SMA SUNNY BOY 3000-US Installation Manual page 75

SMA America, LLC
Message
Fac-Bfr, Fac-Srr
GFDI Fuse Open
Grid-Timeout,
Grid-Fault-S
Imax
K1-Close
K1-Open, K2-Open
MSD-FAC, MSD-Idif
MSD-VAC
OFFSET
Installation Manual
Cause and corrective measures
The AC power frequency exceeds the permissible range. To prevent
islanding, the inverter disconnects from the power distribution grid.
Corrective measures:
• Ensure that the AC cable is correctly connected (see Section 6.3).
• Ensure that the power frequency is within the permissible range.
• If the power frequency is within the permissible range and this
message continues to be displayed, contact SMA Service Line (see
Section 15).
The ground fuse has tripped.
Corrective measures:
• Check the PV plant for ground-faults (see Section 11.6).
• Replace the ground fuse (see Section 11.7).
The grounding system of the power distribution grid could not be detected.
Corrective measures:
• Contact the SMA Service Line (see Section 15).
Overcurrent detected on AC side.
The current to the power distribution grid exceeds the specifications. This
may be caused by a serious system incident.
Corrective measures:
• Ensure that the PV plant is correctly rated.
• Ensure that the grid conditions are maintained.
An internal test has failed.
Corrective measures:
• Contact the SMA Service Line (see Section 15).
An internal measurement comparison fault has been detected.
The measured values of both processes (OCU and current controlling unit)
deviate too much from one another.
Corrective measures:
• Contact the SMA Service Line (see Section 15).
Grid monitoring self-test failed.
Corrective measures:
• If the message occurs frequently, contact the SMA Service Line
(see Section 15).
10 Troubleshooting
SB30-40-US-IA-en-33 75