Vertiv Liebert GXT5 Series Installer/User Manual page 48

Table 4-4 Alarm Messages
MESSAGE DESCRIPTION
Aux� power fault UPS internal auxiliary power voltage fault� Contact Vertiv Technical Support�
Battery cabinet
More than 10 external battery cabinets are connected to the UPS� Disconnect excess battery cabinets�
connect abnormal
The battery has reached the end of discharge and mains/utility power is unavailable� Restore the mains power� The UPS will
Battery EOD
power off if it is not restored�
This alarm occurs when the battery approaches the EOD� After the pre-warning, the battery capacity allows two minutes
Battery low pre-
discharge at full load� The user can set the time with the Low Battery Time setting in Battery settings from 2 min - 30 min, (2 min
warning
by default)� This allows for any loads to be shut down before the system powers off if utility power cannot be restored�
Battery mode The UPS operating in battery mode� The alarm will clear when utility power is restored�
Battery ambient temperature too high� Ensure that the battery ambient temperature is not higher than setting value 40 ~ 60 °C
Battery overtemp
(default: 50 °C)
Battery replacement The system time is past the time set for the batteries to be replaced� If you have disabled the "Batt� note duration" or have no
timeout batteries installed, the alarm will not occur�
Battery reversed The battery positive and negative are reversed� Reconnect the battery and check the battery cable connections�
Battery test fail The voltage of the battery was low when the periodic or manual self-test was run� Battery replacement is Recommended�
Battery test started The battery periodic self-test or manual self-test was started� This will display in the log whenever the event occurs�
Battery test stopped The battery periodic self-test or manual self-test has finished� This will display in the log whenever the event occurs�
Battery to utility
The UPS has transferred the load to the mains power from the battery� This will display in the log whenever the event occurs�
transition
Battery voltage
The battery voltage exceeds the normal range� Check if the battery terminal voltage exceeds the normal range�
abnormal
May be caused by bypass voltage and frequency outside of range, bypass power-off and incorrect bypass cables connection�
Bypass abnormal Check that the bypass voltage and frequency are within the setting range�
Check the bypass cables connection
Bypass abnormal in May be caused by ECO bypass voltage and frequency outside of range, ECO bypass power-off, and incorrect ECO bypass cables
ECO mode connection� Check that the ECO bypass voltage and frequency are within the setting range� Check the bypass cable connection
Bypass mode The UPS is on bypass� This will clear when the UPS returns to Normal mode�
Bypass over-current The load is drawing more current than the UPS is rated to supply in bypass mode� Reduce the load�
Charger fault The charger output voltage is abnormal and the charger is off� Contact Vertiv Technical Support�
Communication fail Internal communication is abnormal� Check that the communication cables are connected correctly�
The inverter is off due to DC bus voltage out of acceptable range� The load will transfer to bypass if the bypass is available
DC bus abnormal
because the bus voltage is outside of the acceptable range�
The discharger is faulty, because the bus voltage exceeds the range when the discharger starts� Contact Vertiv Technical
DC/DC fault
Support�
EOD turn off The inverter is off due to EOD� Check the mains power-off state and restore the mains in time
Fan fault At least one fan is faulty� Check if the fan is blocked or the cable connection is loose�
Faults cleared The faults have been cleared using Settings > Controls > Clear faults� This will display in the log whenever the event occurs�
Guaranteed The battery has finished discharging, then system shuts down because Guaranteed Shutdown is enabled (see Guaranteed
shutdown shutdown on page 37)� This alarm will clear when the UPS is turned on again�
The rectifier and charger are off due to the mains voltage and frequency exceeding the normal range� Check that the rectifier
Input abnormal
input phase voltage and frequency exceed the normal range or that the mains has power-off
Input ground lost Check that the PE line is well connected and that the alarm can be cleared at the display�
Input phase reversed The mains input line and neutral are reversed� Shut off external input breaker and connect the lines correctly�
Insufficient capacity The UPS is on bypass and is started with a load greater than 105% of the rated capacity� Reduce the load to the rated capacity or below
to start to start the unit�
The inverter is turned off when the inverter output voltage or current exceed the ranges set� If bypass is available, the UPS will
Inverter fault
transfer to bypass mode, otherwise the system will power off� Contact Vertiv Technical Support�
Vertiv | Liebert® GXT5™ | Installer/User Guide 43