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4.8
Operating modes
The various equipment operating modes are described below.
setting
The operating mode is set when the CPS is installed; it may be changed subsequently but this should
always be done by a
specialized technician.
4.8.1 On - line - factory setting -
load always powered by inverter, in the event of an input mains failure the load continues to be
powered from the inverter using the energy stored by the batteries.
On – line:
The load is always powered by the inverter, with stabilized voltage and frequency, using the
energy from the mains power supply (INPUT). If there is a fault in the INPUT, the CPS will
switch to the batteries in zero time and the batteries will supply energy to the inverter to keep
the load powered (for the backup time of the batteries). When the INPUT is restored the
batteries will be automatically recharged by the rectifier.
4.8.2 Standby-on / Smart active
load powered from the mains, in the event of an input mains failure the load is powered from
the inverter using the energy stored by the batteries.
In
Standby On
or
smart active
,
the load is powered from the by-pass line (if the power supply
line is in the acceptance field); if there is a fault on the power supply line, the load switches
automatically onto the inverter, powered by the battery
Standby On:
the switch from inverter to by-pass line may be immediate (time set = 0) or delayed (up to
180 minutes). For the switch to take place, the by-pass line has to remain in the acceptance
field for the time set. In
Standby On
mode, the rectifier remains powered and keeps the
batteries charged. If the by-pass line voltage or the frequency go out of the acceptance field,
the load is automatically switched onto the inverter output. With
Standby On
operation, the
energy dissipated by the system can be reduced, leading to considerable saving. Before using
this function it must be ensured that, in the event of a mains outage, the load powered can
accept an interruption of the power supply of around 2-5 ms, and that it can support any
mains interference.
This operating mode is normally used for loads that are not particularly sensitive.
The letter
N
will be displayed on the second line of the BASIC MENU, near the CPS model.
Smart Active
:
the CPS autonomously activates
On-Line
or
Standby-On
operation according to the quality
of the power supply (see the “PERSONALIZ. SMART ACTIVE OPERATION” menu).
When Smart Active mode is activated, the power supply is monitored for a few minutes, after
which, if the voltage has remained within the pre-set values, the output is switched onto the
by-pass line; otherwise the load remains powered by the inverter, while the observation time
is approx. one hour. After this time, provided there has been no interference, the load
switches onto the by-pass line; otherwise the logic starts monitoring again for approx. one
hour. The advantage of this operating mode is its efficiency, which is greater than 98%.
SMART A
will be displayed on the first line of the BASIC MENU, and the letter
M
will
appear in the second line of the BASIC MENU, near the CPSmodel.
Summary of Contents for C3T
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