UPS Operation
46
Powerware
®
Prestige Series Installation and Operator’s Manual for IBM Applications (6000 VA)
Uncontrolled Copy
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 14). While
power is applied to the UPS, the maintenance-free battery is
automatically kept in a fully-charged condition.
Receptacle
or
Terminal
Block
Output
EMI/RFI
Filters
Surge
Suppression
EMI/RFI
Filters
Battery
Charger
Battery
Battery
Inverter
Bypass Line
Battery Cabinets
Emergency
Power-Off
Receptacle
or
Terminal
Block
Utility
Power
Rectifier
Figure 14. UPS Block Diagram
Normal Mode
During Normal mode, the
indicator illuminates and the front panel
displays the percentage of UPS load capacity being used by the protected
equipment (see Figure 15).
LOAD OFF
LOAD ON
LOAD ON
LOAD ON
LOAD ON
APPROX.
81-100%
LOAD
APPROX.
61-80%
LOAD
APPROX.
41-60%
LOAD
APPROX.
0-40%
LOAD
NORMAL
UTILITY
OVERLOAD
SITE FAULT
OVERTEMP
BATTERY
SELF TEST
Figure 15. Normal Operation Indicators
