LEGRAND NUMERIC Onfiniti, User And Installation Manual

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3-7. Operating Mode/Status Description
Operating mode/status
AC mode
Description When the input voltage is within acceptable range, UPS will
provide pure and stable AC power to output. The UPS will also
charge the battery at AC mode.
LCD display
CVCF mode Description When input frequency is within 46 to 64 Hz., the UPS can be set
at a constant output frequency, 50 Hz. or 60 Hz. The UPS will
still charge battery under this mode.
LCD display
Battery mode Description When the input voltage is beyond the acceptable range or
power failure, UPS will provide backup power from battery and
alarm will beep every 4 seconds.
LCD display
Bypass mode Description When input voltage is within acceptable range and Bypass is
enabled, turn off the UPS to enter Bypass mode. Alarm beeps
every two minutes.
LCD display
Battery Test Description When UPS is in AC mode or CVCF mode, press ‘Test’ key for
more than 0.5 sec. Then the UPS will beep once and start
‘Battery Test’. The line between I/P and Inverter icons will
blink to remind users on the battery status. This operation is
used to check the battery status.
LCD display
Fault status Description When UPS becomes faulty, it will display fault messages in the
LCD panel.
LCD display
3-8. Fault Code
Fault event Fault code Icon Fault event Fault code Icon
BUS start failure 01 None Inverter output short circuited 14
BUS over 02 None Negative power fault 1A None
BUS under 03 None Battery SCR short circuited 21 None
BUS unbalance 04 None Inverter relay short circuited 24 None
Inverter soft start failure 11 None Over temperature 41 None
High Inverter voltage 12 None CPU communication failure 42 None
Low Inverter voltage 13 None Overload 43
Charger fail fault 45 None
3-9. Warning Indicator
Warning Icon (flashing) Alarm
Battery low Beeps every second
Overload Beeps twice every second
Battery unconnected Beeps every second
Over charge Beeps every second
EPO enable Beeps every second
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