Quick Installation Guide
CFW500 Frequency
Inverter
1 SAFETY INSTRUCTIONS
This quick installation guide contains the basic information necessary to commission the CFW500. It has been
written to be used by qualified personnel with suitable training or technical qualification for operating this type of
equipment. The personnel shall follow all the safety instructions described in this manual defined by the local
regulations. Failure to comply with the safety instructions may result in death, serious injury, and/or equipment
damage.
2 SAFETY WARNINGS IN THIS MANUAL AND IN THE PRODUCT
DANGER!
The procedures recommended in this warning aim at protecting the user against death, serious
injuries and considerable material damages.
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.
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.
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.
NOTE!
Frequency Inverter may interfere with other electronic equipment. Follow the precautions
recommended in manual available in
www.weg.net
.
NOTE!
It is not the intention of this guide 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 guide.
For further information about installation, full parameter list and recommendations, visit the website
www.weg.net
.
Do not execute any applied potential test on the inverter!
If necessary, contact WEG.
ATTENTION!
Electronic boards have components sensitive to electrostatic discharges.
Do not touch directly on components or connectors. If necessary, first touch the grounding point
of the inverter, which must be connected to the protection earth (PE) 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.
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.
ATTENTION!
The operation of this equipment requires detailed installation and operation instructions provided in
the user's manual, programming manual and communication manuals.
4 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 (VVW), 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).
5 NOMENCLATURA
Table 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
N
o
of
Phases
Rated
Voltage
Ex.: CFW500
A
02P6
T
4
NB
20
C2
---
---
A
va
ila
ble
op
tion
s
CFW500
See Table 2
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
Table 2:
Available options for each field of the nomenclature according to the rated current and voltage of the inverter
Fr
a
m
e
Output Rated
Current
N° de 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 = singlephase
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
B
07P3 = 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
B
07P3 = 7,3 A
DB
10P0 = 10 A
A
07P0 = 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 C3
33P0 = 33 A
47P0 = 47 A
E
56P0 = 56 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 C2
04P3 = 4,3 A
06P5 = 6,5 A
10P0 = 10 A
Blank or C3
C
14P0 = 14 A
Blank or C2
16P0 = 16 A
D
24P0 = 24 A
Blank or C3
31P0 = 31 A
E
39P0 = 39 A
49P0 = 49 A
C
01P7 = 1,7 A
5 = 500...600 V
Blank
03P0 = 3,0 A
04P3 = 4,3 A
07P0 = 7,0 A
10P0 = 10 A
12P0 = 12 A
6 IDENTIFICATION LABEL
Production order
Rated input data
(voltage, current
and frequency)
Serial number
Manufacturing date
Rated output data
(voltage, current and
frequency)
WEG stock item
Model (Smart code
of the inverter)
Figure 1:
Description of the identification labels on the CFW500
7 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.
ATTENTION!
When the inverter is stored for a long period, it becomes necessary to perform the capacitor
reforming. Refer to the procedure recommended in
www.weg.net
.
8 INSTALLATION AND CONNECTION
8.1 Environmental Conditions:
Avoid:
Direct exposure to sunlight, rain, high humidity or sea-air.
I nflammable 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.
For temperatures surrounding the inverter higher than the specifications in Table B.2 in the user's manual, it is
necessary to apply of 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.
8.2 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 2.
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 2.
Allow the minimum clearances indicated in Figure 3, in order to allow the cooling air circulation. Do not install heat
sensitive components right above the inverter.
P
L
A
B
H
Side view
Front view
Viies of the mounting base
D
C
Frame
A
B
C
D
H
L
P
Weight
Mounting
Bolt
Recommended
Torque
mm (in) mm (in) mm (in) mm (in) mm (in)
mm (in)
mm (in)
kg (lb)
N.m (Ibf.in)
A
50
(1,97)
175
(6,89)
11,9
(0,47)
7,2
(0,28)
189
(7,44)
75
(2,95)
150
(5,91)
0,8 (1,76)
(1)
M4
2 (17,7)
B
75
(2,95)
185
(7,30)
11,8
(0,46)
7,3
(0,29)
199
(7,83)
100
(3,94)
160
(6,30)
1,2 (2,65)
(1)
M4
2 (17,7)
C
100
(3,94)
195
(7,70)
16,7
(0,66)
5,8
(0,23)
210
(8,27)
135
(5,31)
165
(6,50)
2 (4,4)
M5
3 (26,5)
D
125
(4,92)
290
(11,41)
27,5
(1,08)
10,2
(0,40)
306,6
(12,1)
180
(7,08)
166,5
(6,55)
4,3 (0,16)
M6
4,5 (39,82)
E
150
(5.9)
330
(13)
34
(1.34)
10.6
(0.4)
350
(13.8)
220
(8.7)
191.5
(7.5)
10 (22.05)
M6
4.5 (39.82)
Dimension tolerance: ±1,0 mm (±0,039 in)
(1)
This value refers to the heaviest weight of the frame size.
Figure 2:
Inverter dimensions for mechanical installation
(a) Surface mounting
(b) DIN rail mounting (Only Sizes A, B, C)
C
D
B
A
(c) Minimum ventilation free spaces
Frame
A
B
C
D
mm (in)
mm (in)
mm (in)
mm (in)
A
15 (0.59)
40 (1.57)
30 (1.18)
10 (0.39)
(1)
B
35 (1.38)
50 (1.97)
40 (1.57)
15 (0.59)
(1)
C
40 (1.57)
50 (1.97)
50 (1.97)
30 (1.18)
D
40 (1.57)
50 (1.97)
50 (1.97)
40 (1.57)
E
110 (4.33)
130 (5.11)
50 (1.96)
40 (1.57)
Dimension tolerance: ±1,0 mm (±0,039 in)
(1)
It is possible to mount inverters side by side without lateral free space (D = 0), however with maximum ambient temperature of 40 ºC ( 104 ºF).
Figure 3:
(a) to (c) - Mechanical installation data (surface mounting and minimum ventilation free espaces)
ATTENTION!
When installing two or more inverters vertically, respect the minimum clearance A + B (as per
Figure 3) 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 Chapter 9 ELECTRICAL INSTALLATION).
8.3 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 3 shows the air flow of nominal ventilation for each frame.
Cooling Method:
fan with air flow upwards.
Table 3:
Air flow of the fan
Frame
CFM
I/s
m
3
/min
A
20
9.4
0.56
B
30
14.1
0.85
C
30
14.1
0.85
D (T2)*
100
47.2
2.83
D (T4)**
80
37.8
2.27
E
180
84.5
5.09
(*)
T2 - CFW500 frame D line 200 V (200...240 V).
(**)
T4 - CFW500 frame D line 400 V (380...480 V).
8.4 Surface Mounting
Figure 3 illustrates the procedure for the installation of the CFW500 on the mounting surface.
8.5 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 3.
9 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.
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.
9.1 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 Table 4. The maximum torque of the power terminals and grounding points must be checked in Table 4.
Table 4:
Power terminals, grounding points and recommended tightening torque
Frame
Power Supply
Recommended Torque
Grounding Points
Power Terminals
N.m
Lbf.in
N.m
Lbf.in
A
200...240 V
0,5
4,34
0,5
4,34
380...480 V
0,5
4,34
0,5
4,34
B
200...240 V
0,5
4,34
0,5
4,34
380...480 V
0,5
4,34
0,5
4,34
C
200...240 V
0,5
4,34
1,7
15,00
380...480 V
0,5
4,34
1,8
15,93
500...600V
0,5
4,34
1,0
8,68
D
200...240 V
0,5
4,34
2,4
21,24
380...480 V
0,5
4,34
1,76
15,57
E
200...240 V
0.5
4.34
3.05
27
380...480 V
0.5
4.34
3.05
27
Description of the power terminals:
L/L1, N/L2, L3 (R,S y T):
AC power supply. Some models of voltage 200-240 V (see option of models in Table 10)
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.
+UD:
positive pole of the voltage of the DC bus.
BR:
connection of the brake resistor.
DCR:
connection to the external DC link inductor (optional). Only available for models 28 A, 33 A, 47 A and 56 A /
200-240 V and 24 A, 31 A, 39 A and 49 A / 380-480 V.
9.2 Power and Grounding Wiring, Circuit Breakers and Fuses
ATTENTION!
Use proper cable lugs for the power and grounding connection cables. Refer to Table 10 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 10 sare 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 (for frame sizes A, B and C), and use fuse type J
or circuit breaker (for frame sizes D and E) fuses at the inverter supply with a current not higher
than the values presented in Table 10.
9.3 Power Connections
T
PE
W
U V
W
U V
PE
Input
power
supply
Fuses
Disconnecting
switch
Shield
-UD
DCR
+UD
BR
PE
T
S
R
V
PE
U
W
R
S
T
PE
Fuses
Disconnecting
switch
Shield
(*)
The power terminals -Ud, BR and +Ud are not available in models of frame A.
PE
(*)
PE
V
PE
U
W
R S
+Ud
BR
-Ud
T
(a) Frames A, B and C
(b) Frames D and E
U V W
U V W
PE
Input
power
supply
R
S
Figure 4:
(a) and (b) - Power and grounding connections
9.3.1 Input Connections
DANGER!
Provide a disconnect device for the inverter power supply. This device must cut off the power supply
whenever necessary (during maintenance for instance).
ATTENTION!
The power supply that feeds the inverter must have a grounded neutral. In case of IT networks,
follow the instructions described in the user's manual.
NOTE!
The input power supply voltage must be compatible with the inverter rated voltage.
Power factor correction capacitors are not needed at the inverter input (L/L1, N/L2, L3 or R, S,
T) and must not be installed at the output (U, V, W).
Power supply capacity
Suitable for use in circuits capable of delivering not more than 30.000 Arms symmetrical (200 V, 480 V or 600 V),
when protected by fuses as specified in Table 10.
9.3.2 Inductor of the DC Link/ Reactance of the Power Supply
In order to prevent damages to the inverter and assure the expected useful life, you must have a minimum
impedance that provide a voltage drop of the input power supply of 1 %. If the impedance of the input power
supply (due to the transformers and cabling) is below the values listed in this table, we recommend the use of
reactance in the input power supply.
English
13348698
