UPS R3000 XR Models User Guide

Operation
HP Uninterruptible Power System R3000 XR Models User Guide 2-3
• Auto-Bypass Mode
— The power to the UPS reaches a percentage greater than 110 percent for 10 cycles or
103 percent for 30 seconds.
— The UPS power module fails or is removed.
Charging the Batteries
When the UPS is in Standby mode, allow the batteries to charge before putting the UPS into
service.
IMPORTANT: The batteries charge to:
• 80 percent of their capacity within 3 hours
• 100 percent of their capacity within 24 hours
Charge the batteries for at least 24 hours before supplying backup power to devices.
Placing the UPS in Operate Mode
The UPS can be placed in Operate mode if either of the following conditions apply:
• The UPS is powered up and in Standby mode (the Utility LED is flashing green).
• The UPS is powered down and no utility power is available.
Press and hold the On button (1) until the Utility LED (2) turns solid green, indicating that
power is available at the UPS output receptacles. The UPS acknowledges compliance with a
short beep.
IMPORTANT: If the UPS is using battery power (no utility power present), press and hold the On
button (1) until the audible alarm sounds.
100%
25%
1
2
Figure 2-2: Placing the UPS in Operate Mode