WEG CFW-11W Installation and operating instructions

Motors I Automation I Energy I Transmission & Distribution I Coatings
Modular Drive
CFW-11W
Addendum of the Frequency Inverter

Addendum of the Frequency Inverter
Series: CFW-11W
Language: English
Document Number: 10002796209 / 01
Models: 700...3325 A/380...480 V
640...3040 A/500...690 V
Publication Date: 05/2017

Contents
CONTENTS
1. GENERAL INFORMATION ..............................................................................1-1
1.1. ABOUT THE MANUAL............................................................................................................. 1-1
1.2.
ABOUT THE CFW-11w ........................................................................................................... 1-1
1.3.
HOW TO SPECIFY THE MODEL .............................................................................................. 1-5
2.
INSTALLATION AND CONNECTION................................................................2-1
2.1.
ENVIRONMENTAL CONDITIONS............................................................................................. 2-1
2.2.
COMPONENT LIST ................................................................................................................. 2-1
2.3.
MECHANICAL INSTALLATION ................................................................................................ 2-2
2.4.
COOLING SYSTEM................................................................................................................. 2-6
2.4.1. Condensation .................................................................................................................2-7
2.5.
ELECTRICAL INSTALLATION .................................................................................................. 2-7
2.5.1. Input Rectifier.................................................................................................................. 2-8
2.5.2. Fuses.............................................................................................................................. 2-9
2.5.3. UP11 Connections.......................................................................................................... 2-9
2.6.
INSTALLATIONS ACCORDING TO THE EUROPEAN DIRECTIVE OF ELECTROMAGNETIC
COMPATIBILITY........................................................................................................................... 2-12
2.6.1. Conformal Installation.................................................................................................... 2-12
2.6.2. Standard Definitions...................................................................................................... 2-13
2.6.3. Emission and Immunity Levels ......................................................................................2-14
2.6.4. External RFI Filters ........................................................................................................2-14
3.
TROUBLESHOOTING AND MAINTENANCE.....................................................3-1
3.1.
FAULTS, ALARMS AND POSSIBLE CAUSES........................................................................... 3-1
3.2.
NECESSARY INFORMATION TO CONTACT TECHNICAL SUPPORT........................................ 3-4
3.3.
PREVENTIVE MAINTENANCE.................................................................................................. 3-4
3.3.1. Cleaning Instructions....................................................................................................... 3-5
4.
OPTIONAL KITS ............................................................................................4-1
4.1.
OptionAL Kits and AcCessories............................................................................................... 4-1
5.
TECHNICAL SPECIFICATIONS .......................................................................5-1
5.1.
POWER DATA......................................................................................................................... 5-1
5.2.
ELECTRONICS/GENERAL DATA ............................................................................................. 5-5
5.2.1. Codes and Standards..................................................................................................... 5-6
5.3.
MECHANICAL DATA ............................................................................................................... 5-7
5.4.
REGENERATIVE BRAKING OPERATION.................................................................................. 5-9

General Information
CFW11W | 1-1
1. GENERAL INFORMATION
ATTENTION!
Strictly follow the safety instructions contained in this Addendum and in the CFW-11M user
manual
.
1.1.
ABOUT THE MANUAL
This manual provides information about the CFW-11W Modular Drive frequency inverter series. Refer to the
CFW-11M user manual and the CFW-11 programming manual.
1.2.
ABOUT THE CFW-11W
The inverters of CFW-11W series present a modular design, with configurations from one to five Power Units
(UP11), one Unit Control (UC11) and wiring cables. The modular assembly increases the reliability of the inverter
and simplifies its maintenance. A single control unit (UC11) can control up to 5 UP11s.
These inverters are water cooled, being more compact than other inverters. Moreover, the DC link features
plastic film capacitors, which reduce losses and increase maintenance intervals.
The UP11s are directly powered by the DC link and the UC11 is powered by an external +24 Vdc power supply.
Figure 1.1 shows the standard configuration with an input six pulses rectifier.
The power units are controlled by the UC11. The UC11 contains the control rack of CFW-11 series and the IPS
board. This board sends signals to all UP11s (PWM, control signals, etc.) and receives signals from them
(voltage feedback, current, etc.).
Figure 1.1:
Example of configuration with 5 UP11s and 6-pulse rectifiers

General Information
CFW11W | 1-2
Figure 1.2:
Block Diagram of the CFW-11W

General Information
CFW11W | 1-3
Figure 1.3:
UC 11 Main parts
Figure 1.4:
UP 11 Main parts

General Information
CFW11W | 1-4
Figure 1.5:
UP11 connections between the IPS1 interface board and CIM1
Figure 1.6:
UP11 – connections between the CIM1 interface board and the PSB1 power supply board
Figure 1.7:
UP11 - connections between the CIM1 interface board, the gate driver boards, module and sensors for output voltage and
current condition

General Information
CFW11W | 1-5
NOTE
!
In order to assemble the complete drive, several additional items are needed, such as: input
rectifier, fuses on the DC power supply for each UP11, external pre-charge circuit and input
reactance with minimum input impedance of 3% when it is a 6-pulse rectifier.
NOTE
!
It is not necessary to add the ground fault CT to the drive, since the UP11s have their own
protection.
1.3.
HOW TO SPECIFY THE MODEL
In order to specify the model of the CFW-11W, replace the smart code values with the desired rated supply
voltage and rated output current in the respective fields, for operation under normal duty cycle (ND), as shown in
the example:
Table 1.1:
Smart Code
Inverter Model Option Items Available
Refer to the model list of the CFW
-
11W
series in chapter 5, which
also contains
the technical specifications of the
inverters.
Refer to chapter 7 of the CFW11M user manual
for further details on the option items.
Example BR CFW11W 0640 T
6 (*)
S_ _ _ _ _ _ _ _ Z
Field
description
Identification
of the market
(defines the
manual
language and
factory
settings)
WEG
frequency
inverter
series 11
Rated
output
current
for
use
with
the
Normal
Duty
(ND)
cycle
Number
of output
phases
Rated
output
voltage
Option kit
Braking
Safety
stop
Special
hardware
Special
software
Character
that
identifies
the code
end
Options
available
2 characters
T=Three-
Phase
4=380..
.480 V
6=500..
.690 V
S=Standard
product
O=Product
with option
items
Blank=
standard
RB=
Regenerative
braking
Blank=
Standard
(without
safety
stop)
Y=with
safety stop
function as
per EN
-
954
-1
category 3
Blank=
Standard
H1=
Special
hardware
# 1
Blank=
Standard
S1=
Special
software #
1
(*)This field (voltage) represents the three-phase input voltage on the rectifier that feeds DC voltage to the CFW-11W. The rectifier is not part
of the CFW11W.
NOTE
!
For the other fields of the code, refer to the CFW-11M user manual.
E.g.: CFW11W0640T6SZ corresponds to a standard CFW-11W inverter with 640-A three-phase output and
input supply voltage of 500 - 690 V. The options for the inverter rated current under normal duty (ND) cycle are
available in Table 1.2 below:

General Information
CFW11W | 1-6
Table 1.2:
Rated currents under normal duty cycle
380-480 V
500-690 V
0700 = 700 A
0640 = 640 A
1330 = 1330 A
1216 = 1216 A
1995 = 1995 A
1824 = 1824 A
2660 = 2660 A
2432 = 2432 A
3325 = 3325 A
040 A

Installation and Connection
CFW11W | 2-1
2. INSTALLATION AND CONNECTION
This chapter describes the procedures for the electrical and mechanical installation of the CFW-11W Modular
Drive. The directions and suggestions must be observed so as to ensure the safety of people and equipment,
and the proper operation of the inverter.
2.1.
ENVIRONMENTAL CONDITIONS
Avoid installing the CFW-11W in areas with:
Direct exposure to sunlight, rain and high humidity
Inflammable or corrosive gases or liquids
Excessive vibration
Dust, metallic particles and oil mist.
Environment conditions for the operation of the inverter:
Ambient temperature: 0 °C to 40 °C (32 °F to 104 °F) – nominal conditions (measured around the
inverter). 40 °C to 45 °C (104 °F to 113 °F) – current derating of 2 % for each 1 °C (1.8 °F) above 40 °C
(104 °F).
Coolant input temperature: 0 ºC to 40 ºC (32°F to 104°F) according to the coolant used. 40 ºC to 45 ºC
(104 °F to 113 °F) – current derating of 3 % for each 1 °C (1.8 °F) above 40 ºC (104 °F)
Coolant flow: 20 l/min.
Air relative humidity: 5 % to 90 % non-condensing.
Maximum altitude: up to 1000 m (3,300 ft) – nominal conditions. 1000 m to 4000 m (3,300 ft to 13,200
ft) – current derating of 1 % for each 100 m (or 0.3 % each 100 ft) above 1000 m (3,300 ft). 2000 m to
4000 m (6,600 ft to 13,200 ft) – maximum voltage derating of 1.1 % for each 100 m (or 0.33 % each
100 ft) above 2000 m (6,600 ft). Maximum altitude up to 4000 m (13,200 ft).
Pollution degree: 2 (according to EN50178 and UL508C), with non-conductive pollution. Condensation
shall not originate conduction through the accumulated residues.
2.2.
COMPONENT LIST
The kit for panel mounting is composed of the control set and the UP11 power units, whose number varies
according to the current. The control set contains the UC11 control unit, the cable sets required for wiring the
IPS board to the power units and the ribbon cable that connects the IPS board to the CC11 control board.
Table 2.1:
Currents and settings at 390-490 V
Rated Current (A)
Number of UP11-04
power units
ND HD
700 515 1
1330
979
2
1995
1468
3
2660 1957 4
3325
2446
5