WEG CFW-11 RB User manual

Regenerative Frequency Converter
CF W-11 RB
Motors | Automation | Energy | Transmission & Distribution | Coatings
User’s Manual

User’s Manual
Series: CFW-11 RB
Language: English
Document Nº: 10005022198 / 01
Models: 142...211 A / 220...230 V
105...760 A / 380...480 V
53...472 A / 500...690 V
Publication Date: 08/2022

Summary of Reviews
The table below describes the revisions made to this manual.
Version Review Description
-R00 First edition
-R01 General review

Contents
1 SAFETY INSTRUCTIONS ....................................................................... 1-1
1.1 SAFETY WARNINGS IN THE MANUAL............................................................................................1-1
1.2 SAFETY WARNINGS IN THE PRODUCT .........................................................................................1-1
1.3 PRELIMINARY RECOMMENDATIONS ............................................................................................1-1
2 GENERAL INSTRUCTIONS .................................................................... 2-1
2.1 ABOUT THE MANUAL ......................................................................................................................2-1
2.2 TERMS AND DEFINITIONS USED IN THE MANUAL......................................................................2-1
2.3 ABOUT THE CFW-11 RB ..................................................................................................................2-3
2.4 IDENTIFICATION LABELS FOR THE CFW-11 RB...........................................................................2-9
2.5 CFW-11 RB MODEL SPECIFICATION (SMART CODE) ................................................................2-12
2.6 RECEIVING AND STORAGE ...........................................................................................................2-13
3 INSTALLATION AND CONNECTION...................................................... 3-1
3.1 MECHANICAL INSTALLATION ........................................................................................................3-1
3.1.1 Installation Environment .........................................................................................................3-1
3.1.2 Mounting Considerations........................................................................................................3-2
3.1.3 Cabinet Mounting ....................................................................................................................3-7
3.1.4 Installation of the Converter Hoisting Eyes - Frame Size E.................................................3-8
3.1.5 Access to the Control and Power Terminal Strips................................................................3-9
3.1.6 Removal of the Cable Passage Plate - Frame Size E.........................................................3-11
3.1.7 HMI Installation at the Cabinet Door or Command Panel
(Remote HMI) ..................................................................................................................................3-11
3.2 ELECTRICAL INSTALLATION.........................................................................................................3-12
3.2.1 Identification of the Power and Grounding Terminals........................................................3-12
3.2.2 Pre-charge Circuit .................................................................................................................3-15
3.2.3 Power/Grounding Wiring and Fuses....................................................................................3-17
3.2.4 Power Connections ...............................................................................................................3-25
3.2.4.1 Input Connections .....................................................................................................3-26
3.2.5 Grounding Connections ........................................................................................................3-26
3.2.6 Input Filter ..............................................................................................................................3-27
3.2.6.1 Basic Definitions........................................................................................................3-27
3.2.6.2 How to Specify the Filter Model...............................................................................3-28
3.2.7 Synchronism...........................................................................................................................3-29
3.2.8 Control Connections .............................................................................................................3-30
3.2.9 Typical Control Connection ..................................................................................................3-33
3.3 INSTALLATION ACCORDING TO THE EUROPEAN DIRECTIVE OF ELECTROMAGNETIC
COMPATIBILITY ........................................................................................................................................3-34
3.3.1 Conformal Installation...........................................................................................................3-34
3.3.2 Standard Definitions..............................................................................................................3-35
3.3.3 Emission and Immunity Levels ............................................................................................3-36
3.3.4 RFI Filters ..............................................................................................................................3-37
4 HMI........................................................................................................... 4-1
4.1 INTEGRAL KEYPAD - HMI - CFW-11 RB ........................................................................................4-1
4.2 PARAMETERS ORGANIZATION.......................................................................................................4-4

Contents
5 FIRST TIME POWER-UP AND START-UP............................................. 5-1
5.1 PREPARATIONS FOR THE START-UP ............................................................................. 5-1
5.1.1 Procedures for the First Time Power-up/Start-up ........................................ 5-1
5.2 START-UP........................................................................................................................... 5-2
5.2.1 Password Setting in P0000.............................................................................. 5-2
5.2.2 Oriented Start-Up............................................................................................. 5-2
5.3 SETTING DATE AND TIME................................................................................................ 5-4
5.4 BLOCKING PARAMETERS MODIFICATION.................................................................... 5-4
5.5 HOW TO CONNECT TO A PC ........................................................................................... 5-5
5.6 FLASH MEMORY MODULE .............................................................................................. 5-5
6 TROUBLESHOOTING AND MAINTENANCE ........................................ 6-1
6.1 OPERATION OF THE FAULTS AND ALARMS.................................................................. 6-1
6.2 FAULTS, ALARMS, AND POSSIBLE CAUSES ................................................................. 6-2
6.3 SOLUTIONS FOR THE MOST FREQUENT PROBLEMS................................................. 6-4
6.4 INFORMATION FOR CONTACTING TECHNICAL SUPPORT ......................................... 6-4
6.5 PREVENTIVE MAINTENANCE .......................................................................................... 6-4
6.5.1 Cleaning Instructions ............................................................................................... 6-5
7 OPTION KITS AND ACCESSORIES....................................................... 7-1
7.1 OPTION KITS ..................................................................................................................... 7-1
7.1.1 24 Vdc External Control Power Supply................................................................... 7-1
7.2 ACCESSORIES .................................................................................................................. 7-2
8 TECHNICAL SPECIFICATIONS.............................................................. 8-1
8.1 POWER DATA ....................................................................................................................................8-1
8.2 ELECTRONICS/GENERAL DATA .....................................................................................................8-7
8.2.1 Codes and Standards..............................................................................................................8-7
8.3 MECHANICAL DATA .........................................................................................................................8-8

1
CFW-11 RB | 1-1
Safety Instructions
1 SAFETY INSTRUCTIONS
This manual provides information for the proper installation and operation of the regenerative frequency converter
CF W-11 RB.
Only trained and qualified personnel should attempt to install, start-up, and troubleshoot this type of equipment.
1.1 SAFETY WARNINGS IN THE MANUAL
The following safety warnings are used in this manual:
DANGER!
The procedures recommended in this warning have the purpose of protecting the user against death,
serious injuries and considerable material damage.
ATTENTION!
The procedures recommended in this warning have the purpose of avoiding material damage.
NOTE!
The text intents to supply important information for the correct understanding and good operation of
the product.
1.2 SAFETY WARNINGS IN THE PRODUCT
The following symbols are attached to the product and require special attention:
High voltages are present.
Components sensitive to electrostatic discharge.
Do not touch them.
Mandatory connection to the protective ground (PE).
Connection of the shield to the ground.
Hot surface.
1.3 PRELIMINARY RECOMMENDATIONS
DANGER!
Only qualified personnel familiar with the CFW-11 RB regenerative frequency converter and associated
equipment should plan or implement the installation, start-up and subsequent maintenance of this
equipment.
These personnel must follow all the safety instructions included in this Manual and/or defined by local
regulations.
Failure to comply with these instructions may result in death, serious injury and equipment damage.

1
Safety Instructions
1-2 | CFW-11 RB
NOTE!
For the purposes of this manual, qualified personnel are those trained and able to:
1. Install, ground, power-up and operate the CFW-11 RB according to this manual and the effective
legal safety procedures.
2. Use protection equipment according to the established regulations.
3. Provide first aid.
ATTENTION!
When in operation, electric energy systems – such as transformers, converters, motors and cables –
generate electromagnetic fields (EMF), posing a risk to people with pacemakers or implants who stay in
close proximity to them. Therefore, those people must stay at least 2 meters away from such equipment.
DANGER!
Always disconnect the main power supply before touching any electrical component associated to
the converter.
Several components can remain charged with high voltages and/or in movement (fans) even after the
AC power supply is disconnected or switched off.
Wait at least 10 minutes to assure a total discharge of the capacitors.
Always connect the equipment frame to the protective earth (PE) at the suitable connection point.
ATTENTION!
Electronic boards have components sensitive to electrostatic discharges. Do not touch directly on
components or connectors. If necessary, touch the grounded metallic frame before or use an adequate
grounded wrist strap.
Do not execute any applied potential test on the CFW-11 RB!
If necessary, contact WEG.
NOTE!
Regenerative frequency converter may interfere with other electronic equipment. In order to reduce
these effects, take the precautions recommended in the Chapter 3 INSTALLATION AND CONNECTION
on page 3-1.
NOTE!
Read this manual completely before installing or operating the converter.
ATTENTION!
The operation of this equipment requires installation instructions and detailed operation provided in the
user manual, programming manual and manuals/guides for kits and accessories. The user manual and
the parameters quick reference are supplied in a hard copy together with the converter. The user guides
are also provided in a hard copy along with the accessories. The other manuals are they available for
download on the website: www.weg.net.

2
General Information
CFW-11 RB | 2-1
2 GENERAL INSTRUCTIONS
2.1 ABOUT THE MANUAL
This manual presents how to install, to start-up, the main characteristics and how to troubleshoot the most common
problems of the CFW-11 RB converter series.
For information on other functions, accessories and operation conditions please refer to the following manuals:
Programming Manual, with a detailed description of the parameters and advanced functions of the CFW-11 RB.
I/O Expansion Module Manual.
These manuals are available for download on the website: www.weg.net.
2.2 TERMS AND DEFINITIONS USED IN THE MANUAL
Regenerative Frequency Converter: three-phase switching frequency converter “boost type” (amplifier) that
converts the AC voltage from the power supply to a DC voltage (DC Link). It has the capability of absorbing the
energy of the power supply (AC) or to recover the energy back to the power supply, being used as a DC voltage
source to supply voltage to several output inverter.
Output Inverter: frequency inverter fed by the DC Link bus bar supplied by the regenerative converter. It is
responsible for the motor control.
Normal Duty Cycle (ND): converter duty cycle that defines the maximum continuous operation current (Inom-ND)
and overload current conditions (110 % for 1 minute). The ND cycle is selected by setting P0298 (Application) = 0
(Normal Duty (ND)). The inverter overload conditions are reflected in the regenerative converter.
Inom-ND:converter rated current for use with the normal duty (ND) cycle. Overload: 1.1 x Inom-ND / 1 minute.
Heavy Duty Cycle (HD): converter duty cycle that defines the maximum continuous operation current (Inom-HD)
and overload current conditions (150 % for 1 minute). The HD cycle is selected by setting P0298 (Application) = 1
(Heavy Duty (HD)). The inverter overload conditions are reflected in the regenerative converter.
Inom-HD: converter rated current for use with the heavy duty (HD) cycle.
Overload: 1.5 x Inom-HD / 1 minute.
Pre-charge Circuit: charges the DC Link capacitors with limited current, which avoids higher peak currents at
the converter power-up.
Link DC: converter intermediate circuit; DC voltage obtained from the AC input voltage rectification or from an
external power supply; feeds the output IGBTs converter bridge.
Power Modules U, V, and W: set of two IGBTs of the regenerative converter input phases U, V, and W.
IGBT: Insulated Gate Bipolar Transistor; basic component of the power modules U, V and W. The IGBT works as
an electronic switch in the saturated (closed switch) and cut-off (open switch) modes.
NTC: resistor which resistance value in ohms decreases proportionally to the temperature increase; used as a
temperature sensor in power modules.
HMI: Human Machine Interface: it is a device that allows the visualization and modification of the converter
parameters. The CFW-11 RB HMI presents keys for the regenerative converter control, navigation keys and a
graphic LCD display.
Flash Memory: non-volatile memory that can be electronically written and erased.
Ram Memory: Random Access Memory (volatile).

2
General Information
2-2 | CFW-11 RB
USB: Universal Serial Bus; is a serial bus standard that allows devices to be connected using the ”Plug and Play”
concept.
PE: Protective Earth.
RFI Filter: Radio-Frequency Interference Filter for interference reduction in the Radio-Frequency range.
PWM: Pulse Width Modulation; pulsed voltage at the input of the regenerative converter.
Switching Frequency: frequency of the IGBTs switching, normally expressed in kHz.
General Enable: when activated, the converter controls the voltage at the DC Link. When deactivated, this
function immediately blocks the PWM pulses. The General Enable function may be controlled through a digital
input set to this function.
Heatsink: metal device designed to dissipate the heat generated by the power semiconductors.
Amp, A: ampères.
°C: celsius degree.
°F: Fahrenheit degree.
AC: alternated current.
DC: direct current.
CFM: Cubic Feet per Minute; unit of flow.
cm: centimeter.
ft: foot.
hp: horse power = 746 Watts; unit of power, used to indicate the mechanical power of electrical motors.
Hz: hertz.
in: inch.
kg: kilogram = 1000 grams.
kHz: kilohertz = 1000 Hertz.
l/s: liters per second.
lb: pound.
m: meter.
mA: miliampère = 0.001 Ampère.
min: minute.
mm: millimeter.
ms: millisecond = 0.001 seconds.
N.m.: newton meter; unit of torque.
rms: root mean square; effective value.

2
General Information
CFW-11 RB | 2-3
rpm: revolutions per minute; unit of speed.
s: second.
V: volts.
Ω: ohms.
2.3 ABOUT THE CFW-11 RB
The regenerative frequency converter is a bidirectional three-phase boost type AC/DC converter that generates
higher DC voltage than the line peak voltage. These converter are commonly known as AFE (Active Front End)
drives. The CFW-11 RB line utilizes the “RB” sulfix which states for Regenerative Braking because it has the natural
capacity of allowing the energy to flow from the converter to the power supply when the motor is braking. The DC
voltage generated by the regenerative converter is used to feed other converter power units that are controlling
three-phase motors.
The CFW-11 RB regenerative converter is a high performance product that allows three-phase power supply
rectification with the following advantages:
Low input current harmonic distortion.
Capacity of recovering energy back to the power supply (regeneration) allowing high braking torque levels.

2
General Information
2-4 | CFW-11 RB
Feedback
- voltage
- current
Pre-
Charge
Input
filter
Power
supply
PE
Flash
memory
module
MMF-03
Digital
inputs
(DI1 to DI6)
Electronics power supplies and
interface between power and control
USB
CSR
HMI
CC11RB
Control
board
with
CPU
32 bit
"RISC"
Analog outputs
(AO1 and AO2)
Digital outputs
DO1 (RL1) to
DO3 (RL3)
HMI (remote)
Accessories
I/O expansion
(Slot 1 - white)
Synchronism
transformer
Analog inputs
(AI1 to AI2)
Capac.
Bank
DC Link
Power
Control
DC+
DC-
Figure 2.1: CFW-11 RB block diagram
NOTE!
Additional itens are need for the assembly of the complete unit, such as output inverter, DC fuses in
the DC link bus bar connection, external pre-charge circuit and filter.

2
General Information
CFW-11 RB | 2-5
NOTE!
It is not necessary to add a current transformer (CT) for output short circuit protection to the ground
since each CFW-11 RB module has its own internal protection.
A
B
C
D
E
H
I
J
H
G
F
A - Keypad (HMI)
B - Control rack cover
C - CC11 control board
D - Flash memory module MMF-03
E - Control accessory module (refer to the Section 7.2
ACCESSORIES on page 7-2)
F - Bottom front cover
G - Heatsink fan
H - Mounting supports (for through the wall mounting)
I - Hoisting eye
J - Rear part of the converter (external part for flange mounting)
Figure 2.2: Main components of the CFW-11 RB - frame size E

2
General Information
2-6 | CFW-11 RB
A
BC
D
E
H
I
J
H
G
F
E
A - Keypad (HMI)
B - Control rack cover
C - CC11 control board
D - Flash memory module MMF-03
E - Control accessory module
F - Bottom front cover
G - Heatsink fan
H - Mounting supports (for surface mounting)
I - Hoisting eye
J - Rear part of the converter (external part for flange mounting)
Figure 2.3: Main components of the CFW-11 RB - frame sizes F and G

2
General Information
CFW-11 RB | 2-7
2
3
1
1 - USB connector
2 - USB led
Off: without USB connection
On/blinking: USB communication active
3 - Status led
Green: normal operation without fault or alarm
Yellow: in the alarm condition
Blinking red: in the fault condition
Figure 2.4: leds and USB connector

2
General Information
2-8 | CFW-11 RB
12
3
1 - USB connector
2 - USB led
Off: without USB connection
On/blinking: USB communication active
3 - Status led
Green: normal operation without fault or alarm
Yellow: in the alarm condition
Blinking red: in the fault condition
Figure 2.5: leds and USB connector

2
General Information
CFW-11 RB | 2-9
2.4 IDENTIFICATION LABELS FOR THE CFW-11 RB
There are two identification labels, one complete nameplate is affixed at the side of the converter and a simplified
label is located under the keypad. The label under the keypad allows the identification of the most important
characteristics of the converter even if they are mounted side-by-side.
1
2
1 - Nameplate affixed to the side of the heatsink
2 - Nameplate under the keypad
Figure 2.6: Location of the identification labels

2
General Information
2-10 | CFW-11 RB
MOD.: EUCFW110601T40RBZ
MAT.: 12784255
OP.: 8888888888
PESO/WEIGHT: 162 kg (357 lb)
SERIAL#.: 8888888888
MAX. TA: 45 °C (113 °F)
LINK DC
FABRICADO NO BRASIL
HECHO EN BRASIL
MADE IN BRAZIL
WEG, CP40 - 89256-900
Jaraguá do Sul - Brazil
17 N
7909158 764266
CFW-11 RB model
WEG part number
Rated input data (voltage,
number of power phases,
rated currents for use with
Normal Duty (ND) and Heavy
Duty (HD) cycles, frequency)
Current specifications for use
with the Normal Duty (ND) cycle
Current specifications for
use with the Heavy Duty (HD)
cycle
Maximum surrounding air
temperature
Serial number
Manufacturing date (17 corresponds
to the week and N to the year)
Rated output data (voltage, number
of power phases, rated currents
for use with Normal Duty (ND) and
Heavy Duty (HD) cycles, overload
currents for 1min and 3 s, and
frequency range)
1.42 X LINE - DC
691 A
592 A
-Hz
A (ND)
60s / 3s
A (HD)
60s / 3s
AC TERMINALS
BORNES CA
380 - 480 V
601 A
660 A / 900 A
515 A
773 A / 1030 A
50 - 60 Hz
(a) Nameplate affixed at the side of the converter
EUCF W110 601T40RBZ
12784255
SERIAL#:
17 N
Manufacturing date
(17 corresponds to
week and N to year)
CFW-11 RB model
WEG part number
Serial number
(b) Label located under the keypad
Figure 2.7: (a) and (b) - Identification labels for 220...230 V and 380...480 V models

2
General Information
CFW-11 RB | 2-11
MOD.: SACFW110170T60RBZ
MAT.: 12551189
OP.: 8888888888
PESO/WEIGHT: 115 kg (253 lb)
SERIAL#.: 8888888888
MAX. TA: 45 °C (113 °F)
LINE
LINEA
REDE
OUTPUT
SALIDA
SAÍDA
LINE
LINEA
REDE
OUTPUT
SALIDA
SAÍDA
500...600
3~ VAC
660...690
3~ VAC
0-REDE
3~
0-REDE
3~
147 A170 A 170 A
187 A
255 A
147 A
162 A
221 A
150 A
225 A
300 A
150 A 127 A
191 A
254 A
127 A
VAC
A (ND)
60 s
3 s
A (HD)
60 s
3 s
Hz 50/60 Hz 50/60 Hz0 - 300 Hz 0 - 300 Hz
FABRICADO NO BRASIL
HECHO EN BRASIL
MADE IN BRAZIL
WEG, CP40 - 89256-900
Jaraguá do Sul - Brazil
17 N
7909158 266388
CFW-11 RB model
WEG part number
Rated input data (voltage,
number of phases, rated
currents for operation with
ND and HD overload cycles,
frequency)
Current specifications
for operation with normal
overload cycle (ND)
Current specifications
for operation with heavy
overload cycle (HD)
Maximum surrounding air
temperature
Serial number
Manufacturing date (17
corresponds to the week and
N to the year)
Rated output data (voltage,
number of phases, rated
currents for operation with
ND and HD overload cycles,
overload currents for 1 min
and 3 s, frequency range)
(a) Nameplate affixed to the side of the converter
SACF W110170T60RBZ
12551189
SERIAL#:
17 N
Manufacturing date
(17 corresponds to
week and N to year)
CFW-11 RB model
WEG part number
Serial number
(b) Nameplate located under the keypad
Figure 2.8: (a) and (b) - Identification labels for 500...690 V models

2
General Information
2-12 | CFW-11 RB
2.5 CFW-11 RB MODEL SPECIFICATION (SMART CODE)
In order to specify the CFW-11 RB, it is necessary to fill in the desired voltage and current values in the respective
fields for the nominal supply voltage and the rated input current for normal duty (ND) cycle in the smart code
according to the example on Table 2.1 on page 2-12.
Table 2.1: Smart code
Converter Model Available Option Kits
Refer to Chapter 8 TECHNICAL SPECIFICATIONS on page 8-1 for the CFW-11 RB list of models and for the complete technical specifications
Refer to the Chapter 7 OPTION KITS AND ACCESSORIES on page 7-1 for more details on the options
Example BR CFW11 0370 T 4 O RB _ _ _ _ _ _ Z
Field description
Market identification (defines the manual language and the factory settings)
WEG 11 frequency converter series
Rated current for Normal Duty (ND) cycle
Number of power phases
Power supply voltage
Option kit Braking External 24
Vdc control power supply
Special hardware
Special software
Character that identifies the end of the code
Available options
2 characteres Possible
options presented in Table 2.2 on page 2-13
T= threephase
2= 220...230 V 4= 380...480 V 6= 660...690 V
O= product with option kit
RB = Regenerative Braking
Blank = standard (not available) W= with external 24 Vdc control power supply
Blank = standard H1= special hardware n°1
Blank = standard S1 = special software n°1

2
General Information
CFW-11 RB | 2-13
Table 2.2: Nominal currents at normal duty cycle (ND)
T2 T4 T6
220...230 V 380...480 V 500...600 V 660...690 V
0142 = 142 A 0105 = 105 A 0053 = 53 A 0053 = 46 A
0180 = 180 A 0142 = 142 A 0063 = 63 A 0063 = 54 A
0211 = 211 A 0180 = 180 A 0080 = 80 A 0080 = 73 A
0211 = 211 A 0107 = 107 A 0107 = 100 A
0242 = 242 A 0125 = 125 A 0125 = 108 A
0312 = 312 A 0150 = 150 A 0150 = 130 A
0370 = 370 A 0170 = 170 A 0170 = 147 A
0477 = 477 A 0216 = 216 A 0216 = 195 A
0515 = 515 A 0289 = 289 A 0289 = 259 A
0601 = 601 A 0315 = 315 A 0315 = 259 A
0720 = 720 A 0365 = 365 A 0365 = 312 A
0760 = 760 A 0435 = 435 A 0435 = 365 A
0472 = 472 A 0472 = 427 A
2.6 RECEIVING AND STORAGE
The CFW-11 RB converters from the frame sizes E, F and G models are supplied packed in wooden boxes.
There is an identification label affixed to the outside of the package, identical to the one affixed to the side of the
converter CFW-11 RB.
To open the package:
1. Remove the package front cover.
2. Take out the polystyrene foam protection.
Verify whether:
1. The CFW-11 RB nameplate corresponds to the purchased model.
2. Any damage occurred during transportation.
If any problems are detected, contact the carrier immediately.
If the CFW-11 RB is not installed soon, store it in a clean and dry location (temperature between -25 °C and 60
°C (-13 °F and 140 °F)), with a cover to prevent dust accumulation inside it.
ATTENTION!
When the converter is stored for a long period, it becomes necessary to perform the capacitor reforming.
Verify the procedure on Section 6.5 PREVENTIVE MAINTENANCE on page 6-4 .