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Micro AC Variable Frequency Drives (VFD)
Micro variable frequency drives (VFD) enable speed control for three-phase AC motors at an affordable price and in a compact footprint. For applications with smaller motors, many micro drives support single-phase input power and some have high-end features such as vector control or a built-in PLC. A full line of accessories is available to ensure a reliable installation.
Micro AC Drive Units
Category Selection
- WEG - CFW100 Drive Units
(120 / 230 VAC) - WEG - CFW300 Drive Units
(120 / 230 VAC) - GS1 Drive Units
(120 / 230 VAC)
WEG - CFW100 Gen 2
Series AC Drives
The CFW100 is a single-phase input, three phase output variable frequency drive (VFD) developed for simple applications ranging from 1/4 to 1hp (0.18 to 0.75 kW).
The CFW100 series features compact size and includes a built-in operator interface (HMI) and SoftPLC with free WPS programming software. A variety of plug-in option modules can be added to extend capabilities.
- Motor rating: 0.25, 0.5 and 1 hp
- Output current: 1.6, 2.6 and 4.2 A
- Single-phase power supply (110/230 VAC)
- 50°C (122°F) ambient operating temperature
- DIN rail or surface mounting
- Vector (VVW) or Scalar (V/F) control
- Built-in operating interface (HMI)
- Output frequency range: 0-400 Hz; 0.1Hz resolution
- 150% overload for 1 minute every 10 minutes
- 4 digital inputs included
- Optional analog input and relay output
- Degree of protection: IP20
- cUL, CE
WEG CFW100 series AC drive units start at
$146.00
(CFW300A01P6S2NB20)
WEG CFW100 Series AC Drives Overview
WEG - CFW300 Drive Units
(120 / 230 VAC) SVC w/ PLC
WEG CFW300 Series AC Sensorless Vector Drives
WEG CFW300 variable frequency drives are high-performance VFDs for three-phase induction motors. They are ideal for applications on machines or equipment that require precise variable-speed control with easy setup and operation.
The CFW300 series features compact size and includes a built-in operator interface (HMI) and SoftPLC with free WPS programming software. A variety of plug-in option modules for additional I/O and communications protocols can be added to extend capabilities.
- Sixteen units available from 1/4 HP to 5 HP
- Rated output 1.6 to 15.2 A (0.25 HP / 0.18 kW to 5 HP / 3.7 kW)
- Single-phase and three-phase power supply
- DIN rail (35mm) or surface mounting with screws
- Side-by-side mounting; no heat dissipation space required
- Voltage range:
1-phase models: 110-127 VAC & 200-240 VAC
3-phase models: 200-240 VAC - Control mode: Scalar (V/Hz) or Voltage Vector (VVW)
- Switching frequency: 2.5, 5, 10, or 15kHz
- Output frequency range: 0-400 Hz; 0.1Hz resolution
- 150% overload for 60sec, 200% for 3 sec every 10minutes
- Degree of protection: IP20
- Operating temperature: 14 to 122°F (50°C); up to 140°F (60°C)
- Altitude: 0 to 3300ft (1000m); up to 13,200 ft with current derating
- Humidity: 5 to 95% non-condensing
- Integrated brake chopper for frame size B (not available size A)
- Local keypad built-in, remote keypad optional
- cUL, CE
WEG CFW300 series AC drive units start at
$146.00
(CFW300A01P6S2NB20)
GS1 Drive Units (120 / 230 VAC)
- 1/4 and 1/2 hp, 115 VAC single phase drives
- 1/4, 1/2 and 1 hp, 230 VAC single/three-phase drives
- 2 hp, 230 VAC three-phase drives
- Our most affordable and compact inverter
- Offers V/Hz control with advanced application features
- All GS1 AC drives have three-phase inputs and three-phase outputs unless otherwise noted
- These drives can be configured using the built-in digital keypad (which also allows you to set the drive speed, start and stop, and monitor specific parameters) or with the standard RS485 serial comm port
- Standard GS1 series drive features include one analog input, four programmable digital inputs and one programmable normally open relay output
- Typical applications include motor speed control, conveyors, fans, pumps, shop tools
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