SMA SC 500HE-US - Manual (Page 47)

SMA America, LLC 8 Reactive Power Regulation
Operating Manual SC500HEUS-eng-BE-BUS120320 47
8.1.12 "VArCtlVolHystDb" Procedure
By supplying reactive power, the inverter helps perform voltage-stabilizing measures in the event of
overvoltage or undervoltage. The parameters are configured using a reactive power/voltage
characteristic curve. The characteristic curve can be flexibly configured by parameterizing the slope,
a type of deadband through 2 voltage points, and a hysteresis.
Figure 15: Characteristic curve for reducing reactive power without deadband and without hysteresis
Contact the SMA Service Line before changing any parameters
The procedure "VArCtlVolHystDb" may only be selected and configured after consultation with
the SMA Service Line.