6-10KVA Rack-mount UPS User Manual Trouble shooting
29
Seq.
Items
0
1
Solution
10 10
Reserved
11 11
Reserved
12 12
Reserved
13 13
Input phase A
over current
OK Fault
Check if rectifier IGBT is
broken, DC bus is shorted, or
IGBT drivers are lost, input
voltage display is wrong
14 14
Input phase B
over current
OK Fault
15 15
Input phase C
over current
OK Fault
16 16
Output voltage
Fault
OK Fault
Check if inverter IGBT is
broken, IGBT drivers are lost
17
A1
1 Reserved
18 2
Reserved
19 3
Reserved
20 4
Reserved
21 5
Reserved
22 6
Reserved
23 7
Reserved
24 8
Reserved
25 9
Input voltage
Fault
OK
Fault
Input voltage out of range
26 10
Input Frequency
Fault
OK
Fault
Input frequency out of range
27 11
Input Sequence
Fault
OK Fault
Input sequence is wrong, check
whether input wires connection
is ok.
28 12
REC soft-start
Fault
OK Fault
Check whether rectifier SCR is
broken, or SCR drivers are lost.
29 13
Reserved
30 14
Reserved
31 15
REC over
temperature
OK Fault
Check if the environmental
temperature is over 40, if
rectifier IGBTs is properly