SMA SUNNY ISLAND 4.4M Operating Manual page 160

14 Troubleshooting
Event number Message, cause and corrective measures
9002 SMA Grid Guard code invalid
The SMA Grid Guard code entered is incorrect. The operating parameters are still protected
and cannot be changed.
Corrective measures:
9003
Grid parameters locked
Changes to the grid-relevant parameters are now blocked. In order to be able to make
changes to the grid parameters, from now on you must log in using the SMA Grid Guard
code.
29004 Grid parameter unchanged
9301 Reset battery management due to new battery
9308
Battery error
The timeout monitoring system of the battery management has triggered
Corrective measures:
9313
Battery error
The lower limit of the temperature range approved by the battery manufacturer has been un-
dercut.
Corrective measures:
9314 Battery error
The upper limit of the temperature range approved by the battery manufacturer has been ex-
ceeded.
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").
160 SI44M-80H-13-BE-en-15
• Enter the correct SMA Grid Guard code.
• Ensure that the data cable of the external lithium-ion battery is connected correctly.
• Ensure that the terminators of the CAN bus in the communication bus are attached.
• Ensure that the ambient conditions of the battery manufacturer are complied with.
• Ensure that the ambient conditions of the battery manufacturer are complied with.
SMA Solar Technology AG
Operating manual