SMA SC 400HE - Manual (Page 49)

SMA Solar Technology AG 4 Sunny Central Control
Operating Manual SC4-63HE-BE-BEN103280 49
Procedure for Regulating Reactive Power and Setting Associated Parameters
1. Enter password (see section 4.2.2 "Entering the Password", page 32).
2. Device Set-up > Parameters > Red.effect.pow. Select > P-WMod.
☑ Line below "P-WMod" flashes.
3. Select the required procedure for limiting the active power.
4. Press [ENTER] twice.
☑ The required procedure for limiting the active power is set.
5. If necessary, select the parameter pertaining to the procedure with the [ ↓ ] key and press
[ENTER].
6. Set the parameter.
7. Press [ENTER] twice.
4.8.2 "Off" Procedure
The reactive power target value is limited to 0 kVAr. This target value cannot be influenced.
4.8.3 "VArCtlCom" Procedure
The reactive power target value is received by the Sunny Central Control through the Power Reducer
Box and forwarded to the Sunny Central. The target value is detected as a percentage and converted
to kVAr inside the device.
If the Sunny Central has received no signal for 5 minutes, the "P-ModFailStt" error message will be
displayed.
4.8.4 "PFCtlCom" Procedure
The reactive power target value is received by the Sunny Central Control through the Power Reducer Box
and forwarded to the Sunny Central. A power factor is transmitted as a predefined target value.
If the Sunny Central has received no signal for 5 minutes, the "P-ModFailStt" error message will be
displayed.
Used parameters none
Used parameters none
Used parameters none