SMA 20000TL Service Manual - Manual (Page 13)

5.2 Error Messages
The communication product (e.g. Sunny Explorer) displays the warnings and errors that apply to
the inverter, the utility grid or the PV array. The warning or error is identified by an event number
and the corresponding message.
Event number Message, cause and corrective measures
101 … 103 Grid fault
The grid voltage or grid impedance at the connection point of the inverter is
too high. The inverter has disconnected from the utility grid.
Corrective measures:
• Check whether the grid voltage at the connection point of the inverter is
permanently in the permissible range.
If the grid voltage is outside the permissible range due to local grid
conditions, contact the grid operator. The grid operator must agree with
an adjustment of the voltage at the feed-in point or with a change of the
monitored operating limits.
If the grid voltage is permanently within the permissible range and this
message is still displayed, contact the SMA Service Line.
202 … 203 Grid fault
The utility grid has been disconnected, the AC cable is damaged or the grid
voltage at the connection point of the inverter is too low. The inverter has dis-
connected from the utility grid.
Corrective measures:
1. Make sure that the circuit breaker is switched on.
2. Make sure that the AC cable is not damaged.
3. Make sure that the AC cable is correctly connected.
4. Check whether the grid voltage at the connection point of the inverter is
permanently in the permissible range.
If the grid voltage is outside the permissible range due to local grid conditions,
contact the grid operator. The grid operator must agree with an adjustment of
the voltage at the feed-in point or with a change of the monitored operating
limits.
If the grid voltage is permanently within the permissible range and this
message is still displayed, contact the SMA Service Line.
5 Troubleshooting SMA Solar Technology AG
Service Manual for Installers 13 STP20-25TL-SG-en-11