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If the UPS does not automatically return to normal operation
after a few minutes, close all jobs as usual and switch off your
loads (e.g. PC) before the battery is fully discharged. This
lengthens the service life of the battery! Switch OFF the UPS
by pressing the main switch .
During the discharge process as the battery capacity
consistently drops, the LED BAT.MODE flashes, accompanied
by an intermittent double acoustic signal (once every four
seconds). When the battery undervoltage limit is reached
(acoustic signal every second), the electronic of the UPS
switches off the power supply for the loads.
Never store the unit in this condition! The discharged battery
system should be recharged within a week.
If the LED BAT.MODE flashes every second, it is
time shut down the s
ystem and all connected
loads! Shut down the UPS as well using the main
switch.
When the mains voltage comes back, the UPS must be
switched on again using the main switch (only applies if it
was previously switched off manually), in order to recharge the
battery and thus store sufficient battery capacity for any
possible future mains failures.
The batteries will be charged automatically when connected to
the mains, independently of the mode set. The charging time
after longer discharge of the batteries depends especially of
the number of connected external battery units.
The charging time up to 90% of the rate capacity for a
standard UPS is about 3 hours.
5.5.3 Unit Overload
If the unit is overloaded (load > 110 %), an intermittent signal
is heard. The power supply to the connected loads is
maintained, however the connected total load must be
reduced immediately.
Non-observance of the "Unit overload" condition may cause
the total loss of all UPS functions!