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21
4 Operation (LED model)
No.
Operating
status
LED indicators
Audible alarm
1
#
2
#
3
#
4
#
5
#
6
#
7
#
8
#
9
#
10
#
13
Utility power abnormal
↑ ↑ ↑ ↑ ● ↑
★
↑ ↑
↑
14
Overload in Battery mode,
pre-alarm
● ●
● ●
Beep
once
every sec
15
Overloaded
in
Normal
mode, pre-alarm
● ●
● ●
Beep
once
every sec
16
Overheating fault
●
● ↑ ↑
Sustained
beep
17
Inverter fault
●
●
↑ ↑
Sustained
beep
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