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Home > Variable Speed Drives & Soft Starters > Varible Speed Drives > CFW - 09
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CFW-09
    The WEG CFW-09 Series of Variable Speed 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 inver ters 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.


Vectrue Technology™
    This technology was developped by WEG for variable speed applications with three-phase AC induction motors providing the following advantages:
    • V/ F or Vector Control modes via parameter selection;
    • True Flux Vector Control in either open or closed loop vector modes;
    • True Open Loop Vector Control with high torque and fast dynamic response, even at very low speeds;
    • Self-tuning for automatic drive set-up to match the drive to motor and load in vector modes.

Optimal Braking™
    For applications that require reduced braking times or to stop high inertia loads, traditional inverters use a Dynamic Braking scheme, where the excessive kinetic energy regenerated to the DC Link is dissipated as heat in a dynamic braking resistor connected to the drive.
    The CFW-09 Vector Modes incorporate the Optimal Braking™ feature, which allows a sufficient braking performance to handle most applications that so far needed dynamic braking.
    This innovation allows high dynamic performance drive systems with braking torques of about 5 times of typical DC braking.
Other Advantages

    •High performance RISC 32 bit microprocessor;
    •Detachable SMART keypad with dual display (LCD and LED);
    •Wide power range: 1.1.. 1,100 kW;
    •Variable and Constant Torque ratings; •Degree of Protection NEMA 1 / IP 20 standard up to 132kW, IP 20 up to 330kW and NEMA 4X / IP 56 in stainless steel enclosure up to 7.5kW;
    •Simplified installation and programming;
    •Oriented start-up;
    •Through surface mounting option;
    •On/Off-line PC programming with SuperDrive software (Optional);
    •DC bus connections available;
    •Fieldbus network communication: Profibus DP or DeviceNet (optional). Modbus RTU (built-in) also available.
    •International certifications including UL and cUL, CE, C-Tick and IRAM.


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