Event number
Display message, cause and corrective measures
3301 to 3303
Unstable operation
The ten-minute average value of the grid voltage is no longer within the per-
missible range. The grid voltage or grid impedance at the connection point is
too high. The inverter disconnects from the utility grid to maintain power qual-
ity.
Corrective measures:
• Check whether the grid voltage at the connection point of the inverter is
permanently in the permissible range.
If the grid voltage is outside the permissible range due to local grid
conditions, contact the grid operator. The grid operator must agree with
an adjustment of the voltage at the feed-in point or with a change of the
monitored operating limits.
If the grid voltage is permanently within the permissible range and this
message is still displayed, contact the Service (see Section 11, page 30
).
3304
Gen. output too low
The DC output of the PV array is too low. The inverter cannot connect to the
utility grid.
Corrective measures:
• Wait for higher irradiation.
• If this message is displayed frequently with medium irradiation, ensure
that the PV system is correctly rated and the PV array correctly wired.
3401 to 3402
DC overvoltage > Disconnect generator
Overvoltage at the DC input. This can destroy the inverter.
This message is additionally highlighted by rapid flashing of the backlight.
Corrective measures:
• Immediately disconnect the inverter from all voltage sources (see
• Check whether the DC voltage is below the maximum input voltage of
the inverter. If the DC voltage is below the maximum input voltage of the
inverter, reconnect the DC connectors to the inverter.
• If the DC voltage is above the maximum input voltage of the inverter,
ensure that the PV array has been correctly rated or contact the installer
of the PV array.
• If this message is repeated frequently, contact the Service (see
4 Troubleshooting
SMA Solar Technology AG
Service Manual
SB30-60TL-21-SG-en-11
14
Summary of Contents for SUNNY BOY 3000TL Single Tracker
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