WEG CFW300 Variable Frequency Drive
High-Performance VFD for Demanding Industrial Applications
The CFW300 represents WEG's advanced drive technology, offering exceptional performance for demanding industrial applications. With sophisticated vector control, modular expansion capabilities, and extensive communication options, the CFW300 delivers precise motor control for the most challenging applications.
Power Range & Frames
0.25 to 1.5 HP (0.18 to 1.1 kW) in IP20 compact frames
0.25 to 3 HP (0.18 to 2.2 kW) with built-in EMC filtering
0.25 to 7.5 HP (0.18 to 5.5 kW) heavy-duty or normal-duty ratings
0.5 to 7.5 HP (0.37 to 5.5 kW) across six mechanical frame sizes
Control Performance
High torque at low speed with automatic motor identification routines
Optional encoder module enables precision positioning and speed regulation
Safe Torque Off (STO) option, conformal coating, and extended temperature ratings
Expansion Ecosystem
- Plug-in communication modules for Modbus TCP, DeviceNet, PROFIBUS, and CANopen
- Hot-swappable I/O cards add relay outputs, analog inputs, encoder feedback, or PTO pulses
- Remote keypad kits, IP66/NEMA 4X enclosures, and DIN-rail adapters simplify mounting
- Integrated brake chopper (frames C-F) with optional dynamic braking resistors
- EMC filters, USB/Bluetooth programming interfaces, and panel door mounting options
OEM & Machine Targets
- Pick-and-place gantries and indexing tables
- Food & beverage augers, fillers, and washdown conveyors
- Packaging form/fill/seal and labeling systems
- Pumps, blowers, and HVAC booster skids
- Small presses, woodworking, and CNC auxiliary axes
- Distributed machine cells using Ethernet-based control
Advanced Features & Benefits
Vector Control Technology
Advanced sensorless vector control with optional encoder feedback for precise speed and torque control in demanding applications.
Modular I/O Expansion
Expandable digital and analog I/O modules allow customization for specific application requirements and future system growth.
Communication Protocols
Support for Modbus RTU/TCP, DeviceNet, Profibus DP, CANopen, and Ethernet protocols for seamless system integration.
Application Functions
Pre-configured function blocks for pumps, fans, conveyors, and specialized industrial applications reduce commissioning time.
Energy Optimization
Automatic energy optimization, sleep mode, and regenerative braking capabilities deliver significant energy cost savings.
Industrial Reliability
Robust design with conformal coating, extended temperature range operation, and IP65 protection rating for harsh environments.
Communication & Integration
Modbus RTU/TCP
Industry-standard serial and Ethernet communication for SCADA integration
DeviceNet
Allen-Bradley compatible network for industrial automation systems
Profibus DP
Siemens-compatible fieldbus for European automation standards
CANopen
High-speed CAN-based protocol for real-time control applications
Micro Drives with PLC Intelligence
Pairing the CFW300 with WEG CLIC micro PLCs or PLC500 modular controllers delivers a compact yet powerful automation stack. Gross Automation engineers map communication parameters, load profiles, and diagnostics so OEM machines ship with proven logic and visibility.
- CLIC PLC templates handle multi-speed selection, PID loops, and hand/off/auto stations
- PLC500 libraries expose CFW300 fault history, energy data, and maintenance counters
- TPW HMIs provide operators with localized set-point control and guided troubleshooting
- Secure Ethernet architectures support remote access, data logging, and OEM service plans
Integration Deliverables
Preloaded Programs
Parameter files, PLC logic, and HMI screens staged for your machine family before shipment.
Network Architecture
EtherNet/IP, Modbus TCP, or CANopen topologies with documented IP schemes and tag databases.
Testing & Documentation
Bench validation scripts, FAT documentation, and training videos for maintenance crews.
Engineered CFW300 Panel Packages
Need turnkey micro-drive panels? Our UL508A team packages CFW300s with control transformers, contactors, terminals, and safety devices so OEMs and integrators can focus on the machine.
- Custom multi-drive enclosures with common power buses and prewired circuit protection
- Door-mounted HMIs, selector switches, and e-stops using WEG CSW operators
- Factory labeling, engraved legend plates, and full documentation sets
- Startup assistance, remote support, and lifecycle spares management
Package Inclusions
Electrical Drawings
Schematics, layouts, and bill of materials aligned with your standard numbering system.
Software Assets
Drive parameter backups, PLC/HMI source files, and revision control documentation.
Quality Records
Inspection reports, torque logs, and serialized test certificates for each enclosure.
Application Playbook
Packaging & Converting
Coordinate CFW300 axes with PLC500 or CLIC logic for synchronized sealers, feeders, and cartoners.
Food & Beverage
Deploy IP66 drives with stainless remote keypads and hygienic CSW push buttons for washdown zones.
OEM Machinery
Modular option cards and compact footprints streamline UL listing, spare parts, and repeat builds.
Water & HVAC
Use built-in PID, sleep functions, and Pump Genius macros to stabilize small pump and booster systems.
Technical Documentation
Related WEG Drive Series
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