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6
Follow UPS model No. to select appropriate input/ output cables. Please refer to
Table 5-2.
7
Connect the main AC source/ UPS output/ external battery cabinet cables to
the wiring terminal block. Please refer to Figure 5-12 and 5.5 External Battery
Cabinet Connection Warnings.
8
Ground the UPS.
N
N
Main
R
AC
S
source
T
For the critical
loads' grounding( )
(Figure 5-12: Single Unit Single Input Wiring Diagram)
Dual Input (Single Unit)
When there are two AC power sources, single unit wiring procedures are as follows.
1
Follow
input.
2
Refer to the procedures
Unit).
3
Connect the main AC source/ bypass AC source/ UPS output/ external battery
cabinet cables to the wiring terminal block. Please refer to Figure 5-13 and 5.5
External Battery Cabinet Connection Warnings.
4
Connect the bypass source's neutral to the neutral (N) terminal of the AC Input
Block.
ON I
ON I
R
S
T
R
S
T
AC INPUT
BYPASS INPUT
RISK OF VOLTAGE BACKFEED
BEFORE WORKING ON THIS CIRCUIT
Isolate Uninterruptible Power System (UPS)
Then check for Hazardous Voltage between all
terminals including the protective earth
See installation instructions before connecting to the supply
Apparatet er egnet for tilkopling til et IT forsyningsnett
For the UPS
grounding(
1
6
~
5-13
5
ON I
ON I
N
R
S
T
UPS OUTPUT
)
to modify the UPS into dual
stated in the section of Single Input (Single
Installation and Wiring
N
240VDC
240VDC
BATTERY INPUT
External
-
N
battery
+
cabinet
T
UPS
S
R
output
N
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