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KESS Power Solutions GmbH / www.kess.at / info@kess.at
8.3.4 ERRoRS, fAULT CodES ANd wARNiNGS
code
Meaning
01
dC bus start-up fault
02
dC bus overvoltage
03
dC bus undervoltage
04
dC bus imbalance
11
inverter soft start fault
12
high voltage in the inverter
13
Low voltage in the inverter
14
inverter output short-circuited
1A
Negative power fault at the output
21
battery thyristor short-circuited
24
inverter relay short-circuited
2A
battery charger short-circuited
at its output
31
CAN communication fault
35
Parallel cable fault
36
Parallel communication fault
41
overtemperature
42
CPU communication fault
43
output overload
6A
battery start-up fault
6b
PfC current fault in battery mode
6C
dC bus voltage change too fast
code
Meaning
01
disconnected battery
07
overcharge in the battery
08
Low battery
09
output overload
0A
fan fault
08
EPo activated
0d
overtemperature
0E
Charger fault
10
L1 input fuse open
21
Line voltages of the UPSs connected
in parallel are different
22
bypass voltages of UPSs connected in
parallel are different
33
UPS locked in bypass after 3
successive overloads in 30 minutes
3A
Maintenance switch cover open
3d
bypass not available
3E
Start-up fault
Tab.18: Error or fault codes (models 4 to 6 kVA)
Tab.19: warning or fault codes (models 4 to 6 kVA)