About The Cfw-11 - WEG CFW-11 User Manual

2.3 ABOUT THE CFW-11

The CFW-11 is a high performance variable frequency drive that makes it possible the control of speed and
torque of three-phase AC induction motors. The central characteristic of this product is the "Vectrue" technology,
which presents the following advantages:
(V/f), V VW or vector control programmable in the same product.
The vector control can be programmed as "sensorless" (which means standard motors, without the need of
encoder) or vector control with motor encoder.
The "sensorless" vector control allows high torque and fast response, even at very slow speeds or during
starting.
The "vector control with encoder" allows very high speed accuracy and control for the entire speed range
(speed control down to 0 rpm).
The "Optimal Braking" function for the vector control allows a controlled motor braking, eliminating in some
applications the braking resistor.
The vector control "Self-Tuning" function allows the automatic setting of the regulators and control parameters,
from the identification (also automatic) of the motor and load parameters.
General Information
CFW-11 | 2-5
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