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Operation (special conditions), 1 operation on bypass—voltage out of range, 2 inverter on warnings – Tripp Lite 30kVA User Manual

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While in Bypass Mode, the UPS monitors the input voltage, which on Bypass equals the output voltage. If the output voltage passes out of an acceptable
range (between 15% higher and 20% lower than nominal), the UPS displays the condition on its LCD and stops supplying output power to its load. If
power levels return to an acceptable level, the UPS resumes supplying power to the load, and its LCD reports that output voltage was too high or too low
at one time, but has returned to nominal.

Bypass Voltage Condition

LCD Display Message

>15% Higher than Nominal

BYPASS HI NO O/P

>20% Lower than Nominal

BYPASS LO NO O/P

Was Too High, Now Nominal

BYPASS WAS HI

Was Too Low, Now Nominal

BYPASS WAS LO

5.1 Operation On Bypass—Voltage Out Of Range

5. Operation (Special Conditions)

When the inverter is ON, the LCD Display may show any one of the following warnings:

Condition

LCD Display Message

UPS Output Overload

OVERLOAD 110%

UPS Charger Failure

CHARGER FAILURE

Abnormal Input Frequency

FREQUENCY ERROR

Abnormal Input Phase

PHASE ABNORMAL!

Battery is Depleting*

ON BATTERY

Battery Charge is Nearly Depleted*

BATTERY LOW.

* During a prolonged blackout, users should save files and shut down connected equipment. The “BATTERY
LOW” message indicates the UPS's batteries are nearly out of power and UPS shutdown is imminent

5.2 Inverter On Warnings