SMA SB 3300-11 Installation - Manual (Page 54)

Troubleshooting SMA Solar Technology AG
54 SB33-38-11-IA-en-62 Installation Manual
Shutdown Temporary inverter disturbance.
Corrective measures
• Contact the SMA Service Line.
Trafo-Temp-F Temperatures in the transformer have exceeded the acceptable limit.
The inverter stops its feed-in operation until the temperature lies within the
permissible range.
Corrective measures
• If this disturbance occurs frequently, check the heat dissipation of
the inverter as described in section 8.2 "Checking the Heat
Dissipation" (page 45).
Trafo-Temp-W Temperatures in the transformer have exceeded the acceptable limit.
The inverter stops its feed-in operation until the temperature lies within the
permissible range. The "Trafo-Temp-W" disturbance is displayed until final
shutdown (at the end of the day).
Corrective measures
• Check the heat dissipation of the inverter as described in section
8.2 "Checking the Heat Dissipation" (page 45).
Vac-Bfr
Vac-Srr The line voltage is no longer within the permissible range
("Bfr" or "Srr" is an internal message of no relevance for the user).
This fault can be caused by any of the following conditions:
• Power distribution grid disconnected
(miniature circuit-breaker, fuse)
• AC cable is interrupted or
• AC cable is highly resistive.
The inverter disconnects itself from the power distribution grid for safety
reasons.
Corrective measures
• Check the line voltage and connection on the inverter.
• If the line voltage lies outside the permissible range because of
local grid conditions, ask the grid operator if the voltages can be
adjusted at the feed-in point or if they agree to changes in the
values of the monitored operating limits
(operating parameters: Vac-Min and Vac-Max).
• If the line voltage lies within the tolerance range, yet "Vac-Bfr" or
"Vac-Srr" faults are still displayed, contact the SMA Service Line.
Message Description and corrective measure