Danfoss VLT® and VACON® drives, now one company, offer 68 years of combined experience and 5,000 people specialized in AC drives.

A variable frequency drive (VFD), is a device used to control the speed of an electrical motor to:

• enhance process control
• reduce energy usage and generate energy efficiently
• decrease mechanical stress on motor control applications
• optimize the operation of various applications relying on electric motors

Drives can also be utilized to convert energy from natural and renewable resources like the sun, wind, or tides, and transmit it to the electrical network or use it for local consumption. In hybrid technologies, variable frequency drives are used to combine conventional energy sources and energy storage to create total energy management solutions

Variable frequency drives are also known by various other names such as adjustable speed drives, adjustable frequency drives, AC drives, variable speed drives, frequency converters, inverters, and power converters.

Did you know?

• 20% of the world’s energy consumption is electrical energy
• 40% of electrical energy is used by electrical motors
• 75% of AC drives are used on pumps and fans
• Global electrical energy consumption could be reduced by 10% if AC drives were used in every suitable application