SMA SUNNY BOY - Manual (Page 28)

Measurement Channels and Messages SMA Solar Technology AG
28 SB_SMC-BEN092840 User Manual
6 Measurement Channels and Messages
If your inverter is equipped with a communication component, then numerous measurement channels
and messages to aid diagnosis can be transmitted.
The following abbreviations apply:
BFR: Operation control unit
SRR: Current control unit
6.1 Measuring Channels
Measuring
channel Description
Balancer Displays the currently active operating mode of the Sunny Mini Central, which
has been set via the operating parameter "PowerBalancer".
Earthfault / Riso Insulation resistance of the PV system before grid connection
E-total
Total amount of energy fed into the grid
Error Identification of the current disturbance / error.
Error-Cnt Number of errors which have occurred since the last reset
Event-Cnt Number of events which have occurred
Fac Grid frequency
Fault current Differential current of the PV system (inverter and PV generator)
h-On Total number of operating hours
h-total Total number of grid-feeding operational hours
Iac Grid current (active current)
Ipv DC current
Is Apparent current (applies only to inverters with Reactive Power Control)
Mode Display of the current operating mode
Power On Total number of grid connections
Pac Generated AC power
Phase The phase to which the inverter is connected. The phase (L1 - L3) is set via the
operating parameter "Grid connection".
PF Displacement factor cos ϕ (applies only to inverters with Reactive Power
Control)
Qac Reactive power (applies only to inverters with Reactive Power Control)
Sac Apparent power (applies only to inverters with Reactive Power Control)
Serial Number Serial number of inverter
Vac Grid voltage
Vfan,
V-Fan Fan supply voltage (only in inverters equipped with an active cooling system)