Eaton 9PXM User Manual

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4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 09 49CAUTION• Before connecting an external battery cabinet to the UPS cabinet or to another external battery cabinet,verify that all AC input power is removed from the UPS. Open the input service circuit breaker or turn theexternal bypass switch to the SERVICE position.• Remove all battery modules in the UPS cabinet and/or battery cabinet to ensure DC voltage is removedfrom the internal DC buses.• In the UPS cabinet, the proper location of cabinet-to-cabinet DC wiring is on the lower left of the rear panel.• In the external battery cabinets P-103002494, and P-103002725 this wiring installs into the rear panelwhere the DC emergency disconnect switch is located on the lower left of the rear panel. See Figure 42 .• Do not connect the EBM AC input to the UPS output, for the 120V/208V or 120V/240V Split-Phase Inputoption the EBM must be installed on its own dedicated 30 amp AC circuit.• Note that the front lower bottom left slot of battery cabinets P-103002494 and P-103002725 is where asuper charger must be installed ( for wiring option 3 ).If no super charger module is being used ( option 1and 2 ) battery modules can be installed in this slot. See Figure 42 .Connected Battery Cabinet Option