ABB ACS880-37LC, Hardware Manual

Page: 90 / 202

Connecting the input power cables
￭ Connection diagram
„
1)
2a)
2b)
LCL filter IGBT supply modules
Components
for charging
circuit
ISU cubicle ICU cubicle
Notes:
1)
Fuses or other protection means.
Use a separate grounding (PE) cable (2a) or a cable with separate PE conductor (2b) if the
conductivity of the shield does not meet the requirement for the PE conductor. See section
Selecting the power cables (page 62) .
￭ Layout of the input cable connection terminals and cable entries
The location and dimensions of the busbars are visible in the dimensional drawings delivered
with the drive. Alternatively, see the example dimension drawings in the manual.
￭ Connection procedure
WARNING!
Obey the instructions in chapter Safety instructions . If you ignore them,
injury or death, or damage to the equipment can occur.
1. Do the steps in section Electrical safety precautions (page 17) before you start the work.
2. Open the door of the incoming cubicle.
3. Remove the shrouding covering the input terminals.
4. Peel off 3 to 5 cm of the outer insulation of the cables above the lead-through plate for
360° high-frequency grounding.
5. 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.
90 Electrical installation