ABB ACS880-01 - Page 119

118 Electrical installation – North America
UL
NEC
Connecting the power cables
 Connection diagram
ADrive
1 For alternatives, see section Selecting the supply disconnecting device on page 51.
UDC-
UDC+
L1 L2 L3
T1/U T2/V T3/W
L1 L2 L3
PE
PE
U1
V1
W1
3 ~ M
1
2
A
R+R-
L1 L2 L3
T1/U T2/V T3/W
L1 L2 L3
PE
PE
U1
V1
W1
3 ~ M
1
2
A
6
3
3
5
34
DriveA
For alternatives, see section Selecting the main supply disconnecting device (page 61).
1
Use a separate grounding PE conductor inside the conduit or a grounding cable, if the
conductivity of the conduit does not meet the requirements for the PE conductor (see Se-
lecting the power cables (page 69)).
2
Note: If the cross-section of the Cu PE conductor is less than 8 AWG, install a second Cu
PE conductor of the same cross-sectional area as the original PE conductor. Alternatively,
you can use a Cu PE conductor with at least 10 mm2 cross-section. See Selecting the power
cables (page 69).
Make sure of a correct grounding of the conduit at the cable entry. Ground the other end of
the conduit and grounding conductor (if used) at the distribution board.
3
Make sure of a correct grounding of the conduit at the cable entry.4
Make sure of a correct grounding of the conduit at the cable entry.5
External brake resistor (if used), see chapter Resistor braking (page 263).
6
Note: Do not use an asymmetrically constructed motor cable for motors above 30 kW. Connecting
its fourth conductor at the motor end increases bearing currents and causes extra wear.
Electrical installation – North America 119