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SMA Solar Technology AG
11 Troubleshooting
Installation Manual
STP5-9TL-IA-en-10
69
11.3 Error Messages
Event
number
Display message
Cause and corrective measures
101 … 103 Grid fault
The line voltage or grid impedance at the termination
point of the inverter is too high. The inverter has
disconnected from the electricity grid.
Corrective measures:
• Check that the line voltage at the termination
point of the inverter is permanently in the
permissible range.
If the line voltage is outside the permissible range
due to local grid conditions, contact the network
operator. Ask the network operator whether the
voltage can be adapted at the feed-in point or if
it would be acceptable to change the monitored
operating limits.
If the line voltage is permanently in the
permissible range and this message is still
displayed, contact the SMA Service Line.
202 … 203 Grid fault
The electricity grid has been disconnected, the
AC cable is damaged or the line voltage at the
termination point of the inverter is too low. The inverter
has disconnected from the electricity grid.
Corrective measures:
• Ensure that the miniature circuit-breaker is
switched on.
• Ensure that the AC cable is not damaged.
• Ensure that the AC cable is connected correctly.
• Check that the line voltage at the termination
point of the inverter is permanently in the
permissible range.
If the line voltage is outside the permissible range
due to local grid conditions, contact the network
operator. Ask the network operator whether the
voltage can be adapted at the feed-in point or if
it would be acceptable to change the monitored
operating limits.
If the line voltage is permanently in the
permissible range and this message is still
displayed, contact the SMA Service Line.