SMA Solar Technology AG 12 Troubleshooting
Installation Manual SB30-50TL-21-IA-en-21 77
801 Waiting for grid
voltage
There is no mains voltage at the AC output of the inverter.
Corrective measures:
• Check the fuse and replace it if necessary.
• Check AC installation.
• Check whether there is a general power failure.
Grid failure
Check fuse
901 PE conn. missing The PE connection is missing. Half of the mains voltage may be
present on an unearthed enclosure. The inverter will not connect
to the electricity grid.
Corrective measures:
• Check AC installation.
• (see Section6.3.2 "Connecting the Inverter to the
Electricity Mains (AC)", page36)
Check connection
1001 L / N swapped L and N have been connected the wrong way round. The
inverter will not connect to the electricity grid.
Corrective measures:
• Eliminate connection error (see Section6.3.2
"Connecting the Inverter to the Electricity Mains (AC)",
page36).
Check connection
1101 Installation fault A second phase is connected to N.
Corrective measures:
• Correct the connection (see Section6.3.2 "Connecting
the Inverter to the Electricity Mains (AC)", page36).
Check connection
3301 to
3303
Unstable
operation
There is not enough power at the DC input of the inverter for
stable operation. This may be caused by snow on the PV
modules or insufficient sunlight. The inverter interrupts feed-in
operation.
Corrective measures:
• Wait until irradiation is higher.
• If this event recurs at medium irradiation levels, check the
PV plant design and the correct circuitry of the PV array.
Event no. Message Cause and corrective measures
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