SMA America, LLC
Troubleshooting
Technical Description
SI5048U-TUS121440
201
20.8 Warnings and Failure Messages
The meanings of the failures and warnings displayed by the Sunny Island are described in the
following table:
20.8.1 Category INV
Display no.
Level
Description
F109
3
Transformer overtemperature
W110
1
Overtemperature on transformer on slave 1
W111
1
Overtemperature on transformer on slave 2
W112
1
Overtemperature on transformer on slave 3
F113
3
Overtemperature on heatsink
W114
1
Overtemperature on heatsink on slave 1
W115
1
Overtemperature on heatsink on slave 2
W116
1
Overtemperature on heatsink on slave 3
F117
2
AC current limit (short-circuit control active for too long)
W118
1
AC current limit (short-circuit control active for too long) on slave 1
W119
1
AC current limit (short-circuit control active for too long) on slave 2
W120
1
AC current limit (short-circuit control active for too long) on slave 3
F121
3
Inverter overvoltage
W122
1
Inverter overvoltage on slave 1
W123
1
Inverter overvoltage on slave 2
W124
1
Inverter overvoltage on slave 3
W137
1
Derating due to temperature (heatsink or transformer)
W138
1
Derating due to temperature (heatsink or transformer) on slave 1
W139
1
Derating due to temperature (heatsink or transformer) on slave 2
W140
1
Derating due to temperature (heatsink or transformer) on slave 3
F141
2
Inverter undervoltage
W142
1
Inverter undervoltage slave 1
W143
1
Inverter undervoltage slave 2
W144
1
Inverter undervoltage slave 3
F158
2
Voltage on output AC1
W159
1
Voltage on output AC1 slave 1
W160
1
Voltage on output AC1 slave 2
W161
1
Voltage on output AC1 slave 3
