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!
Failure to follow the recommended procedures listed in this warning may result in death, serious
injury, and equipment damage.
Safety Instructions
1
ATTENTION!
Failure to follow the recommended procedures listed in this warning may result in equipment
damage.
NOTE!
This warning provides important information for the proper understanding and operation of the
equipment.
1.2 SAFETY WARNINGS IN THE PRODUCT
The following symbols are attached to the product and require special attention:
Indicates a high voltage warning.
Electrostatic discharge sensitive components.
Do not touch them.
Indicates that a ground (PE) must be connected securely.
Indicates that the cable shield must be grounded.
Indicates a hot surface warning.
1-1
1
Safety Instructions
1.3 PRELIMINARY RECOMMENDATIONS
DANGER!
Only trained personnel, with proper qualifications, and familiar with the CFW-11 and associated
machinery shall plan and implent the installation, starting, operation, and maintenance of this
equipment.
The personnel shall follow all the safety instructions described in this manual and/or defined by the
local regulations.
Failure to comply with the safety instructions may result in death, serious injury, and equipment
damage.
NOTE!
For the purpose of this manual, quali fied personnel are those trained and able to:
1. Install, ground, power-up, and operate the CFW-11 according to this manual and to the current
legal safety procedures;
2. Use the protection equipment according to the established regulations;
3. Provide first aid.
DANGER!
Always disconnect the main power supply before touching any electrical device associated with the
inverter.
Several components may remain charged with high voltage and/or in movement (fans), even after
the AC power supply has been disconnected or turned off.
Wait at least 10 minutes to guarantee the fully discharge of capacitors.
Always connect the equipment frame to the ground protection (PE).
ATTENTION!
The electronic boards contain components sensitive to electrostatic discharges. Do not touch the
components and terminals directly. If needed, touch first the grounded metal frame or wear an
adequate ground strap.
Do not perform a withstand voltage test on any part of the inverter!
If needed, please, consult WEG.
NOTE!
Frequency inverters may cause interference in other electronic devices. Follow the recommendations
listed in Chapter 3 – Installation and Connection, to minimize these effects.
1-2
NOTE!
Fully read this manual before installing or operating the inverter.
Safety Instructions
ATTENTION!
Operation of this equipment requires detailed installation and operation instructions provided in the
User's Manual, Software Manual and Manual/Guides for Kits and Accessories. Only User's Manual is
provided on a printed version. The other manuals are provided on the CD supplied with the product.
This CD should be retained with this equipment at all times. A hard copy of this information may be
ordered through your local WEG representative.
1
1-3
1
Safety Instructions
1-4
General Instructions
GENERAL INSTRUCTIONS
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
size E models.
It is also possible to operate the CFW-11 in the following control modes: V V W, Sensorless Vector and Vector with
Encoder. For further details on the inverter operation with other control modes, refer to the Software Manual.
For information on other functions, accessories, and communication, please refer to the following manuals:
Software Manual, with a detailed description of the parameters and advanced functions of the CFW-11.
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.
2
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
Normal Duty Cycle (ND): Inverter duty cycle that defines the maximum continuous operation current (I
the overload current (110 % for 1 minute). The ND cycle is selected by setting P0298 (Application) = 0 (Normal
Duty (ND)). This duty cycle shall be used for the operation of motors that are not subjected to high torque loads
(with respect to the motor rated torque) during its operation, starting, acceleration, or deceleration.
I
: Inverter rated current for use with the normal duty (ND) cycle.
RAT-ND
Overload: 1.1 x I
Heavy Duty Cycle (HD): Inverter duty cycle that defines the maximum continuous operation current (I
and the overload current (150 % for 1 minute). The HD cycle is selected by setting P0298 (Application) = 1
(Heavy Duty (HD)). This duty cycle shall be used for the operation of motors that are subjected to high torque
(with respect to the motor rated torque) during its operation, starting, acceleration, or deceleration.
I
: Inverter rated current for use with the heavy duty (HD) cycle.
RAT-HD
Overload: 1.5 x I
RAT-ND
RAT-HD
/ 1 minute.
/ 1 minute.
RAT-ND
) and
RAT-HD
)
Rectifier: Input circuit of inverters that transforms the AC input voltage in DC voltage. It is composed of power
diodes.
Pre-charge Circuit: Charges the DC bus capacitors with limited current, which avoids higher peak currents
at the inverter power-up.
2-1
General Instructions
DC Bus: Inverter intermediate circuit; DC voltage obtained from the rectification of the AC input voltage or
from an external power supply; feeds the output inverter bridge with IGBTs.
Power modules U, V, and W: Set of two IGBTs of the inverter output phases U, V, and W.
IGBT: Insulated Gate Bipolar Transistor; basic component of the output inverter bridge. The IGBT works as an
electronic switch in the saturated (closed switch) and cut-off (open switch) modes.
Braking IGBT: Works as a switch to activate the braking resistors. It is controlled by the DC bus voltage
level.
2
PTC: Resistor which resistance value in ohms increases proportionally to the temperature increase; used as a
temperature sensor in electrical motors.
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 motor control, and the visualization and
modification of the inverter parameters. The CFW-11 HMI presents keys for the motor command, 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).
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 that feeds the motor.
Switching frequency: Frequency of the IGBTs switching in the inverter bridge, normally expressed in kHz.
General enable: When activated, this function accelerates the motor via acceleration ramp set in the inverter.
When deactivated, this function immediately blocks the PWM pulses. The general enable function may be
controlled through a digital input set to this function or via serial communication.
Start/Stop: When enabled in the inverter (start), this function accelerates the motor via acceleration ramp up
to the speed reference. When disabled (stop), this function decelerates the motor via deceleration ramp up to
the complete motor stop; at this point, the PWM pulses are blocked. The start/stop function may be controlled
through a digital input set for this function or via serial communication. The operator keys (Start) and
(Stop) of the keypad work in a similar way.
Heatsink: Metal device designed to dissipate the heat generated by the power semiconductors.
2-2
PLC: Programmable Logic Controller.
°C: Celsius degree.
°F: Fahrenheit degree.
AC: Alternated Current.
Amp, A: Ampères.
CFM: Cubic Feet per Minute; unit of flow.
General Instructions
cm: Centimeter.
DC: Direct Current.
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.
2
mA: Miliampère = 0.001 Ampère.
min: Minute.
mm: Millimeter.
ms: Millisecond = 0.001 seconds.
Nm: Newton meter; unit of torque.
rms: "Root mean square"; effective value.
rpm: Revolutions per minute; unit of speed.
s: Second.
V: Volts.
Ω: Ohms.
2-3
2
2
General Instructions
2.3 ABOUT THE CFW-11
The CFW-11 frequency inverter is a high performance product designed for speed and torque control of threephase induction motors. The main characteristic of this product is the “Vectrue” technology, which has the
following advantages:
Scalar control (V/f), V V W, or vector control programmable in the same product;
The vector control may be programmed as “sensorless” (which means standard motors without using
encoders) or as “vector control” with the use of an encoder;
The “sensorless” control allows high torque and fast response, even in very low speeds or at the starting;
The “vector with encoder” control allows high speed precision for the whole speed range (even with a
standstill motor);
"Optimal Braking" function for the vector control, allowing the controlled braking of the motor and avoiding
the use of the braking resistor in some applications;
“Self-Tuning” feature for vector control. It allows the automatic adjustment of the regulators and control
parameters from the identification (also automatic) of the motor parameters and load.
2-4
Mains Power
Supply
= DC bus connection
= Braking resistor connection
S/L2
T/L3
Three-phase
rectifier
PE
DCL+
DCL-
RFI Filter
(*)
charge
Pre-
DC+BRDC-
bank
DC link chokes
DC link capacitor
Braking IGBT
Inverter with
IGBT transistors
(optional)
Feedback:
- voltage
- current
General Instructions
U/T1R/L1
V/T2
Motor
W/T3
PE
2
PC
SuperDrive G2 Software
WLP Software
Keypad
(remote)
Digital
Inputs
(DI1 to DI6)
Analog
Inputs
(AI1 and AI2)
POWER
CONTROL
USB
FLASH
Memory
Module
Control power supply and interfaces
between power and control
Keypad
CC11
Control
Board
with a 32
bits "RISC"
CPU
Accessories
I/O Expansion
(Slot 1 - white)
Encoder Interface
(Slot 2 - yellow)
COMM 1
(Slot 3 - green)
COMM 2
(anybus) (Slot 4)
Analog
Outputs
(AO1 and AO2)
Digital Outputs
DO1 (RL1) to
DO3 (RL3)
(*) The RFI filter capacitor against the ground must be disconnected with IT and grounded delta networks. Refer to the section 3.2.3.1.1 for more
details.
Figure 2.1 - Block diagram for the CFW-11
2-5
2
General Instructions
A – Keypad
B – Control rack cover
C – CC11 control board
D – FLASH memory module
E – Control accessory module (refer to the section 7.2)
F – Anybus-CC accessory module (refer to the section 7.2)
G – Bottom front cover
H – Heatsink fan
I – Mounting supports (for through the wall mounting)
J – Hoisting eye
K – Rear part of the inverter (external part for flange mounting)
L – SRB2 Safety stop board
M – Nema1 kit top cover (“hat”)
N – Nema1 kit bottom (Conduit kit)
M
Inverter with Nema1 kit
(optional)
N
2-6
Figure 2.2 - Main components of the CFW-11
1
USB Connector
2
USB LED
Off: No USB connection
On/Flashing: USB communication is active
3
STATUS LED
Green: Normal operation with no fault or alarm
Yellow: Alarm condition
Flashing red: Fault condition
General Instructions
2
Figure 2.3 - LEDs and USB connector
2.4 IDENTIFICATION LABELS FOR THE CFW-11
There are two nameplates on the CFW-11: one complete nameplate is affixed to the side of the inverter and
a simplified one is located under the keypad. The nameplate under the keypad allows the identification of the
most important characteristics of the inverter even if they are mounted side-by-side.
CFW-11 model
WEG part number
Inverter net weight
Input rated data (voltage, number of phases,
rated currents for operation with ND and HD
overload cycles, and frequency)
Current specifications for operation with
normal overload cycle (ND)
Current specifications for operation with
heavy overload cycle (HD)
Available certifications
Manufacturing date (day/month/year)
Serial number
Maximum surrounding air temperature
Software Version
Output rated data (voltage, number of phases,
rated currents for operation with ND and HD
overload cycles, over load currents for 1 min
and 3 s, and frequency range)
(a) Nameplate afxed to the side of the inverter
CFW-11 model
WEG part number
CFW110211T4SZ
12345678
SERIAL#:
(b) Nameplate located under the keypad
Figure 2.4 (a) and (b) - Nameplates
99/99/9999
1234567980
Manufacturing date (day/month/year)
Serial number
2-7
2
General Instructions
1
Nameplate affixed to the
1
side of the heatsink
Nameplate under the keypad
2
Figure 2.5 - Location of the nameplates
2-8
Character
that
identifies
Special
software
Special
hardware
external
power supply
the code
end
for control
Blank=
standard
S1=special
software #1
Blank=
standard
H1=special
hardware #1
Blank=
standard (not
available)
W=24 Vdc
Blank=
standard
(safety stop
function is not
Blank=
standard
(with
internal RFI
external
power supply
for control
available)
Y=with safety
stop function
filter)
General Instructions
according to
EN-954-1
category 3
2
Blank=
standard
(no braking
IGBT)
DB=with
braking
IGBT
Refer to chapter 8 to check option kit availability for each inverter model
KeypadBrakingRFI filterSafety stop24 Vdc
type
Option kitEnclosure
Power supply
voltage
Number of
power phases
INVERTER MODELAVAILABLE OPTION KITS (CAN BE INSTALLED IN THE PRODUCT FROM THE FACTORY)
Blank=
standard
keypad
IC=no
Blank=
standard
(IP20)
N1=
S=standard
product
O=product
with option kit
2=220...230 V
4=380...480 V
T=three-phase
power supply
keypad
(blind
Nema1
cover)
technical specifications of the inverters are also presented
Refer to the CFW-11 series frame size E model list in the chapter 8, where the
HOW TO CODIFY THE CFW-11 MODEL (SMART CODE)
Rated output current for use with
the Normal Duty (ND) cycle
WEG CFW-11
frequency
inverter series
Market
identification
(defines
the manual
language and
the factory
ExampleBRCFW110211T4S_ __ __ __ __ __ __ __ _Z
Field
description
220...230 V models:
settings)
2 characters
Available
0142=115 A (HD) / 142 A (ND)
0180=142 A (HD) / 180 A (ND)
0211=180 A (HD) / 211 A (ND)
380...480 V models:
0105=88 A (HD) / 105 A (ND)
0142=115 A (HD) / 142 A (ND)
0180=142 A (HD) / 180 A (ND)
options
0211=180 A (HD) / 211 A (ND)
2-9
2
General Instructions
2.5 RECEIVING AND STORAGE
The CFW-11 frame size E models are supplied packed in wooden boxes.
There is an identification label affixed to the outside of this package, the same one that is affixed to the side
of the CFW-11 inverter.
Follow the instructions below to remove the CFW-11 from the package:
1- Put the shipping container over a flat and stable area with the assistance of another two people;
2- Open the wood crate;
3- Remove all the packing material (the cardboard or styrofoam protection) before removing the inverter.
Check the following items once the inverter is delivered:
Verify that the CFW-11 nameplate corresponds to the model number on your purchase order;
Inspect the CFW-11 for external damage during transportation.
Report any damage immediately to the carrier that delivered your CFW-11 inverter.
If CFW-11 is to be stored for some time before use, be sure that it is stored in a clean and dry location that
conforms to the storage temperature specification (between -25 °C and 60 °C (-13 °F and 140 °F)). Cover the
inverter to prevent dust accumulation inside it.
ATTENTION!
Capacitor reforming is required if drives are stored for long periods of time without power. Refer to
the procedures in item 6.5 - table 6.3.
2-10
INSTALLATION AND CONNECTION
This chapter provides information on installing and wiring the CFW-11.
The instructions and guidelines listed in this manual shall be followed
to guarantee personnel and equipment safety, as well as the proper
operation of the inverter.
3.1 MECHANICAL INSTALLATION
3.1.1 Installation Environment
Avoid installing the inverter in an area with:
Direct exposure to sunlight, rain, high humidity, or sea-air;
Inflammable or corrosive gases or liquids;
Excessive vibration;
Dust, metallic particles, and oil mist.
Installation and Connection
Environment conditions for the operation of the inverter:
Temperature: -10 ºC to 45 ºC (14 °F to 113 °F) - standard conditions (surrounding the inverter).
From 45 ºC to 55 ºC (113 °F to 131 °F) - current derating of 2 % each °C (or 1.11 % each °F) above 45 ºC
(113 °F).
Humidity: from 5 % to 90 % non-condensing.
Altitude: up to 1000 m (3,300 ft) - standard conditions (no derating required).
From 1000 m to 4000 m (3,300 ft to 13,200 ft) - current derating of 1 % each 100 m (or 0.3 % each 100 ft)
above 1000 m (3,300 ft) altitude.
Pollution degree: 2 (according to EN50178 and UL508C) with non-conductive pollution. Condensation shall
not originate conduction through the accumulated residues.
3.1.2 Mounting Considerations
Consult the inverter weight at the table 8.1.
Mount the inverter in the upright position on a flat and vertical surface.
External dimensions and fixing holes position according to the figure 3.1. Refer to the section 8.3 for more
details.
First put the screws on the surface where the inverter will be installed, install the inverter and then tighten the
screws.
3
Minimum mounting clearances requirements for proper cooling air circulation are specified in figure 3.2.
Do not install heat sensitive components right above the inverter.
3-1
Installation and Connection
ATTENTION!
When arranging two or more inverters vertically, respect the minimum clearance A + B (figure 3.2)
and provide an air deflecting plate so that the heat rising up from the bottom inverter does not affect
the top inverter.
ATTENTION!
Provide conduit for physical separation of the signal, control, and power conductors (refer to item
3.2 - Electrical Installation).
3
675 (26.6)
335 (13.2)
200 (7.8)
358 (14.1)
620 (24.4)
168 (6.6)
275 (10.8)
3-2
Air flow
650 (25.6)
(a) Surface Mounting
Model
Frame EM8M8
Tolerances for dimensions d3 and e3: +1.0 mm (+0.039 in)
Tolerances for remaining dimensions: ±1.0 mm (±0.039 in)
(*) Recommended torque for the inverter mounting (valid for c2 and c3)
Figure 3.1 (a) and (b) - Mechanical installation details - mm (in)
∅ c2
Air flow
c2c3d3e3Torque (*)
MM
mm
(in)
315
(12.40)
Max. 3 (0.12)
mm
(in)
615
(24.21)
e3
635 (25)
d3
∅ c3
(b) Flange Mounting
N.m
(lbf.in)
20.0
(177.0)
Installation and Connection
3
ABCD
Model
CFW11 0142 T 2
CFW11 0180 T 2
CFW11 0211 T 2
CFW11 0105 T 4
CFW11 0142 T 4
CFW11 0180 T 4
CFW11 0211 T 4
Tolerance: ±1.0 mm (±0.039 in)
Figure 3.2 - Free spaces for ventilation, above, below, at the front and at the sides of the inverter
mm
(in)
100
(3.94)
150
(5.91)
100
(3.94)
150
(5.91)
mm
(in)
130
(5.12)
250
(9.84)
130
(5.12)
250
(9.84)
mm
(in)
20
(0.78)
mm
(in)
40
(1.57)
80
(3.15)
40
(1.57)
80
(3.15)
3-3
3
Installation and Connection
3.1.3 Cabinet Mounting
There are two possibilities for mounting the inverter: through the wall mounting or flange mounting (the heatsink
is mounted outside the cabinet and the cooling air of the power module is kept outside the enclosure). The
following information shall be considered in these cases:
Surface assembly:
Provide adequate exhaustion so that the internal cabinet temperature is kept within the allowable operating
range of the inverter.
The power dissipated by the inverter at its rated condition, as specified in table 8.1 "Dissipated power in
Watts - Through the wall mounting".
The cooling air flow requirements, as shown in table 3.1.
The position and diameter of the mounting holes, according to figure 3.1.
Flange assembly:
The losses specified in table 8.1 "Dissipated power in Watts - Flange mounting" will be dissipated inside the
cabinet. The remaining losses (power module) will be dissipated through the vents.
The inverter securing supports and the hoisting eyes must be removed and repositioned according to the
figure 3.3.
The portion of the inverter that is located outside the cabinet is rated IP54. Provide an adequate gasket for
the cabinet opening to ensure that the enclosure rating is maintained. Example: silicone gasket.
Mounting surface opening dimensions and position/diameter of the mounting holes, as shown in figure 3.1.
Table 3.1 - Cooling air ow for frame size E models
ModelCFMI/sm³/min
CFW11 0142 T 2138653.9
CFW11 0180 T 2
CFW11 0211 T 2
CFW11 0105 T 4138653.9
CFW11 0142 T 4180955.1
CFW11 0180 T 4
CFW11 0211 T 4
2651257.5
2651257.5
3-4
Installation and Connection
321
654
3
Figure 3.3 - Repositioning the mounting supports
3.1.4 Installation of the Inverter Hoisting Eyes
Two hoisting eyes for the inverter lifting, which are mounted at the inverter sides (rear part), are supplied. By
inverting their position, as showed in the figure 3.4, 2 points for hoisting the inverter, which are very useful
during the mechanical installation of the inverter, are obtained.
Figure 3.4 - Installation of the inverter hoisting eyes
3-5
Installation and Connection
3.1.5 Installation of the Inverter with Nema1 Kit (Optional, CFW11XXXXTXON1) on a Wall
Fixing holes position and diameter according to the figure 3.1.
External dimensions of the inverter with Nema1 kit according to the section 8.4.
Fasten the inverter.
Install the Nema1 kit top on the inverter as showed in the figure 3.5 using the 2 M8 screws supplied with
the product.
3
Figure 3.5 - Installation of the Nema1 kit top (“hat”)
3.1.6 Access to the Control and Power Terminal Strips
In order to get access to the control terminal strips, the HMI and the cover of the control rack must be removed,
as showed in the figure 3.6.
321
3-6
Figure 3.6 - HMI and control rack cover removal
Installation and Connection
In order to get access to the power terminal block, the bottom front cover must be removed, as showed in the
figure 3.7.
21
Figure 3.7 - Bottom front cover removal
At the CFW11 0180 T 2 O N1, CFW11 0211 T 2 O N1, CFW11 0180 T 4 O N1 and CFW11 0211 T 4 O
N1 inverters (supplied with Nema1 kit), it is also necessary to remove the front cover of the Nema1 kit bottom
part in order to be able to execute the power section electric installation – see the figure 3.8.
12
4
5
3
3
Figure 3.8 - Removal of the Nema1 kit bottom front cover at the CFW11 0180 T 2 O N1, CFW11 0211 T 2 O N1,
CFW11 0180 T 4 O N1 and CFW11 0211 T 4 O N1 inverters in order to get access to the power terminal block
3-7
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