Modified Functions; Programming Basic Instructions - Incompatibility Between Parameters; Inverter Model And Accessories Identification; Torque Control - WEG CFW-11 Programming Manual

PM Vector Control

21.2.3 Modified Functions

Almost all the functions presented in this manual remain active when the options 6 or 7 are programmed in
P0202. The functions no longer active or that suffered any modification are described in the
PROGRAMMING BASIC INSTRUCTIONS – INCOMPATIBILITY BETWEEN PARAMETERS on page 21-4
Section 21.9 FAULTS AND ALARMS on page
Neither are the inactive functions (e.g., running the self-tuning - P0408), nor the parameters associated to those
functions (e.g., I/f control - P0182 and P0183), visualized on the HMI.
21.3 PROGRAMMING BASIC INSTRUCTIONS – INCOMPATIBILITY BETWEEN PARAMETERS
Refer to Section 5.7 INCOMPATIBILITY BETWEEN PARAMETERS on page

21.4 INVERTER MODEL AND ACCESSORIES IDENTIFICATION

P0297 – Switching Frequency
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
Refer to the allowed current for switching frequencies different from the default, in the tables available in
chapter 8 - Technical Specifications, of the CFW-11 user's manual.
The inverter switching frequency can be adjusted according to the needs of the application.
Higher switching frequencies imply in lower motor acoustic noise, however, the selection of the switching frequency results
in a compromise between the motor acoustic noises, the losses in the inverter IGBTs and the maximum allowed currents.
The reduction of the switching frequency reduces the earth leakage current, being able to avoid the actuation of the
faults F074 (Ground Fault) or F070 (Output Overcurrent/Short Circuit).
Note: The option 0 (1.25 kHz) is only allowed for the V/f or VVW control modes (P0202 = 0, 1, 2 or 5).
Option 3 (10 kHz) is not allowed in the PM control mode (P0202 = 7)

21.5 TORQUE CONTROL

It is possible to use the inverter to control the motor torque when in vector mode. One of the configurations consists in
keeping the speed regulator saturated and the other in selecting between torque and speed control through a digital input.
21
21-4
0 = 1.25 kHz
1 = 2.5 kHz
2 = 5.0 kHz
3 = 10.0 kHz
4 = 2 kHz
CFG
01 PARAMETER GROUPS
42 Inverter Data
21-18.
Section 21.3
5-12.
Factory According
Setting: to inverter
model
to