Vertiv Liebert EXS Installer/User Manual page 62

Table A.2 UPS Alarm and Warning Messages (continued)
Alarm/Warning Description
Battery mode The UPS is operating on battery power
Battery The battery temperature has exceeded the
overtemp threshold setting
Battery
The battery polarity is reversed
reversed
Battery series The battery detected does not match the setting
not qualified parameter
Battery test The battery capacity dropped below the threshold
failed for the battery test
Battery test The battery test has been started either by
started automatic or manual initiation
Battery test The battery test has been stopped either by
stopped completion or manual initiation
Battery to utility The load is powered by bypass (utility) power due to
transition depletion of battery power or battery failure
Battery voltage The battery voltage is outside of normal operating
abnormal parameters
Bypass The bypass input voltage or frequency exceeds
abnormal normal operating range
Bypass The bypass input voltage or frequency exceeds
abnormal in normal operating range; the UPS is operating in
ECO mode online or battery mode
Bypass back- A bypass short circuit has been detected while in
feed battery mode
This alarm will be generated if in the settings menu, if
Bypass disabled the output frequency is set to Auto, BypDisa or 50
Hz, BypDisa or 60 Hz, BypDisa
Bypass mode The UPS is operating on bypass power
Bypass over The connected equipment has exceeded the bypass
current ratings.
Bypass phase The AC bypass input phase rotation is reversed in a
reversed single module system system.
The charger output voltage is abnormal and the
Charger fault
charger has been turned off
Communication An internal communication problem has been
fail detected
DC bus A DC bus fault has occurred and the load will transfer
abnormal to bypass power if available
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Action
Check the upstream input breaker(s) to ensure they are
closed
Verify the ventilation openings are not block or Contact
Vertiv Technical Support
Call a qualified electrician to verify the battery wiring or
Contact Vertiv Technical Support
Call a qualified electrician to verify the battery wiring or
Contact Vertiv Technical Support
Replace battery
None required
None required
Check the upstream input breaker(s) to ensure they are
closed and wait for input power to return or Contact Vertiv
Technical Support
Contact VertivTechnical Support
Check the upstream bypass input breaker(s) to ensure
they are closed
Check the upstream bypass input breaker(s) to ensure
they are closed
Contact Vertiv Technical Support
None required or change setting to Auto, BypEna
Check UPS display for other alarms or Contact Vertiv
Technical Support
Verify the connected load and disconnect any
unauthorized equipment or check if load is properly
balanced
Call a qualified electrician to verify the input phase rotation
or Contact Vertiv Technical Support
Contact VertivTechnical Support
Contact VertivTechnical Support
Contact VertivTechnical Support
Vertiv | Liebert® EXS™ Installer/User Guide