• Auto, Bypass disabled — Automatically detects frequency of utility/mains power and sets the nominal
frequency to match and bypass mode is disabled.
• Frequency converter 50 Hz — Bypass mode is disabled and the UPS provides 50-Hz output from any
qualified utility/mains power.
• Frequency converter 60 Hz — Bypass mode is disabled and the UPS provides 60-Hz output from any
qualified utility/mains power.
Bypass voltage upper limit
Sets the percentage that the input voltage may be above the selected output voltage setting and remain in
Bypass mode.
• +10% (default)
• +15%
• +20%
Bypass voltage lower limit
Sets the percentage that the input voltage may be below the selected output voltage setting and remain in
Bypass mode.
• -10%
• -15% (default)
• -20%
Run mode
Selects Normal or ECO operation for the UPS.
• Normal — Connected load is always powered through the UPS inverter. ECO mode is disabled (default)
• ECO mode — ECO mode is enabled. The UPS inverter is bypassed, and the connected load is powered by
utility/mains power within the selected ECO voltage and frequency tolerances
Battery Parameter Options
Low battery time
Sounds an alarm when the selected amount of time remaining for the UPS to operate in Battery mode.
• 2 - 30 minutes (default is 2)
Battery periodic test enable
The UPS can periodically self-test the battery.
• Enable
• Disable (default)
Battery periodic test interval
Sets the length of time between periodic test.
• 8, 12, 16, 20, or 26 weeks (default is 8)
Battery periodic test weekday
Sets the day of the week that the battery periodic test is performed.
44 Proprietary and Confidential ©2024 Vertiv Group Corp. 5 Operation and Display Panel
Vertiv™ Liebert® GXT5 UPS Installer/User Guide
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