Ups Operation - ABB PowerValue 11T IN User Manual

U S E R M A N U A L

4.3 UPS operation

• Turn on the UPS with utility power supply
(in AC mode)
1. After power supply is connected correctly,
set the breaker of the battery pack at "ON"
position (the step only available for long-run
model). Then, set the input breaker at "ON"
position. At this time, the fan is running and
the UPS supplies power to the loads via the
bypass. The UPS is operating in Bypass mode.
NOTE!
When UPS is in Bypass mode, the output
voltage will directly power from utility after
you switch on the input breaker. In Bypass
mode, the load is not protected by UPS.
To protect your precious devices, you
should turn on the UPS. Refer to next step.
2. Press and hold the "ON" button for 1s to turn
on the UPS and the buzzer will beep once.
3. A few seconds later, the UPS will enter to
AC mode. If the utility power is abnormal, the
UPS will operate in Battery mode without
interruption.
NOTE!
When the UPS is running out battery, it will
shut down automatically at Battery mode.
When the utility power is restored, the UPS
will auto restart in AC mode.
• Turn on the UPS without utility power supply
(in Battery mode)
1) Make sure that the breaker of the battery pack
is at "ON" position (only for long-run model).
2) Press and hold the "ON" button for 1s to turn
on the UPS, and the buzzer will beep once.
3) A few seconds later, the UPS will be turned on
and enter to Battery mode.
• Battery mode operation
1) When the UPS is in Battery mode, the buzzer
will beep according to different battery
capacity. If the battery capacity is more than
25%, the buzzer will beep once every
4 seconds. If the battery voltage drops to the
alarm level, the buzzer will beep quickly (once
every sec) to remind users that the battery is
at low level and the UPS will shut down
automatically soon. Users could switch off
some non-critical loads to disable the
shutdown alarm and prolong the backup time.
If there is no more load to be switched off at
that time, you have to shut down all loads as
soon as possible to protect the devices or
save data. Otherwise, there is a risk of data
loss or power failure.
2) In Battery mode, if buzzer sound annoys, users
can press the Mute button to mute the buzzer.
3) The backup time of the long-run model
depends on the external battery capacity.
4) The backup time may vary from different
environment temperature and load type.
5) When setting backup time for 16.5 hours
(default value from LCD panel), after
discharging 16.5 hours, UPS will shut down
automatically to protect the battery. This
battery discharge protection can be enabled
or disabled through LCD panel control.
(Refer to 3-7 LCD setting section)
• Turn off the UPS with utility power supply in
AC mode
1) Turn off the inverter of the UPS by pressing
"OFF" button for at least 1s, and then the
buzzer will beep once. The UPS will turn into
Bypass mode.
NOTE!
If the UPS has been set to enable the
bypass output, it will bypass voltage
from utility power to output sockets and
terminal even though you have turned off
the UPS (inverter).
NOTE!
After turning off the UPS, please be
aware that the UPS is working at Bypass
mode and there is risk of power loss for
connected devices.
2) In Bypass mode, output voltage of the UPS is
still present. In order to cut off the output,
switch off the input breaker. A few seconds
later, there is no display shown on the LCD
panel and UPS is complete off.
• Turn off the UPS without utility power supply
in Battery mode
1) Turn off the UPS by pressing "OFF" button for
at least 1s, and then the buzzer will beep once.
2) Then UPS will cut off power to output and
there is no display shown on the display panel.
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