SMA Sunny Boy SB 6000US User manual

SB50US-80US-IUS094030 | TBUS-SB50_60_70US | Version 3.0 US
Solar Inverter
SUNNY BOY 5000US / 6000US / 7000US / 8000US
Installation Guide

SMA Solar Technology AG
Installation Guide SB50US-80US-IUS094030 3
Copyright © 2009 SMA America, Inc. All rights reserved.
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, Inc.
SMA America 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 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
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.
SMA America, Incorporated
4031 Alvis Court
Rocklin, CA 95677
Tel. [phone]
Fax [phone]
www.SMA-America.com

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IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for Models SB 5000US, SB 6000US, SB 7000US,
SB 8000US SOLAR INVERTERS, that shall be followed during installation and maintenance of the
inverter.
The Sunny Boy 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 Boy. To reduce the risk of personal injury and to ensure the safe installation and
operation of the Sunny Boy, you must carefully read and follow all instructions, cautions and warnings
in this Installation Guide.
Warnings
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 indicates a situation that can result in property damage if not avoided.

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Installation Guide SB50US-80US-IUS094030 5
Other Symbols
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 markings on this product 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 may only be done as
described in its documentation.
Beware of hot surface
The product can become hot during operation. Avoid coming into contact with the
product during operation.
Observe the operating instructions
Read the product’s documentation before working on it. Follow all safety precautions
and instructions as described in the documentation.
UL1741 is the standard applied by Underwriters Laboratories to the Sunny Boy to certify
that it meets the requirements of the NEC 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 utility grid.

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General Warnings
General Warnings
All electrical installations must be done in accordance with the local and National Electrical
Code ANSI/NFPA 70.
The Sunny Boy contains no user-serviceable parts except for the fans on the bottom of the
enclosure and 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 Boy, read all of the instructions, cautions, and warnings
on the Sunny Boy, the PV array, in this Installation Guide.
Before connecting the Sunny Boy to the electrical utility grid, contact the local utility
company. This connection must be made only by qualified personnel.
PV arrays produce electrical energy when exposed to light and thus can create an
electrical shock hazard. Wiring of the PV-arrays should only be performed by qualified
personnel.

SMA Solar Technology AG Table of Contents
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Table of Contents
1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.1 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.2 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.3 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.4 Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2 Unpacking and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . 16
2.1 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3 AC Voltage Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1 Opening the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2 Locating Internal Components . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3 Configuring the AC Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4 Utility Configuration Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.1 Choosing a Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . . 26
4.1.1 Selection of the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.1.2 Ambient Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1.3 Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2 Dimensions and Required Clearances . . . . . . . . . . . . . . . . . . . 28
4.3 Mounting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.3.1 Mounting the Wall-Mounting Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.3.2 Mounting the SMA DC-Disconnect (if applicable) . . . . . . . . . . . . . . . . . . . . 33
4.3.3 Mounting the Sunny Boy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5 Wiring the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.1 Sequence of Connecting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.1.1 Wiring without SMA DC-Disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.1.2 Wiring with SMA DC-Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.2 Bottom View and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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5.3 Opening the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.4 Opening the SMA DC-Disconnect (if applicable). . . . . . . . . . . 41
5.5 Wiring the AC Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.5.1 AC Connection Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.5.2 AC Wiring Without SMA DC-Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
5.5.3 AC Wiring With SMA DC-Disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
5.6 Wiring the DC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
5.6.1 DC Connection Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5.7 DC Input Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.8 Connecting the DC Wires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.8.1 DC Wiring Without SMA DC-Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.8.2 DC Wiring With SMA DC-Disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.8.3 DC Connection With Additional DC Distribution . . . . . . . . . . . . . . . . . . . . . 65
5.9 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.10 Closing the Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.11 Closing the SMA DC-Disconnect (if applicable). . . . . . . . . . . . 68
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7 Displays and Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7.1 LED Operation Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
7.2 LED Fault Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
7.3 Status Messages on the LCD Display . . . . . . . . . . . . . . . . . . . . 77
7.3.1 LCD Display Language Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
7.4 Measuring Channels and Parameters. . . . . . . . . . . . . . . . . . . . 81
7.4.1 Measuring Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
7.4.2 Operating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
7.4.3 Sunny Boy Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
8.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
8.2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

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9 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.1 Cleaning the Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.2 Cleaning the Handle Covers . . . . . . . . . . . . . . . . . . . . . . . . . . 91
9.3 Testing the Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
9.4 Exchanging the Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
9.4.1 Exchanging the GFDI Fuse within the Sunny Boy . . . . . . . . . . . . . . . . . . . . . 93
9.4.2 Exchanging the PV String Fuses within the SMA DC-Disconnect. . . . . . . . . . 94
10 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
10.1 FCC Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . 96
10.2 Sunny Boy Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . 97
10.2.1 Without SMA DC-Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
10.2.2 With SMA DC-Disconnect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
10.3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
10.3.1 Sunny Boy 5000US and Sunny Boy 6000US . . . . . . . . . . . . . . . . . . . . . . . 99
10.3.2 Sunny Boy 7000US and Sunny Boy 8000US . . . . . . . . . . . . . . . . . . . . . . 100
10.3.3 SMA DC-Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
10.4 Trip Limits / Trip Times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
10.5 Torque Values and Wire Sizes . . . . . . . . . . . . . . . . . . . . . . . . 104

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