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

2.3 ABOUT THE CFW-11

The CFW-11 frequency inverter is a high performance product designed for speed and torque control of
three-phase induction motors. The main characteristic of this product is the "Vectrue" technology, which has the
following advantages:
Scalar control (V/f), V V W or vector control programmable in the same product.
The vector control may be programmed as "sensorless" (which means standard motors without using encoders)
or as "vector control" with the use of an encoder.
The "sensorless" control allows high torque and fast response, even in very low speeds or at the starting.
The "vector with encoder" control allows high speed precision for the whole speed range (even with a standstill
motor).
"Optimal Braking" function for the vector control, allowing the controlled braking of the motor and avoiding
the use of the braking resistor in some applications.
"Self-Tuning" feature for vector control. It allows the automatic adjustment of the regulators and control
parameters from the identification (also automatic) of the motor parameters and load.
General Instructions
CFW-11 | 2-5
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