Salicru SLC ADAPT2 Series User Manual page 26

In parallel systems, the length and cross section of
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the cables from the protection switchboard to each
UPS and from these to the switchboard shall be the same
for all of them, without exception.
The cross section of the cables must always be considered
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in relation to the size of the terminals of the terminals ter-
minal block and/or switches, so that they are correctly fas-
tened in their entire section for optimum contact between
the two elements.
Only rated currents are printed on the nameplate of the de-
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vice as indicated by the EN-IEC 62040-1 safety standard.
For the calculation of the input current, the power factor
and the device's own performance have been considered.
If peripheral input, output or bypass elements such as
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transformers or autotransformers are added to the UPS or
parallel system, the currents indicated on the data plates
of these elements must be considered in order to select
the appropriate cross-sections, in compliance with the local
and/or national Low Voltage Electrotechnical Regulations.
When a galvanic isolation transformer is added to an UPS
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or parallel system as an option, as standard or installed on
its own account, either on the input line, on the bypass line,
on the output or in all of them, they must be fitted with pro-
tection against indirect contacts (earth leakage breaker) at
the output of each transformer, since due to its own insula-
tion characteristic it will prevent the tripping of the protec-
tions placed in the primary winding of the transformer in
case of electric shock in the secondary winding (output of
the isolation transformer).
We remind you that all the isolation transformers installed
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or factory supplied, have the output neutral earthed through
a jumper between the neutral terminal and earth. If the
isolated output neutral is required, this jumper must be re-
moved, taking the precautions indicated in the respective
local and/or national low voltage regulations.
For the passage of cables to the interior of the cabinet,
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there are cable entry cones and/or cable glands mounted
on the metal structure, in addition to a blind plate machin-
able at the user's discretion.
In case of installation in neutral IT mode, the switches, cir-
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cuit breakers and thermal magnetic protection must cut the
NEUTRAL in addition to the three phases.
In the case of UPSs with unbalanced input and output
frequency or frequency converters, the static bypass is
disabled and the manual bypass switch of the device
must not be operated, due to the disparity of the input
frequency and the frequency required by the load. Do
not operate the manual bypass switch on the frequency
converters and/or in equipment where the input and
output voltages are unequal because of the effects that
this may have on the loads connected to its output, ac-
cording to their type and/or tolerance to variations.
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5.4.2. Battery installation and maintenance.
Batteries are a source of energy, so take into account all
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recommendations, guidelines and indications in this section
and specially when they are owned by the user in which
they must be manipulated, installed, connected between
them and with the device.
5.4.2.1. General recommendations.
Precautions for installation, use and maintenance of bat-
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teries should be provided by the manufacturers.
The safety warnings regarding the batteries indicated in sec-
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tion 1.2.3 of the safety instructions (document EK266*08) in-
clude issues that must be taken into account when handling
or dealing with devices that incorporates them.
Additionally consider the following premises:
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Before accepting and using the batteries, check their
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apparent good condition. If the housing is damaged,
broken, deformed or leaking, if the battery terminals are
dirty, corroded or rusted, act accordingly or replace with
a new one according to each case. Otherwise, there is
a risk of reduced battery capacity, electric leakage or
even a potential fire hazard.
The battery contains sulfuric acid that is confined in
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its housing. However, when the battery case cracks or
breaks due to ill-treatment, there is an acid leak with
its fateful consequences. Therefore, when handling
batteries, use the appropriate safety PPE.
At the end of its useful life, there may be increased
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internal resistance and/or erosions of positive/negative
plaques. If this condition continues without replace-
ment, it can overheat resulting in deformations or leaks
of the electrolyte. Be sure to replace the battery before
this happens.
If a battery leaks, or if it is physically damaged, it must
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be replaced, stored in a sulfuric acid resistant container
and disposed of in accordance with applicable laws.
5.4.2.2. Installing the batteries. Preliminary considerations before
connecting them and their protections.
The equipment covered in this user manual does not in-
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clude batteries as elements installed in the same cabinet
because there is no physical space available. However,
the installer can carry out an adaptation to integrate both
blocks into a rack cabinet, under his responsibility and if
he/she is a qualified person (defined in section 1.2 of
document EK266*08).
The most standard assemblies in rack cabinets made by our
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firm are represented in document EL096*00.
For all cases, section 5.5.4. describes the connections
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between the battery pack and the UPS, treating both as
separate entities, although they may cohabit in the same
cabinet or not, or even a part of the battery pack may share
the cabinet space with the UPS.
In general in this section there are some minimum traces
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to consider and respect in relation to batteries and their
installation, especially when adaptations and/or modifica-
tions are made on their own:
SALICRU