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EN
PV Inverter
SUNNY BOY 2500TLSingleTracker
SUNNYBOY3000TLSingleTracker
Installation Manual
SB25-30TLST-21-IA-en-13 | Version 1.3
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SMA Solar Technology AG Table of Contents
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Symbols Used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Qualification of Skilled Persons . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Sunny Boy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Symbols on the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3 Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5 Electronic Solar Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6 Bluetooth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.7 Slot for Communication Interface . . . . . . . . . . . . . . . . . . . . . . . 20
4.8 Slot for Multi-Function Interface . . . . . . . . . . . . . . . . . . . . . . . . 21
4.9 Operating Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.10 Grid Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.11 Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 23
5.3 Mounting the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
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Table of Contents SMA Solar Technology AG
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 28
6.3 Connection to the Electricity Mains (AC) . . . . . . . . . . . . . . . . . 29
6.3.1 Conditions for the AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.2 Connecting the Inverter to the Electricity Mains (AC) . . . . . . . . . . . . . . . . . . 32
6.3.3 Additional Earthing of the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.4 Connecting the PV Array (DC) . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.4.1 Conditions for DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.4.2 Assembling the DC Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4.3 Disassembling the DC Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.4.4 Connecting the PV Array (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.5 Setting the Country Standard and Display Language . . . . . . . 43
6.5.1 Checking the Country Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.5.2 Setting the Country Standard and Language using the
Rotary Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.6 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.6.1 Interface for RS485 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.6.2 Setting the Bluetooth NetID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.6.3 Multi-Function Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.1 Commissioning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.2 Display Messages during the Start-Up Phase . . . . . . . . . . . . . . 53
7.3 Self-Test in Accordance with CEI 0-21 for Plants ≤ 6 kW. . . . 54
7.3.1 Starting the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.3.2 Abortion of the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7.3.3 Restarting the Self-Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7.4 Deactivating Protective Conductor Monitoring. . . . . . . . . . . . . 55
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SMA Solar Technology AG Table of Contents
8 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
8.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
8.2 Disconnecting the Inverter from Voltage Sources . . . . . . . . . . . 57
8.3 Closing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
9 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 62
9.1 Cleaning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.2 Checking Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.3 Checking the Electronic Solar Switch for Wear . . . . . . . . . . . . 62
10 Slot for SD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
11.1 LED Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
11.2 Event Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
11.3 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
11.4 DC Current after AC-Side Disconnection . . . . . . . . . . . . . . . . . 76
11.5 Checking the PV Array for Earth Faults . . . . . . . . . . . . . . . . . . . 76
11.6 Checking the Function of the Varistors . . . . . . . . . . . . . . . . . . . 78
12 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.1 Dismantling the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.2 Replacing the Enclosure Lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.3 Packing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
12.4 Storing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
12.5 Disposing of the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13.1 DC/AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13.1.1 Sunny Boy 2500TL Single Tracker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
13.1.2 Sunny Boy 3000TL Single Tracker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
13.2 General Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
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Table of Contents SMA Solar Technology AG
13.3 Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
13.4 Climatic Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
13.5 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.6 Electronic Solar Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.7 Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.8 Grid Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
13.9 Data Storage Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
14 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
15 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
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SMA Solar Technology AG Information on this Document
1 Information on this Document
1.1 Validity
This document is valid for the following device types:
• SB 2500TLST-21
• SB 3000TLST-21
1.2 Target Group
This document is for skilled persons. Only skilled persons with appropriate qualification are allowed
to perform the tasks set forth in this document (see Section 2.2 "Qualification of Skilled Persons"
(page10)).
1.3 Additional Information
Additional information is available at www.SMA.de/en.
Title Document type
Miniature Circuit-Breaker Technical information
Parameters and Measured Values Technical description
SMA Bluetooth ‒ SMA Bluetooth
SMA Bluetooth
Module Technology Technical information
Capacitive Leakage Currents Technical information
®
Wireless Technology Technical description
®
Wireless Technology in Practice Technical information
Installation Manual SB25-30TLST-21-IA-en-13 7
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Information on this Document SMA Solar Technology AG
1.4 Symbols Used
The following types of safety precautions and general information appear in this document:
DANGER!
DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING!
WARNING indicates a safety precaution which, if not avoided, could result in death or
serious injury.
CAUTION!
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE!
NOTICE indicates a situation which, if not avoided, could result in property damage.
Information
Information provides tips that are valuable for effective installation and operation of the
product.
☑ This symbol indicates the result of an action.
Nomenclature
The following nomenclature is used in this document:
Complete designation Designation in this document
Sunny Boy 2500TL Single Tracker/
Sunny Boy 3000TL Single Tracker
Electronic Solar Switch ESS
®
SMA Bluetooth
8 SB25-30TLST-21-IA-en-13 Installation Manual
Wireless Technology Bluetooth
Inverter, product
Page 9
SMA Solar Technology AG Safety
2 Safety
2.1 Intended Use
The Sunny Boy is a PV inverter, which converts the direct current of the PV array to grid-compliant
alternating current and feeds it into the electricity grid.
Principle of a PV plant with this Sunny Boy
The Sunny Boy is suitable for indoor and outdoor use.
The Sunny Boy must only be operated with PV arrays of protection class II, in accordance with
IEC 61730, application class A. The PV modules must be suitable for use with the Sunny Boy and
must have been released by the module manufacturer.
It is only permissible to use PV modules with large capacities to earth if their coupling capacity does
not exceed 1.4 μF.
All components must remain within their operating ranges at all times.
For safety reasons, it is not permitted to modify the product or install components that are not explicitly
recommended or distributed by SMA Solar Technology AG for this product.
Only use the Sunny Boy in accordance with the information provided in the enclosed documentation.
Any other use may result in personal injury or property damage.
• Do not mount the inverter on flammable construction materials.
• Do not mount the inverter in areas where highly flammable materials are stored.
• Do not mount the inverter in a potentially explosive atmosphere.
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Safety SMA Solar Technology AG
The enclosed documentation is an integral part of this product.
• Read and observe the documentation.
• Keep the documentation in a convenient place for future reference.
2.2 Qualification of Skilled Persons
The work described in this document must be performed by skilled persons only. Skilled persons must
have the following qualifications:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using electrical
devices and plants
• Training in the installation and commissioning of electrical devices and plants
• Knowledge of all applicable standards and directives
• Knowledge of and adherence to this document and all safety precautions
2.3 Safety Precautions
DANGER!
Danger to life due to electric shock
When exposed to sunlight, the PV array generates a dangerous DC voltage which is
present in the DC conductors or the live components in the inverter.
• Do not touch the DC conductors.
• Do not touch live components in the inverter.
• Prior to performing any work on the inverter, always disconnect it from any voltage
sources as described in this document (see Section 8.2 "Disconnecting the Inverter
from Voltage Sources" (page57)).
DANGER!
Risk of burns due to electric arc
To prevent arcing when disconnecting cables in the PV array, the ESS and DC connectors
must be removed from the inverter, or the external DC switch-disconnector must be
switched off and the DC connectors must be removed from the inverter before performing
any work on the PV array.
• Before starting work on the PV array, always disconnect the inverter on the AC and
DC sides (see Section 8.2 "Disconnecting the Inverter from Voltage Sources"
(page57)).
• Attach the enclosed warning label "Risk of burns from electric arc" so that it is clearly
visible on the external AC disconnection device.
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SMA Solar Technology AG Safety
WARNING!
Risk of electric shock if DC connectors are pulled out under load
If you disconnect the DC connectors from the inverter under load, an electric arc may
occur, causing electric shock and burns.
• If the inverter is not equipped with an Electronic Solar Switch and the regulations in
the country of installation require an external DC switch-disconnec tor , yo u mu st i nstall
an external DC switch-disconnector.
• Switch off the AC miniature circuit-breaker and disconnect the inve rte r on the DC side
before pulling out the DC connectors.
CAUTION!
Risk of burns due to hot enclosure parts
Some parts of the enclosure may become hot during operation.
• Do not touch any parts other than the lower enclosure lid of the inverter during
operation.
NOTICE!
Water and dust intrusion can damage the inverter.
If the inv erter is n ot e qui ppe d wi th an E SS, the ele ctr oni cs in the i nve rte r co mpl y wi th deg ree
of protection IP65 when closed. If the inverter is equipped with an ESS, the electronics in
the inverter comply with degree of protection IP65 when the inverter is closed and with the
ESS plugged in. The inverter is then protected against dust and water intrusion. The inverter
connection area complies with degree of protection IP54. It is protected against interior
dust deposits and splash water from all angles.
• When the ESS is not plugged in, measures must be taken to protect the inverter
against dust and water.
• Replug the ESS after carrying out any work on the inverter.
Earthing of the PV array
Comply with local regulations for the earthing of the modules and the PV array.
SMA Solar Technology AG recommends connecting the array frame and other ele ctrical ly
conductive surfaces so that there is continuous conduction, and earthing them in order to
ensure maximum protection for property and persons.
Installation Manual SB25-30TLST-21-IA-en-13 11
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Scope of Delivery SMA Solar Technology AG
A
B
C
E
H
FG
I
K
_
+
D
3 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your
specialist dealer if the delivery is incomplete or you find any damage.
Object Quantity Description
A 1 Sunny Boy*
B 1 Wall mounting bracket
C 2 Positive DC connector
D 2 Negative DC connector
E 4 Sealing plugs for the DC connectors
F 1 Installation manual
G 1User manual
H 1 Set of documents with explanations and certificates
I 1 Supplementary sheet with inverter default settings
K 1 Warning label "Risk of burns from electric arc" for the disconnection device
on the AC side.
*Optional without ESS
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SMA Solar Technology AG Product Description
4 Product Description
4.1 Sunny Boy
The Sunny Boy is a PV inverter, which converts the direct current of the PV array to grid-compliant
alternating current and feeds it into the electricity grid.
Item Description
A Type label
B LEDs
C Display
D Electronic Solar Switch*
E Lower enclosure lid
F Upper enclosure lid
*optional
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Product Description SMA Solar Technology AG
4.2 Symbols on the Inverter
Symbol Description Explanation
Inverter This symbol defines the function of the green LED.
It indicates the operating state of the inverter.
Observe the
documentation.
This symbol defines the function of the red LED.
It in dicat es a faul t or di sturban ce. Please rea d the
manual to find information on how to remedy the
fault or disturbance.
Bluetooth This symbol defines the function of the blue LED.
It indicates that communication via Bluetooth is
activated.
QR Code
®
Links to additional information on the inverter can
be found at www.SMA-Solar.com.
NOTICE, danger! Observe the connection requirements for a
second protective conductor 6.3.1 "Conditions
for the AC Connection" (page29).
Danger to life due to
high voltages in the
inverter
The capacitors in the inverter may be charged
with very high voltages.
• Disconnect the inverter from voltage
sources (see Section 8.2) and wait
five minutes before opening the upper lid,
in order to allow time for the capacitors to
discharge.
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SMA Solar Technology AG Product Description
IP54
4.3 Type Label
The type label uniquely identifies the inverter. The type label is located on the right-hand side of the
enclosure. You will find the following information on the type label:
• Device type (Model)
•Serial number (Serial No.)
• Date of manufacture
• Device-specific characteristics
The information on the type label is intended to help you use the inverter safely and receive targeted
customer support from the SMA Service Line. The type label must remain permanently attached to the
inverter.
Symbols on the Type Label
Symbol Description Explanation
Danger to life due to high
voltages
Risk of burns from hot
surfaces
Observe the
documentation.
The inverter operates at high voltages. All work
on the inverter must be carried out by skilled
persons only.
The inverter can get hot during operation. Avoid
contact during operation. Allow the inverter to
cool down sufficiently before carrying out any
work. Wear personal protective equipment such
as safety gloves.
Observe all documentation that is supplied with
the inverter.
Without transformer The inverter does not have a transformer.
DC Direct current
AC Alternating current
Degree of protection: IP54 The inverter is protected against interior dust
deposits and against splash water from all
angles.
Outdoor The inverter is suitable for outdoor installation.
Proper disposal The inverter must not be d isp ose d of tog eth er with
the household waste.
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Product Description SMA Solar Technology AG
kVAr
kVArh
kWh
MVArh
MWh
kW
kWh
A
B
C
D
E
F
G
H
K
L
M
I
t/hday
Symbol Description Explanation
CE marking The inverter complies with the requirements of the
applicable EC directives.
Device class label The product is equipped with a wireless
component that complies with the harmonised
standards.
RAL quality mark for solar
products
The inverter complies with the requirements of the
German Institute for Quality Assurance and
Labelling.
Certified safety The inverter complies with the requirements of the
European Equipment and Product Safety Act.
Australian mark of
conformity
The inverter complies with the requirements of the
applicable Australian guidelines.
4.4 Display
The display shows the current operating data of the inverter (e.g. status, power, input voltage) as well
as faults and disturbances.
Item Description Explanation
A Power Displays the current power
B Day Displays the amount of energy fed in so far today
C Total Total amount of energy fed in until now
D Active functions The symbols indicate which communication or power
regulation functions are enabled.
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SMA Solar Technology AG Product Description
Item Description Explanation
E Phase assignment Shows assignment of the inverter to a phase. It is also
used to indicate external power limitation.
F Electricity grid event number Event number of a disturbance in the electricity grid
G Output voltage/output
current
The display alternately shows the output voltage and
the output current of the inverter.
H Inverter event number Event number of a device disturbance
I Input voltage/input current The display alternately shows the input voltage and
the input current of the inverter.
K PV array event number Event number of a disturbance in the PV array
L Text line The text line shows event messages or instructions.
M Power and yield curve The diagram shows the changes in power over the
last 16 feed-in hours or the energy yields over the last
16 days. Tap the display once to switch between
views.
Symbols on the Display
Symbol Designation Explanation
Tap symbol You can operate the display by tapping it:
• Tapping once: the backlight switches on or the
display scrolls to the next display message.
• Tapping twice: the display shows, in succession,
the firmware version, the serial number or
description of the inverter, the Bluetooth NetID,
the set country standard and the display
language.
Telephone receiver Device disturbance present. Contact the
SMA Service Line.
Spanner Disturbance which can be resolved on-site.
Bluetooth Bluetooth communication is enabled.
Bluetooth connection Bluetooth connection to other devices is active.
Multi-function relay The multi-function relay is active.
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Product Description SMA Solar Technology AG
Symbol Designation Explanation
Temperature symbol The power of the inverter is limited due to excessive
temperature.
Power limitation External active power limitation via the
Power Reducer Box is active.
PV array ‒
Inverter ‒
Gr id rel ay If the grid r ela y is clo sed , the i nve rte r fe eds pow er into
the grid. If the grid relay is open, the inverter is
disconnected from the grid.
Electricity grid ‒
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SMA Solar Technology AG Product Description
B
A
C
4.5 Electronic Solar Switch
The ESS is an optional DC load disconnect unit. The ESS prevents electric arcs from forming when you
remove the DC connector.
Item Description Explanation
A Plug ‒
B Safety precautions
sticker
C ESS sticker • When the ESS is plugged in, the DC electric circuit
• Never operate the inverter without the lower enclosure
lid in place.
• Observe all documentation that accompanies the
inverter.
remains closed.
• To interrupt the DC electric circuit, you first need to
perform steps 1 and 2.
• Remove the ESS.
• Remove all DC connectors.
When plugged in, the ESS forms a conductive path between the PV array and the inverter. Removing
the ESS interrupts the electric circuit and allows you to safely disconnect the DC connectors from the
inverter.
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Product Description SMA Solar Technology AG
4.6 Bluetooth
The inverter is equipped with a Bluetooth interface as standard and can consequently communicate
with other Bluetooth devices (for information on supported SMA products, see www.SMA-Solar.com).
If you wish to communicate via Bluetooth, you can protect the inverter with one plant password for
the user and one plant password for the installer.
All inverters are delivered with a default plant password for the user (0000) and a default plant
password for the installer (1111). To protect the plant from unauthorised access, you must change
the plant passwords using a communication product (for information on changing the plant password,
refer to the manual of the communication product).
If you do not wish to communicate via Bluetooth, deactivate the Bluetooth communication
(see Section 6.6.2 "Setting the Bluetooth NetID" (page50)).
4.7 Slot for Communication Interface
The inverter can optionally be fitted with an extra communication interface (e.g., RS485 or Speedwire/
Webconnect). This communication interface will enable the inverter to communicate with specific
SMA communication products (for information on supported products, see www.SMA-Solar.com).
The communication interface can either be retrofitted or installed ex works if specified in the
corresponding order.
Depending on the type of communication, RS485, Bluetooth or Speedwire/Webconnect, the
parameters and messages are displayed differently in the communication products.
Example: How the country data set parameter is displayed
• For communication via RS 485: parameter CntrySet
• For communication via Bluetooth or Speedwire/Webconnect: parameter Set country
standard
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SMA Solar Technology AG Product Description
4.8 Slot for Multi-Function Interface
The inverter is equipped with a slot for multi-function interfaces. This slot is designed to connect a
simple multi-function relay, an SMA Power Control Module or a fan retrofit kit. The multi-function
interface can be retrofitted or installed at the factory according to a specific order.
Multi-Function Relay
You can configure the multi-function relay for various operating modes. The multi-function relay is
used, for example, to switch on or off operation or fault indicators which are required by standards
in some countries, e.g. IEC 62109-2 (for information on installation and configuration, see installation
manual of the multi-function relay). In order to meet the requirements of IEC 62109-2, either the
multi-function relay must be used as fault indicator and configured accordingly or a connection to
Sunny Portal must be available and the fault alarm via e-mail must be activated in Sunny Portal
(for information on fault alarm via e-mail, see the Sunny Portal user manula at www.SMA-Solar.com).
SMA Power Control Module
The SMA Power Control Module enables the inverter to implement grid management services and is
equipped with an additional multi-function relay (for information on installation and configuration, see
installation manual of the SMA Power Control Module).
Fan Retrofit Kit
The fan retrofit kit is used for additional inverter cooling at high ambient temperatures and also has a
multi-function relay (for information on installation and configuration, see the fan retrofit kit installation
manual). The fan retrofit kit and the SMA Power Control Module cannot be operated in parallel.
4.9 Operating Parameters
Various operating parameters control the functionality of the inverter. Apart from the country data set,
the operating parameters of the inverter can only be adjusted using an SMA communication product
(information on the parameters can be found in the Technical Description "Measured Values, Operating
Parameters and Event Messages" at www.SMA-Solar.com). You can adjust the country data set before
commissioning or within the first ten feed-in hours via two rotary switches in the inverter (see Section
6.5.2 "Setting the Country Standard and Language using the Rotary Switches" (page49)).
4.10 Grid Management
The inverter is equipped with grid management functions.
Depending on the requirements of the network operator, you can activate and configure these
functions (e.g. provision of reactive power, active power limitation) via operating parameters.
For detailed information on the parameters of these functions, see the Technical Description
"Measured Values, Operating Parameters and Event Messages" at www.SMA.de/en in the
"Technical Description" category of the respective inverter.
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Product Description SMA Solar Technology AG
4.11 Varistors
Varistors are voltage-dependent resistors to protect the inverter against overvoltage. The inverter is
equipped with two thermally-monitored varistors.
The function of the varistors can diminish with age or repeated strain as a result of overvoltage. This
can cause varistors to wear. The inverter detects if one of the varistors is defective and indicates a
disturbance.
The varistors are specially manufactured for use in the inverter and are not commercially available.
You must order new varistors directly from SMA Solar Technology AG.
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SMA Solar Technology AG Mounting
5 Mounting
5.1 Safety
DANGER!
Danger to life due to fire or explosions
Despite careful construction, electrical devices can cause fires.
• Do not mount the inverter on flammable construction materials.
• Do not mount the inverter in areas where highly flammable materials are stored.
• Do not mount the inverter in a potentially explosive atmosphere.
CAUTION!
Risk of burns due to hot enclosure parts
• Mount the inverter in such a way that it cannot be touched inadvertently during
operation.
CAUTION!
Risk of injury due to the heavy weight of the inverter
• When mounting, bear in mind that the inverter weighs approx. 23 kg.
5.2 Selecting the Mounting Location
Take the following requirements into consideration when selecting the mounting location:
• The mounting location must be inaccessible to children.
• The mounting method and location must be suitable for the weight and dimensions of the
inverter (see Section 13 "Technical Data" (page85)).
• Mount on a solid surface.
• The mounting location must be clear and safely accessible at all times without the use of
additional aids such as scaffolding or lifting platforms. Non-fulfillment of these criteria may
restrict execution of servicing.
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500 mm
100 mm
100 mm
50 mm
300 mm
Mounting SMA Solar Technology AG
• Mount vertically or tilted backwards by max. 15°.
• The connection area must face downwards.
• Never mount the device with a forward tilt.
• Never mount the device with a sideways tilt.
• Do not mount horizontally.
• Mount at eye level in order that operating states can be read at all times.
• The ambient temperature should be below 40°C to ensure optimum operation.
• Do not expose the inverter to direct solar irradiation as this can cause excessive heating and
thus power reduction.
• In living areas, do not mount the unit on plasterboard walls or similar in order to avoid audible
vibrations. When in use, the inverter emits noises which may be perceived as a nuisance in a
living area.
• Obs erve t he recom mended minimu m cleara nces t o
the walls as well as to other inverters and objects as
shown in the diagram. This will ensure sufficient
heat dissipation and gives you enough space to
unplug the ESS.
• If multiple inverters are mounted in areas with high
ambient temperatures, increase the clearances
between the inverters and ensure an adequate
fresh-air supply. This will prevent a reduction in
inverter power as a result of high temperatures
(details on temperature derating can be found in
the Technical Information "Temperature Derating"
at www.SMA.de/en). A fan for connection to the
inverter is available as an accessory
(see Section 14 "Accessories" (page91)).
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SMA Solar Technology AG Mounting
490 mm
335 mm
175 mm
80 mm
55 mm
33 mm
175 mm
65 mm
45 mm
30 mm
9 mm
9 mm x 18 mm
70 mm
70 mm
31
mm
25
mm
57mm
98 mm
133 mm
5.3 Mounting the Inverter
Additionally required mounting material (not included in the scope of delivery):
– 3 screws (diameter: at least 6 mm)
– 3 wall plugs
– 3 washers (external diameter: at least 18 mm)
1. Use the wall mounting bracket as a drilling template and mark the positions of the drill holes.
Number of drill holes to use
• When mounting onto the wall, use at least two of the horizontal holes and the lower
centre hole.
• Use the two holes in the centre when mounting the device on a pillar.
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Mounting SMA Solar Technology AG
2. Drill the holes.
3. At tac h the w all mou nti ng bra cke t us ing appro pri ate
screws (diameter min. 6 mm) and washers
(outer diameter min. 18 mm).
4. Transport the inverter using the recessed grips on
the sides.
5. Hook the inverter into the mounting bracket from
above.
6. Check both sides of the inverter to make sure it is correctly in place.
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SMA Solar Technology AG Mounting
Optional Anti-Theft Protection
To protect the inverter from theft, you can lock it to the wall mounting bracket using a padlock.
The padlock must meet the following requirements:
–Size:
A: 6 mm to 8 mm diameter
B: 23 mm to 29 mm
C: 23mm to 28mm
D: 39 mm to 50 mm
E: 13 mm to 18 mm
–stainless
– hardened shackle
– protected lock cylinder
Outdoor installation
Always use a lock suitable for outdoor applications. Check regularly that the padlock is
working properly.
• Thread the padlock shackle from the centre of the
device outwards through the metal clip on the wall
mounting bracket and the slot on the inverter, and
close the padlock.
Storage of the key
Keep the key in a safe place in case it is needed for service purposes.
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Electrical Connection SMA Solar Technology AG
6 Electrical Connection
6.1 Safety
NOTICE!
Electrostatic discharge can damage the inverter
Internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Earth yourself before touching any components.
6.2 Overview of the Connection Area
The following figure shows the inverter connection area with the lower enclosure lid open.
Item Description
A DC connectors for connecting the strings
B Socket for connecting the ESS*
C Plug for connecting the optional multi-function relay or additional fan kit
D Plug for optional communication via RS485
E Terminal for the AC cable
F Cable gland (12 mm to 21 mm) for routing the AC cable
G Enclosure opening for connecting the optional multi-function relay or additional fan kit
or optional communication via RS485
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Item Description
H Switch for temporarily changing the display language to English (for service purposes)
I Rotary switch for the configuration of Bluetooth communication
K Enclosure opening for optional communication via RS485
L Rotary switches for setting the country standard and display language
M Enclosure opening for connecting the optional multi-function relay or additional fan kit
N Slot for SD Card
O Earth terminal for additional earthing of the inverter
P Enclosure opening for installing a fan (available as an additional fan kit)
*optional
6.3 Connection to the Electricity Mains (AC)
6.3.1 Conditions for the AC Connection
• Comply with the connection requirements of your network operator.
Residual-Current Device
The inverter is equipped with an integrated all-pole-sensitive residual-current monitoring unit. The
inverter can automatically differentiate between residual currents and normal capacitive leakage
currents. If the network operator stipulates a residual-current protective device, you must use a
residual-current protective device that triggers in the event of a residual current of 100 mA or more.
Further information on the use of a residual-current protective device can be found in the Technical
Information "Criteria for Selecting an RCD" at www.SMA.de/en.
Overvoltage Category
The inverter can be deployed in grids of installation category III or lower, as defined under
IEC 60664-1. This means that it can be permanently connected at the grid-connection point in a
building. In installations involving long cable routes outdoors, additional overvoltage-reducing
measures must be taken so that the overvoltage category is reduced from IV to III (for further
information, see the Technical Information "Overvoltage Protection" at www.SMA-Solar.com).
Cable Dimensioning
Use Sunny Design Version 2.0 or higher for sizing the conductor cross-sections (see Sunny Design
program at www.SMA.de/en).
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Electrical Connection SMA Solar Technology AG
Cable Requirements
Object Description Value
A External diameter 12 mm to 21 mm
B Conductor cross-section maximum 10 mm²
C Stripping length approx. 12 mm
Connection of a Second Protective Conductor
The inverter is equipped with a protective conductor monitoring device. This protective conductor
monitoring device detects when there is no protective conductor connected and disconnects the inverter
from the electricity grid if this is the case. Depending on the installation site and earthing system, it may
be advisable to deactivate the protective conductor monitoring. This would apply, for instance, if there
is no neutral conductor and you intend to install the inverter between two line conductors. If you are
uncertain about this, ask your network operator or SMA Solar Technology AG to advise.
• Depending on the earthing system, deactivate the protective conductor monitoring device
(see Section 7.4).
• To ensure safety in accordance with IEC 62109 when the protective conductor monitoring is
deactivated, connect a protective conductor to the connecting terminal plate for the AC cable
(minimum cross-section: 10 mm², copper wire).
or
• Connect a second protective conductor with the same cross-section as the original protective
conductor (see Section 6.3.3 "Additional Earthing of the Enclosure" (page35)). This will
prevent touch current if the original protective conductor fails.
Connection of a second protective conductor
In some countries a second protective conductor is required as a matter of principle. In
each case, observe the applicable regulations for the site.
Load Disconnection Unit
Attach the warning labels on the load disconnect unit on the AC side
To prevent arcing, always disconnect the inverter from the AC and DC side before starting
work on the PV array.
Attach the warning label "Risk of burns from electric arc" so that it is clearly visible on the
external AC disconnection device.
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You must install a separate miniature circuit-breaker for each inverter in order to ensure that the
inverter can be securely disconnected under load. The maximum permissible fuse protection can be
found in Section 13 "Technical Data" (page85).
For detailed information and examples of miniature circuit-breaker design, see the Technical
Information "Miniature Circuit-Breaker" at www.SMA.de/en.
DANGER!
Danger to life due to fire
When more than one inverter is connected in parallel to the same miniature circuit-breaker,
the protective function of the miniature circuit-breaker is no longer guaranteed. This could
result in a cable fire or destruction of the inverter.
• Never connect several inverters to the same miniature circuit-breaker.
• Observe the maximum permissible fuse protection of the inverter when selecting the
miniature circuit-breaker.
DANGER!
Danger to life due to fire
When a generator (inverter) and a load are connected to the same miniature circuitbreaker, the protective function of the miniature circuit-breaker is no longer guaranteed.
The currents from the inverter and the electricity grid can accumulate to form overcurrents
which are not detected by the miniature circuit-breaker.
• Never connect loads between the
inverter and the miniature circuit-breaker
without fuse protection.
• Always fuse loads separately.
NOTICE!
Damage to the inverter by using screw-type fuses as a load disconnection unit
A s cre w-t ype fus e, e .g. DIA ZED fus e or NEO ZED fus e, i s no t a s witch-disconnector and thus
may not be used as a load disconnection unit. A screw-type fuse only acts as cable
protection.
If the inverter is disconnected under load using a screw-type fuse, the inverter may be
damaged.
• Use only a switch- disconn ector or a mini ature circuit -breaker as a l oad disconnec tion
unit.
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Electrical Connection SMA Solar Technology AG
6.3.2 Connecting the Inverter to the Electricity Mains (AC)
1. Make sure that the mains voltage is within the permissible voltage range.
The exact operating range of the inverter is specified in the operating parameters. The
corresponding documents are available in the download area at www.SMA.de/en, in the
"Technical Description" category of the respective inverter.
2. Shut down the miniature circuit-breaker and secure it to prevent reactivation.
3. If an external DC switch-disconnector is in use, disconnect it.
4. If an ESS is in use, disconnect the ESS.
5. Loosen all six captive screws and remove the lower
enclosure lid. Use an Allen key (AF 3) to do this.
6. Check that the country setting of the inverter is correct using the supplementary sheet with the
default settings provided.
If the inverter is not set to the desired country standard, then adjust the country standard
(see Section 6.5.2 "Setting the Country Standard and Language using the Rotary Switches"
(page49)).
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7
9
O
N
E
7
9
O
N
7. For ease of connection, loosen the display screw
until the display can be flipped up.
8. Flip the display up until it clicks into place.
9. Undo the swivel nut of the AC cable gland and
remove the filler-plug from the cable gland.
Seal in the AC cable gland
There is a two-part seal in the cable gland.
Remove the internal ring insert if necessary,
e.g. to introduce a thicker cable.
The following guideline values apply:
• Cable diameter with seal and insert: 12 mm to 16 mm
• Cable diameter with seal only and without insert: 15 mm to 21 mm
10. Pull the cable through.
11. Raise all 3 terminals of the AC terminal as far as they will go.
NOTICE!
Risk of fire when connecting two conductors to a single terminal
If two conductors are connected to one terminal, this may result in a poor electrical contact
which could pose a risk of overheating or fire.
• Never connect more than one conductor per terminal.
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Electrical Connection SMA Solar Technology AG
12. Connect L, N and the protective conductor (PE) to
the AC terminal in accordance with the label.
Th e pr ote cti ve conduc tor mus t be 5 m m lo nge r th an
the insulated L and N wires.
L and N must not be swapped.
CAUTION!
Danger of crushing when terminals snap shut
The terminals close by snapping down fast and hard.
• Press the terminals down with your thumb, do not grip the sides of the terminal
between fingers and thumb.
• Keep fingers away from the terminals.
13. Close all terminals of the AC terminal until they snap into place.
14. Check that the cable ends are firmly secured.
15. Fold down the display and fasten the screw hand-tight.
16. Hand-tighten the swivel nut firmly to the cable gland. Ensure that the cable is securely in place.
DANGER!
Danger to life due to high voltages in the inverter
• Do not switch on the miniature circuit-breaker until the PV array has been connected
and the inverter is securely closed.
17. Attach the enclosed warning label "Risk of burns from electric arc" so that it is clearly visible on
the load disconnect unit on the AC side.
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6.3.3 Additional Earthing of the Enclosure
If required in the country of installation, you can use the earth terminal on the enclosure to connect a
second protective conductor or as equipotential bonding.
1. Undo screw (A) half way. Use an Allen key (AF 4)
to do this.
2. Insert the stripped earthing cable (D) under the
clamping bracket (C) (maximum conductor
cross-section 10 mm²).
3. Fasten terminal (C):
– Place the conical spring washer over the screw.
The grooved side of the conical spring washer
must face towards the screw head.
– Tighten the screw (torque: 6 Nm). Use an Allen
key (AF 4) to do this.
☑ The teeth of the conical spring washer press into the clamping bracket. The earthing cable
now has conductive connection to the enclosure.
6.4 Connecting the PV Array (DC)
6.4.1 Conditions for DC Connection
Use of Y adaptors
Y adaptors must not be visible or freely accessible within close proximity of the inverter.
• The DC circuit must not be interrupted by Y adaptors.
• Observe the procedure for disconnecting the inverter (see Section 8.2
"Disconnecting the Inverter from Voltage Sources" (page57)).
• Requirements for the PV modules of the connected strings:
– same type
– same number of in-series-connected PV modules
– identical alignment
– identical tilt
• T he c onn ect ion cab les of t he P V mo dul es m ust be e qui ppe d wi th connectors. The DC connectors
for the DC connection are included in the delivery.
• At the DC input of the inverter, the following limits must not be exceeded:
Maximum input voltage Maximum input current
750 V (DC) 15.0 A (DC)
• On the statistically proven coldest day of the year the open-circuit voltage of the PV array must
never exceed the maximum input voltage of the ivnerter.
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Electrical Connection SMA Solar Technology AG
6.4.2 Assembling the DC Connectors
All PV display module connection cables must be equipped with the DC connectors supplied before
connecting them to the inverter.
Assemble the DC connectors as described below. Be sure to observe the correct polarity.
The DC connectors are marked with the symbols "+" and " − ".
Cable Requirements
• Use a PV1-F cable.
Procedure
1. Lead the stripped cable all the way into the DC
connector.
2. Press the clamping bracket down until it audibly
snaps into place.
3. Ensure that the cable is correctly positioned:
Result Measure
☑ If the stranded wires are visible in the
chamber of the clamping bracket, the cable
is correctly positioned.
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• Proceed to step 4.
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SMA Solar Technology AG Electrical Connection
Result Measure
☑ If the stranded wires are not visible in the
chamber, the cable is not correctly
positioned.
• Release the clamping bracket. To do so,
insert a 3.5 mm screwdriver into the
clamping bracket and lever it open.
• Remove the cable and go back to step 1.
4. Push the swivel nut up to the thread and tighten (torque: 2 Nm).
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Electrical Connection SMA Solar Technology AG
6.4.3 Disassembling the DC Connector
1. Unscrew the swivel nut.
2. To release the DC connector: Insert a 3.5 mm
screwdriver into the snap slot on the side and lever
it open.
3. Carefully pull the DC connector apart.
4. Release the clamping bracket. To do so, insert a
3.5 mm screwdriver into the clamping bracket and
lever it open.
5. Remove the cable.
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SMA Solar Technology AG Electrical Connection
6.4.4 Connecting the PV Array (DC)
DANGER!
Danger to life due to high voltages in the inverter
• Before connecting the PV array, make sure that the miniature circuit-breaker is
disconnected and cannot be reconnected.
NOTICE!
Excessive voltages can destroy the multimeter
• Only use multimeters with a DC input voltage range up to at least 1,000 V.
1. Check the connection cable of the PV modules for
correct polarity and make sure that the maximum
input voltage of the inverter is not exceeded.
At an ambient temperature above 10°C, the opencircuit voltage of the PV modules must not be more
than 90% of the maximum inverter input voltage. If
this is not the case, review the plant design and the
PV module circuitry. At lower ambient
temperatures, the maximum input voltage of the
inverter could otherwise be exceeded.
NOTICE!
Destruction of the inverter due to overvoltage
If the voltage of the PV modules exceeds the maximum input voltage of the inverter, it c ould
be destroyed by the overvoltage. This will void all warranty claims.
• Do not connect any strings to the inverter which have an open-circuit voltage greater
than the maximum input voltage of the inverter.
• Check the plant design.
2. Check strings for earth faults (see Section 11.5 "Checking the PV Array for Earth Faults" (page76)).
DANGER!
Danger to life due to electric shock.
• Do not connect any strings in which earth faults are present.
• Before connecting the DC cable, rectify the earth fault in the respective string.
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Electrical Connection SMA Solar Technology AG
+
1
2
+
+
3. Check the DC connectors for correct polarity and
connect them.
☑ The DC connectors click audibly into place.
For details on how to release the DC connectors,
see Section 8.2 "Disconnecting the Inverter from
Voltage Sources" (page57).
4. If you do not need all DC inputs on the inverter, seal the enclosure with DC connectors and
sealing plugs:
Sealing plugs
•Do not insert the sealing plugs directly into the DC inputs on the inverter.
– For unused DC connectors, push down the
clamping bracket and push the swivel nut up to
the thread.
– Insert the sealing plug into the DC connector.
– Tighten the swivel nut (torque: 2 Nm).
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6
5
3
2
4
1
– Insert the DC connectors with sealing plugs into
the corresponding DC inputs on the inverter.
☑ The DC connectors click audibly into place.
5. Ensure that all DC connectors are securely in place.
6. Close the lower enclosure lid again using the
six screws.
Tighten the screws (2 Nm torque) in the order
shown on the right.
7. If an ESS is used, check it for wear as described in
Section 9.3 "Checking the Electronic Solar Switch
for Wear" (page62) and reattach it firmly.
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Electrical Connection SMA Solar Technology AG
NOTICE!
Damage to the ESS
If it is not connected correctly, the ESS can be damaged.
• Plug the handle firmly onto the jack of the ESS.
• The handle must be flush with the enclosure.
• Make sure that the ESS is securely attached to the inverter.
Currents in DC cabling
After connecting the ESS or switching on the DC switch-disconnector, DC currents may
occur in the DC cabling, even when there is no AC-side supply. This is not an error but
normal behaviour of the inverter when in operation.
☑ The PV array is connected. You can now commission the inverter (see Section 7 "Commissioning"
(page52)). Other connection options are optional (see Section 6.6 "Communication" (page50)).
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AB
E
1
2
ON
79
6.5 Setting the Country Standard and Display Language
The inverter can be configured for various countries. This can be done prior to commissioning via
two rotary switches on the display or after commissioning by configuring the "CntrySet" or
"Set country standard" parameter using a communication product (e.g. Sunny WebBox or
Sunny Explorer). For devices ordered without any specified country of installation, the default country
data set is "VDE-AR-N4105-HP" and the display language is set to German.
Both rotary switches are set to 0 upon delivery. If you have ordered the inverter with specific country
settings, they will have already been preset at the factory via a communication product. In this case,
you will not be able to recognise the currently valid setting by the switch position.
If changes are made via the rotary switches or via a communication product, the default grid
parameters are overwritten. They cannot be restored, and must be re-entered via a communication
product.
The display language can be changed at any time using the rotary switches, independent of the grid
parameters. This means that the default grid parameters remain unchanged, but the display messages
are shown in the set language.
Changes will be applied immediately after switching the miniature circuit-breaker on. If an
unprogrammed switch setting is selected, the inverter displays an error message. The last valid setting
is retained.
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SMA Grid Guard-Protected Country Data Sets
In some countries, the local connection conditions demand a mechanism which prevents the feed-in
parameters from being changed. Therefore, certain country data sets are protected against
unauthorised changes. They can only be unlocked with a personal access code - the
SMA Grid Guard code.
SMA Grid Guard-protected country data sets are automatically locked for ten feed-in hours after
commissioning, or after the last alteration. If the country data set is changed after these ten feed-in
hours, the inverter will not apply the changes but display the error message "Grid param. locked".
If, however, a later change to the country data set only relates to a change of the display language
via the rotary switches in the inverter, this change is immediately applied.
It is also p ossible to configure countr y data se ts (parameter "CntrySet" or "Set country standard"), and
to lock or unlock these manually via a communication product. To lock a data set, enter the digit
sequence "54321" instead of the password in the SMA Grid Guard code field. The data set can only
be unlocked by entering a personal, ten-digit SMA Grid Guard code which is valid for a maximum
of ten feed-in hours. The application form for the personal access code is available at
www.SMA.de/en, in the "Certificate" category of the respective inverter.
The language can be configured without a password, regardless of the country data set.
Changing parameters in SMA Grid Guard-protected country data sets
If the parameters within protected country data sets are changed, these are no longer
protected and instead of the standard "ADJ" or "Special setting" is displayed. In this case,
a change to parameters is not locked automatically after ten feed-in hours, but has to be
locked manually. To manually lock the parameters, set the SMA Grid Guard code to
"54321".
Further information on parameter settings
For detailed information on making adjustments and changing parameters, see the
corresponding user manual for your communication product.
The last change (executed via rotary switch or communication product) is always verified and
activated if applicable. Consequently, the switch position may not necessarily show the actual country
setting.
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6.5.1 Checking the Country Standard
Make sure that the inverter is set to the country of installation.
Before commissioning:
• Check that the country standard of the inverter is correct by comparing the default settings of
the inverter listed on the supplementary sheet provided.
After commissioning:
• Check that the country standard is correct on the basis of the display message during
(re-)commissioning (see Section 7 "Commissioning" (page52)).
• Check whether the country standard is correct by tapping the display twice and viewing the
display messages of the start-up phase again.
or
• Check that the country standard is correct using the "SMA grid guard" measuring channel via
a communication product.
Display language
Once you have set the country standard, you can always set the display language later
using rotary switch B. However, you have to then set rotary switch A to "0" in order to keep
the country data set.
The settings of each country data set are specified in the operating parameters. The parameters can
be read using a communication product. The description of the operating parameters is available at
www.SMA.de/en in the category "Technical Description" of the respective inverter.
(A) (B) Country data set Display language Grid Guard
Country
protection
0 0 default setting default setting dependent on
parameter set
0 1 retained English dependent on
parameter set
0 2 retained German dependent on
parameter set
0 3 retained French dependent on
parameter set
0 4 retained Spanish dependent on
parameter set
0 5 retained Italian dependent on
parameter set
0 6 retained Greek dependent on
parameter set
0 7 retained Czech dependent on
parameter set
Installation Manual SB25-30TLST-21-IA-en-13 45
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
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Electrical Connection SMA Solar Technology AG
(A) (B) Country data set Display language Grid Guard
Country
protection
0 8 retained Korean dependent on
parameter set
0 9 retained Portuguese dependent on
parameter set
0 A retained Dutch dependent on
parameter set
0 B retained Slovenian dependent on
parameter set
0 C retained Bulgarian dependent on
parameter set
0 D retained Polish dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
dependent on
parameter set
1 0 VDE0126-1-1 German yes Germany,
Switzerland,
1 2 VDE-AR-N4105
a)
1 4 VDE-AR-N4105-MP
1 6 VDE-AR-N4105-HP
German yes Germany
b)
German yes Germany
c)
German yes Germany
1 8 VDE0126-1-1 French yes Switzerland,
France
*
1 9 VDE0126-1-1/UTE
French yes France
2 0 VDE0126-1-1 Italian yes Switzerland
3 1 CEI 0-21 intern
3 2 CEI 0-21 extern
d)
e)
Italian yes Italy
Italian yes Italy
4 0 RD1699* Spanish yes Spain
4 1 RD1663/661-A* Spanish yes Spain
4 8 PPC* Greek no Greece
4 9 PPC* English no Greece
5 8 G83/1-1 English no England
5 A G59/2 English no England
6 0 EN50438* German yes various EU
countries
6 1 EN50438* English yes various EU
countries
6 2 EN50438* French yes various EU
countries
6 3 EN50438* Italian yes various EU
countries
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SMA Solar Technology AG Electrical Connection
(A) (B) Country data set Display language Grid Guard
Country
protection
6 4 EN50438* Spanish yes various EU
countries
6 5 EN50438* Greek yes various EU
countries
6 6 EN50438* Czech yes various EU
countries
6 7 EN50438* Portuguese yes various EU
countries
6 8 EN50438* Bulgarian yes various EU
countries
6 9 EN50438* Polish yes various EU
countries
6 E NEN-EN50438 Dutch yes Netherlands
7 0 EN50438-CZ* Czech yes Czech Republic
7 1 EN50438-CZ* English yes Czech Republic
7 2 EN50438-CZ* German yes Czech Republic
74PPDS* Czech yes Czech Republic
75PPDS* English yes Czech Republic
7 6 PPDS* German yes Czech Republic
7 8 C10/11/2012 French yes Belgium
7 9 C10/11/2012 English yes Belgium
7 A C10/11/2012 German yes Belgium
7 B C10/11/2012 Dutch yes Belgium
C0Customer English no flexible
C 1 Customer German no flexible
C 2 Customer French no flexible
C 3 Customer Spanish no flexible
C4Customer Italian no flexible
C 5 Customer Greek no flexible
C 6 Customer Czech no flexible
D 0 Off-Grid 60 Hz* English no flexible
D 1 Off-Grid 60 Hz* German no flexible
D 2 Off-Grid 60 Hz* French no flexible
D 3 Off-Grid 60 Hz* Spanish no flexible
D 4 Off-Grid 60 Hz* Italian no flexible
D 5 Off-Grid 60 Hz* Greek no flexible
D 6 Off-Grid 60 Hz* Czech no flexible
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Electrical Connection SMA Solar Technology AG
(A) (B) Country data set Display language Grid Guard
Country
protection
E 0 Off-Grid 50 Hz* English no flexible
E 1 Off-Grid 50 Hz* German no flexible
E 2 Off-Grid 50 Hz* French no flexible
E 3 Off-Grid 50 Hz* Spanish no flexible
E 4 Off-Grid 50 Hz* Italian no flexible
E 5 Off-Grid 50 Hz* Greek no flexible
E 6 Off-Grid 50 Hz* Czech no flexible
a) Setting in accordance with VDE-AR-N-4105 for PV plants ≤ 3.68 kVA (Germany)
b) Setting in accordance with VDE-AR-N-4105 for PV plants > 3.68 kVA and < 13.8 kVA (Germany)
c) Setting in accordance with VDE-AR-N-4105 for PV plants > 13.8 kVA (Germany)
d) Setting in accordance with CEI 0-21 for PV plants ≤ 6 kW (Italy)
e) Setting in accordance with CEI 0-21 for plants with external grid and plant protection > 6 kW (Italy)
*Planned
If the inverter is not set to the country of installation, there are several ways of configuring the required
country standard:
• Setting via the two rotary switches (see Section 6.5.2 "Setting the Country Standard and
Language using the Rotary Switches" (page49)).
• Alternatively you can conduct the settings via the "CntrySet" or "Set country standard"
parameters via a communication product, once you have commissioned the inverter.
•If you require adjusted parameter settings for your installation site, you can change these with
the help of a communication product.
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E
7
9
O
N
E
7
9
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9
ON
E
6.5.2 Setting the Country Standard and Language using the Rotary Switches
1. Disconnect the inverter and open it (see Section 8.2 "Disconnecting the Inverter from Voltage
Sources" (page57)).
DANGER!
Danger to life due to high voltages in the event of electricity grid failure
If you set the inverter to stand-alone grid operation "Off-Grid 50 Hz"/"Off-Grid 60 Hz",
you are not allowed to operate the inverter on the electricity grid, but only on the standalone grid, because the inverter does not satisfy any country-specific standards and
guidelines in this setting. In the event of electricity grid failure, this will prevent the danger
of backfeed.
• If the inverter is set to "Off-Grid 50 Hz" or "Off-Grid 60 Hz", never operate the
inverter directly on the electricity grid.
2. Set the arrows on both rotary switches (A and B) to
the required positions with a screwdriver (see table
in Section 6.5.1 "Checking the Country Standard"
(page45)). Use a screwdriver with blade width
2.5 mm.
Temporarily setting the display language
to English
In addition, it is possible to use a switch to set
the display language to English temporarily,
e.g. for service purposes. This will have no
effect on the inverter parameter settings.
• Push the left switch 1 up until it locks into
pl ace. U se an o bje ct wit h a sma ll tip , e.g.
a ballpoint pen to do this.
• To reset the display language to the
original language, push the left switch 1
back down until it locks into place.
3. Close the inverter (see Section 8.3 "Closing the Inverter" (page60)).
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Electrical Connection SMA Solar Technology AG
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6.6 Communication
6.6.1 Interface for RS485 Communication
If you have ordered an inverter with an interface for wireline communication, the inverter will be
delivered with the interface ready installed.
You can also subsequently order an inte rface for wireline commu nication (see Section 14 "Accessories"
(page91)). You will find a detailed illustration of the wiring principle and instructions for conversion in
the communication interface retrofit kit.
6.6.2 Setting the Bluetooth NetID
Communication with a communication product via Bluetooth is activated by default. Networking with
other inverters via Bluetooth is deactivated by default.
The following configuration settings are possible via a rotary switch (switch C):
Switch position (NetID) Setting
0 Bluetooth communication is deactivated.
1 Communication with a communication product via Bluetooth is activated
and networking with other inverters is deactivated. (default setting)
2 to F Networking via Bluetooth with other inverters is activated.
In order to restrict communication via Bluetooth between the inverters of your PV plant and those of
neighbouring systems, you can assign an individual NetID to the inverters of your PV plant (switch
position 2 to F). However, this is only necessary if neighbouring plants are situated within a radius of
500 m.
For all inverters in your PV plant to be detected by your communication product, they must all have
the same NetID.
1. Disconnect the inverter and open it (see Section 8.2 "Disconnecting the Inverter from Voltage
Sources" (page57)).
2. Set the arrow on the rotary switch (C) to the
required position with a screwdriver. Use a 2.5 mm
screwdriver for this purpose.
3. Close the inverter (see Section 8.3 "Closing the
Inverter" (page60)).
Activation of settings
The Bluetooth settings will only be applied once the inverter has been commissioned.
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SMA Solar Technology AG Electrical Connection
6.6.3 Multi-Function Relay
If you have ordered an inverter with a multi-function relay, the multi-function relay is installed upon
delivery. You can subsequently order a multi-function relay (for order number, see Section 14
"Accessories" (page91)).
A description of the installation and electrical connection can be found in the installation manual of
the multi-function relay.
You can find detailed information on the configuration of the multi-function relay in the manual of the
multi-function relay at www.SMA.de/en.
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Commissioning SMA Solar Technology AG
7 Commissioning
7.1 Commissioning the Inverter
1. The following conditions must be fulfilled before commissioning:
– Correct mounting (see Section 5.3)
– Correct country setting (see Section 6.5.1)
– AC cable is correctly connected (electricity grid)
– Protective conductor is correctly connected (see Section 6.3.3)
– DC cables (PV strings) are correctly connected
– Unused DC inputs are closed using the corresponding DC connectors and sealing plugs
– All enclosure openings are closed
– The enclosure lid is securely screwed into place
– An external DC switch-disconnector is connected or, if applicable, the ESS is firmly in place
– The AC distribution is correctly installed
– The miniature circuit-breaker is correctly sized
2. Switch the miniature circuit-breaker on.
☑ Green LED is lit: commissioning successful.
or
☑ G reen LED will flash if i rradiat ion is insuffi cient: grid co nnection conditions have not yet been
reached. Wait for sufficient irradiation.
or
☑ Red LED is lit: a disturbance has occurred. Locate and eliminate the fault
(see Section 11 "Troubleshooting" (page64)).
Self-test in accordance with CEI 0-21 during initial start-up (applies to Italy only)
The I talian standard presc ribes that an i nverter can only opera te on the electricity grid after
the disconnection times for overvoltage, undervoltage, minimum frequency and maximum
frequency have been checked.
If you ha ve c onfig ured t he C EI0-2 1 I nt / CE I 0 -21 int ern count ry d ata se t, start t he sel f-t est
(see Section 7.3 "Self-Test in Accordance with CEI 0-21 for Plants ≤ 6 kW" (page54)).
3. If a multi-function relay is connected, switch on the supply voltage to the relay.
4. For communication via Bluetooth, make the following settings:
– Change the plant time (see the manual of the communication product).
– Change the passwords (see the manual of the communication product).
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SMA Solar Technology AG Commissioning
FW PACK XXXX HP XXXX
SN 2100237148 NetIDA
VDE-AR-N4105-MP
Sprache Deutsch
7.2 Display Messages during the Start-Up Phase
Illustrated display messages
The display messages illustrated in this section serve as examples and, depending on the
country setting, may differ from the actual display messages on your inverter.
• The firmware version of the internal processors
appears first in the text line.
• After five seconds, or after tapping on the display,
the serial number or the description of the inverter
and the NET ID for communication via Bluetooth
will appear. The designation of the inverter can be
changed via a communication product.
• After a further five seconds, or after a further tap,
the configured country standard is displayed
(example: "VDE-AR-N4105-MP").
• After a further five seconds, or after a further tap,
the configured language is displayed
(example: "Sprache Deutsch"
(Language German)).
• D uri ng n orm al o per ati on, the te xt l ine of t he d isp lay wil l be blank . Fo r ev ent mes sag es d isp lay ed
in the text line and their meaning, refer to Section 11 "Troubleshooting" (page64).
Showing display messages again
If you want to view the display messages of the start phase again whilst in normal
operation, double-tap the display.
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Commissioning SMA Solar Technology AG
7.3 Self-Test in Accordance with CEI 0-21 for Plants ≤ 6 kW
7.3.1 Starting the Self-Test
The self-test only applies to inverters that are configured with the country data
set CEI0-21 Int/CEI 0-21 intern.
The self-test is only valid for inverters lic ensed for Ital y and configured with the country data
set CEI0-21 Int/CEI 0-21 intern.
If the inverter is configured to CEI0-21 Ext / CEI 0-21 extern, no self-test is required.
The Italian standard requires that all inverters in plants ≤ 6 kW feeding into the electricity grid
perform a self-test in accordance with CEI 0-21. During the self-test, the inverter will consecutively
check the reaction times for overvoltage, undervoltage, maximum frequency and minimum frequency.
The self-test changes the upper and lower trip-limit values for each protect ive function on a linear b asis
for frequency monitoring and voltage monitoring. As soon as the measured value exceeds the
permitted trip-limit value, the inverter disconnects from the electricity grid. In this way, the inverter
determines the reaction time and checks itself.
After the self-test has been completed, the inverter automatically switches back to feed-in operation,
resets the original shutdown conditions and connects to the electricity grid.
Requirements:
• Country data set must be configured to CEI0-21 Int / CEI 0-21 intern.
or
• Country data set must be configured to trimmed / Special setting based on
CEI0-21 Int / CEI 0-21 intern.
• A report for entering the test results in compliance with CEI 0-21 must be on hand.
• The inverter must be in operation and in the start-up phase.
1. As soon as the configured country data set appears in the display, tap once on the display
within ten seconds.
☑ A message informing you that the self-test has started is shown in the display:
Avvio Autotest.
– The message Avvio Autotest is not shown in the display? You exceeded the 10-second time
limit so the self-test cannot start.
– Restart the self-test (see Section 7.3.3).
2. Tap on the display within 20 seconds and enter the test results into the test report as they
appear.
☑ The self-test starts.
☑ The inverter displays the results of the individual tests for overvoltage, undervoltage,
maximum frequency and minimum frequency. The results are displayed three times in
succession for ten seconds each.
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SMA Solar Technology AG Commissioning
Example: Display messages for overvoltage test
• Name of the test: Autotest (59.S1) 240.00V
• Disconnection value: Valore di soglia con 230,00 V
• Normative value: Va. taratura 253.00V
• Disconnection time: Tempo intervento 0.02s
• Current mains voltage: Tensione di rete Val.eff.: 229.80V
7.3.2 Abortion of the Self-Test
If, during the self-test, an unexpected disconnection requirement occurs, the self-test is aborted.
The same applies if the DC voltage is so low that feed-in cannot be continued.
• A message informing you that the self-test has been aborted is shown in the display for ten
seconds: Autotest interroto.
• Restart the self-test (see Section 7.3.3).
7.3.3 Restarting the Self-Test
1. Disconnect the miniature circuit-breaker and secure against reconnection.
2. If the multi-function relay is used, switch off the load supply voltage.
3. Remove the ESS from the inverter for five minutes and then plug it in again firmly.
4. Restart the inverter
☑ The inverter is now back in the start-up phase and you can start the self-test
(see Section 7.3.1).
7.4 Deactivating Protective Conductor Monitoring
If the inverter is to be installed in an IT system or other earthing system for which it is advisable to
deactivate the protective conductor monitoring, deactivate it by means of a communication product
as described in this section (for information on the setting of operating parameters, see respective
communication product manual).
Requirements:
• A communication product that is appropriate for the type of communication used must be
available.
1. Log in to the communication product as an Installer.
2. Set the parameter PE monitoring or PEOpnMon to Aus or Off.
3. Save setting.
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Opening and Closing SMA Solar Technology AG
8 Opening and Closing
8.1 Safety
DANGER!
Danger to life due to high voltages in the inverter
Before opening the inverter, observe the following:
• Disconnect the miniature circuit-breaker and secure against reconnection.
• If a multi-function relay is connected, disconnect its supply voltage and ensure that it
cannot be reconnected.
DANGER!
Danger to life due to electric shock.
If the DC connectors are pulled out without first disconnecting the ESS or switching off the
DC switch-disconnector, a dangerous electric arc can occur.
• Disconnect the ESS or switch off the DC
switch-disconnector first.
• Then, open the lower enclosure lid and
remove the DC connectors.
NOTICE!
Electrostatic discharge can damage the inverter
The internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Earth yourself before touching any components.
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SMA Solar Technology AG Opening and Closing
8.2 Disconnecting the Inverter from Voltage Sources
1. Disconnect the miniature circuit-breaker and secure against reconnection.
2. If a multi-function relay is connected, disconnect its supply voltage and ensure that it cannot be
reconnected.
3. If an external DC switch-disconnector is in use, disconnect it.
4. If an ESS is in use, disconnect it.
5. Loosen all six captive screws and remove the lower
enclosure lid. Use an Allen key (AF 3) to do this.
6. Use a current clamp to make sure no current is
present in the DC cables.
☑ If current is present, check the installation.
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Opening and Closing SMA Solar Technology AG
7. Release and disconnect all DC connectors.
To do this, insert a flat-blade screwdriver
(b lad e wi dth : 3. 5 m m) i nto one of the sid e sl ots and
pull the DC connectors straight out.
Do NOT PULL ON THE CABLE.
8. Wait until the LEDs, display and fault indicator have gone out.
9. Verify the absence of voltage between L to N at the
AC terminal using a suitable multimeter. The
maximum diameter of the test probe is 2 mm.
☑If voltage is present, check the installation.
10. Verify that no voltage is present between L and PE
at the AC terminal using a suitable multimeter.
☑If voltage is present, check the installation.
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SMA Solar Technology AG Opening and Closing
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11. Loosen the screw on the display and flip the display
up until it clicks into place.
12. Verify the absence of voltage in the multi-function
relay against PE at all terminals. The maximum
diameter of the test probe is 2 mm.
☑If voltage is present, check the installation.
☑ The inverter is open and no voltage is present.
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Opening and Closing SMA Solar Technology AG
6
5
3
2
4
1
8.3 Closing the Inverter
1. Check the DC connectors for correct polarity and
connect them to the inverter.
☑ The DC connectors click audibly into place.
To release the DC connectors, see Section 8.2
"Disconnecting the Inverter from Voltage Sources"
(page57).
2. Close all unused DC inputs to seal the inverter (see Section 6.4.4 "Connecting the PV Array
(DC)" (page39)).
3. Ensure that all DC connectors are securely in place.
DANGER!
Danger to life due to electric shock.
If the inverter is operated without the lower enclosure lid, the DC connectors can be
disconnected while under load, which may cause arcing.
• Insert the ESS only when the lower enclosure lid is closed.
• Only operate the inverter with the lower enclosure lid closed. This will ensure that the
DC connectors cannot be readily removed.
4. Attach the lower enclosure lid to the enclosure and
fasten it using the six screws. Use an Allen key
(AF 3) to tighten the screws in the order shown on
the right (torque 2 Nm).
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SMA Solar Technology AG Opening and Closing
5. If an external DC switch-disconnector is in use, disconnect it.
6. If an ESS is used, check it for wear (see Section 9.3 "Checking the Electronic Solar Switch for
Wear" (page62)), and plug it in firmly.
NOTICE!
The ESS can be damaged if it is not connected correctly.
• Plug the ESS in securely.
The ESS handle must be flush with the
enclosure.
• Check that the ESS is securely in place.
7. If a multi-function relay is connected, switch on the supply voltage to the relay.
8. Switch the miniature circuit-breaker on.
9. Check that the display and the LEDs are indicating
a normal operating state
(see Section 7 "Commissioning" (page52)).
☑ The inverter is now closed and in operation.
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Maintenance and Cleaning SMA Solar Technology AG
9 Maintenance and Cleaning
9.1 Cleaning the Inverter
If the inverter is soiled, clean the enclosure lid, the display and the LEDs with clear water and a cloth
only.
9.2 Checking Heat Dissipation
If the inverter regularly reduces its power output due to excessive heat (temperature symbol on the
display lights up), this may be for one of the following reasons:
• The cooling fins on the rear side of the enclosure are clogged.
– Clean the cooling fins using a soft brush.
• The air ducts at the top are clogged.
– Clean the air ducts using a soft brush.
9.3 Checking the Electronic Solar Switch for Wear
Check the ESS for wear before plugging it in.
Result Measure
☑ T he m etal t ong ues ins ide th e pl ug a re
not damaged or discoloured.
1. Insert the handle of the ESS securely into the
socket at the bottom of the enclosure.
2. Recommission the inverter (see Section 7
"Commissioning" (page52)).
☑ The metal tongues inside the plug
have a brown discolouration or are
burned out.
62 SB25-30TLST-21-IA-en-13 Installation Manual
The ESS can no longer safely disconnect the DC side.
1. Replace the ESS handle before attaching it again.
Order the new ESS handle through the
SMA Service Line (see Section 15 "Contact"
(page92)).
2. After replacing the ESS, commission the inverter
again (see Section 7 "Commissioning" (page52)).
Page 63
SMA Solar Technology AG Slot for SD Card
10 Slot for SD Card
The SD card is used to import files if you need to perform a firmware update after consulting the
SMA Service Line.
SMA Solar Technology AG will send you a file with the firmware update by e-mail or on an SD card,
or will make the file available in the download area at www.SMA.de/en.
For a description of the firmware update, see the download area at www.SMA.de/en.
Properties of the SD card
Use an SD card that is FAT16 or FAT32 formatted and has a maximum storage capacity
of 2 GB.
Use the SD card exclusively for this inverter. Do not save any multimedia files or other
unsuitable files on the SD card.
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Troubleshooting SMA Solar Technology AG
kVAr
kVArh
kWh
MVArh
MWh
kW
kWh
11 Troubleshooting
11.1 LED Signals
Item Description Status Explanation
A Green LED Lit Operation
Flashing Grid connection conditions are not yet
met.
B Red LED Lit Error
C Blue LED Lit Bluetooth communication is activated.
Flashing The inverter has been identified via
Sunny Explorer by setting the "Find
device" parameter.
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SMA Solar Technology AG Troubleshooting
11.2 Event Messages
No display in the event of insufficient DC voltage
It is only possible to take measurements and display messages when there is sufficient
DC voltage.
During an update, the relevant display message is shown in the text line of the display.
Message Description
Avvio Autotest Only relevant for an installation in Italy: tapping on the
display starts the self-test in accordance with
Enel-GUIDA (see Section 7.3 "Self-Test in Accordance
with CEI 0-21 for Plants ≤ 6 kW" (page54)).
Inst. code valid The SMA Grid Guard code entered is valid.
The configured country data set is now unlocked and
can be changed.
If it is a Grid Guard-protected country data set, the
unlocking is valid for a maximum of 10 feed-in hours.
No new update SDcard There is no update file relevant for this inverter on the
SD card or the available update has already been
carried out.
Grid param.unchanged The selected switch setting is not programmed or
there is no country data set available on the SD card.
Parameters set successfully A new country data set has been configured.
SD card is read The inverter is currently reading the SD card.
Set parameter The inverter is setting the configured parameters.
Update completed The inverter has successfully completed the update.
Update Bluetooth The inverter is updating the Bluetooth component.
Update main CPU The inverter is updating the inverter component.
Update communication The inverter is updating the communication
component.
Update RS485I module The inverter is updating the communication interface.
Upd. language table The inverter is updating the language table.
Update file OK The update file found is valid.
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Troubleshooting SMA Solar Technology AG
11.3 Error Messages
No display in the event of insufficient DC voltage
It is only possible to take measurements and display messages when there is sufficient
DC voltage.
The text line on the display shows the relevant display messages whenever an error occurs. The event
numbers for the displayed error messages appear above the text line. If the error persists for a
prolonged period, the red LED lights up and the fault indicator is activated (if connected).
In addition, depending on the type of disturbance, the
"spanner" or "telephone receiver" symbol on the display
light up.
• Spanner: signifies a disturbance that can be
remedied on site.
• Telephone receiver: signifies a device disturbance.
Contact the SMA Service Line.
Event no. Message Cause and corrective measures
101 to
103
Grid fault The mains voltage has exceeded the permissible range. This
error can have the following causes:
• The mains voltage at the termination point of the inverter is
too high.
• The grid impedance at the termination point of the inverter
is too high.
The inverter disconnects itself from the electricity grid for safety
reasons.
Corrective measures:
• Check the mains voltage and grid connection on the
inverter.
If the mai ns vo ltage i s ou tsi de the permissible range due to
local grid conditions, ask your network operator if the
voltage can be adjusted at the feed-in point or if it would
be acceptable to change the monitored operating limits.
If the mains voltage is within the tolerance range, yet this
error is still displayed, contact the SMA Service Line.
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Event no. Message Cause and corrective measures
202 to
205
Grid fault The mains voltage has fallen below the permissible range. This
error can have the following causes:
• Electricity grid disconnected
• AC cable damaged
• The mains voltage at the termination point of the inverter is
too low.
The inverter disconnects itself from the electricity grid for safety
reasons.
Corrective measures:
• Check whether the miniature circuit-breaker has tripped.
• Check the mains voltage and grid connection on the
inverter.
If the mai ns vo ltage i s ou tsi de the permissible range due to
local grid conditions, ask your network operator if the
voltage can be adjusted at the feed-in point or if it would
be acceptable to change the monitored operating limits.
If the mains voltage is within the tolerance range, yet this
error is still displayed, contact the SMA Service Line.
301 Grid fault The 10-minute-average mains voltage is no longer within the
permissible range.
This can be caused by one of the following:
• The mains voltage at the termination point of the inverter is
too high.
• The grid impedance at the termination point of the inverter
is too high.
The inverter disconnects to assure compliance with the power
quality of the electricity grid.
Corrective measures:
• Check the mains voltage at the termination point of the
inverter:
If, due to local grid conditions, the mains voltage exceeds
the configured threshold, ask the network operator
whether the voltage can be adjusted at the feed-in point,
or whether it would be acceptable to modify the threshold
for power quality monitoring.
If the mains voltage is permanently within the tolerance
range and this error is still displayed, contact the
SMA Service Line.
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Event no. Message Cause and corrective measures
401 to
404
Grid fault The inverter is no longer in grid-parallel operation and has
stopped feed-in for safety reasons.
Corrective measures:
• Check the grid connection for strong, short-term frequency
variations.
If there are frequent fluctuations and this error occurs as a
re sul t, a sk y our net wor k op era tor if i t wo uld be a cce pta ble
to change the operating parameters.
Discuss the proposed parameters with the
SMA Service Line.
501 Grid fault The mains frequency is not within the permissible range. The
inverter disconnects itself from the electricity grid for safety
reasons.
Corrective measures:
• If possible, check the mains frequency and observe how
often major fluctuations occur.
If there are frequent fluctuations and this error occurs as a
re sul t, a sk y our net wor k op era tor if i t wo uld be a cce pta ble
to change the operating parameters.
Discuss the proposed parameters with the
SMA Service Line.
601 Grid fault The internal monitoring function of the inverter has detected an
excessively high proportion of direct current in the grid current.
The inverter disconnects from the electricity grid.
Corrective measures:
• Check the grid connection for direct current.
• If this event occurs often, check with the network operator
whether it is possible to raise the threshold for monitoring.
701 Frq. not permitted The mains frequency is outside the permissible range. The
inverter disconnects from the electricity grid for safety reasons.
Corrective measures:
• If possible, check the mains frequency and observe how
often major fluctuations occur.
If there are frequent fluctuations and this error occurs as a
re sul t, a sk y our net wor k op era tor if i t wo uld be a cce pta ble
to change the operating parameters.
Discuss the proposed parameters with the
SMA Service Line.
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Event no. Message Cause and corrective measures
801 Waiting for grid
voltage
Grid failure
Check fuse
There is no mains voltage at the AC output of the inverter.
Corrective measures:
• Check the fuse and replace it if necessary.
• Check AC installation.
• Check whether there is a general power failure.
901 PE conn. missing The PE connection is missing. Half of the mains voltage may be
Check connection
present on an unearthed enclosure. The inverter will not connect
to the electricity grid.
Corrective measures:
• Check AC installation.
• Connect the PE cable to the AC terminal
(see Section 6.3.2 "Connecting the Inverter to the
Electricity Mains (AC)" (page32)).
1001 L / N swapped L and N have been connected the wrong way round.
Check connection
The inverter will not connect to the electricity grid.
Corrective measures:
• Correct the connection (see Section 6.3.2 "Connecting the
Inverter to the Electricity Mains (AC)" (page32)).
1101 Installation fault A second phase is connected to N.
Check connection
Corrective measures:
• Correct the connection, (see Section 6.3.2 "Connecting
the Inverter to the Electricity Mains (AC)" (page32)).
3301 to
3303
Unstable operation There is not enough power at the DC input of the inverter for
stable operation. This may be caused by snow on the
PV modules or insufficient sunlight. The inverter interrupts feed-in
operation.
Corrective measures:
• Wait until irradiation is higher.
• If this event recurs at medium irradiation, check the PV
plant design and make sure the PV array is wired properly.
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Troubleshooting SMA Solar Technology AG
Event no. Message Cause and corrective measures
3401 to
3402
DC overvoltage The DC input voltage connected to the inverter is too high.
Disconnect
generator
The inverter interrupts feed-in operation.
Corrective measures:
• Immediately disconnect the inverter from the
PV array (see Section 8.2 "Disconnecting the
Inverter from Voltage Sources" (page57)).
Otherwise, the inverter could be destroyed.
• Check that the DC voltage of the strings is in compliance
with the input voltage range of the inverter before
reconnecting the inverter to the PV array.
• If the voltage is within the permissible input voltage range,
the inverter may be defective. Contact the
SMA Service Line.
3501 Insulation resist. The inverter has detected an earth fault in the PV array and does
Check generator
not connect to the electricity grid for safety reasons. Damaged
insulation can cause electric shock.
Corrective measures:
• Check strings for earth faults (see Section 11.5 "Checking
the PV Array for Earth Faults" (page76)).
• The installer of the PV array must remedy any earth faults
before the affected string is reconnected.
3601 High discharge
curr.
Check generator
The leakage current from the inverter and the PV array is too
high.
This can be caused by a sudden earth fault, a residual current or
a device malfunction.
The inverter interrupts feed-in operation immediately after
exceeding the specified threshold and then automatically
reconnects to the electricity grid once the fault has been
remedied.
Corrective measures:
• Check strings for earth faults (see Section 11.5 "Checking
the PV Array for Earth Faults" (page76)).
• The installer of the PV array must remedy the earth faults
before you re-connect the affected string.
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Event no. Message Cause and corrective measures
3701 Resid.curr.too.high The inverter has detected residual current and interrupts feed-in
Check generator
operation.
Corrective measures:
• Check strings for earth faults (see Section 11.5 "Checking
the PV Array for Earth Faults" (page76)).
• The installer of the PV array must remedy the earth faults
before you re-connect the affected string.
3801 to
3802
DC overcurrent The inverter switches off due to an overcurrent on the DC side.
Check generator
Corrective measures:
If this event occurs frequently:
• Check the design and the circuitry of the PV array.
3901 to
3902
Waiting for DC
start conditions
Start cond. not met
The input power or voltage of the PV modules is not yet sufficient
for feeding into the electricity grid.
Corrective measures:
• Wait until irradiation is higher.
• If this event recurs at medium irradiation levels, check the
PV plant design and the correct circuitry of the PV array.
6001 to
6438
Self diagnosis Internal device fault. The inverter interrupts feed-in operation.
Interference device
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
6501 to
6502
Self diagnosis The inverter interrupts feed-in operation due to interior
Overtemperature
overheating.
Corrective measures:
• Ensure sufficient ventilation.
• Check the heat dissipation (see Section 9.2 "Checking
Heat Dissipation" (page62)).
6603 to
6604
Self diagnosis The inverter has detected an internal overload and interrupts
Overload
feed-in operation.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
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Event no. Message Cause and corrective measures
6701 to
6702
Comm. disturbed A fault has occurred in the internal communication of the
inverter. The inverter continues feeding into the electricity grid.
Corrective measures:
If this event occurs frequently:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
6801 to
6802
Self diagnosis Inverter input A is defective.
Input A defective
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
6901 to
6902
Self diagnosis Inverter input B is defective.
Input B defective
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
7001 to
7002
Sensor fault A temperature sensor in the inverter is faulty. The inverter
interrupts feed-in operation.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
7008 Disturbance sensor
display
temperature
The ambient-temperature sensor is faulty. The display does not
switch off at temperatures below ‒25°C and may be
irreparably damaged as a result. The inverter continues feeding
into the electricity grid.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
7101 SD card defective The SD card is not formatted correctly or is defective. Update
failed. The inverter continues feeding into the electricity grid.
Corrective measures:
• Re-format the SD card.
• Re-save the files to the SD card.
7102 Parameter file not
found or defective
The parameter file was not found or is defective. Update failed.
The inverter continues feeding into the electricity grid.
Corrective measures:
• Copy the parameter file into the directory
SD card drive:\PARASET.
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SMA Solar Technology AG Troubleshooting
Event no. Message Cause and corrective measures
7105 Param. setting
failed
Operating parameters cannot be set via the SD card.
The inverter continues feeding into the electricity grid.
Corrective measures:
• Check the parameters for valid values.
• Ensure change rights via SMA Grid Guard code.
7106 Update file defect. The update file is defective. Update failed. The inverter continues
feeding into the electricity grid.
Corrective measures:
• Re-format the SD card.
• Re-save the files to the SD card.
7110 No update file
found
No new update file found on the SD card. Update failed.
The inverter continues feeding into the electricity grid.
Corrective measures:
• Copy the update file into the
SD card drive :\UPDATE directory.
7201 7202
Data stor. not poss. Internal device fault, the inverter continues feeding into the
electricity grid.
Corrective measures:
• If this fault occurs often, contact the SMA Service Line
(see Section 15 "Contact" (page92)).
7303 Update main CPU
failed
Internal device fault. The inverter continues feeding into the
electricity grid. In very rare cases, the firmware is damaged and
the inverter interrupts feed-in.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
7305 Update RS485I
module failed
7307 Update Bluetooth
failed
7311 Update language
table failed
Internal device fault, the inverter continues feeding into the
electricity grid.
Corrective measures:
•Re-try update.
• If this fault occurs again, contact the SMA Service Line
(see Section 15 "Contact" (page92)).
7401 Varistor defective At least one of the thermally monitored varistors is defective.
The inverter is no longer protected against overvoltage. The
inverter continues feeding into the electricity grid.
Corrective measures:
• Check the varistors (see Section 11.6 "Checking the
Function of the Varistors" (page78)).
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Troubleshooting SMA Solar Technology AG
Event no. Message Cause and corrective measures
7508 External fan fault The fan is clogged or defective. The inverter may reduce its
Replace fan
power output due to overheating. The inverter continues feeding
into the electricity grid.
Corrective measures:
•Clean the fan
• Replace the fan
7701 to
7703
Self diagnosis Internal device fault. The inverter disconnects from the electricity
Interference device
grid.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
8001 Derating occurred The power supplied by the inverter has been reduced to below
nominal power for more than 10 minutes due to overheating.
Corrective measures:
If this event occurs frequently:
• Ensure sufficient ventilation.
• Check the heat dissipation (see Section 9.2 "Checking
Heat Dissipation" (page62)).
8101 to
8104
Comm. disturbed A fault has occurred in the internal communication of the
inverter. The inverter continues feeding into the electricity grid.
Corrective measures:
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
8801 to
8803
No display The display is blank. The inverter continues feeding into the
electricity grid. This error can have the following causes:
• The ambient temperature is so low that the display
disconnects to protect itself.
• The inverter cannot identify the display type.
• No display is connected or the connection is defective.
Corrective measures:
• Wait until the temperature has risen above -25°C.
• Contact the SMA Service Line (see Section 15 "Contact"
(page92)).
9002 Inst. code invalid The SMA Grid Guard code entered (personal installer
password) is not valid.
Corrective measures:
• Enter a valid SMA Grid Guard code.
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Event no. Message Cause and corrective measures
9003 Grid param. locked The current country data set is locked.
Corrective measures:
• Enter a valid SMA Grid Guard code for changing the
country data set.
9005 Changing grid
param. not
possible
Ensure DC supply
This error can have the following causes:
• The selected rota ry switc h settin g for t he langu age sett ings
is not programmed.
• The parameters to be changed are protected.
• DC voltage at the DC input is not sufficient to run the main
CPU.
Corrective measures:
• Check the rotary switch setting (see Section 6.5.1
"Checking the Country Standard" (page45)).
• Enter the SMA Grid Guard code.
• Ensure sufficient DC voltage is available (green LED is
glowing or flashing).
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Troubleshooting SMA Solar Technology AG
11.4 DC Current after AC-Side Disconnection
In spite of the AC side having been disconnected, a current is still detectable in the DC cables with a
current clamp. This is not an error but normal behaviour of the inverter when in operation.
• Always disconnect the inverter on the AC and DC sides (see Section 8.2 "Disconnecting the
Inverter from Voltage Sources" (page57)).
11.5 Checking the PV Array for Earth Faults
If the red LED is g low ing and the inv ert er displa ys e ven t nu mbe r "3501", "3601" or "3701", then there
is probably an earth fault in the PV array.
Check the strings for earth faults as described below:
1. Disconnect the inverter and open it (see Section 8.2 "Disconnecting the Inverter from Voltage
Sources" (page57)).
Notice!
Excessive voltages can destroy the multimeter
• Only use multimeters with a DC input voltage range up to at least 1,000 V.
2. Measure the voltages between the positive pole of
each string and the earth potential (PE).
3. Measure the voltages between the negative pole of
each string and the earth potential (PE).
4. Measure the voltages between the positive and
negative poles of each string.
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☑ An earth fault is present if the measured voltages are stable and the sum of the voltages of
the positive pole against earth potential and the negative pole against earth potential of a
string is approximately equal to the voltage between the positive and negative poles.
Result Measure
☑ You have detected an earth fault. • The installer of the PV array must remedy the
earth fault in the affected string before you
reconnect the string to the inverter. You can
determine the location of the earth fault using
the illustration below.
• Do not reconnect the faulty string.
• Recommission the inverter (see Section 7.1
"Commissioning the Inverter" (page52)).
☑You have not detected an earth
fault.
On e of th e th erm ally m oni tor ed varist ors is pro bab ly
defective.
• Check the function of the varistors (see Section
11.6 "Checking the Function of the Varistors"
(page78)).
Location of the earth fault
The approximate position of the earth fault can be determined from the ratio of the measured
voltages between the positive pole against earth potential (PE) and the negative pole against
earth potential (PE).
Example:
In this case, the earth fault is between the second and third PV module.
☑ The earth fault check is now complete.
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Troubleshooting SMA Solar Technology AG
11.6 Checking the Function of the Varistors
If the inverter displays the event number "7401", then one of the varistors is probably defective.
Varistors are wear parts. Their functional efficiency diminishes with age or following repeated
responses as a result of overvoltages. It is therefore possible that one of the thermally monitored
varistors has lost its protective function.
NOTICE!
Destruction of the inverter due to overvoltage
If var ist ors are mis sin g or def ective , th e inver ter is no lo nge r protected against overvoltages.
• In PV plants with a high risk of overvoltages, never operate the inverter without
varistors.
• Replacement varistors should be fitted as soon as possible.
Check the varistors as described below:
1. Disconnect the inverter and open it (see Section 8.2 "Disconnecting the Inverter from Voltage
Sources" (page57)).
DANGER!
Danger to life due to high voltages in the inverter
The capacitors in the inverter may be charged with very high voltages.
• Wait five minutes before opening the upper enclosure lid, in order to allow time for
the capacitors to discharge.
2. Undo the screws of the upper enclosure lid. Use an
Allen key (AF 4) to do this.
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SMA Solar Technology AG Troubleshooting
3. Pull the upper enclosure lid forwards to remove it.
NOTICE!
Electrostatic discharge can damage the inverter
Components on the inside of the inverter may be irreparably damaged due to electrostatic
discharge.
• Earth yourself before touching any components.
4. Remove all varistors.
If you have not received an insertion tool for
operating the terminals with your replacement
varistors, contact SMA Solar Technology AG.
5. Use a multimeter to check each varistor for a
conductive connection between terminals 2 and 3.
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Troubleshooting SMA Solar Technology AG
Result Measure
☑There is a conductive connection. The varistor is functional. There must be a different error
in the inverter.
• Contact the SMA Service Line (see Section 15
"Contact" (page92)).
☑There is no conductive
connection.
The respective varistor is defective and must be replaced.
Varistor failure is generally due to influences that affect
all varistors in a similar manner (temperature, age,
induced overvoltage). SMA Solar Technology AG
recommends replacing all varistors.
The varistors are specially manufactured for use in the
inverter and are not commercially available. You must
order replacement varistors directly from
SMA Solar Technology AG (see Section 14 "Accessories"
(page91)). Only use original varistors that are sold by
SMA Solar Technology AG.
• For replacing the varistors, proceed to step 6.
6. Insert an insertion tool into the openings of the
terminal contacts.
7. Insert new varistors into the slots (as shown in the
diagram on the right).
Make sure that the labelling points to the left, i.e.
towards the insertion tool.
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8. Close and earth the inverter:
– Place one conical spring washer over each
screw. The grooved side of the conical spring
washer must face the screw head.
– Attach the upper enclosure lid to the enclosure
an d tighten the cen tre lo wer scr ew h alfwa y. U se
an Allen key (AF 4) to do this.
– Secure the upper enclosure lid in the sequence
1 to 5 (torque: 6 Nm). Use an Allen key (AF 4)
to do this.
☑ The teeth of the co nical spring w asher pr ess into
the upper enclosure lid. The lid is thus earthed.
9. Close the lower enclosure lid and commission the inverter again (see Section 8.3 "Closing the
Inverter" (page60)).
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Decommissioning SMA Solar Technology AG
12 Decommissioning
12.1 Dismantling the Inverter
1. Disconnect the inverter and open it (see Section 8.2 "Disconnecting the Inverter from Voltage
Sources" (page57)).
2. Remove all communication cables from the inverter.
CAUTION!
Risk of burns due to hot enclosure parts
• Wait 30 minutes for the enclosure to cool down before disassembling.
3. If necessary, remove the padlock.
4. Remove the inverter by lifting it upwards off the wall mounting bracket.
12.2 Replacing the Enclosure Lid
In the event of a fault, your inverter may need to be replaced. If this is the case, you will receive a
replacement device fitted with an upper and lower transport lid.
Prior to returning your inverter to SMA Solar Technology AG, you must replace the upper and lower
enclosure lids of your inverter with the corresponding transport lids:
1. Disassemble the inverter (see Section 12.1 "Dismantling the Inverter" (page82)).
DANGER!
Danger to life due to high voltages in the inverter
The capacitors in the inverter may be charged with very high voltages.
• Wait five minutes before opening the enclosure cover, in order to allow time for the
capacitors to discharge.
2. Undo the screws of the upper enclosure lid. Use an
Allen key (AF 4) to do this.
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SMA Solar Technology AG Decommissioning
3. Pull the upper enclosure lid forwards to remove it.
4. Remove the two transport lids from the replacement device in the same manner.
5. Close and earth the replacement device:
– Place one conical spring washer over each
screw. The grooved side of the conical spring
washer must face the screw head.
– Attach the upper enclosure lid to the enclosure
an d tighten the cen tre lo wer scr ew h alfwa y. U se
an Allen key (AF 4) to do this.
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Decommissioning SMA Solar Technology AG
– Fasten the upper enclosure lid in the sequence
1 to 5 (torque: 6 Nm). Use an Allen key (AF 4)
to do this.
☑ The teeth of the co nical spring w asher pr ess into
the upper enclosure lid. The lid is thus earthed.
6. Mount the replacement device (see Section 5 "Mounting" (page23)).
7. Connect the replacement device (see Section 6 "Electrical Connection" (page28)).
8. Commission the replacement device (see Section 7 "Commissioning" (page52)).
9. Now mount the two transport lids of the replacement device onto the defective inverter.
☑ You can now send the defective inverter back to SMA Solar Technology AG.
12.3 Packing the Inverter
• Package the inverter in the original packaging if available.
• If the original packaging is not available, use a cardboard box suitable for the weight and size
of the inverter.
12.4 Storing the Inverter
Store the inverter in a dry place where ambient temperatures are always between -25°C and +60°C.
12.5 Disposing of the Inverter
Dispose of the inverter at the end of its service life in accordance with the electronic waste disposal
regulations that currently apply at the installation site.
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SMA Solar Technology AG Technical Data
13 Technical Data
13.1 DC/AC
13.1.1 Sunny Boy 2500TL Single Tracker
DC Input
Maximum DC power at cos φ = 1 2,650 W
Maximum input voltage* 750 V
MPP voltage range 180 V to 500 V
Rated input voltage 400 V
Minimum input voltage 125 V
Initial input voltage 150 V
Maximum input current 15 A
Maximum input current per string 15 A
Number of independent MPP inputs 1
Strings per MPP input 2
* The maximum open-circuit voltage that can occur at -10°C cell temperature must not exceed the maximum input voltage.
AC Output
Rated power at 230 V, 50 Hz 2,500 W
Maximum apparent AC power cos φ = 1 2,500 VA
Rated grid voltage 230 V
AC nominal voltage 220 V / 230 V / 240 V
AC voltage range* 180 V to 280 V
Nominal AC current at 220 V 11.4 A
Nominal AC current at 230 V 10.9 A
Nominal AC current at 240 V 10.4 A
Maximum output current 12.4 A
Maximum output current in case of faults 12.4 A
Total harmonic factor of output current at
AC total harmonic factor < 2%,
AC power > 0.5 nominal AC power
Rated mains frequency 50 Hz
AC mains frequency* 50 Hz/60 Hz
Operating range at AC mains frequency 50 Hz 45 Hz to 55 Hz
Operating range at AC mains frequency 60 Hz 55 Hz to 65 Hz
Displacement power factor, adjustable 0.8
Installation Manual SB25-30TLST-21-IA-en-13 85
overexcited
≤ 4%
to 1 to 0.8
underexcited
Page 86
Technical Data SMA Solar Technology AG
Feed-in phases 1
Connection phases 1
Overvoltage category as per IEC 60664-1 III
* Depending on country setting
Efficiency
Maximum efficiency, η
max
European weighted efficiency, η
EU
97.0%
95.8%
13.1.2 Sunny Boy 3000TL Single Tracker
DC Input
Maximum DC power at cos φ = 1 3,200 W
Maximum input voltage* 750 V
MPP voltage range 213 V to 500 V
Rated input voltage 400 V
Minimum input voltage 125 V
Initial input voltage 150 V
Maximum input current 15 A
Maximum input current per string 15 A
Number of independent MPP inputs 1
Strings per MPP input 2
* The maximum open-circuit voltage that can occur at -10°C cell temperature must not exceed the maximum input voltage.
AC Output
Rated power at 230 V, 50 Hz 3,000 W
Maximum apparent AC power cos φ = 1 3,000 VA
Rated grid voltage 230 V
AC nominal voltage 220 V / 230 V / 240 V
AC voltage range* 180 V to 280 V
Nominal AC current at 220 V 13.6 A
Nominal AC current at 230 V 13.1 A
Nominal AC current at 240 V 12.5 A
Maximum output current 14.6 A
Maximum output current in case of faults 14.6 A
Total harmonic factor of output current at
AC total harmonic factor < 2%,
AC power > 0.5 nominal AC power
Rated mains frequency 50 Hz
≤ 4%
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SMA Solar Technology AG Technical Data
AC mains frequency* 50 Hz/60 Hz
Operating range at AC mains frequency 50 Hz 45 Hz to 55 Hz
Operating range at AC mains frequency 60 Hz 55 Hz to 65 Hz
Displacement power factor, adjustable 0.8
overexcited
to 1 to 0.8
underexcited
Feed-in phases 1
Connection phases 1
Overvoltage category as per IEC 60664-1 III
* Depending on country setting
Efficiency
Maximum efficiency, η
max
European weighted efficiency, η
EU
97.0%
96.1%
13.2 General Data
Width x height x depth, without
Electronic Solar Switch
Width x height x depth with
Electronic Solar Switch
Weight 23 kg
Length x width x height of packaging 597 mm x 617 mm x 266 mm
Transport weight 26 kg
Climatic category as per IEC 60721-2-1 4K4H
Environment category Outdoors
Pollution degree outside the enclosure 3
Pollution degree inside the enclosure 2
Operating temperature range − 25°C to +60°C
Maximum permissible value for relative humidity,
non-condensing
Maximum operating altitude above MSL 2,000 m
Noise emission (typical) ≤ 25 dB(A)
Power loss in night mode < 1 W
Topology transformerless
Cooling concept convection
Degree of protection for electronics according to
IEC 60529
Connection area degree of protection according
to IEC 60529
Protection class according to IEC 62103) I
490 mm x 488 mm x 185 mm
490mm x 519mm x 185mm
100%
IP65
IP54
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Technical Data SMA Solar Technology AG
Approvals, as per 03/2013* AS 4777, CEI 0-21, C10/11, DIN EN 62109-1,
EN 50438, G59/2, G83/1-1,
IEC 61727 (PEA), IEC 62109-2,
NEN EN 50438, NRS 97-1-2, PPC, PPDS,
RD 1699:2011, RD661/2007,
UTE C15-712-1, VDE 0126-1-1,
VDE-AR-N 4105
*EN 50438: Does not apply to all country standard deviations of EN 50438
IEC 62109-2: In order to meet the requirements of this standard, the inverter must either be equipped with a multi-function relay
used as a fault indication relay or there must be a connection to Sunny Portal with the fault alarm via e-mail activated.
RD 1699:2011 and RD 661/2007: Contact the SMA Service Line for restrictions in specific regions.
NRS 97-1-2: This standard stipulates that a special label be attached to the AC d istribu tion b oard t o draw attention t o the AC-side
disconnection of the inverter in the case of grid failure (for more details, see NRS 97-1-2, Sec. 4.2.7.1 and 4.2.7.2)
13.3 Protective Devices
DC reverse polarity protection short-circuit diode
Input-side load disconnect unit* Electronic Solar Switch
DC overvoltage protection thermally monitored varistors
AC short-circuit current capability current control
Grid monitoring SMA Grid Guard 3
Maximum permissible fuse protection 25 A
Earth fault monitoring insulation monitoring: R
All-pole sensitive residual-current monitoring unit available
*optional
> 625 k Ω
iso
13.4 Climatic Conditions
As per IEC 60721-3-4, Installation type C, Class 4K4H
Extended temperature range − 25°C to +60°C
Extended humidity range 0% to 100%
Extended air pressure range 79.5 kPa to 106 kPa
As per IEC 60721-3-2, transport type E, Class 2K3
Temperature range − 25°C to +70°C
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SMA Solar Technology AG Technical Data
13.5 Features
DC connection SUNCLIX DC connector
AC connection spring clamp terminal
Display LC graphic display
Bluetooth as standard
RS485, galvanically isolated optional
Multi-function relay optional
Electronic Solar Switch optional
13.6 Electronic Solar Switch
Electrical endurance in the event of short circuit,
at nominal current 35 A
Maximum switching current 35 A
Maximum switching voltage 800 V
Maximum PV power 12 kW
Degree of protection when plugged in IP65
Degree of protection when unplugged IP21
Fuses for Electronic Solar Switch F200, 600V/4A, fast and
at least 50 switching processes
F201, 600V/4 A, fast
(both soldered, not replaceable)
13.7 Torques
Upper enclosure lid screws 6.0 Nm
Lower enclosure lid screws 2.0 Nm
Additional earth terminal 6.0 Nm
SUNCLIX swivel nut 2.0 Nm
RS485 interface fastening screw 1.5 Nm
Multi-function relay fastening screw 1.5 Nm
13.8 Grid Configuration
TN-C suitable
TN-S suitable
TN-C-S suitable
TT, if V
< 15 V suitable
N_PE
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Technical Data SMA Solar Technology AG
13.9 Data Storage Capacity
Daily energy yield performance 63 days
Daily yields 30 years
Event messages for users 250 events
Event messages for installers 250 events
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SMA Solar Technology AG Accessories
14 Accessories
You will find the corresponding accessories and spare parts for your product in the following
overview. If required, you can order them from SMA Solar Technology AG or your specialised
dealer.
Description Brief description SMA order number
Replacement varistors Set of thermally monitored varistors MSWR-TV9
Electronic Solar Switch ESS handle (spare) ESS-HANDLE*
Multi-function relay Multi-function relay for retrofitting in
PV inverters
RS485 retrofit kit RS485 interface DM-485CB-10
Speedwire/Webconnect
retrofit kit
SMA Power Control
Module
Speedwire/Webconnect Data Module for
retrofitting in the PV Inverter
SMA Power Control Modules for retrofitting
in PV inverters
SUNCLIX DC connector Field plug for conductor cross-sections of
2.5mm² to 6mm²
Additional fan kit Fan for installation in the inverter FANKIT01-10
* When ordering a new ESS, always indicate the device type and serial number of the inverter.
MFR01-10
SWDM-10
PWCMOD-10
SUNCLIX-FC6-SET
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Contact SMA Solar Technology AG
15 Contact
If you have technical problems concerning our products, please contact the SMA Service Line.
We require the following information in order to provide you with the necessary assistance:
•Inverter device type
• Inverter serial number
• Type and number of connected PV modules
• Four-digit event number and display message of the inverter
• Optional equipment, e.g. communication products
• Use of a multi-function relay
• Mounting location
Australia SMA Australia Pty Ltd.
Sydney
Belgien/
Belgique/
België
Česko SMA Central & Eastern Europe s.r.o.
Danmark Se Deutschland (Tyskland)
Deutschland SMA Solar Technology AG
España
SMA Benelux bvba/sprl
Mechelen
Praha
Niestetal
SMA Ibérica Tecnología Solar, S.L.U.
Barcelona
Toll free for
Australia:
International: +61 2 9491 4200
+32 15 28 67 30
+420 235 010 417
Medium Power Solutions
Wechselrichter:
Kommunikation:
SMS mit „Rückruf“:
Hybrid Energy Solutions
Sunny Island: +49 561 9522-399
Power Plant Solutions
Sunny Central: +49 561 9522-299
+34 900 14 22 22
1800 SMA AUS
(1800 762 287)
+49 561 9522-1499
+49 561 9522-2499
+49 176 888 222 44
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SMA Solar Technology AG Contact
France SMA France S.A.S.
Lyon
India SMA Solar India Pvt. Ltd.
Mumbai
Italia SMA Italia S.r.l.
Milano
Luxemburg/
Luxembourg
Magyarország
Siehe Belgien
Voir Belgien (Belgique)
lásd Česko (Csehország)
Nederland zie Belgien (België)
Österreich Siehe Deutschland
Polska Patrz Česko (Czechy)
Portugal SMA Solar Technology Portugal,
Unipessoal Lda
Lisboa
România Vezi Česko (Cehia)
Schweiz Siehe Deutschland
Slovensko pozri Česko (Česká republika)
South Africa SMA Solar Technology
South Africa Pty Ltd.
Centurion (Pretoria)
United
Kingdom
SMA Solar UK Ltd.
Milton Keynes
Ελλάδα SMA Hellas AE
Αθήνα
България Виж Ελλάδα (Гърция)
SMA Solar (Thailand) Co., Ltd. +66 2 670 6999
Medium Power Solutions
Onduleurs :
Communication :
+33 (0)4 72 09 04 40
+33 (0)4 72 09 04 41
Hybrid Energy Solutions
Sunny Island : +33 (0)4 72 09 04 42
Power Plant Solutions
Sunny Central : +33 (0)4 72 09 04 43
+91 022 61713844
+39 02 89347 299
+351 212377860
Toll free
+27 12 643 1785
worldwide:
+44 1908 304899
+30 210 9856 666
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Contact SMA Solar Technology AG
대한민국 SMA Technology Korea Co., Ltd.서울+82 2 508 8599
中国 SMA Beijing Commercial Company
Ltd.
北京
SMA Japan K.K. +81-(0)3-3451-9530
+971 2 698 5080 SMA Middle East LLC
+86 010 56701361
أبو ظبي
Other
countries
International SMA Service Line
Niestetal
Toll free worldwide: 00800 SMA SERVICE
الإمارات
العربية
المتحدة
(+800 762 7378423)
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SMA Solar Technology AG Legal Provisions
Legal Provisions
The information contained in this document is the property of SMA Solar Technology AG. Publishing its content, either partially or
in full, requires the written permission of SMA Solar Technology AG. Any internal company copying of the document for the
purposes of evaluating the product or its correct implementation is allowed and does not require permission.
SMA Manufacturer’s Warranty
The current warranty conditions come enclosed with your device. These are also available online at www.SMA-Solar.com and can
be downloaded and are available on paper from the usual sales channels if required.
Trademarks
All trademarks are recognised even if these are not marked separat ely. M issing d esign ations do no t mean that a pr oduct or bra nd
is not a registered trademark.
The Bluetooth
SMA Solar Technology AG is under licence.
QR Code
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. +49 561 9522-0
Fax +49 561 9522-100
www.SMA.de
E-Mail: info@SMA.de
© 2004 to 2013 SMA Solar Technology AG. All rights reserved
®
word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by
®
is a registered trademark of DENSO WAVE INCORPORATED.
Installation Manual SB25-30TLST-21-IA-en-13 95
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