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2-2 HP Uninterruptible Power System R1500 XR Models User Guide
continued
Item Description Meaning/Function
5 Utility LED (
) Flashing Red—Utility input voltage is outside the +20% to -30%
configured nominal range.
Green—Utility voltage is present and output is on, or utility voltage has
returned to the voltage range for which the UPS has been configured
(UPS is supplying utility power and the audible alarm should be reset).
Flashing Green—Utility voltage is present and the UPS is in Standby
mode. Output is off. Batteries charge if needed.
6 Overload LED Red—UPS load exceeds maximum power available.
7 76% to 100% load Green—UPS load approximately 76% to 100% of maximum power.
8 51% to 75% load Green—UPS load approximately 51% to 75% of maximum power.
9 26% to 50% load Green—UPS load approximately 26% to 50% of maximum power.
10 0% to 25% load Green—UPS load approximately 0% to 25% of maximum power.
11 Configure Mode On
LED
Green—UPS is in Configure mode (seen when front bezel removed).
12 Configure button Places the UPS in Configure mode (seen when front bezel removed).
13 Test/Alarm Reset
button
Resets alarms or initiates self-tests.
14 Standby button Places the UPS in Standby mode (turns output load segments off).
15 On button Starts UPS powering the load.
Modes of Operation
The UPS has three modes of operation:
• Standby Mode
— No power is available at the UPS output receptacles.
— The UPS charges the batteries as necessary.
• Operate Mode
— Power is available at the UPS output receptacles.
— The UPS charges the batteries as necessary.
• Configure Mode
— Power is available at the UPS output receptacles.
— The UPS charges the batteries as necessary.
— The UPS configuration can be updated.