17
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.
Battery test
mode
UPS will turn off charger and check if
battery and DC/DC are normal.
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.
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 fails
01
x
Inverter output
short-circuited
14
Bus over
02
x
Battery voltage is too high 27
x
Bus under
03
x
Battery voltage is too low
28
x
Bus unbalance
04
x
Over temperature
41
x
Inverter soft start fails
11
x
Over load
43
Inverter voltage is high 12
x
Charger fault
45
x
Inverter voltage is low
13
x
