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Drives & Soft Starters
AC Drives: Choose a drive category below for a quick summary of the series
Electrical drives control the speed, torque and direction of a downstream device, most typically a motor. Variable frequency drives (VFD) provide speed control for AC motors such as those in conveyors, fans, pumps and shop tools. DC drives provide variable speed control for DC motors, ideal for applications requiring low-speed control, torque and power.
Go to our Guide for Selecting
the Right AC Drive
WEG CFW100
WEG CFW300
WEG CFW500
DURApulse GS20 and GS20X AC drives
DURApulse GS4 AC Sensorless Vector Drives
Ironhorse NEMA4X AC Drives
WEG CFW100
WEG CFW300
WEG CFW500
GS20 & GS20X
DURApulse GS4
Ironhorse NEMA4X
WEG CFW100
- Smallest AC drive in the world
- 1/4 to 1 hp, 115V (Single-Phase input)
- 1/4 to 1 hp, 230V (Single-Phase input)
- Output current 1.6 A, 2.6 A and 4.2 A (0.25; 0.5 and 1cv)
- Single-phase power supply (110/230 VAC)
- Operates in 50℃ [122℉] ambient temperature environments without derating
- Withstands 150% overload for one minute every 10 minutes at an ambient temperature of 50℃ [122℉]
- Vector (VVW) or Scalar (V/F) control
- Plug-and-play functionality
- Built-in operating interface (HMI)
- Digital inputs
- Surface mounting (with PLMP accessory) or DIN rail mounting
- Degree of protection IP20
- Removable external fan (for Frames B and C)
- Fault or alarm diagnosis
- Electronic protection against motor overload
- Free software (WPS)
- Standard coating classified as 3C2 according to IEC 60721-3-3 on all versions for greater protection of the internal circuitry in harsh environments
- PID control function
- Fire mode function
- Modbus master function
- Energy-saving function
Starting at $121.00
WEG CFW300
- 1/4 to 1.5 hp, 115V (Single-Phase input)
- 1/4 to 3 hp, 230V (Single-Phase input)
- 1/4 to 5 hp, 230V (Three-Phase input)
- Scalar (V/Hz) or Sensor-less vector(VVW) control modes
- 1-ph and 3-ph input power
- Built-in keypad display (with optional Remote keypad)
- Memory Module for easy project transfer
- DIN-Rail or surface mount
-
Generous Built-in I/O:
- 6 Digital input points
- 1 Relay output point
- 1 Analog output channel
- Four expansion I/O modules available
-
Optional Communications modules
- RS-232
- RS-485
USB (config & programming only) - Zero-Stack mounting; no heat dissipation space required beside/between adjacent drives
- cUL, CE
Starting at $146.00
WEG CFW500
- Broad offering from 1/4 to 60 hp Scalar, Vector Control (Sensorless and closed-loop with encoder feedback), and VVW PM (suitable for fan, pump and compressor)
- 200-240V (single-phase/3-phase and 3-phase only models) and 380-480V input voltage
- 230VAC: three-phase up to 30Hp, single phase input up to 3hp
- STO - Safe Torque Off (TUV certified) with option module
- 460VAC: three-phase up to 3 HP
- IP20 with NEMA 1 conduit box options (not required for NEMA 4X IP66)
- Speed and torque control down to 0 (zero) rpm
- Precision of 0.01% for speed control
- DIN rail (35mm), A, B, and C frame, or surface mounting with screws on all frame sizes; Frame F can be flange mounted
- Same programming as other WEG VFDs
- Built-in SoftPLC
- 0 to 500 Hz output frequency
- 2.5 to 15 kHz adjustable switching frequency (5 kHz standard)
- PID with sleep mode
- Flying start / ride-through
- Built-in 24VDC power supply (max. 150 mA)
- Built-in RS-485 (Modbus RTU) communication
- Plenty of built-in I/O, expandable with option modules
- Control features: Linear and "S" ramp acceleration and deceleration, local/remote control, DC braking, torque boost, motor slip compensation, electronic pot, preset speeds, adjustable V/Hz profile, maximum and minimum adjustable frequency limits, two skip frequencies, adjustable output current limit, JOG, ride-thru, flying start and PID regulator
- Keypad with backlight, with main display line, secondary display line and bar graph display
- CFW500 NEMA 4X drives are available with or without integral, locking disconnect
- CFW500 NEMA 4X drives can operate AC induction or permanent magnet AC motors (PMAC).
Starting at $205.00
DURApulse GS20 and GS20X AC drives
- 1/4 to 1 hp, 115 VAC (single-phase input)
- 1/4 to 3 hp, 230 VAC (single-phase input)
- 1/2 to 3 hp, 230 VAC (single-phase input GS20X)
- 1/4 to 20 hp, 230 VAC (three-phase input)
- 1/2 to 7.5 hp, 230 VAC (three-phase input GS20X)
- 1/2 to 30 hp, 460 VAC (three-phase input)
- 1 to 10 hp, 460 VAC (three-phase input GS20X)
- 1 to 10 hp, 575 VAC (three-phase input)
-
The DURApulse GS20/GS20X series of AC drives includes many of the same standard features as our other GS
drives including dynamic braking, PID, removable keypad, and other features such as:
- V/Hz Control, Sensorless Vector Control, Field Oriented Control.
- Torque Control Mode
- 100kA short circuit current rating
- STO - Safe Torque Off
- Built-in PLC (up to 2,000 steps)
- Optional Ethernet communications Modbus TCP and Ethernet/IP
- Generous built-in I/O
- 2 Analog inputs, AI1: +/- 10VDC, 0-10VDC, 0-20mA/4-20mA, AI2: 0-10VDC, 0-20mA/4-20mA
- 1 analog output 0-10VDC
- 1 Frequency output
- 7 Digital inputs, 2 digital outputs, 1 relay output
- Zero-stack installation
- GS2 mode to ease with migration from GS2 VFDs (not supported on GS20X)
- GS20X adds NEMA4X enclosure and options NEMA 4X disconnect
- Two-year warranty
- UL, CE listed
Starting at $144.00
DURApulse GS4 AC Sensorless Vector Drives
- 1-25 hp, 230VAC (single-phase input)
- 1-100 hp, 230VAC
-
1-300 hp, 460VAC
The DURApulse GS4 series of AC drives includes many of the same standard features as our other GS drives including dynamic braking, PID, removable keypad, and much more:
- V/Hz control or sensorless vector
- 100kA Short Circuit Current Rating (SCCR)
- 50℃ rating
- STO - Safe Torque Off (TUV certified)
- Built-in PLC (up to 10k rungs)
- Expanded I/O capability - 110V Inputs, Relay Outputs, combo DC I/O card
- Analog I/O - Configurable: 3 In and 2 Out
- Fire mode
- Circulatory control mode
- Field upgradeable firmware
- High speed communication interfaces with MODBUS RTU and BACnet protocols built in, with optional communication cards: MODBUS TCP, EtherNet/IP
- Two-year warranty
- CE, TUV, UL, cUL
Starting at $463.00
Ironhorse NEMA4X AC Drives
The ACN series of NEMA 4X sensorless vector AC drives bridge the gap between a micro drive and high-performance VFD. These AC drives have features normally only found on more expensive drives, in a NEMA 4X enclosure and at a great price.
These drives offer an advanced remote keypad, Ethernet option cards so the drive can communicate over Modbus TCP and EtherNet/IP, and the option to configure and program using the free, user-friendly VFD Suite software.
ACNxx series drives support 4 control modes which include: V/Hz, slip compensation, sensorless vector and torque control.
- 230VAC: three-phase up to 20hp, single phase up to 10hp
- 460VAC: three-phase up to 30hp, single-phase up to 15hp
- Single-phase UL Ratings - 230 or 460 VAC input
- Can be used with AC induction motors or permanent magnet AC motors (PMAC)
- Lockable, integrated disconnect or no-disconnect models
- Output frequency to 400Hz (120Hz sensorless vector)
- STO - Safe Torque Off (SIL2)
- Built-in user sequence programming of 18 steps
- Optional LCD text-based keypad can be remotely mounted with IP66 case
- Local/Remote control mode selection or digital/comm input with Hand/Off/Auto control
- Momentary power loss restarts
- Analog I/O - configurable 2 Inputs and 1 output
- 2-motor control
- Built-in dynamic braking
- PID controller - including sleep and wake
- High speed communication interfaces with MODBUS RTU built-in, with optional EtherNet/IP and ModbusTCP communication card
- Fire Mode - Run fire mode during emergencies to have uninterrupted smoke removal and system pressure
Starting at $189.00
Advantages of AC Drives
- Save energy - Significant energy savings can be realized in many fan and pump applications that previously used dampers or ON/OFF control: AC drives allow motor speed to be fine-tuned to the process.
- Reduce start up current - controlling the inrush current at motor start-up allows the use of smaller fuses, and reduces electrical peak load.
- Reduce mechanical stress - controlled/smooth starting and stopping minimize mechanical shock and wear and tear on the system.
- Power factor - Motors have very poor power factors (especially at light loading). Drives significantly increase power factor (even at light loading) and can eliminate the need for power factor correction capacitors and/or utility power factor charges.
- Variable Speed and integrated functionality - AC drives can vary motor speed and direction by operator input (keypad buttons/speed control knob) or by digital and analog inputs (from pushbuttons/switches/pots or PLC outputs). Basic machine control can sometimes be performed in the drive (limit switches/sensors can be wired to the drive's inputs to control motor speed or direction).
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