Electrical Connection SMA Solar Technology AG
48 SMC9-11TLRP-IEN100640 Installation Guide
5.7 Communication
The inverter is equipped with a slot for communication interfaces in order to communicate with special
data acquisition devices (e.g. Sunny WebBox) or a PC with corresponding software (e.g. Sunny Data
Control or Sunny Explorer).
See the respective communication interface manual for a detailed wiring diagram and an installation
description for the interface.
Using the Power Reducer Box from SMA Solar Technology AG, it is possible to set a limit for the active
power for all inverters. Also, the reactive power specification can be controlled in Sunny Mini Central
units with Reactive Power Control. For detailed information on the Power Reducer Box, see its
technical description and the technical information on "Grid safety management" in the download
area under www.SMA.de/en.
5.8 Setting the Grid and Country Parameters
A detailed description of the operating parameter for the inverter is available in the download area
at www.SMA.de/en in the category "Technical Description" of the respective inverter.
5.8.1 Setting the Installation Country
Using the "Default" parameter you can set the installation country and/or the grid connection
standard valid for the country via a communication device (e.g. Sunny WebBox) or a PC with
appropriate software (e.g. Sunny Data Control or Sunny Explorer). This, however, is only required if
the inverter was originally ordered for another country. You can see the standard to which the inverter
was set upon delivery from the type label and the supplementary document provided with the factory
settings.
Changing Grid-Relevant and Country Parameters
To change grid-relevant parameters, you need a personal access code - the so-called SMA
Grid Guard Code. The application form for the personal access code is located in the
download area at www.SMA.de/en, in the "Data sheet" category for each inverter.
Ensure that you discuss the changes to these parameters with your utility operator.
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