WEG CFW-09 Variable Frequency Drives

The WEG CFW-09 Series of Variable Frequency Drives incorporate the world’s most advanced technology in drives for three-phase AC induction motors.
The Vectrue Technology™ represents a siginificant advancement, allowing this new generation of WEG VFD’s to combine V / F, Sensorless Vector and Closed Loop Vector (with encoder) control techniques all in one product.
An innovation was also introduced to simplify applications that require braking torque. A new feature named Optimal Braking™ eliminates the need for the dynamic braking resistor in some applications allowing a simpler, more compact and economic solution.  

Applications

• Centrifugal Pumps*
• Positive Displacement Pumps
• Fans / Blowers
• Conveyors
• Compressors
• Agitators and Mixers
• Extruders
• Grizzly Feeders
• Centrifuges
• Cranes and Hoists
• Rollout Tables
• Presses
• Saws

* Booster Pump Applications: The CFW-09 can utilize a pressure transducer to control motor speed based on demand to maintain a constant pressure.  Pressure transducer sold separately.

Standard Features

• V/Hz or Sensorless Vector Control via parameter selection
• Self Tuning to motor parameters
• NEMA 1 Enclosure up to 200HP
• IP20 “Finger Safe” Enclosure from 250 to 500HP
• 200-240V or 380-480V input voltage
• Single or Three-phase input voltage up to 3HP/230V
• 150% current overload capacity
• DC bus connections accessible
• Detachable smart keypad with dual display and copy function
• 32 bit RISC microprocessor controlled PWM output
• 1.25 / 2.5 / 5 / 10 kHz adjustable switching frequency
• Six isolated programmable digital inputs
• Three programmable relay outputs (250Vac / 1A)
• Two isolated programmable analog inputs
• Two programmable analog outputs
• Protective features: Overcurrent, motor overload, drive overtemperature, output phase-to-phase and phase-to-ground short circuit, DC bus over and under voltage, power supply under voltage and phase loss and external fault
• 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 motor speed limits, three skip frequencies, adjustable output current limit, JOG, ride-thru, flying start and PID regulator
• Display readings: Motor speed, frequency, voltage, current and torque, output power (kW), last four faults, drive status, digital and analog I/O status, hours powered and hours running
• Ambient: 104ºF (40ºC), 3300 ft (1000m) altitude, 90% humidity, non- condensing

Optional Features

• Optional NEMA 4X enclosures for wash-down duty
• Closed loop vector control
• Remote keypad with Copy Function
• RS-232 or RS-485 Serial Interface
• On/Off line PC programming with Superdrive
• Fieldbus Comm: Profibus DP, DeviceNet or Modbus RTU
• Encoder buffered output
• Additional digital and analog I/O

SUPPORT DOCUMENTS Cutsheet, Nema 1 Cutsheet, Nema 4X Typical Booster System Installation Layout Manual

 

RELATED LINKS Factory Website