74 Electrical installationmore than three inverter modules, make sure that the load is distributed evenly betweenthe modules:• In case of two inverter cubicles of two modules, connect the same number of cables toeach cubicle.• In case of one inverter cubicle with three modules and another with two, each cubiclerequires a number of cables proportional to the number of modules within. Forexample, connect three out of five (or six out of ten, etc.) cables to the cubicle withthree modules, the remaining two out of five (four out of ten) cables to the cubicle withtwo modules. Motor cable connection procedureThe procedure involves removing the fan carriages of each inverter module, making theconnections, and reinserting the fan carriages.To allow more room for making the connections, the inverter modules can be removedcompletely instead of just the fan carriages. To do this, follow the procedure underRemoving the inverter module(s) (page 76).Removing the fan carriage of an inverter moduleRefer to the drawings below.WARNING! Repeat the steps described in section Electrical safetyprecautions on page 64. The complete safety instructions are given inSafety instructions for ACS880 multidrive cabinets and modules(3AUA0000102301 [English]). Ignoring the instructions can causephysical injury or death, or damage to the equipment.1. Open the inverter module cubicle door.2. Remove the screws holding the front cover plate. Lift the cover plate somewhat torelease it.3. Disconnect the wiring at the top of the fan carriage.4. Remove the two screws at the bottom of the fan carriage.WARNING! Before you proceed, make sure the two screws holding the top of theinverter module are in place.5. Remove the two screws at the top of the fan carriage.6. Pull the fan carriage out.7. Repeat the procedure for other fan carriages in the same cubicle.Proceed to Connecting the motor cables (page 80).
