WEG DeviceNet CFW500 User manual

Frequency Inverter
Convertidor de Frecuencia
Inversor de Frequência
CFW500
Motors | Automation | Energy | Transmission & Distribution | Coatings
User’s Manual
Manual del Usuario
Manual do Usuário
Language: English, Spanish, Portuguese
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User’s Manual
Manual del Usuario
Manual do Usuário
Series/Série: CFW500
English / Español / Português
Document Nº/Documento Nº: 10001278006 / 05
Models/Modelos: Frame A ... D
Tam A ... D
Mec A ... D
Date/Fecha/Data: 11/2014
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Summary of Reviews
English
The information below describes the reviews made in this manual.
Review Description Chapter
00 First edition. -
01 General review and inclusion of the new models. -
02 Modification in Table B.3 on page 145 and in the printing of the filter switch. -
03 General review and inclusion of frame D. -
04 General review. -
05 General review and inclusion of frame C 500 / 600 V. -
NOTE!
The inverters CFW500 have the default parameters set as described below:
60 Hz for models without internal filter.
50 HZ for models with internal filter (check the smart code
E.g.: CFW500A04P3S2NB20C2).
ATTENTION!
Check the frequency of the power supply.
In case the power supply frequency is different from the default frequency
(check P0403), it is necessary to set:
P0204 = 5 for 60 Hz.
P0204 = 6 for 50 Hz.
It is only necessary to set these parameters once.
Refer to the programming manual of the CFW500 for further details about the
setting of parameter P0204.
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Index
English
1 SAFETY INSTRUCTIONS..................................................................1
1.1 SAFETY WARNINGS IN THIS MANUAL................................................ 1
1.2 SAFETY WARNINGS IN THE PRODUCT .............................................. 1
1.3 PRELIMINARY RECOMMENDATIONS ................................................. 2
2 GENERAL INFORMATION ................................................................4
2.1 ABOUT THE MANUAL ........................................................................... 4
2.2 ABOUT THE CFW500............................................................................. 4
2.3 NOMENCLATURE .................................................................................. 7
2.4 IDENTIFICATION LABELS..................................................................... 8
2.5 RECEIVING AND STORAGE.................................................................. 9
3 INSTALLATION AND CONNECTION..............................................11
3.1 MECHANICAL INSTALLATION............................................................ 11
3.1.1 Environmental Conditions ......................................................... 11
3.1.2 Positioning and Mounting.......................................................... 11
3.1.2.1 Cabinet Mounting ........................................................... 12
3.1.2.2 Surface Mounting........................................................... 12
3.1.2.3 DIN-Rail Mounting.......................................................... 12
3.2 ELECTRICAL INSTALLATION ............................................................. 12
3.2.1 Identification of the Power Terminals and Grounding Points... 13
3.2.2 Power and Grounding Wiring, Circuit Breakers and Fuses.. 14
3.2.3 Power Connections.................................................................... 15
3.2.3.1 Input Connections.......................................................... 16
3.2.3.2 Inductor of the DC Link/ Reactance of the Power
Supply .......................................................................................... 16
3.2.3.3 IT Networks..................................................................... 17
3.2.3.4 Dynamic Braking............................................................ 17
3.2.3.5 Output Connections ...................................................... 19
3.2.4 Grounding Connections ............................................................ 20
3.2.5 Control Connections ................................................................. 20
3.2.6 Cable Separation Distance....................................................... 23
3.3 INSTALLATIONS ACCORDING TO EUROPEAN DIRECTIVE OF
ELECTROMAGNETIC COMPATIBILITY .................................................. 23
3.3.1 Conformal Installation .............................................................. 23
3.3.2 Emission and Immunity Levels................................................. 24
4 HMI (KEYPAD) AND BASIC PROGRAMMING ............................ 25
4.1 USE OF THE HMI TO OPERATE THE INVERTER .............................. 25
4.2 INDICATIONS ON THE HMI DISPLAY ................................................ 26
4.3 OPERATING MODES OF THE HMI .................................................... 27
5 POWERING UP AND STARTUP..................................................... 29
5.1 PREPARATION AND POWERING UP.................................................. 29
5.2 STARTUP .............................................................................................. 30
5.2.1 STARTUP Menu .......................................................................... 30
5.2.1.1 V/f Control Type (P0202 = 0) ......................................... 30
5.2.1.2 VVW Control Type (P0202 = 5) ................................... 31
5.2.2 Menu BASIC – Basic Application ............................................. 33
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Index
English
6 TROUBLESHOOTING AND MAINTENANCE................................ 34
6.1 FAULT AND ALARMS ........................................................................... 34
6.2 SOLUTIONS FOR THE MOST FREQUENT PROBLEMS ................... 34
6.3 DATA TO CONTACT THE TECHNICAL ASSISTANCE ....................... 34
6.4 PREVENTIVE MAINTENANCE............................................................. 35
6.5 CLEANING INSTRUCTIONS ............................................................... 36
7 OPTIONAL KITS AND ACCESSORIES ....................................... 38
7.1 OPTIONAL KITS ................................................................................... 38
7.1.1 RFI Filter ....................................................................................... 38
7.1.2 Protection Rate Nema1 ............................................................. 38
7.2 ACCESSORIES...................................................................................... 38
8 TECHNICAL SPECIFICATIONS .................................................... 40
8.1 POWER DATA ....................................................................................... 40
8.2 ELECTRONICS/GENERAL DATA ........................................................ 40
8.2.1 Codes and Standards ................................................................ 42
APPENDIX A – FIGURES..................................................................137
APPENDIX B – TECHNICAL SPECIFICATIONS .............................141
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CFW500 | 1
Safety Instructions
English
1 SAFETY INSTRUCTIONS
This manual contains the information necessary for the correct use of the frequency inverter
CFW500.
It was developed to be operated by people with proper technical training or qualification to
handle this kind of equipment. Those people must follow the safety instructions defined by
local standards. The noncompliance with the safety instructions may result in death risks and/
or damages to the equipment.
1.1 SAFETY WARNINGS IN THIS MANUAL
DANGER!
The procedures recommended in this warning aim at protecting the user against
death, serious injuries and considerable material damages.
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 aim at preventing material
damages.
NOTE!
The information mentioned in this warning is important for the proper
understanding and good operation of the product.
1.2 SAFETY WARNINGS IN THE PRODUCT
High voltages present.
Components sensitive to electrostatic discharges. Do not touch them.
The connection to the protection grounding is required (PE).
Connection of the shield to the grounding.
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2 | CFW500
Safety Instructions
English
1.3 PRELIMINARY RECOMMENDATIONS
DANGER!
Always disconnect the general power supply before changing any electric
component associated to the inverter. Many components may remain loaded
with high voltages and/or moving (fans), even after the AC power supply input is
disconnected or turned off. Wait for at least ten minutes in order to guarantee the
full discharge of the capacitors. Always connect the grounding point of the inverter
to the protection grounding.
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. Toujours
connecter le point de mise à la terre du variateur sur la mise à la terre de protection.
NOTES!
Frequency inverters may interfere in other electronic equipment. Observe the
recommendations of Chapter 3 INSTALLATION AND CONNECTION on page
11 in order to minimize these effects.
Read the entire manual before installing or operating this inverter.
Do not execute any applied potential test on the inverter!
If necessary, contact WEG.
ATTENTION!
The electronic cards have components sensitive to electrostatic discharges.
Do not touch the components or connectors directly. If necessary, first touch the
grounding point of the inverter which must be connected to the protection ground
or use a proper grounding strap.
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.
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CFW500 | 3
General Information
English
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.
DANGER!
Risque d'écrasement
Afin d'assurer la sécurité dans les applications de levage de charges, les
équipements électriques et/ou mécaniques doivent être installés hors du variateur
pour éviter une chute accidentelle des charges.
DANGER!
Ce produit n'est pas conçu pour être utilisé comme un élément de sécurité. Des
précautions supplémentaires doivent être prises afin d'éviter des dommages
matériels ou corporels.
Ce produit a été fabriqué sous un contrôle de qualité conséquent, mais s'il est installé
sur des systèmes où son dysfonctionnement entraîne des risques de dommages
matériels ou corporels, alors des dispositifs de sécurité externes supplémentaires
doivent assurer des conditions de sécurité en cas de défaillance du produit, afin
d'éviter des accidents.
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4 | CFW500
General Information
English
2 GENERAL INFORMATION
2.1 ABOUT THE MANUAL
This manual contains information for the proper installation and operation of the inverter, as well
as start-up procedures, main technical features and how to identify the most usual problems
of the different models of inverters of the line CFW500.
ATTENTION!
The operation of this equipment requires detailed installation and operation
instructions provided in the user’s manual, programming manual and
communication manuals. The user’s manual and the quick reference of the
parameters are supplied at the purchase of the inverter, while the guides are
supplied with their respective accessories. Other manuals are supplied in
CD-ROM only, which comes with the inverter or can be downloaded in WEG’s
website - www.weg.net. This CD must be always kept with this equipment.
A printed copy of the files available in the CD can be requested at your local
WEG dealer.
NOTE!
It is not the intention of this manual to present all the possibilities for the
application of the CFW500, as well as WEG cannot take any liability for the use
of the CFW500 which is not based on this manual.
Part of the figures and tables are available in the appendixes, which are divided into APPENDIX
A – FIGURES on page 137 and APPENDIX B – TECHNICAL SPECIFICATIONS on page 141.
The information is presented in three languages.
2.2 ABOUT THE CFW500
The frequency inverter CFW500 is a high-performance product which allows the speed and
torque control of three-phase induction motors. This product provides the user with the options
of vector (VVW) or scalar (V/f) control, both programmable according to the application.
In the vector mode (VV W), the operation is optimized for the motor in use, obtaining a better
performance in terms of speed regulation.
The scalar mode (V/f) is recommended for simpler applications, such as the activation of most
pumps and fans. The V/f mode is used when more than a motor is activated by an inverter
simultaneously (multimotor applications).
The frequency inverter CFW500 also has functions of PLC (Programmable Logic Controller)
by means of the SoftPLC (integrated) feature. For further details regarding the programming of
those functions, refer to the SoftPLC user's manual of the CFW500.
The main components of the CFW500 can be viewed in the block diagram Figure 2.1 on page
5for Frames A, B, and C, and Figure 2.2 on page 6 for Frame D.
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CFW500 | 5
General Information
English
Analog input
(AI1) (*)
Digital inputs
(DI1 to DI4) (*)
Supplies for electronics and interfaces
between power and control
RS-485
PC
POWER
Single-phase /
three-phase
rectifier
Internal
RFI filter
(available in
the inverters
CFW500...C...)
Motor
U/T1
V/T2
W/T3
+UD -UD
BR
Inverter with
insulated gate bipolar
transistors and
current feedback
Power
supply
R/L1/L
S/L2/N
T/L3


= Bus connection CC (**)
= Connection for brake resistor (**)


Preload
Software WLP
SUPERDRIVE (*)
MODBUS
Capacitor bank link CC
Braking IGBT (available in the inverters
CFW500...DB...)
HMI
CPU
32 bits
"RISC"
EEPROM
(memory)
User’s
Plug-in
card
Interfaces
(RS-232,
RS-485
or USB)
Analog output
(AO1) (*)
Power supply 24 V
Power supply 10 V
Digital output
DO1 (RL1)
Digital output
DO2 (TR) (*)
HMI (remote)
Power Supply (**)
PE
PE
Memory card (MCard)
Accessory
CONTROL
CONTROL
STANDARD PLUG-IN
= Human-machine interface
(*) The number of analog/digital inputs/outputs, as well as other resources, may vary according to the plug-in module used.
For further information, refer to the guide supplied with the accessory or the CD-ROM.
(**) Not available in frame A.
Figure 2.1: Block diagram of CFW500 for Frames A, B and C
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6 | CFW500
General Information
English
Analog input
(AI1) (*)
Digital inputs
(DI1 to DI4) (*)
Supplies for electronics and interfaces
between power and control
RS-485
PC
POWER
Single-phase /
three-phase
rectifier
Brake resistor (optional)
Inductor of the DC link (optional)
Internal
RFI filter
(available in
the inverters
CFW500...C...)
Motor
U/T1
V/T2
W/T3
+UD -UD
BR
Inverter with
insulated gate bipolar
transistors and
current feedback
Power
supply
R/L1/L
S/L2/N
T/L3


= Bus connection CC (**)
= Connection for brake resistor (**)


Preload
Software WLP
SUPERDRIVE (*)
MODBUS
Capacitor bank link CC
Braking IGBT (available in the inverters
CFW500...DB...)
HMI
CPU
32 bits
"RISC"
EEPROM
(memory)
User’s
Plug-in
card
Interfaces
(RS-232,
RS-485
or USB)
Analog output
(AO1) (*)
Power supply 24 V
Power supply 10 V
Digital output
DO1 (RL1)
Digital output
DO2 (TR) (*)
HMI (remote)
Power Supply (**)
PE
PE
Memory card (MCard)
Accessory
CONTROL
CONTROL
STANDARD PLUG-IN
= Human-machine interface
(*) The number of analog/digital inputs/outputs, as well as other resources, may vary according to the plug-in module used.
For further information, refer to the guide supplied with the accessory or the CD-ROM.
(**) Not available in frame A.
Figure 2.2: Block diagram of CFW500 for Frame D
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CFW500 | 7
General Information
English
2.3 NOMENCLATURE
Table 2.1: Nomenclature of the inverters CFW500
Product
and
Series
Identification of the Model
Brake (*) Protection
Rate (*)
Conducted
Emission
Level (*)
Hardware
Version
Special Software
Version
Frame Rated
Current
No of
Phases
Rated
Voltage
Eg.: CFW500 A02P6 T 4 NB 20 C2 --- --
Available options.
CFW500
See Table 2.2 on page 8.Blank = standard.
NB = without dynamic braking. Sx = special software.
DB = with dynamic braking. Blank = standard plug-in module.
20 = IP20. H00 = without plug-in.
N1 = cabinet Nema1 (type 1 as per UL) (protection rate
according to standard IEC IP20).
Blank = it does not meet the levels of
standards for conducted emission.
C2 or C3 = as per category 2 (C2) or 3 (C3)
of IEC 61800-3, with internal RFI filter.
(*) The available options for each model are in Table 2.2 on page 8.
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8 | CFW500
General Information
English
Table 2.2: Available options for each field of the nomenclature according to the rated current and voltage
of the inverter
Frame Output Rated
Current N° of Phases Rated Voltage
Available Options for the Remaining Identification
Codes of the Inverters
Brake Protection
Rate
Conducted
Emission Level
Hardware
Version
A
01P6 = 1.6 A
S = single-phase
power supply.
2 = 200... 240 V
NB
20 or N1
Blank or C2
Blank or
H00
02P6 = 2.6 A
04P3 = 4.3 A
07P0 = 7.0 A Blank or C3
B07P3 = 7.3 A DB C2
10P0 = 10 A
A
01P6 = 1.6 A
B = single-phase
or three-phase
power supply.
NB
Blank
02P6 = 2.6 A
04P3 = 4.3 A
B07P3 = 7.3 A DB
10P0 = 10 A
A07P0 = 7.0 A
T = three-phase
power supply.
NB
09P6 = 9.6 A
B 16P0 = 16 A
DB
C 24P0 = 24 A
D
28P0 = 28 A
Blank or C333P0 = 33 A
47P0 = 47 A
A
01P0 = 1.0 A
T = three-phase
power supply.
4 = 380...480 V
NB Blank or C2
01P6 = 1.6 A
02P6 = 2.6 A
04P3 = 4.3 A
06P1 = 6.1 A Blank or C3
B
02P6 = 2.6 A
DB Blank or C204P3 = 4.3 A
06P5 = 6.5 A
10P0 = 10 A Blank or C3
C14P0 = 14 A T = three-phase
power supply. DB Blank or C2
16P0 = 16 A
D24P0 = 24 A T = three-phase
power supply. DB Blank or C3
31P0 = 31 A
C
01P7 = 1.7 A
T = three-phase
power supply. 5 = 500...600 V DB 20 or N1 Blank Blank or H00
03P0 = 3.0 A
04P3 = 4.3 A
07P0 = 7.0 A
10P0 = 10 A
12P0 = 12 A
2.4 IDENTIFICATION LABELS
There are two identification labels, one complete nameplate, located on the side of the inverter
and a simplified label under the plug-in module. The label under the plug-in module allows the
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CFW500 | 9
General Information
English
identification of the most important characteristics of the inverter even in inverters mounted
side-by-side. For further details about the position of the labels, see Figure A.2 on page 139.
Front Label of the CFW500 (Under the Plug-In Module)
Model (Smart code
of the Inverter)
Stock item
Manufacturing date
Serial number
Side Label of the CFW500
Manufacturing date
Production order
Rated input data
(voltage, current
and frequency)
Rated input data
(voltage, current
and frequency)
Serial number
WEG stock item
Model (Smart code
of the inverter)
Figure 2.3: Description of the identification labels on the CFW500
2.5 RECEIVING AND STORAGE
The CFW500 is supplied packed in a cardboard box. On this package, there is an identification
label which is the same as the one attached to the side of the inverter.
Check if:
The identification of the CFW500 matches the model purchased.
Any damages occurred during transportation.
Report any damage immediately to the carrier.
If the CFW500 is not installed soon, store it in a clean and dry location (temperature between
-25 °C and 60 °C (-77 ºF and 140 ºF)), with a cover to prevent dust accumulation inside it.
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10 | CFW500
General Information
English
ATTENTION!
When the inverter is stored for a long period, it becomes necessary to perform
the capacitor reforming. Refer to the procedure recommended in Section 6.4
PREVENTIVE MAINTENANCE on page 35 – of this manual.
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CFW500 | 11
Installation and Connection
English
3 INSTALLATION AND CONNECTION
3.1 MECHANICAL INSTALLATION
3.1.1 Environmental Conditions
Avoid:
Direct exposure to sunlight, rain, high humidity or sea-air.
Inflammable or corrosive liquids or gases.
Excessive vibration.
Dust, metallic particles or oil mist.
Environmental conditions permitted for the operation of the inverter:
Temperature surrounding the inverter: from -10 ºC (14 ºF) to the nominal temperature specified
in Table B.2 on page 143.
For temperatures surrounding the inverter higher than the specifications above, it is necessary
to apply a 2 % of current derating for each Celsius degree, limited to an increase of 10 ºC (50 ºF).
Air relative humidity: 5 % to 95 % 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) - 1 % of current derating for each 100 m (328 ft)
above 1000 m of 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, 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 EN 50178 and UL 508C), with non-conductive pollution.
Condensation must not originate conduction through the accumulated residues.
3.1.2 Positioning and Mounting
The external dimensions and the drilling for the mounting, as well as the net weight (mass) of
the inverter are presented in Figure B.1 on page 149. For further details of each frame, refer
to Figure B.4 on page 153, Figure B.5 on page 154, Figure B.6 on page 155 and Figure
B.7 on page 156.
Mount the inverter in the upright position on a flat and vertical surface. First, put the screws on
the surface where the inverter will be installed, install the inverter and then tighten the screws
observing the maximum torque for the screws indicated in Figure B.1 on page 149.
Allow the minimum clearances indicated in Figure B.2 on page 151, in order to allow the cooling
air circulation. Do not install heat sensitive components right above the inverter.
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12 | CFW500
Installation and Connection
English
ATTENTION!
When installing two or more inverters vertically, respect the minimum
clearance A + B (as per Figure B.2 on page 151) and provide an air deflecting
plate so that the heat rising up from the bottom inverter does not affect the
top inverter.
Provide independent conduits for the physical separation of signal, control,
and power cables (refer to the Section 3.2 ELECTRICAL INSTALLATION on
page 12).
3.1.2.1 Cabinet Mounting
For inverters installed inside cabinets or metallic boxes, provide proper exhaustion, so that the
temperature remains within the allowed range. Refer to the dissipated powers in Table B.2 on
page 143.
As a reference, Table 3.1 on page 12 shows the air flow of nominal ventilation for each frame.
Cooling Method: fan with air flow upwards.
Table 3.1: Air flow of the fan
Frame CFM I/s m3/min
A20 9.4 0.56
B30 14.1 0.85
C30 14.1 0.85
D (T2)* 100 47.2 2.83
D (T4)** 80 37. 8 2.27
(*) T2 - CFW500 Frame D line 200 V (200...240 V).
(**) T4 - CFW500 Frame D line 400 V (380...480 V).
3.1.2.2 Surface Mounting
Figure B.2 on page 151 illustrates the procedure for the installation of the CFW500 on the
mounting surface.
3.1.2.3 DIN-Rail Mounting
In frames A, B and C, the inverter CFW500 can also be mounted directly on 35-mm rail as per
DIN EN 50.022. For this mounting, you must first position the lock(*) down and then place the
inverter on the rail, position the lock(*) up, fixing the inverter.
(*) The fastening lock of the inverter on the rail is indicated with a screwdriver in Figure B.2 on page 151.
3.2 ELECTRICAL INSTALLATION
DANGER!
The following information is merely a guide for proper installation. Comply
with applicable local regulations for electrical installations.
Make sure the power supply is disconnected before starting the installation.
The CFW500 must not be used as an emergency stop device. Provide other
devices for that purpose.
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CFW500 | 13
Installation and Connection
English
DANGER!
Les informations suivantes constituent uniquement un guide pour une
installation correcte. Respectez les réglementations locales en vigueur pour
les installations électriques.
Vérifiez que l'alimentation secteur CA est débranchée avant de commencer
l'installation.
Le CFW500 ne devra pas être utilisé comme un dispositif d'arrêt d'urgence.
Utilisez des dispositifs additionnels appropriés dans ce but.
ATTENTION!
Integral solid state short circuit protection does not provide branch circuit
protection. Branch circuit protection must be provided in accordance with
applicable local codes.
3.2.1 Identification of the Power Terminals and Grounding Points
The power terminals can be of different sizes and configurations, depending on the model of
the inverter, according to Figure B.3 on page 152. The location of the power, grounding and
control connections are shown in Figure A.3 on page 140.
Description of the power terminals:
L/L1, N/L2 and L3 (R, S, T): AC power supply. Some models of voltage 200-240 V (see
option of models in Table B.1 on page 141) can operate in 2 or 3 phases (single-phase/
three-phase inverters) without derating of the rated current. In this case, the AC power supply
can be connected to two of the three input terminals without distinction. For the single-phase
models only, the power voltage must be connected to L/L1 and N/L2.
U, V, W: connection for the motor.
-UD: negative pole of the voltage of the DC bus.
BR: connection of the brake resistor.
+UD: positive pole of the voltage of the DC bus.
DCR: connection to the external DC link inductor (optional). Only available for models 28 A,
33 A, 47 A / 200-240 V and 24 A and 31 A / 380-480 V.
The maximum torque of the power terminals and grounding points must be checked in Figure
B.3 on page 152.
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14 | CFW500
Installation and Connection
English
3.2.2 Power and Grounding Wiring, Circuit Breakers and Fuses
ATTENTION!
Use proper cable lugs for the power and grounding connection cables.
Refer to Table B.1 on page 141 for recommended wiring, circuit breakers
and fuses.
Keep sensitive equipment and wiring at a minimum distance of 0.25 m from the
inverter and from the cables connecting the inverter to the motor.
It is not recommended the use of mini circuit breakers (MDU), because of
the actuation level of the magnet.
ATTENTION!
Residual Current Device (RCD):
When installing an RCD to guard against electrical shock, only devices with
a trip current of 300 mA should be used on the supply side of the inverter.
Depending on the installation (motor cable length, cable type, multimotor
configuration, etc.), the RCD protection may be activated. Contact the RCD
manufacturer for selecting the most appropriate device to be used with
inverters.
NOTE!
The wire gauges listed in Table B.1 on page 141 are orientative values.
Installation conditions and the maximum permitted voltage drop must be
considered for the proper wiring sizing.
In order to meet UL requirements, use ultra fast fuses at the inverter supply
with a current not higher than the values presented in Table B.1 on page 141.
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CFW500 | 15
Installation and Connection
English
3.2.3 Power Connections
Shield
PE
Disconnecting
switch Fuses
R
S
T
Input power
supply
PE WVU
RBRS T U-Ud +Ud V W
PEPE (*)
(*) The power terminals -Ud, BR and +Ud are not available in models of frame A.
(a) Frame A, B and C
Shield
PE
Disconnecting
switch Fuses
R
S
T
Input power
supply
PE WVU
RBR DCR S T U-Ud +Ud V W
PEPE
(b) Frame D
Figure 3.1: (a) and (b) Power and grounding connections
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