11 Operating Data and Parameters
SMA Solar Technology AG
User ManualSCCPXT-E7-BA-en-58128
Name Description Value/range Explanation Default
value
Q-VRtgOfs-
Nom**
Nominal voltage VRtg
of the voltage-dependent
reactive power control
This parameter is only ac-
tive if the parameter
Q‑VArMod is set to
VArCtlCol.
−10% … +10% ‒ 0%
Q-VArGra-
Nom**
Reactive power gradient 0%/V to 40.06%/V SunnyCentral500CPXT 0%/V
0%/V to 31.47%/V SunnyCentral630CPXT
0%/V to 27.82%/V SunnyCentral720CPXT
0%/V to 26.35%/V SunnyCentral760CPXT
0%/V to 25.04%/V SunnyCentral800CPXT
0%/V to 23.56%/V SunnyCentral850CPXT
0%/V to 22.25%/V SunnyCentral900CPXT
0%/V to 22.25%/V SunnyCentral1000CPXT
Q-VolWid-
Nom**
Voltage range 0% … 20% ‒ 0%
Q-Vol-
NomP1**
Voltage at point1 80% … 120% ‒ 100%
Q-Vol-
NomP2**
Voltage at point2 80% … 120% ‒ 100%
Q-
VArTmsSpnt**
Time setting of the char-
acteristic curve point
0.2sto20s ‒ 10s
Q-
VArTmsVtg**
Connection delay of the
grid voltage
0.2sto20s ‒ 10s
Q-
EnaTmsVtg**
Activation of the connec-
tion delay of the grid
voltage
Off Deactivated Off
On Activated
WGra** Gradient of the active
power change for set-
point of active power lim-
itation
0.017%/s to 100%/
s
‒ Country-
specific
WGraEna** Activation of the active
power change gradient
Off Deactivated On
On Activated
WGraRecon** Gradient of active power
change for reconnection
0.017%/s to 100%/
s
‒ Country-
specific