ABB ACS880-17 - Connection Procedure (IEC)

Electrical installation 107
 Connection procedure (IEC)
1. Do the steps in section Electrical safety precautions on page 16 before you start the
work.
2. Open the cabinet door.
For R11 bottom entry of cables:
• If there is a mounting plate/two plates above the fan, loosen the four screws of the
plate and pull out the plate/s. Unplug the connectors and remove the plate/s.
• If there is no mounting plate/s, but instead a shroud/s above the fan, undo the four
screws and remove the shroud/s.
• Remove the “door” fan (see section Replacing the cabinet “door” fan on page
136).
• (In marine versions, option +C121, undo the three M6 screws on the left side of
the swing-out frame.)
• Undo the two screws and open the swing-out frame or remove the shroud if there
is no swing-out frame.
• Remove the plastic cover in front of input terminals.
F
or R11 top entry of cables:
• (In marine versions, option +C121, undo the three M6 screws on the left side of
the swing-out frame.)
• Undo the two screws and open the swing-out frame or remove the shroud if there
is no swing-out frame. (In marine versions, option +C121
, undo the four M6
screws and remove the support in front of top fuse plate.) Unplug the connectors,
loosen the four M6 screws and remove the top fuse plate.
3. Peel off 3 to 5 cm of the outer insulation of the cables above the entry plate for the
360° high-frequency grounding.
4. 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.
5. If fire insulation is used, make an opening in the mineral wool sheet according to the
diameter of the cable.
6. 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 entry with the conductive sleeves and attach the grommets to
the holes.
7. Fasten the conductive sleeves to the cable shields with cable ties.
8. 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).
9. Tie up the unused conductive sleeves with cable ties.
10. Connect the twisted shields of the motor cables to the ground bar and the phase
conductors to the U2, V2 and W2 terminals.