SMA COMMERCIAL STORAGE SOLUTION 30 User guide

System Manual
SMA COMMERCIAL STORAGE SOLUTION 30 / 50
ESSX-30-20 / ESSX-50-20
ESSX-20-SH-en-10 | Version 1.0ENGLISH

Legal Provisions SMA Solar Technology AG
System ManualESSX-20-SH-en-102
Legal Provisions
The information contained in these documents is the property of SMA Solar Technology AG. No part of this document
may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, be it electronic,
mechanical, photographic, magnetic or otherwise, without the prior written permission of SMA Solar Technology AG.
Internal reproduction used solely for the purpose of product evaluation or other proper use is allowed and does not
require prior approval.
SMA Solar Technology AG makes no representations or warranties, express or implied, with respect to this
documentation or any of the equipment and/or software it may describe, including (with no limitation) any implied
warranties of utility, merchantability, or fitness for any particular purpose. All such representations or warranties are
expressly disclaimed. Neither SMA Solar Technology AG nor its distributors or dealers shall be liable for any indirect,
incidental, or consequential damages under any circumstances.
The exclusion of implied warranties may not apply in all cases under some statutes, and thus the above exclusion may
not apply.
Specifications are subject to change without notice. Every attempt has been made to make this document complete,
accurate and up-to-date. Readers are cautioned, however, that product improvements and field usage experience may
cause SMA Solar Technology AG to make changes to these specifications without advance notice or per contract
provisions. SMA Solar Technology AG shall not be responsible for any damages, including indirect, incidental or
consequential damages, caused by reliance on the material presented, including, but not limited to, omissions,
typographical errors, arithmetical errors or listing errors in the content material.
SMA Warranty
You can download the current warranty conditions from the Internet at www.SMA-Solar.com.
Software licenses
The licenses for the installed software modules (open source) can be found in the user interface of the product.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not mean that a
product or brand is not a registered trademark.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Phone [phone]
Fax [phone]
www.SMA.de
E-mail: [email protected]
Status: 7/25/2023
Copyright © 2023 SMA Solar Technology AG. All rights reserved.

Table of contents
SMA Solar Technology AG
System Manual 3ESSX-20-SH-en-10
Table of contents
1 Information on this Document..................................................................................................... 8
1.1 Validity.............................................................................................................................................................. 8
1.2 Target Group ................................................................................................................................................... 8
1.3 Content and Structure of this Document......................................................................................................... 8
1.4 Levels of Warning Messages.......................................................................................................................... 8
1.5 Symbols in the Document................................................................................................................................ 9
1.6 Typographical Elements in the Document ...................................................................................................... 9
1.7 Designations in the Document......................................................................................................................... 9
1.8 Explanation of Used Terms ............................................................................................................................. 10
1.9 Additional Information..................................................................................................................................... 10
2 Safety ............................................................................................................................................ 12
2.1 Intended Use.................................................................................................................................................... 12
2.2 IMPORTANT SAFETY INSTRUCTIONS ......................................................................................................... 13
3 Scope of Delivery......................................................................................................................... 20
3.1 Overview of the Scope of Delivery ................................................................................................................ 20
3.2 Scope of Delivery of the Inverter .................................................................................................................... 20
3.3 Scope of Delivery of the Battery Cabinet....................................................................................................... 22
3.4 Scope of Delivery of the Battery Management System ................................................................................ 23
3.5 Scope of Delivery of a Battery Module ......................................................................................................... 23
3.6 Accessory Kit for Battery ................................................................................................................................. 24
3.7 Optional: Scope of Delivery of the DC Distributor........................................................................................ 26
4 Additionally Required Materials and Equipment...................................................................... 27
5 Product Overview........................................................................................................................ 29
5.1 System Components ........................................................................................................................................ 29
5.2 System overview .............................................................................................................................................. 30
5.2.1 Sunny Tripower Storage X as System Manager ........................................................................................... 30
5.2.2 Sunny Tripower Storage X with SMA DATA MANAGER M ....................................................................... 31
5.3 Design of the Inverter ...................................................................................................................................... 31
5.4 Interfaces and Functions of the Inverter.......................................................................................................... 32
5.4.1 Sunny Tripower Storage as System Manager .............................................................................................. 32
5.4.2 User Interface .................................................................................................................................................. 32
5.4.3 SMA Speedwire.............................................................................................................................................. 32
5.4.4 Wi-Fi connection to SMA 360° app and SMA Energy app....................................................................... 33
5.4.5 Device Key (DEV KEY).................................................................................................................................... 33
5.4.6 Modbus ........................................................................................................................................................... 33
5.4.7 Grid Management Services ........................................................................................................................... 33
5.4.8 Communication with the SMA Data Manager M/L..................................................................................... 33
5.4.9 Integrated Plant Control.................................................................................................................................. 33
5.4.10 Increased self-consumption............................................................................................................................. 33
5.4.11 Peak load shaving........................................................................................................................................... 34
5.5 LED Signals of the Inverter .............................................................................................................................. 34
5.6 Symbols on the Inverter................................................................................................................................... 35
5.7 Design of the Battery Cabinet......................................................................................................................... 36
5.8 Modular Extension of the Battery ................................................................................................................... 37
5.9 LED Signals of the Battery ............................................................................................................................... 37
5.10 Symbols on the battery.................................................................................................................................... 38

Table of contents SMA Solar Technology AG
System ManualESSX-20-SH-en-104
6 Transporting the battery.............................................................................................................. 40
7 Mounting and Preparing the Connection .................................................................................. 42
7.1 Requirements for Mounting............................................................................................................................. 42
7.1.1 Product Mechanical Data............................................................................................................................... 42
7.1.2 Installation Plans.............................................................................................................................................. 42
7.1.3 Requirements for the mounting location of the inverter................................................................................. 45
7.1.4 Permitted and Prohibited Inverter Mounting Positions .................................................................................. 45
7.1.5 Inverter Mounting Dimensions........................................................................................................................ 46
7.1.6 Recommended Inverter Mounting Clearances.............................................................................................. 46
7.1.7 Requirements for the Battery Installation Site ................................................................................................ 47
7.1.8 Battery Cabinet Mounting Dimensions .......................................................................................................... 47
7.1.9 Recommended Battery Mounting Clearances .............................................................................................. 48
7.1.10 Requirements for the Temperature and Humidity Sensor Installation Site ................................................... 48
7.2 Inverter Connecting Plate ................................................................................................................................ 49
7.3 Inverter Center of Gravity ............................................................................................................................... 49
7.4 Mounting Procedure........................................................................................................................................ 49
7.5 Mounting the Inverter ...................................................................................................................................... 50
7.5.1 Preparing for mounting and connection ........................................................................................................ 50
7.5.2 Mounting the Inverter...................................................................................................................................... 51
7.6 Mounting the Battery....................................................................................................................................... 54
7.6.1 Positioning the battery cabinet ....................................................................................................................... 54
7.6.2 Installing the battery management system..................................................................................................... 55
7.6.3 Installing the battery modules......................................................................................................................... 57
7.7 Mounting the DC Distributor ........................................................................................................................... 58
8 Electrical Connection.................................................................................................................... 60
8.1 Wiring Overview with One Battery Inverter .................................................................................................. 60
8.2 Wiring Overview with Two Battery Inverters ................................................................................................. 61
8.3 Connecting the Battery via a DC Distributor.................................................................................................. 62
8.4 Requirements for the electrical connection..................................................................................................... 62
8.4.1 Residual-current monitoring unit (RCMU) ...................................................................................................... 62
8.4.2 Overvoltage category..................................................................................................................................... 63
8.4.3 AC cable requirements ................................................................................................................................... 63
8.4.4 Network cable requirements .......................................................................................................................... 63
8.4.5 Battery data cable requirements .................................................................................................................... 63
8.4.6 Laying plan for network and battery data cables......................................................................................... 64
8.4.7 External I/O system ........................................................................................................................................ 64
8.4.8 DC cable requirements ................................................................................................................................... 64
8.5 Electrical Connection Procedure..................................................................................................................... 65
8.6 Connecting the Inverter ................................................................................................................................... 66
8.6.1 Overview of the Connection Area ................................................................................................................. 66
8.6.2 DC connection overview................................................................................................................................. 67
8.6.3 Connecting the AC Cable .............................................................................................................................. 67
8.6.4 Connecting the Network Cables.................................................................................................................... 68
8.6.5 Connecting the Data Cable of the Battery .................................................................................................... 71
8.6.6 Connecting the DC Cables............................................................................................................................. 74
8.7 Connecting the Battery.................................................................................................................................... 75
8.7.1 Connection Area of the Battery Management System ................................................................................. 75
8.7.2 Connection Area of a Battery Module .......................................................................................................... 77
8.7.3 Wiring of the Battery Modules....................................................................................................................... 78
8.7.4 Overview of Cable Entries.............................................................................................................................. 79
8.7.5 Earthing the battery cabinet ........................................................................................................................... 79
8.7.6 Communication Connection ........................................................................................................................... 80
8.7.6.1 Connecting the Battery Communication System within the Battery Cabinet ............................................... 80

Table of contents
SMA Solar Technology AG
System Manual 5ESSX-20-SH-en-10
8.7.6.2 Connecting the battery communication system to the inverter ..................................................................... 81
8.7.6.3 Overview of the CAN Communication System............................................................................................. 81
8.7.6.4 Connecting the CAN Communication System............................................................................................... 81
8.7.7 Connecting the DC Cables............................................................................................................................. 82
8.7.7.1 Safety when Connecting the DC Cables ....................................................................................................... 82
8.7.7.2 Connecting DC Cables within the Battery Cabinet....................................................................................... 83
8.7.7.3 Routing DC Cables to the Inverter or DC Distributor in the Battery Cabinet............................................... 84
8.7.7.4 Connecting DC Cables to the Inverter or DC Distributor in the Battery Cabinet ........................................ 85
8.7.8 Connecting the External Switch to the Battery Management System.......................................................... 85
8.8 Connecting the DC Distributor ........................................................................................................................ 86
8.8.1 Connection Area of the DC Distributor.......................................................................................................... 86
8.8.2 Connecting the DC Distributor........................................................................................................................ 86
9 Commissioning ............................................................................................................................. 88
9.1 Commissioning Procedure............................................................................................................................... 88
9.2 Checking the Mounting and Connection Work............................................................................................. 89
9.3 Commissioning the Inverter ............................................................................................................................. 90
9.3.1 Commissioning the Inverter............................................................................................................................. 90
9.3.2 Changing the Network Configuration ........................................................................................................... 91
9.3.3 Configuring the Inverter .................................................................................................................................. 91
9.4 Commissioning the Battery.............................................................................................................................. 92
9.4.1 Safety when Commissioning the Battery........................................................................................................ 92
9.4.2 CMV Measurement......................................................................................................................................... 92
9.4.3 Setting Option for Address and Terminator .................................................................................................. 93
9.4.4 Defaults for Addresses and Terminators ........................................................................................................ 93
9.4.5 Setting the Address and Terminator............................................................................................................... 94
9.4.6 Commissioning an Individual Battery Cabinet .............................................................................................. 95
9.4.7 Commissioning Secondary Battery Cabinets ................................................................................................ 96
9.4.8 Commissioning the Primary Battery Cabinet ................................................................................................. 97
9.5 Configuring the Temperature and Humidity Sensor ...................................................................................... 99
9.6 Registration in Sunny Portal............................................................................................................................. 99
9.6.1 Profiles for data communication..................................................................................................................... 99
9.6.2 Register as a new user in Sunny Portal.......................................................................................................... 100
9.6.3 Log in to Sunny Portal as an existing user ..................................................................................................... 100
9.6.4 Create new PV system .................................................................................................................................... 101
9.6.5 Add product to an existing system................................................................................................................. 101
10 Operation ..................................................................................................................................... 102
10.1 Safety Functions...............................................................................................................................................102
10.1.1 Setting the Safe State...................................................................................................................................... 102
10.1.2 Objective of a Safety Function....................................................................................................................... 102
10.1.3 Overview of Safety Functions......................................................................................................................... 102
10.2 Control Elements..............................................................................................................................................103
10.3 Activating the Battery Management System Display ....................................................................................104
10.4 Connecting to the Inverter User Interface ......................................................................................................104
10.4.1 Establishing a Direct Connection via Ethernet............................................................................................... 104
10.4.2 Establishing a Connection via Ethernet in the local network........................................................................ 104
10.4.3 Direct connection via Wi-Fi............................................................................................................................. 105
10.4.3.1 Information on Direct Connection via Wi-Fi................................................................................................... 105
10.4.3.2 Wi-Fi Connection via SMA 360° App .......................................................................................................... 105
10.4.3.3 Wi-Fi Connection via WPS ............................................................................................................................. 105
10.4.3.4 Wi-Fi Connection via Device-specific Wi-Fi Password (WPA2-PSK) ............................................................ 106
10.5 Design of the User Interface............................................................................................................................106
10.6 Changing the Password ..................................................................................................................................108
10.7 Country standard.............................................................................................................................................108

Table of contents SMA Solar Technology AG
System ManualESSX-20-SH-en-106
10.8 Energy management .......................................................................................................................................109
10.8.1 Home page of the energy management ....................................................................................................... 109
10.8.2 Overview of used energy management profiles........................................................................................... 110
10.8.3 Parameter description for peak load shaving ............................................................................................... 110
10.8.4 Creating a new energy management profile ................................................................................................ 111
10.8.5 Deactivating the energy management........................................................................................................... 112
10.8.6 Activating the energy management ............................................................................................................... 112
10.8.7 Changing an energy management profile .................................................................................................... 113
10.9 Configuring the battery ...................................................................................................................................113
10.10 Modbus function..............................................................................................................................................113
10.11 Updating Firmware with Update File via the User Interface.........................................................................114
10.12 Activating Speedwire encryption of the system communication...................................................................114
10.13 Backup file........................................................................................................................................................115
10.13.1 Function and content of the backup file......................................................................................................... 115
10.13.2 Creating a Backup File ................................................................................................................................... 115
10.13.3 Uploading the backup file.............................................................................................................................. 116
10.14 Resetting the product to default setting ..........................................................................................................116
10.15 Deleting the Admin Account ...........................................................................................................................116
10.16 Stopping the inverter .......................................................................................................................................117
10.17 Starting the inverter..........................................................................................................................................117
10.18 Restarting the Battery.......................................................................................................................................117
10.18.1 Options for Restarting the Battery .................................................................................................................. 117
10.18.2 Restarting the Battery on the Battery Management System ......................................................................... 117
10.18.3 Restarting the Battery via the Battery Monitoring Software ......................................................................... 118
11 Disconnecting from voltage sources........................................................................................... 119
11.1 Disconnecting the Inverter from Voltage Sources..........................................................................................119
11.2 Disconnecting the Battery from Voltage Sources...........................................................................................121
12 Battery Monitoring Software ...................................................................................................... 123
12.1 Menu Structure of the Battery Monitoring Software .....................................................................................123
12.2 Installing the Battery Monitoring Software.....................................................................................................123
12.3 Loading Default Parameters............................................................................................................................124
12.4 Changing the Network Configuration of the Battery ....................................................................................125
13 Cleaning and Maintenance......................................................................................................... 126
13.1 Safety Information for Cleaning and Maintenance.......................................................................................126
13.2 Maintenance Interval.......................................................................................................................................126
13.3 Cleaning and Maintenance Materials...........................................................................................................126
13.4 Torques.............................................................................................................................................................126
13.5 Cleaning and Maintenance Procedure..........................................................................................................127
13.6 Checking Electrical Connections.....................................................................................................................127
13.7 Performing a Visual Inspection of the Battery ................................................................................................128
13.8 Cleaning and Maintaining the Battery Cabinet.............................................................................................128
13.9 Cleaning and Maintaining the Battery Management System ......................................................................129
13.10 Cleaning and Maintaining the Battery Modules ...........................................................................................130
13.11 Documenting the System Status......................................................................................................................130
13.12 Cleaning the fans of the inverter.....................................................................................................................130
13.13 Checking the fans of the inverter ....................................................................................................................132
14 Troubleshooting ........................................................................................................................... 133
14.1 Displaying Event Messages ............................................................................................................................133

Table of contents
SMA Solar Technology AG
System Manual 7ESSX-20-SH-en-10
14.2 Inverter Event Messages .................................................................................................................................133
14.3 Battery Event Messages ..................................................................................................................................152
14.4 Replacing the Surge Arrester ..........................................................................................................................167
14.5 Cleaning the fans of the inverter.....................................................................................................................168
15 Decommissioning ......................................................................................................................... 171
15.1 Disconnect the terminals on the inverter.........................................................................................................171
15.2 Disconnecting the Connections on the Battery ..............................................................................................173
15.3 Disassembling the Inverter...............................................................................................................................174
15.4 Disassembling the Battery ...............................................................................................................................176
16 Extension of the Battery .............................................................................................................. 178
16.1 Safety when Extending the Battery.................................................................................................................178
16.2 Possible System Configurations ......................................................................................................................178
16.3 Requirements for Output Voltage and State of Charge................................................................................178
16.4 Installing an Additional Battery Module ........................................................................................................179
16.5 Installing an Additional Battery Cabinet ........................................................................................................180
17 Storage ......................................................................................................................................... 182
17.1 Climatic Conditions for Battery Storage.........................................................................................................182
17.2 Permitted storage positions of battery modules .............................................................................................182
17.3 Storing the Battery ...........................................................................................................................................182
18 Disposal ........................................................................................................................................ 183
18.1 Disposing of the Inverter..................................................................................................................................183
18.2 Specifications for Battery Disposal .................................................................................................................183
18.3 Disposing of the Battery ..................................................................................................................................183
19 Technical Data.............................................................................................................................. 184
19.1 Technical Data for Inverter..............................................................................................................................184
19.1.1 General Data .................................................................................................................................................. 184
19.1.2 DC Input........................................................................................................................................................... 185
19.1.3 AC Output ....................................................................................................................................................... 185
19.1.4 Efficiency.......................................................................................................................................................... 186
19.1.5 Protective Devices ........................................................................................................................................... 186
19.1.6 Climatic Conditions ......................................................................................................................................... 186
19.1.7 Torques ............................................................................................................................................................ 187
19.1.8 System Limits.................................................................................................................................................... 187
19.2 Technical Data for Battery...............................................................................................................................187
19.2.1 General Data for Battery................................................................................................................................ 187
19.2.2 DC connection................................................................................................................................................. 189
19.2.3 Efficiency.......................................................................................................................................................... 189
19.2.4 Climatic Conditions ......................................................................................................................................... 189
19.2.5 Battery extendability ....................................................................................................................................... 190
19.3 Technical Data for Energy Meter....................................................................................................................190
19.4 Technical Data for DC Distributor...................................................................................................................191
20 Accessories ................................................................................................................................... 192
21 EU Declaration of Conformity..................................................................................................... 193
22 UK Declaration of Conformity ....................................................................................................194
23 Contact .......................................................................................................................................... 195

1 Information on this Document SMA Solar Technology AG
System ManualESSX-20-SH-en-108
1 Information on this Document
1.1 Validity
This document is valid for:
• ESSX-30-20 (SMA Commercial Storage Solution 32kWh)
• ESSX-50-20 (SMA Commercial Storage Solution 56kWh)
1.2 Target Group
This document is intended for qualified persons and operators. 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 operators. Qualified persons must have the
following skills:
• Knowledge of how an inverter works and is operated
• 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, regulations, standards, and directives
• Knowledge of and compliance with this document and all safety information
• Successful participation in a certification training program for the SMA Commercial Storage Solution
1.3 Content and Structure of this Document
This document describes the mounting, installation, commissioning, configuration, operation, troubleshooting and
decommissioning of the product as well as the operation of the product user interface.
You will find the latest version of this document and further information on the product in PDF format 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.
NOTICE
Indicates a situation which, if not avoided, can result in property damage.

1 Information on this Document
SMA Solar Technology AG
System Manual 9ESSX-20-SH-en-10
1.5 Symbols in the Document
Icon Explanation
Information that is important for a specific topic or goal, but is not safety-relevant
☐
Indicates a requirement for meeting a specific goal
☑
Required result
Example
1.6 Typographical Elements in the Document
Typographical element Use Example
bold • Messages
• Terminals
• Elements on a user interface
• Elements to be selected
• Elements to be entered
• Connect the insulated conductors
to the terminals X703:1 to
X703:6.
• Enter 10 in the field Minutes.
>• Connects several elements to be
selected
• Go to Settings > Date.
[Button]
[Key]
• Button or key to be selected or pressed • Select [Enter].
# • Placeholder for variable components
(e.g., parameter names)
• Parameter WCtlHz.Hz#
1.7 Designations in the Document
Complete designation Designation in this document
SMA Commercial Storage Solution Commercial Storage Solution, system, product
Sunny Tripower Storage X Sunny Tripower Storage, battery inverter, inverter
SMA Commercial Storage Battery cabinet
SMA Commercial Storage Extension Battery module
BAT BREAKER Battery fuse protection, DC distributor
Dynamic Battery Optimizer DBO, DBO assembly
Active Power Unit APU, battery management system

1 Information on this Document SMA Solar Technology AG
System ManualESSX-20-SH-en-1010
1.8 Explanation of Used Terms
Term Explanation
Battery A battery for the purposes of this document consists of at least one battery cabi-
net with one battery management system and a number of battery modules. De-
pending on the system configuration, up to four battery cabinets can be wired to
form a battery.
Battery management system
(BMS)
Central processing unit of the battery cabinet (Accelerated Processing Unit,
APU).
Dynamic Battery Optimizer The Dynamic Battery Optimizer (DPO) assembly is part of the battery manage-
ment system. The DPO assembly controls and monitors the charging and dis-
charging of the battery cells.
State of charge The state of charge (SoC) indicates the amount of energy available in a battery,
expressed as a percentage. A state of charge of 100% is equivalent to a fully
charged battery. The battery management system is able to determine the state
of charge of a cell or battery module based on parameters, and to terminate
charging if required. This prevents overcharging of the battery. To prevent unnec-
essary stress on the cells, the software has the same function for discharging. The
manufacturer defines battery limit conditions, at which the system terminates
charging and discharging.
State of health The state of health (SoH) indicates the condition of a battery. By closely monitor-
ing the state of health, the battery management system is able to identify dispari-
ties in power at cell level and in this way detect damaged or defective cells. De-
pending on the severity of the fault, the battery inverter may become discon-
nected from the battery management system or the battery may be shut down.
Balancing Balancing is a battery management system function. It ensures that the charge is
split evenly between all battery cells within a battery module, all battery modules
within a battery cabinet, and all battery cabinets within a battery.
1.9 Additional Information
Additional information is available at www.SMA-Solar.com.
Title and information content Type of information
"PUBLIC CYBER SECURITY - Guidelines for a Secure PV System Communication" Technical Information
"SMA GRID GUARD 10.0 - Grid Management Services via Inverter and System
Controller"
Technical Information
"Efficiency and Derating"
Efficiency and derating behavior of the SMA inverters
Technical Information
"SMAModbus® Interface - ennexOS"
Information on the SMA Modbus interface
Technical Information
"SunSpec Modbus ®-interface - ennexOS"
Information on the SunSpec Modbus interface and on supported information
models
Technical Information
"SMASPEEDWIRE FIELDBUS" Technical information

1 Information on this Document
SMA Solar Technology AG
System Manual 11ESSX-20-SH-en-10
Title and information content Type of information
"SMA DATA MANAGER M" Operating manual
"System Configuration - SMA Commercial Storage Solution"
Overview of permitted system configurations within the SMA Commercial Stor-
age Solution (available in English only)
Technical Information

2 Safety SMA Solar Technology AG
System ManualESSX-20-SH-en-1012
2 Safety
2.1 Intended Use
The SMA Commercial Storage Solution is an energy management system for commercial uses, e.g., increased self-
consumption or peak shaving.
System requirements
With the product it is possible to feed the three-phase current directly into the low-voltage grid while complying with the
locally applicable connection requirements. If the product is operated with a medium-voltage transformer, the low-
voltage side must be configured in a star formation and the neutral point grounded.
The product must only be used as stationary equipment.
The product is not suitable for supplying life-sustaining medical devices. A power outage must not lead to personal
injury.
The product must not be used as an uninterruptible power supply.
Loads connected to the product must have an CE, RCM or UL identification label.
Communication cables, measuring lines, and control lines must always be laid separately from AC or DC cables to
prevent electromagnetic coupling to interference during data transmission and any resulting malfunctions.
No additional loads or components in the DC intermediate circuit may be connected between the battery and inverter.
Any changes to the system configuration must be agreed with SMA Solar Technology AG.
All components must remain within their permitted operating ranges and their installation requirements at all times.
The product must only be used in countries for which it is approved or released by SMA Solar Technology AG and the
grid operator.
The product is intended exclusively for use in industrial environments.
The product must not be exposed to corrosive atmospheres.
Battery inverter requirements
The SunnyTripowerStorage is an AC coupled battery inverter for parallel grid operation. The SunnyTripowerStorage
converts the direct current supplied by a battery into grid-compliant three-phase alternating current.
The inverter is intended for use in residential and industrial environments.
The inverter complies with DIN EN55011 of class B, group 1 as well as IEC 61000-6-3 and IEC 61000-6-2.
The inverter is suitable for operation in coastal installation according to IEC 61701 in corrosivity category C3.
The inverter is suitable for indoor and outdoor use.
The AC connection of the inverter must be installed with an external four-pole fuse protection (all line conductors and
neutral conductors).
The inverter is not equipped with an integrated transformer and therefore has no galvanic isolation. The inverter must
not be operated with batteries whose outputs are grounded. This can destroy the inverter. The inverter may be
operated with batteries whose enclosure is grounded.
The DC lines of the positive and negative pole must be shorter than 30m. In systems with 1 battery cabinet only, the
DC cabling between battery inverter and battery cabinet is secured at all poles through the battery management
system in the battery cabinet. In systems with more than one battery cabinet, the DC cabling between the battery
inverter and battery cabinet in the DC distributor must have all-pole fuse protection.
Battery requirements
SMA Commercial Storage is a lithium-ion battery. The battery components are designed in accordance with the state
of the art and the product-specific standards.
The battery meets the requirements of IEC61508 Parts 1 to 7 and complies with safety integrity level(SIL)1.

2 Safety
SMA Solar Technology AG
System Manual 13ESSX-20-SH-en-10
The battery is designed for use at altitudes of up to 2000m above mean sea level. Electrical safety cannot be
guaranteed at altitudes above 2000m.
The battery is suitable for indoor use only.
On flood plains, care must be taken to ensure that the battery is always installed in an elevated position and protected
from contact with water.
In accordance with IEC 62619, the battery is certified to safety integrity levelSIL1, and must therefore be installed in
a room with protection against fire. The locally applicable fire regulations must be observed.
Statutory warranty
Use SMA products only in accordance with the information provided in the enclosed documentation and with the
locally applicable laws, regulations, standards and directives. Any other application may cause personal injury or
property damage.
Alterations to the SMA products, e.g., changes or modifications, are only permitted with the express written permission
of SMA Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and in most cases
terminate the operating license. SMA Solar Technology AG shall not be held liable for any damage caused by such
changes.
Any use of the product other than that described in the Intended Use section does not qualify as appropriate.
The enclosed documentation is an integral part of this product. Keep the documentation in a convenient, dry place for
future reference and observe all instructions contained therein.
This document does not replace any regional, state, provincial, federal or national laws, regulations or standards that
apply to the installation, electrical safety and use of the product. SMA Solar Technology AG assumes no responsibility
for the compliance or non-compliance with such laws or codes in connection with the installation of the product.
2.2 IMPORTANT SAFETY INSTRUCTIONS
Keep the manual for future reference.
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, some residual risks remain despite careful construction. To prevent personal injury and property
damage and to ensure long-term operation of the product, read this section carefully and observe all safety
information at all times.
DANGER
Danger to life due to electric shock when live components or DC cables are touched
The DC cables connected to a battery may be live. Touching live DC cables results in death or serious injury due to
electric shock.
• Have the inverter and the battery mounted, installed and commissioned only by qualified persons with the
appropriate skills.
• Disconnect the system from voltage sources and make sure it cannot be reconnected before working on the
device.
• Do not touch non-insulated parts or cables.
• Wear suitable personal protective equipment for all work on the product.

2 Safety SMA Solar Technology AG
System ManualESSX-20-SH-en-1014
DANGER
Danger to life due to electric shock when live components are touched because the battery
grounding is connected to grounding conductor terminals
Due to the connection of the battery grounding to the grounding conductor terminals, high voltages might be
present on the enclosure of the inverter. Touching live parts and cables results in death or lethal injuries due to
electric shock.
• Only the grounding conductors of the AC power cables may be connected to the grounding conductor
terminals of the inverter.
• Ground the battery-storage system as described in this document.
• If the locally applicable standards and directives require battery grounding, connect the battery grounding to
the grounding busbar in the distributor.
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 inverter or the battery outdoors to the
inside of a building.
DANGER
Danger to life due to fire or explosion due to improper handling of the battery modules
Improper handling can cause the lithium inside the battery to ignite. This can cause a fire or explosion. Death or
lethal injuries due to hot or flying debris can result.
• Never use defective or damaged battery modules.
• Do not open, pierce, or drop battery modules.
• Do not install or operate the battery modules in potentially explosive atmospheres or areas of high humidity.
• Do not expose the battery modules to high temperatures.
• Never throw the battery modules on a fire.
• Store the battery modules dry and within the specified temperature range.
• If the battery goes on fire, use a CO2 fire extinguisher.
• If a fire breaks out in the vicinity of the battery, use an ABC fire extinguisher.

2 Safety
SMA Solar Technology AG
System Manual 15ESSX-20-SH-en-10
DANGER
Danger to life due to electric shock due to touching live parts of the battery modules
A high voltage is present at the DC terminals of each battery module. When the DC cables are installed within the
battery cabinet, the DC voltages of the individual battery modules add up. Touching the DC terminals or connected
DC cables results in death or lethal injuries due to electric shock.
• Do not touch any live components.
• Wear suitable personal protective equipment for all work on the product.
• Observe all warning messages on the product and in the documentation.
• Observe the local health and safety regulations.
DANGER
Danger to life due to electric shock due to touching live components or cables with insufficient
or no grounding
If there is insufficient or no earthing, high voltages can be present at the battery cabinet enclosure in the event of a
fault. Touching live parts and cables results in death or lethal injuries due to electric shock.
• Earth the battery cabinet.
• Earth the battery management system during installation.
WARNING
Risk of injury due to toxic substances, gases and dusts.
In rare cases, damage to components can result in the formation of toxic substances, gases, or dusts inside the
inverter or battery. Touching toxic substances and inhaling toxic gases and dusts can cause skin irritation, burns or
poisoning, trouble breathing and nausea.
• Do not expose the battery modules to severe jolts.
• Do not open, dismantle, or perform mechanical work on the battery modules.
• Only perform work on the inverter and battery (e.g., troubleshooting, repair work) when wearing personal
protective equipment for handling of hazardous substances (e.g., safety gloves, eye and face protection,
respiratory protection).
• Ensure that unauthorized persons have no access to the system.
• In case of contact with electrolyte, rinse the affected area immediately with water and consult a doctor without
delay.
WARNING
Danger to life due to fire when failing to observe torque specifications on live bolted
connections
Failure to follow the specified torques reduces the ampacity of live bolted connections and the contact resistances
increase. This can cause components to overheat and catch fire. Death or lethal injuries can result.
• Ensure that live bolted connections are always tightened with the exact torque specified in this document.
• Only use suitable tools when working on the device.
• Avoid repeated tightening of live bolted connections as this may result in inadmissibly high torques.

2 Safety SMA Solar Technology AG
System ManualESSX-20-SH-en-1016
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 inverter and battery from voltage sources before performing any work on the battery-storage
system.
• Remove watches, rings and other metal objects prior to carrying out any work on the battery.
• Use insulated tools and wear insulated gloves for all work on the battery.
• Do not place tools or metal parts on the battery modules or battery management system.
WARNING
Risk of injury due to the weight of the battery components
Injuries may result if the battery components are lifted incorrectly or dropped while being transported or installed.
• Transport and lift the battery components carefully. Take the weight of each individual component into account.
• Transport battery components individually only.
• Wear suitable personal protective equipment, at a minimum safety footwear with a non-slip sole and steel cap,
for all work on the battery.
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 measurement ranges designed for the maximum AC and DC voltage of the
inverter.
• Only use measuring devices with measurement ranges designed for the maximum DC voltage of the battery.
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.
• Put the battery into operation no longer than six months after delivery.
• If the battery is not put into operation within six months, contact Service to request reconditioning of the battery-
storage system.
• 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 Service.

2 Safety
SMA Solar Technology AG
System Manual 17ESSX-20-SH-en-10
CAUTION
Risk of injury due to the weight of the inverter
Injuries may result if the inverter is lifted incorrectly or dropped while being transported or when mounting it to the
wall mounting bracket.
• Transport and lift the inverter carefully. In doing so, keep in mind the weight of the inverter.
• Wear suitable personal protective equipment for all work on the product.
• Transport the inverter using the carrying handles or hoist. In doing so, keep in mind the weight of the inverter.
• Use all carrying handles provided during transport with carrying handles.
• Do not use the carrying handles as attachment points for hoist equipment (e.g. straps, ropes, chains). Insert eye
bolts into threads provided on top of the inverter to attach the hoist system.
CAUTION
Risk of burns due to hot inverter enclosure parts
Some parts of the inverter enclosure can get hot during operation. Touching hot enclosure parts can result in burn
injuries.
• During operation, do not touch any parts other than the enclosure lid of the inverter.
• Wait until the inverter has cooled down before touching the enclosure.
CAUTION
Risk of burns due to hot battery modules
The battery modules in the battery cabinet can get hot during operation. Touching hot battery modules can cause
burns.
• Keep the battery cabinet closed at all times during operation.
• Before opening the battery cabinet, wait until the battery modules have cooled down.
CAUTION
Risk of injury due to sharp edges
The battery components contain sheet metal parts with sharp edges. Touching the sharp-edged sheet metal parts
may result in injuries.
• Wear safety gloves for mounting and disassembling the battery.
NOTICE
Damage to the enclosure seal in subfreezing conditions
If you open the inverter when temperatures are below freezing, the enclosure seals can be damaged. This can lead
to moisture entering the inverter.
• Only open the inverter if the ambient temperature is not below -5°C.
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing, remove it prior to
opening the inverter (e.g. by melting the ice with warm air).

2 Safety SMA Solar Technology AG
System ManualESSX-20-SH-en-1018
NOTICE
Damage to the system due to sand, dust and moisture ingress
Sand, dust, and moisture penetration can damage the inverter and battery, thus impairing their functionality.
• Only open the inverter and battery cabinet if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the inverter and battery cabinet during a dust storm or precipitation.
• Close the inverter and battery cabinet in case of interruption of work or after finishing work.
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 inverter and all its components only with a cloth moistened with clear water.
• Clean all battery components with a dry cloth only.
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
Damage to the inverter due to switching operations on the transformer
If voltages are present in the inverter, switching operations on the transformer can lead to large fluctuations in the
voltage in the inverter. Large fluctuations in voltage can damage components in the inverter.
• Disconnect the inverter from voltage sources before performing any switching operations on the transformer.
NOTICE
Damage to assemblies caused by impact from test probes
When measuring voltages in the inverter, test probes must be used at measuring points within assemblies. The use of
test probes may damage the assemblies.
• Test probes are to be used only at measuring points specified in this document. Other parts (e.g. components)
must not be touched.
• Always move the test probes in the inverter slowly and carefully.
NOTICE
Damage to the battery due to incorrect installation or connection
The battery management system and battery modules can be damaged by incorrect installation or incorrect
electrical connection.
• Install the battery management system and battery modules in accordance with the specifications in this
manual only.
• Make all electrical connections on the battery management system and battery modules in accordance with
the specifications in this manual only.

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SMA Solar Technology AG
System Manual 19ESSX-20-SH-en-10
NOTICE
Damage to the battery due to short circuit
Incorrect assembly of the DC cables can trigger a short circuit. High currents due to short circuit lead to damage to
the battery modules or battery management system.
• Take the mechanical connector coding of the supplied DC cables into account. Do not use force when
connecting the DC cables.
• Always connect red DC cables to the red DC terminals.
• Always connect black DC cables to the black DC terminals.
• Always replace damaged battery modules without delay.
NOTICE
Damage to the battery modules due to moisture or corrosive substances
Moisture or corrosive substance penetration can damage the product and impair its functionality.
• Do not expose battery modules to rain and do not immerse in liquid.
• Do not expose battery cells to corrosive substances (e.g., ammonia, salt).
NOTICE
Property damage due to unauthorized access to the system on account of freely available
switch cabinet key
Parameters may be set incorrectly due to unauthorized access to the system on account of freely available switch
cabinet key. When parameters are set incorrectly, technical thresholds are being exceeded. An exceeding of
technical thresholds can lead to damage of the affected products.
• Remove the switch cabinet keys from the door locks.
• Store the switch cabinet keys in a safe place.
• Ensure that only qualified persons have access to the switch cabinet keys.
NOTICE
Damage to the display of the battery management system
The display of the battery management system can be damaged by inappropriate operation.
• To activate the display or confirm something, simply tap with the fingers on the highlighted area beside the
display.
• Do not tap directly on the display.
• Do not use objects to tap.

3 Scope of Delivery SMA Solar Technology AG
System ManualESSX-20-SH-en-1020
3 Scope of Delivery
3.1 Overview of the Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact the Service if the delivery is
incomplete or damaged. Never commission the battery if components are damaged.
Quantity Designation
1 Inverter (STPS30-20 or STPS50-20)1)
1 Energy meter: COM-EMETER-A-20 / COM-EMETER-B-20 / JANITZA-SP / CLCON-
PWRSUPPLY1)
1 For STPS30-20: Storage-30-20 battery cabinet 1)
For STPS50-20: Storage-50-20 battery cabinet1)
1 Battery management system
4 to 6 Battery modules for Storage-30-20 1)
7 to 10 Battery modules for Storage-50-201)
1 Accessory kit for battery
1 DC distributor1)
1 Accessory kit for DC distributor1)
Also see:
• Scope of Delivery of the Battery Cabinet⇒page22
• Scope of Delivery of the Battery Management System⇒page23
• Scope of Delivery of a Battery Module⇒page23
• Accessory Kit for Battery⇒page24
• Optional: Scope of Delivery of the DC Distributor⇒page26
• Scope of Delivery of the Inverter⇒page20
3.2 Scope of Delivery of the Inverter
Check the scope of delivery for completeness and any externally visible damage. Contact the Service if the delivery is
incomplete or damaged.
1) Depending on order option