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4. Operation
11: Hot Standby Function Setting
Interface Setting
Parameter 2:
HS.H: Indicates hot standby function.
Parameter 3: Enable or disable hot standby function.
YES: Hot standby function is enabled. The current UPS is set to host the hot standby function and
will restart after AC recovery, even without the battery connected.
NO: Hot standby function is disabled. The UPS is running in Normal Mode and cannot restart
without battery.
12: Neutral Loss Detection
Interface Setting
Parameter 2:
N.L: Indicates neutral loss detection function.
Parameter 3:
DIS: Disable the neutral loss detection function. The UPS will not detect a neutral loss.
ATO: The UPS will automatically detect whether or not the neutral is lost. If neutral loss is
detected, an alarm will be generated. If the UPS is turned on, it will transfer to Battery Mode.
When neutral is restored and detected, the alarm will automatically be muted and the UPS will
automatically return to Normal Mode.
CHE: The UPS will automatically detect the neutral loss. If neutral loss is detected, an alarm
will be generated. If the UPS is turned on, it will transfer to Battery Mode. When neutral is
restored, the alarm will NOT be muted automatically and the UPS will NOT return to Normal Mode
automatically.
Here, you must mute the alarm and make the UPS manually return to Normal Mode. The
operation is: First, enter this menu and press the “Enter” key to make the “CHE” flash. Second,
press the “Enter” key again to activate the neutral detection (check). If neutral is detected, the
alarm will be muted and the UPS will return to Normal Mode. If neutral is not detected, the alarm
will continue to go off until the neutral is detected at the next manual checking operation.
CHE is the default setting.
13: Battery Voltage Calibration
Interface Setting
Parameter 2: Select “Add” or “Sub” function to adjust battery voltage.
Parameter 3: The voltage range is 0V to 9.9V. The default value is 0V.
14: Charger Voltage Adjustment
Interface Setting
Parameter 2: Choose Add or Sub to adjust charger voltage.
Parameter 3: The voltage range is 0V to 9.9V. The default value is 0V.
Notes:
*Before making voltage adjustments, be sure to disconnect all batteries first to get the accurate charger
voltage.
* Any modification should be suitable to battery specifications.
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