How Does an AC Flux Vector Drive Work?

An AC flux vector drive winds fine thread during production.

Production facilities use varying motor drives, like AC flux vectors, to automate equipment. Each drive has its own internal design that differentiates it and its application for overall factory productivity.

Identification

An alternating current, or AC, flux vector drive is a device that controls an AC motor for an automated machine. AC flux vector drives differ from other drive types because they control the motor's speed, as well as the motor's torque, or rotational force.

Function

As electrical current enters the AC motor, it magnetizes the motor's components and generates the drive's speed. When the motor begins to rotate, a closed circuitry system notifies the flux vector drive's microprocessor of the motor's position and speed through electronic components.

Significance

The constant communication between the AC motor and the drive's microprocessor makes it possible to control the speed and torque of the drive. This type of drive is especially helpful for tension control automation, such as winding fine thread for retail sale.

References

• EC & M: Understanding Variable Speed Drives (Part 1)
• Motion System Design: Flux Vector Drives