30
5.2. CONNECTION.
•
This eq
uipment is suitable to be installed in mains with
power distribution system of TT, TN-S, TN-C or IT. Take
into account the installation of the used system and
the
national electrical regulation of the destination country.
5.2.1. Connection to mains, terminals (X1 to X4).
•
As this is an equip
ment with class I protection against
electrical shocks, it is essential to install the protection earth
conductor (connect earth (
)). Connect this conductor to
terminal
(X5)
, before supplying voltage to the input terminals.
• Equipment without static Bypass line, in accordance with the
safety standard EN-IEC 62040-1, installation has to be executed
with a «Backfeed protection» system, for example, a
contactor. That will prevent the appearance of dangerous
voltage or energy in the UPS input mains during a mains fault.
The standard is applicable both if power supply is in single phase
or in three-phase and for single units, and for each UPS of the
parallel system.
•
If it requires more detailed information for particular
system configuration, ask for the relating information in
«Recommended installation». It will show the circuit
diagram, as well as the protection size and minimum cross
section of the wires that are connected to the equipment.
Take into account the nominal operating voltage. All figures
are calculated for a
maximum total cable length of 30
m
between the distribution panel board, equipment and
loads.
For longer lengths correct the cross sections accordingly,
in order to avoid dropping voltages, by respecting the
Regulations or norms corresponding to the country.
In the own documentation and for each setting, it is available
the information for «N» units in parallel, as well as the features
of the own «Backfeed protection».
There can be no derivation in the line from the
«Backfeed protection» to the UPS, as the safety standard will
be infringed.
• Warning labels should be placed on all primary power switches
installed in locations away from the equipment to alert the
electrical maintenance staff of the presence of a UPS in the
circuit.
The label will bear the following or an equivalent text:
Before working on this circuit.
Isolate the Uninterruptible Power System (UPS).
Check the voltage between all terminals, including the
protective earth.
Risk of UPS backfeed voltage.
• Connect the input cables to the respective terminals according
to the available equipment setting.
For parallel systems, it will be necessary to repeat the
connections that go from panel board to each equipment.
Connection to three phase mains
:
Connect the power supply cables R-S-T-N to the input terminals
(X1)
,
(X2)
,
(X3)
and
(X4), respecting the phase rotation
and neutral
indicated on the label of the equipment and in this
manual. If the phase rotation is not respected, the equipment
will not operate.
In case of discrepancies between the label and the instructions
of this manual, the label will always prevail.
Connection to single phase mains
:
Connect the power supply cables R-N to the input terminals
(X1)
and
(X4), respecting the order of phase and neutral
indicated on the label of the equipment and in this manual. If the
order of the phase and neutral is not respected, the equipment
will be damaged seriously.
In case of discrepancies between the label and the instructions
of this manual, the label will always prevail.
5.2.2. Connection of separate static bypass line,
terminals (X14 a X17). UPS B version only.
• As this is an equipment with class I protection against electrical
shocks, it is essential to install the protection earth conductor
(connect earth (
)). Connect this conductor to terminal
(X5)
, before supplying voltage to the input terminals.
• Equipment with static Bypass line, in accordance with the
safety standard EN-IEC 62040-1, installation has to be provided
with a «Backfeed protection» system, as for example a
contactor, which will prevent the appearance of dangerous
voltage or energy in the UPS input mains during a mains fault.
The standard is applicable if power supply both is single phase or
three phase and for single unit, and for each UPS of the parallel
system.
• If it’s required more detailed information for particular system
configuration, ask for the relating «Recommended installation»
information. In that information is shown the circuit diagram, as
well as the protection size and minimum cross section of the
wires that are connected to the equipment, taking into account
the nominal operating voltage. All figures are calculated for a
maximum total cable length of 30 m between the distribution
panel board, equipment and loads.
For longer lengths correct
the cross sections accordingly,
inorder to avoid dropping voltages, by respecting the
Regulations or norms corresponding to the country.
In the own documentation and for each setting, it is available
the information for «N» units in parallel, as well as the features
of the own «Backfeed protection».
•
There can be no derivation in the line that goes from the
«Backfeed protection» to the UPS, as the safety standard
would be infringed.
• Warning labels should be placed on all primary power switches
installed in places away from the equipment to alert the
electrical maintenance staff of the presence of a UPS in the
circuit.
