The inverter cabinet contains the components and controls necessary to rectify, control, and invert the system power to propel and retard the truck. The direction of power flow depends on the mode of operation. The two basic modes of normal operation are the Propel Mode and the Retarding Mode.
The two top compartments (1) on the front of the inverter cabinet contain low voltage components. All other compartments in the cabinet contain high voltage components.
Air filters (2) are located in front of the cooling system intake vents. An air filter is also located inside the bottom left panel (3) of the inverter cabinet to filter the cabinet pressurized air.
NOTE: All references to “left” or “right” are from the rear of the truck looking forward.