5. Remove the conduit plate from the drive cabinet and cut holes as needed for the conduit
connections.
Note: Never cut metal in or around an equipment cabinet. Metal debris can cause
damage to electrical equipment and hazardous conditions.
6. Reinstall the conduit plate to cabinet and connect all electrical conduits as needed to
conduit plate. Do not leave any open holes at the top of the cabinet.
7. Run the motor power cables and separate ground cable (if present) from the motor to
cabinet.
8. Connect the motor power cable shields and separate ground cable (if present) to the
ground bar at the top of the cabinet.
9. Connect the motor phase conductors to the output power terminals U2, V2 and W2.
10. For drives with external brake resistors (option +D150 and no +D151):
• Run the power cables from the brake resistor to the cabinet including the proper
grounding cable.
• Connect the ground cable to the ground bar at top of cabinet.
• Connect the brake resistor power cables to the R- and R+ terminals.
11. Make sure that all power is disconnected and reconnection is not possible. Use proper
safe disconnect procedures according to local codes.
12. Run the AC power supply cables and separate ground cables (if present) from the supply
source to the cabinet.
13. Connect AC power supply cable shields and separate ground cables (if present) to the
ground bar at top of cabinet.
14. Connect AC supply phase conductors to terminals L1, L2 and L3.
15. Reinstall the shroud(s) and mounting plates.
￭ Grounding the motor cable shield at the motor end
For minimum radio-frequency interference, ground the cable shield 360 degrees at the cable
entry of the motor terminal box.
￭ DC connection (option +H356)
The UDC+ and UDC- terminals are intended for common DC configurations of a number
of drives, allowing regenerative energy from one drive to be utilized by the other drives in
motoring mode. Contact your local ABB representative for further instructions.
Connecting the control cables
See chapter Control units of the drive (page 141) for the default I/O connections of the drive
(with ACS880 primary control program). The default I/O connections can be different with
Electrical installation 121
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