SMA SMC 4600A Installation - Manual (Page 62)

Troubleshooting SMA Solar Technology AG
62 SMC46-60A11-IA-en-81 Installation Manual
Trafo-Temp-W If the transformer temperature has risen above the acceptable level, the
inverter stops feeding in until the temperature has reverted to an
acceptable level and the feed-in operation can be resumed. The
"Trafo-Temp-W" warning is displayed until the device is completely
disconnected.
Corrective measures
• Check the heat dissipation of the inverter.
Shutdown Temporary inverter disturbance.
Corrective measures
• Contact SMA Service Line.
Vac-Bfr
Vac-Srr The mains voltage is no longer within the permissible range ("Bfr" or "Srr"
is an internal message of no relevance for the user). This disturbance can
be caused by any of the following conditions:
• electricity grid disconnected (miniature circuit-breaker, fuse),
• AC cable is interrupted or
• AC cable is highly resistive.
The inverter disconnects from the electricity grid for safety reasons.
Corrective measures
• Check the mains voltage and grid connection on the inverter.
• If the mains voltage lies outside the acceptable range because of
local grid conditions, ask the network 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 mains 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