User Manual

MESSAGE DESCRIPTION
Inverter
overload
Inverter load capacity is larger than the rated value, overload delay time is up, inverter shuts down. If bypass is
available, the system will transfer to the bypass mode, otherwise the output is failure. Check that the actualinverter
load capacity, if overloaded, just reduce the load capacity, and the system will transfer to the inverter mode after
five seconds with alarm cleared
Inverter relay
welded
The inverter relay is shorted
Load off due to
output short
The inverter short circuit or the bypass short circuit. Please check it
Load off due to
shutdown on
battery
Shutdown in battery mode
Manual power-
on
Set power-on viaLCD panel
Manual
shutdown
Set shutdown via LCD panel
Manual shut off Displayed when the user shuts-down UPS output.
No battery Check the battery and battery cables connection
Operating on
inverter
The UPS output state is on inverter
Output disabled
The system is in standby state, and the dry contact shutdown is enabled. Check whether the shutdown dry
contact is enabled or not
Output off due
to bypass
abnormal
The bypass is abnormal, and the bypass is in stand-by mode. Check that the bypass input is normal
Output off due
to overload &
bypass
abnormal
The output is off due to output overload and bypass abnormal. Please check it
Output off,
voltage is not
zero
When there is no output, the system detects that the output has a voltage
Output pending Remote shutdown is enabled, and the system will be off
Output short Check that the output cables are not shorted
Output voltage
abnormal
The output voltage exceeds the normal voltage range.
Rectifier fault The rectifier is faulty and off because the bus voltage exceeds the range when the rectifier starts or soft starts.
Rectifier
overload
The output power is larger than the rectifier overload point. Check that the input voltage meets the output load,
mains input 176 V ~ 100 V, the load 100% ~ 50% linear derating
Remote power-
on
Remotely power on
Table 4.4 Alarm Messages (continued)
Vertiv | Liebert® GXT5™ Installer/User Guide
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