ABB ACH580-31 - Measuring the Installation; Grounding System Compatibility Check; Connecting the Power Cables; Connection Diagram

Measuring the installation
See section Measuring the insulation (page 92).
Grounding system compatibility check
See section Grounding system compatibility check (page 93).
Connecting the power cables
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Connection diagram
Note: NEC installation can include separate insulated conductors inside a conduit,
shielded VFD cable in conduit, or shielded VFD cable without conduit. The normal
dashed symbol (3) in this diagram represents the shield of shielded VFD cable.
The same solid symbol (2) represents conduit.
PE
PE
L1 L2 L3
UDC+
U1 W1
M
3
T1/U T2/V T3/W
V1
L1 L2 L3
PE
3
UDC-
1
2
3
4
6
7
4
5
A
DriveA
Insulated ground conductor in a conduit: Ground to drive's PE terminal and to the
distribution panel ground bus. For a VFD cable installation see 4.
1
Conduit ground: Bond the conduit to the drive's conduit box and to the distribution
panel enclosure. For a VFD cable installation see 3.
2
Shield of a VFD shielded cable: Ground the shield 360° under drive's grounding clamp.
Then twist with the ground conductors and connect under the drive's ground terminal.
Ground the shield also 360° at the motor end, then twist and connect under the motor's
ground terminal. For a conduit installation see 2.
3
120 Electrical installation – North America (NEC)