1 setting active power limitation, 2 setting the reactive power setpoint, Setting active power limitation – SMA POWER REDUCER BOX User Manual
Page 42: Setting the reactive power setpoint
8 Commissioning
SMA Solar Technology AG
42
REDUCERBOX-BA-en-16
User Manual
8.3.1 Setting Active Power Limitation
1. Log in as "Installer".
2. Select "Status configuration" in the context menu.
3. Search for the row with the status to be configured in the "Status of the digital input ports" column.
4. Put a tick in the "active" column next to the status to be configured.
☑ The status is active. Upon saving, it will be evaluated by the Power Reducer Box.
5. In the "Operating mode" column, select the "Effective power control" value of the status to be
configured.
6. In the "Active power in %" column of the status to be configured, enter the active power for the
line conductors L1, L2 and L3 in percent.
Different line conductors are only interpreted by inverters with multiple line conductors. In the
case of single-phase inverters, enter the same value for all line conductors.
7. Configure additional statuses in the same way.
8. Adopt the general settings of the system statuses (see Section 8.3.5 "Setting General System
9. Select [Save].
☑ The active power limitation is set.
8.3.2 Setting the Reactive Power Setpoint
1. Log in as "Installer".
2. Select "Status configuration" in the context menu.
3. Search for the row with the status to be configured in the "Status of the digital input ports" column.
4. Put a tick in the "active" column next to the status to be configured.
☑ The status is active and will be evaluated by the Power Reducer Box upon saving.
5. In the "Operating mode" column, select the "Reactive setpoint value" of the status to be
configured.
6. In the "Reactive power in %" column of the status to be configured, enter the reactive power for
the line conductors L1, L2 and L3 in percent.
Different line conductors are only interpreted by inverters with multiple line conductors. In the
case of single-phase inverters, enter the same value for all line conductors.
7. Configure additional statuses in the same way.
Active power limitation to 0%
At an active power limitation of 0%, the feed-in power of some string inverters cannot be
decreased to 0 watts. Depending on the inverter type used and the inverter parameters set,
the inverters may continue to feed in a low residual power.