87
UPS for 480 Vac Grid, User Guide, doc. rel.4.0
8.2.4.1.3.1.
Factors that can delay the automatic battery test
If 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 8.2.4.1.1
“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.
8.2.4.1.4.
Maximum duration of battery test
Set the maximum time a battery test may continue. If the battery can power the load for this time
period without its voltage descending to the "battery low voltage limit", the battery has passed
the test.
8.2.4.1.5.
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 67: Next Battery Test Start Time
8.2.4.2.
Setup > Battery > BATTERY CURRENT
The parameters in this section relate to the battery charging current.
The current limit of the battery charging is selectable to 10% or 20% of the ampere hour value of
the battery.
