30
SALICRU
Connection to a three-phase bypass network:
Connect the R-S-T-N power supply cables to the bypass
terminals, respecting the order of the phases and the
neutral indicated in the labelling of the device and in
this manual. If the phase order is not respected the de-
vice will not work.
It is essential to connect the input neutral.
Connection to a single-phase bypass network:
Connect the R-N power supply cables to the bypass
terminals, respecting the order of the phases and the
neutral indicated in the labelling of the device and in
this manual. Failure to observe the phase and neutral
order will cause serious damage to the device.
Where there are discrepancies between the labelling and the
instructions in this manual, labelling shall always prevail.
For systems in parallel, it will be necessary to repeat the
connections that go from the panel to each device.
•
Frequency converter mode.
With the frequency
converter configuration activated, the cables of the
static bypass line must not be connected. With
this operation mode, all the functionalists of the static by-
pass are inhibited.
5.5.3. Output connection, terminals.
•
As it is a device with protection against class I elec-
trical shock, it is essential to install the protective
earth conductor to the terminal identified as
. Connect
this conductor before supplying voltage to the input termi-
nals.
•
Connect the output cables to the respective terminals ac-
cording to the configuration of the available equipment,
taking into account the illustrations in
to
in terms of the
connection points of the cables.
Three-phase output connection:
Connect the loads to the U-V-W-N output terminals,
re-
specting the order of the phases and the neutral
indicated in the labelling of the equipment and in this
manual. If the phase order is not respected the device
will not work.
Where there are discrepancies between the labelling
and the instructions in this manual, labelling shall al-
ways prevail.
Single-phase output connection:
Connect the loads to the U-N output terminals, re-
specting the order of the phase and the neutral indi-
cated in the labelling of the device and in this manual.
Failure to observe the phase and neutral order will
cause serious damage to the device.
Where there are discrepancies between the labelling and the
instructions in this manual, labelling shall always prevail.
For systems in parallel, it will be necessary to repeat the
connections that go from the panel to each device.
•
Frequency converter mode.
You can use the de-
vice with the frequency converter configuration, ac-
tivating this function through the control panel menus. For
connection purposes, the order of connection of the phase
or phase and neutral cables to the load or loads shall be
respected.
•
With regard to the protection to be placed at the output of
the protection board or manual bypass (optional), we rec-
ommend the distribution of the output power via at least
four lines. Each of them will have a magneto thermal pro-
tection switch of adequate value. This type of output power
distribution will ensure that a fault in any of the machines
connected to the device that causes a short circuit does
not affect more than the line that is faulty. The remaining
connected loads will have continuity assured due to the
tripping of the protection only in the line affected by the
short circuit.
5.5.4. Connection of the battery terminals of the device with
those of the battery module.
The battery set can consist of 32, 36, 40 or 44 elements con-
nected in series, but always in even numbers since it is neces-
sary for the internal architecture of the device to have a central
point or N neutral medium intake. At the same time, the back-
up time together with the power required to feed the loads de-
termines the Ah capacity of the accumulators.
Batteries connected in serial
N
BAT –
BAT +
N/2
N/2 +1
N–1
N
2
1
+ N
–
Fig. 24.
Typical connection of battery set.
•
As it is a device with protection against class I elec-
trical shock, it is essential to install the protective
earth conductor to the terminal identified as
. Connect
this conductor before supplying voltage to the input termi-
nals.
•
The connection between the terminals of the cabinet or
battery pack and the UPS will always be made through the
supplied cable hose, respecting the polarity indicated in the
labelling of each unit and the colour of the cables or their
identification at the ends through heat shrink sleeve (red
for positive “+”, blue for common “N” and black for nega-
tive “-”).
It is imperative to respect this rule and not to extend the
hose supplied.
•
For extended back-up time in which more than one module
or battery cabinets are supplied, the connection will always
be in parallel between them and in turn with the device.
Respect the rule indicated in the previous point for the con-
nection.
•
For 6-slot cabinets in parallel the connection of the bat-
teries with the UPS will not change, since each group of
accumulators is connected directly with its UPS.
However, there is also another possibility, a set of batteries
inside a cabinet or installed in a rack, and common to a UPS
system with 6 slots in parallel.