SMA SUNNY BOY User Manual

SUNNY BOY

User Manual

SUNNY BOY 3.0-US / 3.8-US / 5.0-US /

6.0-US / 7.0-US / 7.7-US

SBxx-US-1XP-41-BA-en-11 | Version 1.1ENGLISH

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 in those cases where a supply agreement requires advance notice. 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

User ManualSBxx-US-1XP-41-BA-en-112

SMA Solar Technology AG

Table of Contents

1 Information on this Document................................................. 5

1.1 Validity........................................................................................................................ 5

1.2 Target Group.............................................................................................................. 5

1.3 Content and Structure of this Document ................................................................... 5

1.4 Levels of Warning Messages .................................................................................... 5

1.5 Symbols in the Document .......................................................................................... 6

1.6 Typographies in the Document.................................................................................. 6

1.7 Designation in the document..................................................................................... 6

1.8 Additional Information ............................................................................................... 7

2 Safety ........................................................................................ 8

2.1 Intended Use .............................................................................................................. 8

2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 9

3 Product Overview .................................................................... 13

3.1 Product Description .................................................................................................... 13

3.2 Symbols on the Product ............................................................................................. 14

3.3 Interfaces and Functions ............................................................................................ 15

3.4 LED Signals................................................................................................................. 21

3.5 Display messages....................................................................................................... 22

4 Operation ................................................................................. 24

4.1 Activating and Operating the Display...................................................................... 24

4.2 Establishing a connection to the user interface ........................................................ 24

4.2.1 Establishing a Direct Connection via Ethernet ...................................... 24

4.2.2 Establishing a direct connection via WLAN ......................................... 25

4.2.3 Establishing a Connection via Ethernet in the local network ............... 26

4.2.4 Establishing a Connection via WLAN in the Local Network ............... 27

4.3 Logging In and Out of the User Interface................................................................. 28

4.4 Start Page Design of the User Interface.................................................................... 30

4.5 Displaying and Downloading the Stored Data........................................................ 33

4.6 Activating the Smart Inverter Screen......................................................................... 33

4.7 Starting the Installation Assistant............................................................................... 34

4.8 Secure power supply operation................................................................................ 35

4.8.1 Enable secure power supply operation ................................................ 35

4.8.2 Disable secure power supply operation ............................................... 36

4.9 Activate WPS Function............................................................................................... 36

4.10 Switching WLAN On and Off................................................................................... 37

4.11 Switching the Dynamic Power Display Off............................................................... 38

User Manual SBxx-US-1XP-41-BA-en-11 3

Table of Contents

4.12 Changing the Password............................................................................................. 38

4.13 Changing Operating Parameters.............................................................................. 38

4.14 Configuring the Country Data Set............................................................................. 39

4.15 Configuring the Rapid Shutdown Function............................................................... 40

4.16 Changing the Operating Mode of the Multifunction Relay.................................... 41

4.17 Configuring the Modbus Function............................................................................. 42

4.18 Setting SMA ShadeFix............................................................................................... 43

4.19 Deactivating the Arc-Fault Circuit Interrupter (AFCI)................................................ 43

4.20 Saving the Configuration in a File............................................................................. 44

4.21 Adopting a Configuration from a File....................................................................... 44

4.22 Updating the Firmware.............................................................................................. 44

SMA Solar Technology AG

5 Cleaning the Inverter ............................................................... 47

6 Troubleshooting........................................................................ 48

6.1 Forgotten Password.................................................................................................... 48

6.2 Event Messages ......................................................................................................... 49

6.3 Checking the PV System for Ground Faults.............................................................. 67

7 Accessories ............................................................................... 72

8 Compliance Information .......................................................... 73

9 Contact ...................................................................................... 74

User ManualSBxx-US-1XP-41-BA-en-114

SMA Solar Technology AG

1 Information on this Document

1.1 Validity

This document is valid for:

• SB3.0-1SP-US-41 (SunnyBoy 3.0-US) from firmware version 03.01.00.R

• SB3.8-1SP-US-41 (SunnyBoy 3.8-US) from firmware version 03.01.00.R

• SB5.0-1SP-US-41 (SunnyBoy 5.0-US) from firmware version 03.01.00.R

• SB6.0-1SP-US-41 (SunnyBoy 6.0-US) from firmware version 03.01.00.R

• SB7.0-1SP-US-41 (SunnyBoy 7.0-US) from firmware version 03.01.00.R

• SB7.7-1SP-US-41 (SunnyBoy 7.7-US) from firmware version 03.01.00.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 configuration, operation and troubleshooting of the product as well as the operation of the product user interface.

You will find the latest version of this document and further information on the product in PDF format 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.

User Manual SBxx-US-1XP-41-BA-en-11 5

1 Information on this Document

☐

☑

✖

SMA Solar Technology AG

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE

Indicates a situation which, if not avoided, can result in property damage.

1.5 Symbols in the Document

Symbol Explanation

Information that is important for a specific topic or goal, but is not safety-relevant

Indicates a requirement for meeting a specific goal

Desired result

A problem that might occur

Example

1.6 Typographies in the Document

Typography Use Example

bold

[Button] [Key]

# • Placeholder for variable

• Messages

• Terminals

• Elements on a user interface

• Elements to be selected

• Elements to be entered

• Connects several elements to be selected

• Button or key to be selected or pressed

components (e.g., parameter names)

• Connect the insulated conductors to the terminals X703:1 to X703:6.

• Enter 10 in the field Minutes.

• Select Settings > Date.

• Select [Enter].

• Parameter WCtlHz.Hz#

1.7 Designation in the document

Complete designation Designation in this document

SunnyBoy Inverter, product

User ManualSBxx-US-1XP-41-BA-en-116

SMA Solar Technology AG

1 Information on this Document

1.8 Additional Information

For more information, please go to www.SMA-Solar.com.

Title and information content Type of information

Mounting, installation, commissioning and decommissioning Installation manual

"Application for SMAGridGuard Code" Form

"PUBLIC CYBER SECURITY - Guidelines for a Secure PV System Communication"

"Grid Support Utility Interactive Inverters" Information about how to activate and to set the grid supporting fea-

tures according to UL1741SA

"Efficiency and Derating" Efficiency and derating behavior of the SMA inverters

"Parameters and Measured Values" Overview of all inverter operating parameters and their configura-

tion options

"SMA and SunSpec Modbus® Interface" Information on the Modbus interface

"Modbus® parameters and measured values" Device-specific register HTML file

"SMASPEEDWIRE FIELDBUS" Technical information

Technical information

Technical Information

User Manual SBxx-US-1XP-41-BA-en-11 7

2 Safety

SMA Solar Technology AG

2 Safety

2.1 Intended Use

The Sunny Boy is a transformerless PV inverter which converts the direct current of the PV array to grid-compliant alternating current and feeds it into the utility grid.

The product is suitable for indoor and outdoor use. The product must only be operated with PV arrays (PV modules and cabling) that are approved by

the electrical standards applicable on-site and the NationalElectricalCode® ANSI/NFPA 70 or the CanadianElectricalCode® CSA C22.1.

No galvanic isolation

The product is not equipped with a transformer and therefore has no galvanic isolation.

• Do not operate grounded PV modules together with the product. If grounded PV modules are connected to the product, an event will occur which will appear on the product display. The event will also be displayed, along with the associated message, in the event list on the user interface of the product.

• Only ground the mounting frames of the PV modules.

• The neutral conductor of the AC output is not bonded to ground within the product.

• The neutral conductor of the AC output for secure power supply operation is bonded to ground within the product.

PV modules with a high capacity to ground may only be used if their coupling capacity does not exceed 2.5μF.

To protect the PV system against excessive reverse currents under fault conditions, a DC-side overcurrent protective device must be connected in accordance with the National Electrical Code to prevent any short-circuit currents that exceed the ampacity of the DC electric circuit or the maximum series fuse rating of the PV modules. Typically, string fuses are used if more than two strings are connected in parallel.

All components must remain within their permitted operating ranges and their installation requirements at all times.

The product is approved for the US and Canadian market. Use 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 the intended use.

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.

User ManualSBxx-US-1XP-41-BA-en-118

SMA Solar Technology AG

This document does not replace and is not intended to replace any local, state, provincial, federal or national laws, regulations or codes applicable to the installation, electrical safety and use of the product. SMA Solar Technology AG assumes no responsibility for the compliance or noncompliance with such laws or codes in connection with the installation of the product.

The type label must remain permanently attached to the product.

2 Safety

2.2 IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS 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 conductors are touched

When exposed to light, the PV modules generate high DC voltage which is present in the DC conductors. Touching live DC conductors results in death or lethal injuries due to electric shock.

• Disconnect the product from voltage sources and make sure it cannot be reconnected before working on the device.

• Do not touch non-insulated parts or cables.

• Do not remove the terminal block with the connected DC conductors from the slot under load.

• Wear suitable personal protective equipment for all work on the product.

DANGER

Danger to life due to electric shock when touching live system components in case of a ground fault

If a ground fault occurs, parts of the system may still be live. Touching live parts and cables results in death or lethal injuries due to electric shock.

• Disconnect the product from voltage sources and make sure it cannot be reconnected before working on the device.

• Touch the cables of the PV array on the insulation only.

• Do not touch any parts of the substructure or frame of the PV array.

• Do not connect PV strings with ground faults to the inverter.

• Ensure that no voltage is present and wait five minutes before touching any parts of the PV system or the product.

User Manual SBxx-US-1XP-41-BA-en-11 9

2 Safety

SMA Solar Technology AG

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 inverter is classified as "TNV-1" and offers protection against overvoltages of up to 1.5kV.

WARNING

Danger to life due to fire or explosion

In rare cases, an explosive gas mixture can be generated inside the inverter under fault conditions. In this state, switching operations can cause a fire inside the inverter or explosion. Death or lethal injuries due to hot or flying debris can result.

• Do not operate the DC load-break switch on the inverter in the event of ground fault

• 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.

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 inverter. Touching toxic substances and inhaling toxic gases and dusts can cause skin irritation, burns or poisoning, trouble breathing and nausea.

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 600V or higher.

User ManualSBxx-US-1XP-41-BA-en-1110

SMA Solar Technology AG

CAUTION

Risk of burns from hot surfaces

The surface of the inverter can get very hot. Touching the surface can result in burns.

• Mount the inverter in such a way that it cannot be touched inadvertently.

• Do not touch hot surfaces.

• Wait 30 minutes for the surface to cool sufficiently.

• Observe the safety messages on the inverter.

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

Damage to the enclosure seal in subfreezing conditions

If you open the product or disconnect the PowerUnit and ConnectionUnit when temperatures are below freezing, the enclosure seals can be damaged. Moisture can penetrate the product and damage it.

• If a layer of ice has formed on the enclosure seal when temperatures are below freezing, remove it prior to opening the product (e.g. by melting the ice with warm air).

• Do not disassemble the PowerUnit and ConnectionUnit unless the ambient temperature is at least 0°C (32°F) and conditions are frost-free.

2 Safety

NOTICE

Damage to the product due to sand, dust and moisture ingress

Sand, dust and moisture penetration can damage the product and impair its functionality.

• Only open the product if the humidity is within the thresholds and the environment is free of sand and dust.

• Do not open the product during a dust storm or precipitation.

• Close tightly all enclosure openings.

• Only use listed rain-tight or liquid-tight conduit fittings to attach the conduits to the product.

NOTICE

Damage to the inverter due to electrostatic discharge

Touching electronic components can cause damage to or destroy the inverter through electrostatic discharge.

• Ground yourself before touching any component.

User Manual SBxx-US-1XP-41-BA-en-11 11

2 Safety

SMA Solar Technology AG

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 inverters 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.

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.

Electrical installations (for North America)

All installations must conform with the laws, regulations, codes and standards applicable in the jurisdiction of installation (e.g. National Electrical Code® ANSI/NFPA 70 or Canadian

Electrical Code® CSA-C22.1.).

• Before connecting the product to the utility grid, contact your local grid operator. The electrical connection of the product must be carried out by qualified persons only.

• Ensure that the cables or conductors used for electrical connection are not damaged.

User ManualSBxx-US-1XP-41-BA-en-1112

SMA Solar Technology AG

SUNNY BO

3 Product Overview

3.1 Product Description

Figure 1: Design of the inverter

Position Designation

A Power Unit

B Enclosure lid of the Power Unit

C Enclosure lid for the Connection Unit

D Connection Unit

E Warning label with compliance information

F DC load-break switch

G Type label

The type label uniquely identifies the inverter. The type label must remain per-

H Fan (only with Sunny Boy 7.0 and 7.7)

manently attached to the product. You will find the following information on the type label:

• Inverter device type (Model)

• Serial number of the PowerUnit (Serial No. Power Unit or S/N Power Unit)

• Date of manufacture

• Device-specific characteristics

3 Product Overview

User Manual SBxx-US-1XP-41-BA-en-11 13

3 Product Overview

Position Designation

I Additional type label

The additional type label must remain permanently attached to the product. You will find the following information on the additional type label:

• Device type (Model)

• Inverter serial number (Serial number device or S/N device)

• Identification key (PIC) for registration in Sunny Portal

• Registration ID (RID) for registration in Sunny Portal

• WLAN password (WPA2-PSK) for the direct connection to the user interface of the inverter via WLAN

J Display

The display shows the current operating data and events or errors.

K LEDs

The LEDs indicate the operating state of the product.

3.2 Symbols on the Product

Symbol Explanation

Beware of electrical voltage The product operates at high voltages.

SMA Solar Technology AG

Beware of hot surface The product can get hot during operation.

Observe the documentation Observe all documentation supplied with the product.

Observe the documentation Together with the red LED, this symbol indicates an error.

Inverter Together with the green LED, this symbol indicates the operating state of the in-

verter.

Data transmission Together with the blue LED, this symbol indicates the status of the network con-

nection.

User ManualSBxx-US-1XP-41-BA-en-1114

SMA Solar Technology AG

Symbol Explanation

Equipment Grounding Terminal This symbol indicates the position for the connection of an equipment ground-

ing conductor.

UL1741 and CSA C22.2 No. 107.1 are the standards applied by Underwriters Laboratories to the product to certify that it meets the requirements of the National Electrical Code®, the Canadian Electrical Code® and IEEE1547.

3 Product Overview

3.3 Interfaces and Functions

The inverter can be equipped or retrofitted with the following interfaces and functions:

User interface for monitoring and configuration

The product is equipped as standard with an integrated webserver, which provides a user interface for configuring and monitoring the product. The product user interface can be called up via the web browser if there is an existing connection to an end device (e.g. computer, tablet PC or smartphone).

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 inverter 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 inverter 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.

Class 1 wiring methods are to be used for field wiring connection to the terminals of the communication interface.

SMA Webconnect

The inverter is equipped with a Webconnect function as standard. The Webconnect function enables direct data transmission between the inverter and SunnyPortal (online monitoring system from SMA).

User Manual SBxx-US-1XP-41-BA-en-11 15

3 Product Overview

There are two SunnyPortal versions: the classical SunnyPortal (https://www.sunnyportal.com) and the newly developed SunnyPortal powered by ennexOS (https://ennexOS.sunnyportal.com). Both systems differ in their supported functions. With an existing user account, you can log into both portals as well as into SunnyDesign (system planning software from SMA).

In a SunnyPortal system, up to four inverters with Webconnect function can be displayed together. A communication product (e.g. SMADataManager) is required for systems with more than four inverters.

The system must be registered in the classic SunnyPortal if the inverter is integrated into a local network and connected to the Internet via this network. With this connection, you have the possibility to view the data online in real time.

If the inverter is connected to the Internet via the cellular network, you must register the system in SunnyPortal powered by ennexOS. The communication with the inverters is optimized with regard to the data volume and availability of the inverter. No data can be viewed in real time. Note that the inverter must be equipped with a firmware version ≥3.01.17.R for connection via the cellular network.

SMA Solar Technology AG

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 product has a WPS function. The WPS function is for automatically connecting the product to a network (e.g. via router) and establish a direct connection between the product and an end device.

Expanding the radio range in the WLAN network

In order to expand the radio range of the inverter in the WLAN network, you can install the Antenna Extension Kit accessory set in the inverter.

Modbus

The product is equipped with a Modbus interface. The Modbus interface is deactivated by default and must be configured as needed.

The Modbus interface of the supported SMA products is designed for industrial use – via SCADA systems, for example – and has the following tasks:

• Remote query of measured values

• Remote setting of operating parameters

• Setpoint specifications for system control

Module slots

The inverter is standard-equipped with two module slots. The module slots are located on the communication assembly and allow additional modules to be connected (e.g. SMA Sensor Module). The modules are available as accessories. The installation of two identical modules is not permissible.

SMARS485Module

The inverters of type "SBx.x-1SP-US-41" can be retrofitted with the SMARS485Module.

User ManualSBxx-US-1XP-41-BA-en-1116

SMA Solar Technology AG

By installing the SMA RS485 Module, the inverter is able to communicate with the energy meter of the SMARevenueGradeMeterKit.

Class 1 wiring methods are to be used for field wiring connection to the terminals of the communication interface.

3 Product Overview

Antenna Extension Kit

Within the WLAN network, the Antenna Extension Kit enables the radio range of the inverter to be upgraded (Information on assembly and connection see manual of the Antenna Extension Kit). The Antenna Extension Kit can be retrofitted.

SMA Cellular LTE Modem Kit

The inverter can be retrofitted with the SMA Cellular LTE Modem Kit from firmware version

03.01.17.R. The SMACellular LTE Modem Kit allows the direct data transmission between the inverter and the

internet portal SunnyPortal powered by ennexOS via the cellular network as an alternative to data transmission via Ethernet or WLAN. In addition, the SMA Cellular LTE Modem Kit enables the communication between the inverter and the energy meter.

The SMACellular LTE Modem Kit transmits up to four times a day a limited amount of data to SunnyPortal powered by ennexOS. The standard term of the mobile data plan for the SMACellular LTE Modem Kit is five years. All costs are covered within the term. No additional costs will be incurred. You have the possibility to extend the term of the mobile data plan. For this purpose, contact SMA Solar Technology AG. By using the SMACellular LTE Modem Kits, a local network connection is not absolutely necessary. However, it is recommended to be able to view all information regarding the system in SunnyPortal powered by ennexOS.

Energy meters in accordance with ANSI C12.20

The inverter type "SBx.x-1SP-US-41" can be retrofitted with the SMA Revenue Grade Meter Kit that in accordance with ANSI C12.20 includes an energy meter. The inverter must be equipped either with the SMA Cellular LTE Modem Kit or SMA RS485 Module to operate the SMA Revenue Grade Meter Kit. The inverter type "SBx.x-1TP-US-41" is equipped with an energy meter as standard.

The energy meter fulfills the accuracy class 0.5 in accordance with ANSI C12.20. The energy meter is a so called PV production meter intended to measure the generated energy of the inverter. The measured values of the energy meter can be used for billing purposes.

Grid Management Services

The inverter is a grid support interactive inverter. The inverter was tested in accordance with the UL1741 SA (2016-09-07) to be compliant with the

source requirements documents of the states available at the time. For connecting the inverter to the utility grid, no additional grid monitoring equipment is necessary. A description of the tested functions and instructions on the activation and setting of functions can be found in the technical information "Grid Support Utility Interactive Inverters" at www.SMA-Solar.com.

PV Rapid Shutdown Equipment

The inverter is listed as PV Rapid Shutdown Equipment (PVRSE) according to UL 1741. All DC inputs and AC outputs of this product comply with photovoltaic rapid shutdown requirements

for controlled conductors outside the array.

User Manual SBxx-US-1XP-41-BA-en-11 17

3 Product Overview

SMA Solar Technology AG

A complete PV Rapid Shutdown System consists of the inverter, PV array disconnect switches, and a Rapid Shutdown initiation device. The Rapid Shutdown initiation device serves to initiate a rapid shutdown. The PV Rapid Shutdown System must limit the DC conductors to <30V within 30seconds.

NOTICE - The inverter's Rapid Shutdown function is initiated by disconnecting the inverter from the AC grid voltage, for example, by opening the main PV system AC disconnect. The AC disconnect that serves as the Rapid Shutdown initiation device must be readily accessible and clearly marked in accordance with National Electrical Code®. The Rapid Shutdown status of the PV system will be indicated by the On/Off (Closed/Open) position of this AC disconnect. The Off (Open) position indicates that a rapid shutdown has been initiated.

If PV array disconnect switches compliant with the SunSpec communication signal for Rapid Shutdown systems are installed, the inverter can transmit a SunSpec-compliant "permission to operate" signal to them via its DC input conductors. When a rapid shutdown is initiated, the inverter will stop transmitting the SunSpec signal. When the SunSpec signal is not being received, the PV array disconnect switches are responsible for reducing line voltages within the PV array in accordance with National Electrical Code®. In the event of a rapid shutdown via the SunSpec communication signal, it is important that all PV modules connected to the inverter are always equipped with SunSpec-compliant PV array disconnect switches, otherwise the inverter cannot start feed-in operation. The sum of the standby voltages of all PV array disconnect switches of a string must be <30V to ensure safe discharging of the DC lines. In addition, the recommended total length of all DC lines of a string should not exceed 300m (1000ft). The total length defines the length of the entire string wiring including the connection cable of the PV module switch in the string (measured from the positive DC terminal to the negative DC terminal of the inverter).

A PV Rapid Shutdown system can also be installed using PV array disconnect switches initiated in case of power failures or other means. In these cases, it must be ensured that the PV system Rapid Shutdown initiation device initiates a rapid shutdown of the PV array devices at the same time that the inverter is disconnected from grid voltage.

The PV array disconnect switches must disconnect the PV array from the inverter within a maximum of 15 seconds after Rapid Shutdown initiation.

The inverter is capable of grid support operation where in case of a power failure or by activating the AC disconnect, the inverter remains connected to the utility grid for a defined ride-through time and waits for voltage recovery. If grid voltage does not recover within the defined ride-through time, the inverter disconnects from the grid and a rapid shutdown is initiated.

The Rapid Shutdown function is disabled by default. The Rapid Shutdown function should only be enabled when PV array disconnect switches have been installed within the PV array or between the PV array and the inverter. The Rapid Shutdown function can be enabled during or after inverter commissioning via the user interface by selecting the operating mode suitable for the PV array disconnect switches. If the Rapid Shutdown function is enabled and no PV array disconnect switches are installed, the inverter cannot discharge the connected DC input conductors during a rapid shutdown. As a result, the inverter can be damaged.

WARNING - THIS PV RAPID SHUTDOWN EQUIPMENT DOES NOT PERFORM ALL OF THE FUNCTIONS OF A COMPLETE PV RAPID SHUTDOWN SYSTEM. THIS PV RAPID SHUTDOWN EQUIPMENT MUST BE INSTALLED WITH OTHER EQUIPMENT TO FORM A COMPLETE PV RAPID SHUTDOWN SYSTEM THAT MEETS THE REQUIREMENTS OF NEC (NFPA 70) FOR

User ManualSBxx-US-1XP-41-BA-en-1118

SMA Solar Technology AG

CONTROLLED CONDUCTORS OUTSIDE THE ARRAY. OTHER EQUIPMENT INSTALLED IN OR ON THIS PV SYSTEM MAY ADVERSLY AFFECT THE OPERATION OF THE PV RAPID SHUTDOWN SYSTEM. IT IS THE RESPONSIBILITY OF THE INSTALLER TO ENSURE THAT THE COMPLETED PV SYSTEM MEETS THE RAPID SHUT DOWN FUNCTIONAL REQUIREMENTS. THIS EQUIPMENT MUST BE INSTALLED ACCORDING TO THE MANUFACTURER’S INSTALLATION MANUAL.

3 Product Overview

Parallel Operation of the DC Inputs A and B

The DC inputs A and B of the inverter can be operated in parallel and up to three strings can be connected to it in parallel. As a result, as opposed to normal operation, up to three strings can be connected directly to inverters with two DC inputs and up to four strings to inverters with three DC inputs. The inverter automatically detects the parallel operation of the DC inputs A and B.

Secure power supply operation

You can connect an external outlet and a switch to the inverter in order to enable the outlet. In case of a grid failure, the outlet supplies a load with current from the PV system. When the outlet is enabled via the switch, the load is supplied with current from the PV system. The inverter automatically regulates the energy supply of the outlet depending on the solar irradiation on the PV system. When the outlet is enabled and a load is supplied with current from the PV system, the inverter is disconnected from the utility grid and does not feed into the utility grid.

When using the SMA Rooftop Communication Kit and the TS4-O module technology components, secure power supply operation is only available if an external rapid shutdown initiator and the switch for secure power supply operation are connected to the module of the SMA Rooftop Communication Kit. The switch for secure power supply operation must be connected to the module in series with a voltage supply of 18V (e.g. two 9V batteries). If an external rapid-shutdown initiator is used, the AC miniature circuit breaker is no longer the rapid-shutdown initiator in the system.

When using TS4-F or TS4-S module technology components, secure power supply operation is not available.

No secure power supply operation when using TS4-F and TS4-S module technology components

If the SMARooftopCommunicationKit is installed in the inverter and TS4-F and TS4-S module technology components are used in the system, the secure power supply operation is not available. Secure power supply operation is only available in connection with TS4-O module technology components.

No secure power supply operation when using PV array disconnect switch as per the SunSpec interoperability specification

The secure power supply operation is not available if the Rapid Shutdown function of the inverter is enabled and the PV array disconnect switches are used in accordance with the SunSpec Interoperability Specification.

User Manual SBxx-US-1XP-41-BA-en-11 19

3 Product Overview

SMA Solar Technology AG

Do not connect loads that require a stable electricity supply to the outlet for secure power supply operation.

Secure power supply operation must not be used for loads that require a stable electricity supply. The power available during secure power supply operation depends on the solar irradiation on the PV system. Therefore, power output can fluctuate considerably depending on the weather or may not be available at all.

• Do not connect loads to the outlet for secure power supply operation if they are dependent on a stable electricity supply for reliable operation.

Multifunction Relay

The inverter is equipped with a multifunction relay as standard. The multifunction relay is an interface that can be configured for the operating mode used by a particular system.

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.

String-failure detection

The self-learning string failure detection identifies to which of the three inverter DC inputs the strings are connected. The self-learning string failure detection identifies if the connected string is inoperable and is no longer contributing to the energy yield (e.g. due to damages such as a cable break) and monitors the input to which the defective string is connected. If the error persists, an event will be reported at the latest one day after the detection of the defective string. This prevents partial failures of the PV array from being undetected for a long time and which will result in yield losses. The self-learning string failure detections automatically identifies if a string has been repaired and resets the event. If the defective string should no longer be connected, the event must be reset manually.

Arc-Fault Circuit Interrupter (AFCI)

In accordance with the National Electrical Code®, the inverter has a system for DC arc fault detection and interruption. The arc-fault circuit interrupter is listed in accordance with UL 1699B Ed.1. A detected electric arc causes the inverter to interrupt feed-in operation for a short time and to resume the feed-in operation automatically. If the installation conditions allow it, you can deactivate the arc-fault circuit interrupter.

SMA Smart Connected

SMA Smart Connected is the free monitoring of the inverter via the SMA SunnyPortal. Thanks to SMA Smart Connected, the PV system operator and qualified person will be informed automatically and proactively about inverter events that occur.

User ManualSBxx-US-1XP-41-BA-en-1120

SMA Solar Technology AG

SMA Smart Connected is activated during registration in SunnyPortal. In order to use SMA Smart Connected, it is necessary that the inverter is permanently connected to SunnyPortal and the data of the PV system operator and qualified person is stored in SunnyPortal and up-to-date.

3 Product Overview

3.4 LED Signals

The LEDs indicate the operating state of the inverter.

LED signal Explanation

The green LED is flashing (twoseconds on and twoseconds off)

The green LED is flashing (1.5s on and 0.5s off)

The green LED flashes quickly

The green LED is glowing Feed-in operation

The green LED is pulsing Feed-in operation

The green LED is off The inverter is not feeding into the utility grid.

The red LED is glowing Event occurred

The blue LED flashes slowly for approx. one minute

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.

Secure power supply operation The secure power supply operation is enabled and the inverter sup-

plies the outlet with current from the PV system.

Update of central processing unit The central processing unit of the inverter is being updated.

The inverter feeds in with a power of at least 90%.

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.

In addition to the glowing red LED, the display indicates the following information about the event:

• Event type

• Event number

• Date and time at which the event occurred

Communication connection is being established The inverter is establishing a connection to a local network or is es-

tablishing a direct connection to an end device via Ethernet (e.g. computer, tablet PC or smartphone).

User Manual SBxx-US-1XP-41-BA-en-11 21

3 Product Overview

LED signal Explanation

The blue LED flashes quickly for approx. two minutes (0.25s on and 0.25s off).

The blue LED is glowing Communication active

WPS active The WPS function is active.

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

SMA Solar Technology AG

3.5 Display messages

Display message Explanation

Package Installed firmware version and configured country data set

Ser Product serial number

HW Hardware version of the product

FW-HP Firmware version of the central processing unit

FW-KP Firmware version of the communication processor

Ethcom A Status of the network port A

Ethcom B Status of the network port B

E-IP Ethernet IP address of the product

SMsk Subnet mask of the product

GW Gateway address of the product

DNS IP address of the domain name server

Wlancom Status of the WLAN connection

W-IP WLAN IP address of the product

DC A Status of the DC input A

DC B Status of the DC input B

DC C Status of the DC input C

AC12 Voltage / current between the line conductors L1 and L2

AC13 Voltage / current between the line conductors L1 and L3

AC23 Voltage / current between the line conductors L2 and L3

SPS-mode active The secure power supply operation is enabled.

P: Overload Overload at the input for secure power supply operation

Update status Firmware update information

Error An event has occurred.

User ManualSBxx-US-1XP-41-BA-en-1122

SMA Solar Technology AG

Display message Explanation

P Instantaneous output power

E-Total Total produced energy

Pmax Maximum output power

cos φ Displacement power factor

Update file(s) found New firmware version available

Update progress Update is being performed

3 Product Overview

User Manual SBxx-US-1XP-41-BA-en-11 23

+ 53 hidden pages