5 Maintenance and inspection
S8BA-24D24D□□□LF
■ Manual testing
Press and hold the “Beep Stop/ Tes t ” switch of the UPS for 5 seconds or
longer. When the beeper begins to sound intermittently, release the
switch.
If the battery is not sufficiently charged, the self-diagnostic test is not
performed. The test is not automatically performed even when the
battery is charged completely.
By performing the self-diagnosis test, backup operation is started
automatically. (“
” is displayed during test.) After the test is completed,
UPS automatically returns to the normal operation.
Reference
When the battery replacement alert “ ” is displayed, the battery needs to be
replaced. Perform replacement by taking the procedures in “5-1 Checking the battery”
and “
5-2 Replacing the battery”.
5-1-3 Estimated backup time
The backup time varies depending on the capacity of connected devices.
After calculating the total capacity of connected devices, refer to the graph of the backup
time to obtain an estimation of the initial value of the backup time. (This is also applied to
checking the battery.)
1. Convert the total capacity (power consumption) of the connected devices to watts (W).
The indicator can show values in two different ways: amperes (A), and watts (W).
Example 1: DC24V, 145W
Example 2: DC24V, 1.8A
For devices that use the A indication, convert the capacity
into W.
Example : 1.8 (A) = 1.8 × 24 (W) = 43.2 (W)
2. Add the values converted into W to obtain the total capacity of the connected devices.
Indication Value
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