SMA SMC 9000TL Installation

F

ront cove

r

PV Inverter

SUNNY MINI CENTRAL 9000TL / 10000TL / 11000TL
with Reactive Power Control

Installation Manual

SMC9-11TLRP-IA-en-51 | IMEN-SMCTLRP | Version 5.1

SMA Solar Technology AG Table of Contents

Table of Contents

1 Information on this Document .....................................................7

2 Safety...........................................................................................10

2.1 Intended Use............................................................................. 10

2.2 Qualifications of Skilled Persons..............................................11

2.3 Safety Precautions..................................................................... 12

3 Scope of Delivery .......................................................................13

4 Product Description.....................................................................15

4.1 Sunny Mini Central................................................................... 15

4.2 Type Label................................................................................. 17

4.3 Display and LEDs ...................................................................... 19

4.4 Electronic Solar Switch (ESS)................................................... 20

4.5 SMA Power Balancer............................................................... 21

4.6 Communication......................................................................... 23

4.7 Grid Management.................................................................... 23

4.8 Fuse Holders for String Fuses ................................................... 23

4.9 Varistors..................................................................................... 24

4.10 SMA Grid Guard......................................................................24

4.11 All-Pole Sensitive Residual-Current Monitoring Unit................ 24

5 Mounting .....................................................................................25

5.1 Selecting the Mounting Location .............................................25

5.2 Mounting the Inverter ...............................................................28

6 Electrical Connection...................................................................31

6.1 Safety during Electrical Connection......................................... 31

6.2 Overview of the Connection Area........................................... 32

6.2.1 Bottom View ....................................................................................32

6.2.2 Interior View ....................................................................................33

6.3 AC Connection.......................................................................... 34

Installation Manual SMC9-11TLRP-IA-en-51 3

Table of Contents SMA Solar Technology AG

6.3.1 Conditions for AC Connection.......................................................34

6.3.2 Connecting the Inverter to the Electricity Grid...............................35

6.3.3 Additional Earthing of the Enclosure .............................................37

6.4 DC Connection ......................................................................... 38

6.4.1 Conditions for DC Connection.......................................................38

6.4.2 Assembling the DC Connectors .....................................................38

6.4.3 Connecting the PV Array................................................................41

6.5 Connecting the SMA Power Balancer..................................... 43

6.6 Installing the String Fuses ......................................................... 45

7 Configuration ..............................................................................47

7.1 Checking the Function of the SMA Power Balancer and

Setting the Operating Mode.................................................... 47

7.2 Changing the Country Data Set .............................................. 48

7.3 Setting the Country Data Set for Operation with External

Decoupling Protection .............................................................. 49

7.4 Changing the Display Language............................................. 50

8 Commissioning............................................................................51

9 Disconnecting the Inverter .........................................................53

10 Troubleshooting ..........................................................................56

10.1 LED Signals................................................................................ 56

10.2 Display Messages..................................................................... 58

10.2.1 Measurement Channels..................................................................58

10.2.2 Status Messages .............................................................................59

10.2.3 Errors, Faults, Warnings..................................................................60

10.3 Cleaning the Fans..................................................................... 66

10.4 Checking the Fans..................................................................... 68

10.5 Cleaning the Ventilation Grids.................................................70

10.6 Checking the ESS for Wear ..................................................... 71

10.7 Checking the PV Plant for Earth Faults.....................................72

10.8 Checking the Function of the Varistors..................................... 74

4 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG Table of Contents

10.9 Replacing the Varistors ............................................................. 76

10.10 Checking the Function of the String Fuses ...............................77

10.11 Replacing the String Fuses........................................................ 79

10.12 Cleaning the Inverter ................................................................79

11 Decommissioning........................................................................80

11.1 Dismounting the Inverter...........................................................80

11.2 Packing the Inverter................................................................... 81

11.3 Disposing of the Inverter........................................................... 81

12 Technical Data.............................................................................82

12.1 DC/AC...................................................................................... 82

12.1.1 Sunny Mini Central 9000TL with Reactive Power Control ...........82

12.1.2 Sunny Mini Central 10000TL with Reactive Power Control.........84

12.1.3 Sunny Mini Central 11000TL with Reactive Power Control.........86

12.2 General Data............................................................................ 88

12.3 Protective Devices ..................................................................... 89

12.4 Approvals.................................................................................. 89

12.5 Climatic Conditions................................................................... 89

12.6 Features ..................................................................................... 90

12.7 Electronic Solar Switch............................................................. 90

12.8 Torques ...................................................................................... 90

12.9 Earthing Systems....................................................................... 90

13 Accessories ..................................................................................91

14 Contact.........................................................................................92

Installation Manual SMC9-11TLRP-IA-en-51 5

Table of Contents SMA Solar Technology AG

6 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 1 Information on this Document

1 Information on this Document

Validity

This document is valid for the following device types:

• SMC 9000TLRP-10

• SMC 10000TLRP-10

• SMC 11000TLRP-10

STSatz_Zielgruppe_Fa chkräfte

Target Group

This document is intended for skilled persons. Only qualified personnel are allowed to perform the
tasks described in this manual (see section 2.2 "Qualifications of Skilled Persons", page 11).

STSatz_Hinw_Weiterführende Informati onen

Additional Information

Links to additional information can be found at www.SMA-Solar.com:

Document title Document type

Three-Phase Grid Connection Technical information

Miniature Circuit-Breaker Technical information

Module Technology Technical information

Operating Parameters Technical description

Insulation Resistance (R

PV Inverters ‒ Overview of Country Data Sets Technical description

STSatz_Hinw_Symbole

) of Non-Galvanically Isolated PV Plants Technical information

iso

Installation Manual SMC9-11TLRP-IA-en-51 7

1 Information on this Document SMA Solar Technology AG

Symbols

Symbol Explanation

Indicates a hazardous situation which, if not avoided, will result in
death or serious injury

Indicates a hazardous situation which, if not avoided, could result in
death or serious injury

Indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury

Indicates a situation which, if not avoided, could result in property
damage

Information that is important for a specific topic or goal, but is not
safety-relevant

Indicates a requirement for achieving a specific goal

Desired result

A problem that might occur

Typographies

Typography Usage Example

Bold •Display messages

• Parameter

• Connections

•Slots

• Elements to be selected

• Elements to be entered

• The inverter displays the status
Balanced.

• Select the parameter FanTest
and set it to 1.

Nomenclature

Complete designation Designation in this document

Electronic Solar Switch ESS

®

SMA Bluetooth

Wireless Technology

Sunny Mini Central Inverter, product

8 SMC9-11TLRP-IA-en-51 Installation Manual

Bluetooth

SMA Solar Technology AG 1 Information on this Document

Abbreviations

Abbreviation Designation Explanation

AC Alternating Current ‒

DC Direct Current ‒

DSP Digital Signal Processor ‒

EC European Community ‒

EEPROM Electrically Eraseable

Programmable Read-Only
Memory

LED Light-Emitting Diode ‒

MPP Maximum Power Point ‒

MSL Mean Sea Level ‒

OCU Operation Control Unit ‒

PC Personal Computer ‒

PE Protective Earth Protective conductor

PV Photovoltaics ‒

RP Reactive Power ‒

‒

Installation Manual SMC9-11TLRP-IA-en-51 9

2 Safety SMA Solar Technology AG

2Safety

2.1 Intended Use

Aufgabe_SMC-TL

The Sunny Mini Central is a transformerless PV inverter, which converts the direct current of the
PV array to grid-compliant alternating current and feeds it into the electricity grid.

Figure 1: Design of a PV plant with three Sunny Mini Central inverters

The Sunny Mini Central is suitable for indoor and outdoor use.
The Sunny Mini Central should only be operated with PV arrays (PV modules and cabling) of

protection class II. The PV modules used must be released by the module manufacturer for use with
this Sunny Mini Central.

PV modules with a high capacity to earth should only be used if their coupling capacity does not
exceed 1,400 nF.

All components must remain within their permitted operating ranges at all times.

National approval and release

The product may only be used in countries for which it is approved or released by
SMA Solar Technology AG and the network operator.

STSatz_Best Verwend_Produkt ändern

For safety reasons, it is forbidden to modify the product or install components that are not explicitly
recommended or distributed by SMA Solar Technology AG.

10 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 2 Safety

Only use the Sunny Mini Central in accordance with the information provided in the enclosed
documentation. Any other application may cause injury to persons or lead to property damage.

Mounting the Product

• Do not mount the product on flammable construction materials.

• Do not mount the product in areas where highly flammable materials are stored.

• Do not install the product in potentially explosive atmospheres.

STSatz_Best Verwend_Doku beachten und zugänglich

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 Qualifications 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 operating
electrical devices and plants

• Training in the installation and commissioning of electrical devices and plants

• Knowledge of the applicable standards and directives

• Knowledge of and compliance with this document and all safety precautions

Installation Manual SMC9-11TLRP-IA-en-51 11

2 Safety SMA Solar Technology AG

2.3 Safety Precautions

Electric Shock

SiHiw_Stromschlag durch hohe Spannungen

High voltages are present in the live components of the inverter. Touching these components can
cause fatal electric shock.

• Always disconnect the inverter from voltage sources before performing any work on it as
described in this document (see section 9).

SiHiw_nicht geerdetes PV-Modul

Touching an unearthed PV module or an array frame can cause a fatal electric shock.

• C onn ect and ear th th e PV module s, array fram e an d el ect ric all y co ndu cti ve s urf ace s so tha t th ere
is continuous conduction. Observe the applicable local regulations.

Burn Hazards

SiHiw_Verbrennungen durch Gehäuseteile

Some parts of the enclosure can become hot during operation.

• During operation, touch the inverter on the enclosure lid only.

Environmental Influences

SiHiw_ESS_Dichtigkeit

When closed and with the ESS plugged in, the inverter has the degree of protection IP65.
If the ESS is not plugged in or incorrectly plugged in during operation, moisture and dust can

penetrate the inverter. If the ESS is not correctly plugged in, this can cause contacts in the ESS to wear
or the ESS might fall out of the socket. This can result in yield loss and damage to the ESS.

• If the ESS is not plugged in, the inverter must be protected against moisture and dust.

• After performing any work on inverters, plug the ESS back in as follows:

– Do not tighten the screw inside the ESS.
– Firmly plug in the ESS until it is flush with the enclosure.
– Ensure that the gap between the ESS and the enclosure is no more than 1 mm.

Electrostatic Discharge

SiHiw_Vor Berühren erden

Touching electronic components can cause damage to or destroy the inverter through electrostatic
discharge.

• Earth yourself before touching any components.

12 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 3 Scope of Delivery

3Scope of Delivery

STSatz_Lieferumfang_In halt prüfen

Check the scope of delivery for completeness and any externally visible damage. Contact your
specialist dealer if the delivery is incomplete or damaged.

Figure 2: Components of the delivery

Position Quantity Designation

A1Sunny Mini Central

B 2 Ventilation grid

C1Wall mounting bracket

D 1 Electronic Solar Switch

E5Positive DC connector

F 5 Negative DC connector

G10Sealing plug

H1Cable gland

I1Counter nut

K 1 Clamping bracket

L2

M2

Conical spring washer

M6x16 cheese-head screw

N1 Jumper

O 2 M6x8 cheese-head screw

P1

Y cable

**

*

*

Installation Manual SMC9-11TLRP-IA-en-51 13

3 Scope of Delivery SMA Solar Technology AG

Position Quantity Designation

Q 1 Installation manual, user manual, document set

with explanations and certificates,
supplementary sheet with the default settings

* 1 spare part for the enclosure lid included

** Optional

14 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 4 Product Description

4 Product Description

4.1 Sunny Mini Central

Aufgabe_SMC-TL

The Sunny Mini Central is a transformerless PV inverter, which converts the direct current of the
PV array to grid-compliant alternating current and feeds it into the electricity grid.

Figure 3: Design of the Sunny Mini Central

Item Designation

A Ventilation grid

BType label

C Electronic Solar Switch (ESS)

DLEDs

EDisplay

FEnclosure lid

G Screws of the enclosure lid

Installation Manual SMC9-11TLRP-IA-en-51 15

4 Product Description SMA Solar Technology AG

Symbols on the Inverter

Icon Designation Explanation

Tapping You can operate the display by tapping it:

• Single tap: Switch on display
illumination or switch to the next
display message.

• Tapping twice: The inverter shows the
display messages from the start-up
phase.

After two minutes, the backlight switches off
automatically.

Inverter This symbol defines the function of the green

LED. The green LED indicates the operating
state of the inverter.

Earth fault This symbol defines the function of the red

LED. The red LED indicates an earth fault, a
defective varistor or a defective string fuse.

Observe the documentation. This symbol defines the function of the

yellow LED which indicates a fault or
disturbance. Read the manual to remedy the
fault or disturbance.

Protective conductor This symbol indicates the position for the

protective conductor connection.

Danger to life due to high
voltages in the inverter;
observe waiting time.

High voltages that can cause fatal electric
sh ock s are pres ent in t he live com pon ent s of
the inverter. The capacitors take ten minutes
to discharge. Prior to performing any work
on the inver ter, d isc onn ect it f rom all vo lta ge
sources, as described in this document
(see section 9).

QR Code

®

The QRCode

®

links to the SMA Bonus
Programme (for information see
www.SMA-Bonus.com).

16 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 4 Product Description

4.2 Type Label

The type label uniquely identifies the inverter. The type label is located on the right-hand side of the
enclosure.

Figure 4: Layout of the type label

Item Explanation

AInverter device type

BInverter serial number

C Device-specific characteristics

D Field for additional information, e.g. details of standards

E Inverter manufacture date (year-month-day)

STSatz_Typenschild_Funkt ionsbeschreibung

You require the information on the type label to use the product safely and for questions to the
SMA Service Line. The type label must be permanently attached to the product.

Installation Manual SMC9-11TLRP-IA-en-51 17

4 Product Description SMA Solar Technology AG

Symbols on the Type Label

SMCTLRP_Tabelle Symbole auf Typensch ild

Icon Designation Explanation

Danger to life due to high
voltages

The inverter operates at high voltages.
All work on the inverter must be carried
out by skilled persons only.

Risk of burns from hot surfaces 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 the documentation. Observe all documentation that is

supplied with the inverter.

DC Direct current

Without transformer The inverter does not have a transformer.

AC Alternating current

Proper disposal Do not dispose of the inverter together

with the household waste.

CE marking The inverter complies with the

requirements of the applicable EU
directives.

Degree of protection The inverter is protected against dust

intrusion and water jets from any angle.

Outdoor The inverter is suitable for outdoor

installation.

RAL quality mark for solar
products

The inverter complies with the
requirements of the German Institute for
Quality Assurance and Labelling.

Australian mark of conformity The inverter complies with the

requirements of the applicable
Australian guidelines.

18 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 4 Product Description

Icon Designation Explanation

Korean mark of conformity The inverter complies with the

requirements of the applicable Korean
guidelines.

Chinese mark of conformity The inverter complies with the

requirements of the applicable Chinese
guidelines.

4.3 Display and LEDs

The display and the LEDs of the inverter are located on the enclosure lid and indicate the operating
state of the inverter.

Figure 5: Design of the display

Position Designation Explanation

A Display 2-line LC text display for displaying operating data

B Tap symbol You can operate the display by tapping it:

• Tapping once: Switch on display illumination or switch to
the next display message.

• Tapping twice in quick succession: The inverter shows the
display messages from the start-up phase.

After two minutes, the backlight switches off automatically.

C Green LED Indicates the operating state of the inverter.

D Red LED Indicates an earth fault, a defective varistor or a defective string

fuse.

E Yellow LED Indicates an error or fault. Read the manual to rectify the error

or fault.

The display shows the current operating data of the inverter (e.g. mode, performance, input voltage)
and errors or faults (see section 10.2 "Display Messages", page 58).

The LEDs indicate the operating state of the inverter, and clarify the messages in the display using
different blink codes (see section 10.1 "LED Signals", page 56).

Installation Manual SMC9-11TLRP-IA-en-51 19

4 Product Description SMA Solar Technology AG

4.4 Electronic Solar Switch (ESS)

Aufgabe_ESS

The ESS and the DC connectors form a DC load disconnect unit.
There are two types of ESS with different plug designs. The function of the ESS is identical in both

cases.

Figure 6: Example of ESS design with visible metal mounting tab

Item Designation Explanation

A Plug Depending on the type of ESS, the metal

mounting tabs in the plug are visible or in a
plastic enclosure.

BLabel

Funktion_ESS

When plugged in, the ESS forms a conductive path between the PV array and the inverter. Removing
the ESS interrupts the DC electric circuit and removing all DC connectors disconnects the PV array
completely from the inverter.

• If the ESS is plugged in, the DC
electric circuit is closed.

• To interrupt the DC electric circuit,
you must first perform steps 1 and 2

consecutively.

• Remove the ESS.

• Remove all DC connectors.

20 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 4 Product Description

4.5 SMA Power Balancer

The SMA Power Balancer is a function of the Sunny Mini Central, which allows three-phase grid
connection.

Figure 7: Design of a three-phase feed-in unit with three Sunny Mini Central inverters with SMA Power Balancer

Using the SMA Power Balancer, you can connect three Sunny Mini Central inverters to a three-phase
feed-in unit, preventing unbalanced loads. Unbalanced load refers to power fed-in asymmetrically,
which depends on the country data set selected and may be between 4.6 kVA and 6 kVA.

Taking the local network operator's connection conditions into account, you can use the
SMA Power Balancer to implement three-phase line-voltage monitoring. This disconnects all three
Sunny Mini Central inverters completely from the electricity grid or limits their power in the event of a
grid error.

The connections for the SMA Power Balancer are galvanically isolated from the rest of the
Sunny Mini Central electronic circuit.

This Sunny Mini Central has a socket for connecting the SMA Power Balancer to the bottom of the
inverter. To connect three Sunny Mini Central inverters of the same type, you need a special Y cable.
You can only connect Sunny Mini Central inverters which have the same type of connection for the
SMA Power Balancer to one another. Sunny Mini Central inverters with a different type of connection
for the SMA Power Balancer can be retrofitted and connected with the Y cable.

Operating Modes of the SMA Power Balancer

Erläuterung_SMCTLRP_Power Balancer

Wenn setting the country data set VDE-AR-N4105-HP, the SMA Power Balancer is activated by
default and set to the operating mode PowerGuard. If the SMA Power Balancer is not connected to
the other inverters, there is no communicative coupling between the inverters and the different line
conductors and the feed-in power of the inverter is limited to 4.6 kVA.

By default, the SMA Power Balancer is deactivated for all other country data sets and can only be
activated with an SMA communication product. To activate the SMA Power Balancer, you can choose
from three operating modes.

Installation Manual SMC9-11TLRP-IA-en-51 21

4 Product Description SMA Solar Technology AG

Operating mode Explanation

Off The SMA Power Balancer is deactivated (default setting).

If one of the three inverters indicates a line voltage error or a device
fault, only the inverter affected disconnects from the electricity grid.
The other two inverters continue to feed in at full power.

FaultGuard Th is op erat ing mode a llows y ou to implement three-phase line-voltage

monitoring, which also reacts to device faults.

• If one of the three inverters indicates a line-voltage error and
stops feeding in, the other two inverters also disconnect from the
electricity grid immediately.

• If one of the three inverters indicates a device fault and stops
feeding in, the other two inverters also disconnect from the
electricity grid after five minutes.

PhaseGuard Th is op erat ing mode a llows y ou to implement three-phase line-voltage

monitoring.

• If one of the three inverters indicates a line-voltage error and
stops feeding in, the other two inverters also disconnect from the
electricity grid immediately.

• If one of the three inverters indicates a device fault and stops
feeding in, the other two inverters continue to feed in at full
power.

PowerGuard You can select this operating mode if the entire PV plant consists only

of three Sunny Mini Central inverters and, in the event of an error,
unbalanced load is to be limited to between 4.6 kVA and 6 kVA
depending on the country data set selected.

• If one of the three inverters indicates a line voltage error or
device fault and stops feeding in, the other two inverters
automatically limit their power to between 4.6 kVA and 6 kVA
depending on the country data set selected.

22 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 4 Product Description

4.6 Communication

The inverter can be equipped with an SMA communication interface (e.g. RS485). This
communication interface will enable the inverter to communicate with special SMA communication
products or other inverters (for information on supported products, see www.SMA-Solar.com). The
interface can either be retrofitted, installed at the factory according to a specific order, or included in
the regular scope of delivery.

You can only set the operating parameters of the inverter via SMA communication products.
Depending on the type of communication, RS485 or Bluetooth, the parameters and messages are

displayed differently on the communication products.

Example: How the country data set parameter is displayed

For communication via RS485: parameter CntrySet
For communication with Bluetooth: parameter Set country standard

This manual specifies the parameter names and messages of the two types of communication.
In the inverter display, the parameters and messages are depicted independently of the connected

communication interface and may also differ.

4.7 Grid Management

The inverter is equipped with grid management functions.

Funktionsweise_Einspeisemanagement-Funktion mit Internetverweis

Depending on the requirements of the network operator, you can activate and configure the functions
(e.g. provision of reactive power, active power limitation) via operating parameters (for information
on the functions and operating parameters, see the Technical Description "Operating Parameters" at
www.SMA-Solar.com).

4.8 Fuse Holders for String Fuses

The inverter is equipped with five fuse holders for string fuses. String fuses allow the inverter to protect
the PV modules against possible reverse currents.

Whether you have to install string fuses in the inverter depends on the reverse-current resistance of the
PV modules used and the number of strings directly connected to the inverter (for information on the
string fuses, see the Technical Information "Use of String Fuses" at www.SMA-Solar.com).

Use only the string fuses available from SMA Solar Technology AG (see section 13 "Accessories",
page 91).

Note that the string fuses are a precautionary measure only to minimise the risk of fire in the event of
an error, for example. Using string fuses does not guarantee that the PV array is protected against
consequential damage.

Installation Manual SMC9-11TLRP-IA-en-51 23

4 Product Description SMA Solar Technology AG

4.9 Varistors

Varistors are voltage-dependent resistors that protect the inverter against overvoltage. The inverter is
equipped with thermally monitored varistors.

Varistors can become worn and lose their protective function with age or repeated strain as a result
of overvoltage. The inverter detects if one of the varistors is defective and indicates an error
(see section 10 "Troubleshooting", page 56).

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.

4.10 SMA Grid Guard

SMA Grid Guard acts as an automatic disconnection device between a grid-parallel generator
(e.g. a PV plant or small wind turbine system) and the electricity grid.

SMA Grid Guard is also a grid monitoring concept which detects errors by permanently monitoring
grid impedance, mains voltage and mains frequency. For example, SMA Grid Guard detects when a
stand-alone grid is formed and disconnects the inverter from the electricity grid immediately.

In some countries, the connection conditions require a device which protects grid-relevant operating
parameters against unpermitted changes. SMA Grid Guard performs this function.

Some country data sets are automatically protected after the first ten feed-in hours. The protected
country data sets can only be changed via a communication product on entry of a personal access
code, the SMA Grid Guard code, after ten feed-in hours (for information on changing parameters,
see the manual for the communication product). You will receive the SMA Grid Guard code from
SMA Solar Technology AG (to apply for the SMA Grid Guard code, see the certificate
"Application for SMA Grid Guard Code" at www.SMA-Solar.com).

4.11 All-Pole Sensitive Residual-Current Monitoring Unit

The inverter is equipped with an all-pole sensitive residual-current monitoring unit with an integrated
differential current sensor.

The all-pole-sensitive residual-current monitoring unit detects alternating and direct differential
currents. The integrated differential current sensor detects the current difference between the neutral
conductor and the number of line conductors for single-phase and three-phase inverters. If the current
difference increases suddenly, the inverter disconnects from the electricity grid.

If an external residual-current device is required or planned, you must install a residual-current device
which trips at a residual current of 100 mA or higher. That ensures that the inverter does not
disconnect from the electricity grid due to leakage currents caused by operation. If the locally
applicable installation regulations require the use of a residual-current device that trips at a lower
residual current, e.g. 30 mA, leakage currents caused by operation can cause false tripping.

24 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 5 Mounting

5Mounting

5.1 Selecting the Mounting Location

Requirements for the mounting location:

WaHiw_Lebensgefahr durch Feuer und Explosion

Danger to life due to fire or explosion

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.

☐ The mounting location must be inaccessible to children.
☐ A solid surface must be available for mounting, e.g. concrete or masonry. When mounted on

plasterboard or similar materials, the inverter will develop audible vibrations during operation,

which could be considered disturbing.
☐ It may not be mounted on a pillar.
☐ The mounting location must be suitable for the weight and dimensions of the inverter

(see section 12 "Technical Data", page 82).
☐ The mounting location must be freely and safely accessible at all times without the necessity for

any auxiliary equipment, such as scaffolding or lifting platforms. Non-fulfillment of these criteria

may restrict servicing.
☐ The installation site should not be exposed to direct solar irradiation. Direct solar irradiation can

heat up the inverter excessively. As a result, the inverter reduces its power output.
☐ Climatic conditions must be met (see section 12 "Technical Data", page 82).
☐ The ambient temperature must be below 40°C to ensure the optimal operation of the inverter.

Installation Manual SMC9-11TLRP-IA-en-51 25

5 Mounting SMA Solar Technology AG

Dimensions for wall mounting:

Figure 8: Dimensions of the wall mounting bracket and dimensions of the holes for the optional anti-theft device in the

26 SMC9-11TLRP-IA-en-51 Installation Manual

inverter enclosure

SMA Solar Technology AG 5 Mounting

Observe recommended clearances:

Figure 9: Recommended clearances

• Observe the recommended clearances to the walls as well as to other inverters or objects.

This ensures adequate heat dissipation and sufficient space to remove 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 prevents 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-Solar.com).

Observe the permitted mounting position:

Figure 10: Permitted and prohibited mounting positions

• Mount the inverter in a permitted mounting position. The display should be mounted at eye level.

☑ Mounting the inverter in a permissible position will ensure that no moisture can enter.
☑ By mounting the device at eye level, display messages and LED signals can be read without

difficulty.

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5.2 Mounting the Inverter

Additionally required mounting material (not included in the scope of delivery):

☐ At least two screws which are suitable for the weight of the inverter and the surface
☐ At least two washers that are suitable for the screws
☐ At least two wall plugs that are suitable for the mounting surface and for the screws
☐ If the inverter is to be secured against theft, at least one safety screw and one wall plug suitable

for the safety screw

WaHiw_Verletzungsgefahr durch hohes Gewicht

Risk of injury when lifting and from falling inverter

The inverter is heavy (see section 12 "Technical Data", page 82). Lifting the inverter incorrectly, or
if it falls during transportation or while attaching it to the wall mounting bracket result in a risk of
injury.

• Lift and transport the inverter into the mounting
po sition ho riz ontally. Use t he s ide recesse d gr ips or
a steel rod (diameter: maximum 30 mm).

1. Ensure that there are no cables in the wall which could be damaged when drilling.

2. Align the wall mounting bracket horizontally on the wall and use it to mark the position of the
drill holes. Use at least one hole on the left-hand side and one on the right-hand side of the wall
mounting bracket.

3. Drill the holes and insert the wall plugs.

4. Secure the wall mounting bracket horizontally on the wall using screws and washers.

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5. If the inverter is to be secured against theft, mark the drill hole for the attachment of the safety
screw:

• Hook the inverter into the wall mounting

bracket.

• Mark the drill hole on the left-hand side or

right-hand side. If you want to secure the
inverter with two safety screws, mark both drill
holes.

• Remove the inverter by lifting it up vertically

and out of the wall mounting bracket.

• Drill the hole or holes to attach the safety screw and insert the wall plug(s).

6. Hook the inverter into the wall mounting bracket.

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5 Mounting SMA Solar Technology AG

7. Attach the inverter to the wall mounting bracket
on both sides using the M6x8 screws provided
and an Allen key (AF 5). Only tighten the screws
hand-tight. That prevents the inverter being lifted
out.

8. Close the recessed grips with the ventilation
grids. Ensure the assignment is correct. The
correct assignment is marked on the inside of
each ventilation grid: links/left for the left-hand
side and rechts/right for the right-hand side.

9. If the holes for attaching the safety screw are
pre-drilled, secure the inverter with at least one
safety screw through the pre-drilled hole.

10. Ensure that the inverter is securely attached.

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6 Electrical Connection

6.1 Safety during Electrical Connection

Electric Shock

SiHiw_Stromschlag durch hohe Spannung

When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the DC
conductors and the live components of the inverter. Touching the DC conductors or the live
components can lead to lethal electric shocks.

• Do not touch the DC conductors.

• Do not touch any live components of the inverter.

• Before performing any work on the inverter, always disconnect it from all voltage sources, as
described in this document (see section 9).

Electrostatic Discharge

SiHiw_Vor Berühren erden

Touching electronic components can cause damage to or destroy the inverter through electrostatic
discharge.

• Earth yourself before touching any components.

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6.2 Overview of the Connection Area

6.2.1 Bottom View

Figure 11: Connection areas and enclosure openings at the bottom of the inverter

Item Designation Explanation

A Positive DC connector with filler plug For connecting the positive DC cables

B Socket For connecting the ESS

C Negative DC connector with filler plug For connecting the negative DC cables

D Enclosure opening For routing the data cables through

E Socket For connecting the SMA Power Balancer

F Enclosure opening For routing the AC cable through

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6.2.2 Interior View

Figure 12: Components and connection areas in the interior of the inverter

Item Designation Explanation

A Jumper slot For checking the fans

B Terminal For the AC cable

C Flat male tabs For earthing the cable shield of the

data cable

D Screw fixture for the shield

connection terminal

For earthing the cable shield of the
data cable

EFuse For the ESS

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Item Designation Explanation

F Fuse holders For installing the string fuses

G Connection area and slot For communication interfaces

6.3 AC Connection

6.3.1 Conditions for AC Connection

Cable requirements:

☐ Conductor cross-section without bootlace ferrule: maximum 25 mm².
☐ Conductor cross-section with bootlace ferrule: maximum 10 mm².
☐ At a conductor cross-section of 25 mm², a flexible cable must be used.
☐ When designing the conductor cross-section, all factors must be taken into consideration

(see the design program "Sunny Design" from software version 2.0 at www.SMA-Solar.com).

☐ The maximum cable length subject to conductor cross-section must be observed. Useful hint: If

you group three inverters to a three-phase plant with symmetrical feed-in, the line losses are
halved. That doubles the maximum cable length possible.

☐ External diameter of the cable corresponds to the clamping range of the cable gland:

18 mm ... 32 mm.

☐ The cable must be dimensioned in accordance with any local and national guidelines on cable

dimensions which specify requirements for the minimum conductor cross-section. Examples of
factors influencing cable dimensioning are: nominal AC current, type of cable, routing method,
cable bundling, ambient temperature and maximum desired line losses (for calculation of line
losses, see design software Sunny Design from software version 2.0 www.SMA-Solar.com).

Switch-disconnector and cable protection:

WaHiw_Schraubsicherungen als Lasttrenneinrichtung

Damage to the inverter due to the use of screw-type fuses as switch-disconnectors

Screw-type fuses (e.g. DIAZED fuse or NEOZED fuse) are not switch-disconnectors.

• Do not use screw-type fuses as switch-disconnectors.

• Use a switch-disconnector or miniature circuit-breaker as a load disconnect unit (for information
and design examples, see the Technical Information "Miniature Circuit-Breaker" at
www.SMA-Solar.com).

• In plants with multiple inverters, protect every inverter with a separate miniature circuit-breaker.
Observe the maximum permissible fuse protection (see section 12 "Technical Data", page 82).
That prevents residual voltage being present at the corresponding cable after disconnection.

• Loads installed between the inverter and the miniature circuit-breaker must be protected
separately.

SMC_Fehlerstrom-Über wachungseinheit

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Residual-current monitoring unit:

• If an external residual-current device is required, install a residual-current device which trips at a
residual current of 100 mA or higher (for details on selecting a residual-current device, see the
Technical Information "Criteria for Selecting a Residual-Current Device" at www.SMA-Solar.com).

SMC Classic_Überspannun gskategorie

Overvoltage category

The inverter can be used in grids of installation category III or lower in accordance with IEC 60664-1.
That means that the inverter can be permanently connected to the junction box of a building. In case
of installations with long outdoor cabling routes, additional measures to reduce overvoltage category
IV to overvoltage category III are required.

STP klein SMC_Schutzleiter-Überwachung

Protective conductor monitoring:

The inverter is equipped with protective conductor monitoring which detects when no protective
conductor is not connected and disconnects the inverter from the electricity grid.

Connection of an additional protective conductor

In some countries an additional earthing is required. In each case, observe the local
applicable regulations.

• If an additional earthing is required, earth the inverter (see section 6.3.3 "Additional
Earthing of the Enclosure", page 37). The conductor cross-section muss correspond to the
cross section of the original protective conductor. This prevents touch cur rent if t he original
protective conductor fails.

6.3.2 Connecting the Inverter to the Electricity Grid

Requirements:

☐ The display language must be set to the required language (see section 7.4 "Changing the

Display Language", page 50).
☐ The connection requirements of the network operator must be met.
☐ The mains voltage must be in the permissible range. The exact operating range of the inverter is

specified in the operating parameters (see the Technical Description "Operating Parameters" at

www.SMA-Solar.com).

1. Disconnect the miniature circuit-breaker and secure against reconnection.

2. Loosen all screws and conical spring washers of the enclosure lid and remove the lid.

3. Remove the adhesive tape from the enclosure opening for the AC cable.

4. Attach the cable gland to the enclosure opening for the AC cable using a counter nut.

5. Strip the AC cable insulation.

6. Shorten L and N by 5 mm each.

7. Strip 18 mm of the L, N and PE insulation each.

8. Route the AC cable into the inverter through the cable gland. If necessary, slightly loosen the
swivel nut of the cable gland.

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6 Electrical Connection SMA Solar Technology AG

9. Connect the AC cable to the terminal block for the AC cable using a screwdriver:

• Connect PE to terminal PE.

•Connect N to terminal N.

• Connect L to terminal L.

10. Close the inverter and earth the enclosure lid:

• Attach one conical spring washer to each

screw. The grooved side of the conical spring
washer must point to the screw head.

• Secure the enclosure lid with screws in the

sequence 1 to 6 (torque: 6 Nm).

☑ The teeth of the conical spring washers are pushed into the enclosure lid. This ensures that

the enclosure lid is earthed.

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6.3.3 Additional Earthing of the Enclosure

You can additionally earth the inverter enclosure if a second earthing or equipotential bonding is
required locally. This prevents touch current if the original protective conductor fails.

Cable requirement:

☐ Earthing cable cross-section: 16 mm² at maximum

1. Strip the earthing cable insulation.

2. Lead the clamping bracket over the earthing
cable. Position the protective conductor on the
left-hand side.

3. Screw the clamping bracket tight using the
M6x16 cheese- head screw and a conical spring
washer (torque: 6 Nm). The teeth of the conical
spring washer must face the clamping bracket.

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6.4 DC Connection

6.4.1 Conditions for DC Connection

Funkt.Titel_Anforderungen an die PV-Module

Requirements for the PV modules:

☐ All PV modules must be of the same type.
☐ The same number of series-connected PV modules must be connected to all strings.
☐ All PV modules must be aligned identically.
☐ All PV modules must have the same tilt angle.
☐ The maximum input current per string must be maintained and must not exceed the through-fault

current of the DC connectors (see section 12 "Technical Data", page 82).

☐ The thresholds for the input voltage and the input current of the inverter must be observed

(see section 12 "Technical Data", page 82).

☐ At an ambient temperature over 10°C, the open-circuit voltage of the PV modules must not

exceed 90% of the maximum input voltage of the inverter. That prevents the voltage exceeding
the maximum input voltage of the inverter at lower ambient temperatures.

☐ The positive connection cables of the PV modules must be equipped with the positive DC

connectors.

☐ The negative connection cables of the PV modules must be equipped with the negative DC

connectors.

Wichtig_Parallelschaltung mit Y-Adapter

Use of Y adaptors for parallel connection of strings

The Y adaptors must not be used to interrupt the DC electric circuit.

• Do not use the Y adaptors in the immediate vicinity of the inverter. The adaptors must not
be visible or freely accessible.

• In order to interrupt the DC electric circuit, disconnect the inverter (see section 9).

6.4.2 Assembling the DC Connectors

Figure 13: DC connectors

Item Designation

A Negative DC connector

B Positive DC connector

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+

+

+

Cable requirements:

The cable must be of type PV1-F, UL-ZKLA or USE2 and comply with the following properties:

☐ External diameter: 5 mm … 8 mm.
☐ Conductor cross-section: 2.5 mm² … 6 mm²
☐ Number of conductors: at least seven
☐ Nominal voltage: at least 1,000 V

Proceed as follows to assemble each DC connector.

Electric shock due to high voltages

When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the
DC conductors and the live components of the inverter. Touching the DC conductors can result in
lethal electric shocks.

• Do not touch the DC conductors.

1. Strip 12 mm of the cable insulation.

2. Route the stripped cable all the way into the DC
connector. Ensure that the stripped cable and the
DC connector have the same polarity.

3. Push the clamping bracket down.

☑ The clamping bracket clicks audibly into place.

☑ The stranded wire can be seen inside the

clamping bracket chamber.

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6 Electrical Connection SMA Solar Technology AG

+

1

2

+

1

2

✖ Is the stranded wire not visible in the chamber?

The cable is not correctly in place.

• Release the clamping bracket. To do so,
insert a screwdriver (blade width: 3.5 mm)
into the clamping bracket and lever it open.

• Remove the cable and go back to step 2.

4. Push the swivel nut up to the thread and tighten
(torque: 2 Nm).

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6.4.3 Connecting the PV Array

WaHiw_Leerlaufspannung darf max. Eingangsspannung nicht überschreiten

Destruction of the inverter due to overvoltage

If the open-circuit voltage of the PV modules exceeds the maximum input voltage of the inverter, the
inverter can be destroyed by the overvoltage.

• If the open-circuit voltage of the PV modules exceeds the maximum input voltage of the inverter,
do not connect any PV strings to the inverter and check the design of the PV plant.

1. Disconnect the miniature circuit-breaker and secure against reconnection.

2. If the ESS is plugged in, remove the ESS.

3. Remove the filler plugs from all the DC inputs on
the inverter.

4. Check strings for earth faults. Checking the PV Plant for Earth Faults.

5. Connect the assembled DC connectors to the
inverter.

☑ The DC connectors click audibly into place.

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6 Electrical Connection SMA Solar Technology AG

+

1

2

+

+

6.

Damage to the inverter due to moisture penetration

The inverter is only properly sealed when all the unused DC inputs are closed with DC
connectors and sealing plugs.

• DO NOT insert the sealing plugs DIRECTLY into the DC inputs on the inverter.

• For unused DC connectors, push down the
cl amp ing bracket and push the swi vel nu t up to
the thread.

• Insert the sealing plug into the DC connector.

• Tighten the DC connector (torque: 2 Nm).

• Insert the DC connectors with sealing plugs
into the corresponding DC inputs on the
inverter.

☑ The DC connectors click audibly into place.

7. Ensure that all DC connectors are securely in place.

8. Check the ESS for wear (see section 10.6).

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9.

Risk of fire due to tightening the screw within the ESS

A perfect contact between the ESS and the inverter is only guaranteed if the ESS plug remains
flexible.

• Do not tighten the screw in the plug of the ESS.

10.

Damage to the inverter due to moisture and dust intrusion

If the ESS is not plugged in or incorrectly plugged in during operation, moisture and dust can
penetrate the inverter. If the ESS is not correctly plugged in, this can cause contacts in the ESS
to wear or the ESS might fall out of the socket. This can result in yield loss and damage to the
ESS.

Always plug in the ESS as follows:

• Firmly plug in the ESS until it is flush with the
enclosure.

• Ensure that the gap between the ESS and the
enclosure is no more than 1 mm.

6.5 Connecting the SMA Power Balancer

You need a special Y cable to connect the SMA Power Balancer. The Y cable is not a standard
accessory. You can order the Y cable from SMA Solar Technology AG (see section 13 "Accessories",
page 91).

The Y cable is designed for distances of maximum 2 m between two inverters. If the distance between
inverters is longer, you will have to extend the cable.

Requirements for the extension cord:

☐ Maximum cable length: 300 m
☐ Extension cord for indoor use: Li2YCY 1 x 2 x 0.25 mm², shielded, flexible, insulated, twisted

pair.

☐ Extension cord for outdoor use: Li2YCYv 1 x 2 x 0.25 mm², shielded, flexibl e, ins ulated, twisted

pair.

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Requirements:

☐ Every inverter must be connected to a line conductor L1, L2 or L3 of the electricity grid

(for information on the three-phase grid connection, see the Technical Information "Three-Phase
Grid Connection" at www.SMA-Solar.com).

☐ All three inverters must be equipped with the SMA Power Balancer plug-in system.

Hint: If an inverter is not equipped with a SMA Power Balancer plug-in system, you can order a
retrofit kit (see section 13 "Accessories", page 91).

☐ The Y cable for the SMA Power Balancer plug-in system must be available.

1. Disconnect the inverter from all voltage sources (see section 9).

2. To extend the Y cable:

• Cut the Y cable in the middle.

• Connect the conductors and cable shield 1:1 to the extension cord inside a junction box.
Observe the maximum cable length of 300 m.

3. Remove the screw cap from the socket of each
inverter.

4. Insert the plug of the Y cable with the two cable
inputs into the socket of the middle inverter and
tighten it.

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5. Insert the other two plugs of the Y cable in the
respective socket of the other inverters and
tighten them.

6. Commission the inverter (see section 8 "Commissioning", page 51).

7. To use the SMA Power Balancer function, activate the SMA Power Balancer via a
communication product (see section 7.1 "Checking the Function of the SMA Power Balancer
and Setting the Operating Mode", page 47).

6.6 Installing the String Fuses

When installing string fuses in the inverter for the first time, always install all five string fuses. The same
applies if you connect less than five strings to the inverter.

Install each string fuse as described in this section.

Requirement:

☐ A retrofit kit with five fuses and five fuse extractors must be available.

Damage to the inverter due to string fuse burn-off

It cannot be guaranteed that commercially available string fuses will function correctly. In the event
of an error, the string fuses can burn off.

• Use only the retrofit kits with string fuses available from SMA Solar Technology AG.

1. Disconnect the inverter from all voltage sources (see section 9).

2. Remove the jumper from the fuse holder using
insulated pliers.

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6 Electrical Connection SMA Solar Technology AG

3. Insert the string fuse into the fuse extractor.

4. Insert the fuse extractor with the string fuse into
the fuse holder.

5. Commission the inverter (see section 8 "Commissioning", page 51).

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7Configuration

7.1 Checking the Function of the SMA Power Balancer and Setting the Operating Mode

Requirements:

☐ The inverter must be equipped with a communication interface.
☐ A communication product, data logger or software appropriate for the type of communication

used must be available.
☐ The responsible network operator must approve changes of grid-relevant parameters.
☐ SMA Grid Guard code for changing grid-relevant parameters must be available (to apply for

an SMA Grid Guard code, see Certificate "Application for SMA Grid Guard Code" at

www.SMA-Solar.com).

1. Open the user interface of the data logger or software.

2. Enter the SMA Grid Guard code.

3. For all three inverters, select the parameter PowerBalancer or PowerBalancer operating
mode and set it to PhaseGuard.

4. Check whether all inverters display the message Mode MPP and whether the green LED of the
inverters is glowing.

If all inverters display the message PowerBalance, check the connection of the
SMA Power Balancer.

If the connection is correct and the problem persists, contact the SMA Service Line.

5. Switch off the miniature circuit-breaker of 1 inverter.
☑ The inverter with the de activat ed miniature c ircuit- breaker di splays the messag e Vac-Bfr an d

disconnects from the electricity grid.

☑ The other two inverters display the message PowerBalance and also disconnect from the

electricity grid. They then display the message Balanced.

✖ The inverters do not disconnect from the electricity grid?

The connection of the SMA Power Balancer is probably faulty or the parameter
Power Balancer is not set to PhaseGuard.

• Ch eck the con nec tio n and setti ng of th e SMA Pow er B ala ncer. If the connection is correc t
and the parameter PowerBalancer is set to PhaseGuard, contact the
SMA Service Line.

6. For all three inverters, select the parameter PowerBalancer or PowerBalancer operating
mode and set the required operating mode (description of the operating modes of the
SMA Power Balancer (see section 4.5)).

7. Switch the miniature circuit-breaker.

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7 Configuration SMA Solar Technology AG

7.2 Changing the Country Data Set

By default, the inverter is set to a specific country data set. You can see the country data set to which
the inverter is set in the enclosed supplementary sheet with the default settings. If the country data set
does not apply at the installation location, you will need to change it (for information on the operating
parameters, see the Technical Descriptions "Operating Parameters" and "PV Inverters ‒ Overview of
Country Data Sets" at www.SMA-Solar.com).

Danger to life due to high voltages in the event of outage of the electricity grid

If you set the inverter to stand-alone grid operation OFF-Grid, you must not operate the inverter on
the electricity grid, but only on a stand-alone grid. As a result, the inverter fulfills the country-specific
grid connection standards and disconnects reliably from the electricity grid.

• If the inverter is set to OFF-Grid, never operate it directly on the electricity grid.

Requirements:

☐ The inverter must be equipped with a communication interface.
☐ A communication product, data logger or software appropriate for the type of communication

used must be available.

☐ The responsible network operator must approve changes of grid-relevant parameters.
☐ The SMA Grid Guard code for changing the grid-relevant parameters must be available

(to apply for an "SMA Grid Guard" code, see the certificate "Application for SMA Grid Guard
Code" at www.SMA-Solar.com).

1. Open the user interface of the data logger or software.

2. Enter the SMA Grid Guard code in the communication product (e.g. software).

3. Select the parameter Default or Set country standard and adjust the required country data
set.

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7.3 Setting the Country Data Set for Operation with External Decoupling Protection

For operating the PV plant with external decoupling protection, the inverter has an additional country
data set MVtgDirective or Medium-Voltage Directive. This country data set allows you to extend
the operating range of the inverter for voltage and frequency (for information on the operating
parameters and country data sets, see the technical descriptions "Operating Parameters and
"P V Inve rters ‒ Ove rvie w of Countr y Dat a Sets" at www.S MA-S ola r.com ). T his cou ntr y dat a set should
only be selected if the PV plant is disconnected via external decoupling.

Electric shock due to lack of external decoupling protection

If you set the MVtgDirective or Medium-Voltage Directive country data set, you are only
allowed to operate the inverter with an external three-phase decoupling protection. Without
external three-phase decoupling protection, the inverter will not disconnect from the electricity grid
when the standard requirement is exceeded.

• Install external three-phase decoupling protection.

Requirements:

☐ The inverter must be equipped with a communication interface.
☐ A communication product, data logger or software appropriate for the type of communication

used must be available.
☐ The responsible network operator must approve changes of grid-relevant parameters.
☐ The SMA Grid Guard code for changing the grid-relevant parameters must be available

(to apply for an "SMA Grid Guard" code, see the certificate "Application for SMA Grid Guard

Code" at www.SMA-Solar.com).

1. Open the user interface of the data logger or software.

2. Enter the SMA Grid Guard code.

3. Select the parameter Default and set it to MVtgDirective or selec t the parameter Set country
standard and set it to Medium-Voltage Directive.

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7 Configuration SMA Solar Technology AG

7.4 Changing the Display Language

You can change the display language of the inverter. Various languages are available depending on
the country data set selected.

Figure 14: Two switches at the bottom of the display assembly

1. Disconnect the inverter from all voltage sources (see section 9).

2. Select the required language via the two switches:

Language Switch S2 Switch S1

German B B

English B A

French A B

Spanish A A

3. Commission the inverter (see section 8 "Commissioning", page 51).

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8 Commissioning

Initial Start-Up

When commissioning the inverter for the first time, proceed as follows.

Requirements:

☐ The miniature circuit-breaker must be correctly rated.
☐ The inverter must be correctly mounted and closed.
☐ All cables must be correctly connected.
☐ Unused DC inputs must be sealed using the corresponding DC connectors and sealing plugs.
☐ The ESS must be securely plugged in.

• Switch on the miniature circuit-breaker.
☑ The start-up phase begins. All three LEDs are glowing or flashing.

☑ The green LED is glowing and the start-up phase begins. The display shows the device type,

firmware version, country data set and operating mode of the SMA Power Balancer
consecutively. After the start-up phase has been completed, the current power, rea ctive power
and displacement power factor cos φ are displayed.

✖ Have all LEDs gone out?

The ESS is not plugged in or there is no DC input voltage.

• Plug in the ESS securely or wait until DC input voltage is present.

✖ Is the green LED flashing?

The DC input voltage is still too low.

• Once the DC input voltage is sufficiently high, the inverter will start to operate.

✖ Is the yellow or red LED glowing or flashing?

There is probably a fault or warning present.

• Rectify the fault or warning (see section 10.1 "LED Signals", page 56).

Recommissioning

If you have disconnected the inverter (e.g. for configuration purposes) and want to recommission it,
proceed as follows.

☐ The miniature circuit-breaker must be correctly rated.
☐ The inverter must be correctly mounted.

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8 Commissioning SMA Solar Technology AG

1. Close the inverter and earth the enclosure lid:

• Attach one conical spring washer to each
screw. The grooved side of the conical spring
washer must point to the screw head.

• Secure the enclosure lid with screws in the
sequence 1 to 6 (torque: 6 Nm).

☑ The teeth of the conical spring washers are pushed into the enclosure lid. This ensures that

the enclosure lid is earthed.

2. Connect the DC connectors to the inverter.

3. Seal all unused DC inputs using the DC connectors with sealing plugs.

4. Check the ESS for wear (see section 10.6).

5. Switch on the miniature circuit-breaker.
☑ The start-up phase begins. All three LEDs are glowing or flashing.
☑ The green LED is glowing and the start-up phase begins. The display shows the device type,

firmware version, country data set and operating mode of the SMA Power Balancer
consecutively. After the start-up phase has been completed, the current power, reactive
power and displacement power factor cos φ are displayed.

✖ Have all LEDs gone out?

The ESS is not plugged in or there is no DC input voltage.

• Plug in the ESS securely or wait until DC input voltage is present.

✖ Is the green LED flashing?

The DC input voltage is still too low.

• Once the DC input voltage is sufficiently high, the inverter will start to operate.

✖ Is the yellow or red LED glowing or flashing?

There is probably a fault or warning present.

• Rectify the fault or warning (see section 10.1 "LED Signals", page 56).

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SMA Solar Technology AG 9 Disconnecting the Inverter

9 Disconnecting the Inverter

Before performing any work on the inverter, always disconnect it as described in this section.

1. Disconnect the miniature circuit-breaker and secure against reconnection.

2. Remove the ESS.

3. Use a current clamp to ensure that no current is
present in the DC cables.

4. Unlock and remove all DC connectors.
To do so, insert a slotted screwdriver (blade
width: 3.5 mm) into one of the side slots and pull
the DC connectors straight down. DO NOT
PULL ON THE CABLE whilst doing this.

5.

Danger to life due to high voltages

The capacitors in the inverter take ten minutes to discharge.

• Wait ten minutes before opening the enclosure lid.

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6. Ensure that no voltage is present at the DC inputs
of the inverter using a suitable measuring device.

7. Unscrew all screws of the enclosure lid and
remove the enclosure lid.

8. Ensure that no voltage is present between L and
N at the AC terminal using a suitable measuring
device.

9. Ensure that no voltage is present between L and
PE ( ) at the AC terminal using a suitable
measuring device.

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10.

Damage to the inverter due to electrostatic discharge

The internal components of the inver ter can be irreparably d amage d by e lectrostatic disch arge.

• Earth yourself before touching any components.

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10.1 LED Signals

The LEDs indicate the operating state of the inverter.

Designation Status Explanation

Green LED Glowing Operation

The specific status message is shown in the
display (see section 10.2.2 "Status Messages",
page 59).

Flashing Conditions for grid connection are not yet

fulfilled.

Red LED Glowing Earth fault

The specific error or fault message is shown in the
display (see section 10.2.3 "Errors, Faults,
Warnings", page 60).

Flashing Varistor or string fuse defective

The specific error or fault message is shown in the
display (see section 10.2.3 "Errors, Faults,
Warnings", page 60).

Yellow LED Glowing Permanent operation inhibition

The specific error or fault message is shown in the
display (see section 10.2.3 "Errors, Faults,
Warnings", page 60).

Flashing Error or fault

The specific error or fault message is shown in the
display (see section 10.2.3 "Errors, Faults,
Warnings", page 60).

All LEDs are flashing

If the DC voltage is very low in the start-up phase, all three LEDs go out and the start-up phase
begins again. If irradiation very low, all three LEDs flash. This flashing indicates a normal
operating state. It does not indicate an error.

All LEDs have gone out

If all three LEDs have gone out, the inverter is switched off because the ESS is not plugged in
or there is no irradiation.

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Damage to the inverter due to moisture and dust intrusion

If the ESS is not plugged in or incorrectly plugged in during operation, moisture and dust can
penetrate the inverter. If the ESS is not correctly plugged in, this can cause contacts in the ESS to
wear or the ESS might fall out of the socket. This can result in yield loss and damage to the ESS.

Always plug in the ESS as follows:

• Firmly plug in the ESS until it is flush with the
enclosure.

• Ensure that the gap between the ESS and the
enclosure is no more than 1 mm.

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10.2 Display Messages

10.2.1 Measurement Channels

Measurement channels are measured values which are shown on the display. The measurement
channels can also be read out using a communication product.

Measurement channel Explanation

Balancer Indicates the operating mode of the inverter which is set under the

operating parameter PowerBalancer.

E-total Total amount of energy fed in

Earthfault Insulation resistance of the PV plant before connecting to the

electricity grid.

Error Designation of the current fault or the current error

Event-Cnt Number of events that have occurred

Fac Mains frequency

h-On Total operating hours

h-total Total number of operating hours in feed-in operation

Iac-Ist Line current

Ipv Direct current

Is Apparent current

Line conductor The line conductor to which the inverter is connected.

Netz-Ein Total number of grid connections

Pac AC power supplied

PF Displacement power factor cos φ. In partial load, the value displayed

may deviate from the set target value.

Qac Reactive power

Sac Apparent power

Serial number Inverter serial number

Status Indicates the current operating state

Upv-Soll PV voltage setpoint

Vac Mains voltage

Vpv PV input voltage

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10.2.2 Status Messages

Status messages are shown in the second line of the display and always start with the word “Mode”.
Status messages indicate operating states which do not represent errors or faults. The inverter

continues feeding into the electricity grid.

Message Explanation

Balanced The inverter has disconnected from the electricity grid or is limiting its

power over a ten-minute average to 4.6 kVA. The inverter is part of a
three-phase system with two further inverters and is equipped with the
SMA Power Balancer to prevent the formation of unbalanced loads.

Derating This message can have several causes:

• Overtemperature in the inverter. The inverter reduces its power
to prevent overheating.

• External active power limitation via the Power Reducer Box and
Sunny WebBox. The inverter reduces its power output
automatically due to the network operator's specifications. The
Power Reducer Box transfers the signal from the network
operator to the inverter via the Sunny WebBox.

disturbance The inverter has detected a fault. The specific message is also

displayed (see section 10.2.3 "Errors, Faults, Warnings", page 60).

Earthfault Measurement of the insulation resistance of the PV plant

Error The inverter has detected an error. The specific error message is also

displayed (see section 10.2.3 "Errors, Faults, Warnings", page 60).

grid mon. Grid monitoring. This message appears before the inverter is

connected to the electricity grid if irradiation is low and following an
error.

MPP The inverter is operating in MPP mode. MPP is the standard display

message when operating under normal irradiation conditions.

MPP-Peak The inverter is operating in MPP mode above its nominal power.

MPP-Search The inverter is calculating the MPP.

offset Offset alignment of the measurement electronics

Stop Operation interrupted

V-Const Constant voltage mode

Waiting The conditions for grid connection are not (yet) fulfilled.

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10.2.3 Errors, Faults, Warnings

Errors, faults and warnings are shown in the display and start in the first line with the word "Error",
"Disturbance" or "Warning". In the second line of the display, the cause of the error, fault or warning
is shown.

Message Cause and corrective measures

!PV-Overvoltage! ­!DISCONNECT DC!

ACVtgRPro The ten-minute average mains voltage is no longer within the

Overvoltage at DC input. The inverter may be destroyed.
This message is additionally highlighted by rapid flashing of the

backlight.

Corrective measures:

• Disconnect the miniature circuit-breaker.

• Remove the ESS.

• Unlock and remove all DC connectors using a screwdriver
(blade width: 3.5 mm).

– Insert the screwdriver into one of the side slots.
– Remove the DC connectors.

• Check whether the DC voltage is below the inverter's maximum
input voltage. If the DC voltage is below the maximum input
voltage of the inverter, connect the DC connectors to the inver ter
again.

If the DC voltage is above the maximum input voltage of the
inverter, check the PV plant design or contact installer of the
PV array.

• If this message is repeated frequently, disconnect the inverter
(see section 9) and contact the SMA Service Line.

permissible range. The mains voltage or grid impedance at the
termination point is too high. The inverter disconnects from the
electricity grid to comply with the power quality.

Corrective measures:

• Check that the mains voltage at the termination point of the
inverter is permanently in the permissible range.

If the mains voltage is 253 V or higher, contact the network
operator. Ask the network operator whether the voltage can be
adapted at the feed-in point or whether the he will approve a
change in the limiting value of the "ACVtgRPro" parameter.

If the mains voltage is permanently in the permissible range and
this message is still displayed, contact the SMA Service Line.

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Message Cause and corrective measures

CAN Internal communication fault

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

Check L-N-PE L and N are swapped on the AC connection or PE is not connected.

Corrective measures:

• Ensure that the AC cable is correctly connected (see section

6.3.2 "Connecting the Inverter to the Electricity Grid", page 35).

• If the AC cable is connected correctly and this message is still
displayed, contact the SMA Service Line.

Check Varistor At least one of the varistors is defective.

Corrective measures:

• Check the function of the varistors (see section 10.8).

DC fuse At least one of the string fuses has tripped or is defective.

Corrective measures:

• Check the function of the string fuses (see section 10.10).

Derating The inverter reduces its power output due to overheating.

Corrective measures:

• Clean the fans .

The inverter reduces its power output because the DC input current
exceeds the maximum input current of the inverter.

Corrective measures:

• Ensure that the PV plant is designed correctly.

dI-Bfr
dI-Srr

The inverter has detected a change in the differential current.
A change in the differential current can be caused by an earth fault,

residual current or a malfunction. The inverter disconnects from the
electricity grid.

Corrective measures:

• If none of the above causes apply and this message is still
di spl ayed, ensure tha t the PV plan t is ins ula ted cor rectly and that
there is no earth fault.

dl-Mess Deviation in the differential current measurement

If this message is displayed frequently, permanent shutdown will be
triggered.

Corrective measures:

• Contact the SMA Service Line.

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Message Cause and corrective measures

EEPROM Temporar y fault during reading or writing of data from the EEPROM.

This data is not essential for safe operation.
This message is for your information only and has no effect on the

performance of the inverter.

EEPROM EEPROM data is defective. The inverter switches off because the loss

of data has disabled important inverter functions.

Corrective measures:

• Contact the SMA Service Line.

EeRestore One of the duplicate records in the EEPROM is defective and has

been reconstructed without loss of data.
This message is for your information only and has no effect on the

performance of the inverter.

Fac-Bfr
Fac-Fast
Fac-Srr

Th e ma ins fre quency is outs ide the per mis sib le r ang e. T he i nverter has
disconnected from the electricity grid.

Corrective measures:

• Ensure that the AC cable is correctly connected (see section

6.3.2 "Connecting the Inverter to the Electricity Grid", page 35).

• Ensure that the mains frequency is in the permissible range.

If the mains frequency is in the permissible range and this message is
still displayed, contact the SMA Service Line.

HW-Signal Internal measurement fault or the hardware is defective.

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

Iac-DC_Offs-Srr Excessive DC current is detected during feed-in operation.

Corrective measures:

• Ensure that the grid conditions are observed.

• If this message is displayed frequently or recurrently, contact the
SMA Service Line.

IGBTs Fault in the power electronics

Corrective measures:

• Contact the SMA Service Line.

Imax Overcurrent on the AC side. The current at the AC connection is

higher than specified.

Corrective measures:

• Ensure that the PV plant is designed correctly.

• Ensure that the grid conditions are observed.

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Message Cause and corrective measures

NUW-dI
MSD-Fac
MSD-Vac
MSD-Timeout

Internal measurement comparison fault or the hardware is defective.

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

offset Fault in recording measured values

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

PowerBalance Three inverters are connected to a three-phase feed-in unit to prevent

unbalanced loads.
The parameter „PowerBalancer“ is set to the operating modes

„PhaseGuard“ or „FaultGuard“ (description of the operating modes
of the SMA Power Balancer, see Section section 4.5).

REL_INV_CLOSE
REL_GRID_CLOSE

One of the grid relays does not close. The inverter checks the relays
which connect the inverter to the electricity grid before the inverter
feeds in to the electricity grid.

If the grid relays do not function properly, the inverter will not connect
to the electricity grid.

Corrective measures:

• Contact the SMA Service Line.

REL_INV_OPEN
REL_GRID_OPEN

One of the grid relays does not open. The inverter checks the relays
which connect the inverter to the electricity grid before the inverter
feeds in to the electricity grid.

If the grid relays do not function properly, the inverter will not connect
to the electricity grid.

If this message is displayed frequently, permanent shutdown will be
triggered.

Corrective measures:

• Rectify the fault using a communication product.

• If the fault cannot be rectified using a communication product,
contact the SMA Service Line.

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Message Cause and corrective measures

Earthfault The electrical insulation between the PV plant and earth is defective.

The resistance between the positive or negative DC connection and
earth is outside the permissible range.

Corrective measures:

• Ensure that the PV plant is insulated correctly.

• Ensure th at the re is no earth fault Check ing th e PV Plant for Earth
Faults.

Riso-Sense The insulation measurement has failed.

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

ROM The inverter firmware is faulty.

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

SD-DI converter The inverter has detected an insulation fault on the DC side.

Corrective measures:

• Ensure that the PV plant is insulated correctly.

• Ensure th at the re is no earth fault Check ing th e PV Plant for Earth
Faults.

SD-Imax The inverter has detected an overcurrent on the AC side. The inverter

di sco nne cts from the el ect ric ity gri d fo r sa fety reas ons and afterwards
tries to reconnect to the grid.

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

SD-WR- Bruecke The inver ter has detected a fault in the power electronics. The inverter

di sco nne cts from the el ect ric ity gri d fo r sa fety reas ons and afterwards
tries to reconnect to the grid.

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

Shutdown Temporary inverter fault

Corrective measures:

• Contact the SMA Service Line.

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Message Cause and corrective measures

STM Timeout Internal program run fault

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

Vac-Bfr
Vac-Srr

The mains voltage is no longer within the permissible range. The
inverter has disconnected from the electricity grid for safety reasons.
This can be caused by one of the following:

• The miniature circuit-breaker is switched off.

• The AC cable is interrupted.

• The AC cable is highly resistive.

Corrective measures:

• Ensure that the AC cable is correctly connected.(see section

6.3.2 "Connecting the Inverter to the Electricity Grid", page 35)

• Ensure that the mains voltage is in the permissible range.

• Ask the network operator for permission to change the
parameters Uac-Min and Uac-Max.

If the AC cable is connected correctly, the mains voltage is within the
permissible range and this message is still displayed, contact the
SMA Service Line.

UpvMax
Upv-Max

Overvoltage at DC input
The inverter may be destroyed.

Corrective measures:

• Disconnect the miniature circuit-breaker.

• Remove the ESS.

• Unlock and remove all DC connectors. To do so, insert a slotted
screwdriver (blade width: 3.5 mm) into one of the side slots and
pull the DC connectors straight down. DO NOT PULL ON THE
CABLE whilst doing this.

• Ensure that the DC voltage is in the permissible range.

• If the DC voltage is above the maximum input voltage of the
inverter, check the PV plant design or contact installer of the
PV array.

• If the DC voltage is below the maximum input voltage of the
inverter, connect the DC connectors to the inverter again.

• If this message is repeated frequently, disconnect the inverter
(see section 9) and contact the SMA Service Line.

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Message Cause and corrective measures

UZWK-Max
UzwkMax

The internal hardware monitoring system has detected an
overvoltage in the intermediate circuit of the inverter.

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

Watchdog
Watchdog Srr

Internal program run fault

Corrective measures:

• If this message is displayed frequently, contact the
SMA Service Line.

10.3 Cleaning the Fans

Proceed as follows to clean each fan.

1. Disconnect the inverter from all voltage sources (see section 9).

2. Wait for the fans to stop rotating.

3. Check whether the fan guard is dusty or heavily soiled.
If the fan guard is dusty, clean the fan guard with a vacuum cleaner.
If the fan guard is heavily soiled, remove the fan guard and clean it:

• Use a screwdriver to push the two detents at

the right-hand edge of the fan guard to the
right-hand side and remove them from the
retainer.

• Carefully remove the fan guard.

• Clean the fan guard with a soft brush, a paint brush, a cloth or compressed air.

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4. Check whether the fan is soiled.
If the fan is soiled, remove the fan:

• Use a screwdriver to push the two detents at

the right-hand edge of the fan guard to the
right-hand side and remove them from the
retainer.

• Carefully remove the fan guard.

• Push the detents of the fan towards the middle

of the fan.

• Remove the fan slowly from the inverter.

• Unlock and remove the fan plug.

5.

Damage to the fan due to compressed air

• Clean the fan with a soft brush, a paint brush, or a damp cloth.

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6. Insert the plug of the fan into the socket until it
clicks into place.

7. Insert the fan into the inverter until the fan audibly clicks into place.

8. Push the fan guard into the retainer until it audibly clicks into place.

9. Recommission the inverter (see section 8).

10. Check the fan to ensure that it is functioning (see section 10.4).

10.4 Checking the Fans

There are two ways to check the function of the fans:

• Using a communication product to set the parameters

or

• Inserting a jumper in the inverter

Using a Communication Product to Set the Parameters

1. Open the user interface of the data logger or software.

2. Enter the installer password.

3. Select the parameter Fan-Test and set it to 1 or Fan test and set it to On.

4. Check whether air is coming out of the ventilation grids and whether the fans are making any
unusual noises.

If there is no air coming out of the ventilation grids or the fans are making unusual noises, then
presumably the fans were not installed properly. Check the fan installation.

If the fans were installed correctly, contact the SMA Service Line.

5. Select the parameter Fan-Test and set it to 0 or Fan test and set it to Off.

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Plugging the Jumper

1. Disconnect the inverter from all voltage sources (see section 9).

2. Insert the jumper in the slot 150V at the
right-hand side next to the display.

3. Commission the inverter (see section 8 "Commissioning", page 51).

4. Check whether air is coming out of the ventilation grids and whether the fans are making any
unusual noises.

If there is no air coming out of the ventilation grids or the fans are making unusual noises, then
presumably the fans were not installed properly. Check the fan installation.

If the fans were installed correctly, contact the SMA Service Line.

5. Disconnect the inverter from all voltage sources (see section 9).

6. Remove the jumper from the slot 150V at the right-hand side next to the display.

7. Commission the inverter (see section 8 "Commissioning", page 51).

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10.5 Cleaning the Ventilation Grids

1. Remove the ventilation grids towards the side.

2.

Damage to the inverter due to foreign bodies

• Do not remove the ventilation grids permanently, other wise foreign bodies could enter into
the enclosure.

3. Clean the ventilation grids with a soft brush, a paint brush, or compressed air.

4. Close the recessed grips with the ventilation
grids. Ensure the assignment is correct. Each
ventilation grid is assigned to an enclosure side
on the inside: "links/left" for the left-hand side
and "rechts/right" for the right-hand side.

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10.6 Checking the ESS for Wear

Depending on the design of the ESS, you can recognise wear either on the metal mounting tabs or on
the plastic of the ESS.

1. Remove the ESS.

2. Check the metal mounting tabs or plastic inside the ESS.

The metal mounting tabs and plastic must not be
discoloured or damaged.

The ESS is worn if the metal mounting tabs have brown discolouration or are burnt out or the
plastic is damaged. That prevents the ESS disconnecting the PV array reliably. Order a new ESS
and replace the damaged ESS (see section 13 "Accessories", page 91).

3.

Risk of fire due to tightening the screw within the ESS

A perfect contact between the ESS and the inverter is only guaranteed if the ESS plug remains
flexible.

• Do not tighten the screw in the plug of the ESS.

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4.

Damage to the inverter due to moisture and dust intrusion

If the ESS is not plugged in or incorrectly plugged in during operation, moisture and dust can
penetrate the inverter. If the ESS is not correctly plugged in, this can cause contacts in the ESS
to wear or the ESS might fall out of the socket. This can result in yield loss and damage to the
ESS.

Always plug in the ESS as follows:

• Firmly plug in the ESS until it is flush with the
enclosure.

• Ensure that the gap between the ESS and the
enclosure is no more than 1 mm.

5. Commission the inverter (see section 8 "Commissioning", page 51).

10.7 Checking the PV Plant for Earth Faults

EinlSatz_PV-Anlage auf Erdschluss prüfen

If the red LED is glowing and the inverter displays the message Riso, there is an earth fault in the
PV array. The electrical insulation between the PV plant and earth is defective or insufficient.

Danger to life due to electric shock

In the event of an earth fault, high voltages can be present.

• Only touch the insulation of the PV array cables.

• Do not touch any parts of the sub-structure or frame of the PV array.

• Do not connect PV strings with earth faults to the inverter.

Destruction of the measuring device due to overvoltage

• Only use measuring devices with a DC input voltage range up to at least 1,000 V.

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Proceed as follows to check each string in the PV plant for earth faults.

1. Disconnect the inverter from all voltage sources (see section 9).

2. Measure the voltages:

• Measure the voltages between the positive pole and the earth potential (PE).

• Measure the voltages between the negative pole and the earth potential (protective
conductor).

• Measure the voltages between the positive and negative pole.
If the following results are present at the same time, there is an earth fault in the PV plant.

– All measured voltages are stable.
– The s um o f th e two volt age s ag ain st t he e arth pot ent ial is a pproximately equal to the voltage

between the positive and negative poles.

• Determine the location of the earth fault via the ratio of the two measured voltages.

• Eliminate the earth fault.
If there is no earth fault and the message is still displayed, contact the SMA Service Line.

Example: Location of the earth fault

The example shows an earth fault between the second and third PV module.

3. Recommission the inverter (see section 8 "Commissioning", page 51).

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10.8 Checking the Function of the Varistors

If the red LED is flashing and the inverter displays the message Check Varistor, one of the varistors
may be defective. Check the function of each varistor as described in the following.

Position of the Varistors

Figure 15: Varistors inside the inverter

Item Designation

A Left-hand connection wire with loop

B Middle connection wire

CRight-hand connection wire

Destruction of the inverter due to overvoltage

If varistors are missing, the inverter is no longer protected against overvoltage.

• Do not operate the inverter without varistors in plants with a high risk of overvoltages.

• Do not recommission the inverter until the defective varistors have been replaced.

Destruction of the measuring device due to overvoltage

• Only use measuring devices with a DC input voltage range up to 1,000 V.

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1. Disconnect the inverter from all voltage sources (see section 9).

2. Use a multimeter to measure whether there is a
conductive connection between the middle
connection wire and the right-hand connection
wire.

If there is no conductive connection, the varistor is defective. SMA Solar Technology AG
recommends replacing all varistors immediately.

• Order new varistors and insertion tools (see section 13 "Accessories", page 91).

• If new varistors are available, replace all varistors (see section 10.9).
If a conductive connection is present, contact the SMA Service Line.

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10.9 Replacing the Varistors

Proceed as follows to replace each varistor.

1. Disconnect the inverter from all voltage sources (see section 9).

2. Insert the insertion tool into the clamp contacts of
the connecting terminal plate.

3. Remove the varistor from the connecting terminal
plate.

4. Insert the new varistor into the terminals. For this
purpose, insert the connection wire with loop into
the left-hand terminal.

5. Remove the insertion tool from the contacts of the connecting terminal plate.

6. Commission the inverter (see section 8 "Commissioning", page 51).

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10.10 Checking the Function of the String Fuses

If the red LED i s flas hing a nd the inve rte r displays the mes sage DC fuse, at least one o f the string fuses
may have tripped or be defective. Each string fuse is assigned to one string.

Figure 16: Assignment of the string fuses to the strings

Check the function of each string fuse as described below.

1. Disconnect the inverter from all voltage sources (see section 9).

2. Remove the string fuse with the fuse extractor
from the fuse holder.

3. Remove the string fuse from the fuse extractor.

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4. Use a continuity tester to measure whether the
string fuse is conductive.

If the string fuse is not conductive, the string fuse is defective. Replace all string fuses
immediately.

• Order a new string fuse (see section 13 "Accessories", page 91).

• Have all strings with defective string fuses checked by the installer of the PV array.

Co mmi ssi on t he i nverte r af ter t he stri ngs have been c hec ked (s ee section 8 "Commissioning",
page 51).

• If new string fuses are available, replace all string fuses (see section 10.11).

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10.11 Replacing the String Fuses

Requirements:

☐ A retrofit kit with five string fuses and five fuse extractors must be available.
☐ All string fuses must be removed.

Damage to the inverter due to string fuse burn-off

It cannot be guaranteed that commercially available string fuses will function correctly. In the event
of an error, the string fuses can burn off.

• Install only string fuses available from SMA Solar Technology AG in the inverter.

Proceed as follows to replace each string fuse:

1. Disconnect the inverter from all voltage sources (see section 9).

2. Insert a new string fuse in a new fuse extractor.

3. Insert the fuse extractor with the string fuse in the
fuse holder.

4. Commission the inverter (see section 8 "Commissioning", page 51).

10.12 Cleaning the Inverter

Damage to the display by use of cleaning agents

• If the inverter is dirty, clean the enclosure lid, the display and the LEDs using only clean water
and a cloth.

Installation Manual SMC9-11TLRP-IA-en-51 79

11 Decommissioning SMA Solar Technology AG

11 Decommissioning

11.1 Dismounting the Inverter

1. Disconnect the inverter from all voltage sources (see section 9).

2. Remove the AC cable from the inverter.

3. If a data cable is connected, remove the data cable from the inverter.

4. If the SMA Power Balancer is connected, remove the cable of the SMA Power Balancer.

5. Close the inverter:

• Attach one conical spring washer to each
screw. The grooved side of the conical spring
washer must point to the screw head.

• Secure the enclosure lid with screws in the
sequence 1 to 6 (torque: 6 Nm).

☑ The teeth of the conical spring washers are pushed into the enclosure lid. This ensures that

the enclosure lid is earthed.

6. Remove the ventilation grids laterally.

80 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 11 Decommissioning

7. Loosen the screws between the inverter and the
wall mounting bracket on both sides.

8. If the inverter is protected against theft, loosen
the safety screws.

9. Remove the inverter by lifting it up vertically and
out of the wall mounting bracket. Use the side
re ces sed g rips or a s tee l rod (di amet er: m axim um
30 mm). Transport the inverter horizontally.

11.2 Packing the Inverter

1. Remove the cable glands from the inverter.

2. Remove the ESS.

3. Pack the inverter, cable glands and ESS. Use the original packaging or packaging that is suitable
for the weight and dimensions of the inverter (see section 12 "Technical Data", page 82).

11.3 Disposing of the Inverter

• Dispose of the inverter in accordance with the locally applicable disposal regulations for
electronic waste.

or

Return the inverter at your own cost to SMA Solar Technology AG (see section 14 "Contact",
page 92). Label the package "ZUR ENTSORGUNG" ("FOR DISPOSAL").

Installation Manual SMC9-11TLRP-IA-en-51 81

12 Technical Data SMA Solar Technology AG

12 Technical Data

12.1 DC/AC

12.1.1 Sunny Mini Central 9000TL with Reactive Power Control

DC Input

Maximum DC power at cos φ = 1 9,300 W

Maximum input voltage

MPP voltage range 333 V … 500 V

Rated input voltage 350 V

Minimum input voltage 333 V

Start input voltage 400 V

Maximum input current 28 A

Maximum input current per string

Number of independent MPP inputs 1

Strings per MPP input 5

* The maximum open-circuit voltage that can occur at a cell temperature of − 10°C must not exceed the maximum input voltage.

** Maximum permitted current which may flow via one DC connector

*

**

700 V

28 A

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SMA Solar Technology AG 12 Technical Data

AC Output

Rated power at 230 V, 50 Hz 9,000 W

Maximum apparent AC power 9,000 VA

Rated grid voltage 230 V

Nominal AC voltage 220 V / 230 V / 240 V

AC voltage range 180 V … 265 V

Nominal AC current at 220 V 40 A

Nominal AC current at 230 V 40 A

Nominal AC current at 240 V 37.5 A

Maximum output current 40 A

Total harmonic factor of the output current with
total harmonic factor of the AC voltage < 2%,
and AC power > 50% of the rated power

Rated power frequency 50 Hz

AC power frequency 50 Hz / 60 Hz

Operating range at AC power frequency 50 Hz 44 Hz … 55 Hz

Operating range at AC power frequency 60 Hz 54 Hz … 65 Hz

Displacement power factor, adjustable 0.8

Feed-in phases 1

Connection phases 1

Overvoltage category according to
IEC 60664-1

overexcited

≤3%

… 0.8

III

underexcited

Efficiency

Maximum efficiency, n

European weighted efficiency, n

Installation Manual SMC9-11TLRP-IA-en-51 83

max

EU

97.7%

97.3%

12 Technical Data SMA Solar Technology AG

12.1.2 Sunny Mini Central 10000TL with Reactive Power Control

DC Input

Maximum DC power at cos φ = 1 10,350 W

Maximum input voltage

*

MPP voltage range 333 V … 500 V

Rated input voltage 350 V

Minimum input voltage 333 V

Initial input voltage 400 V

Maximum input current 31 A

Maximum input current per string

**

Number of independent MPP inputs 1

Strings per MPP input 5

* The maximum open-circuit voltage that can occur with − 10°C cell temperature must not exceed the maximum input voltage.

** Maximum permitted current allowed through one DC connector

700 V

31 A

84 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 12 Technical Data

AC Output

Rated power at 230 V, 50 Hz 10,000 W

Maximum apparent AC power 10,000 VA

Rated grid voltage 230 V

AC nominal voltage 220 V / 230 V / 240 V

AC voltage range 180 V … 265 V

Nominal AC current at 220 V 44 A

Nominal AC current at 230 V 44 A

Nominal AC current at 240 V 41.7 A

Maximum output current 44 A

Total harmonic factor of the output current with
total harmonic factor of the AC voltage < 2%,
and AC power > 50% of the rated power

Rated mains frequency 50 Hz

AC mains frequency 50 Hz / 60 Hz

Operating range at AC mains frequency 50 Hz 44 Hz … 55 Hz

Operating range at AC mains frequency 60 Hz 54 Hz … 65 Hz

Displacement power factor, adjustable 0.8

Feed-in phases 1

Connection line conductor 1

Overvoltage category in accordance with
IEC 60664-1

overexcited

≤3%

… 0.8

III

underexcited

Efficiency

Maximum efficiency, n

European weighted efficiency, n

Installation Manual SMC9-11TLRP-IA-en-51 85

max

EU

97.7%

97.2%

12 Technical Data SMA Solar Technology AG

12.1.3 Sunny Mini Central 11000TL with Reactive Power Control

DC Input

Maximum DC power at cos φ = 1 11,400 W

Maximum input voltage

*

MPP voltage range 333 V … 500 V

Rated input voltage 350 V

Minimum input voltage 333 V

Initial input voltage 400 V

Maximum input current 34 A

Maximum input current per string

**

Number of independent MPP inputs 1

Strings per MPP input 5

* The maximum open-circuit voltage that can occur with − 10°C cell temperature must not exceed the maximum input voltage.

** Maximum permitted current allowed through one DC connector

700 V

34 A

86 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 12 Technical Data

AC Output

Rated power at 230 V, 50 Hz 11,000 W

Maximum apparent AC power 11,000 VA

Rated grid voltage 230 V

AC nominal voltage 220 V / 230 V / 240 V

AC voltage range 180 V … 265 V

Nominal AC current at 220 V 48 A

Nominal AC current at 230 V 48 A

Nominal AC current at 240 V 45.8 A

Maximum output current 48 A

Total harmonic factor of the output current with
total harmonic factor of the AC voltage < 2%,
and AC power > 50% of the rated power

Rated mains frequency 50 Hz

AC mains frequency 50 Hz / 60 Hz

Operating range at AC mains frequency 50 Hz 44 Hz … 55 Hz

Operating range at AC mains frequency 60 Hz 54 Hz … 65 Hz

Displacement power factor, adjustable 0.8

Feed-in phases 1

Connection line conductor 1

Overvoltage category in accordance with
IEC 60664-1

overexcited

≤3%

… 0.8

III

underexcited

Efficiency

Maximum efficiency, n

European weighted efficiency, n

Installation Manual SMC9-11TLRP-IA-en-51 87

max

EU

97.7%

97.2%

12 Technical Data SMA Solar Technology AG

12.2 General Data

Width ⨯ height ⨯ depth with

468mm ⨯ 653mm ⨯ 242mm

Electronic Solar Switch

Weight 35 kg

Length ⨯ width ⨯ height of packaging 390 mm ⨯ 800 mm ⨯ 580 mm

Transport weight 40 kg

Climatic category in accordance with

4K4H

IEC 60721-3-4

Environmental category Outdoors

Pollution degree outside the enclosure 3

Pollution degree inside the enclosure 2

Operating temperature range − 25°C … +60°C

Maximum permissible value for relative humidity,

100%

non-condensing

Maximum operating altitude above MSL 3,000 m

Typical noise emission for SMC 9000TLRP-10 ≤ 42 dB(A)

Typical noise emission for SMC 10000TLRP-10 ≤ 45 dB(A)

Typical noise emission for SMC 11000TLRP-10 ≤ 46 dB(A)

Power loss in night mode 0,15 W

Topology Transformerless

Cooling concept SMA OptiCool

Fan connection Designed for safe disconnection in accordance

with DIN EN 50178:1998-04

Degree of protection for electronics in

IP65

accordance with IEC 60529

Protection class in accordance with IEC 62103 I

88 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 12 Technical Data

12.3 Protective Devices

DC reverse polarity protection Short-circuit diode

DC disconnect device Electronic Solar Switch

DC overvoltage protection Thermally monitored varistors

AC short-circuit current capability Current control

Grid monitoring SMA Grid Guard 2.1

Maximum permissible fuse protection 80 A

Earth-fault monitoring Insulation monitoring: Riso > 280 k Ω

All-pole sensitive residual-current monitoring unit Available

12.4 Approvals

Country standard,
as per 11/2012

VDE 0126-1-1 ✓ ✓ ✓

VDE-AR-N 4105 ✓ ✓ ✓

UTE C15-712-1 ✓ ✓ ✓

C10/C11 ✓ ✓ ✓

PPDS ✓ ✓ ✓

RD 1663 ✓ ✓ ✓

RD 661 ✓ ✓ ✓

EN 50438

GBT19939-2005 ✓ ✓ ✓

CGC GF001-2009 ✓ ✓ ✓

* EN 50438: Does not apply to all national variations of the standard.

*

SMC 9000TLRP-10 SMC 10000TLRP-10 SMC 11000TLRP-10

✓✓✓

12.5 Climatic Conditions

According to IEC 60721-3-4, Installation Type C, Class 4K4H

Extended temperature range − 25°C … +60°C

Extended humidity range 0% … 100%

Extended air pressure range 70.0 kPa … 106 kPa

According to IEC 60721-3-4, Transport Type E, Class 2K3

Temperature range − 25°C … +70°C

Installation Manual SMC9-11TLRP-IA-en-51 89

12 Technical Data SMA Solar Technology AG

12.6 Features

DC connection SUNCLIX DC connector

AC connection Screw terminal

Display LC text display

Bluetooth Optional

RS485, galvanically isolated Optional

12.7 Electronic Solar Switch

El ectr ical endu ran ce in the e ven t of a shor t circ uit ,
with a nominal current of 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 removed IP21

Fuse for the ESS F200, 600 V/4 A, fast acting

At least 50 switching processes

(soldered, non-replaceable)

12.8 Torques

Enclosure lid screws 6.0 Nm

Additional earth terminal 6.0 Nm

Cheese-head screw for securing the enclosure to
the wall mounting bracket

SUNCLIX swivel nut 2.0 Nm

Screw terminal AC connection 2.5 Nm

RS485 communication connection 1.5 Nm

6.0 Nm

12.9 Earthing Systems

TN-C system Suitable

TN-S system Suitable

TN-C-S system Suitable

TT system, if U

<30V Suitable

NPE

90 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG 13 Accessories

13 Accessories

STSatz_Zubehör

You will find the corresponding accessories and spare parts for your product in the following
overview. If required, these can be ordered from SMA Solar Technology AG or your specialist dealer.

Designation Brief description SMA order number

Bluetooth retrofit kit Bluetooth communication

interface

Electronic Solar Switch ESS as a spare part

In ser tion tool for repl ace men t of

Insertion tool for varistors SB-TVWZ

varistors

Replacement varistors Set with two

thermally-monitored varistors
incl. insertion tool

Ventilation grid Ventilation grid set "right and

left" as spare part

RS485 retrofit kit RS485 interface 485PB-SMC-NR

SMA Power Balancer Y cable Connecting cable for

SMA Power Balancer plug-in
system, 2⨯2m

String fuses, 8 A Retrofit kit with 5 x 8 A fuses

incl. fuse protection

String fuses, 10 A Retrofit kit with 5 x 10 A fuses

incl. fuse protection

String fuses, 12 A Retrofit kit with 5 x 12 A fuses

incl. fuse protection

String fuses, 16 A Retrofit kit with 5 x 16 A fuses

incl. fuse protection

String fuses, 20 A Retrofit kit with 5 x 20 A fuses

incl. fuse protection

SUNCLIX DC connector Field plug for conductor

cross-sections of

2.5 mm² … 6 mm²

* When ordering an Electronic Solar Switch, also indicate the serial number of the inverter.

BTPBINV-NR

ESS-HANDLE:04

MSWR-TV 7

45-7202

PBL-YCABLE-10

FUSEKIT 8A-NR

FUSEKIT 10A-NR

FUSEKIT 12A-NR

FUSEKIT 16A-NR

FUSEKIT 20A-NR

SUNCLIX-FC6-SET

*

Installation Manual SMC9-11TLRP-IA-en-51 91

14 Contact SMA Solar Technology AG

14 Contact

STSatz_Kontakt_Benötigte Daten

If you have technical problems concerning our products, 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

• Firmware version of the inverter

• Special country-specific settings of the inverter (if applicable)

•Type and number of the PV modules connected

• Installation location and installation altitude of the inverter

• LED signal and display message of the inverter

• Optional equipment, e.g. communication products

STSatz_Kontakt_Adresse

SMA Solar Technology AG

Sonnenallee 1
34266 Niestetal, Germany
www.SMA.de

SMA Service Line

Inverters: [phone]
Communication: [phone]
Fax: [phone]
E‑Mail: [e-mail]

92 SMC9-11TLRP-IA-en-51 Installation Manual

SMA Solar Technology AG Legal Restrictions

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 separate ly. Mi ssing de signa tions do not mean that a product 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. [phone]
Fax [phone]
www.SMA.de
E-Mail: [e-mail]

© 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 SMC9-11TLRP-IA-en-51 93

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