CABLING AND CONNECTIONS
vacon • 45
6
6.1.1.2
DC supply and brake resistor cables
Vacon AC drives are equipped with terminals for the DC supply and an optional external brake resistor.
These terminals are marked with B–, B+/R+ and R–. The DC bus connection is made to terminals B– and
B+ and the brake resistor connection to R+ and R–. Note that the DC connection is optional for drives
greater than FR8.
6.1.1.3
Control cable
For information on control cables see Chapter 6.2.1.1 and Table 6-1.
6.1.1.4
Cable and fuse sizes, NX_2 and NX_5, FR4 to FR9
The table below shows typical cable sizes and types that can be used with the converter. The final selection
should be made according to local regulations, cable installation conditions and cable specification.
Frame
Type
I
L
[A]
Fuse
[A]
Mains and
motor cable
Cu [mm
2
]
Terminal cable size
Main terminal
[mm
2
]
Earth terminal
[mm
2
]
FR4
NX0004 2—0008 2
NX0003 5—0009 5
3—8
3—9
10
3*1.5+1.5
1—4
1—4
NX0011 2—0012 2
NX0012 5
11—12
12
16
3*2.5+2.5
1—4
1—4
FR5
NX0017 2
NX0016 5
17
16
20
3*4+4
1—10
1—10
NX0025 2
NX0022 5
25
22
25
3*6+6
1—10
1—10
NX0031 2
NX0031 5
32
31
35
3*10+10
1—10
1—10
FR6
NX0048 2
NX0038 5—0045 5
48
38—45
50
3*10+10
2.5—50 Cu
6—50 Al
2.5—35
NX0061 2
NX0061 5
61
63
3*16+16
2.5—50 Cu
6—50 Al
2.5—35
FR7
NX0075 2
NX0072 5
75
72
80
3*25+16
2.5—50 Cu
6—50 Al
6—70
NX0088 2
NX0087 5
88
87
100
3*35+16
2.5—50 Cu
6—50 Al
6—70
NX0114 2
NX0105 5
114
105
125
3*50+25
2.5—50 Cu
6—50 Al
6—70
FR8
NX0140 2
NX0140 5
140
160
3*70+35
25—95 Cu/Al
25—95
NX0170 2
NX0168 5
168
200
3*95+50
95—185 Cu/Al
25—95
NX0205 2
NX0205 5
205
250
3*150+70
95—185 Cu/Al
25—95
FR9
NX0261 2
NX0261 5
261
315
3*185+95 or
2*(3*120+70)
95—185 Cu/Al 2
5—95
NX0300 2
NX0300 5
300
315
2*(3*120+70)
95—185 Cu/Al 2
5—95
Table 6-2. Cable and fuse sizes for Vacon NXS2 and NX_5 (FR4 to FR9)
See chapter 1.3.
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