SamplexPower Evolution Series Owner's Manual page 65

SECTIOn 4 |
• transfer from inverter to grid / generator: As soon as qualified AC input power
from Grid / Generator is available, the inverter will exit Power Saving Mode and will
switch over to Normal Mode. This switch over is necessary for synchronizing the AC
output of the inverter with the AC input before transfer (Synchronization can not be
carried out with pulsing wave form during Power Saving Mode). After synchronization
is completed, the load is transferred to the Grid/Generator at zero crossing of the
voltage waveform.
4.8.5 offline / online uPS Modes
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Description given below provides general capability of this function. for details of
programming, please refer to sub-headings "ONLINE MODE" and "ONLINE OPTION" at
Section 4.4 in the Owner's Manual for remote Control Model EVO-rC at Appendix A.
The EVO is able to operate in two modes – Offline Mode and Online Mode. Offline Mode is
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the Default Mode. Mode can be changed to Online Mode through optional remote Control
Model EVO-rC (Please see Section 4.4 in the attached owner's Manual for eVo-rC –
Appendix A).
offline Mode: This is the Default Mode. In this mode, the AC input from the Grid /
Generator is the PrIMArY source of AC power and the batteries / Inverter Section of EVO
the bACK-UP source of DC-AC power. If qualified AC input (within the programmed voltage
and frequency limits) is available at the Grid / Generator AC input, the Transfer relay will be
switched ON (energized), the EVO
from the Grid / Generator will be passed through to the AC output and at the same time, the
Internal AC Charger will start charging the battery. If an external charger is also connected
to the External Charging Terminals (3 and 4, fig 2.1), the internal AC Charger will limit the
charging current to a value = (Programmed Value of Charging Current – Value of Current
fed from the external charger). When the Grid / Generator AC input fails or, is not within
the programmed values of voltage and frequency, the Transfer relay will be switched Off
(de-energized), the unit will change over to "Inverting Mode" and the AC Output will be fed
from the internal Inverter Section. When Grid / Generator input is restored, the unit will revert
back to "Charging Mode" to charge the batteries and at the same time, pass through the AC
input to the AC output.
online Mode: In this mode, the Inverter Section of the EVO
of power. The Grid / Generator is the bACK-UP source of AC power. online Mode has 2
options of operation that can be programmed through optional remote Control
Model eVo-rC (Please see Section 4.4 in the attached owner's Manual for eVo-rC
– Appendix A). In this mode, even if qualified Grid / Generator AC input is available (within
the programmed voltage and frequency limits), the EVO
Mode" and AC output is provided by the Inverter Section as long as the battery is in charged
condition above the specified programmed value of low battery voltage (This specified value
of low battery voltage is selected through programmable parameter "LOW VOLT ALArM").
When the battery discharges to the programmed voltage threshold of "LOW VOLT ALArM",
or lower and remains at this threshold, or below for a sustained programmed time period,
the Transfer relay will be switched ON (energized) and the EVO
"Charging Mode" [The sustained programmed time period is selected using parameter called
general Description & Principles of Operations
will operate in "Charging Mode" and qualified AC input
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is the PrIMArY DC-AC source
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always operates in "Inverting
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will change over to
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SAMLEX AMErICA INC. | 65
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