SMA SUNNY BOY STORAGE 3.8-US, SUNNY BOY STORAGE 6.0-US, SUNNY BOY STORAGE 5.0-US Installation Manual
SBSxx-US-10-IA-xx-12 | 111582-00.03 | Version 1.2
SUNNY BOY STORAGE 3.8-US / 5.0-US /
6.0-US
ENGLISH
Installation Manual
ESPAÑOL
Instrucciones de instalación
FRANÇAIS
Instructions d’installation
eManual
Legal Provisions
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-122
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 used software modules can be called up on the user interface of the product.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. +49 561 9522-0
Fax +49 561 9522-100
www.SMA.de
Email: info@SMA.de
Status: 1/31/2019
Copyright © 2019 SMA Solar Technology AG. All rights reserved.
ENGLISH
Table of Contents
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 3
Table of Contents
1 Information on this Document................................................. 5
1.1 Validity........................................................................................................................ 5
1.2 Target Group.............................................................................................................. 5
1.3 Content and Structure of this Document ................................................................... 5
1.4 Levels of warning messages...................................................................................... 5
1.5 Symbols in the Document .......................................................................................... 6
1.6 Typographies in the document.................................................................................. 6
1.7 Designation in the document..................................................................................... 6
1.8 Additional Information ............................................................................................... 6
2 Safety ........................................................................................ 8
2.1 Intended Use .............................................................................................................. 8
2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 9
3 Scope of Delivery..................................................................... 13
4 Product Overview .................................................................... 14
4.1 Product Description .................................................................................................... 14
4.2 Symbols on the Product ............................................................................................. 15
4.3 Interfaces and Functions ............................................................................................ 16
4.4 LED Signals................................................................................................................. 22
4.5 System Structure......................................................................................................... 23
5 Mounting................................................................................... 25
5.1 Requirements for Mounting ....................................................................................... 25
5.2 Mounting the Inverter................................................................................................. 27
6 Electrical Connection................................................................ 30
6.1 Overview of the Connection Area ............................................................................ 30
6.1.1 View from Below..................................................................................... 30
6.1.2 Interior View............................................................................................ 31
6.2 AC Connection........................................................................................................... 32
6.2.1 Requirements for the AC Connection.................................................... 32
6.2.2 Connecting the Inverter to the Utility Grid ............................................ 33
6.3 Connecting the Network Cables............................................................................... 36
6.4 Connecting the Data Cable of the Battery and Communication Cable of the
Automatic Transfer Switch ......................................................................................... 37
6.5 Connecting the energy meter.................................................................................... 39
6.6 Connecting the Switch and Outlet for Secure Power Supply Operation ............... 42
6.7 Connecting Switch for black start (in battery-backup systems)............................... 46
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Table of Contents
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-124
6.8 DC Connection........................................................................................................... 47
6.8.1 Possible Connection ............................................................................... 47
6.8.1.1 Connection of Two Batteries .............................................. 47
6.8.1.2 Connection of a battery with a charging/discharging
current limit of 10 A............................................................ 49
6.8.1.3 Connection of one battery with a charging/discharging
current limit of 20 A............................................................ 50
6.8.1.4 Connection of a battery with a charging/discharging
current limit of 30 A............................................................ 51
6.8.1.5 Connection of Three Batteries ............................................ 52
6.8.2 Requirements for the DC Connection.................................................... 53
6.8.3 Connecting the power cable of the battery.......................................... 54
7 Commissioning ......................................................................... 56
7.1 Commissioning Procedure ......................................................................................... 56
7.2 Commissioning the Inverter........................................................................................ 56
7.3 Establishing a connection to the user interface ........................................................ 58
7.3.1 Establishing a Direct Connection via Ethernet ...................................... 58
7.3.2 Establishing a direct connection via WLAN ......................................... 58
7.3.3 Establishing a Connection via Ethernet in the local network ............... 60
7.3.4 Establishing a Connection via WLAN in the Local Network ............... 61
7.4 Logging Into the User Interface................................................................................. 62
7.5 Selecting a configuration option ............................................................................... 63
8 Disconnecting the Inverter from Voltage Sources................. 66
9 Decommissioning the Inverter................................................. 67
10 Technical Data .......................................................................... 69
10.1 DC/AC ....................................................................................................................... 69
10.1.1 Sunny Boy Storage 3.8-US / 5.0-US.................................................... 69
10.1.2 Sunny Boy Storage 6.0-US.................................................................... 71
10.2 AC Output, Secure Power Supply Operation.......................................................... 72
10.3 Triggering Thresholds and Tripping Time.................................................................. 72
10.4 General Data ............................................................................................................. 73
10.5 Protective Devices ...................................................................................................... 74
10.6 Torques....................................................................................................................... 74
10.7 Data Storage Capacity.............................................................................................. 75
11 Compliance Information.......................................................... 76
12 Contact ...................................................................................... 77
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1 Information on this Document
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 5
1 Information on this Document
1.1 Validity
This document is valid for:
• SBS3.8-US-10 (SunnyBoyStorage 3.8-US) from firmware version 1.50.10.R.
• SBS5.0-US-10 (SunnyBoyStorage 5.0-US) from firmware version 1.50.10.R.
• SBS6.0-US-10 (SunnyBoyStorage 6.0-US) from firmware version 1.50.10.R.
1.2 Target Group
The tasks described in this document must only be performed by qualified persons. Qualified
persons must have the following skills:
• Knowledge of how batteries work and are operated
• Training in how to deal with the dangers and risks associated with installing, repairing and
using electrical devices, batteries 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
• Knowledge of and compliance with the documents of the battery manufacturer with all safety
information
1.3 Content and Structure of this Document
This document describes the installation, commissioning and decommissioning of the product.
The latest version of this document and the manual for operating the user interface as well as
information on configuration and troubleshooting of the product are to be found in PDF format at
www.SMA-Solar.com.
Illustrations in this document are reduced to the essential information and may deviate from the real
product.
1.4 Levels of warning messages
The following levels of warning messages may occur when handling the product.
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.
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1 Information on this Document
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-126
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
• Messages
• Terminals
• Elements on a user interface
• Elements to be selected
• Elements to be entered
• Connect the insulated
conductors to the terminals
X703:1 to X703:6.
• Enter 10 in the field
Minutes.
>
• Connects several elements to be
selected
• Select Settings > Date.
[Button]
[Key]
• Button or key to be selected or
pressed
• Select [Enter].
1.7 Designation in the document
Complete designation Designation in this document
SMA Solar Technology AG SMA
SunnyBoyStorage Inverter, product
1.8 Additional Information
For more information, please go to www.SMA-Solar.com.
Title and information content Type of information
Operation, configuration and troubleshooting User Manual
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1 Information on this Document
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 7
Title and information content Type of information
"Approved batteries and battery communication connection"
Overview of approved batteries
Technical Information
"Application for SMAGridGuard Code" Form
"Efficiency and Derating"
Efficiency and derating behavior of the SMA inverters
Technical Information
"Grid Support Utility Interactive Inverters"
Information about how to activate and to set the grid supporting fea-
tures according to UL1741SA
Technical Information
"Parameters and Measured Values"
Overview of all inverter operating parameters and their configura-
tion options
Technical Information
"SMA and SunSpec Modbus® Interface"
Information on the Modbus interface
Technical Information
"Modbus® parameters and measured values"
Device-specific register HTML file
Technical Information
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2 Safety
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-128
2 Safety
2.1 Intended Use
The SunnyBoyStorage is an AC-coupled battery inverter for parallel grid and stand-alone mode
operation. The SunnyBoyStorage converts the direct current supplied by a battery into gridcompliant alternating current. The SunnyBoyStorage, together with a battery and a compatible
energy meter, make up a system for increased self-consumption (FlexibleStorageSystem) or,
together with a automatic transfer switch compatible with SunnyBoyStorage, a battery-backup
system (FlexibleStorageSystem with battery-backup function).
The product must only be used as stationary equipment.
The product is suitable for indoor and outdoor use.
The product may only be operated with one of the energy meters approved by SMA Solar
Technology AG. An updated list of energy meters approved by SMA Solar Technology AG is
available at www.SMA-Solar.com.
The product must only be operated in connection with an intrinsically safe lithium-ion battery
approved by SMA Solar Technology AG. An updated list of batteries approved by SMA Solar
Technology AG is available at www.SMA-Solar.com.
The battery must comply with UL1973 and must be intrinsically safe.
The communication interface of the used battery must be compatible with the product. The entire
battery voltage range must be completely within the permissible input voltage range of the product.
The maximum permissible DC input voltage of the product must not be exceeded.
The product is not suitable for supplying life-sustaining medical devices. A power outage must not
lead to personal injury.
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The product is approved for the US and Canadian market.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable laws, regulations, standards and directives. Any other application
may cause personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA 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.
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.
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2 Safety
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 9
2.2 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This section contains safety information that must be observed at all times when working on or with
the product.
The product has been designed and tested in accordance with international safety requirements. As
with all electrical or electronical devices, there are residual risks despite careful construction. To
prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
DANGER
Danger to life due to electric shock when live components or DC conductors
are touched
The DC conductors connected to a battery may be live. Touching live DC conductors results in
death or serious injury due to electric shock.
• Disconnect the product and battery 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.
• Observe all safety information of the battery manufacturer.
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 and the battery are integrated into the existing
surge protection.
• When laying the network cables or other data cables outdoors, it must be ensured that a
suitable surge protection device is provided at the transition point of the cable from the
product or the battery outdoors to the inside of a building.
• The Ethernet interface of the inverter is classified as "TNV-1" and offers protection against
overvoltages of up to 1.5kV.
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2 Safety
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1210
WARNING
Danger to life due to fire or explosion when batteries are fully discharged
A fire may occur due to incorrect charging of fully discharged batteries. This can result in death
or serious injury.
• Before commissioning the system, verify that the battery is not fully discharged.
• Do not commission the system if the battery is fully discharged.
• If the battery is fully discharged, contact the battery manufacturer for further proceedings.
• Only charge fully discharged batteries as instructed by the battery manufacturer.
WARNING
Danger to life due to burns caused by electric arcs through short-circuit
currents
Short-circuit currents in the battery can cause heat build-up and electric arcs. Heat build-up and
electric arcs may result in lethal injuries due to burns.
• Disconnect the battery from all voltages sources prior to performing any work on the
battery.
• Observe all safety information of the battery manufacturer.
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 when
attaching it to or removing it from the wall mounting bracket.
• 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.
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2 Safety
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 11
NOTICE
Damage to the enclosure seal in subfreezing conditions
If you open the product or disconnect the PowerUnit and ConnectionUnit when temperatures
are below freezing, the enclosure seals can be damaged. Moisture can penetrate the product
and damage it.
• Only open the product if the ambient temperature is not below 0°C (32°F).
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing,
remove it prior to opening the product (e.g. by melting the ice with warm air). Observe the
applicable safety regulations.
• Do not disassemble the PowerUnit and ConnectionUnit unless the ambient temperature is
at least 0°C (32°F) and conditions are frost-free.
NOTICE
Damage to the product due to sand, dust and moisture ingress
Sand, dust and moisture penetration can damage the product and impair its functionality.
• Only open the product if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the product during a dust storm or precipitation.
• Close tightly all enclosure openings.
• Only use listed rain-tight or liquid-tight conduit fittings to attach the conduits to the product.
NOTICE
Damage due to cleaning agents
The use of cleaning agents may cause damage to the product and its components.
• Clean the product and all its components only with a cloth moistened with clear water.
NOTICE
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any component.
NOTICE
Destruction of the measuring device due to overvoltage
• Only use measuring devices with a DC input voltage range of 600V or higher.
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2 Safety
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1212
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.
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3 Scope of Delivery
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 13
3 Scope of Delivery
B
TOP
A
(Name des Gerätes):
Bitte füllen Sie die folgenden Felder aus:
:
Typ:
Seriennummer:
Datum der Inbetriebnahme:
Anschrift:
Installationsbetrieb
T
yp:
Seriennummer:
Datum der Inbetriebnahme:
Anschrift:
Installationsbetrieb
Gewährleistungs- und Garantiebedingungen
D
I
C
J
M
LK
E
H
F
L1 N L2
G
N
O
Figure 1 : Components included in the scope of delivery
Position Quantity Designation
A 1 Inverter
B 1 Wall mounting bracket
C 1 Cylindrical screw M5x60
D 1 Installation manual, production test report, supplementary sheet with
the default settings
E 1 4-pole terminal block for connecting a RS485 energy meter
F 1 Terminal block for the AC connection
G 1 Terminal block for connecting the outlet for secure power supply op-
eration
H 4 6-pole terminal block for connecting the battery communication ca-
bles and the communication cable of the automatic transfer switch
I 1 2-pole terminal block for the switch connection for secure power
supply operation or for black start feature.
J 5 Clamping bracket
K 5 Cylindrical screw M5x16
L 5 Washer M5
M 5 Spring washer M5
N 1 Ferrite
O 1 Cable tie
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4 Product Overview
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1214
4 Product Overview
4.1 Product Description
The SunnyBoyStorage uses the connected battery for the intermediate storage of excess PV
energy in the SMAFlexibleStorageSystem. For this purpose, the SunnyBoyStorage receives the
feed-in data and purchased electricity data from the energy meter. This data is used by the
SunnyBoyStorage to control the charging and discharging of the battery.
The use of an automatic transfer switch is required in the battery-backup system. In the event of grid
failure, the automatic transfer switch disconnects the PV system, loads and the SunnyBoyStorage
from the utility grid and creates a battery-backup grid. The battery-backup grid supplies loads that
should continue to be supplied with electricity in the event of grid failure. In the event of grid failure,
the SunnyBoyStorage supplies the loads with energy after a short switching time. The PV system
supplies additional energy that can be used to supply the loads and charge the battery.
Secure power supply operation in FlexibleStorageSystems with backup
power supply not possible
If the inverter is used in a battery-backup system and connected with an automatic transfer
switch, the secure power supply operation is not available.
B
F
C
H
G
A
E
D
Figure 2 : 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
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4 Product Overview
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 15
Position Designation
F Type label
The type label uniquely identifies the inverter. The type label must remain
permanently attached to the product. You will find the following information on the type label:
• Inverter device type (Model)
• Serial number of the PowerUnit (Serial No. Power Unit or S/N
Power Unit)
• Date of manufacture
• Device-specific characteristics
G 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
H LEDs
The LEDs indicate the operating state of the inverter.
4.2 Symbols on the Product
Symbol Explanation
Beware of electrical voltage
The product operates at high voltages.
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.
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4 Product Overview
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1216
Symbol Explanation
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 connection.
Equipment Grounding Terminal
This symbol indicates the position for the connection of an equipment ground-
ing conductor.
The product is has no galvanic isolation.
UL1741 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
IEEE1547.
4.3 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 nominal energy
throughput and state of charge of the battery on the user interface login page. You therefore have
an overview of the most important inverter and battery 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 SMASpeedwire as standard. SMASpeedwire is a type of
communication based on the Ethernet standard. SMASpeedwire is designed for a data transfer
rate of 100Mbps and enables optimum communication between Speedwire devices within
systems.
Class 1 wiring methods are to be used for field wiring connection to the terminals of the
communication interface.
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4 Product Overview
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 17
SMA Webconnect
The inverter is equipped with a Webconnect function as standard. The Webconnect function
enables direct data transmission between the inverters and Internet portals SunnyPortal and
SunnyPlaces without any additional communication device and for a maximum of 1 inverters per
visualized system. In PV systems with more than 1 inverters, there is the option of establishing data
transmission between the inverters and SunnyPortal via the data logger (e.g.,
SMADataManager) or distributing the inverters over several systems. If there is an existing WLAN
or Ethernet connection, you can directly access your visualized system via the web browser on your
end device.
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.
Modbus
The product is equipped with two Modbus interfaces.
One interface can be controlled via Ethernet and the other interface via RS485. The Modbus
interface via Ethernet is designed for industrial use – via SCADA systems, for example – and
deactivated as standard. The Modbus interface via Ethernet must be configured via the user
interface of the inverter (if necessary). The Modbus interface via RS485 is used for data exchanges
with an energy meter. The Modbus interface via RS485 must be configured via the user interface of
the inverter and set on the energy meter accordingly.
The Modbus interface via Ethernet has the following tasks:
• Remote query of measured values
• Remote setting of operating parameters
• Setpoint specifications for system control
• Controlling the battery
Grid Management Services
The inverter is a grid support multi-mode inverter.
The inverter was tested in accordance with the UL1741 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.
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4 Product Overview
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1218
Secure power supply operation
In case of a grid failure, the secure power supply operation supplies the loads with energy from the
battery. You can connect a standard outlet and a standard switch to the inverter. You can connect
a load with a maximum of 16A and 120V to the outlet. The load is supplied with energy form the
battery during grid failure. The switch is used to activate and deactivate secure power supply
operation.
The secure power supply operation is not automatically activated in the event of a grid failure,
neither is it automatically deactivated once the utility grid is available again. If the utility grid fails,
the load supply must be activated manually by activating the switch. The inverter automatically
regulates the energy supply of the outlet after activating the switch. When the utility grid is
available again and the load can be supplied by this again, the secure power supply operation
must be deactivated manually by switching the switch off.
During active secure power supply operation, the inverter is disconnected from the electricity and
does not therefore feed into the utility grid. During secure power supply operation, the load can
only be supplied with energy as long as there is stored energy available in the battery. If there is
insufficient energy available from the battery, the secure power supply operation remains active,
even if the utility grid is available again. Switching over to supplying the load from the utility grid
does not take place automatically. Once the battery is sufficiently charged again and the load can
be supplied, the secure power supply operation must be restarted.
Secure power supply operation in FlexibleStorageSystems with backup
power supply not possible
If the inverter is used in a battery-backup system and connected with an automatic transfer
switch, the secure power supply operation is not available.
Do not connect any loads that require a stable energy supply
The secure power supply operation and the battery-backup operation may not be used for
loads that require a stable energy supply. The energy that is available during the secure
power supply operation or battery-backup operation depends on the battery capacity
available and the state of charge of the battery (SOC).
• Do not connect loads if they are dependent on a stable energy supply for reliable
operation.
Battery-backup function
The inverter is equipped with a battery-backup function. The battery-backup function is deactivated
by default and must be activated via the user interface. The battery-backup function can only be
activated if the inverter is operated in a battery-backup system with an automatic transfer switch. If
the system is retrofitted with an automatic transfer switch, the battery configuration must be reset
and carried out once again. Then the battery-backup system must be configured. The configuration
is carried out via the installation assistant on the user interface of the battery inverter.
The battery-backup function ensures that the inverter forms a battery-backup grid that uses energy
from the battery and the PV system to supply the household grid in the event of a utility grid failure.
When the battery-backup operation is activated, the automatic transfer switch disconnects the PV
system and the household grid from the utility grid in the event of a grid failure, and connects these
to the battery-backup grid. After a short switch-over time, the battery-backup grid and loads
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4 Product Overview
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 19
connected can be supplied by the battery and supplemented with energy from the PV system. The
charging of the battery is ensured by the existing PV system during battery-backup operation. The
charging process of the battery (initiated by the PV system) can be deactivated via a certain
parameter during battery-backup operation. As soon as the utility grid is available again, the
battery-backup operation is deactivated automatically and the loads are supplied with energy from
the utility grid. If the automatic battery-backup operation is not set, the battery-backup operation
must be manually activated in the event of a grid failure, and must also be deactivated again once
the utility grid is available (information in terms of switching operations of the automatic transfer
switch and procedures during grid failure and grid reconnection see planning guidelines
"SMAFLEXIBLESTORAGESYSTEM with Battery-Backup Function").
When the utility grid is down and the battery discharged, there is, in the beginning, not enough
power available to create a stable battery-backup grid. In this case, the battery must be charged by
the PV system. The battery inverter is able to create a stable battery-backup grid only when enough
power is available in the battery. To use battery charging power from the PV system, the battery
inverter has to create a stand-alone grid. For this purpose, the battery inverter requires energy from
the battery reserve. If enough PV power is available, the PV inverters start automatically and the
battery is charged with energy from the PV system. The battery is charged with energy until the
battery inverter is able to provide a battery-backup grid. The state of charge can be configured via
certain parameter. If not enough PV energy is available to start the PV inverters, the stand-alone
grid breaks down. Two hours later, the battery inverter tries to start the PV inverter again to charge
the battery with energy from the PV system. If the battery inverter still fails to create a stand-alone
grid after several attempts due to insufficient PV energy, the battery inverter and battery switch to
sleep mode. In this case, a manual black start is required to switch the battery inverter and battery
from sleep mode back to operation.
An updated list of automatic transfer switches approved by SMA Solar Technology AG is available
at www.SMA-Solar.com. You are not allowed to install automatic transfer switches for operation
with this inverter by yourself on the basis of a circuit diagram.
Secure power supply operation in FlexibleStorageSystems with backup
power supply not possible
If the inverter is used in a battery-backup system and connected with an automatic transfer
switch, the secure power supply operation is not available.
Do not connect any loads that require a stable energy supply
The secure power supply operation and the battery-backup operation may not be used for
loads that require a stable energy supply. The energy that is available during the secure
power supply operation or battery-backup operation depends on the battery capacity
available and the state of charge of the battery (SOC).
• Do not connect loads if they are dependent on a stable energy supply for reliable
operation.
Black start function
The inverter has a black start function and an auxiliary battery that provides energy for the black
start. In battery-backup systems, you have the possibility to install a standard switch for black
starting the inverter and battery. The black-start switch is used to start the battery-backup operation
manually in the event of grid failure if the battery and inverter are in sleep mode and, therefore, are
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4 Product Overview
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1220
unable to provide energy. When the black-start switch is switched on manually, the energy from the
auxiliary battery is made available in order to automatically switch the battery and therefore also
the inverter from sleep mode to operation in order that the inverter can make energy available from
the battery. You can stop the battery-backup operation by switching it off manually. To enable the
black-start function, at least one battery must be connected to input A.
Multi-battery device
The product is equipped with the multi-battery function as standard from firmware version
1.50.10.R. The multi-battery function enables to charge and discharge several batteries of the same
or different type. If the system is extended by one or several batteries or one battery is replaced,
the battery configuration must be reset and carried out again. The configuration is carried out via
the installation assistant on the user interface of the battery inverter. An overview of batteries
approved by SMA Solar Technology AG and their possible combinations is available at
www.SMA-Solar.com.
SMA Smart Connected
SMA Smart Connected is the free monitoring of the inverter via the SMA SunnyPortal. Thanks to
SMA Smart Connected, the PV system operator and qualified person will be informed automatically
and proactively about inverter events that occur.
SMA Smart Connected is activated during registration in SunnyPortal. In order to use SMA Smart
Connected, it is necessary that the inverter is permanently connected to SunnyPortal and the data
of the PV system operator and qualified person is stored in SunnyPortal and up-to-date.
Time-of-Use
With the "Time-of-Use" function, you can adjust the charging behavior of the battery to your
electricity tariff. Energy bills are thus reduced and electricity at lower cost can be used. You can
determine in which time range the battery with a specified charging power is operated. At specific
times, this is mostly useful when the battery's state of charge has to take on a certain value or the
tariff situation makes the charging more attractive, regardless of the power at the grid-connection
point. This means that the charging of the battery is independent from the power of the PV system
and energy consumption of the loads connected in the house. The charging parameters set in the
power profile are only limited by the state of charge (SOC). At times when the "Time-of-Use"
function is not activated, the battery is charged correspondent to the increased self-consumption for
the entire system. The "Time-of-Use" function is deactivated by default and must be activated by
creating power profiles.
Peak load shaving
With the "Peak Load Shaving" function, you can optimize the behavior of the battery inverter with
respect to the power exchange at the grid-connection point. This is mostly useful when a higher
supply of energy would lead to a higher electricity tariff. With the "Peak Load Shaving" function,
certain grid-exchange power outputs to which the battery inverter is adjusted depending on its
power and battery capacity available can be set. Power peaks can thus be avoided.
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4 Product Overview
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 21
You can configure times and setpoints for the power drawn at the grid-connection point. When the
loads require additional energy, the battery is discharged and the maximum value is kept constant
at the grid-connection point This is based on the prerequisite that the battery is sufficiently charged.
At times when the "Peak Load Shaving" function is not activated, the battery is charged or
discharged correspondent to the increased self-consumption for the entire system. The "Peak Load
Shaving" function is deactivated by default and must be activated by creating power profiles.
Frequency Shift Power Control
If PV inverters are connected on the AC side during battery-backup operation, the battery inverter
must be able to limit their output power. This limitation becomes necessary when, for example, the
battery inverter's battery is fully charged and the power available from the PV system exceeds the
power requirement of the connected loads.
To prevent excess energy from overcharging the battery, the battery inverter automatically detects
the problem and changes the frequency at the AC output. This frequency adjustment is analyzed by
the PV inverter. As soon as the power frequency of the battery-backup grid increases beyond the
value specified in f Start Delta, the PV inverter limits its output power accordingly.
The frequency shift power control is activated by default. No additional settings must be carried
out. It must be ensured that the connected PV inverters limit their power at the AC output via the
battery inverter due to changes in frequency. The frequency-dependent active power limitation P(f)
must be set in the PV inverter.
50
100
+4+3+2+10−1−2−3−4
f Limit Delta (2 Hz)
f Start Delta (1 Hz)
f [Hz]
PAC [%]
f Delta− (4.5 Hz)
f Delta+ (4.5 Hz)
Figure 3 : Impact of the frequency shift power control on the power output of a PV inverter
Designation Explanation
f
Base frequency of the stand-alone grid (50Hz)
fDelta- to fDelta+
Maximum range in relation to the base frequency in which the PV inverter
is active.
fStartDelta
Frequency increase in relation to the base frequency, at which point the
power regulation via frequency begins.
fLimitDelta
Frequency increase in relation to the base frequency, at which point the
power regulation via frequency ends.
The power of the PV inverter at this point is 0W.
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4 Product Overview
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1222
4.4 LED Signals
LED signal Explanation
The green LED is flashing
(twoseconds on and
twoseconds 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 is flashing
(1.5s on and 0.5s off)
Secure power supply operation or battery-backup function
The secure power supply operation or battery-backup function is ac-
tivated and the inverter supplies the loads with energy from the battery.
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 Parallel grid operation
The green LED is off The inverter is not feeding into the utility grid.
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 inverter user inter-
face or in the communication product.
The blue LED flashes slowly
for approx. one minute
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).
The blue LED flashes quickly
for approx. two minutes.
WPS active
The WPS function is active.
The blue LED is glowing Communication active
There is an active connection with a local network or there is a di-
rect connection with an end device via Ethernet (e.g. computer,
tablet PC or smartphone).
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4 Product Overview
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 23
4.5 System Structure
Flexible Storage System
120 V / 16 A
SUNNY BOY US
Ethernet
RS485
CAN
SUNNY PORTAL/
SUNNY PLACES
SUNNY BOY
STORAGE US
Com
INTERNET
UTILITY
GRID
PV MODULES
UTILITY
METER
LARGE LOAD
SECURE
POWER SUPPLY
ROUTER
BATTERY
ENERGY
METER
AC
DC
Figure 4 : System design of a flexible storage system with switch and outlet for secure power supply operation
(example)
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4 Product Overview
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1224
SMAFlexibleStorageSystem with Battery-Backup Function
SUNNY PORTAL/
SUNNY PLACES
INTERNET
SUNNY BOY US
Ethernet
RS485
CAN
Com
BACKUP
SUNNY BOY
STORAGE US
UTILITY
GRID
PV MODULES
UTILITY
METER
LARGE LOAD
ROUTER
BATTERY
AC
DC
ENERGY
METER
Figure 5 : System design of a flexible storage system with battery-backup function (example)
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5 Mounting
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 25
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.
• Do not mount the product in areas containing highly flammable materials or gases.
• Do not mount the product in potentially explosive atmospheres.
☐ A solid support surface must be available (e.g. concrete or masonry, free-standing
constructions). When mounted on drywall or similar materials, the inverter emits audible
vibrations during operation which could be perceived as annoying.
☐ The installation site can be exposed to direct solar irradiation. There is, however, the possibility
that the product reduces its power output to avoid overheating due to high temperatures.
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.
15°
Figure 6 : Permitted and prohibited mounting positions
☐ Do not mount multiple inverters directly above one another.
SUNNY BOY
SUNNY BOY
SUNNY BOY
SUNNY BOY
SUNNY BOY
SUNNY BOY
SUNNY BOY
SUNNY BOY
Figure 7 : Permissible and impermissible mounting positions of multiple inverters
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5 Mounting
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1226
Dimensions for mounting:
365
(14.37)
306
(12.05)
362.4
(14.27)
411
(16.18)
Ø 9
(0.35)
9 x 18
(0.35 x 0.71)
61
(2.40)
32.8
(1.29)
46
(1.81)
46
(1.81)
140
(5.51)
290
(11.42)
439.6
(17.31)
74.6
(2.94)
266
(10.5)
Figure 8 : Position of the anchoring points(Dimensions in mm (in))
Recommended Clearances:
To guarantee optimal operation and adequate heat dissipation for the inverter, the following
requirements for clearances should be observed. This will prevent the inverter power output from
being reduced due to excessive temperatures. However, smaller clearances are permitted without
causing any risk.
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5 Mounting
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 27
Prescribed clearances in accordance with the
National Electrical Code
®
or
Canadian Electrical Code
®
CSA C22.1
Under certain conditions, the National Electrical Code® or the Canadian Electrical Code
®
CSA C22.1 specify greater clearances.
• Ensure that the prescribed clearances in accordance with the National Electrical Code
®
or Canadian Electrical Code® CSA C22.1 are adhered to.
☐ Maintain the recommended clearances to walls as well as to other inverters or objects.
☐ If multiple inverters are mounted in areas with high ambient temperatures, increase the
clearances between the inverters and ensure sufficient fresh-air supply.
700
(27.56)
600
(23.62)
550
(21.64)
500
(19.69)
550
(21.64)
Figure 9 : Recommended clearances(Dimensions in mm (in))
5.2 Mounting the Inverter
Additionally required mounting material (not included in the scope of delivery):
☐ Three screws suitable for the support surface (diameter: 8mm (5/16in))
☐ Three washers suitable for the screws
☐ Where necessary, 3 screw anchors suitable for the support surface and the screws
☐ To secure the inverter against theft: one padlock suitable for outdoor use
☐ Padlock dimensions:
– Diameter of the shackle: 8mm to 10mm (0.31in to 0.39in)
– Width of the shackle (inner dimension): 30mm to 40mm (1.18in to 1.57in)
– Height of the shackle (inner dimension): 30mm to 40mm (1.18in to 1.57in)
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5 Mounting
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1228
CAUTION
Risk of injury due to weight of product
Injuries may result if the product is lifted incorrectly or dropped while being transported or when
attaching it to or removing it from the wall mounting bracket.
• 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.
The Connection Unit and Power Unit can be disconnected from one another
to make mounting easier
If the local conditions make it difficult to mount the entire inverter, you can disconnect the
Connection Unit and Power Unit from each other if the ambient temperature is at least 0°C
(32°F) and there is no frost. This way, you can transport each enclosure part and also attach
to the wall mounting bracket individually. Then, during assembly, both enclosure parts must be
joined again. A detailed description for how to disconnect the Connection Unit and Power
Unit from each other and to individually mount them to the wall mounting bracket can be
found on the Internet under www.SMA-Solar.com.
Procedure:
1.
CAUTION
Risk of injury due to damaged cables
There may be power cables or other supply lines (e.g. gas or water) routed in the wall.
• Ensure that no lines are laid in the wall which could be damaged when drilling holes.
2. Align the wall mounting bracket horizontally on the
wall and use it to mark the position of the drill holes.
Here, use at least one hole each, to the right and
left, and the hole at the bottom center.
3. Set the wall mounting bracket aside and drill the marked holes.
4. Insert screw anchors into the drill holes if the support surface requires them.
5. Secure the wall mounting bracket horizontally using screws and washers.
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5 Mounting
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 29
6. Hook the inverter into the wall mounting bracket.
Here, the lugs on the rear side of the Power Unit
must be hooked into the upper recesses and the lugs
in the Connection Unit into the lower recesses in the
wall mounting bracket.
T
OP
7. Check whether the inverter is securely in place.
If the Connection Unit can be moved forward, the lugs on the rear side of the Connection Unit
are not hooked into the lower recesses in the wall mounting bracket. Remove the inverter from
the wall mounting bracket and hook it in again.
Once the Connection Unit cannot be moved forward, the inverter is securely in place.
8. Secure the inverter to the wall mounting bracket. To
do this, insert the screw M5x60 through the hole on
the left side of the PowerUnit using a Torx
screwdriver (TX25) and tighten it (TX25, torque: 1.7
Nm ± 0.3Nm (15.06in-lb ± 2.65in-lb)).
9. If the inverter is to be protected against theft, attach a padlock:
• To do this, guide the shackle of the padlock
through the provided hole on the left side of the
Power Unit and close the shackle.
• Keep the key of the padlock in a safe place.
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6 Electrical Connection
SMA Solar Technology AG
Installation ManualSBSxx-US-10-IA-xx-1230
6 Electrical Connection
6.1 Overview of the Connection Area
6.1.1 View from Below
B
A
C D
Figure 10 : Enclosure openings at the bottom of the inverter
Position Designation
A Enclosure opening for DC connection (for 21mm (0.75in) trade size
conduits)
B Enclosure opening for the battery communication cable (for 21mm
(0.75in) trade size conduits)
C Enclosure opening for the network cables and, if needed, for other data
cables (for 21mm (0.75in) trade size conduits)
D Enclosure opening for AC connection, connection cables of the outlet
and switch for the secure power supply operation or for the connection
cable of the switch for black start (for 21mm (0.75in) trade size conduits)
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