SMA SB 2500TL-21 Installation - Manual (Page 69)

SMA Solar Technology AG Troubleshooting
Installation Manual SB25-30TLST-21-IA-en-13 69
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.
• Connect the PE cable to the AC terminal
(see Section 6.3.2 "Connecting the Inverter to the
Electricity Mains (AC)" (page 32)).
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:
• Correct the connection (see Section 6.3.2 "Connecting the
Inverter to the Electricity Mains (AC)" (page 32)).
Check connection
1101 Installation fault A second phase is connected to N.
Corrective measures:
• Correct the connection, (see Section 6.3.2 "Connecting
the Inverter to the Electricity Mains (AC)" (page 32)).
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, check the PV
plant design and make sure the PV array is wired properly.
Event no. Message Cause and corrective measures