SMA SUNNY ISLAND 3.0M Operating Manual page 53

SMA Solar Technology AG
No. Name
F 117 AcCurLim
W 118 AcCurLimSlv1
W 119 AcCurLimSlv2
F 121 InvVtgHi
W 122 InvVtgHiSlv1
W 123 InvVtgHiSlv2
F 129 InvFrqHi
W 130 InvFrqHiSlv1
W 131 InvFrqHiSlv2
Operating Manual
Level Cause
2 AC current limitation Line
conductor L1: The power of
the loads is too high for the mas-
ter.
1 AC current limitation Line
conductor L2: The power of
the loads is too high for slave 1.
1 AC current limitation Line
conductor L3: The power of
the loads is too high for slave 2.
3 Inverter overvoltage Line
conductor L1: An overvoltage
has occurred at connection
AC1 of the master.
1 Inverter overvoltage Line
conductor L2: An overvoltage
has occurred at connection
AC1 of slave 1.
1
Inverter overvoltage Line
conductor L3: An overvoltage
has occurred at connection
AC1 of slave 2.
3
Inverter overfrequency Line
conductor L1: An overfre-
quency has occurred at connec-
tion AC1 of the master.
1 Inverter overfrequency Line
conductor L2: An overfre-
quency has occurred at connec-
tion AC1 of slave 1.
1 Inverter overfrequency Line
conductor L3: An overfre-
quency has occurred at connec-
tion AC1 of slave 2.
10 Troubleshooting
Corrective measures
• Ensure that the Sunny Island is
functional. For this, clean the fans
and restart the Sunny Island (see
Section 11.7, page 95).
• Ensure that there are no short
circuits in the system and that the
power of the loads is not greater
than the power of the Sunny Island
inverter.
• Use a star delta electronic circuit to
start three-phase loads with a high
start-up electricity demand (e.g.,
engines).
• Connect the loads with very high
power directly to the generator
whenever possible. Ensure that the
generator is not overloaded.
• Ensure that the Sunny Island is
functional. For this, disconnect all
AC sources and loads from the
Sunny Island and restart the
Sunny Island.
• Find the cause of the overvoltage
through measurement and step-by-
step connection of the AC sources
and loads.
• Ensure that the Sunny Island is
functional. For this, disconnect all
AC sources and loads from the
Sunny Island and restart the
Sunny Island.
• Find the cause of the overfrequency
through measurement and step-by-
step connection of the AC sources
and loads.
SI30M-44M-60H-80H-BE-en-33 53