SMA SUNNY ISLAND 4.4M Operating Manual page 165

SMA Solar Technology AG
Event number Message, cause and corrective measures
9318 Emergency charge
9319 Status change to battery float charge
9320 Status change to battery boost charge
9321 Status change to battery full charge
9322 20 percent calibration being executed
In the event that the Sunny Island detects an unexpectedly sharp battery voltage drop during
electric discharge, resulting in a lower battery voltage for the given discharging current than
expected at a certain state of charge, a recalibration of the state of charge to 20% will be
performed. Frequent state of charge recalibrations to 20% may be caused by poor battery
maintenance, aged batteries, or installation errors (see technical information "Battery Man-
agement").
9324 Battery fault
Current battery capacity (SOH) is below 70%.
Corrective measures:
9325
Battery fault
A 20% recalibration of the battery state of charge has been performed with a jump of more
than 10%.
Corrective measures:
9326
Battery fault
Battery protection mode is active.
Corrective measures:
9331
Battery fault
Battery voltage in the Sunny Island at L1 / L2 / L3 is above the permissible measurement
range.
Corrective measures:
Operating Manual
• Verify the plausibility of the error message.
• Replace the battery if necessary.
• Check the battery.
• Disconnect the loads, start the generator, start the Sunny Island and charge the battery.
• Check whether the value set for the parameter Battery voltage is above 65.0 V. If the
value is above 65.0 V, check the settings of the DC sources and ensure that the battery
capacity is sufficient. Observe the technical data for the battery at the DC connection.
• Ensure that the DC sources are correctly connected and configured.
• For off-grid systems: ensure that all SMA inverters are configured to the country data set
for stand-alone mode.
15 Troubleshooting
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