WEG CFW700 User Manual
Motors | Automation | Energy | Transmission & Distribution | Coatings
Frequency Inverter
Convertidor de Frecuencia
Inversor de Frequência
CFW700
User's Manual
Manual del Usuario
Manual do Usuário
Language: English, Spanish, Portuguese
User's Manual
Series: CFW700
Language: English
Document: 10000771684 / 04
Models: Frame Sizes A...E
Date: 05/2015
Summary of Revisions
The table below describes the revisions made to this manual.
Version Review Description
- R01 First edition
- R02 Cover update
- R03 General revision
- R04
Inclus ion of n ew fr ame s izes m ode ls D an d E
Update from IP54 to IP55 in frame sizes B and C
ATTENTION!
Parameters P0296 (Rated Line Voltage), P0400 (Rated Motor Voltage) and
P0403 (Rated Motor Frequency), were readjusted at the:
200...240 V / 220 / 230 V (S2, B2 and T2) models: P0296 = 0 (200 / 240 V),
P0400 = 220 V and P0403 = 60 Hz.
380...480 V (T4) models: P0296 = 3 (440 / 460 V), P0400 = 440 V and
P0403 = 60 Hz.
500...600 V (T5) models: P0296 = 6 (550 / 575 V), P0400 = 575 V and P0403
= 60 Hz.
For different values of line rated voltage and/or motor voltage and frequency,
set these parameters through the STARTUP menu, as presented in the user's
manual section 5.2 START-UP on page 48.
Contents
1 SAFETY INSTRUCTIONS .................................................................... 1
1.1 SAFETY WARNINGS IN THE MANUAL .................................................... 1
1.2 SAFETY WARNINGS IN THE PRODUCT ................................................. 1
1.3 PRELIMINARY RECOMMENDATIONS ....................................................2
2 GENERAL INSTRUCTIONS ................................................................3
2.1 ABOUT THE MANUAL .............................................................................. 3
2.2 ABOUT THE CFW700 ................................................................................ 3
2.3 IDENTIFICATION .......................................................................................6
2.4 LIST OF AVAILABLE MODELS ................................................................ 8
2.5 IDENTIFICATION LABELS ........................................................................ 8
2.6 RECEIVING AND STORAGE .....................................................................9
3 INSTALLATION AND CONNECTION ................................................10
3.1 MECHANICAL INSTALLATION ...............................................................10
3.1.1 Installation Environment ...............................................................10
3.1.2 Mounting Considerations .............................................................10
3.2 ELECTRICAL INSTALLATION ................................................................11
3.2.1 Identification of the Power and Grounding Terminals ..............12
3.2.2 Power / Grounding Wiring and Fuses ......................................... 14
3.2.3 Power Connections .......................................................................15
3.2.3.1 Input Connections .............................................................15
3.2.3.2 Dynamic Braking (standard built-in for frame
sizes A, B, C and D and optional built-in for frame size
E - CFW700...DB...) ........................................................................16
3.2.3.3 Output Connections ......................................................... 17
3.2.4 Grounding Connections ...............................................................19
3.2.5 Control Connections ....................................................................19
3.2.6 Cable Distances ............................................................................23
3.3 INSTALLATION ACCORDING TO THE EUROPEAN DIRECTIVE
OF ELECTROMAGNETIC COMPATIBILITY ................................................24
3.3.1 Conformal Installation ..................................................................24
3.3.2 Emission and Immunity Levels ....................................................25
English
4 KEYPAD (HMI) AND BASIC PROGRAMMING ...............................26
4.1 INTEGRAL KEYPAD - HMI-CFW700 ......................................................26
4.2 APPLICATIONS ........................................................................................29
4.2.1 PID Regulator Application ............................................................29
4.2.1.1 Academic PID ..................................................................... 33
4.2.2 Electronic Potentiometer (EP) Application ...............................38
4.2.3 Multispeed Application ...............................................................40
4.2.4 3-Wire Start/Stop Command Application ..................................44
4.2.5 Forward/Reverse Run Application..............................................45
5 FIRST TIME POWER-UP AND START-UP .......................................48
5.1 PREPARE FOR START-UP ......................................................................48
5.2 START-UP.................................................................................................48
5.2.1 Oriented Start-up Menu ................................................................49
5.2.2 Basic Application Menu ..............................................................51
Contents
6 TROUBLESHOOTING AND MAINTENANCE ...................................52
6.1 FAULTS AND ALARMS ............................................................................52
English
6.2 SOLUTIONS FOR THE MOST FREQUENT PROBLEMS ......................52
6.3 INFORMATION FOR CONTACTING TECHNICAL SUPPORT ..............53
6.4 PREVENTIVE MAINTENANCE................................................................53
6.5 CLEANING INSTRUCTIONS ..................................................................55
7 OPTION KITS AND ACCESSORIES ................................................. 57
7.1 OPTION KITS ............................................................................................ 57
7.1.1 Built-in RFI Filter (only for frame sizes A, B, C and D) -
CFW700...C3... ......................................................................................... 57
7.1.2 Dynamic Braking IGBT (only for frame size E in 220 / 230 V
and 380…480 V models and for frame sizes D and E in 500…600 V
models) - CFW700...DB... ...................................................................... 57
7.1.3 Nema1 Protection Degree (only for frame sizes A, B, C and E) -
CFW700...N1... .........................................................................................57
7.1.4 IP55 Protection Degree (only for frame sizes B and C) -
CFW700...N12... .......................................................................................57
7.1.5 IP21 Protection Degree (only for frame sizes A, B and C) -
CFW700...21... ..........................................................................................57
7.1.6 STO Function - CFW700...Y1... ......................................................57
7.1.7 24 Vdc External Control Power Supply - CFW700...W1... ..........58
7.2 ACCESSORIES .........................................................................................58
8 TECHNICAL SPECIFICATIONS ........................................................60
8.1 POWER DATA ...........................................................................................60
8.2 ELECTRICAL/GENERAL SPECIFICATIONS .........................................61
8.2.1 Codes and Standards ...................................................................63
APPENDIX A - DIAGRAMS AND FIGURES ......................................201
APPENDIX B - TECHNICAL SPECIFICATIONS ................................212
Safety Instructions
1 SAFETY INSTRUCTIONS
This manual provides information for the proper installation and operation of the CFW700
frequency inverter.
Only trained personnel, with proper qualifications, and familiar with this kind of equipment
and associated machinery shall plan and implement 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.
1.1 SAFETY WARNINGS IN THE 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.
English
1.2 SAFETY WARNINGS IN THE PRODUCT
The following symbols are attached to the product, serving as safety notices:
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.
CFW700 | 1
Safety Instructions
1.3 PRELIMINARY RECOMMENDATIONS
English
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).
NOTE!
Frequency inverters may cause inter ference in other electronic devices. Follow
the recommendations listed in chapter 3 INSTALLATION AND CONNECTION
on page 10, to minimize these effects.
Fully read this manual before installing or operating the inverter.
Do not perform a withstand voltage test on any part of the inverter!
If needed, please, consult WEG.
DANGER!
Crushing Hazard
In order to ensure safety in load lifting applications, electric and/or mechanical
devices must be installed outside the inverter for protection against accidental
fall of load.
2 | CFW700
DANGER!
This product was not designed to be used as a safety element. Additional
measures must be taken so as to avoid material and personal damages.
The product was manufactured under strict quality control, however, if installed
in systems where its failure causes risks of material or personal damages,
additional external safety devices must ensure a safety condition in case of a
product failure, preventing accidents.
General Instructions
2 GENERAL INSTRUCTIONS
2.1 ABOUT THE MANUAL
The purpose of this manual is to provide the basic information needed to install, start-up in
the V/f control mode (scalar), and troubleshoot the most common problems of the CFW700
frequency inverter series.
ATTENTION!
The operation of this equipment requires installation instructions and detailed operation
provided in the user's manual, programming manual and communication manuals.
The user's manual and the parameters quick reference are supplied in a hard copy
together with the inverter. The user guides are also provided in a hard copy along
with the accessories. The other manuals are included on the CD supplied with the
inverter or can be downloaded from the WEG website at - www.weg.net. The CD
should always be kept with the equipment. A printed copy of the files available on the
CD can be ordered through your local WEG representative.
Some of the figures and tables are available in the appendixes. The APPENDIX A - DIAGRAMS
AND FIGURES on page 201 shows the figures and the APPENDIX B - TECHNICAL
SPECIFICATIONS on page 212 shows the technical specifications. The information is available
in three languages.
Please refer to the following technical manuals for further information:
CFW700 Programming Manual.
English
DeviceNet Communication Manual.
CANopen Communication Manual.
Profibus DP Communication Manual.
Modbus Communication Manual.
2.2 ABOUT THE CFW700
The CFW700 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), VVW 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).
CFW700 | 3
General Instructions
“Optimal Braking” function for the vector control, allowing the controlled braking of the motor
and avoiding external braking resistor for some applications.
English
“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.
The main components of the CFW700 can be viewed in Figure A.1 on page 201.
4 | CFW700
Mains power
supply
PC
R/L1/L
S/L2/N
T/L 3
PE
C3 RFI filter (*)
(available in
CFW700...C3...
Three-phase
rectifier
inverters)
Pre-
charge
DC+ DC-BR
DC link chokes
POWER
CONTROL
General Instructions
= DC bus connection
= Braking resistor
connection
U/T1
V/T2
Motor
W/T3
Inverter
with
RFI filter
DC link capacitor bank
CFW700...DB... inver ters)
Braking IGBT (available in
IGBT
transistors
Feedback:
- voltage
- current
PE
English
WPS software
WLP software
Keypad
(remote)
Digital inputs
DI1 to DI8
Analog
inputs
AI1 and AI2
RS-485
FLASH
memor y
module
(Slot 5)
Control power supply and interfaces
between power and control
Keypad
CC700
Control
board
with a
32 bits
"RISC"
CPU
Accessories
COMM 1
(Slot 3 - Green)
= Keypad (HMI)
(*) The capacitor to the ground of the C3 RFI filter (it is possible to meet the
requirements of category C2 with this filter on mechanics A models) must be
disconnected for IT net works and grounded delta power supplies. Please
refer to item 3.2.3.1 Input Connections on page 15.
Figure 2.1: Block diagram for the CFW700
Analog
outputs
AO1 and AO2
Digital output
DO 1 (R L1)
Digital outputs
DO2 to DO5
CFW700 | 5
General Instructions
2.3 IDENTIFICATION
Table 2.1: Identification of the CFW700 inverters
English
Product
and
Series
Eg.: CFW700 A 03P6 T 4 DB 20 C3 DS Y1 W1 --- --
CFW700
Available options
Notes:
(1) The options available for each mo del are shown in Table 2.2 on p age 7.
(2) This option is not avai lable for frame size D inverters (the standard product is N ema1).
(3) This option is not availab le for frame size A inve rters with the N1 optio n (Nema1 enclosure) or I P21.
(4) It is pos sible to meet the req uirements of cate gory C2 with this f ilter on mechan ics A models. For fu rther detail s, see Table B.6 on page 226.
(5) Only applicabl e to models w ith degree of protection IP55, opt ion N12.
Model Identification
Rated
Output
Current
(4)
(2)
Number
of Power
Phases
Rated
Volta ge
Frame
Size
Refer to Table 2.2 on p age 7.
NB = withou t dynamic braki ng (valid only for
frame size E inverters).
DB = with dy namic braking. Blank = standard.
20 = IP20
21 = IP21 (not availa ble for frame size E inverter s). Blank = not available.
N1 = Nema1 enclos ure (UL Type 1) (protection de gree
accordi ng to IEC: IP21 for frame size s A, B and C and IP20
for frame s izes D and E).
N12 = IP55 (only for 200...240 V and 3 80...480 V models of
frame sizes B, C, D and E).
Blank = it i s not in acco rdance with the sta ndard conducted emissi on
levels.
C3 = accord ing to category 3 (C3) of IEC 61800-3, wi th built-in C3 RFI
fil ter.
Braking
(1)
Enclosure
Condu cted
(1)
Emission
Level
(1)
Safet y
Discon.
Stop
(5)
Switc h
(3)
Blank
= not
available
DS =
with
discon.
switch
Blank = not available.
Y1 = with STO function (Safe Torqu e Off)
accordi ng to EN 954-1/ISO 13849-1,
category 3.
External
Special
Control
Volta ge
W1 = 24 Vdc power supply,
indepe ndent of the control
voltage.
Special
Hardware
Software
Versi on
Versi on
Blank =
standard.
Sx =
special
software.
Hxx or K xx = special
hardware.
6 | CFW700
General Instructions
Table 2.2: Options available for each model according to the size, power supply, rated current and
voltage of the inverter
Frame
Size
A
A
A
B
C
D
E
A
B
C
D
E
B
C
D
E
Rated Output
Curre nt for ND
Overload
06P0 = 6.0 A
07P0 = 7.0 A
06P0 = 6.0 A
07P0 = 7.0 A
10P0 = 10 A Blank or C3
07P0 = 7.0 A
10P0 = 10 A
13P0 = 13 A
16P0 = 16 A
24P0 = 24 A
28P0 = 28 A
33P5 = 33.5 A
45P0 = 45 A
54P0 = 54 A
70P0 = 70 A
86P0 = 8 6 A
0105 = 105 A
0142 = 142 A
02 11 = 211 A
03P6 = 3.6 A
05P0 = 5.0 A
07P0 = 7.0 A
10P0 = 10 A
13P5 = 13.5 A
17P0 = 17 A
24P0 = 24 A
31P0 = 31 A
38P0 = 3 8 A
45P0 = 45 A
58P5 = 58.5 A
70P5 = 70.5 A
88P0 = 8 8 A
0105 = 105 A
0142 = 142 A
0180 = 180 A
02 11 = 211 A
02P9 = 2.9 A
04P2 = 4.2 A
07P0 = 7.0 A
10P0 = 10 A
12P0 = 12 A
17P0 = 17 A
22P0 = 22 A
27P0 = 27 A
32P0 = 32 A
44P0 = 44 A
22P0 = 22 A
27P0 = 27 A
32P0 = 32 A
44P0 = 44 A
53P0 = 53 A
63P0 = 63 A
80P0 = 80 A
0107 = 107 A
0125 = 125 A
0150 = 150 A
Number of
Power Phases
B = single-phase or
three-phase
S = Single-phase 2 = 200…240 V DB 20, 21 or N1
T = three-phase
T = three-phase 4 = 380 / 480 V
T = three-phase 5 = 50 0...600 V
Rated Voltage
2 = 200…240 V DB 20, 21 or N1
2 = 200…240 V DB
2 = 220…230 V
Available Options for the Remaining Identification
Braking
NB or
DB
DB
NB or
DB
DB 20, 21 or N1
NB or
DB
Codes o f the Inverte rs
(standard product is shown in bold)
Enclosure
(Protection
Degree)
20, 21 or N1
20, 21, N1
or N 12
21, N1 o r N12
20, N1 or N12 C30180 = 180 A
20, 21 or N1 Blank
20, 21, N1
or N 12
21, N1 o r N12
20, N1 or N12 C3
21 or N1
20 or N1
Discon.
Switch
Blank
Blank o r DS
Blank o r DS
Blank or DS
Blank or DS
Blank
Condu cted
Emission Level
Blank
Blank or C3
Blank or C3
Blank or C3
Blank or C3
CFW700 | 7
English
C3
C3
General Instructions
2.4 LIST OF AVAILABLE MODELS
The available inverter models are listed in Table B.1 on page 212, Table B.2 on page 213
English
and Table B.3 on page 214.
2.5 IDENTIFICATION LABELS
There are two nameplates on the CFW700: one complete nameplate is affixed to the side of the
inverter and a simplified one is located under the keypad. Please refer to Figure A.2 on page
202 to verify the position of these labels on the product. The nameplate under the keypad
allows the identification of the most important characteristics of the inverter even if they are
mounted side-by-side. When there is more than one inverter it is necessary to be careful not to
exchange the inverter covers (front cover in case of inverters frame sizes A, B or C and control
rack cover for inverters frame sizes D and E) because there are individual information labels
under the keypad of each inverter.
CFW700 model
Manufacturing dateWEG part number
Serial number
(a) Nameplate located under the keypad
CFW700 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)
(b) Nameplate affixed to the side of the inverter
Figure 2.2: (a) and (b) Nameplates
Manufacturing date
Serial number
Maximum ambient
temperature (without
derating) for ND overload
with open spaces for
ventilation around the
inverter (refer to the
dimensions A, B, C and D
in Figure B.3 on page 234)
Output rated data
(voltage, number of
phases, rated currents for
operation with ND and HD
overload cycles, overload
currents for 1 min and 3 s,
and frequency range)
The maximum output
frequency depends on the
settings of the motor rated
frequency, control mode
and inverter switching
frequency. For fur ther
details, see Table 8.1 on
page 61.
8 | CFW700
General Instructions
2.6 RECEIVING AND STORAGE
The CFW700 comes packaged in a cardboard box up to frame size C inverter models. The
bigger models are packed in wooden box. There is an identification label affixed to the outside
of this package, the same one that is affixed to the side of the CFW700 inverter.
Follow the steps below to open the packaging of models larger than frame size C:
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 CFW700 nameplate corresponds to the model number on your purchase order.
Inspect the CFW700 for external damage during transportation.
Report any damage immediately to the carrier that delivered your CFW700 inverter.
If CFW700 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 section 6.4 PREVENTIVE MAINTENANCE on page 53.
English
CFW700 | 9
Installation and Connection
3 INSTALLATION AND CONNECTION
3.1 MECHANICAL INSTALLATION
English
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.
Environment conditions for the operation of the inverter:
Inverter surrounding temperature: from -10 ºC up to Ta according to the Table B.4 on page 216.
For temperatures around the inverter greater than Ta and smaller than 60 °C (frame sizes
A, B, C and D), 40 °C (models with degree of protection IP55) and 55 °C (frame size E), it is
necessary to apply current reduction of 2 % for every degree Celsius (or 1.11 % each °F) up
to Ta.
Humidity: from 5 % to 95 % 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.
From 2000 m to 4000 m (6,600 ft to 13,200 ft) above sea level - maximum voltage reduction
(240 V for 200...240 V models, 230 V for 220...230 V models, 480 V for 380...480 V models
and 600 V for 500...600 V models) of 1.1 % for each 100 m (330 ft) above 2000 m (6,600 ft).
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
External dimensions, fixing holes position and net weight of the inverter are presented at Figure
B.2 on page 232 and Figure B.3 on page 234. Please refer to Figure B.4 on page 235 to
Figure B.11 on page 242 for more details of each inverter size.
Install the inverter upright on a flat surface. First place the screws on the surface where the
drive is going to be installed, install the drive and then tighten the screws.
Frame size E inverters with N1 option (CFW700E...N1...):
After fixing the inverter, install the upper Nema 1 kit on the inverter using the two M8 screws
provided with the product.
10 | CFW700
Installation and Connection
Let the minimum clearances specified in Figure B.3 on page 234 in order to allow air circulation
for cooling. It is possible to assembly frame sizes A, B and C inverters with IP20 protection
degree (CFW700… 20…) side by side without lateral spacing, i.e., with the D distance presented
in Figure B.3 on page 234 equal to zero.
Do not install heat sensitive components right above the inverter.
ATTENTION!
When arranging two or more inverters vertically, respect the minimum
clearance A + B (Figure B.3 on page 234) and provide an air deflecting
plate so that the heat rising up from the bottom inverter does not affect the
top inverter.
Provide conduit for physical separation of the signal, control, and power
conductors (refer to section 3.2 ELECTRICAL INSTALLATION on page 11).
Please refer to Figure B.3 on page 234 for surface and flange mounting data. The inverter
dissipated power at rated condition for surface and flange mounting is presented in Table B.4
on page 216. Remove the drive mounting brackets for flange mounting. The protection degree
of the inverter outside the panel is IP55 for flange mounting. It is necessary to provide proper
seal for the opening where the inverter is installed to ensure the protection degree of the panel.
Example: sealing with silicone.
Please refer to Figure A.4 on page 204 for more details on the access to the control and
power terminals.
3.2 ELECTRICAL INSTALLATION
English
DANGER!
The following information is merely a guide for proper installation. Comply
with applicable local regulations for electrical installations.
Make sure the AC power supply is disconnected before starting the
installation.
CFW700 | 11
Installation and Connection
3.2 .1 Identification of the Power and Grounding Terminals
R/L1
S/L2
T/L 3
DC-
BR
DC+
U/T1
V/T2
W/T3
English
BR
BR
DC+
Ground
Ground
U/T1
V/T2
W/T3
Ground
(a) Frame sizes A, B and C
R/L1
S/L2
T/L 3
DC-
(b) Frame sizes B and C with degree of protection IP55
R/L1 S/L2 T/L 3 DC- DC+ U/T1 V/ T2 W/T3
Ground
Ground Ground
(c) Frame size D
R/L1, S/L2, T/L3: AC power supply.
DC-: this is the negative potential
terminal in the DC bus circuit.
BR: braking resistor connection.
DC+: this is the positive potential
terminal in the DC bus circuit.
U/T1, V/T2, W/T3: motor connection.
12 | CFW700
R/L1 S/L2 T/ L 3 DC- DC+ U/T1 V/ T2 W/T3BR
(d) Frame size D with degree of protection IP55
Ground
Ground
Installation and Connection
English
R/L1, S/L2, T/L3: AC power supply.
U/T1, V/T2, W/T3: motor
connwwection.
DC+: this is the positive potential
terminal in the DC bus circuit.
BR: braking resistor connection.
DC-: this is the negative potential
terminal in the DC bus circuit.
Ground
(4xM8, 4xM5)
(e) Frame size E
CFW700 | 13
Installation and Connection
R/L1 S/L2 T/ L 3 DC- DC+ U/T1 V/ T2 W/T3BR
English
(f) Frame size E with degree of protection IP55
Ground
Figure 3.1: (a) to (f) Power terminals and grounding points - frame sizes A to E
Ground
3.2.2 Power / Grounding Wiring and Fuses
ATTENTION!
Use proper cable lugs for the power and grounding connection cables.
Refer to Table B.1 on page 212, Table B.2 on page 213 and Table B.3 on page 214 for the
recommended wiring and fuses and Table B.5 on page 223 for the specifications of the power
terminals.
NOTE!
The gauges values presented in Table B.1 on page 212, Table B.2 on page 213
and Table B.3 on page 214 are for reference only. Installation conditions and the
maximum permitted voltage drop shall be considered for the proper wiring sizing.
Input fuses
The fuses to be used at the input must be HS (High-Speed) type with I
value indicated in the Table B.1 on page 212, Table B.2 on page 213 and Table B.3 on
page 214 (consider extinction current value in cold situation (it is not the fusion value)), to
protect the inverter diode rectifiers and input wiring.
In order to meet UL requirements, use class J fuses at the inverter supply with a current not
higher than the values presented in Table B.1 on page 212, Table B.2 on page 213 and
Table B.3 on page 214.
2
t equal or lower the
14 | CFW700
Installation and Connection
Optionally, slow blow fuses can be used at the input. They shall be sized for 1.2 x the rated
input current of the inverter. In this case, the installation is protected against short-circuit, but
not the inverter input rectifier. This may result in major damage to the inverter in the event of
an internal component failure.
3.2.3 Power Connections
English
PE R S T U V W PE
PE
Shielding
R
S
T
Power
supply
The switch-disconnector is not necessary if the inverter has the DS optional item (with
Disconnect
switch
Fuses
Figure 3.2: Power and grounding connections
PE W V U
switch-disconnector).
3.2.3.1 Input Connections
DANGER!
Provide a disconnect device for the input power supply of the inverter.
This device shall disconnect the input power supply for the inver ter when needed
(for instance, during servicing).
ATTENTION!
The power supply that feeds the inverter shall have a solid grounded neutral.
In case of IT networks, follow the instructions described below.
CFW700 | 15
Installation and Connection
ATTENTION!
In order to be able to use the CFW700 with built-in C3 RFI filter (frame sizes A, B, C
English
and D with optional RFI f ilter and all frame size E inverter models – CFW700…C3…)
in IT networks (neutral conductor not grounded or grounded via a high ohmic value
resistor) or in corner-grounded delta systems, it is necessary to remove some RFI
filter components (capacitor for frame sizes A, B, C and D and capacitor and the
MOV for frame size E) connected to the ground by removing the screws indicated
in Figure A.8 on page 208 for inverter frame sizes A, B, C and D and changing the
position of the J1 jumper on the PRT1 board from (XE1) to “NC” (XIT), according
to the Figure A.8 on page 208 for inverter frame size E.
AC power supply considerations
Suitable for use on a circuit capable of delivering not more than 100.000 A
Ampères at 240 V, 480 V or 600 V maximum, when protected by Class J fuses (for 240 V
symmetrical
rms
and 480 V models) or special purpose fuses (for 600 V).
3.2.3.2 Dynamic Braking (standard built-in for frame sizes A, B, C and D and optional built-in for frame size E - CFW700...DB...)
Refer to Table B.1 on page 212, Table B.2 on page 213 and Table B.3 on page 214 for
the following dynamic braking specifications: maximum current, resistance, RMS current (*)
and cable gauges.
The power rating of the dynamic braking resistor is a function of the deceleration time, the load
inertia and the resistant torque.
Dynamic braking installing procedure:
Install the braking resistor between the power terminals DC+ and BR.
Use twisted cable for the connection. Separate these cables from the signal and control
cables.
Size the cables according to the application, respecting the maximum and effective currents.
If the braking resistor is installed inside the inverter cabinet, consider its additional dissipated
energy when sizing the cabinet ventilation.
The thermal protection of the dynamic brak ing resistor must be provided ex ternally using a thermal
relay in series with the resistor and/or a thermostat in contact with the resistor frame, connected
so as to switch the input power supply of the inverter, as shown in Figure 3.3 on page 17.
Set P0151 and P0185 to their maximum values (400 V or 800 V) when using dynamic braking.
The DC link voltage actuation level of the dynamic braking is set by parameter P0153 (Dynamic
Braking Level).
16 | CFW700
Power
supply
Contactor
Installation and Connection
CFW700
R
S
T
English
BR
Thermal
Control power
supply
Thermostat
Figure 3.3: Connection of the braking resistor
relay
(*) The effective braking current can be calculated as follows:
I
. √tbr (min)
max
I
=
effect ive
5
3.2.3.3 Output Connections
ATTENTION!
The inverter has an electronic motor overload protection that shall be adjusted
according to the driven motor. When several motors are connected to the
same inverter, install individual overload relays for each motor.
The motor overload protection available for the CFW700 is in accordance
with UL508C as per the following information:
- "Trip" current equal to 1.25 times the motor rated current (P0401) adjusted
in the "Oriented Start-up" menu.
- The maximum value of P0398 (Motor Service Factor) is 1.15.
- Parameters P0156, P0157 and P0158 (Overload Current at 100 %,
50 % and 5 % of the rated speed, respectively) are automatically adjusted
when the parameters P0401 (Motor Rated Current) and/or P0406 (Motor
Ventilation) are changed on the “Oriented Start-up” menu. If the parameters
P0156, P0157 and P0158 are set manually, the maximum allowed value
is 1.05 x P0401.
DC+
Braking
resi stor
CFW700 | 17
Installation and Connection
ATTENTION!
If a disconnect switch or a contactor is installed between the inverter and the
English
motor, never operate them with a spinning motor or with voltage at the inverter
output.
The characteristics of the cable used for the inverter and motor interconnection, as well as
the physical location are extremely important to avoid electromagnetic interference in other
equipment and to not affect the life cycle of motor windings and motor bearings controlled by
inverters.
Keep motor cables away from other cables (signal cables, sensor cables, control cables, etc.),
according to item 3.2.6 Cable Distances on page 23.
Connect a fourth cable between the motor ground and the inverter ground.
When using shielded cables for connecting the motor:
Follow the recommendations of IEC60034-25.
Use low impedance connection to high frequencies to connect the cable shield to ground.
Using parts supplied with the drive. See item below.
For inverter frame sizes A, B and C there is an accessory called “Shielding kit for power
cables PCSx-01” (see section 7.2 ACCESSORIES on page 58), which can be mounted at
the bottom of the cabinet – the Figure 3.4 on page 18 shows an example. The shielding
kit for power cables PCSx-01 goes along with inverters with optional internal C3 RFI filter
(CFW700...C3...). The grounding for the motor cable shield on inverter frame sizes D and E is
already provided in the standard inverter cabinet. This is also provided on the “Nema1 Kits
(KN1x-01)” of the inverter frame sizes A, B and C.
For frame sizes B and C with degree of protection IP55, the accessory "PCSC-03 power
cable shield kit" is available, and for frame size D and E with degree of IP55 use the standard
accessories for shielding. The PCSC-03 shield kit comes with the inverter as optional item N12.
Figure 3.4: Motor cable shielding connection with PCSx-01 accessory
18 | CFW700
Installation and Connection
3.2.4 Grounding Connections
DANGER!
The inverter shall be connected to a Protective Ground (PE).
Use the minimum ground wiring gauge as indicated in the Table B.1 on page
212, Table B.2 on page 213 and Table B.3 on page 214.
Connect the inverter grounding connections to a ground bus bar, to a single
ground point, or to a common grounding point (impedance ≤ 10 Ω).
The neutral conductor of the network shall be solidly grounded; however,
this conductor shall not be used to ground the inverter.
It is necessary to use a copper cable with 10 mm
2
minimum or 2 cables with
the same wire gauge as specified in Table B.1 on page 212, Table B.2 on
page 213 and Table B.3 on page 214 for connecting the inverter to the
ground protection to be in accordance with IEC61800-5-1 since the leakage
current is greater than 3.5 mA AC.
3.2.5 Control Connections
The control connections (analog inputs/outputs and digital inputs/outputs), shall be performed
in connector XC1 of the CC700 Control Board. Functions and typical connections are presented
in Figure 3.5 on page 21.
English
CFW700 | 19
Installation and Connection
Linedrive encoder or push-pull
A
A
+V
English
Blue
White
A
+5 V-ENC
REF+
(1) Refer to Figure 3.5 on page 21 (b) for the open-collector encoder connection.
(2) Refer to Figure 3.5 on page 21 (c) for active low digital inputs connection.
B
Red
Green
Yel lo w
B
B
A
≥5 kΩ
AI1-
AI1+
REF-
(1)
Z
Z
B
Pink
Z
AI2+
GND
GreyZ
Brown
DO2
DO3
DO4
>300 Ω
>300 Ω
RL1-NF
>300 Ω
RL1-C
A - RS-485
GND-ENC
AI2-
rpm
AO1
B - RS-485
amp
AO2
AGND (24 V)
AGND (24 V)
+24 V
DO5
>300 Ω
RL1-N A
+24 V
Active high digital inputs
DI5
GND (24 V)
COM
GND (24 V)
DI1
(2)
DI6
DI7
DI8
DI2
DI3
DI4
(a) Linedrive encoder or push-pull and active high digital inputs
20 | CFW700
Installation and Connection
Open collector encoder
+V(5 V )
A A
+5 V-ENC
Z
Z
Z
B
BBA
(b) Encoder with open collector
output
Figure 3.5: (a) to (c) XC1 connection terminals
Signal
Active low digital inputs
+24 V
DI5
DI6
DI7
GND (24 V)
DI8
English
GND-ENC COM
+24 V
COM
GND (24 V)
DI1
DI2
DI3
DI4
(c) Active low digital inputs
A
A
B
B
Time
Figure 3.6: Sequence of the encoder signals
Refer to Figure A.3 on page 202 to find the control board, the XC1 connector (control
signals), the S1 DIP-switches (to select the type of signal of the analog inputs and outputs)
and S2 (RS-485 network termination) and slots 3 and 5 for accessories (see section 7.2
ACCESSORIES on page 58).
The CFW700 inverters are supplied with the digital inputs configured as active high and the
CFW700 | 21
Installation and Connection
analog inputs and outputs configured for voltage signal 0...10 V.
English
NOTE!
To be able to use the analog input and/or output as current signals, it is
necessary to change the switch S1 and the related parameters as per Table
3.1 on page 22. In order to set the analog inputs to bipolar voltage signal
(-10…10 V), it is necessary to set P0233 and P0238 according to Table 3.1 on
page 22. Refer to the CFW700 programming manual for more information.
Table 3.1: Configuration of the switch for the analog input and output signals selection
Input/
Output
Signal
Voltage S1.2 = OFF
AI1
Current S1.2 = ON
Voltage S1.1 = OFF
AI2
Current S1.1 = ON
Voltage S1.3 = ON
AO1
Current S1.3 = OFF
Voltage S1.4 = ON
AO2
Current S1.4 = OFF
(*) Factory setting.
S1 Switch
Settings
Signal
Range
(*)
0…10 V
(*)
-10…10 V P0233 = 4
P0233 = 0 (direct reference) or 2 (reverse reference).
Parameter Settings
0...20 mA P0233 = 0 (direct reference) or 2 (reverse reference).
4...20 mA P0233 = 1 (direct reference) or 3 (reverse reference).
(*)
0…10 V
(*)
-10…10 V P0238 = 4
P0238 = 0 (direct reference) or 2 (reverse reference).
0...20 mA P0238 = 0 (direct reference) or 2 (reverse reference).
4...20 mA P0238 = 1 (direct reference) or 3 (reverse reference).
(*)
0...10 V
(*)
P0253 = 0 (direct reference) or 2 (reverse reference).
0...20 mA P0253 = 0 (direct reference) or 2 (reverse reference).
4...20 mA P0253 = 1 (direct reference) or 3 (reverse reference).
(*)
0...10 V
(*)
P0256 = 0 (direct reference) or 2 (reverse reference).
0...20 mA P0256 = 0 (direct reference) or 2 (reverse reference).
4...20 mA P0256 = 1 (direct reference) or 3 (reverse reference).
NOTE!
Settings of the S2 switch:
S2.1 = ON and S2.2 = ON: RS-485 is ON.
S2.1 = OFF and S2.2 = OFF: RS-485 is OFF.
The factory default for the S2.1 and S2.2 switches are OFF.
Other combinations of switch S2 are not allowed.
Technical specifications for the encoder and the encoder cable as shown in Table 3.2 on page
23.
22 | CFW700
Installation and Connection
Table 3.2: Technical specifications for the encoder and the encoder cable
Characteristics Specifications
Power supply 5 V
2 channels in qua drature (90º) + zero pulses with co mplementar y outputs
(differentials) or open-collector.
A, A, B, B, Z and Z
Available for 2 channels: A, A, B, B.
If the channel zis not used, leave the terminals XC1: 6 and 7 not
connected. Noother setting are necessary.
The cable shield must be connected to ground through devices on
control shield plate (see Figure 3.5 on page 21).
Encoder
Encoder
cable
Channels
Signals
Output circuit Linedrive type, push-pull or open-collector. Maximum voltage of 12 V.
Isolation Electronic circuit isolated from the encoder frame.
Pulses Recommended number of pulses per rotation = 1024 ppr.
Frequency Maximum allowed = 100 kHz.
Type of cable Balanced cable shield (for differential signals operation).
Connection
Distance ≥ 25 cm of other wiring.
Isolation Use metal conduit.
Length Maximum = 10 m.
Follow instructions below for the proper installation of the control wiring:
1. Wire gauge: 0.5 mm² (20 AWG) to 1.5 mm² (14 AWG).
2. Maximum tightening torque: 0.50 N.m (4.50 lbf.in).
3. Use shielded cables for the connections in XC1 and run the cables separated from the
remaining circuits (power, 110 V / 220 Vac control, etc.), according to item 3.2.6 Cable
Distances on page 23. If control wiring must cross other cables (power cables for instance),
make it cross perpendicular to the wiring and provide a minimum separation of 5 cm (1.9 in)
at the crossing point.
English
Refer to item 3.2.6 Cable Distances on page 23, for the proper cable distances.
Isolate with tape
Inverter
side
Do not ground
(a) Cable shield connection
Figure 3.7: (a) and (b) Shield connection
(b) Connection sample of the shield to
ground
4. Relays, contactors, solenoids or coils of electromechanical brakes installed close to the
inverter may eventually create interferences in the control circuitry. To eliminate this effect,
RC suppressors (with AC power supply) or free-wheel diodes (with DC power supply) shall
be connected in parallel to the coils of these devices.
3.2.6 Cable Distances
The power cables and control cables must be separated (relay output cables and other control
cables) according to Table 3.3 on page 24.
CFW700 | 23
Installation and Connection
Table 3.3: Cable distances
Rated Output
English
Inverter Current
≤ 24 A
≥ 28 A
Cable Length(s)
≤ 100 m (330 ft)
> 100 m (330 ft)
≤ 30 m (100 ft)
> 30 m (100 ft)
Minimum Separation
Distance
≥ 10 cm (3.94 in)
≥ 25 cm (9.84 in)
≥ 10 cm (3.94 in)
≥ 25 cm (9.84 in)
3.3 INSTALLATION ACCORDING TO THE EUROPEAN DIRECTIVE OF ELECTROMAGNETIC COMPATIBILITY
The inverters with C3 option (CFW700...C3...) have internal C3 RFI filter to reduce electromagnetic
interference. These inverters, when properly installed, meet the requirements of “EMC Directive
89/336/EEC” with the 93/68/EEC supplement.
The CFW700 inverter series has been designed only for industrial applications. Therefore, the
emission limits of harmonic currents defined by the standards EN 61000-3-2 and EN 61000-3-2/A
14 are not applicable.
3.3.1 Conformal Installation
1. Inverters with built-in C3 RFI filter CFW700...C3...
2. Frame sizes A to D inverters with built-in C3 RFI filter capacitors grounding screws and frame
size E with J1 cable in the position (XE1). For more information see Figure A.8 on page
208.
3. Shielded output cables (motor cables) and connect the shield at both ends (motor and
inverter) with a low impedance connection for high frequency. Use PCSx-01 kit supplied with
frame sizes A, B and C inverters. For frame sizes B and C with degree of protection IP55,
use the PCSC-03 shield kit. For frame sizes D and E inverters use the clamps supplied with
the product. Ensure good contact between the cable shield and the clamps. Refer to Figure
3.4 on page 18 and keep the proper separation from other cables according to item 3.2.6
Cable Distances on page 23. The maximum motor cable length and conduction and
radiated emission levels are presented at Table B.6 on page 226. Use an external RFI filter
at the input of the inverter if necessary to have a lower emission level and/or a longer motor
cable length. For more information (RFI filter commercial reference, motor cable length and
emission levels) refer to Table B.6 on page 226.
4. Shielded control cables and separate the remaining cables according to item 3.2.6 Cable
Distances on page 23.
5. Inverter grounding according to the instructions on item 3.2.4 Grounding Connections on
page 19.
6. Grounded power supply.
24 | CFW700
3.3.2 Emission and Immunity Levels
Table 3.4: Emission and immunity levels
EMC Phenomenon
Emission:
Mains Terminal Disturbance Voltage
Frequency Range: 150 kHz to 30 MHz)
Electromagnetic Radiation Disturbance
Frequency Range: 30 MHz to 1000 MHz)
Immunity:
Electrostatic Discharge (ESD) IEC 61000-4-2
Fast Transient-Burst IEC 61000-4-4
Conducted Radio-Frequency Common
Mode
Surge Immunity IEC 61000-4-5
Radio-Frequency Electromagnetic Field IEC 61000-4-3
Basic
Standard
IEC/EN61800-3
IEC 61000-4-6
Installation and Connection
Level
It depends on the inverte r model and the motor
cable length.
See Table B.6 on page 226.
4 kV for contact discharge and 8 kV for air
discharge.
2 kV / 5 kHz (coupling capacitor) power input
cables;
1 kV / 5 kHz control cables, and remote
keypad cables;
2 kV / 5 kHz (coupling capacitor) motor output
cables.
0.15 to 80 MHz; 10 V; 80 % AM (1 kHz).
Power supp ly cable, motor, control an d remote
keypad (HMI).
1.2/50 μs, 8/20 μs;
1 kV line-to-line coupling;
2 kV line-to-ground coupling.
80 to 1000 MHz;
10 V/m;
80 % AM (1 kHz).
English
Refer to Table B.6 on page 226 for conducted and radiated emission levels accomplished
with and without external RFI filter. The reference model for the external filter is also presented.
CFW700 | 25
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