American Power Conversion 480kW400V - Manual (Page 29)

Maintenance & Testing
990-4058
User Guide APC Silcon 480kW 400V UPS 29
If the UPS is to be taken out of operation for an extended period, disconnect the battery in order
to prevent discharging. For details, refer to Installation Guide.
Action
1. Press
2. Press or
until
3. Press
4. Press
5. Wait about 1 sec.
6. Wait until backup times
expires and a short
alarm sounds. (No alarm
in battery monitor test
if battery is OK)
7. Press
8. Press
Display shows Description
"xxx" is back-up time from last test –
if no previous test has been performed
or if the test has been aborted the
display will read"???"!
A battery monitor test can be performed
in the same way by selecting "Battery
monitor test" in the display.
However, this test will not start, unless
the battery is fully charged
The next step starts up the test!
To abort press
Starts the battery test.
(To interrupt a running test – perform
point 1-2 and then press key
and )
"xxx" is obtained back-up time
in minutes. (Battery capacity test only)
Exits the parameter stack
If not operated the system will automati-
cally exit after 30 seconds.
Battery capacity
test : xxx
Battery capacity
test : ON
Battery operation
time : xxx min.
Normal operation
load power xx%
Normal operation
load power xx%
Battery capacity
test : xxx
Data stored
CAUTION!
To avoid battery damage, allow a minimum of 16 hours of UPS operation over a 3-month period
for batteries to charge to a sufficient level.