Battery Installation

For attached systems (the cabinets bolt to each other) the cables can run internal to the cabinets and will be supplied.

For detached systems (the cabinets do not bolt to each other), the cables must be run outside the cabinets. The customer must supply all the interconnecting cables and hardware. See Table 8 for current ratings and recommended cable sizes.

2.4.4Grounding

For cabinets that have been ordered as connected or attached, the ground cables and hardware will be supplied. See Figure 18 for location of cabinet-to-cabinet grounding.

For cabinets ordered as detached or stand-alone, customer must supply the cables and hardware. See Table 8 for current ratings and recommended cable sizes. See terminal detail drawings for location of ground busbar.

2.5Control Connection

Each Liebert NX Battery Cabinet contains a Battery Interface Board (BIB). See 3.0 - Installation Drawings. All cabinets in a system must have their Battery Interface boards connected in series. See Figure 9 for battery cabinet details

NOTE

Care must be taken to route the control cables away from high voltage cables or busbars.

Figure 5 Control cable layout—Liebert NX UPS to Liebert NX Battery Cabinet

 

Liebert

 

Liebert

NX

Additional

NX

Battery

Liebert

UPS

Cabinet

NX

 

 

Battery

 

 

Cabinet

Ext. Interface

Bat. Interface

Bat. Interface

Board (EIB)

Board (BIB)

Board (BIB)

TB3

TB1154

TB1154

CAN Cable

CAN Cable

The CAN cables must be two, twisted pair, shielded 18AWG (Belden 9156 or equivalent). All interconnecting cables and hardware for connected and attached cabinets will be provided.

NOTICE

Risk of improper installation. Can cause equipment damage.

During system commissioning, Emerson® Network Power Liebert Services will set the jumpers on the EIB and the BIB. If another battery cabinet is added to the system after commissioning, it is imperative that Liebert Services reset the jumpers on the EIB board and the BIB board.

9

Liebert® NX

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Emerson 225-600KVA installation manual Control Connection, Grounding