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
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