Emerson 4015 Hrmg System Grounding, NPG System Grounding, Grounding Scheme Diagram

IM584000300	Installation Instructions
Issue AB, April 3, 2013	Spec. No. 584000300 (Model 4015-X003)

	System Grounding Connections Overview
	HRMG System Grounding
		Conduit Gnd
		(if req’d)
To Building		+ -
Facility Ground	IT Rack	DC Load Distribution
	Main	Sub-Rack
	Ground Bar
AC Input	Rack Frame Ground	Power & Control
		Sub-Rack
		HRMG Ground
		Connection
NOTES:		Battery Tray

1.Refer to SAG584000300 for recommended ground lead wire sizes.

IT Rack Tray 2-5

±200V DC Load Wiring

	NPG System Grounding
		Conduit Gnd
		(if req’d)
To Building		+ -
Facility Ground	IT Rack	DC Load Distribution
	Main	Sub-Rack
	Ground Bar
AC Input	Rack Frame Ground	Power & Control
		Sub-Rack Note 2
		- BUS
NOTES:
1. Refer to SAG584000300
for recommended ground		Battery Tray
lead wire sizes.
2. -400V DC Return
can be either
connected to the
-Bus or DC Distribution
Sub-Rack.	IT Rack	Tray 2-5

Figure 3-8

Grounding Scheme Diagram

400V DC Load Wiring

Page 26 Chapter 3. Making Electrical Connections

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