Vertiv Liebert GXT5 Series Installer/User Manual page 38

Frequency selection
Selects the frequency of the output� Options are:
• Auto, Bypass enabled = Automatically detects frequency of utility/mains power and sets the nominal
frequency to match and bypass mode is enabled (default)�
• 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� Options are:
• Normal = Connected load is always powered through the UPS inverter� ECO mode is disabled�
• 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�
ECO voltage range
(Option only available when Run mode is set to ECO�) Sets the percentage that the input voltage may be
above or below the selected output voltage setting and remain in ECO mode�
• ± 5%
• ± 10% (default)
• ± 15%
Vertiv | Liebert® GXT5™ | Installer/User Guide 33