WEG CFW-11 User Manual - page 112
Technical Specifications
8
8-6 | CFW-11
8.2 ELECTRONICS/GENERAL DATA
Control
Method
Voltage source
Type of control:
- V/f (Scalar)
- VVW: Voltage Vector Control
- 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 (switching frequency of 2.5 kHz and 5 kHz), 0.25 ms (switching
frequency = 2 kHz)
- flux regulator: 0.4 ms (switching frequency of 2.5 kHz and 5 kHz), 0.5 ms (switching frequency
= 2 kHz)
- speed regulator / speed measurement: 1.2 ms
Output
frequency
0 to 3.4 x rated motor frequency (P0403). The rated frequency is programmable from 0 Hz to 300 Hz
in the scalar mode and from 30 Hz to 120 Hz in the vector mode
Output frequency limits as a function of the switching frequency:
- 125 Hz (switching frequency = 1.25 kHz)
- 200 Hz (switching frequency = 2 kHz)
- 250 Hz (switching frequency = 2.5 kHz)
- 500 Hz (switching frequency = 5 kHz)
Performance
Speed control
V/f (Scalar):
Regulation (with slip compensation): 1 % of the rated speed
Speed variation range: 1:20
VVW:
Regulation: 1 % of the rated speed
Speed variation range: 1:30
Sensorless (P0202 = 3 induction motor):
Regulation: 0.5 % of the rated speed
Speed variation range: 1:100
Vector with Encoder (P0202 = 4 induction motor o P0202 = 6 permanent magnet):
Regulation:
±0.01 % of the rated speed with a 14-bits 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-bits analog input (CC11)
Speed variation range: 1:1000
Torque control
Range: 10 to 180 %, regulation: ±5 % of the rated torque (P0202 = 4, 6 or 7)
Range: 20 to 180 %, regulation: ±10 % of the rated torque (P0202 = 3, above 3 Hz)
Inputs
(CC11 Board)
Analog
2 isolated differential inputs; resolution of AI1: 12 bits, resolution of AI2: 11bits + 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, programmable functions
Digital
6 isolated digital inputs, 24 Vdc, programmable functions
Outputs
(CC11 Board)
Analog
2 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 relay outputs with NA/NF (NO/NC), 240 Vac, 1 A, programmable functions
Safety
Protection
Output overcurrent/short-circuit
Under/Overvoltage
Phase loss
Overtemperature
Braking resistor overload
IGBTs overload
Motor overload
External fault/alarm
CPU or memory fault
Output phase-ground short-circuit
Integral keypad
(HMI)
Standard
keypad
9 operator keys: Start/Stop, Up arrow, Down arrow, Direction of rotation, Jog, Local/Remote, Right
soft key and Left soft key
Graphical LCD display
View/edition of parameters
Indication accuracy:
- current: 5 % of the rated current
- speed resolution: 1 rpm
Possibility of remote mounting
Enclosure
IP20
Standard
IP00
Special DC hardware
IP54
Back of the inverter (external part for flange mounting)
(1)
PC connection
for inverter
programming
USB connector
USB standard Rev. 2.0 (basic speed)
Type B (device) USB plug
Interconnection cable: standard host/device shielded USB cable
(1) They need special hardware H1.