SMA Sunny Central 500U Bedienungsanleitung

SC500U_GFDI-IUS101311 | 98-4022711 | Version 1.1

Change from negative to positive grounding

SUNNY CENTRAL 500U

Installation Guide

SMA America, LLC Legal Restrictions

Installation Guide SC500U_GFDI-IUS101311 3

No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form

or by any means, electronic, mechanical, photographic, magnetic or otherwise, without the prior

written permission of SMA America,LLC.

SMA America,LLC makes no representations, express or implied, with respect to this documentation

or any of the equipment and/or software it may describe, including (with no limitation) any implied

warranties of utility, merchantability, or fitness for any particular purpose. All such warranties are

expressly disclaimed. Neither SMA America,LLC nor its distributors or dealers shall be liable for any

indirect, incidental, or consequential damages under any circumstances.

(The exclusion of implied warranties may not apply in all cases under some statutes, and thus the

above exclusion may not apply.)

Specifications are subject to change without notice. Every attempt has been made to make this

document complete, accurate and up-to-date. Readers are cautioned, however, that

SMAAmerica,LLC reserves the right to make changes without notice and shall not be responsible for

any damages, including indirect, incidental or consequential damages, caused by reliance on the

material presented, including, but not limited to, omissions, typographical errors, arithmetical errors

or listing errors in the content material.

All trademarks are recognized even if these are not marked separately. Missing designations do not

mean that a product or brand is not a registered trademark.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and

any use of such marks by SMA America,LLC is under license.

SMA America, LLC

3801 N. Havana Street

Denver, CO 80239 U.S.A.

Important Safety Instructions SMA America, LLC

4 SC500U_GFDI-IUS101311 Installation Guide

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

This manual contains important instructions for Sunny Central 500U PV inverter, that must be followed

during installation and maintenance of the PV inverter.

The Sunny Central 500U is designed and tested according to international safety requirements, but

as with all electrical and electronic equipment, certain precautions must be observed when installing

and/or operating the Sunny Central 500U. To reduce the risk of personal injury and to ensure the

safe installation and operation of the Sunny Central 500U, you must carefully read and follow all

instructions, cautions and warnings in this installation guide.

Warnings in this document

A warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice,

which, if not correctly performed or adhered to, could result in damage to or destruction of part or all

of the SMA equipment and/or other equipment connected to the SMA equipment or personal injury.

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in death or

serious injury.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in death or

serious injury.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or

moderate injury.

NOTICE

NOTICE is used to address practices not related to personal injury.

SMA America, LLC Important Safety Instructions

Installation Guide SC500U_GFDI-IUS101311 5

Other symbols in this document

In addition to the safety and hazard symbols described on the previous pages, the following symbol

is also used in this installation guide:

Markings on this product

The following symbols are used as product markings with the following meanings.

Information

This symbol accompanies notes that call attention to supplementary information that you

should know and use to ensure optimal operation of the system.

Warning regarding dangerous voltage

The product works with high voltages. All work on the product must only be performed

as described in it‘s documentation.

Electric arc hazards

The product has large potential between its conductors. Arc flashes can occur through

air when high-voltage current flows. Do not work on the product during operation.

Beware of hot surface

The product can become hot during operation. Do not touch the product during

operation.

Observe the operating instructions

Read the documentation of the product before performing any work. Follow all safety

precautions and instructions as described in the documentation.

AC current

DC current

Earth Ground

UL1741 is the standard applied by Underwriters Laboratories to the Sunny Central

500U to certify that it meets the requirements of the National Electrical Code® and IEEE-

929-2000. IEEE 929-2000 provides recommendations regarding the proper equipment

and functionality necessary to ensure compatible operation when power generation is

connected to the power distribution grid.

General Warnings SMA America, LLC

6 SC500U_GFDI-IUS101311 Installation Guide

General warnings

All electrical installations must be done in accordance with the local codes and National

Electrical Code ANSI/NFPA 70.

The Sunny Central 500U contains no user-serviceable parts except for the fans on the

bottom of the enclosure and the filters behind the fans as well as the handle covers on the

sides of the unit. For all repair and maintenance, always return the unit to an authorized

SMA Service Center.

Before installing or using the Sunny Central 500U, read all of the instructions, cautions, and

warnings on the Sunny Central 500U in the installation guides.

Before connecting the Sunny Central 500U to the power distribution grid, contact the local

power distribution grid company. This connection must be made only by qualified

personnel.

Wiring of the Sunny Central 500U must be made by qualified personnel only.

SMA America, LLC Table of Contents

Installation Guide SC500U_GFDI-IUS101311 7

Table of contents

1 Notes on this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 List of materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Material n/a. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Additional material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Removal of the components . . . . . . . . . . . . . . . . . . . . . . . 12

4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.2 Remove transparent covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.3 Remove busbars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4 Remove the wires from current measurement . . . . . . . . . . . . . . 14

5 Mounting the components. . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1 Attach the wires to the current measurement . . . . . . . . . . . . . . 15

5.2 Mount busbars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.3 Attach markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.4 Check all connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.5 Attach Transparent Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table of Contents SMA America, LLC

8 SC500U_GFDI-IUS101311 Installation Guide

SMA America, LLC Notes on this manual

Installation Guide SC500U_GFDI-IUS101311 9

1 Notes on this manual

This manual describes the modification of a Sunny Central 500U to GFDI positive grounding. This

manual does not cover any details concerning PV modules. Information concerning the PV modules

is available from the manufacturer of the PV modules.

Keep this manual in a convenient place for future reference.

1.1 Target group

This manual is for qualified personnel only. Qualified personnel have received training and have

demonstrated skills and knowledge in the construction and operation of the device. Qualified

personnel are trained to deal with the dangers and hazards involved in installing electric devices.

1.2 Syntax

In this document the Sunny Central 500U is referred to in the following as Sunny Central.

In this document SMA America Production, LLC is referred to in the following as SMA.

Safety SMA America, LLC

10 SC500U_GFDI-IUS101311 Installation Guide

2 Safety

DANGER

During operation, high voltages are present in the Sunny Central.

Death from electric shock will result.

When working on the Sunny Central, the device must be disconnected form the power

supply and tested for absence of voltage. Be sure to observe the five safety rules for

working on electrical systems.

The five safety rules for working on electrical systems are listed below:

• Switch off the system.

• Ensure that the device cannot be reconnected.

• Wait at least 5 minutes for all internal power supplies to discharge.

• Test for absence of voltage.

• Ground and short-circuit.

•Prevent access to neighboring systems.

CAUTION

Danger of crushing results from falling components.

• Wear personal protective equipment when working on the Sunny Central.

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