Emerson Liebert NXL series Operation And Maintenance Manual page 73

Liebert NXL UPS
Event Message Event Definition
Batt Self Test
The UPS is performing a battery self
test.
The battery self test terminates
automatically at the end of the test.
Battery test settings are adjustable and
can be accessed by pressing "Config,"
"User Settings," "Batt Mgt," "Battery
Test."
This status message is self-clearing.
When the condition is no longer present,
the message and any control activity
tied to the status event reverts to
normal.
Batt Sensor Fail
The controls are sensing a failed Battery
Temperature Sensor.
If a sensor reports a value outside the
normal operating range of the sensor, it
is considered failed.
This alarm is self-clearing. When the
condition is no longer present, the alarm
and any control activity tied to the
alarm reverts to normal.
Batt Temp
With more than one Battery
Imbalance
Temperature Sensor installed, the
controls are detecting too great a
temperature difference between the
individual sensors.
Batt Test Failed
An Automatic or Manual Battery Test
Failed. The battery "Test Duration" is
adjustable. The battery test fail criteria
were met before the end of the timed
battery test.
For example, there must be at least 25%
load to run the battery test. If, during
the battery test the load drops below
25%, the test fails.
Liebert NXL alarm and status messages (continued)
Page 73
Operation and Maintenance Manual 250-300-400-800kVA
Recommended Action
During normal operation, no user
response is required.
The battery test can be terminated at any
time by the user by pressing "Batt Mgt,"
"Manual Battery Test," "Stop."
Press "SILENCE" to silence the audible
alarm.
Try to identify which sensor has failed by
observing the temperature reading inside
the Battery Box on the One-Line Display.
Cycle through all connected batteries by
pressing the Battery Box on the display.
Contact your factory-authorized service
provider.
Press "SILENCE" to silence the audible
alarm.
To attempt to identify which sensor is
reporting an inconsistent temperature or
an overheating battery, observe the
temperature reading inside the Battery
Box on the One-Line Display. Cycle
through all connected batteries by
pressing the Battery Box. If it appears
this alarm is due to a specific cabinet or
battery string being warmer than the
others, verify through investigation
whether the string is actually getting
warmer than the others, or if the sensor
appears to be reporting incorrectly.
Contact your factory-authorized service
provider.
Press "SILENCE" to silence the audible
alarm.
Contact your factory-authorized service
provider.