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3-6. Operation mode description
3-7. Fault codes
Battery mode
When the input voltage exceeds the acceptable range or
during a power failure, the UPS will start supplying power
from the battery while the alarm will beep every 5 seconds.
Bypass mode
When input is within acceptable voltage range but the UPS
is overloaded, the UPS will transfer to bypass mode or it can
be manually changed to bypass mode using the front panel
controls. The alarm will sound once every 10 seconds in this
case.
Standby mode
The UPS is powered off and there is no power supplied to
the loads; batteries, however, can still be charged.
Fault
The UPS is in fault mode when it fails to provide output
power to the loads. The ERROR icon and the fault code is
displayed on the screen.
Fault event
Fault
code
Icon
Fault event
01
02
03
11
12
13
14
Fault
code
27
28
2A
41
43
45
49
Icon
x
x
x
x
x
x
x
x
x
x
Battery voltage too high
Battery voltage too low
Charger output shorted
Over temperature
Overload
Charger failure
Input current above the
acceptable limits
Bus start failure
Bus over
Bus under
Inverter soft start failure
High inverter voltage
Low inverter voltage
Inverter output shorted
Operation mode
Online mode
Description
LCD display
When the input voltage is within acceptable range, the UPS
will supply pure and stable AC power to connected loads.
The UPS will also charge the battery while in online mode.
ECO mode
(Efficiency
Corrective
Optimizer)
Frequency
converter mode
Energy saving mode:
When the input voltage is within the voltage regulation
range, the UPS will bypass voltage to loads for energy
saving. The UPS will also charge the battery while in ECO
mode.
When input frequency is between 40Hz and 70Hz, the UPS
can be set at a constant output value of 50Hz or 60Hz. The
UPS will still charge the battery while in this this mode.
3-8. Warning indicators
Warning
Icon (blinking) Code
Alarm
Beeps once every 2 seconds
Beeps once every second
Beeps twice every 10 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds.
(In this case, the UPS turns off
to remind users there is some-
thing wrong with the batteries)
Beeps once every 2 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds
Beeps once every 2 seconds
Low battery
Overload
Excessive input current
Battery is not connected
Overcharge
Site wiring fault
EPO enable
Over temperature
Charger failure
Battery fault
Bypass voltage out of range
Unstable bypass frequency
Battery replacement
EEPROM error
Note:
The
Site wiring fault
function can be enable/disabled via software.
Rack display
Tower display
Summary of Contents for FDC-2012R-I
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