11
compact, cool, silent and high performance.
The double converter principle eliminates all mains power distur-
bances. A rectifier converts the AC current of the mains into DC
current, thereby maintaining optimum battery charge level and
powering the inverter, which, in turn, generates a suitable AC
sine-wave voltage for continuously powering the loads. In the
event of failure of the UPS’s mains power, the batteries supply
clean power to the inverter.
The design and construction of the SLC TWIN PRO2 T UL se-
ries UPS has been carried out in accordance with international
standards.
These devices allow expansion through the connection of up to
3 additional modules with the same power in parallel in order to
obtain redundancy, e.g. N+1- or increase in the capacity of the
system.
Thus, this series has been designed to maximise the availability
of critical loads and to ensure that your business is protected
from variations in power distribution line voltage, frequency,
electrical noise, cuts and micro-cuts. This is the primary goal of
SLC TWIN PRO2 T UL series UPSs.
This manual applies to the standardised models shown in Tab. 1.
4.3.1. Notable features.
•
Genuine on-line with double-conversion technology and
output frequency separate from the mains.
•
Output power factor 1 and pure sine waveform, suitable for
almost all kinds of load.
•
Input power factor > 0.99 and high overall efficiency > 0.94.
Greater energy savings and lower user wiring costs, as well
as low distortion of the input current, which reduces pollu-
tion in the power supply network.
•
Great adaptability to the worst conditions of the mains.
Wide input voltage, frequency and waveform ranges, thus
avoiding excessive dependence on limited battery power.
•
Battery charging current up to 4 A to reduce battery re-
charging time.
•
N+X redundant parallel connection to increase reliability
and flexibility. Maximum 3 devices in parallel.
•
Selectable high-efficiency mode > 93% ECO MODE. Energy
savings, economically beneficial to the user.
•
Possibility of starting the device without mains power
supply or discharged battery. Regarding this last aspect, the
backup will be as reduced as the batteries are discharged.
•
Intelligent battery management technology is very useful
for extending the life of accumulators and optimising re-
charge times.
•
Standard communication options via the RS-232 serial port
or USB port.
•
Control of emergency power off
(EPO)
.
•
Interface between user and device through easy-to-use
control panel with LCD screen and LED indicator lights.
•
Optional network connectivity cards available to improve
communication capabilities.
Model
Type In. /
Out.
Dimensions
(d x w x h)
mm
Weight
(kg)
SLC-6000-TWIN PRO2 T UL
Std.
I / I 625 x 250 x 826
117
SLC-10000-TWIN PRO2 T UL
142
SLC-6000-TWIN PRO2 T UL B1
Long backup
70
SLC-10000-TWIN PRO2 T UL B1
88
Tab. 1.
Standardised models, dimensions and weights.
4.4. OPTIONAL EXTRAS.
Depending on the configuration chosen, the device can include
any of the following options:
4.4.1. Exterior manual maintenance bypass.
The purpose of this option is to electrically isolate the device
from the mains and the critical loads without cutting the power
to the latter. In this way, maintenance or repair operations on
the device can be carried out without interruptions to the power
supply of the protected system, while preventing unnecessary
hazards for technical personnel.
The basic difference between this option and the manual
bypass integrated into the UPS’s own enclosure consists of
greater operability, since it allows total disconnection of the
UPS from the installation.
VERY IMPORTANT
. In this
SLC TWIN PRO2 T UL
series,
which incorporates a galvanic isolation transformer in the
same enclosure as the device, the supply of the load must be inter-
rupted before transferring to maintenance bypass so as not to
short-circuit the windings of the transformer.
4.4.2. Communication card.
The UPS features a slot at the rear for inserting one of the fol-
lowing communication cards.
4.4.2.1. Integration into computer networks using an SNMP
adapter.
Large computer systems based on LANs and WANs that integrate
servers in different operating systems must provide the system
manager with ease of control and administration. This facility
is obtained through an SNMP adapter, which is universally sup-
ported by the main software and hardware manufacturers.
Connection of the UPS to the SNMP is internal while that of
the SNMP to the computer network is made through an RJ45
10 base connector.
4.4.2.2. RS-485 modbus.
Large computer systems based on LANs and WANs often re-
quire that communication with any element that is integrated
into the computer network be made through a standard indus-
trial protocol.
One of the most used standard industrial protocols on the market
is the MODBUS protocol. The SLC TWIN PRO2 T UL series is
also ready to be integrated into this type of environment through
the ‘SNMP mini card’ adapter with MODBUS protocol or the
RS-485 modbus card described in the options documentation.
SLC TWIN PRO2 T
UL
UNINTERRUPTIBLE POWER SUPPLIES (UPS)
USER MANUAL
