SMA SUNNY BOY 2500 User manual

Sunny Boy 2500

String Inverter Sunny Boy 2500

Installation Guide Version 1.2 SB2500-11:SE2006

IME-SB2500

SMA Technologie AG Explanation of Symbols used in this Document

Installation Guide SB2500-11:SE2006 Page 3

Explanation of Symbols used in this document

This symbol indicates information that is essential for a trouble-free

and safe operation of the product. Please read these sections care-

fully in order to avoid any damages of the equipment and for op-

timal personal protection.

This symbol indicates information that is required for the optimal operation of

the product. Read these sections carefully in order to ensure an optimal ope-

ration of the product and all its features.

This symbol indicates an example.

Legal Restrictions SMA Technologie AG

Page 4 SB2500-11:SE2006 Installation Guide

Liability exclusion

All information are based on our "General Terms and Conditions of Delivery of SMA Technologie AG”.

The content of this documentation is reviewed continuously and adjusted, if necessary. SMA Technologie

AG provides this documentation without exclusion of deviations and without warranty of completeness. You

will find the current version on the Internet at www.SMA.de or can obtain it via the usual sales channels.

Warranty or liability claims for all kinds are excluded in case of damages due to:

• Inappropriate use of the product

• Operation of the product in an improper environment

• Operation of the product without considering the relevant safety regulations

• Non-fulfillment of the warnings or safety instructions described in the documentation for the product

• Operation of the product under faulty conditions concerning security and protection

• Arbitrary changing of the product or the provided software

• Failure of the product due to interference of connected or contiguous devices out of legal limit values

• Disasters and force majeure

Software Licensing

The use of the provided software by SMA Technologie AG is subject to the following conditions:

The software may be reproduced for internal purposes and installed on any number of computers. Provided

source codes can be changed and adjusted on the company’s own authority according to the internal

purpose. Driver may be ported to other operating systems as well. No part of the source codes may be

published without written permission of SMA Technologie AG. Sublicensing of the software is not

acceptable.

Liability limitation: SMA Technologie AG disclaims liability for any direct or indirect consequential damages

arising from the use of the software produced by SMA Technologie AG. The same applies for the provision

and/or non-provision of support.

Provided software not produced by SMA Technologie AG is subject to the respective licensing and liability

agreements of the manufacturer.

Trademarks

All brand and product names used herein are trademarks or registered trademarks of their respective

holders, although they may not be specifically designated as such.

SMA Technologie AG

Hannoversche Strasse 1-5

34266 Niestetal

Germany

Tel. (+49) 5 61 95 22 – 0

Fax (+49) 5 61 95 22 – 100

www.SMA.de

E-Mail: info@SMA.de

SMA Technologie AG Table of Contents

Installation Guide SB2500-11:SE2006 Page 5

Table of Contents

1 Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Unit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

3.2 External dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

4 Installation requirements . . . . . . . . . . . . . . . . . . . . . 13

4.1 Installation site requirements . . . . . . . . . . . . . . . . . . . . . . . . .13

4.2 PV generator requirements. . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3 Low voltage grid 230 V (AC). . . . . . . . . . . . . . . . . . . . . . . . .15

5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.1 Mounting the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

5.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

5.3 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

6 Opening and closing the Sunny Boy . . . . . . . . . . . . 29

6.1 Opening the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

6.2 Closing the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

7 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.1 PV generator connection data . . . . . . . . . . . . . . . . . . . . . . . .31

7.2 Grid connection data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

7.3 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

7.4 Sunny Boy 2500 Operating parameters . . . . . . . . . . . . . . . . .33

8 Replacing the varistors. . . . . . . . . . . . . . . . . . . . . . . 35

9 Rating for a line circuit breaker. . . . . . . . . . . . . . . . . 39

10 Contact. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Table of Contents SMA Technologie AG

Page 6 SB2500-11:SE2006 Installation Guide

SMA Technologie AG Foreword

Installation Guide SB2500-11:SE2006 Page 7

1 Foreword

This installation manual is intended solely for qualified electricians. Its aim is to help

install and set up SMA Sunny Boy 2500 inverters quickly and correctly.

For detailed information on troubleshooting and on how to use the Sunny Boy 2500,

including information about the different communication options, please see the

operating instructions.

The „Sunny Design“ tool will help to dimension and check the size of your strings with

respect to the inverter you intend to use. Further information about „Sunny Design“

is available at www.SMA.de.

If your Sunny Boy is equipped with a communication interface, you will find detailed

instructions for installation in the description of the communication interfaces (Piggy-

Backs), which has been delivered with the device.

If you require further information, please call the Sunny Boy hotline on the following

number:

+49 (561) 95 22 - 499

The installation of the Sunny Boy may only be done by qualified

technicians. The installer must be approved by the utility company.

Please read the installation guide carefully before you begin with

the installation. The installation of utility interactive power sources

must be compliant with all applicable regulations of the utility

company and with all applicable regulations and standards.

The Sunny Boy 2500 is equipped with the SMA grid guard. This is a type of

independent disconnection device. It ensures that the Sunny Boy 2500

complies with the VDEW (Verband der Elektrizitätswirtschaft – German

Electricity Industry Association) regulations for the connection and parallel

operation of electrical power units to the low-voltage grid of the electricity

supply company and with DIN VDE 0126 (4.99) which forms a part of these

regulations.

Foreword SMA Technologie AG

Page 8 SB2500-11:SE2006 Installation Guide

SMA Technologie AG Safety information

Installation Guide SB2500-11:SE2006 Page 9

2 Safety information

Check your plant configuration and the

string sizing with „Sunny Design“

(available at www.SMA.de) or with the

Sunny Boy Hotline before you start with

the installation. Exceeding the

specifications with the input voltage will

destroy the Sunny Boy. Overvoltage on

the DC side can even cause dangerous

explosions of the Sunny Boys input

capacitors and explosions of the

electrolytes coming from the exploded

capacitors.

Work on the Sunny Boy with the lid removed must be carried out

by a qualified electrician. Hazardous and even lethal voltages can

be encountered within the enclosure. Before working on the Sunny

Boy with the lid removed, the AC and DC voltages MUST be

disconnected from the Sunny Boy and it must be sure that all

capacitors are discharged.

The Sunny Boy must be disconnected from the mains and

precautions must be taken to prevent the grid being reconnected.

In addition, the connections to the PV generator must be

disconnected.

After isolating the AC and DC voltage you must wait approx. 30

minutes for the capacitors in the Sunny Boy to discharge. Only then

is it safe to open the unit by removing the lid. You must also make

sure that no voltage is present in the device.

The electronics inside your Sunny Boy 2500 is vulnerable in terms

of electrostatic discharge. Be sure to be connected to ground (e.g.

the enclosure of the Sunny Boy) before handling anything within

the enclosure of the Sunny Boy.

Betrieb

Operation

Erdschluss

EarthFault

Störung

Failure

Photovoltaik-Stringwechselrichter

Photovoltaicstring inverter

Safety information SMA Technologie AG

Page 10 SB2500-11:SE2006 Installation Guide

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