0MLMHTM16RUENUB page 37 / 85
1.1.15 On - line - factory setting -
Load is always powered by the inverter, in the event of an input mains outage the load
continues to be powered from the inverter using the energy stored in the batteries.
On – line:
The load is always powered by the inverter, with steady voltage and frequency, using the
energy from the mains power supply (INPUT). If there is a fault in the INPUT, the UPS 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. When the INPUT is restored the batteries will be
automatically recharged by the rectifier.
1.1.16 Standby-on / Smart active
Load is supplied by mains, in the event of an input mains failure the load is supplied by the
inverter using the energy stored in the batteries.
In
Standby On
or
smart active,
the load is powered by the bypass line (if the mains power supply
is within the range); if there is a fault on the mains power supply the load is switched
automatically onto the inverter, powered by the battery
Standby On:
The switch from inverter to bypass line may be immediate (time set
≈
0) or delayed (up to
180 minutes). For enabling the switch, the bypass line has to remain within the range for the
delay time set. In
Standby On
mode, the rectifier remains powered and keeps the batteries
charged. If the bypass line voltage or frequency are out of the range, the load is automatically
switched onto the inverter output. With
Standby On
operation, the energy losses by the
system can be reduced, leading to considerable saving of energy. Before using this function
must be verified that, in the event of a mains outage, the load powered can tolerate an
interruption of the power supply of
≈
2-5 ms and that it can tolerate any mains interference.
This operating mode is normally used for loads that are not particularly sensitive.
While operating in this mode, the letter
N
will be displayed on the second line of the BASIC
MENU, near the UPS model.
Smart Active
:
The UPS automatically 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
that, if the voltage has remained within the pre-set values, the load is switched onto the
bypass line; otherwise the load remains powered by the inverter, while the observation time is
≈ 1
hour. If after this time provided there has been no disturbance, the load switches onto the
bypass line; otherwise the logic starts monitoring again for
≈ 1
hour. The advantage of this
operating mode is its efficiency, which is greater than 98%.
While operating in this mode
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 UPS
model.
1.1.17 Standby-off (with mains present the load is not supplied)
Load is not supplied, in the event of an input mains failure the load is powered by the inverter
using the energy stored in the batteries.
Standby-Off:
If there is a mains power supply, UPS output is zero. The RECTIFIER remains on and keeps the
battery charged. The output voltage is only present when the mains power supply fails. The
system remains with output voltage = 0V while the input voltage and frequency are within range.
When the mains power supply is restored, the UPS is automatically reset to
Standby-Off
mode.
When operating in this mode the letter
F
will be displayed on the second line of the BASIC
MENU, near the UPS model.
