Salicru UPS SLC TWIN PRO series User Manual - page 14
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3.3. Operating principle.
This manual describes the installation and operating of the Un-
interruptible Power Supply (UPS) from SLC TWIN PRO series
as equipments that can run as a complete separate and inde-
pendent units. UPSs from SLC TWIN PRO series assures an
optimal protection for any critical load, keeping the power supply
of the loads between the stated parameters, with no break,
during any blackout, or mains fluctuations or deteriorations with
a wide range of available models (from 0.7 kVA to 3 kVA), it al-
lows adapting the model to the end-user needs.
Thanks to the used technology, PWM (Pulse Width Modulation)
and double conversion, the UPSs from SLC TWIN PRO series
are compact, silent, and with high efficiency.
The double conversion principle cancels all the AC mains per-
turbations. A rectifier converts the alternating current from AC
input mains into DC direct current, that keeps at the optimal level
the batteries and supplies the inverter, which at the same time
generates an AC voltage ready to feed the loads permanently. In
case of fault of the input power supply of the UPS, the batteries
supplies clean energy to the inverter.
The UPS design and construction from SLC TWIN PRO series
have been done in accordance with the international norms.
So, this series has been designed to maximize the availability of
the critical loads and make sure that your business is protected
against fluctuations of voltage, frequency, electrical noises,
blackouts and mains faults, which are present in the energy
distribution lines. This is the main target of the UPSs from SLC
TWIN PRO series.
This manual is applicable to the standardized models and stated
in table 1.
3.3.1. Main features.
•
True on-line double conversion and independent output fre-
quency from mains.
•
Output power factor of 0,8 and pure sinewave, suitable for
almost any kind of loads.
•
Input power factor > 0,99.
•
Great adaptability to the worst conditions of the input mains.
Wide margins of the input voltage, frequency range and
wave shape, so it is avoided the excessive dependence on
the limited energy of the battery.
•
Availability of battery chargers up to 8 A in order to decrease
the battery recharging time.
•
High efficiency mode can be selected > 0,94 (ECO-MODE).
Energy saving, which reverts to the user in an economy way.
•
It is possible to start up the equipment without mains or the bat-
tery discharged. Watch this last aspect, because the back up
time will be decreased as much discharged the batteries are.
•
The technology of the smart management of the battery is
very useful for making longer the accumulator lifetime and to
optimise the recharging time.
•
Standard communications options by means of USB port.
•
Control of the remote emergency power off (EPO).
•
Control signal of the remote emergency power off (EPO).
•
Interface between the user and the equipment through the
control panel LCD, user friendly.
•
Option cards are available to improve the communication ca-
pacity of connectivity.
•
Easy firmware updating, no need to call to the Service and
Technical Support (S.T.S.).
•
Simplified maintenance, which allows replacing the batteries
in a safety way without shutdown the UPS.
Model
Power (VA)
Type
SLC-700-TWIN PRO
700
Standard
SLC-1000-TWIN PRO
1000
SLC-1500-TWIN PRO
1500
SLC-2000-TWIN PRO
2000
SLC-3000-TWIN PRO
3000
SLC-700-TWIN PRO B1
700
Standard with
extended autonomy
SLC-1000-TWIN PRO B1
1000
SLC-1500-TWIN PRO B1
1500
SLC-2000-TWIN PRO B1
2000
SLC-3000-TWIN PRO B1
3000
Table 1.
Standardized basic models.
3.4. Options.
Depending on the selected configuration, the equipment can in-
clude any of the following options:
3.4.1. Isolation transformer.
The isolation transformer, provides a galvanic isolation that al-
lows isolating the output from the input completely.
The installation of an electrostatic shield between the primary
and secondary windings of the transformer provides a high level
of attenuation of the electrical noises.
The isolation transformer can be installed at the input or output
of the UPS from SLC TWIN PRO series and it will always be
located out from the equipment enclosure.
3.4.2. External maintenance manual bypass.
The purpose of this option is to isolate electrically the equip-
ment from mains and critical loads, without breaking the power
supply to the loads. Therefore, in this way the maintenance or
fixing tasks can be done in the equipment with no interruption on
the power supply energy to the protected system, at the same
time that unnecessary risks are avoided to the technical staff,
because it allows a complete disconnection of the UPS from the
installation.
3.4.3. Integration in IT networks by means of the
SNMP adaptor.
The big IT systems based on LANs and WANs that integrate
servers with different platforms, they have to include an easy
way of controlling and management at the manager system dis-
posal. This facility is got through the SNMP adaptor, which is
well-known by the main software and hardware manufacturers.
The available SNMP option for SLC TWIN PRO series is a card
USER MANUAL