Measuring channels and messages -18, Measuring channels -18, Measuring channels and messages – SMA SB 700U User Manual
Page 66: Measuring channels
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SMA America
SB700U-11:SE3207
Measuring Channels and Messages
The communication options support a number of measuring channels and messages
from the Sunny Boy inverters.
The following abbreviations are used:
BFR Betriebsführungsrechner (Sequential Control System)
SRR Stromregelungsrechner (Current Control System)
Measuring Channels
Vpv:
PV input voltage
Vpv Setpoint:
desired input voltage of the Vpv-control
Iac:
current to the grid
Vac:
grid voltage
Fac:
grid frequency
Pac:
power fed to grid
Vpv-PE:
PV-voltage to earth (for troubleshooting PV ground faults)
Temperature:
Temperature measured at IGBT module
Ipv:
current from PV-panels
Max. Temperature: Max. temperature measured at IGBT module
Max. Vpv:
Max. PV input voltage
I-dif:
Error current
E-Total (E-total):
total energy yield
h-Total (h-total):
total operation hours
h-on:
h-on indicates how long sufficient DC voltage has been applied
to the Sunny Boy and the Sunny Boy has been active including
the time it was not able to feed to the utility with respect to too
low voltage or operation in stop mode.
Power On:
total system start ups
Event-Cnt:
Event counter