SMA SUNNY ISLAND 3.0M Operating Manual page 64

10 Troubleshooting
No. Name
W 347 ExtOverload
W 348 ExtOverloadSlv1
W 349 ExtOverloadSlv2
W 351 ExtScirDet
W 352 ExtScirDetSlv1
W 353 ExtScirDetSlv2
W 355 PhsAngErr
64 SI30M-44M-60H-80H-BE-en-33
Level Cause
1 Disconnection from the ex-
ternal grid due to line con-
ductor failure or overload at
line conductor 1: The master
disconnects from the utility grid
due to line conductor failure/
overload at connection AC2.
1
Disconnection from the ex-
ternal grid due to line con-
ductor failure or overload at
line conductor 2: Slave 1 dis-
connects from the utility grid due
to line conductor failure/over-
load at connection AC2.
1 Disconnection from the ex-
ternal grid due to line con-
ductor failure or overload at
line conductor 3: Slave 2 dis-
connects from the utility grid due
to line conductor failure/over-
load at connection AC2.
1
Disconnection from the ex-
ternal grid due to external
short circuit at line conduc-
tor L1: Short circuit is present at
connection AC2 of the master.
1 Disconnection from the ex-
ternal grid due to external
short circuit at line conduc-
tor L2: Short circuit is present at
connection AC2 of slave 1.
1
Disconnection from the ex-
ternal grid due to external
short circuit at line conduc-
tor L3: Short circuit is present at
connection AC2 of slave 2.
1 External grid does not have
a correct rotating magnetic
field: Assignment of the line
conductors of the external en-
ergy source to the AC2 connec-
tions of the Sunny Island does
not result in a right-rotating mag-
netic field.
SMA Solar Technology AG
Corrective measures
• Reduce the total power of the
loads, e.g. by staggering their use
over time.
• Ensure that there is not a short
circuit present at connection AC2.
• Eliminate the short circuit.
• Ensure that the master is connected
to L1, slave 1 to L2, and slave 2 to
L3.
Operating Manual