Troubleshooting; Sunny Island Inverter Behavior Under Fault Conditions; Event Messages - SMA SUNNY ISLAND 4.4M Operating Manual

SMA Solar Technology AG

15 Troubleshooting

15.1 Sunny Island Inverter Behavior Under Fault Conditions

Event messages

Warnings and errors are displayed in the menu Events in the user interface until the causes of these warnings and
errors are no longer detected by the Sunny Island. Exception: Some errors must be acknowledged via the user
interface.
Information is also displayed in the menu Events by the Sunny Island (see Section 15.2, page 145).
Autostart
The autostart function allows automatic restarts in the event of malfunctions. If the autostart function fails in the event of
a malfunction, the Sunny Island attempts to carry out the next autostart immediately. The number of autostarts is
restricted.
When the maximum number of autostarts has been reached, the Sunny Island reacts as follows:
• The Sunny Island waits ten minutes.
• The autostart counter is reset.
• The Sunny Island attempts to perform an autostart.
• When the maximum number of autostarts has been reached, the Sunny Island waits again for ten minutes.
15.2 Event Messages
Event number Message, cause and corrective measures
104 to 204
Grid fault
The voltage of the generator or the utility grid at the Sunny Island is too high.
Corrective measures for a generator:
Corrective measures in a battery-backup system:
301
Voltage increase protection
Voltage increase protection line conductor Lxx
Corrective measures:
Operating Manual
• Adjust the thresholds for the generator voltage on the Sunny Island (see Sunny Island
technical information "Measured Values and Parameters"). As an aid to this, observe
and evaluate the measured values Voltage external power connection phase Lxx
during ongoing operation.
Adjust the generator voltage and/or generator frequency.
• Contact the Service (see Section 19, page 189).
• Ensure that the conductor cross-section of the AC cables is correctly sized.
15 Troubleshooting
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