SMA Solar Technology AG
Information on the Display
User Manual
SB_SMC_Schueco-BEN093730
25
4.2 Display Messages During Operation
The display shows the most important operating data of the inverter in an alternating cycle. The
following diagrams serve to clarify the messages. Each message is displayed for 5 seconds. Then
the cycle starts over again.
• First of all, the energy generated that day and the
current operating mode are displayed.
• Next, the current feed-in power and the voltage of
the PV generator (except in the case of
SB 3300TLHC) appear.
• In the case of the Sunny Boy 3300TL HC, the
momentary feed-in power and the output voltage
are displayed.
• The next reading on the display of the Sunny Boy
3300TL HC gives the current input voltage and
input power.
• In the case of the Sunny Mini Central with Reactive
Power Control, after a further 5 seconds or
following another tap, the current reactive power
value Q
AC
and the displacement factor cos ϕ (PF)
are displayed.
• This is followed by the total energy produced so far
and the hours the device has been in operation.
4.2.1 Display Messages when Fault Warnings Occur
If a fault warning occurs, the display immediately switches to "Warning" and the background
illumination lights up. When warnings occur, the inverter continues feeding into the grid. The
following illustrations give three examples of possible fault warning scenarios.
• This warning appears after the inverter has been in
"Derating" mode for 10 minutes.
• This warning means that one of the varistors is
defective.
• If this warning appears, it means that one of the
string fuses is defective.
Pac 903W
Vac 230V
Vpv 520V
Ppv 1325W
Q
AC
positive = overexcited
Q
AC
negative = underexcited
Warning
Derating
Warning
Check Varistor
Warning
DC fuse
