
9
4.4. UPS OPERATING MODES.
•Normal mode.
Device running supplying output voltage from the inverter.
Mains power present with correct input voltage and fre-
quency.
•Battery mode.
Device running with mains voltage or frequency out of
range or without AC input power, either due to mains
failure or absence of cable connection, supplying output
voltage from the batteries.
•Bypass mode.
Device running or not, supplying output voltage directly
from the AC mains.
With the inverter running, this operating mode may be due
to an overload, blockage or inverter fault.
The actions for each incident will be as follows: Reduce the
load connected to the output, unblock the device by reset-
ting it - stop it and start it up again - and, if the blockage or
fault remains, contact our T.S.S.
With the inverter shut down, the output supplies mains
power directly through the static bypass of the device pro-
vided that it has AC input power.
•Frequency converter (CF) mode.
Operating mode of the UPS as a frequency converter. In this
mode, the static bypass is disabled by the condition of dis-
parate input and output frequencies.
Even if the LCD on the backlit control panel shows mes-
sages, it does not mean that the inverter is operational.
It is switched on by pressing the ‘ON’ button on the
control panel, see Chapter 6.
4.4.1. Notable features.
•True on-line with double-conversion technology and output
frequency separate from the mains.
•Output power factor 0.9. Pure sine-wave waveform, suit-
able for all types of load.
•Input power factor > 0.99 and high overall performance (be-
tween 89% and 91%). Greater energy savings and lower
user installation costs (wiring), as well as low distortion
of the input current, which reduces pollution 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 recharge time < 3h.
•Selectable high-efficiency mode (ECO MODE) > 95%. En-
ergy savings, economically beneficial to the user.
•Possibility of starting the device without mains power
supply or discharged battery. Pay attention to this last as-
pect because the more the batteries are discharged, the
more the backup will be reduced.
•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.
•Remote emergency power off control (EPO).
•Control panel with LCD display.
•Availability of optional connectability cards to improve
communication capabilities.
•The device can be configured as a tower or rack using the
accessories supplied. The control panel can be rotated to
adapt to either format.
Model Type Input/output type
SLC-1000-TWIN RT2 LION
Standard
Single-phase / Single-phase
SLC-1500-TWIN RT2 LION
SLC-2000-TWIN RT2 LION
SLC-3000-TWIN RT2 LION
Tab. 1. Standardised models.
4.5. OPTIONAL EXTRAS.
Depending on the configuration chosen, the device can include
any of the following options:
4.5.1. Isolation transformer.
The isolation transformer provides galvanic isolation in order
to completely isolate the output from the input and/or change
neutral point treatment.
The placement of an electrostatic screen between the primary
and secondary windings of the transformer provides a high
level of electrical noise attenuation.
The isolation transformer can be physically placed at the input
or output of the UPS depending on the technical conditions of
the whole system (device supply voltage and/or load voltage,
characteristics or their type, etc.).
It will always be supplied as a peripheral component external
to the device itself in a separate enclosure.
4.5.2. 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.
SLC TWIN RT2 LION UNINTERRUPTIBLE POWER SUPPLIES (UPS)USER MANUAL