SMA Solar Technology AG 9 Troubleshooting
Operating Manual SI60H-80H-BE-en-20 47
F 141 InvVtgLo 2 The voltage at terminal AC1 of the
master is too low due to AC
sources in the system.
•
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 undervoltage
through measurement and
step-by-step connection of the AC
sources and loads.
W 142 InvVtgLoSlv1 1 The voltage at terminal AC1 of
slave 1 is too low due to AC
sources in the system.
W 143 InvVtgLoSlv2 1 The voltage at terminal AC1 of
slave 2 is too low due to AC
sources in the system.
F 158 VtgOnAC1Det 2 The master has measured an
undesired voltage at terminal
AC1.
A bypass switch may have bridged the
internal transfer relay.
• Ensure that the bypass switch is in
the position for operation with the
Sunny Island.
•
Ensure that the Sunny Island is
functional. For this, disconnect all
AC sources and loads from the
Sunny Island and restart the
Sunny Island.
A voltage source (e.g. generator) may
have been connected to the terminal
AC1.
•
Disconnect the voltage source
from terminal AC1 and connect to
terminal AC2 (see the Sunny
Island installation manual).
W 159 VtgOnAC1DetSlv1 1 Slave 1 has measured an
undesired voltage at terminal
AC1.
W 160 VtgOnAC1DetSlv2 1 Slave 2 has measured an
undesired voltage at terminal
AC1.
F 162 OvrCurDet 2 Too much current is flowing
through the DC terminal of the
master.
• Reduce the power of the loads.
W 163 OvrCurDetSlv1 1 Too much current is flowing
through the DC terminal of slave 1.
W 164 OvrCurDetSlv2 1 Too much current is flowing
through the DC terminal of slave 2.
F 166 Overload5min 3 The five minute overload capacity
of the master has been exceeded.
• Reduce the power of the loads.
W 167 Overload5minSlv1 1 The five minute overload capacity
of slave 1 has been exceeded.
W 168 Overload5minSlv2 1 The five minute overload capacity
of slave 2 has been exceeded.
No. Name Level Cause Corrective measures
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