Filter
Top Products
IM581127000 Installation Instructions
Issue AB, March 22, 2012 Spec. No. 581127000 (Model 710NPBA)
Page 38 Chapter 4. Making Electrical Connections
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.
AC INPUT AND AC INPUT EQUIPMENT
GROUNDING CONNECTIONS
Danger: Adhere to the “Important Safety Instructions” presented at the front of
this document.
Connections to Factory Installed Module Mounting Shelves
The system provides either a separate AC input connection for each rectifier position or a
separate AC input connection for every two (2) rectifier positions in the factory installed
module mounting shelves. Circular openings are provided in the top of the AC input
wireway panels for AC input and AC input grounding conductors. The openings accept
3/4 inch conduit fittings. It is recommended that AC input wiring be provided to all
rectifier mounting positions, including currently unused positions. This wiring will ease
future installation of rectifiers to meet increased load requirements.
Note: A grounding conductor must be provided with each conduit.
PROCEDURE
Refer to Figure 4-2 as these procedures are performed.
Accessing Connections and Routing Wire
1) Remove the two AC input connector covers and the AC input wireway covers by
first loosening the fasteners that secure each of them.
2) Install conduit fittings as required in the top of the AC input wireways. Plug
buttons are provided, and must be installed in the openings not being used.
3) Route wiring into the AC input wireways through the previously installed conduit
fittings.
Making AC Input Connections
Note: Module mounting positions are lettered left to right as viewed from the front of
the shelf, A-D in the top row and E-H in the bottom row of each shelf sub-
assembly.
Note: If module mounting positions B, C, F, and G are intended solely for DC-DC
Converter installation (Converter Option must be installed), AC input
connections to these positions are not required.
1) Make AC input connections as shown in Figure 4-2. Connect each wire by
inserting the stripped end into the wire opening, and then tightening the screw.
Recommended torque is 10 in-lbs for the individual PCU feed terminal blocks
and 18 in-lbs for the dual PCU feed terminal blocks.
208/240 VAC Service Type:
Line to Line:
Connect Line 1 to Terminal 1.
Connect Line 2 to Terminal 2.
Line to Neutral:
Connect Line to Terminal 1.
Connect Neutral to Terminal 2.
Making AC Equipment Grounding Connections
Note: Make equipment grounding connections to earth ground, not to the branch
circuit neutral conductor.