SMA SUNNY TRIPOWER X 12 User manual

Operating manual
SUNNY TRIPOWER X 12 / 15 / 20 / 25
STPxx-50-BE-en-10 | Version 1.0ENGLISH

Legal Provisions SMA Solar Technology AG
Operating manualSTPxx-50-BE-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: 11/3/2022
Copyright © 2022 SMA Solar Technology AG. All rights reserved.

Table of Contents
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 3
Table of Contents
1 Information on this Document................................................. 6
1.1 Validity ........................................................................................................................ 6
1.2 Target Group.............................................................................................................. 6
1.3 Content and Structure of this Document ................................................................... 6
1.4 Levels of warning messages ...................................................................................... 6
1.5 Symbols in the Document .......................................................................................... 7
1.6 Typographical Elements in the Document................................................................. 7
1.7 Designations in the Document................................................................................... 7
2 Safety ........................................................................................ 8
2.1 Intended Use .............................................................................................................. 8
2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 9
3 Scope of Delivery..................................................................... 14
4 Product Overview.................................................................... 16
4.1 Product Description .................................................................................................... 16
4.2 Symbols on the Product ............................................................................................. 16
4.3 LED Signals................................................................................................................. 18
4.4 Interfaces and Functions ............................................................................................ 19
4.5 Device Configuration ................................................................................................. 21
4.6 System Overview ....................................................................................................... 22
4.6.1 Sunny Tripower X as system manager................................................... 22
4.6.2 Sunny Tripower X with Sunny Home Manager 2.0 ............................. 22
4.6.3 Sunny Tripower X with SMA Data Manager........................................ 23
5 Mounting .................................................................................. 24
5.1 Requirements for Mounting ....................................................................................... 24
5.2 Mounting the product ................................................................................................ 26
6 Electrical Connection................................................................ 29
6.1 Overview of the Connection Area ............................................................................ 29
6.1.1 View from Below..................................................................................... 29
6.1.2 Interior View............................................................................................ 30
6.2 AC Connection........................................................................................................... 30
6.2.1 Requirements for the AC Connection .................................................... 30
6.2.2 Connecting the Inverter to the Utility Grid............................................. 32
6.2.3 Connecting Additional Grounding ........................................................ 34
6.3 Connecting the Ripple Control Receiver................................................................... 35
6.4 Connecting the Network Cables............................................................................... 38

Table of Contents SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-104
6.5 Connection to the Multifunction Relay...................................................................... 39
6.6 Connecting Signal Source to Digital Input DI 5-6.................................................... 41
6.7 DC Connection........................................................................................................... 43
6.7.1 Requirements for the DC Connection .................................................... 43
6.7.2 Assembling the DC Connectors ............................................................. 44
6.7.3 Connecting the PV Array........................................................................ 46
6.7.4 Disassembling the DC Connectors ........................................................ 49
7 Commissioning ......................................................................... 51
7.1 Commissioning Procedure ......................................................................................... 51
7.2 Commissioning the Product........................................................................................ 51
7.3 Changing the Network Configuration ...................................................................... 52
7.4 Configuring the Product............................................................................................. 52
8 Operation ................................................................................. 54
8.1 Establishing a connection to the user interface ........................................................ 54
8.1.1 Establishing a direct connection via WLAN.......................................... 54
8.1.2 Establishing a Connection via Ethernet in the local network................ 55
8.1.3 Establishing a Connection via WLAN in the Local Network ............... 56
8.2 Activate WPS Function............................................................................................... 56
8.3 Speedwire Encryption of the System Communication ............................................. 57
8.4 Activating or Deactivating SMA ArcFix.................................................................... 58
8.5 Creating a Backup File .............................................................................................. 58
8.6 Deleting the Admin Account...................................................................................... 59
9 Disconnecting the Inverter from Voltage Sources................. 60
10 Clean the product..................................................................... 63
11 Troubleshooting ....................................................................... 64
11.1 Event Messages ......................................................................................................... 64
11.2 Checking the PV System for Ground Faults.............................................................. 84
11.3 Resetting the Operation Inhibition after Detection of an Arc Fault ......................... 88
12 Decommissioning the Inverter ................................................ 89
13 Technical Data.......................................................................... 90
14 Accessories ............................................................................... 96
15 Contact...................................................................................... 97
16 EU Declaration of Conformity................................................. 98

Table of Contents
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 5
17 UK Declaration of Conformity ................................................ 99

1 Information on this Document SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-106
1 Information on this Document
1.1 Validity
This document is valid for:
• STP 12-50 (Sunny Tripower X 12)
• STP 15-50 (Sunny Tripower X 15)
• STP 20-50 (Sunny Tripower X 20)
• STP 25-50 (Sunny Tripower X 25)
1.2 Target Group
This document is intended for qualified persons and end users. Only qualified persons are allowed
to perform the activities marked in this document with a warning symbol and the caption
"Qualifiedperson". Tasks that do not require any particular qualification are not marked and can
also be performed by end users. Qualified persons must have the following skills:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing, repairing and
using electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of all applicable laws, standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Content and Structure of this Document
This document describes the mounting, installation, commissioning, configuration, operation,
troubleshooting and decommissioning of the product as well as the operation of the product user
interface.
You will find the latest version of this document and further information on the product in PDF format
and as eManual at www.SMA-Solar.com. You can also call up the eManual via the user interface
of the product.
Illustrations in this document are reduced to the essential information and may deviate from the real
product.
1.4 Levels of warning messages
The following levels of warning messages may occur when handling the product.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

1 Information on this Document
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 7
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, can result in property damage.
1.5 Symbols in the Document
Icon Explanation
Information that is important for a specific topic or goal, but is not safety-rele-
vant
☐
Indicates a requirement for meeting a specific goal
☑
Desired result
Example
Sections describing activities to be performed by qualified persons only
1.6 Typographical Elements in the Document
Typographical ele-
ment
Use Example
bold • Messages
• Terminals
• Elements on a user interface
• Elements to be selected
• Elements to be entered
• Connect the insulated
conductors to the terminals
X703:1 to X703:6.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected
• Go to Settings > Date.
[Button]
[Key]
• Button or key to be clicked on or
pressed down
• Select [Enter].
# • Placeholder for variable
components (e.g., parameter
names)
• Parameter WCtlHz.Hz#
1.7 Designations in the Document
Complete designation Designation in this document
SunnyTripower Inverter, product

2 Safety SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-108
2 Safety
2.1 Intended Use
The SunnyTripower is a transformerless PV inverter, with 3 MPPtrackers, that converts the direct
current of the PV array to grid-compliant, three-phase current and feeds it into the utility grid.
The product is intended for use in residential and industrial environments.
The product complies with EN55011 of class B, group 1.
The product is suitable for indoor and outdoor use.
The product must only be operated with PV modules of protection class II in accordance with
IEC61730, application class A. The PV modules must be compatible with this product.
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 (for information about the
requirements of the medium-voltage transformer, consult the technical information "Important
Requirements for Medium-Voltage Transformers" under www.SMA-Solar.com).
The product is not equipped with an integrated transformer and therefore has no galvanic isolation.
The product must not be operated with PV modules whose outputs are grounded. This can cause
the product to be destroyed. The product may be operated with PV modules whose frame is
grounded.
PV modules with a high capacity to ground must only be used if the coupling capacity of all PV
modules does not exceed 6μF (for information on how to determine the coupling capacity, see the
Technical Information "Leading Leakage Currents" at www.SMA-Solar.com).
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The product must only be used in countries for which it is approved or released by SMA Solar
Technology AG and the grid operator.
Use SMA products only in accordance with the information provided in the enclosed
documentation and with the locally applicable laws, regulations, standards and directives. Any
other application may cause personal injury or property damage.
Alterations to SMA products, e.g., changes or modifications, are only permitted with the express
written permission of and according to the instructions from SMA Solar Technology AG.
Unauthorized alterations can be dangerous and lead to personal injury. In addition, an
unauthorized alteration 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 Safety
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 9
The type label must remain permanently attached to 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, there are residual risks despite careful construction. To
prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
DANGER
Danger to life due to electric shock when live components or DC cables are
touched
When exposed to light, the PV modules generate high DC voltage which is present in the DC
cables. Touching live DC cables results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Disconnect the product from voltage sources and ensure it cannot be reconnected before
working on the device.
• Do not disconnect the DC connectors under load.
• Wear suitable personal protective equipment for all work on the product.
DANGER
Danger to life due to electric shock from touching an ungrounded PV module
or array frame
Touching ungrounded PV modules or array frames results in death or lethal injuries due to electric
shock.
• Connect and ground the frame of the PV modules, the array frame and the electrically
conductive surfaces so that there is continuous conduction. Observe the applicable local
regulations.
DANGER
Danger to life due to electric shock when touching live system components in
case of a ground fault
If a ground fault occurs, parts of the system may still be live. Touching live parts and cables
results in death or lethal injuries due to electric shock.
• Disconnect the product from voltage sources and ensure it cannot be reconnected before
working on the device.
• Only touch the cables of the PV modules on their insulation.
• Do not touch any parts of the substructure or frame of the PV array.
• Do not connect PV strings with ground faults to the inverter.

2 Safety SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-1010
DANGER
Danger to life due to electric shock in case of overvoltages and if surge
protection is missing
Overvoltages (e.g. in the event of a flash of lightning) can be further conducted into the building
and to other connected devices in the same network via the network cables or other data cables
if there is no surge protection. Touching live parts and cables results in death or lethal injuries due
to electric shock.
• Ensure that all devices in the same network are integrated in the existing overvoltage
protection.
• When laying the network cable outdoors, ensure that there is suitable surge protection at
the network cable transition from the product outdoors to the network inside the building.
• The Ethernet interface of the product is classified as "TNV-1" and offers protection against
overvoltages of up to 1.5kV.
WARNING
Danger to life due to fire and explosion
In rare cases, an explosive gas mixture can be generated inside the product under fault
conditions. In this state, switching operations can cause a fire inside the product or explosion.
Death or lethal injuries due to hot or flying debris can result.
• In the event of a fault, do not perform any direct actions on the product.
• Ensure that unauthorized persons have no access to the product.
• Do not operate the DC load-break switch on the inverter in case of an error.
• Disconnect the PV array from the inverter via an external disconnection device. If there is no
disconnecting device present, wait until no more DC power is applied to the inverter.
• Disconnect the AC circuit breaker, or keep it disconnected in case it has already tripped,
and secure it against reconnection.
• Only perform work on the product (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).
WARNING
Risk of injury due to toxic substances, gases and dusts.
In rare cases, damages to electronic components can result in the formation of toxic substances,
gases or dusts inside the product. Touching toxic substances and inhaling toxic gases and dusts
can cause skin irritation, burns or poisoning, trouble breathing and nausea.
• Only perform work on the product (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).
• Ensure that unauthorized persons have no access to the product.

2 Safety
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 11
WARNING
Danger to life due to electric shock from destruction of the measuring device
due to overvoltage
Overvoltage can damage a measuring device and result in voltage being present in the
enclosure of the measuring device. Touching the live enclosure of the measuring device results in
death or lethal injuries due to electric shock.
• Only use measuring devices with a DC input voltage range of 1000V or higher.
CAUTION
Risk of burns due to hot enclosure parts
The enclosure and the enclosure lid may get hot during operation. The DC load-break switch can
not become hot.
• Do not touch hot surfaces.
• Wait until the inverter has cooled down before touching the enclosure or enclosure lid.
CAUTION
Risk of injury due to weight of product
Injuries may result if the product is lifted incorrectly or dropped while being transported or
mounted.
• Transport and lift the product carefully. Take the weight of the product into account.
• Use the carrying handles or hoist when transporting the product. To attach the hoist system,
eye bolts must be screwed into the threads provided, which are located on the right and left
of the product's mounting lugs.
• Wear suitable personal protective equipment for all work on the product.
NOTICE
Damage to the enclosure seal in subfreezing conditions
If you open the product 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 -5°C.
• 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).
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.

2 Safety SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-1012
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
Manipulation of system data in networks
You can connect the supported SMA products to the Internet. When connected to the Internet,
there is a risk that unauthorized users can access and manipulate the data of your system.
• Set up a firewall.
• Close unnecessary network ports.
• If absolutely necessary, only enable remote access via a virtual private network (VPN).
• Do not use the port forwarding feature. This also applies to the used Modbus ports.
• Disconnect system components from other network components (network segmentation).
NOTICE
High costs due to inappropriate Internet tariff
Depending on use, the data volume of the product transferred via the Internet may vary in size.
The data volume depends, for example, on the number of devices in the system, the frequency of
device updates, the frequency of data transfer to SunnyPortal or the use of FTP push. High costs
for the Internet connection can be the result.
• SMA Solar Technology AG recommends using an Internet flat rate.
NOTICE
Damage to the product due to cleaning agents
The use of cleaning agents may cause damage to the product and its components.
• Clean the product and all its components only with a cloth moistened with clear water.
DHCP Server is recommended.
The DCHP server automatically assigns the appropriate network settings to your nodes in the
local network. A manual network configuration is therefore not necessary. In a local network,
the Internet router is usually the DHCP server. If the IP addresses in the local network are to be
assigned dynamically, DHCP must be activated in the Internet router (see the Internet router
manual). In order to receive the same IP address by the internet router after a restart, set the
MAC address binding.
In networks where no DHCP server is active, proper IP addresses must be assigned from the
free address pool of the network segment to all network participants to be integrated during
commissioning.

2 Safety
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 13
A country data set must be set for feed-in operation
To ensure the inverter begins feed-in operation during initial commissioning, a country data set
must be set (for instance via the installation assistant on the user interface of the product, or via
a communication product).
If no country data set is set, then feed-in operation will be stopped. This state is signaled by the
green and red LEDs flashing simultaneously.
The inverter will automatically start feed-in operation only after the inverter configuration is
completed.
The country data set must be set correctly.
If you select a country data set which is not valid for your country and purpose, it can cause a
disturbance in the PV system and lead to problems with the grid operator. When selecting the
country data set, you must always observe the locally applicable standards and directives as
well as the properties of the PV system (e.g. PV system size, grid-connection point).
• If you are not sure which standards and directives are valid for your country or purpose,
contact the grid operator.

3 Scope of Delivery SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-1014
3 Scope of Delivery
B
FIJ
A
L
K
C
G H
M
+
_
M32x1.5
M5x14
PN
D E
O
Figure 1: Components included in scope of delivery
Position Quantity Designation
A 1 Inverter
B 1 Wall mounting bracket
C 3 Bolt M5 x 14
D 1 Washer
E 1 Conical spring washer
F 6 Positive DC connector
G 6 Negative DC connector
H 12 Sealing plug for DC connectors
I 1 Operating manual for DC connectors
J 1 Cable gland M32x1.5 with counter nut
K 1 Jumper
L 1 3-pole terminal block
M 1 4-pole terminal block
N 1 5-pole terminal block

3 Scope of Delivery
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 15
Position Quantity Designation
O 2 Ferrite for network port
P 1 Quick reference guide with password label on the rear side
The label contains the following information:
• PIC (Product Identification Code) identification key for
registering the system in SunnyPortal
• RID (Registration Identifier) registration ID for registering the
system in SunnyPortal
• Wi-Fi password WPA2-PSK (WiFi Protected Access 2 -
Preshared Key) for direct connection to the product via Wi-Fi
• Device Key (DEV KEY) for resetting the administrator password

4 Product Overview SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-1016
4 Product Overview
4.1 Product Description
B
C
A
D
Figure 2: Design of the product
Position Designation
A DC load-break switch
B LEDs
The LEDs indicate the operating state of the product.
C A label with a QR code to be scanned using the SMA apps
D Type label
The type label clearly identifies the product. The type label must remain per-
manently attached to the product. You will find the following information on
the type lable:
• Device type (Model)
• Serial number (Serial No. or S/N)
• Date of manufacture
• Device-specific characteristics
4.2 Symbols on the Product
Icon Explanation
Beware of a danger zone
This symbol indicates that the product must be additionally grounded if addi-
tional grounding or equipotential bonding is required at the installation site.

4 Product Overview
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 17
Icon Explanation
Beware of electrical voltage
The product operates at high voltages.
Beware of hot surface
The product can get hot during operation.
Observe the documentations
Observe all documentations supplied with the product.
Inverter
Together with the green LED, this symbol indicates the operating state of the in-
verter.
Observe the documentations
Together with the red LED, this symbol indicates an error.
Data transmission
Together with the blue LED, this symbol indicates the status of the network con-
nection.
Grounding
This symbol indicates the position for the connection of an additional ground-
ing conductor.
Three-phase alternating current with neutral conductor
Direct current
The product has no galvanic isolation.
WEEE designation
Do not dispose of the product together with the household waste but in accor-
dance with the disposal regulations for electronic waste applicable at the in-
stallation site.
The product is suitable for outdoor installation.

4 Product Overview SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-1018
Icon Explanation
Degree of protectionIP65
The product is protected against the penetration of dust and water that is di-
rected as a jet against the enclosure from all directions.
CE marking
The product complies with the requirements of the applicable EU directives.
UKCA marking
The product complies with the regulations of the applicable laws of England,
Wales and Scotland.
RoHS
RoHS labeling
The product complies with the requirements of the applicable EU directives.
4.3 LED Signals
The LEDs indicate the operating state of the product.
LED signal Explanation
Green LED and red LED
flash simultaneously (2 s on
and 2 s off)
No country data set set
Operation of the product is stopped because no country data set is
set. Once the configuration has been completed (for instance using
the installation assistant or via a communication product), the prod-
uct will start operation automatically.
The green LED is flashing
(twoseconds on and
twoseconds off)
Waiting for feed-in conditions
The conditions for feed-in operation are not yet met. As soon as the
conditions are met, the inverter will start feed-in operation.
The green LED is glowing Feed-in operation
The inverter is feeding in.
The green LED is off No voltage is applied to the PV system.
The red LED is glowing Error
Inverter operation has been stopped. In addition, a distinct event
message and the corresponding event number will be displayed on
the product user interface or in the communication product (e.g.
SMADataManager).
Red LED is flashing (0.25s
on, 0.25s off, 0.25s on,
1.25s off)
Warning
Communication with a higher-level plant controller has failed. The in-
verter continues to operate with restricted function (e.g. with set fall-
back level).
In addition, a distinct event message and the corresponding event
number will be displayed on the product user interface or in the
communication product (e.g. SMADataManager).

4 Product Overview
SMA Solar Technology AG
Operating manual STPxx-50-BE-en-10 19
LED signal Explanation
Blue LED is flashing (2s on
and 2s off)
Communication connection is being established
The product is establishing a connection to a local network or is es-
tablishing a direct connection to a smart device via Ethernet (e.g.
smartphone, tablet or laptop).
The blue LED is flashing fast
(0.25s on and 0.25s off)
A communication product requests identification of the inverter.
The blue LED is glowing There is an active connection with a local network (LAN/Wi-Fi) or
there is a direct connection (Ethernet/WPS function) with a smart
end device (e.g. smartphone, tablet or laptop).
Blue LED is off There is no active connection.
All 3 LEDs are on Inverter update or booting procedure
4.4 Interfaces and Functions
The inverter can be equipped or retrofitted with the following interfaces and functions:
Sunny Tripower X as System Manager
The Sunny Tripower X can be used as System Manager in systems with a total of five SMA inverters
and a maximum system size of 135kVA. When used as System Manager, the Sunny Tripower X in
conjunction with an energy meter takes over the control at the point of interconnection and can
control up to four lower-level inverters. The System Manager also takes over system monitoring and
communication to the Sunny Portal powered by ennexOS.
User interface for configuration and monitoring
The product is equipped as standard with an integrated webserver, which provides a user interface
for configuring and monitoring the product.
Once a connection has been established to a smart end device (e.g. laptop or tablet PC), the
product's user interface can be called up using a web browser.
If the product is used as System Manager, up to four lower-level SMA inverters and one SMA
energy meter can be configured and commissioned via the user interface of the product.
SMASpeedwire
The product is equipped with SMASpeedwire as standard. SMASpeedwire is a type of
communication based on the Ethernet standard. SMASpeedwire is designed for a data transfer
rate of 100Mbps and enables optimum communication between Speedwire devices within
systems.
The products supports the encrypted system communication with SMA Speedwire Encrypted
Communication. In order to be able to use the Speedwire encryption in the system, all Speedwire
devices, except for the SMAEnergyMeter, must support the function SMA Speedwire Encrypted
Communication.

4 Product Overview SMA Solar Technology AG
Operating manualSTPxx-50-BE-en-1020
Wi-Fi
The product is equipped with a Wi-Fi 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 a
smart end device.
Device Key (DEV KEY)
The device key allows you to reset the administrator account and assign a new password if you
forget the administrator password for the product. The device key can be used to prove the identity
of the product in digital communication. The Device Key is located on the back of the quick
reference guide that comes with the product. Keep the device key safe in case you forget the
administrator password.
Digital inputs
The product is equipped with digital inputs as standard.
Digital input DI 1-4 is intended for connection of a ripple control receiver or remote terminal unit for
control by the grid operator.
Digital input DI 5 is intended for connection of a fast-stop switch (break contact).
Digital input DI 6 is intended for connection of an external grid and PV system protection device
(break contact).
Grid management services
The product is equipped with service functions for grid management.
Depending on the requirements of the grid operator, you can activate and configure the functions
(e.g. active power limitation) via operating parameters.
The setpoints from the grid operator can either be implemented via open-loop control or closed-
loop control. The setpoints are specified via Modbus, analog or digital signals or manually via the
user interface. The implementation of the setpoints is reported back to the grid operator.
Surge arrester type1 and 2 or type2
The inverter includes a slot for DC overvoltage protection. The DC overvoltage protection with
surge protection devices of the type1 and 2 or type2 is available as an accessory. The surge
protection devices limit dangerous overvoltages.
SMA ArcFix
SMA ArcFix is an Arc Fault Circuit Interrupter (AFCI). With this function, the inverter effectively
detects arcs on the DC side and interrupts them.
A detected electric arc causes the inverter to interrupt feed-in operation. To restart feed-in operation,
the operational disruption which has occurred must be reset. Alternatively, the arc-fault circuit
interrupter can be activated without inhibiting operation. Depending on the country data set, arc
fault detection is activated or deactivated by default. If the installation conditions permit this, you
can change the default setting.