NetSure
™
-48V DC Power System
User Instructions, UM582127000 (Issue AD, January 20, 2014)
Spec. No: 582127000
Code: UM582127000
Model No: 721
NPBB
Issue AD, January 20, 2014
[15]
Installing a Field Expansion Module Mounting Shelf
Spec. No. 588705300
DANGER!
Adhere to the “Important Safety Instructions”
presented at the front of this document.
Note:
Refer to
as this procedure is
performed.
PROCEDURE
1.
Remove the busbar rear shield from the existing module
mounting shelves. Remove the cut-out 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 (if present) busbars.
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 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 connector on the bottom-most
existing module mounting shelf to the open connector
on the expansion module mounting shelf.
8.
Re-install the rear busbar shield previously removed from
the existing module mounting shelf. Re-install the rear
busbar shield previously removed from the expansion
module mounting shelf.
9.
Refer to the Power System Installation Instructions
(IM582127000) and connect AC input power to the
expansion module mounting shelf.
10.
Refer to the Power System Installation Instructions
(IM582127000) and install rectifier and converter
modules into the expansion module mounting shelf as
required.
Danger
