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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.
XC1A
21 22 23 24 25 26 27 28
220V
Command
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).
3.1 POWER WIRING AND FUSES
Rated Current
of the Drive [A]
CT/VT
3.6
4.0
5.5
6.0
7.0
9.0
10
13
16
24
28
30
38
45
220-230V
CT – Constant Torque
VT – Variable Torque
A1
KA1
A2
F
N
Power Wiring
[mm
2
]
semiconductor protection
VT
CT/VT
VT
-
1.5
-
-
1.5
-
-
1.5
-
-
2.5
-
-
2.5
-
-
2.5
-
-
2.5
-
-
2.5
-
-
4
-
-
6
-
-
2X2.5
-
36
10
16
45
16
16
-
16
-
Table 1 - Recommended Wiring/Fuses
X33
1 3
21
22
For interlocking with a contactor winding or
circuit breaker minimum winding
Ultra-fast fuse for
[A]
15
15
25
25
35
35
35
50
50
63
80
80
80
100
13
14
I
2
t of the fuse
[A
2
s]
@25ºC
18
18
125
70
130
125
130
240
240
760
920
1190
1710
2300
5
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