Uninterruptible Power Supplies PowerWAVE 8000DPA RI, User Manual

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UPS338-01-00 PowerWAVE 8000-RI DPA User Manual Dated 5 April 2013
3-21
3: Installation
3.11.3 Battery cabling
Figure 3.15 Battery connections (in the rear of the UPS cabinet)
The batteries are connected to terminal blocks mounted on the left-hand side of the power connection rail
located in the rear of the UPS cabinet, as shown in Figure 3.15. Each UPS Module has three battery
connection terminals, annotated ‘+’, ‘N’ and ‘–’. The ‘+’ and ‘–’ connections are wired to the battery positive
and negative extremities, and the ‘N’ connection is wired to the centre point of the battery string – hence the
need to use an even number of batteries in the string.
The left-hand illustration in Figure 3.15 shows the battery connections for the RI-10, RI-11 and RI-12 models.
These models contain a single UPS module and therefore only one set of battery connection terminals is
provided. The other illustrations show the RI-20, RI-21 and RI-22 models which contain two UPS modules
and therefore have two sets of battery connection terminals. The R1-40 model (not shown) is similar but has
four sets of battery connection terminals.
The cables shown connected to the top of the battery terminal blocks are wired to the UPS battery isolator(s)
located on the front of the UPS sub-rack (not RI-10, RI-20 or R1-40). The battery strings are connected to the
bottom of the terminal blocks, as shown in Figure 3.15. Where a ‘common battery’ configuration is
implemented in a multi-module system, all the modules are connected to a common battery source which
may itself comprise a number of parallel battery strings. Where this type of installation is used, ‘common
battery’ links are fitted to the bottom of the battery connection terminal blocks, and the battery cables are
connected to the links – as shown in the centre diagram of Figure 3.15.
PE
PE
To
M
odule 1 B
a
tt
er
y Isol
a
tor +
To
M
odule 2 B
a
tt
er
y Isol
a
tor +
To
M
odule 1 B
a
tt
er
y Isol
a
tor N
To
M
odule 2 B
a
tt
er
y Isol
a
tor N
To
M
odule 1 B
a
tt
er
y Isol
a
tor -
To
M
odule 2 B
a
tt
er
y Isol
a
tor -
PE
N +
N
+
To
M
odule 1 B
a
tt
er
y Isol
a
tor +
To
M
odule 2 B
a
tt
er
y Isol
a
tor +
To
M
odule 1 B
a
tt
er
y Isol
a
tor N
To
M
odule 2 B
a
tt
er
y Isol
a
tor N
To
M
odule 1 B
a
tt
er
y Isol
a
tor -
To
M
odule 2 B
a
tt
er
y Isol
a
tor -
To
B
a
tt
e
ry
S
tr
in
g
1
+
To
B
a
tt
e
ry
S
tr
in
g
2
+
To
Ba
tt
e
ry
S
tr
in
g
1
N
To
Ba
tt
e
ry
S
tr
in
g
2
N
To
B
a
tt
e
ry
S
tr
in
g
1
-
To
B
a
tt
e
ry
S
tr
in
g
2
-
To
M
odule 1 B
a
tt
er
y Isol
a
tor +
To
M
odule 1 B
a
tt
er
y Isol
a
tor N
To
M
odule 1 B
a
tt
er
y Isol
a
tor -
To
B
a
tt
e
ry
S
tr
in
g
1
+
To
Ba
tt
e
ry
S
tr
in
g
1
N
To
B
a
tt
e
ry
S
tr
in
g
1
-
To
B
a
tt
e
ry
S
tr
in
g
1
+
To
Ba
tt
e
ry
S
tr
in
g
1
N
To
B
a
tt
e
ry
S
tr
in
g
1
-
N
+
N
+
RI-10, RI-11, RI-12 RI-20, RI-21, RI-22 RI-20, RI-21, RI-22
(Common Battery) (Individual Battery)
To UPS Module(s) battery connections (via fused battery isolator where fitted*)
* No battery isolator fitted to R1-10, R1-20 or R1-40 models.