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VACON · 44
5
POWER CABLING
5.1
CABLE CONNECTIONS
The mains cables are connected to terminals L1, L2 and L3. The motor cables are connected
to terminals U, V and W.
To obey the EMC levels, use a cable entry gland when you install the motor cable at the two
ends. For cable selections in different EMC levels, see Table 23.
L1
L2
L3
Fig. 17: The principal connection diagram
A. The control panel
B. The control unit
Use cables with a minimum heat resistance of +70 °C (158 °F). In the selection of the cables
and the fuses, refer to the nominal output current of the drive. You can find the nominal
output current on the nameplate.
We recommend that you select the cables and the fuses to agree with the output current
because the input current of the AC drive is almost the same as the output current.
For information on how to make the cable installation to obey the UL standards, see Chapter
5.2 UL standards on cabling.
Chapter 5.3 Cable dimensioning and selection shows the minimum dimensions of the Cu-
cables and the related fuse sizes.
If the motor temperature protection of the drive (see Vacon All in One Application Manual) is
used as an overload protection, select the cable to agree with the protection. If 3 or more
5
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A
B
C
C. The power unit
POWER CABLING
U/T1
V/T2
W/T3
TEL. +358 (0)201 2121 · FAX +358 (0)201 212 205
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