Set Reactive And Active Power Characteristic Curves; Setting The Q(V) Characteristic Curve - SMA SUNNY TRIPOWER 5.0 SMART ENERGY Operating Manual

9 Operation
4. Select [Save and continue] after each step up until the step Grid management service.
5. Make the settings as described in the following.
Make the settings for systems with external setpoint
1. In the tab Active power mode set the switch Active power setpoint to [On].
2. In the drop-down list Operating mode active power setpoint, select the entry External
setpoint.
3. In the drop-down list Fallback behavior, select the entry Apply fallback values.
4. In the field Fallback value of the maximum active power enter the value to which the
inverter is to limit its nominal power in case of a communication failure to the higher control
unit at the end of the timeout time.
5. In the field Timeout, enter the time that the inverter is to wait before it limits its nominal power
to the set fallback value.
6. If, in the event of a 0% or 0 W specification, the inverter is not permitted to feed small amounts
of active power into the utility grid, select the entry Yes in the drop-down list Grid
disconnection for 0% active power setpoint. This ensures that in the event of a 0% or 0 W
specification, the inverter disconnects from the utility grid and does not feed in active power.
Make the settings for systems with manual setpoint
1. In the tab Active power mode set the switch Grid connection point regulation to [On].
2. Enter the total power of the PV array in the field Nominal system power.
3. In the drop-down list Operating mode active power setting, select whether active power
limitation is to be performed via a fixed specification in percent or in watts.
4. In the field Set active power limit, enter the value to which the active power at the point of
interconnection is to be limited. The value must be set to 0 for zero active power.
5. Set the Active power setpoint to [On].
6. Select the entry Manual setpoint in % or Manual setpoint in W for manual specification
and enter the respective setpoint value.
7. If the inverter itself is to control active power at the point of interconnection, perform the
following steps:
• In the drop-down list Operating mode active power setting, select the entry External
setting.
• In the drop-down list Fallback behavior, select the entry Apply fallback values.
• In the drop-down list Grid disconnection for active power setpoint of 0% select the
entry No.

9.12 Set reactive and active power characteristic curves

9.12.1 Setting the Q(V) characteristic curve

The characteristic curve is preset according to country data set. You can make adjustments via
parameter settings. Coordinate the configuration with your grid operator.
The basic procedure for changing operating parameters is explained in another section (see
Section 9.9, page 76).
78 STPx0-3SE-40-BE-en-10
SMA Solar Technology AG
Operating Manual