Entry Of External Resistor And Dc Cables; Connection Procedure (Iec) - ABB ACS880-07 Hardware Manual

114 Electrical installation

Entry of external resistor and DC cables


Run the external brake resistor cables and DC cables into the drive cabinet through the
power cable entries at the base of the drive module cubicle. In frames R6 to R8 the
connection terminals are in the drive module. In frame R9, the connection terminals are
located below the drive module.

Connection procedure (IEC)


1. Do the steps in section
the work.
2. Open the cabinet door.
3. Open the swing-out frame.
4. For frames R6 to R11: Remove the mounting plate(s) above the cabinet "door" fan by
undoing the mounting screws. With options +G300, +G307, +G313: Unplug the
connectors at the back of the mounting plate.
5. Remove the fan mounting plate by loosening the mounting screws and lifting it up.
Unplug the fan supply cables.
6. For frames R9 to R11: Remove the shrouds on the power cable terminals.
7. Peel off 3 to 5 cm of the outer insulation of the cables above the entry plate for the
360° high-frequency grounding.
8. Prepare the ends of the cables.
WARNING! Apply grease to stripped aluminum conductors before attaching
them to non-coated aluminum cable lugs. Obey the grease manufacturer's
instructions. Aluminum-aluminum contact can cause oxidation in the contact
surfaces.
9. If fire insulation is used, make an opening in the mineral wool sheet according to the
diameter of the cable.
10. Slide the cables through the entries with the conductive sleeves. Remove rubber
grommets from the entry plate for the cables to be connected. Cut adequate holes into
the rubber grommets. Slide the grommets onto the cables. Slide the cables through
the entries with the conductive sleeves and attach the grommets to the holes.
11. Fasten the conductive sleeves to the cable shields with cable ties.
12. Seal the slot between the cable and mineral wool sheet (if used) with sealing
compound (eg, CSD-F, ABB brand name DXXT-11, code 35080082).
13. Tie up the unused conductive sleeves with cable ties.
14. Connect the twisted shields of the motor cables to the ground bar and the phase
conductors to the U2, V2 and W2 terminals.
15. For drives with external brake resistors (option +D150 and no +D151): Connect the
twisted shields of the resistor cables (if present) to the ground bar and the condutors
to the R- and R+ terminals.
16. Connect the twisted shields of the input cables and separate ground cable (if present)
to the PE terminal of the cabinet and the phase conductors to the L1, L2 and L3
terminals.
Precautions before electrical work on page 18 before you start