SMA SUNNY BOY 3.0-US User manual

SUNNY BOY
SBxx-US-1XP-40-BA-en-12 | Version 1.2ENGLISH
User Manual
SUNNY BOY 3.0-US / 3.8-US / 5.0-US /
6.0-US / 7.0-US / 7.7-US

Legal Provisions SMA Solar Technology America LLC
User ManualSBxx-US-1XP-40-BA-en-122
Legal Provisions
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any
form or by any means, be it electronic, mechanical, photographic, magnetic or otherwise, without
the prior written permission of SMA Solar Technology America LLC.
Neither SMA Solar Technology AmericaLLC nor SMA Solar Technology Canada Inc. makes
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 representations or warranties are
expressly disclaimed. Neither SMA Solar Technology AmericaLLC nor its distributors or dealers nor
SMA Solar Technology Canada Inc. 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 product
improvements and field usage experience may cause SMA Solar Technology America LLC and/or
SMA Solar Technology Canada Inc. to make changes to these specifications without advance
notice, or per contract provisions in those cases where a supply agreement requires advance
notice. SMA 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 Warranty
You can download the current warranty conditions from the Internet at www.SMA-Solar.com.
Software licenses
The licenses for the used software modules can be called up on the user interface of the product.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
SMA Solar Technology America LLC
6020 West Oaks Blvd.
Suite 300 Rocklin, CA 95765 U.S.A.
SMA Solar Technology Canada Inc.
2425 Matheson Blvd. E
7th Floor
Mississauga, ON L4W 5K4
Canada
Status: 6/29/2018
Copyright © 2018 SMA Solar Technology America LLC. All rights reserved.

Table of Contents
SMA Solar Technology America LLC
User Manual SBxx-US-1XP-40-BA-en-12 3
Table of Contents
1 Information on this Document................................................. 5
1.1 Validity........................................................................................................................ 5
1.2 Target Group.............................................................................................................. 5
1.3 Content and Structure of this Document ................................................................... 5
1.4 Levels of warning messages ...................................................................................... 5
1.5 Symbols in the Document .......................................................................................... 6
1.6 Typographies in the document.................................................................................. 6
1.7 Designation in the document..................................................................................... 7
1.8 Additional Information ............................................................................................... 7
2 Safety ........................................................................................ 8
2.1 Intended Use .............................................................................................................. 8
2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 9
3 Product Overview .................................................................... 12
3.1 Product Description .................................................................................................... 12
3.2 Symbols on the Product ............................................................................................. 13
3.3 Interfaces and Functions ............................................................................................ 14
3.4 LED Signals................................................................................................................. 18
3.5 Display messages....................................................................................................... 19
4 Operation ................................................................................. 20
4.1 Establishing a connection to the user interface ........................................................ 20
4.1.1 Establishing a Direct Connection via Ethernet ...................................... 20
4.1.2 Establishing a direct connection via WLAN ......................................... 20
4.1.3 Establishing a Connection via Ethernet in the local network ............... 22
4.1.4 Establishing a Connection via WLAN in the Local Network ............... 23
4.2 Logging In and Out of the User Interface................................................................. 24
4.3 Activating and Operating the Display...................................................................... 24
4.4 Start Page Design of the User Interface.................................................................... 26
4.5 Displaying and Downloading the Stored Data........................................................ 28
4.6 Starting the Installation Assistant............................................................................... 29
4.7 Secure Power Supply Operation .............................................................................. 30
4.7.1 Activating Secure Power Supply Operation......................................... 30
4.7.2 Deactivating Secure Power Supply Operation..................................... 31
4.8 Activate WPS Function............................................................................................... 31
4.9 Switching WLAN On and Off................................................................................... 32
4.10 Switching the Dynamic Power Display Off............................................................... 33
4.11 Changing the Password............................................................................................. 33

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4.12 Changing Operating Parameters.............................................................................. 34
4.13 Configuring the Country Data Set............................................................................. 35
4.14 Activating of the Rapid Shutdown DC discharge function ...................................... 35
4.15 Configuring the Modbus Function............................................................................. 36
4.16 Setting SMA OptiTrac Global Peak ......................................................................... 36
4.17 Deactivating the Arc-Fault Circuit Interrupter (AFCI)................................................ 37
4.18 Saving the Configuration in a File............................................................................. 37
4.19 Adopting a Configuration from a File....................................................................... 37
4.20 Updating the Firmware.............................................................................................. 38
5 Cleaning the Inverter ............................................................... 40
6 Troubleshooting........................................................................ 41
6.1 Forgotten Password.................................................................................................... 41
6.2 Event Messages ......................................................................................................... 42
6.3 Checking the PV System for Ground Faults.............................................................. 60
6.4 Resetting the Operation Inhibition after Detection of an Arc Fault ......................... 64
7 Compliance Information .......................................................... 66
8 Contact ...................................................................................... 67

1 Information on this Document
SMA Solar Technology America LLC
User Manual SBxx-US-1XP-40-BA-en-12 5
1 Information on this Document
1.1 Validity
This document is valid for:
• SB3.0-1SP-US-40 (Sunny Boy 3.0-US)
• SB3.8-1SP-US-40 (Sunny Boy 3.8-US)
• SB5.0-1SP-US-40 (Sunny Boy 5.0-US)
• SB6.0-1SP-US-40 (Sunny Boy 6.0-US)
• SB7.0-1SP-US-40 (Sunny Boy 7.0-US)
• SB7.7-1SP-US-40 (Sunny Boy 7.7-US)
• SB3.0-1TP-US-40 (Sunny Boy 3.0-US)
• SB3.8-1TP-US-40 (Sunny Boy 3.8-US)
• SB5.0-1TP-US-40 (Sunny Boy 5.0-US)
• SB6.0-1TP-US-40 (Sunny Boy 6.0-US)
• SB7.0-1TP-US-40 (Sunny Boy 7.0-US)
• SB7.7-1TP-US-40 (Sunny Boy 7.7-US)
1.2 Target Group
This document is intended for qualified persons and end users. Only qualified persons are allowed
to perform the activities marked in this document with a warning symbol and the caption
"Qualifiedperson". Tasks that do not require any particular qualification are not marked and can
also be performed by end users. Qualified persons must have the following skills:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing, repairing and
using electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of all applicable laws, standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Content and Structure of this Document
This document describes the configuration, operation and troubleshooting of the product as well as
the operation of the product user interface.
You will find the latest version of this document and further information on the product in PDF format
at www.SMA-Solar.com.
Illustrations in this document are reduced to the essential information and may deviate from the real
product.
1.4 Levels of warning messages
The following levels of warning messages may occur when handling the product.

1 Information on this Document SMA Solar Technology America LLC
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DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, can result in property damage.
1.5 Symbols in the Document
Symbol Explanation
Information that is important for a specific topic or goal, but is not safety-rele-
vant
☐
Indicates a requirement for meeting a specific goal
☑
Desired result
✖
A problem that might occur
Example
1.6 Typographies in the document
Typography Use Example
bold • Messages
• Terminals
• Elements on a user interface
• Elements to be selected
• Elements to be entered
• Connect the insulated
conductors to the terminals
X703:1 to X703:6.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected
• Select Settings > Date.
[Button]
[Key]
• Button or key to be selected or
pressed
• Select [Enter].

1 Information on this Document
SMA Solar Technology America LLC
User Manual SBxx-US-1XP-40-BA-en-12 7
1.7 Designation in the document
Complete designation Designation in this document
SMA Solar Technology America LLC SMA
SMA Solar Technology Canada Inc. SMA
SunnyBoy Inverter, product
1.8 Additional Information
For more information, please go to www.SMA-Solar.com.
Title and information content Type of information
Mounting, installation, commissioning and decommissioning Installation manual
"Application for SMAGridGuard Code" Form
"PUBLIC CYBER SECURITY - Guidelines for a Secure PV System
Communication"
Technical information
"Efficiency and Derating"
Efficiency and derating behavior of the SMA inverters
Technical Information
"Grid Support Utility Interactive Inverters"
Information about how to activate and to set the grid supporting fea-
tures according to UL1741SA
Technical Information
"Parameters and Measured Values"
Overview of all inverter operating parameters and their configura-
tion options
Technical Information
"SMA Modbus® Interface"
List with the product specific SMA Modbus registers
Technical Information
"SMAModbus® Interface"
Information on the commissioning and configuration of the SMA
Modbus interface
Technical Information
"SunSpec® Modbus® Interface"
List with the product specific SunSpec Modbus registers
Technical Information
"SunSpec® Modbus® Interface"
Information on the commissioning and configuration of the SunSpec
Modbus interface
Technical Information

2 Safety SMA Solar Technology America LLC
User ManualSBxx-US-1XP-40-BA-en-128
2 Safety
2.1 Intended Use
The Sunny Boy is a transformerless PV inverter which converts the direct current of the PV array to
grid-compliant alternating current and feeds it into the utility grid.
The product is suitable for indoor and outdoor use.
The product must only be operated with PV arrays (PV modules and cabling) that are approved by
the electrical standards applicable on-site and the NationalElectricalCode® ANSI/NFPA 70 or
the CanadianElectricalCode® CSA C22.1.
No galvanic isolation
The product is not equipped with a transformer and therefore has no galvanic isolation.
• Do not operate grounded PV modules together with the product. If grounded PV modules
are connected to the product, an event will occur which will appear on the product
display. The event will also be displayed, along with the associated message, in the event
list on the user interface of the product.
• Only ground the mounting frames of the PV modules.
• The neutral conductor of the AC output is not bonded to ground within the product.
• The neutral conductor of the AC output for secure power supply operation is bonded to
ground within the product.
PV modules with a high capacity to ground may only be used if their coupling capacity does not
exceed 2.5μF.
To protect the PV system against excessive reverse currents under fault conditions, a DC-side
overcurrent protective device must be connected in accordance with the National Electrical Code®
to prevent any short-circuit currents that exceed the ampacity of the DC electric circuit or the
maximum series fuse rating of the PV modules. Typically, this requires string fusing where more than
two strings are combined in parallel. Where an overcurrent protection device is required, the
National Electrical Code® requires that both positive and negative conductors have overcurrent
protection for ungrounded PV modules.
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The product is approved for the US and Canadian market.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA. Unauthorized alterations will void guarantee and warranty claims and in most
cases terminate the operating license. SMA shall not be held liable for any damage caused by
such changes.
Any use of the product other than that described in the Intended Use section does not qualify as the
intended use.

2 Safety
SMA Solar Technology America LLC
User Manual SBxx-US-1XP-40-BA-en-12 9
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.
The type label must remain permanently attached to the product.
2.2 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This section contains safety information that must be observed at all times when working on or with
the product.
The product has been designed and tested in accordance with international safety requirements. As
with all electrical or electronical devices, there are residual risks despite careful construction. To
prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
DANGER
Danger to life due to electric shock when live components or DC conductors
are touched
When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the
DC conductors and the live components of the inverter. Touching live DC conductors results in
death or lethal injuries due to electric shock.
• Disconnect the product from voltage sources and make sure it cannot be reconnected
before working on the device.
• Do not touch non-insulated parts or cables.
• Do not remove the terminal block with the connected DC conductors from the slot under
load.
• Wear suitable personal protective equipment for all work on the product.
DANGER
Danger to life due to electric shock when touching live system components in
case of a ground fault
If a ground fault occurs, parts of the system may still be live. Touching live parts and cables
results in death or lethal injuries due to electric shock.
• Disconnect the product from voltage sources and make sure it cannot be reconnected
before working on the device.
• Touch the cables of the PV array on the insulation only.
• Do not touch any parts of the substructure or frame of the PV array.
• Do not connect PV strings with ground faults to the inverter.
• Ensure that no voltage is present and wait five minutes before touching any parts of the PV
system or the product.

2 Safety SMA Solar Technology America LLC
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CAUTION
Risk of burns from hot surfaces
The surface of the inverter can get very hot. Touching the surface can result in burns.
• Mount the inverter in such a way that it cannot be touched inadvertently.
• Do not touch hot surfaces.
• Wait 30 minutes for the surface to cool sufficiently.
• Observe the safety messages on the inverter.
NOTICE
Damage to the enclosure seal in subfreezing conditions
If you open the product when temperatures are below freezing, the enclosure seals can be
damaged. Moisture can penetrate the product then.
• Only open the product if the ambient temperature is not below 0°C (32°F).
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing,
remove it prior to opening the product (e.g. by melting the ice with warm air). Observe the
applicable safety regulations.
NOTICE
Damage to the product due to sand, dust and moisture ingress
Sand, dust and moisture penetration can damage the product and impair its functionality.
• Only open the product if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the product during a dust storm or precipitation.
• Close tightly all enclosure openings.
• Only use listed rain-tight or liquid-tight conduit fittings to attach the conduits to the product.
NOTICE
Damage due to cleaning agents
The use of cleaning agents may cause damage to the product and its components.
• Clean the product and all its components only with a cloth moistened with clear water.
NOTICE
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any component.