steel enclosures that are known to last many years in production. The 16 character LCD display on the MC Series drive keypad allows for easy set up and operation. MC Series drive available…

SMV Drive

We've Been Servicing the Industrial World Since 1983. Minimize Your Downtime. Maximize Your Productivity. Call Toll Free: 1.877.625.2402 The new Lenze-AC Tech SMVector range of inverter drives offer sophisticated auto-tuning, fast dynamic…

Inverter Duty Motors VS General Purpose Motors

General purpose AC motors have been around for many years. An inverter-duty motor is a much newer concept that became necessary as motors began to be driven by variable frequency drives. An inverter-duty motor can withstand the higher voltage…

SMV Parameter Setup & High Frequency Output

Setting up SMV Drive Parameters 1. Enter the “edit parameter mode” by: a. With the drive powered up the display should read “Stop”. b.  Press the M key once.  The drive will flash “PASS” then display “0000” c. …