Operation and Display Panel
Liebert
®
GXT4
™
34
3.4.4 Prompt List
A prompt screen is displayed during the operation of the system to alert you to certain conditions
and/or to require your confirmation of a command or other operation. See Table 6 for the system
prompts and meanings.
3.4.5 Warning List
All UPS warning messages are described in Table 7.
Table 6 Prompts and meanings
Prompt Meanings
Mains Power Restored
The mains power returns and the UPS transfers back to mains (AC)
mode.
UPS Return From A Low Battery Condition The UPS transfers back to mains (AC) mode from battery low mode.
UPS Return From Battery Mode The UPS transfers back to mains (AC) mode from battery mode.
UPS Self Test Successful The UPS self-test is successfully performed.
UPS Shutdown Command Received The UPS shut down was initiated through communication.
UPS Turn Off The UPS shuts down and has no output power.
UPS Turn On
The UPS starts up successfully and supplies protected power to the
load.
UPS Shutdown Process Had Been
Cancelled
The shutdown command sent through Liebert MultiLink or SNMP
card to the UPS is canceled,
ECO Mode Enabled The UPS is configured to ECO mode operation,
ECO Mode Disabled
The UPS is configured to Online mode, supplying protected power to
the load through the inverter.
UPS Internal Temperature Return To
Normal
The internal temperature of the UPS recovers to normal range.
UPS Load Return From Overload
The loads are reduced, and the UPS recovers to normal state from
overload.
Load On Inverter The inverter is on and supplies protected power to the load.
Load On ECO Bypass
The UPS is on ECO mode; the mains is supplying power to the load
directly to reduce energy usage.
Bypass Power Restored
The bypass power recovered and the UPS can now transfer to
bypass.
Table 7 Warning list
Warning Description
Utility power not available
The utility power is not available, or it cannot satisfy the requirements
for the UPS to operate
UPS batteries low and exhausted soon The battery capacity is low and will be exhausted soon
UPS has switched to battery mode
The utility power is abnormal or the PFC side is faulty, the UPS
transfers back to Battery mode
Load on Bypass
The UPS transfers to Bypass mode, at this point, the input utility power
supplies power to the load directly, and the load is not protected
Input power wiring error L-N line reverse or N line not connected
Bypass power not available
The bypass power is not available, or it cannot satisfy the requirements
for the UPS transfers to bypass
UPS Maintenance bypass output The UPS transfers to maintenance bypass
AC input not qualified, cannot start UPS The utility power is not qualified, the inverter cannot be powered up
Output disabled REPO terminal connect error
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