Liebert 600TTM installation manual Battery Wiring, Equipment

8.3Battery Wiring

Power wiring to the Battery Cabinet connects positive, negative, and ground power cables from the Battery Cabinet to the associated UPS. Connection of the UPS to the Battery Cabinet serves to both charge and discharge the batteries (when needed). The battery disconnect (circuit breaker) requires a control cable. Liebert Battery Cabinets include power and control cables to join multi- ple cabinets together into a system. Additional (field-supplied) power or control wiring might be necessary to connect the battery cabinet system to the UPS. Refer to Figure 16 through Figure 18.

	DANGER
	A BATTERY INTERCELL CONNECTION ON EACH TIER OF THE
	LIEBERT BATTERY CABINET IS DISCONNECTED FOR SAFETY
	DURING SHIPMENT. DO NOT COMPLETE THESE
	CONNECTIONS. THE LIEBERT GLOBAL SERVICES
	REPRESENTATIVE WILL COMPLETE THESE CONNECTIONS
	AS PART OF START-UP. AN IMPROPERLY INSTALLED UNIT
	CAN RESULT IN INJURY TO PERSONNEL OR DAMAGE TO
	EQUIPMENT.
	CAUTION
	Be sure polarity is correct when wiring the Battery Cabinet to the
	connected equipment (positive to positive; negative to negative).
	If polarity is not correct, fuse failures or equipment damage can
!	result.
!	CAUTION
	DC power cables should be installed in conduit with conductors
	in matched pairs (positive and negative).
	NOTE
	A Liebert Battery Specialist can perform a detailed inspection of the entire
	battery system to ensure it meets current IEEE standards. This inspection
	service is recommended because batteries are a very critical part of the UPS
	system.

22 Wiring Considerations