UM581127000 User Instructions Issue AB, March 22, 2012 Spec. No. 581127000 (Model 710NPBA)
Page 12 Chapter 3. Maintenance This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy
Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Figure 3-2 Installing a Field Expansion Module Mounting Assembly Interconnect
Busbars
588705200
(8-PositionExpansion Shelf)
588705203
(Existing24-Position Shelf Assembly)
(588705201and 588705202 similar)
1/4"Hardened Flat Washer
1/4"Belleville Lock Washer
1/4-20Nut
(16places)
Torqueto 60 in-lbs.
Applyelectrical anti-oxidizing compound to
busbarmating surfaces before installing
ExpansionModule Mounting Shelf.
RearView
Bracketto secure
shelvestogether.
12-24x 1/2"
ThreadForming
HexHead Screw
(2per side)
No.10/12
GroundWasher
(2per side)
(Torqueto 65 in-lbs)
1.Slide the Expansion Module Mounting Shelf
intothe relay rack.
2.Secure the Expansion Mo duleMo untingS helf
tothe relay rack.
3.Remove rearcover from existing s helf and
theExpansion Module Mounting Shelf.
4.Secure the existing shelf’sbusbars to the
expansionshelf’s busbars with the s upplied
interconnectbusbars.
5.Tie the existing shelf tothe Expansion
ModuleMounting Shelf with th e supplied
brackets(both sides).
5.Remove the connector fromthe bottom
controllercommunications connector in the
existingshelf and plug it into the bottom
controllercommunications connector in the
expansionshelf. Plug the l oose end of the
bottomcontroller communications connector
inthe existing shelf into the loose end of the
topcontroller communications co nnectorin
theexpansion shelf.
6.Reinstall rear covers.