
Xtreme Power Conversion Corporation
E91 User’s Manual
Page 48
Uninterruptible Power Supply
3-8. Warning Code
Warning code
Warning event
Warning code
Warning event
01
Battery unconnected
21
Line situations are differ
-
ent in parallel system
02
IP Neutral loss
22
Bypass situations are dif
-
ferent in parallel system
04
IP phase abnormal
33
Locked in bypass after
overload 3 times in 30
minutes
05
Bypass phase abnormal
34
Converter current unbal
-
anced
07
Over charge
3A
Cover of maintain switch
is open
08
Low battery
3C
Utility extremely unbal
-
anced
09
Overload
3D
Bypass is unstable
0A
Fan failure
3E
Battery voltage too high
0B
EPO enable
3F
Battery voltage unbal
-
anced
0D
Over temperature
40
Charger short circuited
0E
Charger failure