Njoy Cadu Series User Manual page 11

Battery
replacement
alarm
Overload
in battery
mode
Fault mode
Icons will flash.
Alarm will beep every
2 seconds. Only
available for the model
with communication
function.
When overload occurs,
alarm will beep every
0.5 second.
A fault occurs in
the UPS. Alarm will
continue beeping.
11