3‐6. Operating Mode Description
Operating mode
Description
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
When input frequency is within 40 Hz to 70
Converter mode
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
Bus start fail
Bus over
Bus under
Bus unbalance
Inverter soft start fail
Inverter voltage high
www.powerwalker.com
Fault code
Icon
Fault event
01
x
Inverter voltage Low
02
x
Inverter output short
03
x
Battery voltage too high
04
x
Battery voltage too low
11
x
Over temperature
12
x
Over load
Page 13
LCD display
Fault code
13
14
27
28
41
43
EN
Icon
x
x