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Motor Controls > AC Variable Frequency Drives (VFD) > General Purpose

General Purpose AC Variable Frequency Drives (VFD)

General purpose variable frequency drives (VFD) enable speed control for three-phase AC motors such as those in conveyors, fans, pumps, and material handling. Available in capacities up to 100hp, various models offer V/Hz, sensorless vector or field oriented vector control modes. A full line of accessories ensures a reliable installation.

Micro

General Purpose

High-Performance

NEMA 4X

VFD Accessories

Shop Now Customer Testimonials

General Purpose AC Drives

DuraPulse GS20 Series AC Drives
DuraPulse GS3 Series AC Drives

DURApulse GS20
AC Drives

DURApulse GS20 AC drives offer several different speed control modes: standard V/Hz with pulse input feedback, sensorless vector (SVC) for Induction Motors (IM) and Permanent Motors (PM), and ultra precise Field Oriented Vector control (FOC) for maximum open loop speed regulation control.

DURApulse GS20 offers two analog inputs, one analog output, one frequency output, seven digital inputs (including one pulse train input up to 33kHz), two digital outputs, one SPDT relay output, and two STO inputs. All of the analog and digital I/O can be configured for a wide variety of input or output functions. One option card slot is available for either the backup control power option card or Ethernet/IP and Modbus TCP communication option card.

The DURApulse GS20 new generation high performance vector control drives provide many standard and advanced functions - all in a compact unit that has been reduced 40% in size. A NEMA 4X version provides service in the harshest of environments.

The drives include many of the same standard features as our GS family of drives including dynamic braking, PID, removable keypad, and RS-485 Modbus communication.

The GS20 drive expands the DURApulse family by adding single-phase input capability (all 230VAC drives can be supplied single-phase), a built-in PLC, and optional EtherNet/IP and ModbusTCP communication card. The drive supports up to four (4) independent IM motor parameter sets or supports control of a single AC PM motor.

Compact modular design
Broad offering from 1/4 to 30 hp
NEMA 4X available up to 10hp
Single-phase 120VAC up to 1hp
Single-phase/three-phase 230VAC up to 20HP
Three-phase 460VAC and 575VAC
Flexible carrier frequency to 15khz and output frequency to 600Hz
Speed control potentiometer built in
Built-in PLC to support up to 2K steps
Built-in USB port for fast & easy programming
Free downloadable software for drive configuration and PLC programming
Field-upgradable firmware (drive & communication option card)
Optional LCD keypad
Momentary power loss restarts
100kA Short Circuit Current Rating
Analog I/O - configurable 2 Inputs and 1 Output
Multi-Motor Control (4 total)
Built-in Dynamic Braking - optional resistors
PID Controller - including sleep and wake
GS2 mode duplicates exact parameter configuration of GS2

DURApulse GS20 Series AC drives start at
$144.00
(GS21-20P2)

GS20 Series AC Drives Overview

DURApulse AC Drives - GS3 Series

Sensorless Vector Drive Technology up to 100 hp

1 hp to 3 hp, 230 VAC (single/three-phase input)
5 hp to 50 hp, 230 VAC (three-phase)
1 hp to 100 hp, 460 VAC (three-phase)

The DURApulse series of variable frequency drives (VFD) offers all of the features of our GS2 series of AC drives including dynamic braking, PID, removable keypad and RS-485 Modbus communication.

All DURApulse series AC drives have three-phase inputs and three-phase outputs unless otherwise noted.
The DURApulse VFDs offer sensorless vector control with the option of encoder feedback for enhanced speed control.
The standard smart keypad (a.k.a. HIM or Human Interface Module) is designed with defaults for the North American customer and allows you to configure the drive, set the speed, start and stop the drive, and monitor critical parameters for your application.
In addition, this keypad has internal memory that allows four complete programs to be stored and transferred to any DURApulse VFD.
The DURApulse GS3 series VFDs offer three analog inputs, eleven digital inputs, and one SPDT relay output.
Typical applications include motor speed control, conveyors, fans, pumps, compressors, HVAC, material handling, mixing, shop tools, extruding, grinding

DURApulse GS3 Series AC drives start at
$271.00
(GS3-21P0)

GS3 Series AC Drives Overview

Testimonials

Love these drives! They work great, are easy to program!

Wendall in BROOKFIELD, MO Testimonial for GS21-22P0

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General Purpose AC Drives

DURApulse GS20 AC Drives

DURApulse AC Drives - GS3 Series

Company Information

DURApulse GS20
AC Drives