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The original factory battery circuit is of the closed type (a/b1)
•
for units with internal batteries, and of the open type (b) for
external battery modules.
– +
a
Los armarios de baterías externos se suministran con los
fusibles dentro de una bolsa. Insertarlos en el seleccionador
portafusiles durante la puesta en marcha.
•
No maniobrar los conectores de baterías y/o el inte-
rruptor seccionador, cuando el equipo esté en
marcha. Estos mecanismos no son del tipo seccionables en
carga.
•
Cuando se corte la red de alimentación del equipo o
del sistema paralelo más allá de una simple interven-
ción y esté previsto que quede fuera de servicio durante un
tiempo prolongado, se procederá previamente al paro com-
pleto y se deben desconectar las baterías accediendo a los
fusibles
(F8)
mostrados en Fig. 8 and Fig. 9.
5.2. CONNECTIONS
•
As this unit has protection against class I electric
shocks, it is essential to install a protective earth con-
ductor (connect earth (
earth terminal before supplying voltage to the input terminals.
• In accordance with the EN-IEC 62040-1 safety standard, in units
without a static bypass line, the installation must be equipped
with an automatic "Backfeed protection" system, such as a
contactor, which prevents voltage or hazardous energy from
appearing in the UPS input line during a network failure.
The standard is applicable regardless of whether the supply
network is single-phase or three-phase and both for individual
units and for each UPS of a parallel system.
•
In the documentation supplied with this user manual
and/or on your pen drive, the information relating to
the "Recommended installation" is provided. It shows the
wiring diagrams, as well as the protection size and the min-
imum cross-sections of the cables connected to the unit,
according to its nominal working voltage. All values are cal-
culated for total maximum cable length of 30 m between the
distribution board, unit and loads.
ˆ For longer lengths, correct the cross-sections to prevent
voltage drops, observing the regulations or standards of
the country.
ˆ In the same documentation and for each configuration,
the information for "N" parallel units is available, as well
as the characteristics of the "Backfeed protection".
•
There can be no bypass of the line that runs from
the "Backfeed protection" to the UPS, as this would
not comply with the safety standard.
• Warning labels must be placed on all primary power
switches, installed in areas away from the unit, to alert
electrical maintenance staff to the presence of a UPS in
the circuit.
USER MANUAL
– +
b
)). Connect this conductor to the
The label will contain the following or an equivalent text:
Before working on the circuit:
ˆ Isolate the uninterruptible power supply (UPS).
ˆ Check the voltage between all terminals, including
the protective earth terminal.
Risk of UPS return voltage.
•
This unit is suitable for installation in networks
with a TN (TN-C, TN-S and TN-C-S) or TT power
distribution system, taking into account the specificities of
the system used and the national electrical regulations of
the destination country at the time of installation.
The following figures show the configuration of the
•
terminals and their connections for standard
phase input and three-phase output configuration, with
and without a separate bypass
For other configurations, see
figurations.
Before proceeding with the connection, it is necessary to re-
•
move the protective cover from the terminal block, as shown
below in Fig. 32 y Fig. 33:
Fig. 32. Removing the protection cover of the connection terminals
in the tower version.
Fig. 33. Removing the protection cover of the connection terminals
in the rack version.
SLC CUBE4 7,5 kVA a 20 kVA - UNINTERRUPTIBLE POWER SOIRCE (UPS)-
three-
line.
Annex II. Input-output con-
101
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