SMA POWER PLANT CONTROLLER - Manual (Page 37)

SMA Solar Technology AG 7 Operation
Operating Manual PPC-BE-P7-en-13 37
7.10 Local Specification of Setpoints
Control of the system by the Power Plant Controller is normally executed remotely via Modbus commands.
In addition, it is possible for the grid operator to specify fixed setpoints so that remote control of the system is not
necessary. In this case, the system control must be adjusted to Local.
If errors occur during transmission of grid management specifications via Modbus protocol, for diagnostic purposes the
system can be controlled directly from the user interface. To enable settings to be made via the user interface, the system
control needs to be adjusted to Local. After completion of the diagnostic work, reset system control to Remote.
Procedure:
1. Log into the user interface as an installer (see Section 11.3.1, page 54).
2. Go to PPC > Grid system services > Setpoint specification.
3. In the drop-down list System control, select the entry Local.
4. Enter the required values in the fields Active power, Reactive power, Voltage, Power factor and TanPhi.
7.11 Saving and Restoring Settings of the Power Plant Controller
Backing Up Settings
All settings of the Power Plant Controller can be backed up automatically and manually.
Procedure:
1. Log into the user interface (see Section 11.3.1, page 54).
2. Go to PPC > Backup and restore.
3. To export the settings to a USB memory stick, proceed as follows:
• Select the required USB port in the field Port.
• Select the button [Backup] in the field Ini files.
4. To save separate settings in an internal file on the Power Plant Controller, click the button [Export] of the respective
group.
5. To save all settings in an internal file on the Power Plant Controller, click the button [Export] of the group All.
Settings backup Description
Automatic
All Power Plant Controller settings are saved daily at midnight to the SD memory card in the
Power Plant Controller. This data is always saved alternately in the files AutoSave 1 and
AutoSave 2. This means that, in the event of an error, the records from two different days can be
retrieved. You can recognize which of the two files is the more recent by the date on the user
interface.
Manual It is possible to save all settings to a USB memory stick in one folder
PPC_Backup_xxxxxxxx(serial number). The folder name includes the serial number of the
Power Plant Controller. The Power Plant Controller automatically creates this folder. During
backup, the automatically saved files AutoSave 1 and AutoSave 2 are also transferred to the
USB memory stick.
In addition, all settings, or the settings of all inverters, Cluster Controllers, controllers and IP
addresses, can be saved separately in an internal file of the Power Plant Controller.