Vertiv | Liebert® GXT5™ | Installer/User Guide 61
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.
• 50Hz, Bypass disable = Bypass mode is disabled and the UPS provides 50-Hz output from any
qualied utility/mains power.
• 60Hz, Bypass disable = Bypass mode is disabled and the UPS provides 60-Hz output from any
qualied 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
(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.
ECO mode parameters
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%
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