Liebert Nfinity User Manual page 36

User Interface Text
Assert manual A user-initiated transfer to bypass will
bypass assert this alarm, instructing the user to
enable the manual bypass switch. Once
the manual bypass is asserted, the alarm
will clear. This is a non-mutable alarm.
Remote shutdown The most likely cause is that the incorrect
on COM port 1 cable has been connected to the COM
active port between the UPS and the host.
Battery Test The battery was determined to be weak
Weak Battery as a result of the battery test.
Battery Test One or more of the following was
Failure detected during a battery test:
• UPS output regulation failure was
detected.
• A battery module warning or failure
occurred.
• A system control failure occurred.
Battery Cabinet This is intended to detect a situation
Not Connected where a Modular battery cabinet has
been connected for communication, but
the power busses are not connected.
Don't Remove SC The only good System Control Module
lock lever was raised with the output on
and the unit is not on bypass.
Failure: Select The System Controller detected a failure.
Manual Bypass Select manual bypass so that the unit can
be serviced.
Output Off - This event informs the user that bypass
bypass unavailable was not qualified so the unit dropped the
load to protect itself.
Last UPS Shutdown REPO switch was pressed.
By Emergency
Power Off
External Battery The energy delivered from the Non-
Module Warning Modular battery did not meet
programmed battery capacity.
Battery Module A battery module is not ready. In most
Not Ready cases, one or more battery modules
should indicate a warning/failure
condition.
Power Module A power module is not ready. In most
Not Ready cases, one or more power modules
should indicate a warning or failure
condition.
Cause
Engage the manual bypass switch (located at the bottom
front on the left hand corner of the unit). Once engaged,
the switch may be de-asserted to return to normal
operation.
Check for a wiring problem to the Shutdown On Battery at
the COM1 connector. If this problem is not addressed, the
unit will shut down shortly after switching to battery
operation.
Depending on the age of the batteries, it may be
appropriate to replace all batteries in the system.
Schedule a battery test so that the system operation is
double-checked once the batteries become fully charged.
Replace the battery modules that have active failures/
warnings. Depending on the age of the batteries, it may be
appropriate to replace all batteries in the system.
Schedule a battery test so that the system operation is
double-checked once the batteries become fully charged.
Check that the Modular Battery breaker is closed. Verify
proper connections between UPS and Modular Battery
Cabinet.
• Lower the lock lever on the System Control Module.
• Provide qualified bypass power so that transfer to
• Add a redundant System Control Module so that the load
Transfer UPS to manual bypass and contact Liebert
Global Services.
Verify that the UPS's bypass source is qualified (amplitude
and frequency). Verify that the configuration voltage and
frequency settings are properly selected.
If REPO wasn't pressed, check for REPO wiring problems.
Verify proper connections between UPS and Non-Modular
Battery Cabinet. Reenter the amp-hour rating for the
external battery (set the amp-hour entry to zero and press
the return key, then reset it to the appropriate value for the
external battery). If the problem persists, the external
battery should be replaced.
Ensure that the battery module is fully seated and the 1/4
turn fastener is engaged. If the problem persists, replace
the battery module with warning/failure condition indicated
at the User Interface. If no User Interface warning/failure
of battery module, look for the battery module with LEDs
indicating a problem and replace that unit.
Ensure that the power module is fully seated and the 1/4
turn fastener is engaged. If the problem persists, replace
the power module with warning/failure condition indicated
at the User Interface. If no User Interface warning/failure
of power module, look for the power module with LEDs
indicating a problem and replace that unit.
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Action
bypass is possible.
is not dropped.
Troubleshooting