Vertiv™ NetSure™ 512
NGBB
-48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
11
3.3
Installing a Field Expansion Module Mounting Shelf in a System with a List
27 Distribution Cabinet
NOTE!
A field expansion module mounting shelf CANNOT be installed in a system with a List 7 distribution cabinet.
DANGER!
Adhere to the “Important Safety Instructions” presented at the front of this document.
NOTE!
Refer to Figure 3.6 and Figure 3.7 as this procedure is performed.
Procedure
1.
Remove the busbar rear shield from the lowest module mounting shelf in the rack. Remove the bottom panel from the
busbar rear shield by gently bending the panel until it snaps from the busbar rear shield.
2.
Remove the hardware from the lowest module mounting shelf’s -48V, return, and +24V or -58 V (if present) busbars.
a)
Remove the mounting angles attached to the shelf and replace with P/N 60056566. Place the mounting angle in
position as shown in Figure 3.6. Discard the other mounting angles.
3.
Install the expansion module mounting shelf directly below the bottom-most module mounting shelf in the rack. Use the
mounting hardware provided with the expansion module mounting shelf.
Hardware build-up is:
12-24 x 3/4" screw and flat washer,
(1) set per side.
12-24 x 3/4" screw and ground washer,
(1) set per side.
NOTE!
Install the ground washers so the teeth make contact with the metal on the mounting angles. Torque all screws to 65
in-lbs.
4.
Remove the busbar rear shield from the expansion module mounting shelf.
NOTE!
Apply electrical anti-oxidizing compound to busbar mating surfaces before performing the next step.
5.
Install the busbars provided with the expansion module mounting shelf between the studs on the expansion module
mounting shelf and the studs on the shelf above it. Secure these busbars to the expansion module mounting shelf with the
hardware provided with the expansion module mounting shelf. Secure these busbars to the shelf above the expansion
module mounting shelf with the hardware previously removed. Torque to 60 in-lbs.
Hardware build-up for these connections are:
M6 Nut,
M6 Belleville lock washer,
M6 flat washer.
6.
Disconnect the CAN cable coming from the distribution cabinet from the connector on the bottom-most existing module
mounting shelf and connect this cable to the same connector on the expansion module mounting shelf.
7.
Connect the open CAN connector on the bottom-most existing module mounting shelf to the open connector on the
expansion module mounting shelf.
