SMA SMC 6000TL Installation

EN

PV Inverter

SUNNY MINI CENTRAL 6000TL / 7000TL / 8000TL

Installation Guide

SMC6-8TL-IEN101040 | IME-SMCTL_60_70_80 | Version 4.0

SMA Solar Technology AG Table of Contents

Table of Contents

1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Scope of Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3 Explanation of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3.1 Symbols on the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3.2 Symbols on the Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2 Identifying the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 16

4.3 Mounting the Inverter with Wall Mounting Bracket . . . . . . . . . 18

5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.1 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 21

5.1.1 Exterior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.1.2 Interior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2 Connection to the public grid (AC). . . . . . . . . . . . . . . . . . . . . . 23

5.2.1 Conditions for the AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.2.2 Connecting the Inverter to the Public Grid (AC) . . . . . . . . . . . . . . . . . . . . . . 26

5.2.3 Additional Grounding of the Enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Installation Guide SMC6-8TL-IEN101040 3

Table of Contents SMA Solar Technology AG

5.3 Setting the Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.4 Connection of the PV Generator (DC) . . . . . . . . . . . . . . . . . . . 30

5.4.1 Conditions for the DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.4.2 Assembling the DC Plug Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.4.3 Opening the DC Plug Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4.4 Connecting the PV Generator (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.5 Connection of the SMA Power Balancer . . . . . . . . . . . . . . . . . 37

5.5.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.5.2 Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.5.3 Testing the Functioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.6 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.7 Setting the Grid and Country Parameters . . . . . . . . . . . . . . . . . 45

5.7.1 Setting the Installation Country . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5.7.2 Setting Stand-alone Grid Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1 Commissioning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.2 Self-Test in accordance with DK 5940, Ed. 2.2

(applies to Italy only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.2.1 Starting the Self-Test by Tapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.2.2 Completion of the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

7 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.2 Opening the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7.3 Closing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

8 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 57

8.1 Checking Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

8.1.1 Cleaning the Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

8.1.2 Checking the Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

8.1.3 Cleaning the Air Grills. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

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SMA Solar Technology AG Table of Contents

8.2 Checking the Electronic Solar Switch (ESS) for Wear . . . . . . . 60

9 Failure Search. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

9.1 Blink Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

9.2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

9.3 Red LED is Glowing Continuously. . . . . . . . . . . . . . . . . . . . . . . 68

9.3.1 Checking the PV Generator for a Ground Fault . . . . . . . . . . . . . . . . . . . . . . 68

9.3.2 Checking the Functioning of the Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

10 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

10.1 Dismantling the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

10.2 Packing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

10.3 Storing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

10.4 Disposing of the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

11 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

11.1 Sunny Mini Central 6000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

11.2 Sunny Mini Central 7000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

11.3 Sunny Mini Central 8000TL . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

13 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

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Table of Contents SMA Solar Technology AG

6 SMC6-8TL-IEN101040 Installation Guide

SMA Solar Technology AG Notes on this Manual

1 Notes on this Manual

1.1 Scope of Validity

This manual describes the assembly, installation, commissioning and maintenance of the following
SMA inverters:

• Sunny Mini Central 6000TL (SMC 6000TL)

• Sunny Mini Central 7000TL (SMC 7000TL)

• Sunny Mini Central 8000TL (SMC 8000TL)

Store this manual where it can be accessed at all times.

1.2 Target Group

This manual is for qualified personnel.. The tasks described in this manual may only be performed by
qualified personnel.

1.3 Additional Information

You will find further information on special topics such as designing a line circuit breaker or the
description of the operating parameters in the download area at www.SMA.de/en.

Refer to the user manual for detailed information on operating the inverter.

Installation Guide SMC6-8TL-IEN101040 7

Notes on this Manual SMA Solar Technology AG

1.4 Symbols Used

The following types of safety precautions and general information are used in this manual:

DANGER!

"DANGER" indicates a hazardous situation which, if not avoided, will result in death or
serious injury.

WARNING!

"WARNING" indicates a hazardous situation which, if not avoided, could result in death
or serious injury.

CAUTION!

"CAUTION" indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury!

NOTICE!

"NOTICE" indicates a situation that can result in property damage, if not avoided.

Information:

Information provides tips that are valuable for the optimal installation and operation of
your product.

☑ This symbol indicates the result of an action.

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SMA Solar Technology AG Safety

2 Safety

2.1 Appropriate Usage

The Sunny Mini Central is a PV inverter, which converts the DC current of the PV generator to AC
current and feeds it into the public grid.

Operating Principle of a PV System with Sunny Mini Central

The Sunny Mini Central may only be operated with PV generators (modules and cabling) of
protection class II. Do not connect any sources of energy other than PV modules to the Sunny Mini
Central.

Capacitive Discharge Currents

PV modules with large capacities relative to ground, such as thin-film modules with cells on
a metallic substrate, are only to be implemented if their coupling capacity does not exceed
1400 nF.

During grid feeding, a discharge current flows from the cells to ground. The amount of
current depends on the manner in which the modules are installed (e.g. foil on metal roof)
and on the weather (rain, snow). This "normal" discharge current may not exceed 50 mA
due to the fact that the inverter would otherwise automatically disconnect from the grid as
a protective measure. For further information on this subject, see the technical information
"Capacitive Discharge Currents" in the download area at www.SMA.de/en.

Installation Guide SMC6-8TL-IEN101040 9

Safety SMA Solar Technology AG

When designing the PV system, ensure that the values comply with the permitted operating range of
all components at all times. The free design program "Sunny Design" (www.SMA.de/en/
SunnyDesign) will assist you. The manufacturer of the PV modules must have approved the modules
for use with this Sunny Mini Central unit. You must also ensure that all measures recommended by the
module manufacturer for long-term maintenance of the module properties are taken (see also
Technical Information "Module Technology", in the download area of www.SMA.de/en).

Do not use the inverter for purposes other than those described here. Alternative uses, modifications
to the inverter or the installation of components not expressly recommended or sold by SMA Solar
Technology AG void the warranty claims and operation permission.

Certified Countries

The Sunny Mini Central 6000TL / 7000TL / 8000TL (with according configuration) fulfill the
requirements specified in the following standards and directives (dated: March/2010):

• VDE 0162-1-1 (02.2006)

• C10/C11 (05.2009) *

•PPDS

• PPC (02.2006)

• RD 1663/2000 (2000) **

• SS-EN 50438

• AS4777 (2005)

• IEC utility Meeting 216

• DK 5940 Ed. 2.2 (02.2006) (only applies to SMC 6000TL-IT / 7000TL-IT / 8000TL-IT)

• Kepco guide (02.2006) (only applies to SMC 8000TL-KR)

* Only possible when the phase voltage is 220 V.
** In the event of restrictions in certain regions, contact the SMA Serviceline

SMA Solar Technology AG can preset special grid parameters for other countries / installation
locations according to customer requests, after evaluation by SMA Solar Technology AG. You can
make later modifications yourself by changing software parameters with respective communication
products (e.g. Sunny Data Control or Sunny Explorer) (see section 5.7”Setting the Grid and Country
Parameters” (page45)). To change grid-relevant parameters, you need a personal access code - the
so-called SMA Grid Guard Code. The application form for the personal access code is located in the
download area at www.SMA.de/en, in the "Certificate" category for each inverter.

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SMA Solar Technology AG Safety

2.2 Safety Precautions

DANGER!

Danger to life due to high voltages in the inverter.

• All work on the inverter must be carried out by qualified personnel only.

• T he a ppl iance is not to b e us ed b y ch ildren o r pe rso ns w ith reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction.

• Children should be supervised to ensure that they do not play with the appliance.

DANGER!

Danger of burn injuries due to hot enclosure parts.

• Do not touch enclosure during operation.

• Only touch the lid during operation.

NOTICE!

Foreign objects or water entering the inverter can damage the device!

Once the Electronic Solar Switch has been pulled out, the inverter only provides protection
rating IP21. The inverter is then no longer protected against water and foreign objects. In
order to keep the protection rating IP65 during temporary decommissioning, proceed as
follows:

• Unlock and disconnect all DC connectors.

• Open all DC connectors and remove the wires.

• Close all DC inputs with the corresponding DC connectors and the sealing plug
provided.

• Securely attach the Electronic Solar Switch again.

Grounding the PV Generator

Comply with the local requirem ents for groundi ng the modules an d the PV generator. SMA
Solar Technology AG recommends connecting the generator frame and other electricity­conducting surfaces such that there is continuous conduction and to connect them to the
ground in order to reach maximum protection for property and persons.

Installation Guide SMC6-8TL-IEN101040 11

Safety SMA Solar Technology AG

2.3 Explanation of Symbols

This chapter contains an explanation of all symbols found on the inverter and type label.

2.3.1 Symbols on the Inverter

Symbol Explanation

Operation display.
Indicates the operation condition of the inverter.

Ground fault or varistor defective.
Read section 9.3”Red LED is Glowing Continuously” (page68).

Disturbance or fault
Read section 9”Failure Search” (page61).

Tap to switch on the display light and switch to the next display message.

Electronic Solar Switch (ESS) DC load disconnection unit

• When the Electronic Solar Switch is plugged in, the DC circuit is
closed.

• To interrupt the DC circuit and disconnect the inverter securely
under load, you have to first pull out the Electronic Solar Switch
and then remove all DC plug connectors , as described in section

7.2”Opening the Inverter” (page52).

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SMA Solar Technology AG Safety

2.3.2 Symbols on the Type Label

Symbol Explanation

Beware of dangerous electrical voltage.
The inverter operates at high voltages. All work on the inverter must be

carried out by qualified personnel only.

Beware of hot surface.
The inverter can become hot during operation. Avoid contact during

operation.

Observe all documentation that accompanies the inverter.

The inverter must not be disposed of with the household waste. For more
information on disposal, see section 10.4”Disposing of the Inverter”
(page73).

CE mark.
The inverter complies with the requirements of the applicable EC

guidelines.
The inverter is transformerless.

Direct Current (DC)

Alternating current (AC)

Protection rating IP65.
The inverter is protected against penetration by dust particles and water

jets from any angle.
RAL quality mark for solar products.
The inverter complies with the requirements of the German Institute for

Quality Assurance and Labeling.

Installation Guide SMC6-8TL-IEN101040 13

Unpacking SMA Solar Technology AG

3 Unpacking

3.1 Scope of delivery

Check the delivery for completeness and any visible external damage. Contact your dealer if anything
is damaged or missing.

Object Quantity Description
A 1 Sunny Mini Central
B 1 Air grills (right / left)
C 1 Wall mounting bracket
D 1 Electronic Solar Switch (ESS) DC load disconnection unit
E 8 DC plug connectors (4 x positive / 4 x negative)
F 8 Sealing plugs for DC plug connectors
G 1 Cable gland for AC connection:
H 1 Counter nut for cable gland at AC connection
I 1 Clamping clip for additional grounding
K 2 Tooth lock washers: 1 x for cover screws (replacement),

1 x for ground connection cable terminal

L 2 Cylinder head screws (M6x16): 1 x for lid (replacement),

1 x for ground connection cable terminal

M 2 Jumper (1x for fan test 1x for the cabling of the SMA Power Balancer)
N 2 Cylinder head screws (M6x8) for securing the inverter to the wall mounting

bracket

O 1 Silicone tube for insulating the SMA Power Balancer connection cable
P 1 Installation Guide
Q 1User Manual

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SMA Solar Technology AG Unpacking

Object Quantity Description
R 1 Set of documents with explanations and certificates
S 1 Supplementary sheet with inverter factory settings

3.2 Identifying the Inverter

You can identify the inverter by the type label. The type label is on the right side of the enclosure.
The serial number (Serial no.) and the type (Type / Model) of the product, as well as device-specific

characteristics are specified on the type label.

Installation Guide SMC6-8TL-IEN101040 15

Mounting SMA Solar Technology AG

4 Mounting

4.1 Safety

DANGER!

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 areas with a risk of explosion.

CAUTION!

Danger of burn injuries due to hot enclosure parts.

• Mount the inverter in such a way that it cannot be touched inadvertently.

CAUTION!

Risk of injury due to the heavy weight of the inverter.

• Take the inverter's weight of approx. 33 kg into account for mounting.

4.2 Selecting the Mounting Location

Consider the following points when selecting where to install:

• The installation method and mounting location must be suitable for the inverter's weight and
dimensions (see section 11”Technical Data” (page74)).

• Mount on a solid surface.

• The mounting location must at all times be clear and have safe access without the use of
additional aids such as scaffolding or lifting platforms. Any possible service actions are
otherwise limited.

• Vertical installation or tilted backwards by max. 45°.

• The connection area must point downward.

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SMA Solar Technology AG Mounting

• Never install the device with a forward tilt.

• Do not install horizontally.

• Install at eye level to allow operating modes to be read at all times.

• The ambient temperature should be below 40 °C to ensure optimal operation.

• Do not expose the inverter to direct sunlight to avoid a power reduction due to excessive
heating.

• In living areas, do not mount the unit on plasterboard walls or similar in order to avoid audible
vibrations. The inverter can make noises when in use which may be perceived as a nuisance in
a living area.

• Observe the minimum clearances to walls, other
inverters, or objects as shown in the diagram in
or der to gu ara ntee suf fic ien t heat di ssi pat ion and to
have enough space for removing the Electronic
Solar Switch.

Multiple inverters installed in areas with high ambient temperatures

There must be sufficient clearance between the individual inverters to ensure the cooling air
from the adjacent inverter flows freely.

If necessary, increase the clearances and make sure there is enough ventilation to ensure
sufficient cooling of the inverters.

Installation Guide SMC6-8TL-IEN101040 17

Mounting SMA Solar Technology AG

4.3 Mounting the Inverter with Wall Mounting Bracket

1. Mark the position of the drill holes using the wall mounting bracket and drill the holes. Use at
least 2 of the 6 holes, with one hole on the right and one on the left.

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SMA Solar Technology AG Mounting

CAUTION!

Risk of injury due to the heavy weight of the inverter.

The inverter weights approx. 33 kg.

• Attach the wall mounting bracket with the corresponding mounting material
(depending on the surface).

• U se t he s ide handles (ab ove and bel ow)
or a steel rod (maximum diameter of
30 mm) for transport and mounting. The
rod must be pushed through the
enclosure openings.

2. Secure the wall mounting bracket to the wall using
appropriate screws and washers.

3. Using the mounting hole, attach the inverter to the
rear panel of the enclosure in the wall mounting
bracket.

Installation Guide SMC6-8TL-IEN101040 19

Mounting SMA Solar Technology AG

4. Screw the inverter to the wall mounting bracket on
both sides using the screws (M6x8) provided.

Only tighten the screws hand-tight.

5. Check to ensure the inverter is firmly fastened.

6. Close the recessed grips with the air grills provided.
The air grills are marked "rechts/right" and "links/
left" on the interior for proper assignment.

The air grills prevent dirt and insects from entering
the device and, if necessary, can be reordered from
SMA Solar Technology AG (see section
13”Contact” (page85))

Optional Theft Protection

To protect the inverter against theft, the rear
panel can be secured to the wall at the bottom
using 2 single-use bolts.

The other two holes are spares.

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SMA Solar Technology AG Electrical Connection

5 Electrical Connection

NOTICE!

Electrostatic discharges can damage the inverter!

Internal components of the inverter can be irreparably damaged by static discharge.

• Ground yourself before touching a component.

5.1 Overview of the Connection Area

5.1.1 Exterior View

The following figure shows the assignment of the individual connection areas on the bottom of the
inverter.

Object Description
A DC connectors for connecting the PV strings
B Socket for connecting the Electronic Solar Switch (ESS) DC load disconnection unit
C Cable gland for optional communication via RS485 (PG16)
D Cable gland for grid connection (AC) (12 mm … 25 mm)
E Cable glands for SMA Power Balancer

Installation Guide SMC6-8TL-IEN101040 21

Electrical Connection SMA Solar Technology AG

5.1.2 Interior View

The following illustration shows the various components and connection areas of the open inverter.

Object Description
A Connection area and sockets for communication (page 44)
B Display
C Jumper for testing the fans (page 58)
D LEDs for displaying the operating modes (page 46)
E Jumper for SMA Power Balancer (page 37)

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SMA Solar Technology AG Electrical Connection

Object Description
F Connections terminals for SMA Power Balancer (page 37)
G Flat connector for grounding the cable shield when connecting the SMA Power

Balancer (page37)

H Connection terminals for mains cable (AC) (page 23)
I Cable glands for the SMA Power Balancer (page 37)
K Cable gland for grid connection (AC) (page 23)
L Cable gland for communication (page 44)
M Screwing device of shield clamp for communication cable (page 44)
N DC connectors (page 30)
O Connection socket for “Electronic Solar Switch (ESS)” DC load disconnection unit

(page 30)

P Male connector for grounding the cable shield for communication (page 44)
Q Varistors (page 69)

5.2 Connection to the public grid (AC)

5.2.1 Conditions for the AC Connection

Connection requirements of the utility operator

Always observe the connection requirements of your utility operator!

Cable Sizing

The conductor cross-section should be dimensioned in a way that output losses do not exceed 1 % at
nominal power. Use "Sunny Design" (www.SMA.de/en/SunnyDesign) for this.

The maximum cable lengths relative to the conductor cross-section are shown in the following table.

Conductor cross­section

10.0 mm² 25 m 22 m 19 m

16.0 mm² 41 m 35 m 31 m

Cut line losses in half

If three inverters with symmetrical feeding are combined to form a three-phase system, the
neutral conductor is not subjected to any load, and the line losses are halved. Thus, the
maximum possible cable length is doubled.

The conductor cross-sectional area required in individual cases depends on the following factors
among others:

• Ambient temperature,

•Routing method,

•UV resistance.

Installation Guide SMC6-8TL-IEN101040 23

SMC 6000TL SMC 7000TL SMC 8000TL

Maximum cable length

Electrical Connection SMA Solar Technology AG

Cable Requirements

Position Description Value
A External diameter 12 mm … 25 mm
B Conductor cross-section 10 mm² … 16 mm²
C Strip insulation Approx. 16 mm

Load Disconnection Unit

You must install a separate line circuit breaker for each inverter in order to ensure that the inverter
can be securely disconnected under load. The maximum permissible rating is located in section
11”Technical Data” (page74).

De tai led inf orm ati on and ex amp les for the rat ing of a l ine cir cuit breaker can be found in the Technical
Information "Line Circuit Breaker" in the SMA Solar Technology AG download area at
www.SMA.de/en.

DANGER!

Danger to life due to fire.

When more than one inverter is connected to the same line circuit breaker, the protective
function of the line circuit breaker is no longer guaranteed. It can result in a cable fire or
the destruction of the inverter.

• Never connect several inverters to the same line circuit breaker.

• Comply with the maximum permissible fuse protection of the inverter when selecting
the circuit breaker.

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DANGER!

Danger to life due to fire.

When a generator (inverter) and a consumer are connected to the same line circuit
breaker, the protective function of the line circuit breaker is no longer guaranteed. The
current from the inverter and the grid can accumulate to overcurrent, which is not detected
by the line circuit breaker.

• Never connect loads between the
inverter and the line circuit breaker
without protection.

• Always protect consumers separately.

NOTICE!

Damage to the inverter by using screw type fuse elements as a load
disconnection unit!

A screw type fuse element, e.g. D system (Diazed) or D0 system (Neozed) is not a load
disconnection unit, and thus may not be used as a load disconnection unit. A screw type
fuse element is only used as cable protection.

When disconnecting under load using a screw type fuse element, the inverter can be
damaged.

• U se o nly a lo ad disco nnec tin g sw itc h or a lin e ci rcu it b rea ker as a load disconnecting
unit.

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Electrical Connection SMA Solar Technology AG

5.2.2 Connecting the Inverter to the Public Grid (AC)

1. Check the grid voltage and compare with "V
The exact operating range of the inverter is specified in the operating parameters. The

corresponding document is available in the download area at www.SMA.de/en.

2. Switch off the line circuit breaker and secure it to prevent it from being reactivated.

3. Loosen all cover screws and remove the cover.

4. Remove tape on the AC enclosure opening
(see "D" on page 21).

5. Insert the AC screw clamp into the enclosure
opening from the outside and tighten it with the
counter nut from the inside.

6. Pull the cable through.

7. Connect L, N and the protective conductor (PE) to
the terminal blocks using a screwdriver in
accordance with the label.

To do this, the PE w ire must be 5 mm longe r th an the
L and N wires!

L and N must not be swapped.

" on the type label.

AC nom

8. Securely close the gland on the enclosure opening.

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9. Secure the lid with all screws and the
corresponding lock washers.

Tighten the screws with 6 Nm torque in the order
shown on the right hand side. The toothing of the
tooth lock washers must face toward the lid.

The inverter packing list includes another spare
screw and tooth lock washer.

DANGER!

Danger to life due to live lid.

The grounding of the enclosure lid is ensured by the tooth lock washers.

• Fasten the tooth lock washers for all 6 screws with the toothing facing toward the lid.

DANGER!

Danger to life due to high voltages in the inverter.

• Do not switch on the line circuit breaker until the inverter is securely closed and the
PV generator has been connected.

☑ The inverter is now connected to the public grid (AC).

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Electrical Connection SMA Solar Technology AG

5.2.3 Additional Grounding of the Enclosure

If a second protective conductor connection is required in the country of installation, you can also
ground the inverter using a second protective conductor on the connection terminal on the enclosure.

Procedure

1. Insert the stripped grounding cable (D) under the
clamping clip (C) (max. cross-section 16 mm²).

2. Screw the clamping clip tight with screw (A) and
tooth lock washer (B).

The toothing of the tooth lock washer must face
toward the clamping clip.

☑ The inverter's enclosure is additionally grounded.

You can ground multiple inverters as shown in the diagram below:

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5.3 Setting the Display Language

You can set the language of the display using the switches on the underside of the display assembly
inside the inverter.

Procedure

1. Open the inverter as described in section 7.2”Opening the Inverter” (page52).

2. Set the switches for the required language, as
shown below.

Language Switch S2 Switch S1

German B B
English B A
French A B
Spanish A A

For type SMC 6000TL-IT / 7000TL-IT / 8000TL-IT inverters, the following switch settings apply:

Language Switch S2 Switch S1

Italian B A
English A A

3. Close the inverter as described in section 7.3”Closing the Inverter” (page55).

☑ The display language is now set.

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Electrical Connection SMA Solar Technology AG

5.4 Connection of the PV Generator (DC)

5.4.1 Conditions for the DC Connection

Use of Adaptors

Adaptors (branch connectors) are not to be visible or freely accessible in the immediate
surroundings of the inverter.

• The DC current flow may not be interrupted via adaptors.

• Observe the procedure for disconnecting the inverter as described in section

7.2”Opening the Inverter” (page52).

• Requirements for the PV modules of the connected strings:
– Same type
–Same number
– Identical alignment
– Identical tilt

• The connecting cables from the PV modules must be fitted with plug connectors. You will find
the necessary DC plug connector for DC connection in the delivery.

• The following limiting values at the DC input of the inverter may not be exceeded:

Inverter Maximum input voltage Maximum input current

SMC 6000TL 700 V (DC) 19.0 A (DC)
SMC 7000TL 700 V (DC) 22.0 A (DC)
SMC 8000TL 700 V (DC) 25.0 A (DC)

DANGER!

Risk of lethal electric shock or fire.

The maximum possible input current per string is limited by the plug connectors used. If the
plug connector is overloaded, an electric arc may occur and there is a fire risk.

• Ensure that the input current for each string does not exceed the maximum flow
current of the plug connectors used.

The residual current breaker

The inverter is equipped with an integrated universal current sensitive residual-current
monitoring unit. The inverter can automatically differ between real fault currents and
"normal" capacitive leakage currents.

If an external RCD or residual current breaker is strictly required, you must use a switch that
triggers at a failure current of 100 mA or higher.

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5.4.2 Assembling the DC Plug Connectors

In order to connect to the inverter, all connecting cables of the PV modules must be equipped with the
DC plug connectors provided.

To assemble the DC plug connectors, proceed as detailed below. Ensure the plug connectors have
the correct polarity. The DC plug connectors are marked with "+" and " − ".

Cable requirements:

• Use a PV1-F cable.

Procedure

1. Insert the stripped cable into the plug connector as
far as it will go.

2. Pres s th e clampi ng c lip do wnward u nti l yo u hear an
audible click.

3. Ensure the cable is correctly in place.

Result Action

☑ If the conductors are visible in the hollow

cavity of the clamping clip, the cable is in
the correct position.

Installation Guide SMC6-8TL-IEN101040 31

• Proceed to step 4.

Electrical Connection SMA Solar Technology AG

Result Action

☑ If the conductor is not visible in the hollow

cavity of the clamp, the cable is not in the

• Loosen the clamping clip with the help of a
screwdriver.

correct position.

• Remove cable and start again from step 1.

4. Push the threaded joint to the thread and screw into place.

☑ The DC plug connectors are now assembled and can be connected to the inverters, as

described in section 5.4.4”Connecting the PV Generator (DC)” (page34).

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5.4.3 Opening the DC Plug Connectors

1. Screw the threaded joint off.

2. To release the plug connector, slot a screw driver
into the side catch mechanism and lever out.

3. Carefully pull the DC plug connector apart.

4. Loosen the clamping clip with the help of a
screwdriver.

5. Remove the cable.

☑ The cable is now removed from the DC plug connector.

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Electrical Connection SMA Solar Technology AG

5.4.4 Connecting the PV Generator (DC)

DANGER!

Danger to life due to high voltages in the inverter.

• Before connecting the PV generator, ensure that the line circuit breaker is switched
off.

NOTICE!

Excessive voltages can destroy the measuring device.

• Only use measuring devices with a DC input voltage range of at least 700 V.

1. Disconnect the line circuit breaker and secure against re-connection.

2. Pull the Electronic Solar Switch downward, slightly
toward the wall.

3. Check the connection cables of the PV modules for
co rre ct pola rit y an d that th e ma ximum in put vo lta ge
of the inverter is not exceeded.

At an ambient temperature higher than 10 °C, the
open circuit voltage of the PV modules must not be
more than 90 % of the maximum inverter input
voltage.

Otherwise, check the system design and the PV
mo dul e co nne cti on. If thi s is not don e, t he maximu m
inverter input voltage can be exceeded at low
temperatures.

NOTICE!

Destruction of the inverter due to overvoltage.

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

All warranty claims become void.

• Do not connect strings with an open circuit voltage greater than the maximum input
voltage of the inverter.

• Check the system design.

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4. Check the strings for ground faults, as described in section 9.3.1”Checking the PV Generator
for a Ground Fault” (page68).

5. Check the DC plug connector for correct polarity and connect it.
To release the plug connectors see section 7.2”Opening the Inverter” (page52).

6. To create the sealing on the inverter, all the DC
inputs that are not needed have to be closed as
follows:

– Insert the provided sealing plugs into the

unneeded DC plug connectors.
Do not insert the sealing plugs into the DC
inputs on the inverter.

– Insert the DC plug connectors with sealing plugs

in to t he c orre spo ndi ng D C inp uts on th e in ver ter .

7. Check the Electronic Solar Switch for wear, as
described in section 8.2”Checking the Electronic
Solar Switch (ESS) for Wear” (page60) and
attach it firmly.

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Electrical Connection SMA Solar Technology AG

NOTICE!

Manipulating the connector in the handle can damage the Electronic Solar
Switch.

The connector inside the handle must remain movable in order to ensure proper contact.
Tightening the screw voids all warranty claims and creates a fire risk.

• Do not tighten the connector screw in the Electronic Solar Switch handle.

NOTICE!

Damage to Electronic Solar Switch.

If not plugged correctly, the Electronic Solar Switch can be damaged by high voltages.

• Connect the holder firmly on to the socket of the Electronic Solar Switch.

• Make sure that the device is securely in place.

☑ The PV generator is now connected.

You can now commission the inverter as described in section 6”Commissioning” (page46).
The following connection possibilities are optional.

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5.5 Connection of the SMA Power Balancer

The Sunny Mini Central is equipped with the SMA Power Balancer as standard. This enables a circuit
connection of 3 Sunny Mini Central to a three-phase feed-in system.

Each of the 3 Sunny Mini Central devices in a group must be conne cte d to a diffe rent pha se conduc tor
of the low-voltage grid (L1, L2 and L3)!

By activating this circuit, you can stipulate how the other two Sunny Mini Central devices are to react
if there is a device fault with the third Sunny Mini Central or there is a grid voltage fault in its phase.

Three-phase grid connection

For further information on this subject, see the Technical Information "Three phase
connection with Sunny Mini Central" in the download area at www.SMA.de/en.

The connections for the SMA Power Balancer are galvanically isola ted from th e rest of th e Sunny Mini
Central circuit.

5.5.1 Configuration

The SMA Power Balancer is deactivated at the factory using the "PowerBalancer" parameter
(parameter setting = off) and can only be activated and configured using a communication device.
To change the "PowerBalancer" parameter, you need a personal access code - the so-called SMA
Gr id G uar d Co de. The app lic ati on f orm f or t he p ers ona l ac ces s code is located in the download area
at www.SMA.de/en, in the "Certificate" category for each inverter.

The configuration options are detailed below.

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Electrical Connection SMA Solar Technology AG

Configuration Options

There are 4 different configuration options for the "PowerBalancer" parameter.

Local connection requirements

Select the respective setting and always observe the local connection requirements and
provisions of your utility operator.

•FaultGuard

This operating mode enables the implementation of three-phase grid voltage monitoring that
also reacts to device failures.

– If one of the three inverters indicates a grid voltage fault and stops feeding in, the other

two inverters also disconnect from the grid immediately.

– If one of the three inverters indicates a device fault and stops feeding in, the other two

inverters also disconnect from the grid 5 minutes later.

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•PhaseGuard

This operating mode enables the implementation of three-phase grid voltage monitoring.
– If one of the three inverters indicates a grid voltage fault and stops feeding in, the other

two inverters also disconnect from the grid automatically.

– If one of the three inverters indicates a device fault and stops feeding in, the other two

inverters are not affected and continue to feed in at full power.

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Electrical Connection SMA Solar Technology AG

•Off

The SMA Power Balancer is deactivated (factory setting).
– In the event of a device fault or grid voltage fault at an inverter, only this inverter is

disconnected from the grid and the other two devices continue to run at an undiminished
power level.

•PowerGuard

This setting can be selected if the entire PV plant consists of only three 3 Sunny Mini Central
inverters and if, in the event of a failure, the unbalanced load should be limited to 5 kVA over
a 10-minute average.

Unbalanced load limitation for SMC 6000TL-IT / 7000TL-IT / 8000TL-IT
(applies exclusively to Italy)

For the Sunny Mini Central 6000TL-IT / 7000TL-IT / 8000TL-IT, the unbalanced load is
limited to 6 kVA.

– If one of the three inverters indicates a grid voltage fault or device fault and stops feeding

in, the other two inverters automatically limit their power to 5 kVA o ver a 10 minute average.

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5.5.2 Cabling

Cable Requirements

For cabling the SMA Power Balancer, use a "LiYCY" cable, structured as shown here:

• Indoor: LiYCY 2 x 2 x 0.25

• Outdoor: Li-2YCYv 2 x 2 x 0.25

Position Description
A Flexible insulation
B Shielding
C Twisted pair 2 (2 x 0.25 mm²)
D Twisted pair 1 (2 x 0.25 mm²)

Overview of the Connection Area

Object Description
A Screw terminals for the wire bridge
B Screw terminals for connecting the wires
C Jumper slot

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Electrical Connection SMA Solar Technology AG

Object Description
D PE connector
E Silicone tube / cable route
F Cable glands

Procedure

1. Open the inverter as described in section 7.2”Opening the Inverter” (page52).

2. Insert the cable into each inverter.
Use one of the two cable glands (F) on the right hand side.

DANGER!

Danger to life through high voltage if there is a fault with the SMA Power
Balancer cable.

• Sheath the positive and negative cable conductors in each inverter using the
enclosed silicone tube.

• Cut the silicone tube to the required length.

• The silicone tube must completely cover the cable inside the inverter enclosure.

3. Draw the cable along the cable route (E) as far as the terminal block (B).

4. Ground the cable shield in each inverter to the PE connector (D).

5. Sheath the positive and negative cable conductors in each inverter with end sleeves.

6. Connect the positive and negative pole to the
corresponding screw terminals.

7. In order to connect the three inverters together, connect the positive and negative conductors
from the two other inverters to the terminal block of the middle inverter.

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The cable length between two inverters may not exceed 300 m!

8. In the middle inverter only (with two wires for
each terminal), insert one of the jumpers provided
into the lowest of the three slots as shown on the
right.

Do not plug the jumpers into the lowest slot of the
two other inverters!

or

Bridge the "A" and "B" screw terminals on the
middle inverter with a wire bridge.

Do not bridge the "A" and "B" screw terminals in
the two other inverters!

9. Measure the resistance between the terminal
block's positive and negative poles in the middle
inverter.

☑ If the resistance is approximately 27.8 kOhms

(+/370 Ohms), the SMA Power Balancer has
been connected correctly. Otherwise, check the
cabling.

10. Close all inverters as described in section 7.3”Closing the Inverter” (page55).

Connection with one Sunny Mini Central 9000TL, 10000TL or 11000TL

In ord er t o be able to c onn ect the SMA Pow er B alancer wit h a S unn y Mi ni C ent ral 900 0TL,
10000TL or 11000TL, the Sunny Mini Central 6000TL, 7000TL oder 8000TL must be
equipped with a special plug. Three inverters are then connected together with a special
connection cable.

You can order the connection plug and the connection cable from SMA Solar Technology
AG or your dealer. Section 12”Accessories” (page84) contains a list of the order
numbers.

Installation Guide SMC6-8TL-IEN101040 43

Electrical Connection SMA Solar Technology AG

E-today 0Wh
Mode MPP

Disturbance

PowerBalance

Disturbance

Vac-Bfr

Disturbance

PowerBalance

5.5.3 Testing the Functioning

To test whether the SMA Power Balancer operates correctly, proceed as follows.

1. Select the "PhaseGuard" setting of the "PowerBalancer" parameter for all three inverters.

2. Check whether all inverters in the group are feeding the grid normally.
☑ If the green LED lights up steadily or if the

display message pictured opposite appears,
proceed with point 3.

or

☑ If all inverters in this group show the adjacent

display message: Check the installation of the
SMA Power Balancer and contact the SMA
Serviceline if necessary.

3. Switch off the line circuit breaker for one of the
three inverters.

• The inverter with a deactivated line circuit breaker
then indicates a grid voltage fault with the display
message shown opposite ("Bfr" and "Srr" are
irrelevant).

• The other two inverters then also disconnect
themselves from the grid with the display message
shown to the opposite.

• Both inverters subsequently switch to "Balanced"
mode.

☑ If the inverters react as described above, the

functionality test has been completed
successfully. Otherwise, check the
configuration.

4. If applicable, reset the "PowerBalancer" parameter to the desired setting in all inverters.

5. Switch on the line circuit breaker again.
☑ The functionality test has been completed.

5.6 Communication

The inverter is equipped with a slot for communication interfaces in orde r to communi cate wi th spec ial
data a cquisi tion de vices (e.g. Sunny WebB ox) or a PC with corr esponding software (e.g. Sunny Data
Control or Sunny Explorer).

See the respective communication interfa ce m anu al f or a d eta ile d cuircuit diagram and an installation
description for the interface.

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5.7 Setting the Grid and Country Parameters

Changing Grid-Relevant and Country Parameters

To change grid-relevant parameters, you need a personal access code - the so-cal led SM A
Grid Guard Code. The application form for the personal access code is located in the
download area at www.SMA.de/en, in the "Certificate" category for each inverter.

Ensure that you discuss the changes to these parameters with your utility operator.

A detailed description of the operating parameters for the inverter is available in the download area
at www.SMA.de/en in the category "Technical Description" of the respective inverter.

5.7.1 Setting the Installation Country

Using the "Default" parameter you can set the installation country and/or the grid connection
standard valid for the country via a communication device (e.g. Sunny WebBox) or a PC with
appropriate software (e.g. Sunny Data Control or Sunny Explorer). This, however, is only required if
the inverter was origi nally o rdered for an other c ountry . You ca n see the standar d to wh ich the invert er
was set upon delivery from the type label and the supplementary document provided with the factory
settings.

5.7.2 Setting Stand-alone Grid Operation

To operate the inverter in a Sunny Island system, you must set the inverter via the "Default" parameter
to off-grid ("OFF-Grid") operation.

You have several possibilities to set the inverter to stand-alone grid operation:

• Setting via Sunny WebBox
or

• Setting via Sunny Data Control or Sunny Explorer.

DANGER!

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

If you set the inverter to stand-alone grid operation, it does not fulfill any country-specific
standards and regulations. Therefore, if there is an outage of the public grid, there is a
danger of back-feed.

• Never operate the inverter directly on the public grid when set to stand-alone grid
operation.

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Commissioning SMA Solar Technology AG

6 Commissioning

6.1 Commissioning the Inverter

Self test in accordance with DK 5640, Ed. 2.2 for initial commissioning (applies
to Italy only)

The Italian DK 5940 standard requires that an inverter can first operate on the public grid
when the disconnection times for overvoltage, undervoltage, minimum frequency and
maximum frequency have been checked.

Restart the self-test as described in the following section 6.2”Self-Test in accordance with
DK 5940, Ed. 2.2 (applies to Italy only)” (page47). The test takes approx. 8 minutes.

1. Check the following requirements before commissioning:
– The inverter is firmly fastened.
– Correct connection of the AC cable (grid)
– Full connection of the DC cables (PV strings)
– DC inputs that are not needed are closed with the corresponding DC plug connectors and

sealing plugs.
– The enclosure lid is securely screwed in place
– Electronic Solar Switch is securely plugged
– The line circuit breaker is laid out correctly

2. Switch on the line circuit breaker.
☑ Green LED glows: commissioning has been successful.

or

☑ Green LED flashes when there is insufficient irradiation: network connection conditions have

not yet been reached. Wait for sufficient irradiation.

or

☑ The red or yellow LED is glowing or flashing: there has been an error. Proceed to step 3.

A Green LED Operation
B Red LED Ground fault or varistor

defective

C Yellow LED Disturbance

3. Read section 9”Failure Search” (page61) and if necessary eliminate the fault or disturbance.

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6.2 Self-Test in accordance with DK 5940, Ed. 2.2 (applies to Italy only)

6.2.1 Starting the Self-Test by Tapping

You can start the self-test by tapping on the enclosure lid. Prerequisite here is that the country
configuration of the inverter has been set to Italy (IT/DK5940) or "trimmed". Proceed as follows for
checking the disconnection times:

1. Connect the PV generator with the inverter. The inverter can only initialize if the PV generator
produces enough power. It is therefore not possible to test the disconnection times at night.

2. Connect the inverter on the AC side. For this, you have to create the AC connection (AC plug
or direct connection) and/or switch on the line circuit breaker of the grid cable (fuse or
automatic circuit breaker).

3. The inverter is now in the initialization phase, i.e. all 3 LEDs are glowing at the same time.
Start the self-test immediately after all 3 LEDS have gone out by tapping on the display of the

inverter.

4. The question on whether you would like to start the
test sequence appears in the display. Tap on the
display again within 30 seconds in order to confirm
the question.

Once you have started the test sequence, the inverter checks the disconnection times for overvoltage,
undervoltage, maximum frequency and minimum frequency one after the other. During the tests, the
inverter shows the values in the display which are described in section 6.2.2”Completion of the Self­Test” (page47).

6.2.2 Completion of the Self-Test

Note the values which are displayed during the self-test. These values must be entered into a test
pr oto col . Th e te st r esu lts of t he i ndi vid ual tes ts a re d isp lay ed 3 times one after the other. The respective
display appears for 10 seconds.

The self-test changes the upper and lower shut-down thresholds for each protective function on a
linear basis with a modification of 0.05 Hz/s and 0.05 Vn/s for the frequency and voltage
monitoring. As soon as the actual measurement value is outside the permitted range (altered shut­down threshold), the inverter disconnects itself from the grid. In this way, the inverter determines the
reaction time and checks itself.

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Commissioning SMA Solar Technology AG

Overvoltage Test

The inverter begins with the overvoltage test. During the
test sequence, the voltage limit applied is shown in the
display of the inverter.

The voltage limit is reduced successively until the shut­down threshold is achieved and the inverter disconnects
from the grid.

Once the inverter has disconnected from the grid, the
display successively shows the following values one after the other:

•Disconnection value,

•Calibration value,

•Reaction time,

• Present grid voltage.

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Undervoltage Test

After the overvoltage test, the inverter performs the
undervoltage test. During the test sequence, the current
calibration value of the voltage limit applied is shown in
the display of the inverter.

The voltage limit is increased successively until the shut­down threshold is achieved and the inverter disconnects
from the grid.

Once the inverter has disconnected from the grid, the display successively shows the following values
one after the other:

•Disconnection value,

•Calibration value,

•Reaction time,

• Present grid voltage.

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Commissioning SMA Solar Technology AG

Maximum Frequency

In the thi rd s tep , the inv ert er t est s th e ma xim um f requenc y.
During the test sequence, the frequency limit applied is
shown in the display of the inverter.

The frequency limit is reduced successively until the shut­down threshold is achieved and the inverter disconnects
from the grid.

Once the inverter has disconnected from the grid, the display successively shows the following values
one after the other:

•Disconnection value,

•Calibration value,

•Reaction time,

• Present grid frequency.

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Minimum Frequency

In the last step, the inverter tests the minimum frequency.
During the test sequence, the frequency limit applied is
shown in the display of the inverter.

The frequency limit is increased successively until the shut­down threshold is achieved and the inverter disconnects
from the grid.

Once the inverter has disconnected from the grid, the display successively shows the following values
one after the other:

•Disconnection value,

•Calibration value,

•Reaction time,

• Present grid frequency.

When the inverter has carried out the 4 tests, it switches to "MPP operation" mode. The original
calibration values are then re-set and the inverter automatically connects to the grid. If you would like
to carry out the test again, you have to disconnect the inverter, in other words you have to disconnect
it on the AC and DC sides and then later re-activate it. You can then restart the self-test as described
in the following section 6.2.1”Starting the Self-Test by Tapping” (page47). The inverter begins the
test sequence again, as described in section 6.2.2”Completion of the Self-Test” (page47).

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Opening and Closing SMA Solar Technology AG

7 Opening and Closing

7.1 Safety

DANGER!

Risk of lethal electric shock.

Observe the following before opening the inverter:

• Ensure the AC side is not live.

• Ensure the DC side is not live.

NOTICE!

Electrostatic discharges can damage the inverter!

Internal components of the inverter can be irreparably damaged by electrostatic
discharge.

• Ground yourself before touching a component.

7.2 Opening the Inverter

1. Disconnect the line circuit breaker and secure against re-connection.

2. Pull the Electronic Solar Switch downward, slightly
toward the wall.

3. Using a current probe, ensure that there is no
current to all DC cables.

☑ If there is a current present, check the

installation.

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4. Release all DC plug connectors with the help of a
screwdriver:

– Insert a screwdriver into one of the side slits (1).
– Lever the screwdriver upward (2) and pull out

the plug connector (3).

DANGER!

Danger to life due to high voltages in the inverter.

A secure separation from the PV generator is only guaranteed after pulling off the
Electronic Solar Switch and all DC plug connectors.

• Remove all DC plug connectors to
completely disconnect the PV generator
from the inverter.

DANGER!

Danger to life due to high voltages in the inverter.

The capacitors in the inverter require 5 minutes to discharge.

• Wait 5 minutes before opening the inverter.

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Opening and Closing SMA Solar Technology AG

5. Ensure that there is no voltage at the DC plugs at
the inverter.

☑ If there is a voltage present, check the

installation.

6. Loosen all 6 lid screws and pull the lid forward to
remove it.

7. Verify the absence of voltage L with respect to N at
the AC clamp with an appropriate meter.

☑ If there is a voltage present, check the

installation.

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8. Verify the absence of voltage L w ith respect to PE at
the AC clamp with an appropriate meter.

☑ If there is a voltage present, check the

installation.

☑ The inverter is now open and is not live.

7.3 Closing the Inverter

1. Secure the lid with the 6 screws and the
corresponding tooth lock washers.

Tighten the screws with 6 Nm torque in the order
shown on the right hand side. The toothing of the
tooth lock washers must face toward the lid.

The scope of delivery of the inverter includes
another spare screw and lock washer.

DANGER!

Danger to life due to live lid.

The grounding of the enclosure lid is ensured by the tooth lock washers.

• Fasten the tooth lock washers for all 6 screws with the toothing facing toward the lid.

1. Check the DC plug connector for correct polarity and connect it.
To release the plug connectors see section 7.2”Opening the Inverter” (page52).

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2. Close all unnecessary DC inputs as described in section 5.4.4”Connecting the PV Generator
(DC)” (page34) to seal the inverter.

3. Check the Electronic Solar Switch for wear, as
described in section 8.2  and attach it firmly.

NOTICE!

Manipulating the connector in the handle can damage the Electronic Solar
Switch.

The connector inside the handle must remain movable in order to ensure proper contact.
Tightening the screw voids all warranty claims and creates a fire risk.

•Do not tighten the connector screw in the Electronic Solar Switch handle.

NOTICE!

Damage to Electronic Solar Switch.

If not plugged correctly, the Electronic Solar Switch can be damaged by high voltages.

• Connect the holder firmly on to the socket of the Electronic Solar Switch.

• Make sure that the device is securely in place.

4. Switch on the line circuit breaker.

5. Check whether the display and the LEDs indicate
normal operating mode (see section
6”Commissioning” (page46)).

☑ The inverter is now closed and in operation.

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8 Maintenance and Cleaning

8.1 Checking Heat Dissipation

8.1.1 Cleaning the Fans

If the fan grills are only soiled with loose dust, they can be cleaned using a vacuum cleaner. If you do
not achieve satisfactory results with a vacuum cleaner, dismantle the fans for cleaning.

Procedure

1. Disconnect the inverter from both the DC and AC connections as described in section

7.2”Opening the Inverter” (page52).

2. Wait for the fans to stop rotating.

Cleaning the Air Grills

3. Remove the air grills:
– P res s th e tw o la tches on the rig ht e dge of t he f an

grill to the right using a screwdriver and loosen
it from the bracket.

– Carefully remove the air grill.

4. Clean the fan grills with a soft brush, a paint brush,
a cloth or pressurized air.

Cleaning the fan

5. Press the front latches backward and the rear latch
forward.

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6. Remove the fan by pulling it slowly and carefully downward.

7. Unlock and remove the plug.
The fan cables are long enough that you can lift the fans far enough out to disconnect the

internal plug in the inverter.

8. Remove the fan.

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

NOTICE!

Damage to the fan through the use of pressurized air.

• Do not use pressurized air to clean the fan. This can damage the fan.

10. After cleaning, assemble everything in reverse order.
☑ The fans are cleaned.

11. Check the function of the fans as described in the following section.

8.1.2 Checking the Fans

You can check that the fans are working in 2 ways:

• Set the "Fan-Test" parameter to "1" in the installer mode using Sunny Data Control,
Sunny Explorer or Sunny WebBox.

or

• Plug the provided jumper into the system control board.

Setting Parameters

1. Request the installer password from the SMA Serviceline (contact: see page 85).

2. Set the "Fan-Test" parameter to "1" in the installer mode.

3. Check the fans' air flow.
The inverter sucks air in from underneath and then blows it back out on the upper sides. Listen

for any unusual noise, which could indicate incorrect installation or that the fans are faulty.

4. After checking the fans, set the "Fan-Test" parameter back to 0.

☑ The test of the fans has been completed.

Plugging the Jumper

The inverter recognizes the jumper only after the system has been restarted (i.e. all LEDs must have
gone out before a restart).

1. Open the inverter as described in section 7.2”Opening the Inverter” (page52).

2. Plug the provided jumper in the slot on the system control board as shown below.

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3. Close the inverter as described in section 7.3”Closing the Inverter” (page55).

4. Check the fans' air flow.
The inverter sucks air in from underneath and then blows it back out on the upper sides. Listen

for any unusual noise, which could indicate incorrect installation or that the fans are faulty.

5. After checking the fans, remove the jumper. Open and close the inverter as described in section
7”Opening and Closing” (page52).

☑ The test of the fans has been completed.

8.1.3 Cleaning the Air Grills

The inverter sucks air in from underneath via the fan and blows it out again through the air grills on
the upper sides. Clean the air grills if they are dirty.

Procedure

1. Remove the air grills.
Insert your finger above in the space between the

air grills and the enclosure and remove the air grills
to the side.

2. Clean the air grills with a soft brush, a paint brush,
or pressurized air.

3. Re-attach the air grills to the inverter.
The air grills must be attached according to the

inside inscription ("links/left" and "rechts/right").

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NOTICE!

Risk of damage to the inverter if insects enter it!

• The air grills must not be removed permanently, because otherwise the device is not
protected against the entrance of insects!

8.2 Checking the Electronic Solar Switch (ESS) for Wear

Check the Electronic Solar Switch for wear before plugging it in.

Result Action

☑ The metal tongues inside the connector are

not damaged or discolored.

1. Securely attach the Electronic Solar Switch
handle.

2. Re-commission the inverter as described in
section 6”Commissioning” (page46).

☑ The metal tongues inside the connector

have a brown discoloration or are burned
through.

Th e El ectroni c So lar Switch c an n o longer rel iab ly
disconnect the DC side.

1. Replace the Electronic Solar Switch handle
before attaching it again (for the order
number see section 12”Accessories”
(page84).

2. Re-commission the inverter as described in
section 6”Commissioning” (page46).

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9 Failure Search

If the inverter displays other blink codes or error messages other than those described in the following
section, contact the SMA Serviceline

In the use r ma nual pro vid ed, you wil l al so find a des cri pti on o f the display messages during operation,
the status messages and measuring channels.

Do not try to carry out repairs other than those described here. Instead, use the SMA Solar
Technology AG 24-hour replacement service (the inverter will be ready for dispatch within 24 hours
and sent to a forwarding agency) and repair service

9.1 Blink Codes

Green Red Yellow Status

Glows continuously Is not glowing Is not glowing OK (feeding operation)

Glows continuously Is not glowing Ground fault or varistor

defective

Glows continuously OK (initialization)

Flashes quickly
(3 x per second)

Flashes slowly
(1 x per second)
Briefly goes out
(approx. 1 x per

second)
Is not glowing Is not glowing Is not glowing OK (disconnection)

Is not glowing Is not glowing OK (stop)
Glows continuously Is not glowing Ground fault or varistor

defective

Is not glowing Is not glowing OK (waiting, grid

monitoring)

Glows continuously Is not glowing Ground fault or varistor

defective

Is not glowing Is not glowing OK (derating)

Glows / flashes Disturbance

Glows continuously Is not glowing Ground fault or varistor

defective

Glows / flashes Ground fault or varistor

defective and disturbance

9.2 Error Messages

Wh en a dis tur ban ce o ccu rs, th e in verter generates a message, which dep end s on the ope rat ing mod e
and the type of disturbance detected.

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Message Description and corrective measure
!PV-Overvoltage!

!DISCONNECT DC!

Overvoltage at DC input.
Overvoltage can destroy the inverter.

Corrective measures

Disconnect the inverter from the grid immediately.

1. Turn off the line circuit breaker.

2. Remove the Electronic Solar Switch.

3. Disconnect all the DC plug connectors.

4. Check DC voltage:
– If the DC voltage exceeds the maximum input voltage, check the

plant design or contact the person who installed the PV
generator.

– If the DC voltage is under the maximum input voltage, reconnect

the inverter to the PV generator as described in section

5.4.4”Connecting the PV Generator (DC)” (page34).

If the message occurs again, disconnect the inverter again and contact
the SMA Serviceline (see section 13”Contact” (page85)).

ACVtgRPro The 10-minute-average grid voltage is no longer within the permissible

range. This can have the following causes:
The grid voltage at the connection point is too high.

• The grid impedance at the connection point is too high.

The inverter disconnects to assure compliance with the voltage quality of
the grid.

Corrective measures

Check the grid voltage at the connection point of the inverter:

• If, due to the local grid conditions, the grid voltage is 253 V or
more, ask the utility operator whether the voltage at the feed-in
point can be adjusted, or whether it would agree to an alteration of
the threshold value of the ACVtgRPro parameter to monitor the
voltage quality.

• If the grid voltage is continually within the acceptable range and
this error is still displayed, contact the SMA Serviceline

CAN Internal communication fault.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

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Message Description and corrective measure
Derating The "Derating" operating mode is a normal operating mode which may

occur occasionally and can have several causes.
If the inverter was in the "Derating" mode for at least 10 minutes, it will

display the "Derating" warning until the next total shutdown of the device
(at the end of the day).

Corrective measures

• Check heat dissipation, as described in section 8.1”Checking
Heat Dissipation” (page57).

dI-Bfr

dI-Srr

The inverter has detected a drastic change in the differential current. The
integrated differential current monitoring system plays an important part
in ensuring personal safety.

A drastic change in the differential current can be caused by a sudden
grounding fault, failure current or an actual fault in the device. The
inverter disconnects from the grid.

Corrective measures

• If the message "dI-Bfr" or "dI-Srr" appears for no obvious reason,
verify whether the plant insulation might have a ground fault, as
described in section 9.3.1”Checking the PV Generator for a
Ground Fault” (page68).

EEPROM Transition disturbance while data is being written or read from EEPROM.

The data is not relevant for safe operation
The disturbance has no effect on the performance of the inverter.

EEPROM dBh EEPROM data is defective, the device has switched off because the loss

of data has disabled important functions of the inverter.

Corrective measures

• Contact the SMA Serviceline

EeRestore One of the duplicate data sets in the EEPROM is defective and has been

reconstructed without loss of data.

• The error message only serves to inform you and has no effect on
the performance of the inverter.

Fac-Bfr

Fac-Srr

FacFast

The grid frequency is no longer within the permissible range ("Bfr" / "Srr"
/ "Fast" is an internal message of no relevance for the user). For safety
reasons, the inverter disconnects itself from the grid.

Corrective measures

• Check the grid connection and if necessary measure the grid
frequency.

• If the grid frequency is within the tolerance range, yet "Fac-Bfr",
"Fac-Srr" or "FacFast" faults are still being displayed, contact the
SMA Serviceline

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Message Description and corrective measure
Fault Curr Meas

Fault Curr Meas-Srr

Deviation in the differential current measurement / differential current
If this fault message is displayed repeatedly, it means that inverter

operation is permanently disabled.

Corrective measures

• Contact the SMA Serviceline

HW-Signal Internal measurement fault or hardware defect.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

Iac-DC_Offs-Srr A grid disturbance has occurred.

Corrective measures

• Check the grid conditions.

• Contact the SMA Serviceline if this problem occurs often or several
times in succession.

IGBTs The internal hardware monitoring system has detected a fault in the

power electronics.

Corrective measures

• Contact the SMA Serviceline

L<->N L and N are swapped on the AC connection.

Corrective measures

• Check the grid connection.

L-Netz

L-WR

N-Netz

A grid relay is faulty. The inverter checks the relays connecting it to the
grid before feeding power into the grid. If the grid relays do not function
properly, the inverter does not connect to the grid for safety reasons.

N-WR

Corrective measures

• If this fault message is displayed repeatedly, it means that inverter
operation is permanently disabled.

• If the inverter is equipped with a communication interface, try to
rectify the fault using a communication product.

• Should this be unsuccessful, contact the SMA Serviceline

MSD-dI Internal measurement comparison fault or hardware defect.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

MSD-Fac Internal measurement comparison fault or hardware defect.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

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Message Description and corrective measure
MSD-Vac Internal measurement comparison fault or hardware defect.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

MSD-Timeout Internal measurement comparison fault or hardware defect.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

Offset The "Offset" operating condition is a normal operating condition that

occurs prior to grid monitoring.
If "Offset" is displayed as an error, then there is a disturbance in the data

logging.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

PowerBalance The inverter is part of a three-phase system with two further inverters and

equipped with the SMA Power Balancer for preventing unbalanced
loads. The operating parameter "PowerBalancer" is set to "PhaseGuard"
or "FaultGuard".

Corrective measures

• For more detailed descriptions of the operation modes
"PhaseGuard" and "FaultGuard", please refer to section

5.5”Connection of the SMA Power Balancer” (page37).

Relais2
Relais4

A grid relay is faulty. The inverter checks the relays connecting it to the
grid before feeding power into the grid. If the grid relays do not function
properly, the inverter does not connect to the grid for safety reasons.

Corrective measures

• If this fault message is displayed repeatedly, it means that inverter
operation is permanently disabled.

• If the inverter is equipped with a communication interface, try to
rectify the fault using a communication product.

• Should this be unsuccessful, contact the SMA Serviceline

Riso The electrical insulation between the PV plant and ground is faulty. The

re sis tance be twe en the DC plu s and/or DC m inus con nec tion and ground
is outside the defined limit range.

Corrective measures

• Check the plant insulation.

• Check the plant for ground faults as described in section

9.3.1”Checking the PV Generator for a Ground Fault” (page68).

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Message Description and corrective measure
ROM The inverter's firmware is faulty.

Corrective measures

• Contact the SMA Serviceline

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

Corrective measures

• Check the plant insulation.

• Check the plant for ground faults as described in section

9.3.1”Checking the PV Generator for a Ground Fault” (page68).

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

from the grid for safety reasons and then attempts to reconnect to the
grid.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

SD-WR-Bruecke The inverter has detected a fault in the power electronics. It disconnects

from the grid and then attempts to reconnect to the grid. There could also
be a ground fault in the PV generator.

Corrective measures

• Check for ground faults in the PV generator as described in section

9.3.1”Checking the PV Generator for a Ground Fault” (page68).

• If this fault continues to occur, contact the SMA Serviceline

Shutdown Temporary inverter fault.

Corrective measures

• Contact the SMA Serviceline

STM Timeout Internal program run fault.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

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Message Description and corrective measure
Vac-Bfr

Vac-Srr

The grid voltage is no longer within the permissible range ("Bfr" or "Srr" is
an internal message of no relevance for the user). This code can be
caused by any of the following conditions:

• Grid disconnected (line circuit breaker, fuse),

•AC cable is broken or

• AC cable is highly resistive

For safety reasons, the inverter disconnects itself from the grid.

Corrective measures

• Check the grid current and grid connection on the inverter.

• If the grid voltage lies outside the acceptable range because of
local grid conditions, ask the utility provider if the voltage can be
adjusted at the feed-in point or if it would agree to changes in the
values of the monitored operational limits (operating parameters:
Vac-Min and Vac-Max).

• If the grid frequency is within the tolerable range, yet "Vac-Bfr," or
"Vac-Srr" faults are still being displayed, please contact the SMA
Serviceline

VpvMax Overvoltage at DC input. The inverter may be damaged.

Corrective measures

Immediately disconnect the inverter from the grid.

1. Turn off the line circuit breaker.

2. Remove the Electronic Solar Switch.

3. Disconnect all the DC plug connectors.

4. Check DC voltage:
– If the DC voltage exceeds the maximum input voltage, check the

plant design or contact the person who installed the PV
generator.

– If the DC voltage is under the maximum input voltage, reconnect

the inverter to the PV generator as described in section

5.4.4”Connecting the PV Generator (DC)” (page34).

If the message occurs again, disconnect the inverter again and contact
the SMA Serviceline (see section 13”Contact” (page85)).

UZWK-Max The internal hardware monitor has detected an overvoltage condition in

the intermediate circuit of the inverter.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

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Message Description and corrective measure
Watchdog

Watchdog-Srr

Internal program run fault.

Corrective measures

• If this fault occurs often, contact the SMA Serviceline

9.3 Red LED is Glowing Continuously

If the red LED of the status display is continuously on during operation, there is either a ground fault
in the PV generator or at least one of the varistors for the overvoltage protection is defective.

9.3.1 Checking the PV Generator for a Ground Fault

1. Disconnect the inverter from both the DC and AC connections as described in section

7.2”Opening the Inverter” (page52).

NOTICE!

Excessive voltages can destroy the measuring device.

• Only use measuring devices with a DC input voltage range up to at least 700 V.

2. Measure the voltages between the plus pole of an
individual string and minus pole of an individual
string against the ground potential.

☑ If voltage is found, there is a ground fault in the

corresponding string.

DANGER!

Risk of lethal electric shock.

If a ground fault occurs, the PV generator may carry high voltages.

• Do not touch the frame of the PV generator.

• Wait until no voltage can be measured.

• Do not connect strings with ground faults to the inverter.

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The approximate position of the ground fault can be determined from the ratio of the measured
voltages between plus against ground potential and minus against ground potential.

Example:

The ground fault is between the second and third module in this case.

3. Repeat step 2 for each string.

Result Action

☑ You have found a ground fault. • The installer of the PV generator must remedy the

ground fault in the affected string before you may
reconnect the string to the inverter.

•Do not reconnect the faulty string.

• Restart the inverter as described in section

7.3”Closing the Inverter” (page55), but without
reconnecting the faulty string.

☑You have found no ground fault. It is likely that one of the thermally monitored varistors is

defective.

• Check the varistors as described in section

9.3.2”Checking the Functioning of the Varistors”
(page69).

☑ The ground fault check is finished.

9.3.2 Checking the Functioning of the Varistors

Varistors are wearing parts. Their functional efficiency diminishes with age or following repeated
responses as a result of overvoltages. It is therefore possible that one of the thermally monitored
varistors has lost its protective function.

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Position of Varistors

You can determine the position of the varistors with the help of the illustration below.
Observe the following allocation of the

terminals:

• Terminal A: outer terminal (varistor
connection with loop [crimp])

• Terminal B: middle terminal

• Terminal C: outer terminal (varistor
connection without loop [crimp])

You can check the varistors as follows:

1. Open the inverter as described in section 7.2”Opening the Inverter” (page52).

2. Use a Multimeter to ensure that both varistors in the
installed state have a conducting connection
between connectors B and C.

Result Action

☑There is a conductive connection. There is probably a different fault in the inverter.

• Close the inverter as described in section

7.3”Closing the Inverter” (page55).

• Contact the SMA Serviceline (see section
13”Contact” (page85)).

☑There is no conductive

connection.

The respective varistor is defective and must be replaced.
Varistor failure is generally due to influences which affect

all varistors similarly (temperature, age, induced
overvoltage). SMA Solar Technology AG recommends
that you replace both varistors.

The varistors are specially manufactured for use in the
inverter and are not commercially available. You must
order replacement varistors directly from SMA Solar
Technology AG (see section 12”Accessories”
(page84)).

• To replace the varistors, proceed to step 3.

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NOTICE!

Destruction of the inverter due to overvoltage.

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

•Do not operate the inverter wi thout varistors in plants with a high risk of overvoltages.

• Replacement varistors should be obtained as soon as possible.

3. Insert an insertion tool into the openings of the
terminal contacts (1).

☑ This releases the terminals.
If you do not receive an insertion tool for operating

the terminal clamps with your replacement
varistors, please contact SMA Solar Technology
AG. As an alternative, the terminal contacts can be
operated using a 3.5 mm wide screwdriver.

4. Remove the varistor (2).

5. Insert new varistor (3).
The pole with the small loop (crimp) must be fitted

to terminal A (3) when remounting.

6. Close the inverter as described in section

7.3”Closing the Inverter” (page55).

☑ The check and replacement of the varistors is completed.

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Decommissioning SMA Solar Technology AG

10 Decommissioning

10.1 Dismantling the Inverter

1. Open the inverter as described in section 7.2”Opening the Inverter” (page52).

2. Remove all cables from the inverter.

3. Close the inverter with the 6 screws and the
corresponding tooth lock washers.

4. Remove the air grills from both sides.

5. Remove the two screws on the left and right side of
the inverter that attach it to the wall bracket.

6. Disconnect the anti-theft protection, if applicable.

7. Remove the inverter upward from the wall mounting
bracket.

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8. Use the side handles (above and below) or a steel
rod (maximum diameter 30 mm) to transport the
inverter. The rod must be pushed through the
enclosure openings.

☑ The inverter is dismantled.

10.2 Packing the Inverter

If possible, always pack the inverter in its original packaging. If it is no longer available, you can also
use an equivalent box. The carton must be completely closeable, have a handle system and be made
to support both the weight and size of the inverter.

10.3 Storing the Inverter

Store the inverter in a dry place where ambient temperatures are always between − 25 °C and
+60 °C.

10.4 Disposing of the Inverter

Dispose of the inverter at the end of its service life in accordance with the disposal regulations for
electronic waste which apply at the installation site at that time. Alternatively, send it back to SMA
Solar Technology AG with shipping paid by sender, and labeled "ZUR ENTSORGUNG"
("for disposal") (contact see page 85).

Installation Guide SMC6-8TL-IEN101040 73

Technical Data SMA Solar Technology AG

11 Technical Data

11.1 Sunny Mini Central 6000TL

DC Input

Maximum DC power at cos ϕ = 1 P
Maximum DC voltage * U
MPP voltage range U
DC nominal voltage U
Minimum DC voltage U
Start voltage, adjustable U
Maximum input current I

DC

DC max

PV

DC nom

DC min

PV Start

PV max

6,200 W

700 V

333 V … 500 V

350 V
330 V
400 V

19.0 A
Number of MPP trackers 1
Maximum number of parallel strings 4
Voltage ripple of input voltage U

pp

<10%

Internal consumption during operation < 10 W

* The maximum open circuit voltage, which can occur at a cell temperature of -10 °C, may not exceed the maximum input voltage.

AC Output

AC nominal power at 230 V AC, 50 Hz P
Maximum AC apparent power S
Nominal AC current I
Maximum output current I

AC nom

AC max

AC nom

AC max

Maximum fuse protection 50 A
Harmonic distortion of output current at

K

IAC

AC THD voltage < 2 %,
AC power > 0.5 AC nominal power

Nominal AC voltage U
AC voltage range U
AC grid frequency f
Operating range at AC grid frequency f

AC nom

AC

AC nom

AC

50 Hz: 45.5 Hz … 54.5 Hz

60 Hz: 55.5 Hz … 64.5 Hz
Power factor at nominal AC power cos ϕ 1
Supply phases 1
Connection phases 1
Overvoltage category as per
AUS/NZS 60950.1:2003
Overvoltage category as per EN 50178:1998 III

6,000 W

6,000 VA

27 A
27 A

< 3 %

220 V / 230 V / 240 V

180 V … 260 V

50 Hz / 60 Hz

II

74 SMC6-8TL-IEN101040 Installation Guide

SMA Solar Technology AG Technical Data

Test voltage (DC) 2.15 kV
Test surge voltage 4 kV
Surge testing voltage with serial interface 6 kV
Internal consumption in night mode 0.25 W

Mechanical data

Width x height x depth 468 mm x 613 mm x 242 mm
Weight 31 kg

Climatic Conditions

Extended temperature range * − 25 °C … +60 °C
Extended humidity range * 0 % … 100 %
Extended air pressure range * 79.5 kPa … 106 kPa
Temperature range ** − 25 °C … +70 °C
Operation temperature range − 25 °C … +60 °C
Maximum operating altitude above mean sea

3,000 m

level

* according to DIN EN 50178:1998-04, installation type C, class 4K4H
** according to DIN EN 50178:1998-04, transport type E, class 2K3

Features

Topology Transformerless
Cooling concept OptiCool
Fan connection Designed for safe disconnection

In accordance with DIN EN 50178:1998-04

General data

Protection rating in accordance with
DIN EN 60529

Protection class I
Noise emission (typical) ≤ 31 dB(A)

Installation Guide SMC6-8TL-IEN101040 75

IP65

Technical Data SMA Solar Technology AG

Protective equipment

All-pole DC switch-disconnector Electronic Solar Switch,

DC plug system SUNCLIX
DC overvoltage protection Thermally monitored varistors
Personal protection (R

> 1 M Ω ) Insulation monitoring

iso

Pole confusion protection Short circuit diode
AC short circuit protection Current control
All-pole AC disconnection unit Automatic disconnection device

SMA Grid Guard 2.1

Communication Interfaces

®

Bluetooth

Wireless Technology Optional

RS485, galvanically isolated Optional

Electronic Solar Switch

Electrical servic e life in the event of a short circuit,

A minimum of 50 switching operations

with a nominal current of 35 A
Maximum switching current 35 A
Maximum switching voltage 800 V
Maximum PV power 12 kW
Protection rating when plugged IP65
Protection rating when unplugged IP21

76 SMC6-8TL-IEN101040 Installation Guide

SMA Solar Technology AG Technical Data

Efficiency

Peak efficiency η
European efficiency η

Installation Guide SMC6-8TL-IEN101040 77

max

euro

98 %

97.7 %

Technical Data SMA Solar Technology AG

11.2 Sunny Mini Central 7000TL

DC Input

Maximum DC power at cos ϕ = 1 P

DC

Maximum DC voltage * UDC
MPP voltage range U
DC nominal voltage U
Minimum DC voltage U
Start voltage, adjustable U
Maximum input current I

PV

DC nom

DC min

PV Start

PV max

max

7,200 W

700 V

333 V … 500 V

350 V
330 V
400 V

22 A
Number of MPP trackers 1
Maximum number of parallel strings 4
Voltage ripple of input voltage U

pp

<10%

Internal consumption during operation < 10 W

* The maximum open circuit voltage, which can occur at a cell temperature of -10 °C, may not exceed the maximum input voltage.

AC Output

AC nominal power at 230 V AC, 50 Hz P
Maximum AC apparent power S
Nominal AC current I
Maximum output current I

AC nom

AC max

AC nom

AC max

Maximum fuse protection 50 A
Harmonic distortion of output current at

voltage < 2 %,

AC T

HD

K

IAC

AC power > 0.5 AC nominal power
Nominal AC voltage U
AC voltage range U
AC grid frequency f
Operating range at AC grid frequency f

AC nom

AC

AC nom

AC

50 Hz: 45.5 Hz … 54.5 Hz

60 Hz: 55.5 Hz … 64.5 Hz
Power factor at nominal AC power cos ϕ 1
Supply phases 1
Connection phases 1
Overvoltage category as per

AUS/NZS 60950.1:2003
Overvoltage category as per EN 50178:1998 III
Test voltage (DC) 2.15 kV
Test surge voltage 4 kV

7,000 W

7,000 VA

31 A
31 A

< 3 %

220 V / 230 V / 240 V

180 V … 260 V

50 Hz / 60 Hz

II

78 SMC6-8TL-IEN101040 Installation Guide

SMA Solar Technology AG Technical Data

Surge testing voltage with serial interface 6 kV
Internal consumption in night mode 0.25 W

Mechanical data

Width x height x depth 468 mm x 613 mm x 242 mm
Weight 32 kg

Climatic Conditions

Extended temperature range * − 25 °C … +60 °C
Extended humidity range * 0 % … 100 %
Extended air pressure range * 79.5 kPa … 106 kPa
Temperature range ** − 25 °C … +70 °C
Operation temperature range − 25 °C … +60 °C
Maximum operating altitude above mean sea

3,000 m

level

* according to DIN EN 50178:1998-04, installation type C, class 4K4H
** according to DIN EN 50178:1998-04, transport type E, class 2K3

Features

Topology Transformerless
Cooling concept OptiCool
Fan connection Designed for safe disconnection

In accordance with DIN EN 50178:1998-04

General data

Protection rating in accordance with
DIN EN 60529

Protection class I
Noise emission (typical) ≤ 33 dB(A)

IP65

Protective equipment

All-pole DC switch-disconnector Electronic Solar Switch,

DC plug system SUNCLIX
DC overvoltage protection Thermally monitored varistors
Personal protection (R
Pole confusion protection Short circuit diode
AC short circuit protection Current control
All-pole AC disconnection unit Automatic disconnection device

Installation Guide SMC6-8TL-IEN101040 79

> 1 M Ω ) Insulation monitoring

iso

SMA Grid Guard 2.1

Technical Data SMA Solar Technology AG

Communication Interfaces

Bluetooth Optional
RS485, galvanically isolated Optional

Electronic Solar Switch

Electrical servic e life in the event of a short circuit,

A minimum of 50 switching operations

with a nominal current of 35 A
Maximum switching current 35 A
Maximum switching voltage 800 V
Maximum PV power 12 kW
Protection rating when plugged IP65
Protection rating when unplugged IP21

Efficiency

Peak efficiency η
European efficiency η

80 SMC6-8TL-IEN101040 Installation Guide

max

euro

98 %

97.7 %

SMA Solar Technology AG Technical Data

11.3 Sunny Mini Central 8000TL

DC Input

Maximum DC power at cos ϕ = 1 P

DC

Maximum DC voltage * UDC
MPP voltage range U
DC nominal voltage U
Minimum DC voltage U
Start voltage, adjustable U
Maximum input current I

PV

DC nom

DC min

PV Start

PV max

max

8,250 W

700 V

333 V … 500 V

350 V
330 V
400 V

25 A
Number of MPP trackers 1
Maximum number of parallel strings 4
Voltage ripple of input voltage U

pp

<10%

Internal consumption during operation < 10 W

* The maximum open circuit voltage, which can occur at a cell temperature of -10 °C, may not exceed the maximum input voltage.

AC Output

AC nominal power at 230 V AC, 50 Hz P
Maximum AC apparent power S
Nominal AC current I
Maximum output current I

AC nom

AC max

AC nom

AC max

Maximum fuse protection 50 A
Harmonic distortion of output current at

voltage < 2 %,

AC T

HD

K

IAC

AC power > 0.5 AC nominal power
Nominal AC voltage U
AC voltage range U
AC grid frequency f
Operating range at AC grid frequency f

AC nom

AC

AC nom

AC

50 Hz: 45.5 Hz … 54.5 Hz

60 Hz: 55.5 Hz … 64.5 Hz
Power factor at nominal AC power cos ϕ 1
Supply phases 1
Connection phases 1
Overvoltage category as per

AUS/NZS 60950.1:2003
Overvoltage category as per EN 50178:1998 III
Test voltage (DC) 2.15 kV
Surge testing voltage 4 kV

8,000 W

8,000 VA

35 A
35 A

< 3 %

220 V / 230 V / 240 V

180 V … 260 V

50 Hz / 60 Hz

II

Installation Guide SMC6-8TL-IEN101040 81

Technical Data SMA Solar Technology AG

Surge testing voltage with serial interface 6 kV
Internal consumption in night mode 0.25 W

Mechanical data

Width x height x depth 468 mm x 613 mm x 242 mm
Weight 33 kg

Climatic Conditions

Extended temperature range * − 25 °C … +60 °C
Extended humidity range * 0 % … 100 %
Extended air pressure range * 79.5 kPa … 106 kPa
Temperature range ** − 25 °C … +70 °C
Operation temperature range − 25 °C … +60 °C
Maximum operating altitude above mean sea

3,000 m

level

* according to DIN EN 50178:1998-04, installation type C, class 4K4H
** according to DIN EN 50178:1998-04, transport type E, class 2K3

Features

Topology Transformerless
Cooling concept OptiCool
Fan connection Designed for safe disconnection

In accordance with DIN EN 50178:1998-04

General data

Protection rating in accordance with
DIN EN 60529

Protection class I
Noise emission (typical) ≤ 40 dB(A)

IP65

Protective equipment

All-pole DC switch-disconnector Electronic Solar Switch,

DC plug system SUNCLIX
DC overvoltage protection Thermally monitored varistors
Personal protection (R
Pole confusion protection Short circuit diode
AC short circuit protection Current control
All-pole AC disconnection unit Automatic disconnection device

82 SMC6-8TL-IEN101040 Installation Guide

> 1 M Ω ) Insulation monitoring

iso

SMA Grid Guard 2.1

SMA Solar Technology AG Technical Data

Communication Interfaces

Bluetooth Optional
RS485, galvanically isolated Optional

Electronic Solar Switch

Electrical servic e life in the event of a short circuit,

A minimum of 50 switching operations

with a nominal current of 35 A
Maximum switching current 35 A
Maximum switching voltage 800 V
Maximum PV power 12 kW
Protection rating when plugged IP65
Protection rating when unplugged IP21

Efficiency

Peak efficiency η
European efficiency η

Installation Guide SMC6-8TL-IEN101040 83

max

euro

98 %

97.7 %

Accessories SMA Solar Technology AG

12 Accessories

You will find the corresponding accessories and replacement parts for your product In the following
overview. If required, you can order these from SMA Solar Technology AG or your dealer.

Description Brief description SMA order number

SMA Power Balancer
plug

SMA Power Balancer
Ycable

Electronic Solar Switch ESS handle replacement part ESS-HANDLE:04
Air grills Air grill set "right and left" as spare part 45-7202
Replacement varistors Set of thermally monitored varistors (2 pcs.)

Insertion tool for
replacing the varistors

RS485 upgrade kit RS485 interface 485PB-SMC-NR
Bluetooth upgrade kit Bluetooth communication interface BTPBINV-NR
SUNCLIX DC plug

connectors

Upgrade kit to retrofit a Sunny Mini Central
Equipped with an SMA Power Balancer to
SMA Power Balancer Connector System

Connecting cable (2 x 2 m) for SMA Power
Balancer connector system

including insertion tool
Installation tool for varistors SB-TVWZ

Field connectors for conductor cross sections

2.5 mm² … 6 mm²

PBL-SMC-10-NR

PBL-YCABLE-10

MSWR-TV 7

SUNCLIX-FC6-SET

84 SMC6-8TL-IEN101040 Installation Guide

SMA Solar Technology AG Contact

13 Contact

If you have technical problems concerning our products, contact the SMA Serviceline We require the
following information in order to provide you with the necessary assistance:

• Inverter type

•Inverter serial number

• Type and number of PV modules connected

• Optional equipment, e.g. communication devices

• Blink code or display of inverter

SMA Solar Technology AG

Sonnenallee 1
34266 Niestetal, Germany
www.SMA.de

SMA Serviceline

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

Installation Guide SMC6-8TL-IEN101040 85

Contact SMA Solar Technology AG

86 SMC6-8TL-IEN101040 Installation Guide

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.

Exclusion of liability

The general terms and conditions of delivery of SMA Solar Technology AG shall apply.
The content of these documents is continually checked and amended, where necessary. However, discrepancies cannot be

excluded. No guarantee is made for the completeness of these documents. The latest version is available online at www.SMA.de
or from the usual sales channels.

Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the following:

• Damages during transportation

• Improper or inappropriate use of the product

• Operating the product in an unintended environment

• Operating the product whilst ignoring relevant, statutory safety regulations in the deployment location

• Ignoring safety warnings and instructions contained in all documents relevant to the product

• Operating the product under incorrect safety or protection conditions

• Altering the product or supplied software without authority

• The product malfunctions due to operating attached or neighboring devices beyond statutory limit values

• In case of unforeseen calamity or force majeure
The use of supplied software produced by SMA Solar Technology AG is subject to the following conditions:

• SMA Solar Technology AG rejects any liability for direct or indirect damages arising from the use of software developed by
SMA Solar Technology AG. This also applies to the provision or non-provision of support activities.

• Supplied software not developed by SMA Solar Technology AG is subject to the respective licensing and liability agreements
of the manufacturer.

SMA Factory Warranty

The current guarantee conditions come enclosed with your device. These are also available online at www.SMA.de and can be
downloaded or are available on paper from the usual sales channels if required.

Trademarks

All trademarks are recognized even if these are not marked separately. Missing designations do not mean that a product or brand
is not a registered trademark.

The Bluetooth
Solar Technology AG is under license.

SMA Solar Technology AG

Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
E-Mail: [e-mail]
© 2004 to 2010 SMA Solar Technology AG. All rights reserved

®

wor d mark and l ogos are registere d trademarks owned by Bl uetooth SIG, Inc. and an y use of suc h marks by S MA

Installation Guide SMC6-8TL-IEN101040 87

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