Electrical installation 69Cables and PE busbar between integrated transformerand driveDrive with integrated transformerCables and PE busbar between drive and integrated transformer includes the followingconnections:• Transformer primary and secondary cables• Temperature sensor cables• Three-phase power supply cable to each of the transformer fan units• PE Busbar to connect INU and TRU.orAuxiliary supply from internal main transformer (option)• Heating cable (option)The cables are identified by their specific number and are labeled with the designation ofthe terminal where they are connected to.The terminals for the primary and the secondary cables are located on the side wall of thedrive cabinet. The transformer terminals are accessible through the left side door of thetransformer unit. The cables must be mounted to the transformer terminals as shown in thefigure below.121 Transformer unit2 Drive unit3 Control cable lead-through4 PE busbar43
