￭ Connection diagram, 12-pulse unitsACS880-07Incoming unit (ICU)1)1L11L21L32)PE2L12L22L3PE1) Fuses or other protection means.2) 360-degree grounding is recommended if shielded cable is used. Ground the other endof the input cable shield or PE conductor at the distribution board.Note:Use a separate grounding PE cable (1a) or a cable with a separate PE conductor (1b) if theconductivity of the shield does not meet the requirements for the PE conductor.￭ Layout of the input cable connection terminals and lead-throughsThe location and dimensions of the busbars are visible in the dimensional drawings deliveredwith the drive. Alternatively, see the example dimension drawings in the manual.￭ Connection procedureWARNING!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 19) before you start the work.2. Open the door of the incoming cubicle. open the door of the supply and inverter modulecubicle.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 for360° high-frequency grounding.5. Prepare the ends of the cables.122 Electrical installation
