Operating Modes; Normal Mode - 3Com Powerware Uninterruptible Power System Prestige Series Installation And Operator's Manual

UPS Operation

Operating Modes

After you install and apply power to the UPS, the UPS filters and
regulates incoming AC power, eliminating noise and voltage spikes, and
provides consistent power to your equipment (see Figure 12). While
power is applied to the UPS, the maintenance-free battery is
automatically kept in a fully-charged condition.
Utility
Power
Surge
Suppression
EMI/RFI Filters
Battery Cabinets
Battery

Normal Mode

During Normal mode, the
displays the percentage of UPS load capacity being used by the protected
equipment (see Figure 13).
48 Powerware
Bypass Line
Rectifier
Battery Battery
Figure 12. UPS Block Diagram
OVERLOAD
SITE FAULT
OVERTEMP
BATTERY
SELF TEST
LOAD ON
APPROX.
81-100%
LOAD
Figure 13. Normal Operation Indicators
® Prestige Series Installation and Operator's Manual for IBM Applications (3000 VA) Uncontrolled Copy
Inverter
Battery
Charger

indicator illuminates and the front panel
LOAD ON LOAD ON
APPROX. APPROX.
61-80% 41-60%
LOAD LOAD
UPS Load
Outlet
LOAD ON LOAD OFF
APPROX. NORMAL
0-40% UTILITY
LOAD