SMA SB 6000TL‑US - Manual (Page 29)

SMA America, LLC 5 Troubleshooting
User Manual SB6-11TLUS-BA-eng-BUS121211 29
Error AFCI The inverter has detected an electric arc in the PV system.
The inverter disconnects from the power distribution grid. As soon as the
error is remedied , the inverter performs an AFCI test. If the AFCI test is
unsuccessful, the inverter keeps restarting the AFCI test until it has been
carried out successfully.
Corrective measures:
• Restart the inverter (see section 5.3.3 "Resetting "Error
AFCI"", page 34).
• If the message occurs frequently, contact the installer.
Fac-Bfr
Fac-Srr The AC power frequency has exceeded the permissible range. The inverter
disconnects from the power distribution grid to prevent islanding.
Corrective measures:
• Contact installer.
HW Signal The inverter has detected an internal measuring disturbance or the
hardware is defective.
The inverter disconnects 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 trips the permanent
operation inhibition.
Corrective measures:
• Contact installer.
Iac-DC_Offs-Srr The inverter has detected a system incident.
The inverter disconnects 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 trips the permanent
operation inhibition.
Corrective measures:
• Contact installer.
Message Cause and corrective measures