Vertiv Liebert EXS Installer/User Manual page 63

Table A.2 UPS Alarm and Warning Messages (continued)
Alarm/Warning Description
DC/DC fault A failure of the DC/DC charger has been detected
Electric leak The UPS has detected a short between the DC bus
alarm or battery and the UPS enclosure
The UPS inverter is OFF due to depletion of battery
EOD turn off
power
At least one cooling fan has failed or is not operating
Fan fault
with proper air flow
All faults have been cleared by manual initiation from
Faults cleared
the display
The UPS output has been shut down to recycle
Guaranteed
output power after the low battery pre-warning was
shutdown
issued
The rectifier and charger are OFF due to input
Input abnormal voltage or frequency exceeding normal operating
range
Input back- A rectifier short circuit has been detected while in
feed battery mode
Input neutral The UPS has detected that the input neutral
lost conductor is missing or has been disconnected
The UPS has detected that the input ground
Input PE lost
conductor (PE) is missing or has been disconnected
Input phase
The AC rectifier input phase rotation is reversed.
reversed
A fault in the UPS inverter has occurred and the load
Inverter fault
will transfer to bypass power if available
The connected equipment has exceeded the
Inverter
inverter ratings. The load will transfer to bypass
overload
power if available, otherwise it will shutdown
Inverter relay
The inverter relay has shorted.
welded
Load off due to
The UPS received a command to shut down while on
shut down on
battery power
battery
Local parallel
Parallel settings are different
setting async
Local settings In a parallel system, the local UPS parameters have
sync OK been synchronized with the other units in the system
Manual power
The UPS was manually turned ON from the display
ON
Manual shut off The UPS was manually turned OFF from the display
Appendices
Action
Contact VertivTechnical Support
Contact VertivTechnical Support
Check the upstream input breaker(s) to ensure they are
closed and wait for input power to return
Contact VertivTechnical Support
None required
None required
Check the upstream input breaker(s) to ensure they are
closed
Contact VertivTechnical Support
Call a qualified electrician to verify the input neutral
connection or Contact VertivTechnical Support
Call a qualified electrician to verify the input ground
connection or Contact Vertiv Technical Support
Call a qualified electrician to verify the input phase rotation
or Contact VertivTechnical Support
Contact VertivTechnical Support
Verify the connected load and disconnect any
unauthorized equipment or check if load is properly
balanced
Contact VertivTechnical Support
Verify the reason for the remote command and then
restart the UPS
Verify the parallel settings in each unit to ensure they are
the same or contact VertivTechnical Support
None required
None required
None required
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