22
4 Operation (LED model)
No.
Operating
status
LED indicators
Audible alarm
1
#
2
#
3
#
4
#
5
#
6
#
7
#
8
#
9
#
10
#
18
BUS voltage fault
●
●
↑ ↑
Sustained
beep
19
Over voltage of charger
output
●
●
↑
↑
Sustained
beep
20
Output short circuit
● ●
●
↑
Sustained
beep
21
Overload fault
● ●
●
↑
Sustained
beep
22
Battery voltage abnormal
↑ ↑ ↑ ↑ ↑
●
↑
★
↑
23
Reversed polarity (L, N)
of
input
wiring
or
disconnected
with
ground.
↑ ↑ ↑ ↑
●
↑
★
↑
↑
Beep
once
every 2 min.
24
Charger or battery fault
●
★
Beep
once
every sec
25
Fan failure
● ●
●
↑ ↑ ↑
↑
Beep
every
sec
LED indictor description:
●:
On
★:
Flash
↑:
Depending on other conditions