UPS EXA LCD 1.5 – 2-0 – 2.6
9
User’s manual
6
Functioning
6.1
Normal Mode
The UPS typically works in
Normal mode
: Input mains power is available and its amplitude is within specifications.
The Normal mode is identified by the lighting of
AC MODE
icon.
During Normal mode, the UPS recharges the batteries and keeps them in an optimal charging voltage.
6.2
Battery Mode
The UPS automatically runs in
Battery mode
if the AC Input Line voltage amplitude gets out of security limits (in
case of a black-out or over-voltage/low-voltage): in this case, the UPS supplies the required output power by its
internal battery and by the Inverter block.
The UPS automatically returns in Normal mode a few seconds after the AC Input Line is recovered.
The Battery mode is identified by the lighting of
BATTERY MODE
icon and by an acoustic signal every 10 seconds.
6.3
Low Battery and Automatic Restart
In Battery mode, EXA LCD indicates the
Low Battery
condition whenever the battery reaches a charge level
allowing connected devices to operate for approximately one more minute.
The UPS warns operators of
Low
Battery
by lighting of the
LOW BATTERY
icon on the LCD display and by emitting
an acoustic signal every second.
If AC Input does not come back on within few minutes, the UPS
shuts-down automatically
thus preventing the
batteries from discharging excessively; the UPS stops supplying Output power, deactivates control panel indication
and goes to a waiting state. Once AC Input comes back on, the UPS
restarts automatically
and after some seconds
it goes back to work in Normal mode.
After a complete discharge, the UPS needs 4 hours to recharge completely the batteries. The UPS recharges
batteries automatically if it works in Normal mode or if it is off and connected to the AC Input Line.
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