Drew/Siemens: The key to achieving higher productivity with variable-speed drives is to look at the entire system. Proper design based on boundaries such as overall speed requirements, accuracy, ...

The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...

For many retrofit projects, the use of a VFD seems like a “no brainer.” Drives are now cheaper and more reliable than ever, and the benefits of efficient control of motors can’t be beat. Still, there ...

Compressed air is a vital utility to most commercial and industrial operations. It runs essential tools and machinery, provides power to material-handling systems, and clean air to processes. Yet ...

It is interesting to look at figures from the Energy Information Administration about where energy gets consumed in our economy. These figures reveal that industrial uses account for 31% of all energy ...

A variable frequency driven (VFD) is a type of motor that controls the levels of frequency and voltage that alter the speed of an electric motor. The drive alters torque and motor speed and can be ...

When it comes to making decisions among various automation technologies to perform a task, the answer is rarely clear cut. Ultimately, the decision is often tied to the specifics of the application ...

Two heat pump systems that provide heating and cooling for a pair of pharmaceutical plants in Finland, are being controlled ...

THE USE OF INVERTER-BASED variable speed drives (VSDs) in home appliances is forecast to double over the next five years, according to the latest detailed assessment of the market from IMS Research.