Mechanical Installation; General; Shelf Mounting - ABB 827E Product Manual

Modular inverter system −48 v / +24 v input 120 vac / 240 vac output

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Mechanical Installation

This section details all of the information that is necessary to mechanically install the system.

Complete mechanical installation before any electrical connections are made to the system. The

inverter system may be rack or pedestal mounted.

Refer To Figure 5.

NOTE: The DC power plant supplying input circuits to the inverter system must be wired as stated in

Telcordia document GR-1089-CORE, section 9.8.3, Isolated DC return technique. The power

plant must have a dedicated grounding conductor from the power plant common DC return

bus to the Central Office Ground Bar.

This dedicated grounding conductor must not be bonded to or used as the frame ground

cable. A separate connection to the Central Office Ground System must be used for frame

grounding purposes.

NOTE: List 8 system comes equipped with an adaptor plate for 19" to 23" mounting.

NOTE: Optional 25" and 26" mounting kits are available for 23" shelves - J438827E List 5 and List 6

respectively. Refer to Figure 5 for mounting dimensions.

Once the system has been removed from the shipping container:

•

Verify that the input DC voltage matches the shelves and inverters: +24 Vdc (+27 Vdc nominal) or −48 Vdc (−54

Vdc nominal).

•

Verify that AC voltage matches across inverters, shelves, and loads.

•

Install the system as follows:

1. Move the mounting brackets as required

2. Ensure there is proper clearance in the rack or shelf to install the system.

3. Put the system into position and secure with the screws located at each outside corner (four screws total).

4. Repeat steps 1 thru 3 for additional shelves, as required.

•

Verify the input source.

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