15
Buck mode when
AC is normal.
When the input voltage is higher than the voltage
regulation range but lower than high loss point, the buck
AVR will be activated.
Boost mode when
AC is normal.
When the input voltage is lower than the voltage regulation
range but higher than low loss point, the boost AVR will be
activated.
Battery mode
When the input voltage is beyond the acceptable range or
power failure, the UPS will backup power from battery and
alarm is sounding every 10 seconds.
Standby mode
UPS is powered off and no output supply power, but still
can charge batteries.
Fault mode
When a fault has occurred, the ERROR icon and the fault
code will be displayed.
3-7. Faults Reference Code
Fault event
Fault code Icon Fault event
Fault code Icon
Bus start fail
01
x
Inverter output short
14
x
Bus over
02
x
Battery voltage too
high
27
x
Bus under
03
x
Battery voltage too low 28
x
Inverter soft start fail 11
x
Over temperature
41
x
Inverter voltage high
12
x
Overload
43
Inverter voltage Low
13
x
Charger failure
45
x
