Ain modular UPS manual
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2 3
6 7
A B
C
E F
1
3
5
7
9
B
D
F
CCCC-CCCC
（
Rectifier Alarm
）
：
Byte 1
8 9 A B C D E F Rectifier fault
4 5 6 7
C D E F Rectifier over temperature
2 3
6 7
A B
C
E F Inverter over temperature
1
3
5
7
9
B
D
F Rectifier over current
8 9 A B C D E F Auxiliary power 1 fault
4 5 6 7
C D E F Auxiliary power 2 fault
2 3
6 7
A B
C
E F Input Thyristor failed
1
3
5
7
9
B
D
F Discharge Thyristor failed
Byte 2
8 9 A B C D E F Charge Thyristor failed
4 5 6 7
C D E F Fan fault
2 3
6 7
A B
C
E F Fan Power fault
1
3
5
7
9
B
D
F DC Bus over voltage
8
9
A B C D E F DC Bus below voltage
4
5
6
7
C D E F DC bus unbalance
2
3
6
7
A B
C
E F Mains Site Wiring Fault
1
3
5
7
9
B
D
F Soft start failed
Byte 3
8 9 A B C D E F Input Neutral line missing
4 5 6 7
C D E F Battery reverse
2 3
6 7
A B
C
E F No battery
1
3
5
7
9
B
D
F P-Battery Charger fault
8 9 A B C D E F N-Battery Charger fault
4 5 6 7
C D E F Battery under voltage
2 3
6 7
A B
C
E F Battery over voltage
1
3
5
7
9
B
D
F Battery low pre-warning
Byte 4
8 9 A B C D E F Mains freq. abnormal
4 5 6 7
C D E F Mains volt. Abnormal
2 3
6 7
A B
C
E F
1
3
5
7
9
B
D
F
8 9 A B C D E F
4 5 6 7
C D E F
2 3
6 7
A B
C
E F
1
3
5
7
9
B
D
F
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