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AC Drives

AC Inverter Drives and Systems

ACDC Drives stock a large range of AC Inverter drives to cover the vast spectrum of individual requirements. AC Inverter drives are used in many different applications, they vary considerably in complexity. The VFD's (variable frequency drives) are a powerful tool for energy saving, a cost effective alternative to running the AC motor D.O.L (Direct on line). AC Motor Control has transformed the way we operate our AC motors, Inverters increase the motor life, increase service intervals, whilst cutting down energy consumption. Torque can also be limited with an AC inverter which can help protect equipment by allowing it to operate within manufacturer tolerances, therefore extending its life

We stock Parker, TECDrive and Yaskawa Inverters, and can offer technical support for all of the brands offered. We only stock the drives we personally use in the system solutions and the service side of our company. 

If you require assistance with retro fitting a newer AC Inverter drive to replace an older obsolete model, please call us on 01905 887 667 and we will happily help you to select a compatible equivalent. We also sell Accessories and add on Modules such as I/O communication cards, encoder cards and Dynamic Brake Resistors. 

TEC Drive

TECDrive Logo

TECDrive AC inverters are a recent addition to the growing TEC range. Offering simple setup, along with multiple built in macros, they offer great value.


Lenze Logo

The Lenze range of AC inverters are frequently used on conyeyor systems or production lines. They have multiple safety features, such as 'Safe Torque Off' modules and interlocking.


Parker Logo

Parker offer industry leading AC Inverters. With high end features such as Sensorless Vector and Microstepping included as standard even in the AC10 range, making for a feature rich and cost effective range.


Yaskawa Logo

Yaskawa are the largest manufacturer of AC inverters in the world. They offer class leading reliability and superb features, all in a compact package.

What Advantages do AC Inverters Offer?

AC inverters offer many benefits. Most motors in industrial applications are specced to allow for headroom, meaning they are oversized. These motors very rarely run at full load, so waste energy can be significant. Using an Inverter in such systems, can lead to large cost savings, either when retro fitting a drive to the exisitng system, or by not having to oversize the motor and system in the first place when designing new systems.

Inverters also allow for the control of starting currents, reducing the initial 'shock' on your motor, and increasing the longevity of the motor. Acceleration and decceleration can also be controlled, reducing bearing wear, and increasing the intervals between belt replacement when used with pulleys. Torque can also be limited, preventing unwanted damage to machinery.

How Much Could I Save?

This infographic has been designed to give a quick idea of the savings that can be made when fitting an AC Inverter to a fan or pump application.

Click on the Image to view it full screen:

Infographic Energy Savings

Inverter System

Encoders - Closed Loop

A motor encoder is a rotary encoder mounted to an electric motor that provides closed loop feedback signals by tracking the speed and/or position of a motor shaft.

Encoders turn mechanical motion into an electrical signal that is used by the control system to monitor specific parameters of the application and make adjustments if necessary to maintain the machine operating as desired. The parameters monitored are determined by the type of application and can include speed, distance, RPM, position among others. Applications that utilize encoders or other sensors to control specific parameters are often referred to as closed-loop feedback or closed-loop control systems.

Encoder card1
Encoder card2
Encoder card3
Encoder card4

Why Buy from ACDC Drives?

We keep all inverters up to 55kW  on the shelf, so if you need it next day it is no problem! We all know that in the modern workplace often things are needed as fast as possible. That is where we can help. We can also get enigineers out to site, to carry out surveys, or to install and commission drives on existing or new applications. Call our sales team today by phone on 01905 887 667.

Contact Us

Weekdays 8AM to 5PM


Unit 28 North Bank,
Berryhill Industrial Estate,
Droitwich Spa, WR9 9AU


01905 887 667


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