Troubleshooting; Active Alarms - Liebert Nfinity User Manual

4.0 T
ROUBLESHOOTING
4.1

Active Alarms

In the event of an alarm, the User Interface LCD will display the last message regardless of the
default screen. A list of possible alarm messages is displayed below. If you encounter one of these or
other alarm messages and are unsure of the corrective action to take, please contact a qualified Lie-
bert representative at the number listed on the back of this manual.
User Interface Text
Main Control Failure The Nfinity system has detected a
System Control Module failure.
Power Module Fail The Nfinity system has detected a Power
Module failure.
Battery Module Fail The Nfinity system has detected a Battery
Module failure.
Redun. Control Fail The Nfinity system has detected a
System Control Module failure.
Battery Card Failure The Nfinity system has detected an
Intellislot Battery Card failure.
UPS On Battery The Nfinity is drawing power from the
batteries, not from utility.
Reminder alarm - The fan filter reminder time has elapsed.
Check air filter
Short Circuit User tried to turn the output on following a
Recovery - Please short circuit on the output without waiting
Wait for the required 30 seconds to expire.
Power Module N+1 Number of power modules is not
Redundancy Alarm adequate to provide power redundancy.
Output Off - Output A short circuit was detected on the output. Correct short (or extreme overload condition) and turn on
Short Circuit
UPS Output The load on the Nfinity exceeded the
Overload capacity of the active power modules.
Output exceeds This will occur if the max load alarm is
max load setting enabled, and the measured load at the
UPS's output is greater than the value
set.
Output Off- Normally a severe overload will cause the
Overload, bypass unit to go to automatic bypass. This event
unavailable informs the user that bypass was not
qualified so the unit dropped the load to
protect itself.
Switch To The Nfinity is on automatic bypass.
Manual Bypass Manual bypass switch should be
activated before servicing.
Load Exceeds The measured load on the output will
Battery Module cause the battery modules to exceed their
Capacity limits if the UPS transfers to battery
mode.
Bypass source The input voltage is not within the
not qualified specified voltage or frequency range so
the UPS will not allow an automatic or
manual transfer to bypass.
Load exceeds Load is greater then the rated frame limit. Reduce the UPS's load.
frame limit
Cause
Identify and replace the failed System Control Module or
contact Liebert Global Services for support.
Identify and replace the failed Power Module or contact
Liebert Global Services for support.
Identify and replace the failed Battery Module or contact
Liebert Global Services for support.
Identify and replace the failed System Control Module or
contact Liebert Global Services for support.
Identify and replace the failed Intellislot Battery Card or
contact Liebert Global Services for support.
Verify input breaker is closed. Verify input voltage is
present and correct voltage. Verify input frequency is
correct.
Check and clean the fan filter and acknowledge the alarm.
This alarm may be disabled or the interval between these
alarms can be configured via the User Interface.
Wait for at least 30 seconds and then turn the output on.
Reduce the UPS's load, add power modules to the frame
or disable the alarm feature via the User Interface.
the UPS's output.
Reduce the UPS's load or add power modules.
Reduce the UPS's load, increase the Maximum Load
Alarm limit via configuration or disable the Maximum Load
Alarm limit via configuration.
Reduce the UPS's output load and verify that the UPS's
bypass source is qualified (amplitude and frequency).
Verify that the configuration voltage and frequency
settings are properly selected.
Transfer Nfinity to manual bypass and call Liebert service
for assistance.
Reduce the UPS's load or add battery capacity. If external
non-modular battery cabinet(s) are added, verify that the
UPS's configuration is set to match the external battery
amp-hour rating and charger rating.
Verify UPS's configuration for voltage and frequency.
Check UPS's input breaker; disable this alarm if desired
via configuration.
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Troubleshooting

Action