SMA SC 500HE-20 - Manual (Page 53)

SMA Solar Technology AG 6 Setpoint for Active Power and Reactive Power
Operating Manual SCxxxHE-20-BE-BEN111210 53
6.2.12 "VArCtlVolHystTb" Procedure
By supplying reactive power, the inverter helps perform voltage-stabilizing measures in case of
overvoltage or undervoltage The parameters are configured using a reactive power/voltage
characteristic curve. The curve can be configured flexibly by parameterizing the slope, a sort of
"deadband" through 2 voltage points and a hysteresis.
Figure 18: Curve for reducing reactive power without deadband and without hysteresis
Contact the SMA Service Line before changing any parameters
Contact the SMA Service Line before selecting or parameterizing the "VArCtlVolHystTb"
procedure.