SMA SC 500HE-20 - Manual (Page 52)

6 Setpoint for Active Power and Reactive Power SMA Solar Technology AG
52 SCxxxHE-20-BE-BEN111210 Operating Manual
6.2.11 "VArCtlVol" Procedure
Reactive power is set depending on the grid voltage. The reactive power target value is adjusted in
stages.
Figure 17: Curve for reducing reactive power depending on grid voltage
If the grid voltage and the parameterizable voltage difference "Q-VDif" change for the configurable
duration of "Q-VDifTm", the reactive power setpoint is adapted to the "Q-VArGra" value.
The parameterization of this function depends on the medium voltage.
Contact the SMA Service Line before changing any parameters
Contact the SMA Service Line before selecting or configuring the "VArCtlVol" procedure.
Used parameters Q-VDif
Q-VArGra
Q-VDifTm
Q-VRtgOfsNom