Turning On The Main Circuit Breaker; Charging The Batteries - HP R1500 - UPS XR User Manual

Turning on the Main Circuit Breaker

After a qualified electrician has properly wired the UPS to utility power and has installed all
electronics modules, turn on the AC mains at the service panel. All LEDs come on for three
seconds as part of the system initialization. Each electronics module turns on in sequence
(with approximately 10 seconds between modules), synching up with the utility power. The
Utility LED rapidly flashes green during Startup mode.
After all electronics modules have synchronized, the UPS enters Standby mode, indicated by
the Utility LED slowly flashing green. The system will begin charging the batteries, but will
not assume the load. The system will remain in Standby mode until the UPS On command is
received.
NOTE: The time required to transition from Startup mode to Standby mode can range from 45 seconds
to several minutes, depending on the state of charge of the batteries.

Charging the Batteries

When the UPS is in Standby mode, allow the batteries to charge before putting the UPS into
service. The battery status can be monitored using the LCD display. Refer to the section,
"Displaying the Battery Charge Data," in Chapter 3 for information on how to view current
battery charge on the LCD display.
IMPORTANT: The battery modules will charge to:
•
80 percent of their capacity within 3 hours.
•
100 percent of their capacity within 48 hours.
Charge the batteries for at least 24 hours before supplying backup power to your devices.
HP Uninterruptible Power System R12000 XR Models User Guide
Operation
2-5