UPS for 400 Vac Grid, User Guide, doc. rev. 4
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The time interval is specified in weeks.
8.2.3.1.3.1.
Factors that can delay the automatic battery test
In the event that the UPS’s AC input voltage is high, the battery test is postponed until the
UPS’s input voltage becomes lower. A “high” input voltage in this case means “greater than
the battery test voltage divided by √2”. The battery test voltage is that defined above in
Section 8.2.3.1.1 “Battery test fault voltage”.
If the AC input voltage rises above this threshold during the battery test, the test is aborted
and rescheduled to take place in 24 hours.
If a battery test is scheduled to take place now but the battery has not yet been fully charged
(has not yet been charged from the mains for eight consecutive hours since its last significant
discharge), the test is postponed until the battery is fully charged.
8.2.3.1.4.
Maximum duration of battery test
Set the maximum time a battery test may continue. If the battery is able to power the load for this
time period without its voltage descending to the "battery low voltage limit", the battery has
passed the test.
8.2.3.1.5.
Next battery test start time
Use this function to change/override the start time of the next automatic battery test. The
subsequent battery test interval is counted down from the completion of that test.
Figure 43: Next Battery Test Start Time
8.2.3.1.6.
Enable/Disable battery test by current
The current sensors are installed compare the current supplied by each battery pole. If the battery
poles do not draw equal currents, then the battery current test fails when this test is enabled.
