SMA Solar Technology AG Messages
Installation Guide STP10-17TL-IEN102611 79
11.2 Error Messages
When errors occur, a display message including the corresponding event number will appear in the
text line of the display. By tapping on the enclosure lid, multi-line messages can be switched further.
If the error exists over a long period of time, the red LED begins to glow and the multi-function relay
is activated.
In addition, depending on the severity of the fault the
"wrench" or "telephone receiver" symbol on the display
will light up.
• Wrench: signifies a failure which can be remedied
on site (see table below)
• Telephone receiver: signifies device failure
Contact the SMA Serviceline.
< Update file OK > The file found is valid.
Event no. Cause Corrective measures
1< Grid fault >
The grid voltage has exceeded the
permissible range. This error can have the
following causes:
• The grid voltage at the point of
connection of the inverter is too high.
• Grid impedance at the terminal of the
inverter is too high.
For safety reasons, the inverter disconnects
itself from the grid.
• Check the grid current and the grid
connection on the inverter.
If the grid voltage lies outside the
acceptable range because of local grid
conditions, ask the utility operator if the
voltage can be adjusted at the feed-in point
or if he agrees to changes in the values of
the monitored operational limits.
If the grid voltage lies within the tolerance
range, yet this error is still being displayed,
contact the SMA Serviceline.
2< Grid fault >
The grid voltage has fallen below the
permissible range. This error can have the
following causes:
• Grid disconnected
• AC cable damaged
• The grid voltage at the point of
connection of the inverter is too low.
For safety reasons, the inverter disconnects
itself from the grid.
• Check the triggering of the line circuit
breaker.
• Check the grid current and the grid
connection on the inverter.
If the grid voltage lies outside the
acceptable range because of local grid
conditions, ask the utility operator if the
voltage can be adjusted at the feed-in point
or if he agrees to changes in the values of
the monitored operational limits.
If the grid voltage lies within the tolerance
range, yet this error is still being displayed,
contact the SMA Serviceline.
Display Description
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