SMA STP 12-50 Sunny Tripower X 12-50 STP 12-50 Solar Inverter User Guide

12-50 Sunny Tripower
X 12-50 STP 12-50 Solar Inverter
User Guide
STPxx-50-IS-xx-10  Version 1.0

https://manuals.sma.de/STPxx50/index.html

STP 12-50 Sunny Tripower X 12-50 STP 12-50 Solar Inverter

SMA Solar Technology AG

Legal Provisions
The information contained in these documents is the property of SMA Solar Technology AG. No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, be it electronic, mechanical, photographic, magnetic or otherwise, without the prior written permission of SMA Solar Technology AG. Internal reproduction used solely for the purpose of product evaluation or other proper use is allowed and does not require prior approval.
SMA Solar Technology AG makes no representations or warranties, express or implied, with respect to this documentation or any of the equipment and/or software it may describe, including (with no limitation) any implied warranties of utility, merchantability, or fitness for any particular purpose. All such representations or warranties are expressly disclaimed. Neither SMA Solar Technology AG nor its distributors or dealers shall be liable for any indirect, incidental, or consequential damages under any circumstances.
The exclusion of implied warranties may not apply in all cases under some statutes, and thus the above exclusion may not apply.
Specifications are subject to change without notice. Every attempt has been made to make this document complete, accurate and up-to-date. Readers are cautioned, however, that product improvements and field usage experience may cause SMA Solar Technology AG to make changes to these specifications without advance notice or per contract provisions. 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 +49 561 9522-0
Fax +49 561 9522 100
www.SMA.de
E-mail: info@SMA.de
Status: 7/15/2022
Copyright © 2022 SMA Solar Technology AG. All rights reserved.

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

The tasks described in this document must only be performed by qualified persons. Qualified persons must have the following skills:

• Knowledge of how to safely disconnect SMA inverters
• 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 contains safety information as well as graphical instructions on installing and commissioning (see page 242). Observe all information and carry out the actions illustrated graphically in this document in the specified order.
The latest version of this document and the comprehensive manual for installation, commissioning,
configuration and decommissioning are to be found in PDF format and as eManual at www.SMASolar.com. You will find the QR code that links to the eManual on the title page of this document.
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.
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

safety-relevant
| Section in which the installation and commissioning process is illustrated graphically.

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.
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 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.

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.

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.
• 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.

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.
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.

Symbols on the Product

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 inverter.
| 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 connection.
| Grounding
This symbol indicates the position for the connection of an additional grounding
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 accordance with the disposal regulations for electronic waste applicable at the installation site.
| The product is suitable for outdoor installation.
IP65| Degree of protection IP65
The product is protected against the penetration of dust and water that is directed 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 labeling
The product complies with the requirements of the applicable EU directives.

EU Declaration of Conformity

within the scope of the EU directives

• Radio Equipment Directive 2014/53/EU (22.5.2014 L 153/62) (RED)
• Restriction of the use of certain hazardous substances 2011/65/EU
  (L 174/88, June 8, 2011) and 2015/863/EU (L 137/10, March 31, 2015) (RoHS)
  SMA Solar Technology AG confirms herewith that the products described in this document are in compliance with the fundamental requirements and other relevant provisions of the abovementioned directives. The entire EU Declaration of Conformity can be found at www.SMASolar.com.

UK Declaration of Conformity

according to the regulations of England, Wales and Scotland

• Electromagnetic Compatibility Regulations 2016 (SI 2016/1091)
• Electrical Equipment (Safety) Regulations 2016 (SI 2016/1101)
• Radio Equipment Regulations 2017 (SI 2017/1206)
• The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 (SI 2012/3032)

SMA Solar Technology AG confirms herewith that the products described in this document are in
compliance with the fundamental requirements and other relevant provisions of the abovementioned regulations. The entire UK Declaration of Conformity can be found at
www.SMASolar.com.
SMA Solar UK Ltd.
Countrywide House
23 West Bar, Banbury
Oxfordshire, OX16 9SA
United Kingdom

Instructions

Scope of Delivery Mounting location

Mounting AC Connection

Connecting the Ripple Control Receiver

**Connecting Signal Source to Digital Input DI 5-6![SMA STP 12 50 Sunny Tripower X 12 50 STP 12 50 Solar Inverter

• Figure 12](https://manuals.plus/wp-content/uploads/2022/12/SMA-STP-12-50 -Sunny-Tripower-X-12-50-STP-12-50-Solar-Inverter-Figure-12.jpg) Connecting the network**

DC Connection

Max. generator
power| 18000 Wp STC| 22500 Wp STC| 30000 Wp STC| 37500 Wp STC
VDC, max| 1000 V
VDC, MPP| 206 V to 800 V| 257 V to 800 V| 340 V to 800 V| 430 V to 800 V
IDC, max| 24 A
ISC PV| 35 A

Commissioning

Accessing the user interface via WLAN

http://smalogin.net

Accessing the user interface via LAN

Configuration Disconnect from voltage sources

Disassembling the DC Connectors

System data

attached to the AC distribution board, which indicates the AC-side disconnection of the inverter in case of a grid failure (for further details, see NRS 97-2-1, Sect. 4.2.7.1 and 4.2.7.2)
AS 4777.2: If DRM support is specified, the inverter may only be used in conjunction with a Demand Response Enabling Device (DRED). The inverter and the Demand Response Enabling Device (DRED) must be connected in the same network and the inverter Modbus interface must be activated and the TCP server set.

Contact

https://go.sma.de/service

Access data for the registration in Sunny Portal and WLAN password
Serial number………..
Installer password…………..
User password………………
Device key to reset the administrator account. Store the device key safely……..

http://www.sma- solar.com/

References

• Solar.com | Get Binding Solar Quotes Online
• SMA Solar Technology AG - Inverter & Photovoltaics Solutions | SMA Solar
• SMA Solar Technology AG - Inverter & Photovoltaics Solutions | SMA Solar
• Willkommen bei SMA! | SMA Solar
• SMA service & support. Profitable. Reliable. Affordable. | SMA Solar

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