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SMA Technologie AG The Communication Interface

Installation Guide SB25_30-11:SE0307 Page 59

11 The Communication Interface

The communication interface is used to communicate with SMA communication devices

(e.g. Sunny Boy Control, Sunny WebBox) or a PC with appropriate software (e.g.

Sunny Data Control). Depending on the selected communication interface, up to 2500

inverters can be interconnected. Detailed information on this topic can be found in the

communication device manual, or on the Internet at www.SMA.de.

The detailed wiring diagram for each communication interface can be found in the

communication device manual. This wiring diagram includes:

• Details on the required cable type

• Which of the inverter's connections are used

• Whether jumpers need to be mounted, and if so, which jumpers

• Whether the PE needs to be connected to the cable shield

The next pages will describe the following:

• The housing feed-throughs for the communication interface

• The permitted cable route inside the Sunny Boy

• The location of the PE connector

• The location of the screw terminals for connecting the communication wires

• The location of the jumper slots

• The location of the interface port

Warning!

Installation or replacement of the communication interface is only to be

carried out by a qualified electrician.

The communication interface connections are designed for safe disconnection in

accordance with DIN EN 50178: 1998-04.

The RS232 and RS485 communication interface connections are of a short-circuit

proof design.

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PV Powered 2500 Guía de instalación Pagina 59