SMA Solar Technology SUNNY BOY 1.5 User manual

Operating manual
SUNNY BOY 1.5 / 2.0 / 2.5
SBxx-1VL-40-BE-en-19 | Version 1.9ENGLISH

Legal Provisions SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-192
Legal Provisions
The information contained in these documents is the property of SMA Solar Technology AG. 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 AG. Internal reproduction used solely for the purpose
of product evaluation or other proper use is allowed and does not require prior approval.
SMA Solar Technology AG makes no representations or warranties, 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 AG 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 AG to make changes
to these specifications without advance notice or per contract provisions. SMA Solar Technology
AG 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 installed software modules (open source) can be found in 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 AG
Sonnenallee 1
34266 Niestetal
Germany
Phone [phone]
Fax [phone]
www.SMA.de
E-mail: [email protected]
Status: 1/26/2022
Copyright © 2021 SMA Solar Technology AG. All rights reserved.

Table of Contents
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 3
Table of Contents
1 Information on this Document................................................. 6
1.1 Validity........................................................................................................................ 6
1.2 Target Group.............................................................................................................. 6
1.3 Content and Structure of this Document ................................................................... 6
1.4 Levels of warning messages ...................................................................................... 6
1.5 Symbols in the Document .......................................................................................... 7
1.6 Typographical Elements in the Document ................................................................ 7
1.7 Designations in the Document................................................................................... 7
1.8 Additional Information ............................................................................................... 8
2 Safety ........................................................................................ 9
2.1 Intended Use .............................................................................................................. 9
2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 9
3 Scope of Delivery ..................................................................... 14
4 Product Overview .................................................................... 15
4.1 Product Description .................................................................................................... 15
4.2 Symbols on the Product ............................................................................................. 16
4.3 Interfaces and Functions ............................................................................................ 18
4.4 LED Signals................................................................................................................. 20
4.5 System Overview ....................................................................................................... 22
4.5.1 Circuitry Overview.................................................................................. 23
4.5.2 Communication Overview ..................................................................... 24
5 Mounting................................................................................... 25
5.1 Requirements for Mounting ....................................................................................... 25
5.2 Mounting the product ................................................................................................ 27
6 Electrical Connection ................................................................ 30
6.1 Overview of the Connection Area ............................................................................ 30
6.2 AC Connection........................................................................................................... 30
6.2.1 Requirements for the AC Connection .................................................... 30
6.2.2 Connecting the Inverter to the Utility Grid ............................................ 32
6.2.3 Connecting Additional Grounding........................................................ 34
6.3 Connecting the Network Cables............................................................................... 35
6.4 DC Connection........................................................................................................... 37
6.4.1 Requirements for the DC Connection.................................................... 37
6.4.2 Assembling the DC Connectors............................................................. 38
6.4.3 Connecting the PV Array........................................................................ 40

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Operating manualSBxx-1VL-40-BE-en-194
6.4.4 Disassembling the DC Connectors ........................................................ 41
7 Commissioning ......................................................................... 43
7.1 Commissioning Procedure ......................................................................................... 43
7.2 Commissioning the Inverter........................................................................................ 44
7.3 Selecting a configuration option ............................................................................... 45
7.4 Starting the Self-Test (for Italy and Dubai)................................................................ 47
8 Operation ................................................................................. 48
8.1 Establishing a connection to the user interface ........................................................ 48
8.1.1 Establishing a Direct Connection via Ethernet ...................................... 48
8.1.2 Establishing a direct connection via WLAN ......................................... 48
8.1.3 Establishing a Connection via Ethernet in the local network ............... 50
8.1.4 Establishing a Connection via WLAN in the Local Network ............... 51
8.2 Logging In and Out of the User Interface................................................................. 52
8.3 Start Page Design of the User Interface.................................................................... 54
8.4 Starting the Installation Assistant............................................................................... 56
8.5 Activate WPS Function............................................................................................... 57
8.6 Switching WLAN On and Off................................................................................... 58
8.7 Switching the Dynamic Power Display Off............................................................... 59
8.8 Changing the Password............................................................................................. 59
8.9 Changing Operating Parameters.............................................................................. 60
8.10 Configuring the Country Data Set............................................................................. 61
8.11 Configuring the Active Power Mode ........................................................................ 62
8.12 Configuring the Modbus Function............................................................................. 63
8.13 Activating the Receipt of Control Signals (Only for Italy)........................................ 63
8.14 Deactivating Grounding Conductor Monitoring...................................................... 64
8.15 Configuring the Energy Meter................................................................................... 64
8.16 Setting SMA ShadeFix............................................................................................... 65
8.17 Saving the Configuration in a File............................................................................. 65
8.18 Adopting a Configuration from a File....................................................................... 66
8.19 Firmware Update ....................................................................................................... 66
8.19.1 Activating Automatic Firmware Update ................................................ 66
8.19.2 Updating Firmware with Update File via the User Interface................ 67
8.19.3 Searching for and Installing New Firmware via the User Interface .... 67
9 Disconnecting the Inverter from Voltage Sources ................. 69
10 Clean the product..................................................................... 71
11 Troubleshooting........................................................................ 72
11.1 Forgotten Password.................................................................................................... 72

Table of Contents
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Operating manual SBxx-1VL-40-BE-en-19 5
11.2 Event Messages ......................................................................................................... 73
11.3 Checking the PV System for Ground Faults.............................................................. 89
11.4 Problems with streaming services.............................................................................. 93
12 Decommissioning the Inverter................................................. 94
13 Technical Data .......................................................................... 95
14 Spare Parts ...............................................................................100
15 Contact ......................................................................................101
16 EU Declaration of Conformity .................................................102
17 UK Declaration of Conformity.................................................103

1 Information on this Document SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-196
1 Information on this Document
1.1 Validity
• SB1.5-1VL-40 (Sunny Boy 1.5) from firmware version ≥ 3.11.00.R
• SB2.0-1VL-40 (Sunny Boy 2.0) from firmware version ≥ 3.11.00.R
• SB2.5-1VL-40 (Sunny Boy 2.5) from firmware version ≥ 3.11.00.R
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 mounting, installation, commissioning, configuration, operation,
troubleshooting and decommissioning 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
and as eManual at www.SMA-Solar.com. You can also call up the eManual via the user interface
of the product.
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.
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.

1 Information on this Document
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 7
NOTICE
Indicates a situation which, if not avoided, can result in property damage.
1.5 Symbols in the Document
Icon 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
Sections describing activities to be performed by qualified persons only
1.6 Typographical Elements in the Document
Typographical ele-
ment
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
• Go to Settings > Date.
[Button]
[Key]
• Button or key to be clicked on or
pressed down
• Select [Enter].
# • Placeholder for variable
components (e.g., parameter
names)
• Parameter WCtlHz.Hz#
1.7 Designations in the Document
Complete designation Designation in this document
SunnyBoy Inverter, product

1 Information on this Document SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-198
1.8 Additional Information
For more information, please go to www.SMA-Solar.com.
Title and information content Type of information
"PUBLIC CYBER SECURITY - Guidelines for a Secure PV System
Communication"
Technical Information
"SMA GRID GUARD 10.0 - Grid Management Services via Inverter
and System Controller"
Technical Information
"Efficiency and Derating"
Efficiency and derating behavior of the SMA inverters
Technical Information
"Parameters and Measured Values"
Overview of all inverter operating parameters and their configura-
tion options
Technical Information
"SMA and SunSpec Modbus® Interface"
Information on the Modbus interface
Technical Information
"Modbus® parameters and measured values"
Device-specific list of the Modbus register
Technical Information
"SMASPEEDWIRE FIELDBUS" Technical information

2 Safety
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 9
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 modules of protection class II in accordance with
IEC61730, application class A. The PV modules must be compatible with this product.
The product is not equipped with an integrated transformer and therefore has no galvanic isolation.
The product must not be operated with PV modules whose outputs are grounded. This can cause
the product to be destroyed. The product may be operated with PV modules whose frame is
grounded.
PV modules with a high capacity to ground must only be used if their coupling capacity does not
exceed 900nF (for information on how to determine the coupling capacity, see the Technical
Information "Leading Leakage Currents" at www.SMA-Solar.com).
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The product must only be used in countries for which it is approved or released by SMA Solar
Technology AG and the grid operator.
Use SMA products only in accordance with the information provided in the enclosed
documentation and with the locally applicable laws, regulations, standards and directives. Any
other application may cause personal injury or property damage.
Alterations to the SMA products, e.g., changes or modifications, are only permitted with the express
written permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and
warranty claims and in most cases terminate the operating license. SMA Solar Technology AG
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
appropriate.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient, dry place for future reference and observe all instructions contained therein.
This document does not replace any regional, state, provincial, federal or national laws, regulations
or standards that apply to the installation, electrical safety and use of the product. SMA Solar
Technology AG assumes no responsibility for the compliance or non-compliance with such laws or
codes in connection with the installation of the product.
The type label must remain permanently attached to the product.
2.2 IMPORTANT SAFETY INSTRUCTIONS
Keep the manual for future reference.

2 Safety SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-1910
This section contains safety information that must be observed at all times when working.
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 cables are
touched
When exposed to light, the PV modules generate high DC voltage which is present in the DC
cables. Touching live DC cables results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Disconnect the product from voltage sources and ensure it cannot be reconnected before
working on the device.
• Do not disconnect the DC connectors under load.
• Wear suitable personal protective equipment for all work on the product.
DANGER
Danger to life due to electric shock when live components are touched on
opening the product
High voltages are present in the live parts and cables inside the product during operation.
Touching live parts and cables results in death or lethal injuries due to electric shock.
• Do not open the product.
DANGER
Danger to life due to electric shock from touching an ungrounded PV module
or array frame
Touching ungrounded PV modules or array frames results in death or lethal injuries due to electric
shock.
• Connect and ground the frame of the PV modules, the array frame and the electrically
conductive surfaces so that there is continuous conduction. Observe the applicable local
regulations.

2 Safety
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 11
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 ensure it cannot be reconnected before
working on the device.
• Only touch the cables of the PV modules on their insulation.
• 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.
DANGER
Danger to life due to electric shock in case of overvoltages and if surge
protection is missing
Overvoltages (e.g. in the event of a flash of lightning) can be further conducted into the building
and to other connected devices in the same network via the network cables or other data cables
if there is no surge protection. Touching live parts and cables results in death or lethal injuries due
to electric shock.
• Ensure that all devices in the same network are integrated in the existing overvoltage
protection.
• When laying the network cable outdoors, ensure that there is suitable surge protection at
the network cable transition from the product outdoors to the network inside the building.
• The Ethernet interface of the product is classified as "TNV-1" and offers protection against
overvoltages of up to 1.5kV.
WARNING
Danger to life due to fire and explosion
In rare cases, an explosive gas mixture can be generated inside the product under fault
conditions. In this state, switching operations can cause a fire inside the product or explosion.
Death or lethal injuries due to hot or flying debris can result.
• In the event of a fault, do not perform any direct actions on the product.
• Ensure that unauthorized persons have no access to the product.
• Do not operate the DC load-break switch on the inverter in case of an error.
• Disconnect the PV array from the inverter via an external disconnection device. If there is no
disconnecting device present, wait until no more DC power is applied to the inverter.
• Disconnect the AC circuit breaker, or keep it disconnected in case it has already tripped,
and secure it against reconnection.
• Only perform work on the product (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).

2 Safety SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-1912
WARNING
Risk of injury due to toxic substances, gases and dusts.
In rare cases, damages to electronic components can result in the formation of toxic substances,
gases or dusts inside the product. Touching toxic substances and inhaling toxic gases and dusts
can cause skin irritation, burns or poisoning, trouble breathing and nausea.
• Only perform work on the product (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).
• Ensure that unauthorized persons have no access to the product.
WARNING
Danger to life due to electric shock from destruction of the measuring device
due to overvoltage
Overvoltage can damage a measuring device and result in voltage being present in the
enclosure of the measuring device. Touching the live enclosure of the measuring device results in
death or lethal injuries due to electric shock.
• Only use measuring devices with a DC input voltage range of 1000V or higher.
CAUTION
Risk of burns due to hot enclosure parts
Some parts of the enclosure can get hot during operation. Touching hot enclosure parts can
result in burn injuries.
• During operation, do not touch any parts other than the enclosure lid of the inverter.
CAUTION
Risk of injury due to weight of product
Injuries may result if the product is lifted incorrectly or dropped while being transported or
mounted.
• Transport and lift the product carefully. Take the weight of the product into account.
• Wear suitable personal protective equipment for all work on the product.
NOTICE
High costs due to inappropriate Internet tariff
Depending on use, the data volume of the product transferred via the Internet may vary in size.
The data volume depends, for example, on the number of devices in the system, the frequency of
device updates, the frequency of data transfer to SunnyPortal or the use of FTP push. High costs
for the Internet connection can be the result.
• SMA Solar Technology AG recommends using an Internet flat rate.

2 Safety
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 13
NOTICE
Damage to the product 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.
Change to the names and units of grid parameters to comply with the grid-
connection requirements in accordance with Regulation (EU) 2016/631
(valid from April 27, 2019)
To comply with the EU grid-connection requirements (valid from April 27, 2019) the names
and units of grid parameters were changed. This change is valid from firmware version
≥3.00.00.R if a country data set for fulfilling the EU grid-connection requirements (valid from
2019-04-27) is set. Names and units of grid parameters for inverters with firmware version
≤2.99.99.R are not affected by this change and remain valid. This also applies from firmware
version ≥3.00.00.R if a country data set that is valid for countries outside the EU is set.
A country data set must be set for feed-in operation
From firmware version 3.11.00.R, the activation conditions for feed-in operation were
changed.
To ensure the inverter begins feed-in operation during initial commissioning, a country data set
must be set (for instance via the installation assistant on the user interface of the product, or via
a communication product).
If no country data set is set, then feed-in operation will be stopped. This state is signaled by the
green and red LEDs flashing simultaneously.
The inverter will automatically start feed-in operation only after the inverter configuration is
completed.
The country data set must be set correctly.
If you select a country data set which is not valid for your country and purpose, it can cause a
disturbance in the PV system and lead to problems with the grid operator. When selecting the
country data set, you must always observe the locally applicable standards and directives as
well as the properties of the PV system (e.g. PV system size, grid-connection point).
• If you are not sure which standards and directives are valid for your country or purpose,
contact the grid operator.

3 Scope of Delivery SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-1914
3 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your
distributor if the scope of delivery is incomplete or damaged.
B D
+
G
_
H
A
J
LN
I
CE F
K
Figure 1: Components included in the scope of delivery
Position Quantity Designation
A 1 Inverter
B 1 Connection cap
C 1 Clamping bracket
D 1 Cylindrical screw M5x16
E 1 Spring lock washer
F 1 Washer M5
G 1 Terminal block for the AC connection
H 1 Positive DC connector
I 1 Negative DC connector
J 2 Sealing plug
K 1 Quick reference guide with password label on the rear side
The label contains the following information:
• PIC (Product Identification Code) identification key for
registering the system in SunnyPortal
• RID (Registration Identifier) registration ID for registering the
system in SunnyPortal
• WLAN password WPA2-PSK (WiFi Protected Access 2 -
Preshared Key) for direct connection to the inverter via WLAN

4 Product Overview
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 15
4 Product Overview
4.1 Product Description
A
E
C
B
D
Figure 2: Design of the product
Position Designation
A DC load-break switch
B Connection cap
Connection area with cable glands for connection to the utility grid and
the local network
C LEDs
The LEDs indicate the operating state of the product.

4 Product Overview SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-1916
Position Designation
D Label with QR Code for scanning via the SMA 360° App and easy con-
nection to the inverter's user interface via WLAN
E Type label
The type label clearly identifies the product. The type label must remain
permanently attached to the product. You will find the following informa-
tion on the type label:
• Device type (Model)
• Serial number (Serial No. or S/N)
• Date of manufacture
• Identification key (PIC) for registration in Sunny Portal
• Registration ID (RID) for registration in Sunny Portal
• Wi-Fi password (WPA2-PSK) for the direct connection to the user
interface of the product via Wi-Fi
• Device-specific characteristics
4.2 Symbols on the Product
Icon Explanation
Beware of a danger zone
This symbol indicates that the product must be additionally grounded if addi-
tional grounding or equipotential bonding is required at the installation site.
Beware of electrical voltage
The product operates at high voltages.
Beware of hot surface
The product can get hot during operation.
5 min
Danger to life due to high voltages in the inverter; observe a waiting time of 5
minutes.
High voltages that can cause lethal electric shocks are present in the live com-
ponents of the inverter.
Prior to performing any work on the inverter, disconnect it from all voltage
sources as described in this document.
Observe the documentations
Observe all documentations supplied with the product.

4 Product Overview
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 17
Icon Explanation
Inverter
Together with the green LED, this symbol indicates the operating state of the in-
verter.
Observe the documentations
Together with the red LED, this symbol indicates an error.
Data transmission
Together with the blue LED, this symbol indicates the status of the network con-
nection.
Grounding conductor
This symbol indicates the position for connecting a grounding conductor.
Alternating current
Direct current
The product has no galvanic isolation.
WEEE designation
Do not dispose of the product together with the household waste but in accor-
dance with the disposal regulations for electronic waste applicable at the in-
stallation site.
The product is suitable for outdoor installation.
Degree of protectionIP65
The product is protected against the penetration of dust and water that is di-
rected as a jet against the enclosure from all directions.
CE marking
The product complies with the requirements of the applicable EU directives.
UKCA marking
The product complies with the regulations of the applicable laws of England,
Wales and Scotland.
RoHS
RoHS labeling
The product complies with the requirements of the applicable EU directives.

4 Product Overview SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-1918
Icon Explanation
RCM (Regulatory Compliance Mark)
The product complies with the requirements of the applicable Australian stan-
dards.
ICASA
The product complies with the requirements of the South African standards for
telecommunication.
03931-16-03337
ANATEL
The product complies with the requirements of the Brazilian standards for
telecommunication.
Este equipamento opera em caráter secundário, isto é, não tem direito a pro-
teção contra interferência prejudicial, mesmo de estações do mesmo tipo, e
não pode causar interferência a sistemas operando em caráter primário.
The product complies with the Moroccan safety and EMC requirements for
electronic products.
4.3 Interfaces and Functions
The product is equipped with the following interfaces and functions:
User interface for configuration and monitoring
The product is equipped as standard with an integrated webserver, which provides a user interface
for configuring and monitoring the product.
Once the connection has been established to the smart device, use a terminal (e.g. smartphone,
tablet or laptop) to connect to the product's user interface using a web browser.
Smart Inverter Screen
The Smart Inverter Screen enables you to view the status display and to display the current power
and consumption on the user interface login page. This gives you an overview of the most important
product data without having to log into the user interface.
The Smart Inverter Screen is deactivated by default. The Smart Inverter Screen can be activated via
the user interface once the product has been commissioned.
SMASpeedwire
The product is equipped with SMASpeedwire as standard. SMASpeedwire is a type of
communication based on the Ethernet standard. SMASpeedwire is designed for a data transfer
rate of 100Mbps and enables optimum communication between Speedwire devices within
systems.
The products supports the encrypted system communication with SMA Speedwire Encrypted
Communication. In order to be able to use the Speedwire encryption in the system, all Speedwire
devices, except for the SMAEnergyMeter, must support the function SMA Speedwire Encrypted
Communication.

4 Product Overview
SMA Solar Technology AG
Operating manual SBxx-1VL-40-BE-en-19 19
SMA Webconnect
The product is equipped with a Webconnect function as standard. The Webconnect function
enables direct data transmission between the product and Internet portals SunnyPortal and
SunnyPlaces without any additional communication device and for a maximum of 4 products per
visualized system. In PV systems with more than 4 products, there is the option of establishing data
transmission between the products and SunnyPortal via the data logger (e.g.,
SMADataManager) or distributing the inverters over several systems. If there is an existing Wi-Fi
or Ethernet connection, you can directly access your visualized system via the web browser on your
smart device (e.g. smartphone, tablet or laptop).
Webconnect enables - for PV systems operated in Italy - the connection or disconnection of the
inverter to or from the utility grid and the specifying of the frequency limits to be used via
IEC61850-GOOSE messages.
WLAN connection to SMA 360° app
The product has a QR code. By scanning the QR Code attached to the product via the SMA 360°
app, access to the product is established via WLAN and the connection to the user interface is
made automatically.
WLAN
The product is equipped with a WLAN interface as standard. The inverter is delivered with the
WLAN interface activated as standard. If you do not want to use WLAN, you can deactivate the
WLAN interface.
In addition, the inverter has a WPS (WiFi Protected Setup) function. The WPS function connects the
inverter automatically with a smart device (e.g. smartphone, tablet or laptop). You can activate the
WPS function by tapping on the enclosure lid twice in quick succession. The open interface will then
be signalized via the rapid flashing of the blue LED on the inverter.
Limited function in the event of frost
The integrated WLAN interface of the product is only designed for temperatures down to
-20°C.
• Deactivate the WLAN interface at low temperatures (see Section8.6, page58).
Grid management services
The product is equipped with service functions for grid management.
Depending on the requirements of the grid operator, you can activate and configure the functions
(e.g. active power limitation) via operating parameters.
SMA ShadeFix
The inverter is equipped with the shade management system SMA ShadeFix. SMA ShadeFix uses
an intelligent MPP tracking system to determine the operating point with the highest output during
shading conditions. With SMA ShadeFix, inverters use the best possible energy supply from the PV
modules at all times to increase yields in shaded systems. SMA ShadeFix is enabled by default. The
time interval of SMA ShadeFix is usually six minutes. This means that the inverter determines the
optimum operating point every six minutes. Depending on the PV system or shading situation, it may
be useful to adjust the time interval.

4 Product Overview SMA Solar Technology AG
Operating manualSBxx-1VL-40-BE-en-1920
All-pole sensitive residual-current monitoring unit
The all-pole sensitive residual-current monitoring unit detects alternating and direct differential
currents. In single-phase and three-phase inverters, the integrated differential current sensor detects
the current difference between the neutral conductor and the line conductor(s). If the current
difference increases suddenly, the inverter disconnects from the utility grid.
Connection of the SMAEnergyMeter
If an SMAEnergyMeter is installed in the PV system, the inverter can receive data on the
household energy consumption directly from this.
SMA Smart Connected
SMA Smart Connected is the free monitoring of the product via the SMA SunnyPortal. Thanks to
SMA Smart Connected, the operator and qualified person will be informed automatically and
proactively about product events that occur.
SMA Smart Connected is activated during registration in SunnyPortal. In order to use SMA Smart
Connected, it is necessary that the product is permanently connected to SunnyPortal and the data
of the operator and qualified person is stored in SunnyPortal and up-to-date.
4.4 LED Signals
LED signal Explanation
Green LED and red LED
flash simultaneously (2 s on
and 2 s off)
No country data set set
Operation of the product is stopped because no country data set is
set. Once the configuration has been completed (for instance using
the installation assistant or via a communication product), the prod-
uct will start operation automatically.
The green LED is flashing
(twoseconds on and
twoseconds off)
Waiting for feed-in conditions
The conditions for feed-in operation are not yet met. As soon as the
conditions are met, the inverter will start feed-in operation.
The green LED flashes
quickly
Update of central processing unit
The central processing unit of the inverter is being updated.
The green LED is glowing Feed-in operation
The inverter feeds in with a power of at least 90%.
The green LED is pulsing Feed-in operation
The inverter is equipped with a dynamic power display via the green
LED. Depending on the power, the green LED pulses fast or slow. If
necessary, you can switch off the dynamic power display via the
green LED.
The green LED is off The inverter is not feeding into the utility grid.