Operating instructions

37
EN
7.3 UPS operating states
Mains mode
ECO mode
Abbreviation for
"Efficiency Corrective
Optimiser"
In this operating mode
(UPS input voltage below
±
10% of U
rated
), the
electrical loads are
switched to direct mains
supply to increase
efficiency. With a fully-
charged battery system,
the UPS internal fan also
stops.
Mains mode
AVR mode
If the UPS input voltage is
outside the ECO range,
but within the voltage
window accepted by the
UPS, automatic voltage
regulation (AVR) is
activated.
Battery mode If the UPS input voltage
lies outside the specified
tolerance, e.g. in case of a
mains failure, the UPS
switches to battery mode.
In addition, a periodic
warning tone is emitted
every 4 seconds.
Standby
operating
mode
UPS is supplied with
voltage, but is switched
off (electrical loads not
powered). Battery charger,
on the other hand, is ready
for operation in standby
mode. The battery is thus
being charged.