Precision Electric motor repair technician balancing a rotor
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Precision Electric Industrial Electronics & VFD Repair Experts

Why Reliable Precision Electric Industrial Electronics Matter However, when a production line stalls, downtime costs rise by the minute. Therefore, industrial leaders look for partners who can respond immediately, diagnose accurately, and…
Technician performing vfd repair on bench with scope and load motor
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VFD Repair Services – Cut Downtime & Save Costs

Estimated reading time: 4 minutes When a drive fails, every minute of downtime costs real money. This guide shows how VFD repair services restore production fast and protect your bottom line. Why VFD Repair Matters Low‑voltage variable‑frequency…
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…
AC Tech Drive Repair

AC Tech Drive Repair

Should I Repair Or Replace My Drive? Cost and Production Loss  AC Tech drive repair can be quicker and less expensive than drive replacement. AC Tech drive repair is most economical for: obsolete drives, out of stock drives, and, drives…

Electrical VFD

An electrical VFD (variable frequency drive) is also known as a variable speed drive, adjustable speed drive, electronic motor controller, or an inverter. Every electrical VFD is unique with its own component characteristics; so every electrical…
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How a VFD Works

How A VFD Works: A variable frequency drive is also known as a VFD, variable speed drive, adjustable speed drive, electronic motor controller, or an inverter.  How a VFD Works: Every VFD is unique with its own component characteristics so…

Motor Speed Controllers

There are three general types of motor speed controllers - AC motor speed controllers, DC Motor motor speed controllers, and Eddy Current motor speed controllers. Each type of motor speed controller can be divided into different variations.…

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…

Derate Three Phase VFD for Single Phase Power

There are many customers who want to derate their three phase Variable Frequency Drive (VFD) for single phase power. Some manufacturers offer products that are designed for single phase input, three phase output. The products that are available…

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…

FAQ :: VFDs | What Is A Variable Frequency Drive (VFD)?

Variable Frequency Drives (VFDs) are electronic devices used to control the speed of an Alternating Current Motor (AC Motor).  Variable Frequency Drives (VFDs) are also commonly known as adjustable frequency drives, adjustable speed drives,…