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Operation
Normal Operation
During normal operation, the first line of the control panel's LCD
screen shows the UPS system's operating mode: ONLINE,
ECONOMY, ON BATTERY or BYPASS.
ONLINE: The UPS system uses double conversion to provide
precision-regulated AC power while utility power is available and
switches to ON BATTERY mode instantly if utility power is
interrupted (zero transfer time).
ECONOMY: The UPS system provides AC power at high
efficiency while utility power is within ±10% of nominal voltage
and switches to ON BATTERY mode quickly if utility power is
interrupted. If utility power is not within ±10% of nominal voltage,
the UPS system switches to ONLINE mode.
ON BATTERY: If utility power is interrupted, the UPS system
provides backup AC power from battery as long as battery power
lasts. It switches back to ONLINE or ECONOMY mode if utility
power becomes available and shuts down if battery power is
depleted.
BYPASS: The UPS system provides filtered AC power to equipment
while utility power is available and shuts down if utility power is
interrupted.
Industrial Power Feature: If the UPS system detects an output
voltage fluctuation lasting more than 5 ms, the UPS system will
switch from ONLINE mode to BYPASS mode, returning to
ONLINE mode when the output returns to normal.
On Battery Alarm
The alarm beeps and the "BATTERY" LED illuminates when the UPS system operates in ON BATTERY mode. If the battery charge level
is 50% or more, the UPS system will beep every two seconds. If the battery charge level is less than 50%, the UPS system will beep twice
per second. If the battery is nearly depleted, the UPS system will beep continuously. To silence the alarm, press the "ON/MUTE" button. The
"BATTERY" LED will remain on after you silence the alarm.
Overload Messages
When the UPS system detects an output overload, the LCD screen
displays an overload message:
LOAD = XXX% X.XXKW
After it detects the overload, the UPS system will begin a countdown.
If it is still overloaded at the end of the countdown, the UPS system
will automatically switch to BYPASS mode to protect the inverter.
201102089 93-2982.indb 19
continued
OVERLOAD!
The second line of the control panel's LCD screen shows basic power
conditions, such as load, input voltage/frequency, output voltage/
frequency and battery voltage. Push the scroll up and scroll down
buttons to browse through this information in the sequence shown
below.
00.00 KW / 000%
00.00 KVA / 000%
INPUT VOLTAGE
BYPASS VOLTAGE
OUTPUT VOLTAGE
BATTERY CAPACITY
REMAINING TIME
ONLINE 10KVA
The countdown duration varies with the size of the overload:
Overload Condition
106% - 125%
126% - 150%
>150%
If the overload is less than 106%, the UPS system will continue to
operate indefinitely, but the overload should be corrected as soon as
possible.
19
ONLINE MODE
STANDALONE
000V / 00.0Hz
000V / 00.0Hz
000V / 00.0Hz
000V / 000%
00.00 / 000%
V04 CV01
Countdown Duration
1 Minute
30 Seconds
Immediate
7/11/2011 3:49:32 PM
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