12
3-6. Operating Mode Description
Operating mode Description
LCD display
Online mode
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 online
mode.
ECO mode
Energy saving mode:
When the input voltage is within voltage
regulation range, UPS will bypass
voltage to output for energy saving.
Frequency
Converter mode
When input frequency is within 40 Hz to
70 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.
Battery mode
When the input voltage is beyond the
acceptable range or power failure and
alarm is sounding every 4 second, UPS
will backup power from battery.
Bypass mode
When input voltage is within acceptable
range but UPS is overload, UPS will enter
bypass mode or bypass mode can be set
by front panel. Alarm is sounding every
10 second.
Standby mode
UPS is powered off and no output supply
power, but still can charge batteries.
3-7. Faults Reference Code
Fault event
Fault code Icon Fault event
Fault code Icon
Bus start fail
01
x
Inverter voltage Low
13
x
Bus over
02
x
Inverter output short
14
Bus under
03
x
Battery voltage too high 27
Bus unbalance
04
x
Battery voltage too low
28
Bus short
05
x
Over temperature
41
x
Inverter soft start fail
11
x
Over load
43
Inverter voltage high
12
x