Variable frequency drives typically control velocity or torque. In contrast, servodrives are often used to control motor position — and almost always use a position feedback device on the motor.

The HVACR industry is one where both centrifugal pumps and fans are used on an ongoing basis. Because of this, HVACR systems are huge energy consumers. Creating higher-efficiency systems offers a ...

Compressors with variable-frequency drives work more efficiently than conventional units, and reduce maintenance costs and noise levels.

The variable frequency drive (VFD) includes a type of motor controller that varies frequency and voltage to drive an electric motor.These drives also can control ramp-up or ramp-down of the motor.

Applications Variable frequency drives are used for two main reasons: To improve the efficiency of motor-driven equipment by matching speed to changing load requirements. To allow accurate and ...

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 ...

Although much has been published on variable-frequency drives (VFDs), people continue to be confused by them. The intent of this article is to provide a basic overview of these devices by evaluating ...

The question we’ll be answering in this episode is: How do soft starters and variable frequency drives compare? Joining me to answer this question is Jacob Becker, system solution architect at system ...

10 tips for a successful variable frequency drive installation Homeowners rely on a continuous flow of water to do daily household activities like watering the lawn, laundry, running the dishwasher ...