Operating Modes; Normal Mode - Avaya 4500 VA Installation And Operator's Manual

UPS Operation

Operating Modes

Utility
Power
Surge
Suppression
EMI/RFI
Filters
Battery Modules
Battery
42
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.
Rectifier
Battery
Figure 14. UPS Block Diagram

Normal Mode

During Normal mode, the
displays the percentage of UPS load capacity being used by the protected
equipment (see Figure 15).
OVERLOAD
I1
I2
I3
OUTPUT ON
LOAD ON
APPROX.
81-100%
LOAD
Figure 15. Normal Operation Indicators
Avaya Model 6000 UPS Operator's Manual
Bypass Line
Inverter
Battery
Charger
µ
i ndicator illuminates and the front panel
LOAD ON LOAD ON LOAD ON
APPROX. APPROX. APPROX.
61-80% 41-60% 0-40%
LOAD LOAD LOAD
167-405-115 Issue 5 Uncontrolled Copy
S
Receptacle
Output
or
EMI/RFI
Terminal
Filters
Block
Receptacle
Emergency
or
Power-Off
Terminal
Block
LOAD OFF
NORMAL
UTILITY