5 Troubleshooting
SMA America, LLC
24
SB30-40-BA-eng-BUS121010
User Manual
5.2 Measurement Channels
The measured values of the inverter are shown on the display in the measurement channels. In
addition, you can read out a variety of measurement channels and messages from the inverter using
special communication devices (e.g. Sunny WebBox) or a PC with the relevant software (e.g. Sunny
Explorer).
Measurement channel
Explanation
CO2 saved
Amount of CO
2
saved during the operating time
E-Total
Total energy yield
Error
Description of error
Event-Cnt
Number of events
Fac
Power frequency
Grid Type
Type of power distribution grid to which the inverter is connected
h-on
Total operating hours
h-Total
Total number of operating hours in feed-in operation
I-dif
Residual current
Iac
Line current
Ipv
DC input current
Max Temperature
Maximum temperature measured at IGBT module
Max Vpv
Maximum DC input voltage
Mode
Current operating mode
Pac
Power fed into the power distribution grid
Power On
Total system start-up counter
Serial Number
Inverter serial number
Temperature
Temperature measured at IGBT module
Vac
Line voltage L1 - L2
Vac L1
Line voltage L1 - N
Vac L2
Line voltage L2 - N
Vpv
DC input voltage
Vpv-PE
Direct voltage to ground (for troubleshooting PV ground faults)
Vpv Setpoint
MPP tracking DC target voltage
