APC 990 User Manual
Configuration: How to Configure the System
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Symmetra MW with External Bypass Static Switch Operation Manual - 990-1377D-001
Change the display settings:
– Enable APC Q breaker prefix: Use this
checkbox to enable or disable the APC Q
breaker prefix.
breaker prefix.
– Enable audible alarms: Use this checkbox to
enable or disable the audible alarms.
How to configure the Battery Test Settings screen
Press the Battery Test Settings button on the
User Configuration screen to access the Display
Settings screen.
User Configuration screen to access the Display
Settings screen.
Change the battery test settings. From the Battery
Test Settings screen, two different battery tests
can be performed and the battery monitor can be
reset.
Test Settings screen, two different battery tests
can be performed and the battery monitor can be
reset.
– Battery monitor test: Setting this value to True
results in an automatic battery monitor test
occurring dependant in the battery test options
configured by the service engineer.
occurring dependant in the battery test options
configured by the service engineer.
– Battery capacity test: Setting this value to True
results in the batteries being discharged until a
Battery Low Voltage Level is reached. This
test can only be performed manually. The test is used to cycle the batteries in order to calibrate
the backup time with the current load and battery modules installed.
Battery Low Voltage Level is reached. This
test can only be performed manually. The test is used to cycle the batteries in order to calibrate
the backup time with the current load and battery modules installed.
– Battery monitor reset: In the event of a weak battery or another battery problem, use this button
to reset the battery monitor.