WEG CFW-11 Series User manual

Motors | Automation | Energy | Transmission & Distribution | Coatings
Frequency Inverter
CFW-11
User's Manual

04/2014
Series: CFW-11
Language: English
Document: 10000784107 / 03
Models: 242...720 A / 380...480 V
Models with Special DC Hardware:
242...720 A / 380...480 V
FREQUENCY
INVERTER
MANUAL

2
Revision Description Chapter
1 First edition -
2 Correction of table 8.1 8
3 General revision -
Summary of Revisions

Summary
CHAPTER 1
Safety Instructions
1.1 Safety Warnings in the Manual.....................................................................................................1-1
1.2 Safety Warnings in the Product.....................................................................................................1-1
1.3 Preliminary Recommendations .....................................................................................................1-2
CHAPTER 2
General Information
2.1 About the Manual ......................................................................................................................2-1
2.2 Terms and Definitions used in the Manual .....................................................................................2-1
2.3 About the CFW-11 .....................................................................................................................2-4
2.4 CFW-11 Identification Labels.......................................................................................................2-8
2.5 Receiving and Storage ..............................................................................................................2-11
CHAPTER 3
Installation and Connection
3.1 Mechanical Installation ...............................................................................................................3-1
3.1.1 Environmental Conditions ..................................................................................................3-1
3.1.2 Positioning and Mounting ..................................................................................................3-1
3.1.3 Cabinet Mounting .............................................................................................................3-4
3.1.4 Access to the Control and Power Terminals..........................................................................3-5
3.1.5 HMI Installation at the Cabinet Door or Command Panel (Remote HMI) ................................3-6
3.2 Electrical Installation ...................................................................................................................3-6
3.2.1 Identification of the Power Terminals and Grounding Points...................................................3-6
3.2.2 Power / Grounding Wiring and Fuses..................................................................................3-9
3.2.3 Power Connections..........................................................................................................3-12
3.2.3.1 Input Connections ..............................................................................................3-13
3.2.3.1.1 IT Networks ........................................................................................3-13
3.2.3.1.2 Pre-charge Circuit Fuses ......................................................................3-14
3.2.3.2 Dynamic Braking................................................................................................3-14
3.2.3.3 Output Connections ...........................................................................................3-15
3.2.4 Grounding Connections ..................................................................................................3-17
3.2.5 Control Connections .......................................................................................................3-18
3.2.6 Typical Control Connections.............................................................................................3-22
3.3 Installation According to the European Directive of Electromagnetic Compatibility..........................3-25
3.3.1 Conformal Installation .....................................................................................................3-25
3.3.2 Standard Definitions ........................................................................................................3-25
3.3.3 Emission and Immunity Levels...........................................................................................3-26
CHAPTER 4
KEYPAD (HMI)
4.1 Integral Keypad - HMI-CFW11 ....................................................................................................4-1
4.2 Parameter Structure.....................................................................................................................4-4

Summary
CHAPTER 5
First Time Power-Up and Start-Up
5.1 Start-Up Preparation ...................................................................................................................5-1
5.2 Start-Up.....................................................................................................................................5-2
5.2.1 P0000 Password Setting.....................................................................................................5-2
5.2.2 Oriented Start-Up .............................................................................................................5-3
5.2.3 Basic Application Parameter Settings...................................................................................5-5
5.3 Date and Time Setting.................................................................................................................5-8
5.4 Parameter Change Prevention......................................................................................................5-8
5.5 How to Connect a PC .................................................................................................................5-9
5.6 Flash Memory Module ................................................................................................................5-9
CHAPTER 6
Troubleshooting and Maintenance
6.1 Operation of Faults and Alarms ...................................................................................................6-1
6.2 Faults, Alarms, and Possible Causes.............................................................................................6-2
6.3 Solutions for the Most Frequent Problems......................................................................................6-8
6.4 Information Necessary for Contacting Technical Support ................................................................6-9
6.5 Preventive Maintenance...............................................................................................................6-9
6.5.1 Cleaning Instructions .......................................................................................................6-10
CHAPTER 7
Option Kits and Accessories
7.1 Option Kits ................................................................................................................................7-1
7.1.1 Safety Stop According to EN 954-1 Category 3 (Pending Certification) ..................................7-1
7.1.2 24 Vdc External Control Power Supply.................................................................................7-2
7.2 Accessories ................................................................................................................................7-3
CHAPTER 8
Technical Specifications
8.1 Power data.................................................................................................................................8-1
8.2 Electronics/General Data ............................................................................................................8-5
8.2.1 Codes and Standards ........................................................................................................8-6
8.3 Mechanical Data........................................................................................................................8-7

Safety Instructions
1-1
1
SAFETY INSTRUCTIONS
This manual provides information for the proper installation and
operation of the CFW-11 frequency inverter.
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 dead,
serious injuries and considerable material damage.
DANGER!
Les procédures concernées par cet avertissement sont destinées à protéger l'utilisateur contre des
dangers mortels, des blessures et des détériorations matérielles importantes.
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.

Safety Instructions
1-2
1
Hot surface.
1.3 PRELIMINARY RECOMMENDATIONS
DANGER!
Only qualified personnel familiar with the CFW-11 frequency inverter 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.
DANGER!
Seulement personnes avec la qualification adéquate et familiarisation avec le CFW-11 et équipements
associés doivent planifiquer ou implementer l'installation, mise en marche, operation et entretien de
cet équipement.
Cettes personnes doivent suivre toutes les instructions de sécurités indiquées dans ce manuel, et/ou
définies par normes locales.
L'inobservance des instructions de sécurité peut résulter en risque de vie et/ou dommages de cet
équipement.
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 according to this manual and the effective
legal safety procedures;
2. Use protection equipment according to the established regulations;
3. Provide first aid.
DANGER!
Always disconnect the main power supply before touching any electrical component associated to
the inverter.
Several components can remain charged with high voltages or remain in movement (fans) even after
the AC power 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 protection earth (PE) at the suitable connection point.

Safety Instructions
1-3
1
Do not perform any withstand voltage test!
If necessary, consult WEG.
DANGER!
Débranchez toujours l'alimentation principale avant d'entrer en contact avec un appareil électrique
associé au variateur.
Plusieurs composants peuvent rester chargés à un potentiel électrique élevé et/ou être en mouvement
(ventilateurs), même après la déconnexion ou la coupure de l'alimentation en courant alternatif.
Attendez au moins 10 minutes que les condensateurs se déchargent complètement.
Raccordez toujours la masse de l'appareil à une terre protectrice (PE).
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.
NOTE!
Frequency Inverter may interfere with other electronic equipment. In order to reduce these effects,
take the precautions recommended in the chapter 3 - Installation and Connections.
NOTE!
Read the User Manual completely before installing or operating the inverter.
ATTENTION!
The operation of this equipment requires installation instructions and detailed operation provided
in the user manual, programming manual and communication manuals. A hard copy of the user
manual, quick parameters reference guide and for the kits and accessories are provided together
with the equipment. Other manuals are provided only in electronic format available in the CD-ROM
supplied with the inverter or it can be obtained at WEG website - www.weg.net. The CD-ROM should
always be kept with the equipment. A hard copy of the files available in the CD-ROM can be ordered
through a local WEG agent.

Safety Instructions
1-4
1

General Information
2-1
2
GENERAL INFORMATION
2.1 ABOUT THE MANUAL
This manual exposes how to install, to start-up in V/f (scalar)
mode, the main characteristics and shows how to troubleshoot
the most common problems of the CFW-11 inverter series frame
sizes F and G models.
It is also possible to operate the CFW-11 in VVW, Sensorless Vector and Vector with Encoder modes. For more
details on the start-up in the other control modes, refer to the Programming Manual.
For information on other functions, accessories and operation conditions, consult the following manuals:
Programming Manual, with a detailed description of the CFW-11 parameters and advanced functions.
Incremental Encoder Interface Module Manual.
I/O Expansion Module Manual.
RS-232/RS-485 Serial Communication Manual.
CANopen Slave Communication Manual.
Anybus-CC Communication Manual.
These manuals are included on the CD supplied with the inverter or can be downloaded from the WEG
website at - www.weg.net.
2.2 TERMS AND DEFINITIONS USED IN THE MANUAL
Normal Duty Cycle (ND): The duty cycle that defines the steady state current value I nom-ND and an overload
of 110 % during 1 minute. It is selected by programming P0298 (Application) = 0 (Normal Duty – ND). It must
be used for driving motors that are not subject in that application to high torques with respect to their rated
torque, when operating at constant speed, during start, acceleration or deceleration.
I nom-ND: Inverter rated current for use with normal duty cycle (ND = Normal Duty).
Overload: 1.1 x I nom-ND / 1 minute.
Heavy Duty Cycle (HD): The duty cycle that defines the steady state current value I nom-HD and an overload of
150 % during 1 minute. It is selected by programming P0298 (Application) = 1 (Heavy Duty – HD). It must be
used for driving motors that are subject in that application to high torques with respect to their rated torque,
when operating at constant speed, during start, acceleration or deceleration.
I nom-HD:Inverter rated current for use with heavy duty cycle (HD = Heavy Duty).
Overload: 1.5 x I nom-HD / 1 minute.
Rectier: The input circuit of the inverters that converts the input AC voltage into DC. It is made of thyristors
and power diodes.
Pre-charge circuit: It charges the DC link capacitors with a limited current, thus avoiding higher current peaks
when powering the inverter.

General Information
2-2
2
DC Link: Inverter intermediate circuit; DC voltage obtained from the rectification of the AC input voltage or
from an external power supply. It feeds the inverter output IGBT bridge.
U, V and W Arms: Set of two IGBTs forming the inverter output phases U, V and W.
IGBT: “Insulated Gate Bipolar Transistor”; It is the output inverter bridge basic component, working as an
electronic switch either in the saturated (closed switch) or in the cut off mode (open switch).
PTC: It is a resistor, whose resistance value in ohms increases proportionally to the temperature increase, being
used as temperature sensor in motors.
NTC: It is a resistor, whose resistance value in ohms decreases proportionally to the temperature increase, being
used as temperature sensor in power modules.
HMI: “Human-Machine Interface”; It is the device that allows the control of the motor, the visualization and the
modification of the inverter parameters. The CFW-11 HMI presents keys for commanding the motor, navigation
keys and a graphic LCD display.
Flash memory: It is the nonvolatile memory that can be electrically written and erased.
RAM memory: Random Access Memory (volatile).
USB: “Universal Serial Bus”; It is a serial bus standard that allows devices to be connected using the”Plug and
Play” concept.
PE: Protective Ground.
RFI lter: “Radio Frequency Interference filter”. A filter that avoids interference in the radiofrequency range.
PWM: “Pulse Width Modulation”. A pulsed voltage that feeds the motor.
Switching Frequency: It is the inverter bridge IGBTs commutation frequency, normally specified in kHz.
General enable: When activated, it accelerates the motor via acceleration ramp. When deactivated, this
function immediately blocks the PWM pulses. The general enable function can be controlled through a digital
input programmed for this function or via serial communication.
Run/Stop: Inverter function that when activated (Run) accelerates the motor with the acceleration ramp
until reaching the speed reference, and when deactivated (Stop) decelerates the motor with the deceleration
ramp down to stop. It can be commanded through a digital input programmed for that function or via serial
communication. The HMI keys (Run) and (Stop) work in a similar manner.
Heatsink: It is a metal part designed for dissipating the heat generated by the power semiconductors.
PLC: Programmable Logic Controller.
Amp, A: Ampères.

General Information
2-3
2
°C: Celsius degree.
°F: Fahrenheit degree.
AC: Alternating Current.
DC: Direct Current.
CFM: “Cubic feet per minute”; It is a flow measurement unit.
cm: Centimeter.
CV: “cheval-vapeur” = 736 Watts; Power measurement unit, normally used to indicate the mechanical power
of electric motors.
ft: Foot.
hp: “Horse Power” = 746 Watts; Power measurement unit, normally used to indicate the mechanical power
of electric 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; torque measurement unit.
rms: “Root mean square”; Effective value.
rpm: “Revolutions per minute”; Speed measurement unit.
s: Second.
V: Volts.
Ω: Ohms.

General Information
2-4
2
2.3 ABOUT THE CFW-11
The CFW-11 is a high performance Variable Frequency Drive that makes it possible the control of speed and
torque of three-phase AC induction motors. The central characteristic of this product is the “Vectrue” technology,
which presents the following advantages:
(V/f), V V W or vector control programmable in the same product;
The vector control can be programmed as “sensorless” (which means standard motors, without the need of
encoder) or vector control with motor encoder;
The “sensorless” vector control allows high torque and fast response, even at very slow speeds or during
starting;
The vector control with encoder allows very high speed accuracy and control for the entire speed range
(speed control down to 0 rpm);
The “Optimal Braking” function for the vector control allows a controlled motor braking, eliminating in some
applications the braking resistor;
The vector control “Self-Tuning” function allows the automatic setting of the regulators and control parameters,
from the identification (also automatic) of the motor and load parameters.

General Information
2-5
2
Figure 2.1 (a) - Frame sizes F and G CFW-11 block diagram Standard models with alternating current feeding
Analog
Inputs
(AI1 and AI2)
FLASH
memory
module
Digital Inputs
(DI1 to DI6)
Control power supply and interfaces
between power and control sections
USB
PC
POWER
CONTROL
CPC 11
Pre-charge
control
Motor
U/T1
R/L1
S/L2
T/L3
V/T2
W/T3
IGBT
inverter
Power
supply
RFI filter/MOVs
Three-phase
rectifier
DC+
Braking
resistor
External braking
module
(Optional)
DC-
SuperDrive G2 software
WLP software
Keypad
CC11
Control
Board with
32-bit
“RISC”
CPU
Analog Outputs
(AO1 and AO2)
Digital Outputs
DO1 (RL1) to
DO3 (RL3)
Keypad (remote)
DC link chokes
DC link capacitor
bank
Feedback:
- voltage
- current
PE PE
COMM 2
(anybus) (Slot 4)
COMM 1
(Slot 3 - green)
Encoder Interface
(Slot 2 - yellow)
I/O Expansion
(Slot 1 - white)
Accessories

General Information
2-6
2
Figure 2.1 (b) - Frame sizes F and G CFW-11 block diagram Models with DC voltage feeding (Special DC Hardware)
Analog Inputs
(AI1 and AI2)
FLASH
memory
module
Digital Inputs
(DI1 to DI6)
Control power supply and interfaces
between power and control sections
USB
PC
POWER
CONTROL
Motor
U/T1
V/T2
W/T3
IGBT
inverter
DC+
DC supply
DC-
SuperDrive G2 software
WLP software
Keypad
CC11
Control
Board with
32-bit
“RISC”
CPU
Analog Outputs
(AO1 and AO2)
Digital Outputs
DO1 (RL1) to
DO3 (RL3)
Keypad (remote)
DC link capacitor
bank
Feedback:
- voltage
- current
PE
COMM 2
(anybus) (Slot 4)
COMM 1
(Slot 3 - green)
Encoder Interface
(Slot 2 - yellow)
I/O Expansion
(Slot 1 - white)
Accessories

General Information
2-7
2
A - HMI
B - Control rack cover
C - CC11 control board
D - FLASH memory module
E - Control accessory module
F - Anybus-CC accessory module
G - Bottom front cover
H - Heatsink fan
I - Mounting supports (for surface mounting)
J - Hoisting eye
K - Rear part of the inverter (external part for flange mounting)
L - SRB2 safety stop board
Figure 2.2 - CFW11 main components
I
J
D
B
A
F
E
G
H
I
K
L
C

General Information
2-8
2
Figure 2.3 - LEDs and USB connector
2.4 CFW-11 IDENTIFICATION LABELS
There are two identification labels on the CFW-11: one complete nameplate is affixed at the side of the inverter
and a simplified label is located under the keypad. The label under the keypad allows the identification of the
most important characteristics of the inverter even if they are mounted side-by-side.
Figure 2.4 (a) and (b) - Identication labels
(a) Nameplate afxed at the side of the inverter
(b) Label located under the keypad
CFW110242T400YZ
12345678
SERIAL#: 99/99/9999 1234567980
WEG part number
CFW-11 model
Serial number
Manufacturing date (day/month/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)
Maximum ambient temperature surrounding the
inverter
Manufacturing date (day/month/year)
Serial 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
Heavy Duty (HD) cycle
Current specifications for use with the
Normal Duty (ND) cycle
CFW-11 model
WEG part number
Inverter net weight
1
3
2
USB connector
USB LED
Off: Without USB connection
On/blinking: USB communication active
Status LED
Green: Normal operation without fault or alarm
Yellow: In the alarm condition
Blinking red: In the fault condition
1
2
3

General Information
2-9
2
Figure 2.5 - Location of the identication labels
1
2
Nameplate affixed to the side of the
inverter
Label under the keypad
1
2

General Information
2-10
2
HOW TO SPECIFY THE CFW-11 MODEL (SMART CODE)
INVERTER MODEL AVAILABLE OPTION KITS (INSTALLED IN THE PRODUCT AT THE FACTORY)
Refer to the frame sizes F and G CFW-11 model list in the chapter 8,
where the technical specifications of the inverters are also presented Refer to chapter 8 to check option kit availability for each inverter model
Example BR CFW11 0242 T 4 S _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Z
Field description
Market identification (defines the manual language and the factory settings)
WEG CFW-11 frequency inverter series
Rated output current for use with the Normal Duty (ND) cycle
Number of power phases
Power supply voltage
Option kit Enclosure
protection degree
Keypad Braking RFI filter Safety stop External
24 Vdc control power supply
Special hardware
Special software
Character that identifies the code end
Available options
2 caracters
0242=211 A (HD) / 242 A (ND) 0312=242 A (HD) / 312 A (ND) 0370=312 A (HD) / 370 A (ND) 0477=370 A (HD) / 477 A (ND) 0515=477 A (HD) / 515 A (ND) 0601=515 A (HD) / 601 A (ND) 0720=560 A (HD) / 720 A (ND)
T = three- phase power supply
4=380...480 V
S = standard product O = product with option kit
Blank = standard (IP20) IP00 = Special hardware (DC)
Blank = standard keypad IC = no keypad (blind cover)
Blank = standard (no braking IGBT)
Blank = standard (with internal RFI filter)
Blank = standard (safety stop function is not available) Y = with safety stop function according to EN-954-1 category 3
Blank= standard (not available) W = with external 24 Vdc control power supply
Blank = standard DC = feeding with DC
Blank = standard S1 = special software nr. 1

General Information
2-11
2
2.5 RECEIVING AND STORAGE
The CFW-11 inverters from the frame size 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 inverter.
To open the package:
1 - Remove the package front cover;
2 - Take out the polystyrene foam protection.
Verify whether:
The CFW-11 nameplate corresponds to the purchased model;
Any damage occurred during transportation.
Report any damage immediately to the carrier that delivered your CFW-11 inverter.
If the CFW-11 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 inverter is stored for a long period, it becomes necessary to perform the capacitor reforming.
Refer to the procedure in the section 6.5 - table 6.3.