Vertiv Liebert GXT5 Series Installer/User Manual page 49

Table 4-4 Alarm Message (continued)
MESSAGE DESCRIPTION
Inverter load capacity is larger than the rated value, overload delay time is up, inverter shuts down� If bypass is available, the
Inverter overload system will transfer to the bypass mode, otherwise the system will power off� Check the output load� If overloaded, reduce the load,
and the system will transfer to the inverter mode after five seconds with no alarm�
Load off due to
A short has occurred on the output� Check the output cables and for any equipment that may have shorted�
output short
Load off due to
The system was shut down in battery mode� This will clear when the system is turned back on�
shutdown on battery
Manual power- on The system was turned on via the display panel� This will display in the log whenever the event occurs�
Manual shutdown The system was shut down via the display panel� This will display in the log whenever the event occurs�
Manual shut-off Displayed when the user shuts-down UPS output� This will display in the log whenever the event occurs�
No battery No battery detected� Check the battery and battery cable connection(s)�
Operating on
The UPS output is being powered by the inverter� This will display in the log whenever the event occurs�
inverter
Output disabled The system is in standby state and the dry contact shutdown is enabled� Check if the shutdown dry contact is enabled�
Output off due to The bypass voltage or frequency is outside the acceptable range, and the bypass is in stand-by mode� Check that the input is
bypass abnormal normal�
Output off due to
The output is off due to an overload of the UPS output, and the bypass voltage or frequency is outside the acceptable range�
overload & bypass
Check that the input is normal�
abnormal
Output off, voltage is This occurs when the output is off and the system detects that there is still voltage on the output� Check output equipment for
not zero backfeeds or contact Vertiv Technical Support�
Output pending Remote shutdown has been initiated, and the system will turn off shortly�
Output short A short has occurred on the output� Check the output cables and for any equipment that may have shorted�
Output voltage The output voltage is outside the normal voltage range� The UPS will power off� Check output settings or contact Vertiv Technical
abnormal Support�
The rectifier is off because the bus voltage is out of the acceptable range when the rectifier starts� Contact Vertiv Technical
Rectifier fault
Support�
The output power is larger than the rectifier overload point� Check that the input voltage meets the output load, mains input 176 V
Rectifier overload
~ 100 V, the load 100% ~ 50% linear derating�
Remote power- on The UPS was powered on remotely� This will display in the log whenever the event occurs�
Remote shut- off The UPS was powered off remotely� This will display in the log whenever the event occurs�
Remote shutdown Any mode shutdown was initiated by the dry contact input� This will display in the log whenever the event occurs�
Shutdown caused by the REPO terminal Normally-Closed contact input opening� This will display in the log whenever the event
REPO
occurs�
Restore factory On the Maintenance page, "Restore Factory Defaults" has been set while the UPS is in the stand-by state� This will return settings
defaults to their factory settings�
During the UPS operation, the system checks that the heat sink temperature exceeds the setting range� If over temperature,
please check:
Shutdown due to
Ambient temperature too high or not
over temp
Dust is blocked or not
Fan fault or not
System fault This alarm occurs when the model configuration is incorrect� Contact Vertiv Technical Support�
Internal heat sink temperature too high, and the inverter is off� The alarm can only be silenced if the heat-sink temperature is lower
than the alarm setting� The system can automatically start after over temperature fault is solved�
If over temperature, please check:
System over temp
Ambient temperature too high or not
Dust is blocked or not
Fan fault or not
The UPS does not start because there is no mains/utility power or it is outside of the range of the voltage required to supply the
Turn on fail
full load� Check the AC input power�
44 Operation and Display Panel