WEG CFW-09HD Series User manual

CFW-09HD LINE
DC LINK
POWER SUPPLY
CFW-09HD Line
Addendum to the
CFW-09 Manual

3
CFW-09HD Line
1. CFW-09 DC LINK POWER SUPPLY – HD LINE
- The CFW-09HD line of variable frequency drives with DC link power supply has the same
characteristics in terms of mechanical installation, functions, programming and performance
as the standard CFW-09 line.
- Up to size 5, it is not necessary to use an HD for a DC link power supply. Just supply a standard
drive by the DC link with an external pre-charge circuit.
- Models sizes 6 and up, have a pre-charge circuit and internal modifications.
2. SIMPLIFIED CFW-09HD BLOCK DIAGRAM
Figure 1 presents the simplified CFW-09HD block diagram, for sizes 6 and up.
I. GENERAL INFORMATION
This addendum has information about the CFW-09HD line variable frequency drive with DC
link power supply.
Addendum to the CFW-09 Manual
Figure 1 – Simplified CFW-09HD block diagram
AC Link
Supply
X1
+UD -UD
X1 U V W PE
R S T
M
3~
13
14
For interlocking with a
contactor winding or
circuit breaker minimum
winding
3X33:1
22
21
A1
A2
2827XC1A:
KA1
FN
220V Command
Pre-charge Circuit
Pre-charge and Ventilation
Supply
X1 R S T
L1
L3
L2

4
All the information related to power connection/grounding, wire cross sections and voltage
selection that appears in the CFW-09 manual is valid for the CFW-09HD.
CFW-09HD terminal connections are mechanically similar to those of the CFW-09 line,
however, the identifications and uses are different (figure 3).
- X1 Power connection terminals: R and S are used for the supply of the pre-charge and ventilation;
- Preferably, also supply the T phase, for a faster pre-charge;
- Power supplies R, S and T must be in: 380V, 440V or 480V in 50/60Hz;
- For the 500V - 600V and 660V - 690V models, the supply voltage for the pre-charge/ventilation/
electronics must always be compatible with the motor voltage, except for the drives bigger than
500HP, and supplied by the DC link. In that case the supply voltage is always biphasic 380V.
Refer to the specific manual.
- Supply the motor in the X1 terminals: U, V and W;
- Supply the DC link in the X1 terminals: + UD and -UD;
- For sizes 1 to 7, X1 terminal: BR is used for rheostatic breaking.
Figure 3 - Typical CFW-09HD terminal
R S T U V W +UD -UD
Electronics and
pre-charge ventilation
Motor
3. ELECTRICAL INSTALLATION
NOTE!
In the 200V and 400V lines it is indispensable to select the internal command transformer tap
of the drive. This is set in the LVS1 card for currents up to 142A. Above this current the tap must
be set in the CIP2 card.
- The XC1A connector is located in the control card and the X33 terminal is near the X1 power
connection terminal.
- KA1 is an external auxiliary contactor.
- For sizes 1 to 5, it is necessary to design the pre-charge circuit correctly. The contactor is
commanded via CC9 card (see figure 2). For further information contact WEG.
Vdc
+UD
- UD
CFW-09
Figure 2 – External pre-charge circuit (sizes 1 to 5)

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3.1 POWER WIRING AND FUSES
The pre-charge relay connections are shown in greater detail in figure 4.
The internal pre-charge auxiliary contactor of the CFW-09HD is started by the external auxiliary
contactor and supplied internally in 220V. This 220V supply is galvanically isolated and also serves
to supply the fans. As the internal transformer is not dimensioned to supply another load, it is
necessary to use another external isolated 220V power supply to command the main contactor and
the external auxiliary contactor.
Figure 4 – Pre-charge command connections (XC1A Connector of the CC9)
NOTE!
If the internal pre-charge is used, and consequently the connection described in figure 4, parameter
P277 must be programmed as pre-charge (P277=24).
CT – Constant Torque
VT – Variable Torque
For interlocking with a contactor winding or
circuit breaker minimum winding
21 22 23 24 25 26 27 28 X33 13
A1
KA1
A2
F
N
XC1A
220V
Command
21
22
13
14
Table 1 - Recommended Wiring/Fuses
Rated Current
of the Drive [A]
Power Wiring
[mm2]
CT/VT VT CT/VT VT
Ultra-fast fuse for
semiconductor protection
[A]
I2t of the fuse
[A2s]
@25ºC
3.6 - 1.5 - 15 18
4.0 - 1.5 - 15 18
5.5 - 1.5 - 25 125
6.0 - 2.5 - 25 70
7.0 - 2.5 - 35 130
9.0 - 2.5 - 35 125
10 - 2.5 - 35 130
13 - 2.5 - 50 240
16 - 4 - 50 240
24 - 6 - 63 760
28 - 2X2.5 - 80 920
30 36 10 16 80 1190
38 45 16 16 80 1710
45
220-230V - 16 - 100 2300

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Table 1 (cont.) - Recommended Wiring/Fuses
Rated Current
of the Drive [A]
Power Wiring
[mm2]
CT/VT VT CT/VT VT
Ultra-fast fuse for
semiconductor
protection [A]
I2t of the fuse
[A2s]
@25ºC
45
380-480V
54
380-480V 16 2X6 100 1710
54 68 2X16 2X10 125 4800
60 70 25 35 125 860
70 86 35 2X16 200 8450
86
220-230V
105
220-230V 2X16 70 250 16900
86
380-480V
105
380-480V 50 70 250 3570
105 130 70 95 350 9600
130 150 95 120 350 9600
142 174 95 2X50 350 5130
180 - 2X50 - 350 13800
240 - 2X70 - 450 38000
361 - 2X150 - 700 38000
450 - 2X240 - 900 57000
600 - 3X185 - 1250 76000
211/380-480V - 120 - 450 38000
312/380-480V - 240 - 700 3800
515/380-480V - 2X185 - 1250 76000
107/500-690 147/500-690 50 70 350 9600
147/500-690 196/500-690 70 120 350 13800
211/500-690 - 120 - 450 38000
247/500-690 315/500-690 150 240 450 38000
315/500-690 343/500-690 240 2X70 700 38000
343/500-690 418/500-690 2X70 2X120 900 57000
418/500-690 472/500-690 2X120 2X150 900 57000
472/500-690 555/500-690 2X150 2X240 1250 76000
100/660-690 127/660-690 35 50 350 9600
127/660-690 179/660-690 50 95 350 5130
179/660-690 - 95 - 350 13800
225/660-690 259/660-690 120 2X50 450 38000
259/660-690 350/660-690 2X50 2X70 700 38000
305/660-690 340/660-690 2X70 2X95 700 38000
340/660-690 428/660-690 2X95 2X120 900 57000
428/660-690 - 2X120 - 900 57000
CT – Constant Torque
VT – Variable Torque

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