SMA WB 3000-21 Installation - Manual (Page 60)

11 Troubleshooting SMA Solar Technology AG
60 WB3-5TL-21-IA-en-10 Installation Manual
11.2.2 Error Messages
Inst. code valid The SMA Grid Guard code entered is valid. Protected parameters have
now been unblocked and you can adjust the parameters.
The parameters are automatically locked again after ten feed-in hours.
Self-test The self-test is being carried out.
Event
number Display message Cause and corrective measures
101 to
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 power distribution 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 grid
operator. Ask the grid 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.
Display message Cause