Grounding - Samsung iDCS 500 Technical Manual

iDCS 500 Release 2 / OfficeServ
TECHNICAL MANUAL
2. Remove the ground bar from the left side of the cabinet
3. Remove the breakout panels from the base of all the cabinets to allow cable
access.
4. Install the cabinets in the rack, leaving approximately 2 inches of space between
each cabinet to allow cable access, and secure each cabinet with eight 12-24
screws of suitable length in the mounting flange holes
NOTE: The 2 inch gap between cabinets requires a longer Cabinet Interconnect
Cable (CICR) than usual for multiple cabinet installations.
5. Reattach the ground bar to each cabinet and connect them together as
described in Part 2.7, Grounding.

2.7 GROUNDING

An equipment grounding conductor that is not smaller in size than the ungrounded
branch-circuit supply conductors is to be installed as part of the circuit that supplies the
product or system. Bare, covered, or insulated grounding conductors are acceptable.
Individually covered or insulated equipment grounding conductors shall have a
continuous outer finish that is either green or green with one or more yellow stripes.
The equipment grounding conductor is to be connected to ground at the service
equipment.
The attachment-plug receptacles in the vicinity of the product or system are all to be of
a grounding type, and the equipment grounding conductors serving these receptacles
are to be connected to earth ground at the service equipment.
WARNING: HIGH LEAKAGE CURRENT! Earth connection is essential before
connecting supply.
The iDCS 500 system requires that a supplementary
connected to the system. This is the preferred method of grounding the iDCS 500. It
has been observed that the third wire ground may be inferior or can contain noise that
may prevent the digital data bus from canceling out noise. This may result in erratic
operation of the iDCS 500. Another problem that has occurred is that some UPS
battery systems do not pass the ground through to the power cord resulting in no
ground to the system. The grounding bar on the bottom of the left side of the cabinet
must be connected to one of the following: bonded building steel, cold water pipe or a
ground rod using at least #16 AWG copper wire
ground between cabinets in a multiple cabinet system must also be at least #16 AWG
copper wire. The third wire AC ground or Field Ground is connected to the system
frame via the ground strap from the ground connector on the AC socket.
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(see Figure
(see Figure 2–9).
(see below)
(see Figure
2.5
Table of Contents
INSTALLATION
PART 2 MARCH 2004
2–8).
earth ground be
2–3). Additionally, the