Vacon NXI, User Manual

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cabling and connections vacon • 41
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6
6.1.1 Power connections
6.1.1.1 DC supply and motor cables
The power supply is connected to terminals B+ and B- and the motor cables to terminals U/T1, V/T2
and W/T3. A cable entry gland should be used at the motor cable end to reach the EMC levels, see
Table 6-1.
Use cables with a heat resistance of at least +70C. The cables and the fuses must be sized according
to the inverter nominal output current which can be found on the rating plate. Installation of cables
according to UL regulations is presented in Chapter 6.1.3 and aR fuse sizes in Tables 6-2 and 6-3.
If the motor temperature protection of the drive (see Vacon All in One Application Manual) is used as
an overload protection, the cable shall be chosen accordingly.
These instructions apply only to installations with one motor and one cable connection from the
inverter to the motor. In any other case, ask the factory for more information.
Cable type EMC Level T
Power supply
Flexible conductor. Min. temperature endurance for isolation 70°C
Copper Busbar
Motor cable
Power cable equipped with concentric protection wire and intended
for the specific mains voltage. (PIRELLI/MCMK or similar
recommended).
Control cable
Screened cable equipped with compact low-impedance shield
(PIRELLI/jamak, SAB/ÖZCuY-O or similar).
Table 6-1. Cable types required to meet standards
6.1.1.2 Control cable
For information on control cables, see Chapter 6.2.1.1 and Table 6-1 above.
6.1.1.3 Fuses, NXI_xxxx 5
Type Frame
I
L
[A]
Bussman aR
fuse type
Fuse
size
Fuse
U
n
[V]
Fuse
I
n
[A]
No. of fuses
NXI_0168 5
FI9
168 170M3819 DIN1 690 400 2
NXI_0205 5 205 170M3819 DIN1 690 400 2
NXI_0261 5 261 170M6812 DIN3 690 800 2
NXI_0300 5 300 170M6812 DIN3 690 800 2
NXI_0385 5
FI10
385 170M8547 3SHT 690 1250 2
NXI_0460 5 460 170M8547 3SHT 690 1250 2
NXI_0520 5 520 170M8547 3SHT 690 1250 2
NXI_0590 5
FI12
590 170M8547 3SHT 690 1250 2 × 2
NXI_0650 5 650 170M8547 3SHT 690 1250 2 × 2
NXI_0730 5 730 170M8547 3SHT 690 1250 2 × 2
NXI_0820 5 820 170M8547 3SHT 690 1250 2 × 2
NXI_0920 5 920 170M8547 3SHT 690 1250 2 × 2
NXI_1030 5 1030 170M8547 3SHT 690 1250 2 × 2
NXI_1150 5 FI13 1150 170M8547 3SHT 690 1250 6