WEG CFW-11W, Addendum, Page: 36 / 42

Technical Specifications
CFW11W | 5-5
(3) The motor power ratings are merely a guide for 440 V 4 poles WEG motor, in the 400 V series; 575 V in
the 500 V series and 690 V in the 600 V series. The adequate inverter sizing must be based on the
used motor rated current.
(4) The information provided about the inverter losses is valid for the rated operating conditions, i.e., for
rated output current and rated switching frequency.
5.2. ELECTRONICS/GENERAL DATA
CONTROL METHOD
Voltage source
Types of control:
- V/F (Scalar).
- VVW: Voltage vector control WEG.
- Vector control with encoder.
- Sensorless vector control (without encoder).
PWM SVM (Space Vector Modulation).
Full digital (software) current, flux and speed regulators.
Execution rate:
- current regulators: 0.2 ms (5 kHz)
- flux regulator: 0.4 ms (2.5 kHz)
- speed regulator / speed measurement: 1.2 ms
OUTPUT
FREQUENCY
0 to 3.4 x rated motor frequency (P0403). This frequency is programmable from 0
Hz to 300 Hz in the scalar mode and from 30 Hz to 120 Hz in the vector mode.
PERFORMANCE
(Vector Mode)
SPEED
CONTROL V/F (Scalar):
Regulation (with sleep compensation): 1 % of rated speed.
Speed variation range: 1:20.
V V W :
Regulation: 1 % of the rated speed.
Speed variation range: 1:30.
Sensorless:
Regulation: 0.5 % of the rated speed.
Speed variation range: 1:100.
Vector with Encoder:
Regulation:
±0.01 % of the rated speed with a 14-bit analog input (IOA).
±0.01 % of the rated speed with a digital reference (Keypad, Serial, Fieldbus,
Electronic Potentiometer, Multispeed).
±0.05 % of the rated speed with a 12-bit analog input (CC11).
TORQUE CONTROL
Range: 10 to 180 %, regulation: ±5 % of the rated torque (with encoder).
Range: 20 to 180 %, regulation: ±10 % of the rated torque (sensorless above
3 Hz).
INPUTS
(CC11 board)
ANALOG
2 isolated differential inputs per differentia amplifier; resolution of AI1:12 bits,
resolution of AI2: signal, (0 to 10) V, (0 to 20) mA or (4 to 20) mA,
Impedance: 400 kΩ for (0 to 10) V, 500 Ω for (0 to 20) mA or (4 to 20) mA,
DIGITAL
6 isolated digital input, 24 Vdc, programmable functions .
OUTPUTS
(CC11 board)
ANALOG
Two isolated outputs (0 to 10) V, RL ≥ 10 kΩ (maximum load), 0 to 20 mA / 4 to
20 mA (RL ≤ 500 Ω) resolution: 11 bits, programmable functions.
RELAY 3 relays with NO/NC contacts, 240 Vac, 1 A, programmable functions.
SAFETY PROTECTION
Output overcurrent/short-circuit.
Under/overvoltage.
Overtemperature.
Braking resistor overload.
IGBT overload.
Motor overload.
External fault / alarm.
CPU or memory fault.
Output phase-ground short-circuit.