Salicru SLC CUBE 3+ PS Mode D'emploi page 120

colour of the cables (red for positive, black for negative, blue for
middle tap (N) and green-yellow for earth bonding), see Fig. 33.
For extended back up times with more than one battery
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module or cabinet, the connection will always be done in par-
allel among them and the equipment.
So, cable with black colour, from the UPS negative to the nega-
tive of the first battery cabinet and from this negative to the
second battery cabinet and so on. Proceed in the same way, for
connecting the positive red cable, the blue cable of the middle
tap (N) and for the green-yellow of the earth bonding.
As an example Fig. 34 shows the connection between one UPS
and two battery cabinets. Proceed in the same way when con-
necting more modules.
UPS
Fig. 34. Connection between UPS and battery cabinet.
UPS
+ N –
Fig. 35. Example of connection between UPS and two battery
cabinets.
In case of belonging or being connected to parallel system, the
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connection of the batteries with the UPS don not have any dif-
ference as regards to a single equipment, because by default,
each battery set is connected directly with its UPS, regardless
of the quantity of battery cabinets.
120
Battery cabinet
+ N –
+ N –
Battery Battery
cabinet 1 cabinet «N»
+ N – + N –
Also, as an option, there is another structure, a common
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battery set for parallel system of two equipments fitted in a
cabinet or rack.
The connection of each UPS with the battery cabinet will be
done with the supplied cable bundle, by connecting one side to
terminals (X11), (X23), (X12) and (X10) of UPS and the other
one to terminals (X47), (X49), (X48) and (X10) of battery
module, always respecting the stated polarity on the labelling
of each element and this manual, as well as the colour of the
cables (red for positive, black for negative, blue for middle tap
(N) and green-yellow for earth bonding), see Fig. 35.
Repeat the same procedure with the other UPS.
This set can be extended in back up time and be based on sev-
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eral units connected in parallel among them and the own UPSs.
Electrical discharge danger. If after starting up the
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UPS, it is required to disconnect the battery cabinet, the
equipment has to be completely shutdown (see section 6.5).
Turn off the battery fuse holder switch (Q8) located in the bat-
tery cabinet and/or fuse holder switch or switch (Q3) located
in the UPS. Wait 5 min. at least till the filter capacitors have
been discharged.
UPS 1
Battery cabinet
+ N –
Fig. 36. Example of connection of two UPSs in parallel and a
common battery set.
5.2.5. Connection to the input main protecting
earth terminal (X5) and the earth bonding
terminal (X10) .
As this is an equipment with class I protection against
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electrical shocks, it is essential to install the protection
earth conductor (connect earth (
terminal (X5), before supplying voltage to the input terminals.
The external battery cabinets will be connected to the bonding
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ground terminal (X10). The loads connected directly to the
output terminals of the UPS will be connected to the bonding
ground terminal (X10). The connection to the bonding ground
(X10) will be prior to any other connection.
All the terminals identified as bonding ground ( ) are con-
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nected to the equipment ground.
UPS 2
+ N –
+ N –
)). Connect this conductor to
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