ABB ACS880-14, Hardware Manual

Page: 144 / 248

Input and output power cabling panels (H381) 4
ABB recommends 360-degree grounding at the enclosure entry 5
Use a separate grounding cable if the conductivity of the cable shield is < 50% of the conductivity of the
phase conductor and there is no symmetrically constructed grounding conductor in the cable (see section
Recommended power cable types )
6
Common mode filter (option) 7
d u /d t filter (option) 8
The drive module frame must be connected to the enclosure frame. See Grounding of mounting struc-
tures (page 46) and section Grounding the drive module and the LCL filter module (page 73) .
9
Note: If there is a symmetrically constructed grounding conductor in the motor cable in addition to the conductive
shield, connect the grounding conductor to the grounding terminal at the drive and motor ends.
Do not use an asymmetrically constructed motor cable. Connecting its fourth conductor at the motor end in-
creases bearing currents and causes extra wear.
￭
Power cable connection procedure
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death,
or damage to the equipment can occur.
1. Run the motor cables from the motor to the enclosure. Ground the cable shields 360°
at the entry plate.
2. Twist the cable shields of the motor cables into bundles and connect them and any
separate ground conductors or cables to the ground busbar of the output power cabling
panel.
3. Connect the phase conductors of the motor cables to terminals T1/U2, T2/V2 and T3/W2
of the output cabling panel. For the tightening torques, see Technical data.
4. Make sure that all power is disconnected and reconnection is not possible. Use proper
safe disconnect procedures according to local codes.
5. Twist the cable shields of the input cables into bundles and connect them and any
separate ground conductors or cables to grounding busbar of the input cabling panel.
6. Connect the phase conductors of the input cables to terminals L1/U1, L2/V1 and L3/W1
of the input cabling panel. For the tightening torques, see Technical data.
144 Installation example with full cabling panels (H381)