SMA SUNNY TRIPOWER CORE1-US User manual

SUNNY TRIPOWER
STP50-US-40-BA-en-10 | Version 1.0ENGLISH
User Manual
SUNNYTRIPOWER CORE1-US

Legal Provisions SMA Solar Technology America LLC
User ManualSTP50-US-40-BA-en-102
Legal Provisions
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 America LLC.
SMA Solar Technology America LLC 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 America LLC 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 America LLC to make
changes to these specifications without advance notice, or per contract provisions in those cases
where a supply agreement requires advance notice. SMA 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.
Software licenses
The licenses for the used software modules can be called up on the user interface of the product.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
SMASolar TechnologyAmerica LLC
6020 West Oaks Blvd.
Suite 300 Rocklin, CA 95765 U.S.A.
Status: 1/12/2018
Copyright©2017SMA Solar Technology America LLC. All rights reserved.

Important Safety Instructions
SMA Solar Technology America LLC
User Manual STP50-US-40-BA-en-10 3
Important Safety Instructions
SAVE THESE INSTRUCTIONS
This manual contains important instructions for:
• STP50-US-40 (SunnyTripowerCORE1-US)
This manual must be followed when using this product.
The product is designed and tested in accordance with international safety requirements, but as
with all electrical and electronic equipment, certain precautions must be observed when installing
and/or operating the product. To reduce the risk of personal injury and to ensure the safe
installation and operation of the product, you must carefully read and follow all instructions,
cautions and warnings in this manual.
Warnings on this Product
The following symbols are used as product markings with the following meanings.
Beware of dangerous voltage
The product operates at high voltages. All work on the product must only be
performed as described in the documentation of the product.
Beware of hot surface
The product can get hot during operation. Do not touch the product during op-
eration.
Observe the operating instructions
Read the documentation of the product before working on it. Follow all safety
precautions and instructions as described in the documentation.

General Warnings SMA Solar Technology America LLC
User ManualSTP50-US-40-BA-en-104
General Warnings
WARNING
All electrical installations must be carried out in accordance with the applicable electrical
standards on site and the National Electrical Code® ANSI/NFPA 70. This document does not
replace and is not intended to replace any local, state, provincial, federal or national laws,
regulations or codes applicable to the installation and use of the product, including without
limitation applicable electrical safety codes. All installations must conform with the laws,
regulations, codes and standards applicable in the jurisdiction of installation. SMA assumes no
responsibility for the compliance or non-compliance with such laws or codes in connection with
the installation of the product.
The product contains no user-serviceable parts.
Before installing or using the product, read all of the instructions, cautions, and warnings in this
manual.
Before connecting the product to the electrical utility grid, contact the local utility company. This
connection must be made only by qualified personnel.
Wiring of the product must be made by qualified personnel only.

Table of Contents
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Table of Contents
1 Information on this Document................................................. 7
1.1 Validity........................................................................................................................ 7
1.2 Target Group.............................................................................................................. 7
1.3 Types of warning message........................................................................................ 7
1.4 Symbols ...................................................................................................................... 7
1.5 Typographies.............................................................................................................. 8
1.6 Nomenclature............................................................................................................. 8
1.7 Additional Information ............................................................................................... 8
2 Safety ........................................................................................ 10
2.1 Intended Use .............................................................................................................. 10
2.2 Safety Information...................................................................................................... 11
3 Product Overview .................................................................... 13
3.1 Product Description .................................................................................................... 13
3.2 Interfaces and Functions ............................................................................................ 15
3.3 LED Signals................................................................................................................. 17
4 Using the Inverter User Interface............................................ 19
4.1 Establishing a connection to the user interface ........................................................ 19
4.1.1 Establishing a direct connection via WLAN.............................. 19
4.1.2 Establishing a Connection via WLAN in the Local Network.... 20
4.1.3 Establishing a Connection via Ethernet in the local network.... 21
4.2 Logging In and Out of the User Interface................................................................. 22
4.3 Start Page Design of the User Interface.................................................................... 24
4.4 Starting the Installation Assistant............................................................................... 27
4.5 Displaying and Downloading the Stored Data........................................................ 28
4.6 Changing the Password............................................................................................. 29
5 Configuration of the Inverter................................................... 30
5.1 Changing Operating Parameters.............................................................................. 30
5.2 Configuring the Country Data Set............................................................................. 31
5.3 Deactivating the Arc-Fault Circuit Interrupter (AFCI)................................................ 31
5.4 Changing the Operating Mode of the Multifunction Relay .................................... 31
5.5 Configuring the Modbus Function............................................................................. 32
5.6 Setting SMA OptiTrac Global Peak ......................................................................... 33
5.7 Activating String-Failure Detection ............................................................................ 33
5.8 Saving the Configuration in a File............................................................................. 34
5.9 Adopting a Configuration from a File....................................................................... 34

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5.10 Switching the Dynamic Power Display Off............................................................... 35
5.11 Activate WPS Function............................................................................................... 35
5.12 Switching WLAN On and Off................................................................................... 36
6 Cleaning the Inverter ............................................................... 37
7 Troubleshooting........................................................................ 38
7.1 Forgotten Password.................................................................................................... 38
7.2 Event Messages ......................................................................................................... 39
7.3 Checking the PV System for Ground Faults.............................................................. 53
7.4 Resetting the Operation Inhibition after Detection of an Arc Fault ......................... 56
7.5 Updating the Firmware.............................................................................................. 56
8 Accessories ............................................................................... 58
9 Compliance Information .......................................................... 59
10 Contact ...................................................................................... 60

1 Information on this Document
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User Manual STP50-US-40-BA-en-10 7
1 Information on this Document
1.1 Validity
This document is valid for:
• STP50-US-40 (SunnyTripowerCORE1-US)
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 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
• Training in how to deal with the dangers and risks associated with installing, repairing and
using electrical devices and installations
1.3 Types of warning message
DANGER
Safety information that, if not avoided, will result in death or serious injury.
WARNING
Safety information that, if not avoided, could result in death or serious injury.
CAUTION
Safety information that, if not avoided, can result in minor or moderate injury.
NOTICE
Safety information that, if not avoided, can result in property damage.
1.4 Symbols
Symbol Explanation
Information that is important for a specific topic or goal, but is not
safety-relevant
☐
Indicates a requirement for meeting a specific goal

1 Information on this Document SMA Solar Technology America LLC
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Symbol Explanation
☑
Desired result
✖
A problem that might occur
1.5 Typographies
Typography Use Example
bold • Terminals
• Slots
• Parameters
• Elements on the user interface
• Elements to be selected
• Elements to be entered
• The value can be found in
the field Energy.
• Select Settings.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected
• Select Settings > Date.
[Button]• Button to be selected or pressed • Select [Next].
1.6 Nomenclature
Complete designation Designation in this document
Sunny Tripower CORE1-US Inverter, product
SMA Solar Technology America LLC SMA
1.7 Additional Information
Links to additional information can be found at www.SMA-Solar.com:
Document title Document type
"Parameters and Measured Values"
Overview of All Inverter Operating Parameters and Their Configura-
tion Options
Technical Information
"Webconnect Systems in SunnyPortal"
Registration in SunnyPortal and setting or changing operating pa-
rameters of the inverter
User Manual
"SMAModbus® Interface"
Information on the commissioning and configuration of the SMA
Modbus interface
Technical Information

1 Information on this Document
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User Manual STP50-US-40-BA-en-10 9
Document title Document type
"SunSpec® Modbus® Interface"
Information on the commissioning and configuration of the SunSpec
Modbus interface
Technical Information
"Efficiency and Derating"
Efficiency and Derating Behavior of the SunnyBoy, SunnyTripower
and SunnyMiniCentral Inverters
Technical Information

2 Safety SMA Solar Technology America LLC
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2 Safety
2.1 Intended Use
The SunnyTripower is a transformerless PV inverter, with 6 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 suitable for indoor and outdoor use.
The product may only be operated with PV arrays (PV modules and cabling) that are approved in
accordance with the electrical standards applicable on-site and the NationalElectricalCode®
ANSI/NFPA 70.
No galvanic isolation
The product is not equipped with a transformer and therefore has no galvanic isolation.
• Do not operate grounded PV modules together with the product. If grounded PV modules
are connected to the product, an event will occur. The event will be displayed, along with
the associated message, in the event list on the user interface of the product.
• Only ground the mounting frames of the PV modules.
• The neutral conductor of the AC output is grounded within the product as standard.
When connecting a utility grid with neutral conductor, the bridge between the neutral
conductor of the AC output and the enclosure must be removed.
PV modules with a high capacity to ground may only be used if their coupling capacity does not
exceed 12.6μF.
To protect the PV system against excessive reverse currents under fault conditions, a DC-side
overcurrent protective device must be connected in accordance with the National Electrical Code®
to prevent any short-circuit currents that exceed the ampacity of the DC electric circuit or the
maximum series fuse rating of the PV modules. Typically, this requires string fusing where more than
two strings are combined in parallel. Where an overcurrent protection device is required, the
National Electrical Code® requires that both positive and negative conductors have overcurrent
protection for ungrounded PV modules.
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The product is approved for the USA market.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA. Unauthorized alterations will void guarantee and warranty claims and in most
cases terminate the operating license. SMA shall not be held liable for any damage caused by
such changes.
Any use of the product other than that described in the Intended Use section does not qualify as the
intended use.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.

2 Safety
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User Manual STP50-US-40-BA-en-10 11
The type label must remain permanently attached to the product.
2.2 Safety Information
This section contains safety information that must be observed at all times when working on or with
the product.
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 high voltages of the PV array
When exposed to light, the PV array generates dangerous DC voltage, which is present in the
DC conductors and the live components of the inverter. Touching the DC conductors or the live
components can lead to lethal electric shocks. If you disconnect the DC connectors from the
inverter under load, an electric arc may occur leading to electric shock and burns.
• Do not touch non-insulated cable ends.
• Do not touch the DC conductors.
• Do not touch any live components of the inverter.
• Have the inverter mounted, installed and commissioned only by qualified persons with the
appropriate skills.
• If an error occurs, have it rectified by qualified persons only.
• Prior to performing any work on the inverter, disconnect it from all voltage sources as
described in this document.
DANGER
Danger to life due to electric shock in case of a ground fault
If a ground fault occurs, parts of the system may still be live. Touching live components can lead
to lethal electric shocks.
• Ensure that no voltage is present and wait five minutes before touching any parts of the PV
system or the inverter.
DANGER
Danger to life due to electric shock
Touching an ungrounded PV module or array frame can cause a lethal 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.

2 Safety SMA Solar Technology America LLC
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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.
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 then.
• Only open the product if the ambient temperature is not below -5°C (23°F).
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing,
remove it prior to opening the product (e.g. by melting the ice with warm air). Observe the
applicable safety regulations.
NOTICE
Damage to the inverter due to moisture and dust intrusion
Dust or moisture intrusion can damage the inverter and impair its functionality.
• Close all enclosure openings of the inverter tightly.
• Never open the inverter when it is raining or snowing, or the humidity is over 95%.
NOTICE
Damage to the type label due to the use of cleaning agents
• If the inverter is dirty, clean the enclosure, the enclosure lid, the type label and the LEDs with
a damp cloth and clear water only.

3 Product Overview
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3 Product Overview
3.1 Product Description
A
F
D
N
M
L
G
B
C
E
N
H
J
K
OI
Figure 1: Design of the SunnyTripower
Position Designation
A Cover
B AC Connection Unit
C DC Connection Unit
D LEDs
The LEDs indicate the operating state of the inverter.
E Cable glands for data cables
F DC load-break switch
G DC connector
H Equipment grounding bar for the equipment grounding conductor of the
PV array
I Fan bracket with three fans
J Type label
The type label clearly identifies the product. The type label must remain
permanently attached to the product. You will find the following informa-
tion on the type label:
• Device type (Model)
• Serial number (Serial No. or S/N)
• Date of manufacture
• Device-specific characteristics

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Position Designation
K Additional label with details for registration in SunnyPortal and WLAN
password:
• Identification key (PIC) for registration in Sunny Portal
• Registration ID (RID) for registration in Sunny Portal
• WLAN password (WPA2-PSK) for the direct connection to the user
interface of the inverter via WLAN
L Enclosure opening for AC connection
M Enclosure opening for additional cable
N Enclosure opening for carrying handle
O AC load-break switch
Symbols on the Product and on the Type Label
Symbol Explanation
Inverter
Together with the green LED, this symbol indicates the operating state of
the inverter.
Observe the documentation
Together with the red LED, this symbol indicates an error.
Data transmission
Together with the blue LED, this symbol indicates the status of the network
connection.
Equipment Grounding Terminal
This symbol indicates the position for the connection of an equipment
grounding conductor.
Grounding
This symbol indicates the position for the connection of an additional
equipment grounding conductor.
Risk of burns due to hot surfaces
The product can get hot during operation. Avoid contact during opera-
tion. Prior to performing any work on the product, allow the product to
cool down sufficiently.
Danger to life due to electric shock
The product operates at high voltages. Prior to performing any work on
the product, disconnect the product from voltage sources. All work on the
product must be carried out by qualified persons only.

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Symbol Explanation
Observe the documentation
Observe all documentation supplied with the product.
110441-00.01
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CAN ICES-3 (B)/NMB-3(B)
WARNING
Contains FCC ID: SVF-KP20 Contains IC: 9440A-KP20
UL 1741 SA
Grid support utility interactive inverter complying with a subset of the IEEE 1547-
2003 and IEEE 1547.1-2005 requirements.
Product specific evaluation criteria and ratings are included in the product
documentation.
ELECTRIC SHOCK HAZARD
Do not remove cover. No user serviceable parts inside.
Refer servicing to qualified service personnel.
When the photovoltaic array is exposed to light, it supplies a DC voltage to this
equipment. Disconnect AC and DC individually and wait 5 minutes before servicing.
Hazardous voltage remains for 5 minutes after disconnecting main power supply.
Do not touch terminals. All terminals may be energized in the open position.
Hot surfaces – To reduce the risk of burns, do not touch.
This is a transformerless device. The DC conductors of this photovoltaic system are
normally ungrounded but will become intermittently grounded without indication
when the inverter measures the PV array isolation.
Warning label with compliance information
UL1741 is the standard applied by Underwriters Laboratories to the
product to certify that the product meets the requirements of the National
Electrical Code® and the IEEE1547 standard.
3.2 Interfaces and Functions
The inverter can be equipped or retrofitted with the following interfaces and functions:
User interface for monitoring and configuration
The product is equipped as standard with an integrated webserver, which provides a user interface
for configuring and monitoring the product. The product user interface can be called up via the web
browser if there is an existing connection to an end device (e.g. computer, tablet PC or
smartphone).
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.
SMA Webconnect
The inverter is equipped with a Webconnect function as standard. The Webconnect function
enables direct data transmission between the inverters of a small-scale plant and the Internet portals
SunnyPortal and SunnyPlaces without any additional communication device and for a maximum
of 4 inverters per visualized system. In large-scale PV power plants with more than 4 inverters, there
is the option of establishing data transmission between the inverters and the web-based monitoring
platform SunnyPortal and SunnyPlaces via the SMAClusterController or to distribute the inverters
over several plants. If there is an existing WLAN or Ethernet connection, you can directly access
your visualized system via the web browser on your end device.

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WLAN
The product is equipped with a WLAN interface as standard. The inverter is delivered with the
WLAN interface activated as standard. If you do not want to use WLAN, you can deactivate the
WLAN interface.
In addition, the product has a WPS function. The WPS function is for automatically connecting the
product to a network (e.g. via router) and establish a direct connection between the product and
an end device.
Expanding the radio range in the WLAN network
In order to expand the radio range of the inverter in the WLAN network, you can install the
Antenna Extension Kit accessory set in the inverter.
Modbus
The product is equipped with a Modbus interface. The Modbus interface is deactivated by default
and must be configured as needed.
The Modbus interface of the supported SMA products is designed for industrial use – via SCADA
systems, for example – and has the following tasks:
• Remote query of measured values
• Remote setting of operating parameters
• Setpoint specifications for system control
Module slots
The inverter is standard-equipped with two module slots. The module slots are located on the
communication assembly and allow additional modules to be connected (e.g. SMA Sensor
Module). The modules are available as accessories. The installation of two identical modules is not
permissible.
SMA RS485 Module
With the assembly of the RS485 Module, the inverter can communicate with special
SMAcommunication products (Information on assembly and connection see manual of the SMA
RS485 Module). The SMA RS485 Module can be retrofitted.
Antenna Extension Kit
Within the WLAN network, the Antenna Extension Kit enables the radio range of the inverter to be
upgraded (Information on assembly and connection see manual of the Antenna Extension Kit). The
Antenna Extension Kit can be retrofitted.
Grid Management Services
The inverter is a grid support interactive inverter.
The inverter was tested in accordance with the UL1741 SA (2016-09-07) to be compliant with the
source requirements documents of the states available at the time. For connecting the inverter to the
utility grid, no additional grid monitoring equipment is necessary. A description of the tested
functions and instructions on the activation and setting of functions can be found in the technical
information "Grid Support Utility Interactive Inverters" at www.SMA-Solar.com.

3 Product Overview
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PVRapidShutdownSystemEquipment
The inverter is a PVRapidShutdownSystemEquipment and performs the function of voltage
reduction according to UL 1741 CRD PV Rapid Shutdown Systems 2015. When a rapid shutdown
is triggered by disconnecting the utility grid, the inverter discharges independently on the AC side to
≤30 V within 30 seconds.
If a disconnection device is used in addition between the inverter and the PV array that disconnects
the PV array in the case of a rapid shutdown, the inverter discharges independently on the DC side
to ≤30V within 30 seconds.
Attention - The system status indicator shall be installed in a location in close proximity to the
system actuator, where the indication of safe shutdown can be clearly seen.
SMA Sensor Module
The SMA Sensor Module has different interfaces for connecting various sensors (i.e. temperature
sensor, irradiation sensor, anemometer or energy meter). The SMA Sensor Module converts the
signals of the connected sensors and transmits them to the inverter. The SMA Sensor Module can
be retrofitted.
Multifunction Relay
The inverter is equipped with a multifunction relay as standard. The multifunction relay is an
interface that can be configured for the operating mode used by a particular system.
String-Failure Detection
The string-failure detection measures the total current of every input and continuously calculates the
mean values for the inputs in question. The total currents are compared with the mean values. If a
total current exceeds or falls short of the mean value by the set tolerance value, an event is
reported. Marginally increased total currents are reliably detected over several query intervals and
distinguished from typical current fluctuations of the PV array. String-failure detection is deactivated
by default and must be activated. In addition, the tolerance value can be set via the user interface
and the mean values read off.
Arc-Fault Circuit Interrupter (AFCI)
In accordance with the National Electrical Code®, the inverter has a system for arc fault detection
and interruption.
An electric arc with a power of 300W or greater must be interrupted by the AFCI in the time
specified by UL 1699B. A detected electric arc causes the inverter to interrupt feed-in operation. In
order to restart feed-in operation, the feed-in operation must be activated manually. If the
installation conditions allow it, you can deactivate the arc-fault circuit interrupter.
3.3 LED Signals
The LEDs indicate the operating state of the inverter.
LED signal Explanation
The green LED is flashing
(twoseconds on and
twoseconds off)
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.

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LED signal Explanation
The green LED flashes
quickly
Update of central processing unit
The central processing unit of the inverter is being updated.
The green LED is glowing Feed-in operation
The inverter feeds in with a power of at least 90%.
The green LED is pulsing Feed-in operation
The inverter is equipped with a dynamic power display via the green
LED. Depending on the power, the green LED pulses fast or slow. If
necessary, you can switch off the dynamic power display via the
green LED.
The green LED is off The inverter is not feeding into the utility grid.
The red LED is glowing Event occurred
If an event occurs, a distinct event message and the corresponding
event number will be displayed in addition on the inverter user inter-
face or in the communication product.
The blue LED flashes slowly
for approx. one minute
Communication connection is being established
The inverter is establishing a connection to a local network or is es-
tablishing a direct connection to an end device via Ethernet (e.g.
computer, tablet PC or smartphone).
The blue LED flashes quickly
for approx. two minutes.
WPS active
The WPS function is active.
The blue LED is glowing Communication active
There is an active connection with a local network or there is a di-
rect connection with an end device via Ethernet (e.g. computer,
tablet PC or smartphone).

4 Using the Inverter User Interface
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4 Using the Inverter User Interface
4.1 Establishing a connection to the user interface
4.1.1 Establishing a direct connection via WLAN
Requirements:
☐ The product must be commissioned.
☐ An end device (e.g. computer, tablet PC or smartphone) must be available.
☐ The respective latest version of one of the following web browsers must be installed: Chrome,
Edge, Firefox, Internet Explorer or Safari.
☐ JavaScript must be enabled in the web browser of the end device.
☐ The SMA Grid Guard code of the Installer must be available for the changing of grid-relevant
settings after completion of the first ten feed-in hours or installation assistant (see "Application
for SMAGridGuard Code" at www.SMA-Solar.com). A charge is levied for this code.
Inverter SSID and IP address and necessary passwords
• Inverter SSID in WLAN: SMA[serial number] (e.g. SMA0123456789)
• Standard WLAN password (usable until completion of the configuration by means of the
installation assistant or prior to the end of the first tenfeed-in hours): SMA12345
• Device-specific WLAN password (usable for initial configuration to completion of the first
tenfeed-in hours): see WPA2-PSK on the type label of the inverter or on the back of the
manual included in the delivery
• Standard IP inverter address for a direct connection via WLAN outside of a local
network: 192.168.12.3
Importing and exporting files with end devices having an iOS operating
system is not possible.
For technical reasons, importing and exporting files (e.g. importing an inverter configuration,
saving the current inverter configuration or exporting events) is not possible with mobile end
devices having an iOS operating system.
• Use an end device that does not have an iOS operating system for importing and
exporting files.
The procedure can be different depending on the end devices. If the procedure described does not
apply to your end device, establish the direct connection via WLAN as described in the manual of
your end device.
Procedure:
1. If your end device has a WPS function:
• Activate the WPS function on the inverter. To do this, tap twice in succession on the
enclosure lid of the DC connection unit next to the LEDs.
☑ The blue LED flashes quickly for approx. two minutes. The WPS function is active.

4 Using the Inverter User Interface SMA Solar Technology America LLC
User ManualSTP50-US-40-BA-en-1020
• Activate the WPS on your end device.
☑ The connection with your end device will be established automatically. It can take
up to 20seconds for this connection to be established.
2. If your end device has not a WPS function:
• Search for WLAN networks with your end device.
• Select the SSID of the inverter SMA[serial number] in the list with the found WLAN
networks.
• Enter the inverter WLAN password. Within the first tenfeed-in hours and prior to
completing the configuration by means of the installation assistant, you must use the
standard WLAN password SMA12345. After the first tenfeed-in hours or after
completing the configuration by means of the installation assistant, you must use the
device-specific WLAN password (WPA2-PSK) of the inverter. You find the WLAN
password (WPA2-PSK) on the type label.
3. Enter the IP address 192.168.12.3 or, if your device supports mDNS services, SMA[serial
number].local or https://SMA[serial number] in the address line of the web browser and
press the enter key.
4. Web browser signals a security vulnerability
After the IP address has been confirmed by pressing the enter key, a message might
appear indicating that the connection to the user interface of the inverter is not secure.
SMA guarantees that calling up the user interface is secure.
• Continue loading the user interface.
☑ The login page of the user interface opens.
4.1.2 Establishing a Connection via WLAN in the Local Network
New IP address for connecting with a local network
If the product is connected to a local network (e.g. via a router), the product will receive a new
IP address. Depending on the type of configuration, the new IP address will be assigned
automatically by the DHCP server (router) or manually by you. Upon completion of the
configuration, the product can only be reached via the following access addresses:
• Generally applicable access address: IP address manually assigned or assigned by the
DHCP server (router) (identification via network scanner software or network
configuration of the router).
• Access address for Apple and Linux systems: SMA[serial number].local (e.g.
SMA0123456789.local)
• Access address for Windows and Android systems: https://SMA[serial number] (e.g.
https://SMA0123456789)
Requirements:
☐ The product must be commissioned.
☐ The product must be integrated into the local network. Tip: There are various methods of
integrating the product into the local network with the aid of the installation assistant.
☐ The end device must be in the same local network as the product.