Sunny Boy 2.0 Self Consumption Solar Inverter

Operating manual

SUNNY BOY 1.5 / 2.0 / 2.5

ENGLISH

SBxx-1VL-40-BE-en-19 | Version 1.9

Legal Provisions

SMA Solar Technology AG

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 +49 561 9522-0 Fax +49 561 9522 100 www.SMA.de E-mail: info@SMA.de Status: 1/26/2022 Copyright © 2021 SMA Solar Technology AG. All rights reserved.

2

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

Table of Contents

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 4.5.2

Circuitry Overview………………………………………………………………………. 23 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 6.4.2 6.4.3

Requirements for the DC Connection ……………………………………………. 37 Assembling the DC Connectors ……………………………………………………. 38 Connecting the PV Array……………………………………………………………… 40

Operating manual

SBxx-1VL-40-BE-en-19

3

Table of Contents

SMA Solar Technology AG

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 8.19.2 8.19.3

Activating Automatic Firmware Update ………………………………………… 66 Updating Firmware with Update File via the User Interface……………. 67 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

4

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

Table of Contents

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

Operating manual

SBxx-1VL-40-BE-en-19

5

1 Information on this Document

SMA Solar Technology AG

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.

6

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

1 Information on this Document

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- relevant

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 element
bold

Use
· Messages · Terminals · Elements on a user interface · Elements to be selected · Elements to be entered

Example
· Connect the insulated conductors to the terminals X703:1 to X703:6.
· Enter 10 in the field Minutes.

· Connects several elements to be · Go to Settings > Date.

selected

[Button] [Key]

· Button or key to be clicked on or · Select [Enter]. pressed down

· Placeholder for variable

· Parameter WCtlHz.Hz#

components (e.g., parameter

names)

1.7 Designations in the Document

Complete designation Sunny Boy

Designation in this document Inverter, product

Operating manual

SBxx-1VL-40-BE-en-19

7

1 Information on this Document

SMA Solar Technology AG

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 Technical Information and System Controller”

“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 configuration 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

8

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

2 Safety

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.

Operating manual

SBxx-1VL-40-BE-en-19

9

2 Safety

SMA Solar Technology AG

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.

10

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

2 Safety

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).

Operating manual

SBxx-1VL-40-BE-en-19

11

2 Safety

SMA Solar Technology AG

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.

12

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

2 Safety

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 gridconnection 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.

Operating manual

SBxx-1VL-40-BE-en-19

13

3 Scope of Delivery

SMA Solar Technology AG

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.

A

B

C

D

E

F

_

LN

G

H

I

J

K

Figure 1: Components included in the scope of delivery

Position A B C D E F G H I J K

Quantity 1 1 1 1 1 1 1 1 1 2 1

Designation Inverter
Connection cap
Clamping bracket
Cylindrical screw M5 x 16
Spring lock washer
Washer M5
Terminal block for the AC connection
Positive DC connector
Negative DC connector
Sealing plug
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

14

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
4 Product Overview 4.1 Product Description

4 Product Overview

D E
A

C B
Figure 2: Design of the product

Position A B
C

Designation DC load-break switch
Connection cap Connection area with cable glands for connection to the utility grid and the local network
LEDs The LEDs indicate the operating state of the product.

Operating manual

SBxx-1VL-40-BE-en-19

15

4 Product Overview

SMA Solar Technology AG

Position D
E

Designation
Label with QR Code for scanning via the SMA 360° App and easy connection to the inverter’s user interface via WLAN
Type label The type label clearly identifies the product. The type label must remain permanently attached to the product. You will find the following information 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 additional 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.

Danger to life due to high voltages in the inverter; observe a waiting time of 5
5 min
minutes. High voltages that can cause lethal electric shocks are present in the live components 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.

16

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

4 Product Overview

Icon

Explanation

Inverter
Together with the green LED, this symbol indicates the operating state of the inverter.

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 connection.

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 accordance with the disposal regulations for electronic waste applicable at the installation 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 directed 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 labeling

RoHS

The product complies with the requirements of the applicable EU directives.

Operating manual

SBxx-1VL-40-BE-en-19

17

4 Product Overview

SMA Solar Technology AG

Icon
03931-16-03337

Explanation
RCM (Regulatory Compliance Mark) The product complies with the requirements of the applicable Australian standards.
ICASA The product complies with the requirements of the South African standards for telecommunication.
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 proteção 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.

18

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

4 Product Overview

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.

Operating manual

SBxx-1VL-40-BE-en-19

19

4 Product Overview

SMA Solar Technology AG

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 product 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.

20

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

4 Product Overview

LED signal

Explanation

The red LED is glowing

Event occurred
If an event occurs, a distinct event message and the corresponding event number will be displayed in addition on the product user interface or in the communication product (e.g. SMA Data Manager).

The blue LED flashes slowly for approx. 1 minute

Communication connection is being established
The product is establishing a connection to a local network or is establishing a direct connection to a smart device via Ethernet (e.g. smartphone, tablet or laptop).

The blue LED flashes quickly WPS active for approx. two minutes The WPS function is active. (0.25 s on and 0.25 s off).

The blue LED is glowing

Communication active
There is an active connection with a local network or there is a direct connection via Ethernet with a smart end device (e.g. smartphone, tablet or laptop).

Operating manual

SBxx-1VL-40-BE-en-19

21

4 Product Overview

4.5 System Overview

UTILITY GRID

SUNNY PORTAL

SUNNY HOME MANAGER 2.0
SMA PV SYSTEM SMA
CHARGING SYSTEM SMA STORAGE SYSTEM

LOAD

SMA Solar Technology AG
Solar energy Alternating current Communication
CUSTOMER SYSTEM

Figure 3: Design of the system

22

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

4 Product Overview

4.5.1 Circuitry Overview
DISTRIBUTION BOARD

SUNNY HOME MANAGER 2.0

GRID-CONNECTION POINT

3

with energy meter of

the grid operator

3

PROTECTIVE DEVICES

max.

max.

with RCD and LSS

16 A

50 A

max.

32 A

max. 63 A

SUNNY BOY

SUNNY BOY STORAGE

3
SMA EV CHARGER

3
LOAD

3
UTILITY GRID

PV MODULE

BATTERY

VEHICLE

Figure 4: Circuitry overview (example)

DC+ cable DC­ cable Line conductor Neutral conductor Grounding conductor

Operating manual

SBxx-1VL-40-BE-en-19

23

4 Product Overview

4.5.2 Communication Overview

GRID OPERATOR

SMA APPs

SUNNY PORTAL

INTERNET

SMA Solar Technology AG
Public Internet Ethernet LAN Ripple control signal Digital signal AC CAN Radio

SUNNY BOY RIPPLE CONTROL
RECEIVER

ROUTER

SWITCH

SUNNY HOME MANAGER 2.0

VEHICLE

SMA EV CHARGER

SUNNY BOY STORAGE

BATTERY

Figure 5: Design of system communication

24

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

5 Mounting

5 Mounting
5.1 Requirements for Mounting
Requirements for the Mounting Location:
WARNING
Danger to life due to fire or explosion Despite careful construction, electrical devices can cause fires. This can result in death or serious injury.
· Do not mount the product in areas containing highly flammable materials or gases. · Do not mount the product in potentially explosive atmospheres.
Requirements: Do not mount the inverter on a pillar. A solid, flat support surface, e.g. concrete or masonry, must be available for mounting. The difference between the outer anchoring points must not exceed 5 mm. The mounting location must be inaccessible to children. The mounting location must be suitable for the weight and dimensions of the product (see Section 13, page 95). The mounting location must not be exposed to direct solar irradiation. If the product is exposed to direct solar irradiation, the exterior plastic parts might age prematurely and overheating might occur. When becoming too hot, the product reduces its power output to avoid overheating. The mounting location should be freely and safely accessible at all times without the need for any auxiliary equipment (such as scaffolding or lifting platforms). Non- fulfillment of these criteria may restrict servicing. The DC load-break switch of the product must always be freely accessible. All ambient conditions must be met (see Section 13, page 95). To ensure optimum operation, the ambient temperature should be between -25°C and +40°C.
Permitted and prohibited mounting positions: The product may only be mounted in a permitted position. This will ensure that no moisture can penetrate the product. The product should be mounted such that the LED signals can be read off without difficulty.

Operating manual

SBxx-1VL-40-BE-en-19

25

5 Mounting
15°

SMA Solar Technology AG

Figure 6: Permitted and prohibited mounting positions

Dimensions for mounting:

115

240

105

23

334

Figure 7: Position of the anchoring points(Dimensions in mm)
Recommended clearances: If you maintain the recommended clearances, adequate heat dissipation will be ensured. Thus, you will prevent power reduction due to excessive temperature.
Maintain the recommended clearances to walls as well as to other inverters or objects. If multiple products are mounted in areas with high ambient temperatures, increase the
clearances between the products and ensure sufficient fresh-air supply.

26

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

1755

320

380

530

265

310

320

365 260

5 Mounting 172
50

985

665

665

330

330

Figure 8: Recommended clearances(Dimensions in mm)
5.2 Mounting the product
Additionally required material (not included in the scope of delivery): · 2 stainless steel hexagon head wood screws (AF 10, diameter 6 mm), screw length must be suitable for the support surface and the weight of the product (fastening bracket thickness: 4 mm) · Where necessary, 2 screw anchors suitable for the support surface and the screws
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.
Procedure: 1. Mark the position of the drill holes. Align the markings horizontally. 2. Drill the holes. 3. Insert screw anchors into the drill holes if the support surface requires them. 4. Insert the screws until there is at least 6 mm clearance between the screw head and the support surface.

Operating manual

SBxx-1VL-40-BE-en-19

27

5 Mounting
5. Hang the product onto the screws using the metal brackets.

SMA Solar Technology AG

6. Tighten the screws hand-tight using a ratchet or box wrench. When doing this you can compensate for any misalignment of the drill holes by aligning the metal brackets accordingly.

7. Ensure that the product is securely in place.

NOTICE

Damage to the product due to sand, dust and moisture ingress if the DC inputs are not closed
The product is only properly sealed when all unused DC inputs are closed with DC connectors and sealing plugs. Sand, dust and moisture penetration can damage the product and impair its functionality.
· Seal all unused DC inputs using the DC connectors and sealing plugs as described in the following. When doing so, do not plug the sealing plugs directly into the DC inputs on the inverter.

9. For unused DC connectors, push down the clamping bracket and push the swivel nut up to the thread.
10. Insert the sealing plug into the DC connector.

28

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
11. Insert the DC connectors with sealing plugs into the corresponding DC inputs on the inverter.

5 Mounting

• click

The DC connectors snap into place. 12. Ensure that the DC connectors with sealing plugs are securely in place.

Operating manual

SBxx-1VL-40-BE-en-19

29

6 Electrical Connection

SMA Solar Technology AG

6 Electrical Connection

6.1 Overview of the Connection Area

AB

C

D

E

H

G

F

Figure 9: Connection areas and enclosure openings at the bottom of the inverter

Position A B C D E F G H

Designation Positive DC connector Negative DC connector RJ45 pin connector for the network cable Pin connector for the AC connector Connection of the grounding terminal for additional grounding Cable gland for the AC cable Cable gland with filler plug for the network cable Connection cap

6.2 AC Connection

6.2.1 Requirements for the AC Connection
AC cable requirements as follows: Conductor type: copper wire External diameter: 5 mm to 13 mm Conductor cross-section: 1.5 mm² to 4 mm² Insulation stripping length: 15 mm Sheath stripping length: 70 mm

30

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

6 Electrical Connection

The cable must be dimensioned in accordance with the local and national directives for the dimensioning of cables. The requirements for the minimum wire size derive from these directives. Examples of factors influencing cable dimensioning are: nominal AC current, type of cable, routing method, cable bundling, ambient temperature and maximum desired line losses (for calculation of line losses, see the design software “Sunny Design” from software version 2.0 at www.SMA-Solar.com).
Load-break switch and cable protection:
NOTICE
Damage to the inverter due to the use of screw-type fuses as load-break switches Screw-type fuses (e.g. DIAZED fuse or NEOZED fuse) are not load-break switches.
· Do not use screw-type fuses as load-break switches. · Use a load-break switch or circuit breaker as a load disconnection unit (for information and
design examples, see the Technical Information “Circuit Breaker” at www.SMA- Solar.com).
In PV systems with multiple inverters, protect each inverter with a separate circuit breaker. Make sure to observe the maximum permissible fuse protection (see Section 13 “Technical Data”, page 95). This will prevent residual voltage from being present at the corresponding cable after disconnection.
Loads installed between the inverter and the circuit breaker must be fused separately.
Residual-current monitoring unit: The inverter does not require an external residual-current device when operating. If local regulations require the use of a residual-current device, the following must be observed:
The inverter is compatible with type A and B residual-current devices that have a rated residual current of 30 mA or higher (information about the selection of a residual-current device see technical information “Criteria for Selecting a Residual-Current Device” at www.SMASolar.com). Each inverter in the system must be connected to the utility grid via a separate residual- current device.
Overvoltage category: The product can be used in grids of overvoltage category III or lower in accordance with IEC 60664-1. That means that the product can be permanently connected to the grid-connection point of a building. In case of installations with long outdoor cabling routes, additional measures to reduce overvoltage category IV to overvoltage category III are required (see the Technical Information “Overvoltage Protection” at www.SMA-Solar.com).

Operating manual

SBxx-1VL-40-BE-en-19

31

6 Electrical Connection

SMA Solar Technology AG

Grounding conductor monitoring:
The inverter is equipped with a grounding conductor monitoring device. This grounding conductor monitoring device detects when there is no grounding conductor connected and disconnects the inverter from the utility grid if this is the case. Depending on the installation site and grid configuration, it may be advisable to disable the grounding conductor monitoring. This can be necessary, for example, in a Delta IT system or other grid configurations if there is no neutral conductor present and you intend to install the inverter between two line conductors. If you are uncertain about this, contact your grid operator or SMA Solar Technology AG.
· Grounding conductor monitoring must be disabled after initial start-up depending on the grid configuration (see Section 8.14, page 64).
Safety in accordance with IEC 62109 when the grounding conductor monitoring is deactivated In order to guarantee safety in accordance with IEC 62109 when the grounding conductor monitoring is deactivated, you have to connect additional grounding:
· In order to guarantee safety in accordance with IEC 62109 when the grounding conductor monitoring is deactivated, you have to connect additional grounding (see Section 6.2.3, page 34): The additional grounding conductor must have the same crosssection as the connected grounding conductor at the connecting terminal plate for the AC cable. This prevents touch current if the grounding conductor at the connecting terminal plate for the AC cable fails.
Connection of additional grounding In some countries, additional grounding is generally required. In each case, observe the locally applicable regulations.
· If additional grounding is required, connect an additional grounding that has at least the same cross-section as the connected grounding conductor to the connecting terminal plate for the AC cable (see Section 6.2.3, page 34). This prevents touch current if the grounding conductor at the connecting terminal plate for the AC cable fails.
6.2.2 Connecting the Inverter to the Utility Grid

Requirements: Only the terminal block supplied may be used for the AC connection. The connection requirements of the grid operator must be met. The grid voltage must be within the permissible range. The exact operating range of the inverter is specified in the operating parameters.
Procedure: 1. Disconnect the AC circuit breaker and secure it against reconnection.

32

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
2. Unscrew the swivel nut from the cable gland for the AC connection at the connector cap.

6 Electrical Connection

3. Thread the swivel nut over the AC cable.

4. Thread the AC cable through the cable gland of the AC connection:
· If the external diameter of the cable is 5 mm to 7 mm, thread the AC cable through the cable gland directly.

· If the external diameter of the AC cable is

8 mm to 13 mm, first remove the inner sealing

ring from the cable gland and then thread the

AC cable through the cable gland. When

doing so, ensure that the outer sealing ring is positioned correctly in the cable gland.

1

2

3

4

5. Dismantle 70 mm of the AC cable. 6. Shorten L and N by 5 mm each. Thus, the grounding conductor will be released from the
terminal block last when tensile load is applied. 7. Strip 15 mm of the insulation of L, N and the grounding conductor.

Operating manual

SBxx-1VL-40-BE-en-19

33

6 Electrical Connection
8. Connect L, N and the grounding conductor to the terminal block for the AC connection in accordance with the labeling. When doing so, ensure that the conductors are plugged completely into the terminals up to the insulation. Tip: To release the conductors from the terminals, the terminals must be opened. To do this, stick a flat-blade screwdriver (blade width: 3 mm) as far as it can go into the rectangular opening behind the terminal.

SMA Solar Technology AG
LN

9. Ensure that all terminals are allocated to the correct conductors.
10. Make sure that all conductors are securely in place.
11. Plug the terminal block with the connected conductors for the AC connection into the slot in the inverter until the terminal block clicks into place.

LN
12. Ensure that the terminal block is securely in place by slightly pulling it.
6.2.3 Connecting Additional Grounding

If additional grounding or equipotential bonding is required locally, you can connect additional grounding to the product. This prevents touch current if the grounding conductor at the terminal for the AC cable fails. The required clamping bracket, the cylindrical screw M5x16, the washer and the spring lock washer are part of the scope of delivery of the inverter.
Cable requirements:
Use of fine-stranded conductors You can use an inflexible or a flexible, fine- stranded conductor.
· When using a fine-stranded conductor, it has to be double crimped by a ring terminal lug. Make sure that no insulated conductor is visible when pulling or bending. This will ensure sufficient strain relief by means of the ring terminal lug.
Grounding cable cross-section: max. 10 mm²
Procedure: 1. Strip off 12 mm of the grounding cable insulation. 2. Insert the screw through the spring lock washer, the clamping bracket and the washer.

34

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

6 Electrical Connection

3. Lightly screw the screw into the thread of the connection point for the additional grounding.
4. Guide the grounding cable between the washer and clamping bracket and tighten the screw (TX25) (torque: 6 Nm).

1

2

6.3 Connecting the Network Cables

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.
Additionally required material (not included in the scope of delivery): One network cable Where required: Field-assembly RJ45 connector for the network cable. SMA Solar Technology AG recommends the connector “MFP8 T568 A Cat.6A” from “Telegärtner”.
Network cable requirements: The cable length and quality affect the quality of the signal. Observe the following cable requirements:
Cable type: 100BaseTx Cable category: minimum CAT5e Plug type: RJ45 of Cat5, Cat5e or higher Shielding: SF/UTP, S/UTP, SF/FTP or S/FTP

Operating manual

SBxx-1VL-40-BE-en-19

35

6 Electrical Connection

SMA Solar Technology AG

Number of insulated conductor pairs and insulated conductor cross-section: at least 2 x 2 x 0.22 mm²
Maximum cable length between 2 nodes when using patch cables: 50 m Maximum cable length between 2 nodes when using installation cables: 100 m UV- resistant for outdoor use.
Procedure: 1. When using a self-assembly network cable, assemble the RJ45 connector and connect to the network cable (see connector documentation). 2. Remove the swivel nut from the cable gland for the network connection on the connection cap. 3. Thread the swivel nut over the network cable. 4. Press the cable support sleeve out of the cable gland. 5. Remove one filler plug from the cable support sleeve. 6. Route the network cable through an opening in the cable support sleeve.

7. Thread the network cable through the cable gland. 8. Insert the RJ45 plug of the network cable into the
network pin connector on the inverter until it snaps into place.
LN

9. Ensure that the RJ45 plug is securely in place by pulling slightly on the network cable.
10. Press the cable support sleeve back into the cable gland.

11. Screw the swivel nut hand-tight onto the cable gland.

36

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
12. Tighten the connection cap with the three screws (TX20, torque: 3.5 Nm).

6 Electrical Connection
LN

2 1 3
13. Screw the swivel nuts hand-tight onto the cable gland of the AC connection and the cable gland of the network cable.
14. If the inverter is installed outdoors, install overvoltage protection. 15. If you would like to establish a direct connection, connect the other end of the network cable
directly to the computer. 16. If you would like to integrate the inverter into a local network, connect the other end of the
network cable to the local network (e.g. via a router).
Also see:

Section 9 “Disconnecting the Inverter from Voltage Sources”, page 69
6.4 DC Connection
6.4.1 Requirements for the DC Connection
Requirements for the PV modules: All PV modules should be of the same type. All PV modules should be aligned and tilted identically. On the coldest day based on statistical records, the open-circuit voltage of the PV array must never exceed the maximum input voltage of the inverter. The same number of series-connected PV modules must be connected to each string. The maximum input current per string must be maintained and must not exceed the throughfault current of the DC connectors (see Section 13 “Technical Data”, page 95). The thresholds for the input voltage and the input current of the inverter must be adhered to (see Section 13 “Technical Data”, page 95). The positive connection cables of the PV modules must be equipped with positive DC connectors (see Section 6.4.2, page 38). The negative connection cables of the PV modules must be equipped with the negative DC connectors (see Section 6.4.2, page 38).

Operating manual

SBxx-1VL-40-BE-en-19

37

6 Electrical Connection

SMA Solar Technology AG

Use of Y adapters for parallel connection of strings The Y adapters must not be used to interrupt the DC circuit.
· Do not use the Y adapters in the immediate vicinity of the inverter. The adapters must not be visible or freely accessible.
· In order to interrupt the DC circuit, always disconnect the inverter as described in this document (see Section 9, page 69).
6.4.2 Assembling the DC Connectors

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.
For connection to the inverter, all PV module connection cables must be fitted with the DC connectors provided. Assemble the DC connectors as described in the following. The procedure is identical for both connectors (+ and -). The graphics for the procedure are shown for only the positive connector as an example. Pay attention to the correct polarity when assembling the DC connectors. The DC connectors are marked with the symbols “+” and “-“.

Figure 10: Negative (A) and positive (B) DC connectors
Cable requirements: External diameter: 5.5 mm to 8 mm Conductor cross-section: 2.5 mm² to 6 mm² Qty single wires: minimum 7 Nominal voltage: minimum 1000 V Using bootlace ferrules is not allowed.
Procedure: 1. Strip 12 mm of the cable insulation.

38

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
2. Insert the stripped cable into the DC connector up to the stop. When doing so, ensure that the stripped cable and the DC connector are of the same polarity.
3. Press the clamping bracket down until it audibly snaps into place.
The stranded wire can be seen inside the clamping bracket chamber.

6 Electrical Connection
+ +

4. If the stranded wire is not visible in the chamber, the cable is not correctly inserted and the connector must be reassembled. To do this, the cable must be removed from the connector.

· Release the clamping bracket. To do so, insert a screwdriver (blade width: 3.5 mm) into the clamping bracket and pry the clamping bracket open.

2 1

· Remove the cable and go back to step 2.

1
2

5. Push the swivel nut up to the thread and tighten (torque: 2 Nm).

Operating manual

SBxx-1VL-40-BE-en-19

39

6 Electrical Connection
6.4.3 Connecting the PV Array

SMA Solar Technology AG

NOTICE
Damage to the DC connectors due to the use of contact cleaner of other cleaning agents Some contact cleaners or other cleaning agents may contain substances that decompose the plastic of the DC connectors.
· Do not use contact cleaners or other cleaning agents for cleaning the DC connectors.
Procedure: 1. Ensure that the circuit breaker is switched off and that it cannot be reconnected. 2. If an external DC load-break switch is installed, disconnect the external DC load-break switch from all voltage sources. 3. Set the DC load-break switch of the inverter to position O.

4. Measure the PV array voltage. Ensure that the maximum input voltage of the inverter is adhered to and that there is no ground fault in the PV array.
5. Check whether the DC connectors have the correct polarity. If the DC connector is equipped with a DC cable of the wrong polarity, the DC connector must be reassembled. The DC cable must always have the same polarity as the DC connector.
6. Connect the assembled DC connectors to the inverter.
click

The DC connectors snap into place. 7. Ensure that all DC connectors are securely in place.

40

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
6.4.4 Disassembling the DC Connectors

6 Electrical Connection

To disassemble the DC connectors for connection to the pv modules (e.g. due to faulty assembly), proceed as follows.
DANGER
Danger to life due to electric shock when touching exposed DC conductors or DC plug contacts if the DC connectors are damaged or loose The DC connectors can break or become damaged, become free of the DC cables, or no longer be connected correctly if the DC connectors are released and disconnected incorrectly. This can result in the DC conductors or DC plug contacts being exposed. Touching live DC conductors or DC plug connectors will result in death or serious injury due to electric shock.
· Wear insulated gloves and use insulated tools when working on the DC connectors. · Ensure that the DC connectors are in perfect condition and that none of the DC conductors
or DC plug contacts are exposed. · Carefully release and remove the DC connectors as described in the following.

Procedure:

1. Release and remove the DC connectors. To do so,

insert a flat-blade screwdriver or an angled

screwdriver (blade width: 3.5 mm) into one of the

side slots and pull the DC connectors out. When

doing so, do not lever the DC connectors out, but

1

insert the tool into one of the side slots only to

release the locking mechanism, and do not pull on

the cable.

2

2. Remove the DC connector swivel nut.

Operating manual

SBxx-1VL-40-BE-en-19

41

6 Electrical Connection
3. Unlock the DC connector. To do this, insert a flatblade screwdriver (blade width: 3.5 mm) into the side catch mechanism and pry the catch mechanism open.
4. Carefully pull the DC connector apart. 5. Release the clamping bracket. To do so, insert a flat-
blade screwdriver (blade width: 3.5 mm) into the clamping bracket and pry the clamping bracket open.
6. Remove the cable.

SMA Solar Technology AG

3

2

1

2 1

42

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

7 Commissioning

7 Commissioning 7.1 Commissioning Procedure

This section describes the commissioning procedure and gives an overview of the steps you must perform in the prescribed order.
Commissioning an inverter that is captured in a communication device
When the inverter is captured in a communication device, the communication device (e.g. SMA Data Manager) is the unit for configuring the total system. The configuration is transferred to all inverters in the system. The system password assigned via the communication device is also the password for the user interface of the inverter.
· Commission the inverter (see Section 7.2, page 44).
· The initial configuration of the inverter is made via the communication device. The configuration is transferred to the inverter and the settings of the inverter are overwritten.
· Deactivate the Webconnect function of the inverter via the Sunny Portal. This prevents unnecessary connection attempts of the inverter with Sunny Portal.

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.

Procedure

See

1. Commission the inverter.

Section 7.2, page 44

2. Establish a connection to the user interface of the inverter. Section 8.1, page 48 There are various connection options to choose from for this: · Direct connection via WLAN · Direct connection via Ethernet · Connection via WLAN in the local network · Connection via Ethernet in the local network

3. Log into the user interface.

Section 8.2, page 52

Operating manual

SBxx-1VL-40-BE-en-19

43

7 Commissioning

SMA Solar Technology AG

Procedure

See

4. Select the inverter configuration option. Please note that Section 7.3, page 45 the SMA Grid Guard code for changing the grid-relevant parameters must be available after completion of the first ten feed-in hours or installation assistant. You can request the SMA Grid Guard code via the Online Service Center.

5. Configure the product and set country data set. Then the Section 8.10, page 61 product will begin operation.

6. For PV systems in Italy or Dubai: Start the self-test.

Section 7.4, page 47

7. Make further inverter settings as needed.

Section 8, page 48

7.2 Commissioning the Inverter

Requirements: The AC circuit breaker must be correctly rated and mounted. The product must be correctly mounted. All cables must be correctly connected.
Procedure: 1. Switch on the AC circuit breaker. 2. Turn the DC load-break switch of the inverter to position I.

All 3 LEDs light up. The start-up phase begins.
All 3 LEDs go out again after approximately 90 seconds.
3. If the green and red LEDs flash simultaneously during initial commissioning, operation is stopped because no country data set has been set yet. For the inverter to begin operation, the configuration must be completed and a country data set must be set.
4. If the green LED is still flashing, the conditions for activating feed-in operation are not yet met. As soon as the conditions for feed-in operation are met, the inverter starts with feed-in operation and, depending on the available power, the green LED will light up continuously or it will pulse.
5. If the red LED lights up, an event has occurred. Find out which event has occurred and, if necessary, initiate countermeasures.

44

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

7 Commissioning

Also see: > Section 11 “Troubleshooting”, page 72
7.3 Selecting a configuration option

After you have assigned the password for the user groups Installer and User and logged in as Installer, the Configuring the Inverter page opens.

A B
E

D

C

Figure 11: Layout of the Configuring the Inverter page

Position A

Designation Device information

B

User information

C

Skip configuration

D

Checkbox

E

Configuration options

Description
Provides the following information: · Device name · Inverter serial number · Inverter firmware version
Provides brief information on the listed configuration options
Offers the option of skipping the inverter configuration and go directly to the user interface (not recommended)
Allows you to choose not to have the displayed page displayed again when the user interface is called up again
Provides a selection of the various configuration options

Operating manual

SBxx-1VL-40-BE-en-19

45

7 Commissioning

SMA Solar Technology AG

Configuration options: On the Configuring the Inverter page, different configuration options are available to choose from. Select one of the options and proceed for the selected option as described below. SMA Solar Technology AG recommends carrying out the configuration with the installation assistant. This way, you ensure that all relevant parameters are set for optimal inverter operation.
· Adoption of configuration from a file · Configuration with the installation assistant (recommended) · Manual configuration
Accepting the settings Saving the made settings is indicated by an hourglass symbol on the user interface. If the DC voltage is sufficient, the data is transferred directly to the inverter and accepted. If the DC voltage is too low (e. g. in the evening), the settings are saved, but they cannot be directly transferred to or accepted by the inverter. As long as the inverter has not yet received and accepted the settings, the hourglass symbol will continue to be displayed on the user interface. The settings will be accepted when there is sufficient DC voltage applied and the inverter restarts. As soon as the hourglass symbol appears on the user interface, the settings have been saved. The settings will not be lost. You can log off of the user interface and leave the system.
Adopting the Configuration from a File You can adopt the inverter configuration from a file. To do this, there must be an inverter configuration saved to a file.
Procedure: 1. Select the configuration option Adopting configuration from a file. 2. Select [Browse…] and select the desired file. 3. Select [Import file].
Configuring the Installation Assistant (Recommended)
Procedure: 1. Select the configuration option Configuration with Installation Assistant. The installation assistant will open. 2. Follow the installation assistant steps and make the settings appropriate for your system. 3. For every setting made in a step, select [Save and next]. In the last step, all made settings are listed in a summary. 4. To correct settings you made, select [Back], navigate to the desired step, correct settings and select [Save and continue]. 5. Once all settings are correct, select [Next] in the summary. 6. To save the settings to a file, select [Export a summary] and save the file on your smart device. 7. To export all parameters and their settings, select [Export all parameters]. This exports all parameters and their settings into an HTML file. The start page of the user interface opens.

46

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

7 Commissioning

Manual configuration You can configure the inverter manually by setting the desired parameters.
Procedure: 1. Select the configuration option Manual Configuration. The Device Parameters menu on the user interface will open and all available parameter groups of the inverter will be displayed. 2. Select [Edit parameters]. 3. Select the desired parameter group. All available parameters of the parameter group will be displayed. 4. Set the desired parameters. 5. Select [Save all]. The inverter parameters are set.
7.4 Starting the Self-Test (for Italy and Dubai)

The self-test is only required for inverters that are to be commissioned in Italy or Dubai. The Italian standard CEI 0-21 and the DEWA (Dubai Electricity and Water Authority) stipulate that all inverters that feed into the utility grid are equipped with a self-test function. During the self-test, the inverter will consecutively check the reaction times for overvoltage, undervoltage, maximum frequency and minimum frequency. The self-test changes the upper and lower disconnection values for each protective function on a linear basis for frequency monitoring and voltage monitoring. As soon as the measured value exceeds the permitted disconnection threshold, the inverter disconnects from the utility grid. In this way, the inverter determines the reaction time and checks itself. After the self-test has been completed, the inverter automatically switches back to feed-in operation, resets the original disconnection conditions and connects to the utility grid. The test takes approximately three minutes.
Requirements: The country data set of the inverter must be set to CEI 0-21 internal or DEWA 2016 internal.
Procedure: 1. Select the menu Device Configuration. 2. Select [Settings]. 3. Select [Starting the Self-Test] in the subsequent context menu. 4. Follow the instructions appearing in the dialog and save the report of the self-test where necessary.

Operating manual

SBxx-1VL-40-BE-en-19

47

8 Operation

SMA Solar Technology AG

8 Operation
8.1 Establishing a connection to the user interface
8.1.1 Establishing a Direct Connection via Ethernet
Requirements: The product must be commissioned. A smart device (e.g. laptop) with an Ethernet interface must be available. The product must be connected directly to the smart device. The respective latest version of one of the following web browsers must be installed on the smart device: Chrome, Edge, Firefox or Safari. The installer’s SMA Grid Guard code must be available to change network-relevant settings after the first 10 hours of feed-in operation, or after completing the installation assistant. You can request the SMA Grid Guard code via the Online Service Center.
IP address of the inverter · Standard inverter IP address for the direct connection via Ethernet: 169.254.12.3
Procedure: 1. Open the web browser of your smart device and enter the IP address 169.254.12.3 in the address bar. 2. Press the enter key. 3. Web browser signals a security vulnerability After the IP address has been entered, a message might appear indicating that the connection to the user interface of the product is not secure. SMA Solar Technology AG guarantees the security of the user interface. · Continue loading the user interface. The login page of the user interface opens.
8.1.2 Establishing a direct connection via WLAN
You have several options to connect the product to a smart device. The procedure can be different depending on the devices. If the procedures described do not apply to your device, establish the direct connection via Wi- Fi as described in the manual of your device. The following connection options ar available:
· Connection to SMA 360° App · Connection with WPS · Connection with Wi-Fi network search
Requirements: The product must be commissioned. A smart device (e.g. smartphone, tablet or laptop) must be available.

48

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

8 Operation

The respective latest version of one of the following web browsers must be installed on the smart device: Chrome, Edge, Firefox or Safari.
JavaScript must be enabled in the web browser of the smart device. The installer’s SMA Grid Guard code must be available to change network-relevant settings
after the first 10 hours of feed-in operation, or after completing the installation assistant. You can request the SMA Grid Guard code via the Online Service Center.
SSID, IP address and WLAN password · SSID in WLAN: SMA[serial number] (e.g. SMA0123456789) · Device-specific WLAN password: see WPA2-PSK on the type label of the product or the rear side of the manual included in delivery · Standard access address for a direct connection via WLAN outside of a local network: http://smalogin.net or 192.168.12.3
Importing and exporting files with smart devices having an iOS operating system is not possible For technical reasons, importing and exporting files (e.g., importing an inverter configuration, saving the current inverter configuration or exporting events and parameters) is not possible with smart devices having an iOS operating system.
· Use a smart device that does not have an iOS operating system for importing and exporting files.
Connection to SMA 360° App
Requirements: A smart device with camera (e.g. smartphone or tablet) must be available. The SMA 360° App must be installed on the smart device. An user account for Sunny Portal must already exist.
Procedure: 1. Open the SMA 360° App and login with the Sunny Portal account details. 2. Select QR-Code Scan in the menu. 3. Scan the QR Code on you product via the SMA 360° App. The smart device automatically connects to the product. The web browser of your smart device opens and the login page of the user interface is displayed. 4. If the web browser of the smart end device does not open automatically and the login page of the user interface is not displayed, open the web browser and enter http://smalogin.net in the address bar.
Connection with WPS
Requirement: The smart device must have a WPS function.

Operating manual

SBxx-1VL-40-BE-en-19

49

8 Operation

SMA Solar Technology AG

Procedure: 1. Enable the WPS function on the inverter. To do this, tap on the enclosure lid of the inverter twice. The blue LED flashes quickly for approx. two minutes. The WPS function is active during this time. 2. Enable the WPS function on your smart device. 3. Open the web browser of your smart end device and enter http://smalogin.net in the address bar.
Connection with Wi-Fi network search 1. Search for Wi-Fi networks with your smart device. 2. Select the SSID of the product SMA[serial number] in the list with the detected Wi-Fi networks. 3. Enter the device-specific Wi-Fi password (see WPA2-PSK on the type label of the product or the rear side of the manual included in delivery). 4. Open the web browser of your smart end device and enter http://smalogin.net in the address bar. The login page of the user interface is displayed. 5. If the login page of the user interface does not open, enter the IP address 192.168.12.3 or, if your smart device supports mDNS services, SMA[serial number].local or http:// SMA[serial number] in the address bar of the web browser.
8.1.3 Establishing a Connection via Ethernet in the local network
New IP address for connecting with a local network If the product is connected to a local network (e.g. via a router), the product will receive a new IP address. Depending on the type of configuration, the new IP address will be assigned automatically by the DHCP server (router) or manually by you. Upon completion of the configuration, the product can only be reached via the following access addresses:
· Generally applicable access address: IP address manually assigned or assigned by the DHCP server (router) (identification via network scanner software or network configuration of the router).
· Access address for Apple and Linux systems: SMA[serial number].local (e.g. SMA0123456789.local)
· Access address for Windows and Android systems: http://SMA[serial number] (e.g., http://SMA0123456789)
Requirements: The product must be connected to the local network via a network cable (e.g. via a router). The product must be integrated into the local network. Tip: There are various methods of integrating the product into the local network with the aid of the installation assistant. A smart device (e.g. smartphone, tablet or laptop) must be available.

50

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

8 Operation

The smart device must be in the same local network as the product. The respective latest version of one of the following web browsers must be installed on the
smart device: Chrome, Edge, Firefox or Safari. The installer’s SMA Grid Guard code must be available to change network-relevant settings
after the first 10 hours of feed-in operation, or after completing the installation assistant. You can request the SMA Grid Guard code via the Online Service Center.
Procedure: 1. Open the web browser of your smart device. Enter the IP address of the product in the address bar of the web browser. Then press Enter key.
2. Web browser signals a security vulnerability After the IP address has been entered, a message might appear indicating that the connection to the user interface of the product is not secure. SMA Solar Technology AG guarantees the security of the user interface. · Continue loading the user interface.
The login page of the user interface opens.
8.1.4 Establishing a Connection via WLAN in the Local Network
New IP address for connecting with a local network If the product is connected to a local network (e.g. via a router), the product will receive a new IP address. Depending on the type of configuration, the new IP address will be assigned automatically by the DHCP server (router) or manually by you. Upon completion of the configuration, the product can only be reached via the following access addresses:
· Generally applicable access address: IP address manually assigned or assigned by the DHCP server (router) (identification via network scanner software or network configuration of the router).
· Access address for Apple and Linux systems: SMA[serial number].local (e.g. SMA0123456789.local)
· Access address for Windows and Android systems: http://SMA[serial number] (e.g., http://SMA0123456789)
Requirements: The product must be commissioned. The product must be integrated into the local network. Tip: There are various methods of integrating the product into the local network with the aid of the installation assistant. A smart device (e.g. smartphone, tablet or laptop) must be available. The smart device must be in the same local network as the product. The respective latest version of one of the following web browsers must be installed on the smart device: Chrome, Edge, Firefox or Safari. The installer’s SMA Grid Guard code must be available to change network-relevant settings after the first 10 hours of feed-in operation, or after completing the installation assistant. You can request the SMA Grid Guard code via the Online Service Center.

Operating manual

SBxx-1VL-40-BE-en-19

51

8 Operation

SMA Solar Technology AG

Importing and exporting files with smart devices having an iOS operating system is not possible For technical reasons, importing and exporting files (e.g., importing an inverter configuration, saving the current inverter configuration or exporting events and parameters) is not possible with smart devices having an iOS operating system.
· Use a smart device that does not have an iOS operating system for importing and exporting files.
Procedure: · Enter the IP address of the product in the address bar of the web browser. The login page of the user interface opens.
8.2 Logging In and Out of the User Interface
After a connection to the user interface of the inverter has been established, the login page opens. Log onto the user interface as described below.
Log in as Installer or User for the First Time
Password assignment for user and installer The passwords for the user groups Installer and User must be assigned when accessing the user interface for the first time. If the inverter was registered in a communication device (e.g., SMA Data Manager) and the system password was assigned, the system password is also the installer password. In this case, only the user password must be assigned.
· If you as a specialist assign the user password, only pass the password on to persons to access the inverter data via the user interface.
· If you as a user assign the installer password, only pass the password on to persons to receive access to the system.
Installer password for inverters registered in a communication device or in Sunny Portal To be able to register the inverter in a communication device (e.g., SMA Data Manager) or in a Sunny Portal system, the password for the user group Installer must match the system password. If you assign a password for the user group Installer via the user interface of the inverter, the same password must also be used as the system password.
· Assign a uniform installer password to all SMA devices in the system.
Procedure: 1. In the drop-down list Language, select the desired language. 2. In the Password field, enter a password for the User user group. 3. In the Repeat password field, enter the password again. 4. Click on Save. 5. In the New password field, enter a password for the Installer user group. Assign a uniform password to all SMA devices to be registered in a system. The installer password is also the system password.

52

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
6. In the Repeat password field, enter the password again. 7. Click on Save and log in. The Configuring the Inverter page opens.
Log in as the User or Installer 1. In the drop-down list Language, select the desired language. 2. In the User group drop-down list, select the entry Installer or User. 3. Enter the password in the field Password. 4. Select Login. The start page of the user interface opens.
Log Out as the User or Installer 1. On the right-hand side of the menu bar, select the menu User Settings. 2. In the subsequent context menu, select [Logout]. The login page of the user interface opens. The logout was successful.

8 Operation

Operating manual

SBxx-1VL-40-BE-en-19

53

8 Operation

SMA Solar Technology AG

8.3 Start Page Design of the User Interface

A

B

C

F

E
D Figure 12: Design of the user interface’s home page (example)

54

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

Position A

Designation Menu

B

User settings

C

Help

8 Operation
Description
Provides the following functions: · Home Opens the user interface homepage · Instantaneous values Current measured values of the inverter · Device Parameters The various operating parameters of the inverter can be viewed and configured here depending on the user group. · Events All events that have occurred in the selected time period are displayed here. The event types are Information, Warning and Error. Currently existing events of the types Error and Warning will be additionally displayed in the Device status viewlet. However, only the higher-priority event is displayed. If, for example, there is a Warning and an Error present at the same time, only the Error will be displayed. · Device configuration Various settings for the inverter can be made here. The selection available is dependent on which user group you are logged in as and the operating system of the device with which the user interface has been called up. · Data You will find all data that is saved in the internal memory of the inverter or on an external storage medium on this page.
Provides the following functions, depending on the user group logged in:
· Starting the installation assistant · SMA Grid Guard login · Logout
Provides the following functions: · Displaying information on Open Source licenses used · Link to the website of SMA Solar Technology AG

Operating manual

SBxx-1VL-40-BE-en-19

55

8 Operation

SMA Solar Technology AG

Position D
E F

Designation

Description

Status bar

Displays the following information: · Inverter serial number · Inverter firmware version · IP address of the inverter within the local network and/or IP address of the inverter during WLAN connection · With WLAN connection: Signal strength of WLAN connection · User group logged in · Date and device time of the inverter

Current power and cur- Temporal progression of the PV power and the power

rent consumption

consumption of the household over the selected time pe-

riod. Please note, the power consumption will only be dis-

played if an energy meter is installed in the PV system.

Status display

The various areas display information on the current status of the PV system.
· Device status Displays whether the inverter is currently in a faultfree operating state or whether there is an Error or Warning present.
· Current power Displays the power currently being generated by the inverter.
· Yield Displays the energy yield of the inverter.
· Grid supply Displays the energy supply from the utility grid.
· Power at the grid-connection point Indicates which power is currently fed in or obtained at the grid-connection point.

8.4 Starting the Installation Assistant

The installation assistant leads you step-by-step through the steps necessary for the initial configuration of the inverter.

56

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG Layout of the installation assistant
A

8 Operation

C

B

Figure 13: Layout of the installation assistant (example)

Position A
B C

Designation Configuration steps
User information Configuration field

Description
Overview of the installation assistant steps. The number of steps depends on the type of device and the additionally installed modules. The current step is highlighted in blue.
Information about the current configuration step and the setting options of the configuration step.
You can make settings in this field.

Requirement: The SMA Grid Guard code must be available to change network- relevant parameters after the first 10 hours of feed-in operation, or after completing the installation assistant. You can request the SMA Grid Guard code via the Online Service Center.
Procedure: 1. Open the user interface (see Section 8.1, page 48). 2. Log in as Installer. 3. Select the menu User Settings (see Section 8.3, page 54) on the start page of the user interface. 4. In the context menu, select [Starting the installation assistant]. The installation assistant will open.

8.5 Activate WPS Function
The WPS function can be used for different purposes: · Automatic connection to a network (e.g. via router) · Direct connection between the product and a smart device
Depending on the intended application of the WPS function, the procedure for activation will vary.

Operating manual

SBxx-1VL-40-BE-en-19

57

8 Operation

SMA Solar Technology AG

Activating WPS function for automatic connection to a network
Requirements: WLAN must be activated in the product. WPS must be activated on the router.
Procedure: 1. Open the user interface (see Section 8.1, page 48). 2. Log in as Installer. 3. Start the installation assistant (see Section 8.4, page 56). 4. Select Network configuration. 5. Select WPS for WLAN network button in the WLAN tab. 6. Select Activate WPS. 7. Select Save and next and exit the installation assistant. The WPS function is activated and the automatic connection to the network can be established.
Activating the WPS function for direct connection to the smart device. · Enable WPS function on the product. To do this, tap on the enclosure lid of the product twice. The blue LED flashes quickly for approx. 2 minutes. The WPS function is active during this time.
8.6 Switching WLAN On and Off
The inverter is equipped with an activated WLAN interface as standard. If you do not want to use WLAN, you can switch the WLAN function off and switch it on again whenever needed. In doing so, you can switch the WLAN direct connection and the WLAN connection in the local network on independently of each other.
Switching on the WLAN function only possible via Ethernet connection If you switch off both the WLAN function for the direct connection and for the connection in the local network, access to the inverter user interface and therefore reactivation of the WLAN interface is only possible via an Ethernet connection.
The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).
Switching WLAN Off If you would like to switch the WLAN function off completely, you must switch off both the direct connection and the connection in the local network.
Procedure: · To switch off the direct connection in the parameter group PV system communication > WLAN, select the parameter Soft-access-point is turned on and set this to No. · To switch off the connection in the local network in the parameter group PV system communication > WLAN, select the parameter WLAN is turned on and set this to No.

58

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

8 Operation

Switching WLAN On If you have switched the WLAN function for direct connection or for connection in the local network off, you can switch the WLAN function back on in accordance with the following procedure.
Requirement: If the WLAN function was previously switched off completely, the inverter must be connected to a computer or router via Ethernet.
Procedure: · To switch on the WLAN direct connection, in the parameter group PV system communication > WLAN, select the parameter Soft-access-point is turned on and set this to Yes. · To switch on the WLAN connection in the local network, in the parameter group System communication > WLAN, select the parameter WLAN is turned on and set this to Yes.
8.7 Switching the Dynamic Power Display Off
As standard, the product signals its power dynamically via the pulsing of the green LED. When doing so, the LED flashes on and off uniformly or is permanently lit at full power. The various gradations are related here to the set active power limit of the product. If this display is not desired, switch this function off in accordance with the following procedure. Once this has been done, the green LED is lit permanently to signalize feed-in operation. The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).
Procedure: · In the parameter group Device > Operation, select the parameter Dynamic power display via green LED and set this to Off.
8.8 Changing the Password
The password for the inverter can be changed for both user groups. Furthermore, the user group Installer can change the password for the user group User as well as its own password.
PV systems registered in a communication product With PV systems that are registered in a communication product (e.g. Sunny Portal, Sunny Home Manager), you can also assign a new password for the user group Installer via the communication product. The password for the user group Installer is also the system password. If you assign a password for the user group Installer via the user interface of the inverter that does not correspond to the system password in the communication product, the inverter can no longer be reached by the communication product.
· Ensure that the password for the user group Installer is the same as the system password in the communication product.
Procedure: 1. Activate the user interface (see Section 8.1, page 48). 2. Log into the user interface (see Section 8.2, page 52).

Operating manual

SBxx-1VL-40-BE-en-19

59

8 Operation

SMA Solar Technology AG

3. Call up the menu Device Parameters. 4. Select [Edit parameters]. 5. In the parameter group User Rights > Access Control change the password of the desired
user group. 6. Select [Save all] to save the changes.
8.9 Changing Operating Parameters
The operating parameters of the inverter are set to certain values by default. You can change the operating parameters to optimize the performance of the inverter. This section describes the basic procedure for changing operating parameters. Always change operating parameters as described in this section. Some function-sensitive parameters can only be viewed by qualified persons and can only be changed by qualified persons by entering the personal SMA Grid Guard code. You can request the SMA Grid Guard code via the Online Service Center.
No configuration via Sunny Explorer Sunny Explorer does not support the configuration of inverters with their own user interface. The inverter can be detected via Sunny Explorer, however it is expressly not recommended to use Sunny Explorer to configure this inverter. SMA Solar Technology AG does not accept liability for missing or incorrect data and possibly resulting yield losses.
· Use the user interface for the configuration of the inverter.
Requirements: Changes to grid-relevant parameters must be approved by the responsible grid operator.
Procedure: 1. Open the user interface (see Section 8.1, page 48). 2. Log into the user interface (see Section 8.2, page 52). 3. Call up the menu Device parameters. 4. Click on [Edit parameters]. 5. Log in using the SMA Grid Guard code to change those parameters designated by a lock (only for installers): · Select the menu User settings (see Section 8.3, page 54). · In the subsequent context menu, select [SMA Grid Guard login]. · Enter the SMA Grid Guard code and select [Login]. 6. Expand the parameter group that contains the parameter which is to be configured. 7. Change the required parameters. 8. Select [Save all] to save the changes. The parameters are set.

60

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

8 Operation

Accepting the settings Saving the made settings is indicated by an hourglass symbol on the user interface. If the DC voltage is sufficient, the data is transferred directly to the inverter and accepted. If the DC voltage is too low (e. g. in the evening), the settings are saved, but they cannot be directly transferred to or accepted by the inverter. As long as the inverter has not yet received and accepted the settings, the hourglass symbol will continue to be displayed on the user interface. The settings will be accepted when there is sufficient DC voltage applied and the inverter restarts. As soon as the hourglass symbol appears on the user interface, the settings have been saved. The settings will not be lost. You can log off of the user interface and leave the system.
8.10 Configuring the Country Data Set

For the product to begin operation, 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). As long as no country data set is set, operation of the product will remain stopped. This state is signaled by the green and red LEDs flashing simultaneously. Once configuration of the product is completed, the product will start operating automatically. By default, the inverter is set to a universally valid country data set. You must adjust the country data set for the installation site.
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.
Change to the names and units of grid parameters to comply with the gridconnection 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.
The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).
Procedure:
· In the parameter group Grid monitoring > Grid monitoring select the parameter Set country standard and set the required country data set.

Operating manual

SBxx-1VL-40-BE-en-19

61

8 Operation

SMA Solar Technology AG

8.11 Configuring the Active Power Mode

Starting the installation assistant 1. Open the user interface (see Section 8.1, page 48). 2. Log in as Installer. 3. Start the installation assistant (see Section 8.4, page 56). 4. Select [Save and continue] after each step up until the step Grid management service. 5. Make the settings as described in the following.
Setting the connected line conductors · In the tab Active power mode, select the line conductor to which the inverter is connected from the drop-down list Connected line conductors.
Make the settings for systems with external setpoint 1. Set theGrid connection point regulation to [Off]. 2. In the tab Active power mode set the switch Active power setpoint to [On]. 3. In the drop-down list Operating mode active power setpoint, select the entry External setpoint. 4. In the drop-down list Fallback behavior, select the entry Apply fallback values. 5. In the field Fallback value of the maximum active power enter the value to which the inverter is to limit its nominal power in case of a communication failure to the higher control unit at the end of the timeout time. 6. In the field Timeout, enter the time that the inverter is to wait before it limits its nominal power to the set fallback value. 7. If, in the event of a 0% or 0 W specification, the inverter is not permitted to feed small amounts of active power into the utility grid, select the entry Yes in the drop-down list Grid disconnection for 0% active power setpoint. This ensures that in the event of a 0% or 0 W specification, the inverter disconnects from the utility grid and does not feed in active power.
Make the settings for systems with manual setpoint 1. In the tab Active power mode set the switch Grid connection point regulation to [On]. 2. Enter the total power of the PV array in the field Nominal system power. 3. In the drop- down list Operating mode active power setting, select whether active power limitation is to be performed via a fixed specification in percent or in watts. 4. In the field Set active power limit, enter the value to which the active power at the point of interconnection is to be limited. The value must be set to 0 for zero active power. 5. Set the Active power setpoint to [On]. 6. Select the entry Manual setpoint in % or Manual setpoint in W for manual specification and enter the respective setpoint value. 7. If the inverter itself is to control active power at the point of interconnection, perform the following steps:

62

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

8 Operation

· In the drop-down list Operating mode active power setting, select the entry External setting.
· In the drop-down list Fallback behavior, select the entry Apply fallback values. · In the drop-down list Grid disconnection for active power setpoint of 0% select the
entry No.
8.12 Configuring the Modbus Function

The Modbus interface is deactivated by default and the communication ports 502 set. In order to access SMA invertes with SMA Modbus® or SunSpec® Modbus®, the Modbus interface must be activated. After activating the interface, the communication ports of both IP protocols can be changed. For information on commissioning and configuration of the Modbus interface, see the technical information “SMA and SunSpec Modbus® Interface” at www.SMA-Solar.com. For information on which Modbus registers are supported, see the technical information “Modbus® parameters and measured values” at www.SMA-Solar.com.
Measures for data security during activated Modbus interface If you activate the Modbus interface, there is a risk that unauthorized users may access and manipulate the data or devices in your PV system. To ensure data security, take appropriate protective measures such as:
· Set up a firewall. · Close unnecessary network ports. · Only enable remote access via VPN tunnel. · Do not set up port forwarding at the communication port in use. · In order to deactivate the Modbus interface, reset the inverter to the default settings or
deactivate the activated parameter again.
Procedure: · Activate the Modbus interface and adjust the communication ports if necessary (see the technical information “SMA and SunSpec Modbus® Interface” at www.SMA-Solar.com).
8.13 Activating the Receipt of Control Signals (Only for Italy)

In order for PV systems in Italy to receive control commands from the grid operator, set the following parameters.
The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).

Operating manual

SBxx-1VL-40-BE-en-19

63

8 Operation

SMA Solar Technology AG

Parameter

Value/range

Application ID

0 to 16384

GOOSE-Mac address 01:0C:CD:01:00:00 to 01:0C:CD:01:02:00

Resolution 1 1

Default 16384 01:0C:CD:01:00:00

Procedure:
1. Select the parameter group External communication > IEC 61850 configuration.
2. In the field Application ID, enter the application ID of the grid operator gateway. You will receive this value from your grid operator. You can enter a value between 0 and 16384. The value 16384 indicates “deactivated”.
3. In the field GOOSE-Mac address, enter the MAC address of the grid operator gateway from which the inverter is to receive the control commands. You will receive this value from your grid operator.
The receipt of control signals from the grid operator is activated.

8.14 Deactivating Grounding Conductor Monitoring

If the inverter is to be installed in an IT network or another grid configuration in which deactivation of the grounding conductor monitoring is required, deactivate the grounding conductor monitoring as follows. The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).
Procedure: · In the parameter group Grid monitoring > Grid monitoring > Country standard set the parameter PE connection monitoring to Off.
8.15 Configuring the Energy Meter
You can add an energy meter to your PV system or replace an existing energy meter. The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).
Removing a detected energy meter from the PV system If only one energy meter is detected by the inverter, this will be added to the PV system automatically. Removal via the menu Device configuration is not possible in this case. To remove the energy meter from the PV system, proceed as follows:
· In the parameter group System communication > Measured values > Meter on Speedwire, set the parameter Serial number to any number (e.g. 1). In this way, instead of the energy meter detected, the PV system will add a fictitious energy meter to which the inverter cannot establish communication.
Procedure: 1. Activate the user interface (see Section 8.1, page 48).

64

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG
2. Log in as Installer. 3. Start the installation assistant (see Section 8.4, page 56). 4. In the context menu, select [Starting the installation assistant]. 5. Select [Save and next] until you get to the step Meter configuration. 6. Add or replace the desired energy meter.
8.16 Setting SMA ShadeFix

8 Operation

You can set the time interval in which the inverter has to determine the optimum operating point. If you do not want to use SMA ShadeFix, you can disable the feature. The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).
Procedure: · In the parameter group DC-side > DC settings > SMA ShadeFix, set the parameter Time interval of SMA ShadeFix and set the required time interval. The ideal time interval is usually six minutes. This value should only be increased if the shading situation changes extremely slowly. The inverter optimizes the MPP of the PV system at the predetermined time interval. · In order to disable the SMA ShadeFix feature, in the parameter group DC-side > DC settings > SMA ShadeFix, set the parameter SMA ShadeFix switched on to Off.
8.17 Saving the Configuration in a File
You can save the current configuration of the inverter in a file. You can use this file as a data backup for this inverter and then import this file into this inverter again or another inverter from the same type or device family to configure the inverter. When saving, only the device parameters will be saved, not any passwords.
Procedure: 1. Activate the user interface (see Section 8.1, page 48). 2. Log into the user interface (see Section 8.2, page 52). 3. Select the menu Device Configuration. 4. Select [Settings]. 5. In the context menu, select [Saving the configuration in a file]. 6. Follow the instructions in the dialog.

Operating manual

SBxx-1VL-40-BE-en-19

65

8 Operation

SMA Solar Technology AG

8.18 Adopting a Configuration from a File

To configure the inverter, you can adopt the configuration from a file. To be able to do this, you must first save the configuration of another inverter from the same type or device family in a file (see Section 8.17 “Saving the Configuration in a File”, page 65). When saving, only the device parameters will be adopted, not any passwords.
Requirements: Changes to grid-relevant parameters must be approved by the responsible grid operator. The SMA Grid Guard code must be available. You can request the SMA Grid Guard code via the Online Service Center.
Procedure: 1. Open the user interface (see Section 8.1, page 48). 2. Log into the user interface as an Installer (see Section 8.2, page 52). 3. Select the menu Device Configuration. 4. Select [Settings]. 5. In the context menu, select [Adopting the configuration from a file]. 6. Follow the instructions in the dialog.
8.19 Firmware Update
You can activate an automatic firmware update in the inverter or in the communication product. If no automatic update is set in the communication product (e.g. SMA Data Manager or Sunny Home Manager) or in Sunny Portal, you have the option of carrying out a manual firmware update. You have the following options to update the firmware:
· Automatic Firmware Update (Recommended) · Update the firmware with the existing update file via the user interface of the inverter. · Search and install the firmware via the user interface of the inverter.
8.19.1 Activating Automatic Firmware Update

You can activate the automatic firmware update in the inverter or in the communication product.
If the automatic firmware update is activated in the inverter, the inverter searches for updates and carries out the update.
If the automatic firmware update is activated in the communication product, the communication product searches for updates for the inverter and carries out the update of the inverter. In this case, the automatic firmware update is deactivated by default in the inverter. This prevents multiple downloads of updates.

66

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

8 Operation

In this section we describe how to activate the automatic firmware update in the inverter. The procedure for activating the automatic firmware update for detected devices in the communication product can be found in the manual for the communication product. The basic procedure for changing operating parameters is explained in another section (see Section 8.9 “Changing Operating Parameters”, page 60).
Procedure: · In the parameter group Device > Update, select the Automatic Update parameter and set to Yes.
8.19.2 Updating Firmware with Update File via the User Interface

Requirements: An update file with the desired inverter firmware must be available. The update file is, for example, available for download on the product page of the inverter at www.SMA-Solar.com.
Procedure: 1. Open the user interface (see Section 8.1, page 48). 2. Log into the user interface as an Installer (see Section 8.2, page 52). 3. Click on [Edit parameters]. 4. Select the menu Device Configuration. 5. In the inverter row, click on the gear icon and select Update firmware. 6. Select [Browse] and select the update file for the inverter. 7. Select Update firmware. 8. Follow the instructions in the dialog.
8.19.3 Searching for and Installing New Firmware via the User Interface

Requirement: The inverter must be connected to the Internet.
Procedure: 1. Open the user interface (see Section 8.1, page 48). 2. Log into the user interface as an Installer (see Section 8.2, page 52). 3. Click on [Edit parameters]. 4. Go to Device > Update.

Operating manual

SBxx-1VL-40-BE-en-19

67

8 Operation

SMA Solar Technology AG

5. Select the parameter Check for update and install it and set it to Execute. 6. Click on [Save all]. The firmware is updated in the background.

68

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

9 Disconnecting the Inverter from Voltage Sources

9 Disconnecting the Inverter from Voltage Sources

Procedure: 1. Disconnect the circuit breaker and secure it against reconnection. 2. If an external DC load-break switch is installed, disconnect the external DC load-break switch from all voltage sources. 3. Set the DC load-break switch of the inverter to O.

4. Wait until the LEDs have gone out.

5. Use a current clamp to ensure that no current is present in the DC cables.

6. Release and remove all DC connectors. To do this,

insert a flat-blade screwdriver or an angled

screwdriver (blade width 3.5 mm) into one of the

slide slots and pull the DC connectors out in a

downward direction. Do not pull on the cable.

1

2
7. Ensure that no voltage is present at the DC inputs on the inverter using a suitable measuring device.

8. Loosen the swivel nuts. Operating manual

<03.0V

SBxx-1VL-40-BE-en-19

69

9 Disconnecting the Inverter from Voltage Sources
9. Loosen the screws of the connection cap and remove the connection cap.

SMA Solar Technology AG

10. Use a suitable measuring device to check that no voltage is present at the AC connector between L and N and between L and the grounding conductor. To do so, insert the test probe (maximum diameter: 2 mm) into each round opening of the terminal block.
11. Release and disconnect the AC connector using the sliders located on the side.

LN

1

1

2

70

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

10 Clean the product

10 Clean the product
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.
Procedure: · Ensure that the product is free of dust, foliage and other dirt.

Operating manual

SBxx-1VL-40-BE-en-19

71

11 Troubleshooting

SMA Solar Technology AG

11 Troubleshooting
11.1 Forgotten Password
Password assignment for inverters that are registered in a communication product The password for the user group Installer is also the system password for the system in the communication product. Changing the password of the user group Installer can lead to the inverter no longer being able to be reached by the communication product.
· In the communication product, assign the changed password of the user group Installer as the new system password (see the manual of the communication product).
If you have forgotten the password for the inverter, you can unlock the inverter with a Personal Unlocking Key (PUK). For each inverter, there is 1 PUK for each user group (User and Installer). Tipp: With PV systems that are registered in a communication product, you can also assign a new password for the user group Installer via the communication product. The password for the user group Installer is the same as the system password in the communication product.
Procedure: 1. Request PUK (application form available at www.SMA-Solar.com). 2. Open the user interface (see Section 8.1, page 48). 3. Enter the PUK instead of the password into the field Password. 4. Select Login. 5. Call up the menu Device parameters. 6. Click on [Edit parameters]. 7. In the parameter group User Rights > Access Control change the password of the desired user group. 8. Select [Save all] to save the changes.

72

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

11 Troubleshooting

11.2 Event Messages

Event number 101 102 103 105
202 203 205 206

Message, cause and corrective measures
Grid incident The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid. Corrective measures:
· Check whether the grid voltage at the connection point of the inverter is permanently in the permissible range. If the grid voltage is outside the permissible range due to local grid conditions, contact the grid operator. The grid operator must agree with an adjustment of the voltage at the feed-in point or with a change of the monitored operating limits. If the grid voltage is permanently within the permissible range and this message is still displayed, contact the Service.
Grid incident The utility grid has been disconnected, the AC cable is damaged or the grid voltage at the connection point of the inverter is too low. The inverter has disconnected from the utility grid. Corrective measures:
· Ensure that the miniature circuit breaker is switched on. · Ensure that the AC cable is not damaged and that it is connected
correctly. · Ensure that the country data set has been configured correctly. · Check whether the grid voltage at the connection point of the inverter is
permanently in the permissible range. If the grid voltage is outside the permissible range due to local grid conditions, contact the grid operator. The grid operator must agree with an adjustment of the voltage at the feed-in point or with a change of the monitored operating limits. If the grid voltage is permanently within the permissible range and this message is still displayed, contact the Service.

Operating manual

SBxx-1VL-40-BE-en-19

73

11 Troubleshooting

SMA Solar Technology AG

Event number 302
401 404
501

Message, cause and corrective measures
Active power limit AC voltage The inverter has reduced its power due to a too- high grid voltage to ensure grid stability. Corrective measures:
· If possible, check the grid voltage and observe how often fluctuations occur. If fluctuations occur frequently and this message is displayed often, contact the grid operator and request approval to change the operating parameters of the inverter. If the grid operator gives his approval, discuss any changes to the operating parameters with the Service.
Grid incident The inverter has disconnected from the utility grid. A stand- alone grid or a very large change in the grid frequency was detected. Corrective measures:
· Check the grid connection for significant short-term frequency fluctuations.
Grid incident The power frequency is not within the permissible range. The inverter has disconnected from the utility grid. Corrective measures:
· If possible, check the power frequency and observe how often fluctuations occur. If fluctuations occur frequently and this message is displayed often, contact the grid operator and request approval to change the operating parameters of the inverter. If the grid operator gives his approval, discuss any changes to the operating parameters with the Service.

74

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

11 Troubleshooting

Event number 507
601
701

Message, cause and corrective measures
Active power limit AC frequency The inverter has reduced its power due to a too-high power frequency to ensure grid stability. Corrective measures:
· If possible, check the power frequency and observe how often fluctuations occur. If fluctuations occur frequently and this message is displayed often, contact the grid operator and request approval to change the operating parameters of the inverter. If the grid operator gives his approval, discuss any changes to the operating parameters with the Service.
Grid incident The inverter has detected an excessively high proportion of direct current in the grid current. Corrective measures:
· Check the grid connection for direct current. · If this message is displayed frequently, contact the grid operator and
check whether the monitoring threshold on the inverter can be raised.
Frequency not permitted > Check parameter The power frequency is not within the permissible range. The inverter has disconnected from the utility grid. Corrective measures:
· If possible, check the power frequency and observe how often fluctuations occur. If fluctuations occur frequently and this message is displayed often, contact the grid operator and request approval to change the operating parameters of the inverter. If the grid operator gives his approval, discuss any changes to the operating parameters with the Service.

Operating manual

SBxx-1VL-40-BE-en-19

75

11 Troubleshooting

SMA Solar Technology AG

Event number 801
901 1001 1101

Message, cause and corrective measures
Waiting for grid voltage > Grid failure > Check AC circuit breaker The AC cable is not correctly connected or the country data set is not correctly configured. Corrective measures:
· Ensure that the miniature circuit breaker is switched on. · Ensure that the AC cable is not damaged and that it is connected
correctly. · Ensure that the country data set has been configured correctly. · Check whether the grid voltage at the connection point of the inverter is
permanently in the permissible range. If the grid voltage is outside the permissible range due to local grid conditions, contact the grid operator. The grid operator must agree with an adjustment of the voltage at the feed-in point or with a change of the monitored operating limits. If the grid voltage is permanently within the permissible range and this message is still displayed, contact the Service.
Grounding connection missing > Check connection The grounding conductor is not correctly connected. Corrective measures:
· Ensure that the grounding conductor is correctly connected.
L / N swapped > Check connection The connection of L and N is swapped. Corrective measures:
· Ensure that L and N are correctly connected.
Installation fault > Check connection A second line conductor is connected to N. Corrective measures:
· Connect the neutral conductor to N.

76

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

11 Troubleshooting

Event number 1302
1501
3302-3303

Message, cause and corrective measures
Waiting for grid voltage > Installation failure grid connection > Check grid and fuses L or N not connected. Corrective measures:
· Ensure that L and N are connected. · Ensure that the miniature circuit breaker is switched on. · Ensure that the AC cable is not damaged and that it is connected
correctly.
Reconnection fault grid The changed country data set or the value of a parameter you have set does not correspond to the local requirements. The inverter cannot connect to the utility grid. Corrective measures:
· Ensure that the country data set has been configured correctly. To do this, select the parameter Set country standard and check the value.
Unstable operation There is not enough power at the DC input of the inverter for stable operation. The inverter cannot connect to the utility grid. Corrective measures:
· Ensure that the PV array is designed correctly. · Ensure that the PV array is not covered by snow or otherwise shaded. · Ensure that the PV array is free of errors.

Operating manual

SBxx-1VL-40-BE-en-19

77

11 Troubleshooting

SMA Solar Technology AG

Event number 3401
3501 3601
3701

Message, cause and corrective measures
DC overvoltage > Disconnect PV array Overvoltage at the DC input. This can destroy the inverter. This message is signalized additionally by rapid flashing of the LEDs. Corrective measures:
· Immediately disconnect the inverter from all voltage sources. · Check whether the DC voltage is below the maximum input voltage of
the inverter. If the DC voltage is below the maximum input voltage of the inverter, reconnect the DC connectors to the inverter. · If the DC voltage exceeds the maximum input voltage of the inverter, ensure that the PV array has been correctly rated or contact the installer of the PV array. · If this message is repeated frequently, contact the Service.
Insulation failure > Check generator The inverter has detected a ground fault in the PV array. Corrective measures:
· Check the PV system for ground faults.
High leakage current > Check PV array The leakage current of the inverter and the PV array is too high. There is a ground fault, a residual current or a malfunction. The inverter interrupts feed-in operation immediately after exceeding a threshold. When the fault is eliminated, the inverter automatically reconnects to the utility grid. Corrective measures:
· Check the PV system for ground faults.
Residual current too high > Check PV array The inverter has detected a residual current due to temporary grounding of the PV array. Corrective measures:
· Check the PV system for ground faults.

78

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

11 Troubleshooting

Event number 3801
3901 3902
6001-6438
6501 6502 6509
6512

Message, cause and corrective measures
DC overcurrent > Check PV array Overcurrent at the DC input. The inverter briefly interrupts feed-in operation. Corrective measures:
· If this message is displayed frequently, ensure that the PV array has been correctly rated and wired.
Waiting for DC start conditions > Start conditions not met The feed-in conditions for the utility grid are not yet fulfilled. Corrective measures:
· Ensure that the PV array is not covered by snow or otherwise shaded. · Wait for higher irradiation. · If this message is displayed frequently in the morning, increase the
voltage limit for starting grid feed-in. Change the parameter Critical voltage to start feed-in. · If this message is displayed frequently with medium irradiation, ensure that the PV array is correctly rated.
Self-diagnosis > Device disturbance The cause must be determined by the SMA Service Line. Corrective measures:
· Contact Service.
Self-diagnosis > Overtemperature The inverter has switched off due to excessive temperature. Corrective measures:
· Clean the cooling fins on the rear of the enclosure and the air ducts on the top using a soft brush.
· Ensure that the inverter has sufficient ventilation. · Ensure that the ambient temperature +40°C has not been exceeded. · Ensure that the inverter is not exposed to direct solar irradiation. Minimum operating temperature not reached The inverter will only recommence feeding into the utility grid once the temperature has reached at least -25°C.

Operating manual

SBxx-1VL-40-BE-en-19

79

11 Troubleshooting

SMA Solar Technology AG

Event number 6603 6604
7001 7002
7201 7202
7303
7320 7329

Message, cause and corrective measures
Self-diagnosis > Overload The cause must be determined by the Service. Corrective measures:
· Contact Service.
Sensor fault A temperature sensor in the inverter is defective and the inverter interrupts the feed-in operation. The cause must be determined by the Service. Corrective measures:
· Contact Service.
Data stor. not poss. Internal error. The inverter continues to feed into the utility grid. Corrective measures:
· Contact Service.
Host computer update failed The cause must be determined by the Service. Corrective measures:
· Contact Service. The device with serial number [x] was successfully updated to firmware version [x]. The firmware update was completed successfully. Condition test successful The testing of the update conditions was successful. The firmware update package is suitable for this inverter.

80

SBxx-1VL-40-BE-en-19

Operating manual

SMA Solar Technology AG

11 Troubleshooting

Event number 7330
7331 7332 7333
7341 7342

Message, cause and corrective measures
Condition test failed The testing of the update conditions was not successful. The firmware update package is not suitable for this inverter. Corrective measures:
· Retry update. · Ensure that the selected update file is suitable for this inverter. · If this message is displayed again, contact the Service. Update transport started Update file is being copied. Update transport successful Update file was copied successfully to the inverter’s internal memory.
Update transport failed Update file could not be copied to the inverter’s internal memory. In the event of connection with the inverter via Wi-Fi network, a poor connection quality can be the cause. Corrective measures:
· Retry update. · For Wi-Fi connection: Improve the Wi-Fi connection quality (e.g. via Wi-Fi
repeater) or establish connection with the inverter via Ethernet. · If this message is displayed again, contact the Service. Update Bootloader The inverter is performing a bootloader update.
Update Bootloader failed The bootloader update failed. Corrective measures:
· Retry update. · If this message is displayed again, cont

References

• Solar.com | Get Binding Solar Quotes Online

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>