Variable frequency drives (VFD) enable speed control for three-phase AC motors such as those in conveyors, fans, pumps and shop tools. In ratings up to 300hp, the diverse lineup includes GS series, Ironhorse and WEG brands, with various environmental ratings and control modes. A full line of accessories for each drive family ensures a reliable installation.
AutomationDirect carries a range of AC variable frequency drives (VFD) for motor speed control and other industrial control applications.
DURApulse GS20 Series AC Drives
Several speed control modes available: standard V/Hz with pulse input feedback, sensorless vector control (SVC), and ultra precise Field Oriented Vector control (FOC).
General purpose AC drive prices start at
WEG CFW500 AC Drives ... New!
Closed-loop flux vector and torque control modes available in sizes up to 60 hp
DURApulse AC Drives
Sensorless vector technology up to 300 hp VFD
High-performance drive prices start at
WEG CFW500 IP66 AC Drives ... New!
Same closed-loop flux vector technology as the CFW500 IP20 in a NEMA 4X rated enclosure, in sizes up to 20 hp.
IronHorse ACN/ACNND Series AC Drives ... New!
ACN series NEMA 4X drives offer standard V/Hz, slip compensation, sensorless vector control (SVC), and torque control. Confgiure these drives with the free, user-friendly VFD Suite configuration software.
DURApulse GS20X NEMA 4X AC Drives
GS20X series NEMA 4X drives offer standard V/Hz with pulse input feedback, sensorless vector control (SVC), and Field Oriented Vector control.
NEMA 4X AC drives start at
Line reactors have universal mounting feet with multiple mounting slots and can replace most line reactors using existing mounting holes. Output filter units combine line reactor and resistor-capacitor filter circuit to provide protection against voltage wave reflection, especially on long motor cable runs."
Drive configuration and programming software allows the user to connect to a VFD from a PC for fast, convenient setup and/or programming of a built-in PLC, and offline storage of (multiple) configuration parameters.
Option cards are available to increase the available I/O or add communications capabilities.
Remote keypads, bezels, cables, backup power supplies, memory modules, DIN rail mounting adapters and other accessories are available to complete the installation of your VFD.
Conduit box kits bolt to the bottom of a VFD to provide conduit entry and a/ NEMA 1 rating without the need to install in a separate enclosure. Flange mounting kits extend the heat sinks on the back of the drive through the rear of the enclosure. EMC shield plates allow motor lead shields to be grounded at the drive.
NEMA 4X disconnect switch provides local on/off control to the GS20X drive.