SMA SUNNY BOY 3000-US, Руководство пользователя

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5 Troubleshooting SMA America, LLC
26 SB30-40-BA-eng-BUS121010 User Manual
5.3.2 Error Messages
In the event of an error, the relevant messages are shown on the display and the backlight is activated.
Each error message is displayed for 5 seconds. After 5 seconds, the display scrolls through the regular
operation messages. The error message will be displayed in the display sequence until the fault is
rectified.
Message Cause and corrective measures
Bfr-Srr Communication between micro-controllers is interrupted.
The inverter disconnects itself from the power distribution grid. As soon as
the error has been remedied, the inverter tries to feed into the power
distribution grid again. If the inverter cannot feed into the power
distribution grid after several attempts, the inverter triggers the permanent
inhibition of operation.
Corrective measures:
• Contact installer.
Derating The inverter reduces the output power due to high internal temperatures.
Corrective measures:
• Ensure that the inverter has sufficient ventilation.
• Ensure that air is emerging from the fan enclosure. If no air is
emerging from the fan enclosure, clean the fan enclosure (see
section 6.4).
Error AFCI The inverter has detected an electric arc in the PV system.
Corrective measures:
• Restart the inverter
(see section 5.3.3 "Resetting "Error AFCI"", page 30).
• If the message occurs frequently, contact the installer.
EarthCurMax-B
EarthCurMax-S The ground fault monitoring (GFDI) has detected an elevated residual
current in the PV plant.
Corrective measures:
• Contact installer.
EEPROM Temporary disturbance during reading or writing of data from the
EEPROM.
This data is not essential for safe operation. This message is for information
purposes and has no effect on the performance of the inverter.