Joliet Technologies custom packages, integrates and engineers AC Variable Frequency Drives (VFD), DC Variable Speed Drives (VSD) and AC Drive Controllers using top of the line manufacturers, like ABB, Emerson-Control Techniques, Siemens and Saftronics (Fincor). Our custom drive packages are built to your specifications for your application. We specialize in large horsepower drive systems (500Hp and above). Also known as DC Drives, AC Drives, SCR Drives (Silicon Controlled Rectifier Drive), Variable Frequency Drives, Variable Speed Drives, Adjustable Speed Drives, Electric Motor Drives, Electronic Motor Drives, AC Motor Controllers, AC Inverters and a few other names. 

What is a VFD (Variable Frequency Drive)?

You can divide the world of electronic motor drives into two categories: AC and DC. A motor drive controls the speed, torque, direction and resulting horsepower of a motor. A DC drive typically controls a shunt wound DC motor, which has separate armature and field circuits. AC drives control AC induction motors, and-like their DC counterparts-control speed, torque, and horsepower.

Which Drive is Right for your Application?

The AC Variable Frequency Drive market is becoming huge and this can be contributed to the great advances in highly reliable AC power electronics and high - power microprocessors. The Flux Vector drive for example can highly compete on an application that DC Drives would, in early years, be required. 

Even though AC Variable Frequency Drives are readily replacing DC Drives and motors, there is still a large base of DC equipment that has to be supported by experienced technicians. Joliet Technologies believes that by not abandoning the DC market we can better serve our customer base demands. For example, older machines with multiple exciting DC Analog drives and motors may be a great candidate for retrofitting newer digital DC drive equipment. Saving cost and down time. 

If your needs are much simpler and speed control is not part of the work scope. Joliet Technologies can provide Custom AC Drive Controllers consisting of contactors, starters, relays, pushbuttons and PLCs. Our engineers can provide all PLC and Peripheral Programming needs. Panels can be designed by an OEM or we can help with engineering to specifications provided.

Joliet Technologies Custom Panel Shop and On Site Retrofit Benefits

We have the experience and know how to provide you with the best drive for your application. Joliet Technologies can evaluate your current equipment and recommend either a Retro-Fit or System Replacement. Feel free to contact us with any drive questions you may have.

Joliet Technologies is a UL (Underwriters Laboratories) Listed, Enclosed Industrial Control Panel shop. 

Joliet Technologies is dedicated to provide the highest quality equipment and service. This is why we started this company. With our experience, expertise and commitment, you will be completely satisfied with our workmanship and our work ethic. All work is performed following our Quality Assurance System (based on the ISO9001:2008 Standard), assuring you the highest quality.

From system integration to panel fabrication Joliet Technologies provides quality systems and custom control panels for new applications or system upgrades, all in a timely fashion, and at competitive rates.

How to Maintain a VFD (Variable Frequency Drive)

Do you know how to maintain a Variable Frequency Drive (VFDs)? Doing so is easier than you might think. By integrating some simple, logical steps into your preventative maintenance program, you can ensure your drives provide many years of trouble-free service.