User Manual

44
 Fixed Frequency: Sets the fixed value of the output frequency on the Fixed mode.
Caution: The wrong frequency settings may damage the connected equipment. Make sure the selected frequency
is correct for the connected equipment. An alert warning message will remind you of the following conditions:
 The frequency mode has changed from the Follow-up mode to the Fixed mode, and the fixed frequency is
not equal to the utility frequency.
 The frequency mode is Fixed mode and the fixed frequency is going to be changed.
 ECO Mode: The UPS will enter bypass mode according to the utility voltage if it is in range of thresholds or the
utility frequency is within 3Hz of the utility frequency. If the utility voltage or the utility frequency exceeds
thresholds, the UPS will supply battery power to its loads.
If this threshold is set to 10% and the current utility voltage is 120 V, the UPS will enter bypass mode as long as
the utility voltage within the range of 108 V ~ 132 V. Once the voltage threshold is exceeded, the UPS will supply
battery power to its loads.
Caution: Once the UPS is made to enter Fixed mode, Generator Mode or Manual Bypass when the UPS is in
the ECO mode, the UPS will leave ECO mode.
Users can configure exclusive days and exclusive time to tell the UPS when not to enter ECO mode.
 Exclusive Days: Sets the days for UPS not to enter ECO mode.
 Exclusive Time: Sets the time period for UPS not to enter ECO mode.
Power Failure Condition
When the utility power exceeds specific thresholds, the UPS will supply battery power to the connected equipment.
 Utility Voltage Upper/Lower Bound: Before utility power is provided to the UPS, the UPS will detect whether
utility voltage exceeds the threshold. If utility voltage exceeds the threshold, the UPS will supply battery power to
the connected equipment.
 Output Voltage Upper/Lower Bound: Before the UPS uses utility power as its output power, the UPS will detect
whether utility voltage exceeds the threshold. If the utility voltage exceeds the threshold, the UPS will supply
battery power to connected equipment.
Note: High/Low Utility Voltage Threshold & High/Low Output Voltage Threshold settings only come into
effect after a restart of the UPS.
 Frequency Upper/Lower Bound: When the utility frequency exceeds the threshold, the UPS will supply battery
power at a fixed frequency to the connected equipment.
 Detected Sensitivity: When the UPS detects that utility voltage is out of range, the UPS will switch to battery
mode to protect the equipment plugged into the UPS. Low sensitivity has a wider voltage range and the supplied
power may vary more. The UPS switches to battery mode rarely and also saves more battery power. The power
from a fuel generator may cause the UPS to switch to battery mode more frequently, and low sensitivity is
recommended. High sensitivity allows the UPS to supply more stable power to equipment but switches to battery
mode frequently.