SMA CLCON-10, CLCON-S-10 Installation Manual

InstallationManual

SMA CLUSTER CONTROLLER

ClusterController-IA-en-15 | Version 1.5

ENGLISH

Legal Provisions

SMA Solar Technology AG

Legal Provisions

The information contained in these documents is property of SMA Solar Technology AG. Any
publication, whether in whole or in part, requires prior written approval by SMA Solar Technology
AG. Internal reproduction used solely for the purpose of product evaluation or other proper use is
allowed and does not require prior approval.

SMA Warranty

You can download the current warranty conditions from the Internet at www.SMA-Solar.com.

Software Licenses

The licenses for the software modules used with this product can be found on the supplied CD.

Trademarks

All trademarks are recognized, even if not explicitly identified as such. A lack of identification does
not mean that a product or symbol is not trademarked.

The BLUETOOTH® word mark and logos are registered trademarks of BluetoothSIG,Inc. and any
use of these marks by SMASolarTechnologyAG is under license.

Modbus® is a registered trademark of Schneider Electric and is licensed by the Modbus
Organization, Inc.

QR Code is a registered trademark of DENSO WAVE INCORPORATED.
Phillips® and Pozidriv® are registered trademarks of Phillips Screw Company.
Torx® is a registered trademark of Acument Global Technologies, Inc.

SMASolarTechnologyAG

Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
E-mail: [e-mail]
© 2004 to 2015SMASolarTechnologyAG. All rights reserved.

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SMA Solar Technology AG

Table of Contents

Table of Contents

1 Information on this Document ................................................. 6

1.1 Validity................................................................................................ 6

1.2 Target group....................................................................................... 6

1.3 Additional Information....................................................................... 6

1.4 Symbols .............................................................................................. 6

1.5 Typographies...................................................................................... 7

1.6 Nomenclature..................................................................................... 7

2 Safety......................................................................................... 8

2.1 Intended Use ...................................................................................... 8

2.2 Safety Information.............................................................................. 8

2.3 Supported Products............................................................................ 9

2.4 System Requirements ......................................................................... 10

3 Scope of Delivery...................................................................... 11

4 Product Description................................................................... 12

4.1 Cluster Controller ............................................................................... 12

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

4.3 LEDs..................................................................................................... 18

4.4 Display................................................................................................ 19

4.5 Keypad ............................................................................................... 20

5 Mounting ................................................................................... 22

5.1 Requirements for Mounting ............................................................... 22

5.2 Mounting the Cluster Controller........................................................ 23

6 Connection and Commissioning .............................................. 25

6.1 Overview of the Connection Area .................................................... 25

6.2 Functions of the Terminals and Pin Groups ...................................... 26

6.3 Cable Requirements........................................................................... 28

6.4 Performing Pin Coding....................................................................... 29

6.5 Preparing Connection Cables for Connection to Multipole Plugs .. 30

6.6 Connecting the Cluster Controller to the Voltage Supply................ 32

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SMA Solar Technology AG

6.7 Checking and Setting the Cluster Controller System Time............... 35

6.8 Connecting the Cluster Controller to a Speedwire Network .......... 36

6.9 Connecting the Cluster Controller to the LAN.................................. 38

6.10 Connecting USB Data Carriers to the Cluster Controller................. 39

6.11 Connecting Sensors to the Cluster Controller................................... 40

6.11.1 Connecting the Temperature Sensor............................................. 40

6.11.2 Connecting an Irradiation Sensor................................................. 43

6.11.3 Connecting Additional Sensors..................................................... 44

6.12 Connections for Grid Management Services................................... 47

6.12.1 Options for Implementing Grid Management Service Setpoints 47

6.12.2 Digital Setpoint Signal ................................................................... 48

6.12.2.1 Connection Options ................................................................ 48

6.12.2.2 Connecting a Signal Source to a Digital Input for Active

Power Limitation.......................................................................

6.12.2.3 Connecting a Signal Source to a Digital Input for Reactive

Power Setpoint.........................................................................

6.12.2.4 Digital Signal Setpoint when Using Multiple Cluster

Controllers................................................................................

6.12.3 Analog Setpoint Signal.................................................................. 54

6.12.3.1 Connecting a Signal Source to an Analog Input for Active

Power Limitation.......................................................................

6.12.3.2 Connecting a Signal Source to an Analog Input for

Reactive Power Setpoint..........................................................

6.12.3.3 Analog Setpoint Signal when Using Multiple Cluster

Controllers................................................................................

6.12.4 Setpoint via Modbus Client........................................................... 57

6.12.5 Feedback of the Cluster Controller ............................................... 57

6.12.5.1 Feedback Options................................................................... 57

6.12.5.2 Connecting a Remote Terminal for Feedback via Digital

Signal .......................................................................................

6.12.5.3 Connecting a Remote Terminal for Feedback via Analog

Signal .......................................................................................

6.12.5.4 Feedback When Using Multiple Cluster Controllers............. 63

6.13 Checking the Connections via the Display....................................... 64

6.14 Configuring a Static LAN................................................................... 65

6.15 Setting Up a Modbus Data Connection........................................... 65

49

51

53

54

55

56

58

59

7 Troubleshooting ........................................................................ 66

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Table of Contents

7.1 LED States........................................................................................... 66

7.1.1 Operation LEDs.............................................................................. 66

7.1.2 Network Port LEDs ......................................................................... 69

7.2 Errors in the Cluster Controller or the Connected Devices .............. 70

7.3 Resetting the Cluster Controller ......................................................... 74

8 Decommissioning...................................................................... 76

8.1 Disassembling the Cluster Controller ................................................ 76

8.2 Packing the Product for Shipment ..................................................... 76

8.3 Disposing of the Product.................................................................... 77

9 Technical Data........................................................................... 78

10 Accessories................................................................................ 82

11 Contact....................................................................................... 83

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1 Information on this Document

SMA Solar Technology AG

1 Information on this Document

1.1 Validity

This document is valid for the SMAClusterController (models "CLCON-10" and "CLCON-S-10")
from hardware versionA1 and from firmware version1.03.xx.R.

1.2 Target group

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

• Training in the installation and configuration of IT systems

• Knowledge of how an inverter works and is operated

• Training in how to deal with the dangers and risks associated with installing and using
electrical devices and installations

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

• Knowledge of the applicable standards and directives

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

1.3 Additional Information

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

Document title Document type

"SMASPEEDWIRE FIELDBUS" Technical Information

1.4 Symbols

Symbol Explanation

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

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

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

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

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

Indicates a requirement for meeting a specific goal

Desired result

A problem that might occur

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1 Information on this Document

1.5 Typographies

Typography Use Example

bold

>

[Button]
[Key]

• Display texts

• Elements on a user interface

• Terminals

• Elements to be selected

• Elements to be entered

• Connects several elements to be
selected

• Button or key to be selected or
pressed

• The value can be found in
the field Energy.

• Select Settings.

• Enter 10 in the field
Minutes.

• Select Settings > Date.

• Select [Next].

1.6 Nomenclature

Complete designation Designation in this document

Large-scale PV power plant PV system
PV inverter Inverter
SMAClusterController ClusterController
SMA Energy Meter Energy Meter

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2 Safety

SMA Solar Technology AG

2 Safety

2.1 Intended Use

The ClusterController is a device for monitoring and controlling SMAinverters with Speedwire/
Webconnect interfaces in decentralized PV systems and large-scale PV power plants.

The ClusterController is an ITE classA device as per EN55022 and is designed for industrial use.
The product is designed for indoor use only.
Use this product only in accordance with the information provided in the enclosed documentation

and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.

Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and
warranty claims and in most cases terminate the operating license. SMA Solar Technology AG
shall not be held liable for any damage caused by such changes.

Any use of the product other than that described in the Intended Use section does not qualify as
appropriate.

The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.

The type label must remain permanently attached to the product.

2.2 Safety Information

This section contains safety information that must be observed at all times when working on or with
the product.

To prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.

Danger to life due to electric shock from touching an ungrounded product

Touching an ungrounded product can cause a lethal electric shock.

• Ensure that the product is integrated in the existing overvoltage protection.

• Ground the enclosure of the product.

Damage to the product due to moisture

The product is not splash-proof (IP20). Moisture can penetrate the product and damage it.

• Only use the product in a dry, indoor environment.

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2.3 Supported Products

SMA Products

Availability of SMA products in your country

Not all SMA products are available in all countries. For information on whether an SMA
product is available in your country, visit the website of your country's SMA subsidiary at
www.SMA-Solar.com or contact your distributor.

The ClusterController can establish a connection to and display data on the following SMA
products that are equipped with Speedwire communication:

Inverters:

• All inverters with integrated or retrofitted Speedwire/Webconnect interface
Information on whether an inverter has an integrated Speedwire/Webconnect interface or can

be retrofitted with a Speedwire/Webconnect interface can be found on the inverter product
page at www.SMA-Solar.com.

Other products:

• SunnyPortal

• SMA Energy Meter

• SMAFuelSaveController

• SMAGridGate of device type "GRIDGATE-20" from firmware version1.0

• SMAPowerPlantController

Products from Other Manufacturers

2 Safety

Sensors:

• Irradiation sensors that can output a current signal in the range from 0mAto20mA

• Temperature sensors with a Pt100 measuring shunt or a Pt1000 measuring shunt

• Other sensors that can output a current signal in the range from 0mAto20mA or a voltage
signal in the range from −10V to+10V

Signal receivers and digital and analog signal sources:

• Signal sources with relay contacts

• Signal sources that provide digital output signals

• Signal sources that can output current signals in the range from 0mA to 20mA

• Signal sources that can output voltage signals in the range from −10V to+10 V

• Signal receivers that can process current signals in the range from 0mA to 20mA

Routers and network switches:

• Routers and network switches for Fast Ethernet with a data transfer rate of at least 100Mbit/s
All network components used must support the IGMP version 1 protocol (IGMPv1).

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2 Safety

Power supply units:

In addition to the top-hat rail power supply unit offered as an accessory (see Section10, page82
), the ClusterController supports power supply units with the following properties:

• Maximum output current including short circuit: 8A

• Maximum output apparent power: 100VA

• DC output voltage: 24V

• Nominal current: minimum 1.8A

SMA Solar Technology AG

2.4 System Requirements

Supported web browsers:

☐ MicrosoftInternetExplorer from version8
☐ MozillaFirefox from version3.6

Recommended display resolution:

☐ Minimum 1,024pixelsx768pixels

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3 Scope of Delivery

3 Scope of Delivery

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

Figure 1: Components included in the scope of delivery

Position Quantity Designation

A 1 ClusterController
B 1 Three-pole plug
C 1 Two-pole plug*
D 2 Five-pole plug
E 8 Six-pole plug**
F 2 Eight-pole plug
G 2 Coding element
H 20 Cable tie with caption field
I 8 Shield clamp with ring terminal lug
K 1 Ring terminal lug
L 1 Fastening screw
M 2 Washer
N 1 Tooth lock washer
O 1 Split lock washer
P 1 CD with product documentation
Q 1 Quick reference guide for commissioning and supplementary sheet

for noting down connected devices

* Reserved for future applications. Keep the plug in a safe place.

** Two of the eight plugs are reserved for future applications. Keep the twoplugs in a safe place.

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4 Product Description

SMA Solar Technology AG

4 Product Description

4.1 ClusterController

The ClusterController is a device for monitoring and controlling SMAinverters with Speedwire/
Webconnect interfaces in decentralized PV systems and large-scale PV power plants.

The ClusterController primarily performs the following tasks:

• Set-up of the Speedwire network

• Reading out, provision and administration of PV system data

• Configuring device parameters

• Feedback on current total active power of the system

• Implementation and feedback of grid operator setpoints for active power limitation and
reactive power operation under grid management services

• Implementation and feedback of setpoints for active power limitation when PV electricity is
directly marketed

• Sending e-mail alarms in the event of critical system statuses

• Sending the system data to an FTP server and/or the SunnyPortal Internet portal

• Performing updates for the ClusterController and the inverters

Figure 2: Design of the ClusterController

Position Designation

A LEDs
B Connection areas
C Keypad
D Display

Reading out, provision and administration of PV system data

The ClusterController is the central communication unit for the system and continuously reads out
the data of the devices in the system (e.g. inverters, sensors). The ClusterController then makes this
system data available via the display, user interface and Modbus data interface. In addition, the PV
system data can be displayed, evaluated and managed using Sunny Portal.

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4 Product Description

Configuring device parameters

You can configure specific parameters of individual devices or entire device classes via the user
interface of the ClusterController. You must be logged into the user group Installer on the
ClusterController. The device parameters that can be configured, if any, depend on the device and
the rights of the user group. You may only change grid-sensitive device parameters
(SMAGridGuard parameters) with the approval of the grid operator and using your personal
SMAGridGuard code.

Sending e-mail alarms in the event of critical system statuses

You have the option of receiving prompt information on critical system statuses via e-mail. The
ClusterController automatically sends a notification if alarm-related events occur in the system.

Feedback on current total active power of the system

You have the option of being informed of the total active power currently generated by the system
via an analog current output signal.

Implementation and feedback of grid operator setpoints for active power
limitation and reactive power operation under grid management services

With the ClusterController, as part of grid management services you can implement different grid
operator setpoints for active power limitation and reactive power operation of your system. The
ClusterController can implement the setpoints using open-loop control or closed-loop control.

For ClusterController systems without self-consumption and with direct limitation of active power
feed-in, the operating mode Open-loop control is used. In this operating mode, the
ClusterController can receive the setpoints either in the form of digital or analog signals, or via
Modbus. The different types of signal source can be combined so that, for example, the setpoints
for the active power limitation are received as digital signals and the reactive power setpoints are
received as analog signals: For ClusterController systems with self-consumption, the operating
mode Closed-loop control is used. In this operating mode, you can regulate the active power fed
in by the system at the grid-connection point and limit it e.g. to a fixed percentage value. In
agreement with your grid operator, you can use the user interface of the ClusterController to
configure which setpoints of the ClusterController are to be transmitted to the connected inverters
depending on the respective signal. In addition, you can use a digital response contact or an
analog current output signal to inform the grid operator of the setpoints (if any) for active power
limitation and reactive power operation that are currently being used in the system.

Implementation and feedback of setpoints for active power limitation when PV
electricity is directly marketed

The PV current generated by your system can be directly marketed. The ClusterController can
receive setpoints for active power limitation from the direct marketer as digital or analog signals or
via Modbus. The "CLCON-S-10" model provides a Modbus register for sending setpoints via
Modbus. The model "CLCON-10" provides two Modbus registers.
The ClusterController can provide feedback about the current feed-in power of the system to the
direct marketer via digital or analog signals. To avoid conflicts when different setpoints are used by
the grid operator and the direct marketer, the ClusterController always implements the setpoint that
more strongly limits the active power of the system.

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4 Product Description

SMA Solar Technology AG

Sending the system data to an FTP server and/or the SunnyPortal Internet
portal

The ClusterController can automatically send the system data that has been read out to an
arbitrary FTP server and/or the SunnyPortal Internet portal via the Internet. The ClusterController
establishes the connection to the FTP server and/or SunnyPortal e.g. via a router.

Performing updates for the ClusterController and the inverters

You have the option of performing updates for the Cluster Controller and the inverters in the system.
You can perform the updates automatically or manually. The update source can be the
SMAUpdate Portal or a USB data carrier with update files downloaded from the Internet.
Alternatively, you can also upload the update files directly from the computer via the user interface
of the ClusterController.

Figure 3: Decentralized large-scale PV power plant with ClusterController and implementation of grid operator
setpoints via open-loop control (example)

Position Designation

A PV Modules
B Module temperature sensor
C Inverter
D Outside temperature sensor

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Position Designation

E Irradiation sensor
F ClusterController
G SunnyPortal
H Router
I Ripple control receiver or remote terminal unit
K Grid station
L Control room
M Grid control room
N Utility grid

4 Product Description

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4 Product Description

SMA Solar Technology AG

Figure 4: Decentralized large-scale PV power plant with ClusterController and implementation of grid operator
setpoints via closed-loop control (example)

Position Designation

A PV Modules
B Module temperature sensor
C Inverter
D Outside temperature sensor
E Irradiation sensor
F ClusterController
G Industrial load
H SunnyPortal
I Router
K Ripple control receiver or remote terminal unit

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Position Designation

L Energy meter
M Control room
N Grid control room
O Grid station
P Utility grid

4 Product Description

4.2 Type Label

The type label clearly identifies the product. The type label can be found on the back of the
enclosure. You can read off the following data from the type label:

• Device type (Type)

• Serial Number

• Hardware version (Version)

• Model

• Device-specific characteristics

You will require the information on the type label to use the product safely and when seeking
customer support from Service (see Section11 "Contact", page83).

Symbols on the Type Label

Symbol Designation Explanation

C-Tick The product complies with the require-

ments of the applicable Australian
EMC standards.

CANICES-3(A)/
NMB-3(A)

IC marking The product complies with the require-

ments of the applicable Canadian
EMC standards.

Indoors The product is only suitable for indoor

installation.

FCC designation The product complies with the require-

ments of the applicable FCC stan­dards.

CE marking The product complies with the require-

ments of the applicable EU directives.

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4 Product Description

Symbol Designation Explanation

WEEE designation Do not dispose of the product together

with household waste but in accor­dance with the locally applicable dis­posal regulations for electronic waste.

Data matrix code 2Dcode for device-specific character-

istics

4.3 LEDs

Operation LEDs

LED Designation Explanation

Power LED Shows whether the ClusterController is starting or is in op-

eration (see Section7.1 "LED States", page66)

Status LED Shows the status of the ClusterController and the con-

nected devices as well as the communication status of the
system and the status of the grid management services
(see Section7.1 "LED States", page66)

Data carrier status
LED

Shows the status of the connected USB data carrier (see
Section7.1 "LED States", page66)

SMA Solar Technology AG

Network Port LEDs

Colors and functionality of the network port LEDs are not standardized

The colors and functionalities of the network port LEDs are not standardized. The colors used
by SMA for the link/activity LED and the speed LED as well as the corresponding
functionalities can deviate in products supplied by third-party manufacturers.

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Figure 5: Network port LEDs

4 Product Description

Position Designation Color Explanation

A Link/activity LED Green Shows the status and the activity of the network

connection (see Section7.1.2 "Network Port
LEDs", page69)

B Speed LED Yellow Shows the network connection speed (see Sec-

tion7.1.2 "Network Port LEDs", page69)

4.4 Display

The display shows information on the ClusterController and the connected devices as well as the
system status and the system configuration. The display contrast can be configured. The display
languages are "German" and "English". You can change the display language via the
ClusterController user interface.

Figure 6: ClusterController display (example)

Position Designation Explanation

A Title line Displays the title of the display view

The system time is always displayed.

B Data lines Displays text and numeric values

The numeric values for measurement or yield data are dis­played with units.

Overview of the Display Views

Display view Explanation

Start view Displayed when the ClusterController starts up; includes the current

firmware version of the ClusterController

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4 Product Description

Display view Explanation

System overview Displays the system status, the current daily yield, the nominal sys-

tem power and the current setpoints for active power and reactive
power

If no button on the keypad is pressed within five minutes, the Clus-

terController switches to the display view System overview.
Yield data Displays the yield data of the system
System status Displays the current system status

The number of inverters detected by the ClusterController and the

status of the inverters is displayed here.
ClusterController Displays the status and device information of the ClusterController

When a USB data carrier is inserted into USB port1, information on

the current memory usage of the USB data carrier will be displayed.
SunnyPortal settings Displays the configured upload frequency and the date of the last

successful data upload to SunnyPortal
Analog inputs Displays the analog inputs with the current level value and unit
Digital inputs Displays the digital inputs in binary form

The digital inputs are summarized in two groups here.
Meteorology Displays the measured values of the connected irradiation sensor

and the connected temperature sensors
Active power limitation Displays the current setpoint for active power limitation with the set-

point size and the date of the last configuration change
Reactive power setpoint Displays the current reactive power setpoint and the date of the last

configuration change
Grid management services Displays the setpoint type and the signal sources selected via the

ClusterController user interface for the grid management services
External communication Displays the settings for the LAN
Speedwire Displays the settings for the Speedwire network
Modbus settings Displays the Modbus settings with the activated network protocols

and the corresponding network ports
Settings Enables the display contrast to be changed and the ClusterCon-

troller to be partially or fully reset (see Section7.3, page74)

SMA Solar Technology AG

4.5 Keypad

Designation Explanation

Any button Activates the display illumination
Arrow buttons (◂▸▴▾) Changes display views and selects specific display lines

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Designation Explanation

[OK]
[ESC]
ⓘ

Confirms the selected action
Cancels the selected action
Opens the display view System status

4 Product Description

Installation Manual 21ClusterController-IA-en-15

5 Mounting

SMA Solar Technology AG

5 Mounting

5.1 Requirements for Mounting

Requirements for the mounting location:

Product can cause radio interference in living areas

The product is a device of ITE class A (EN55022) and can cause radio interference in living
areas.

• Take suitable measures for shielding radio waves when the ClusterController is used in the
vicinity of living areas.

☐ The mounting location must be indoors.
☐ The ambient conditions at the mounting location must be suitable for the operation of the

ClusterController (see Section9, page78).

☐ The mounting location must be protected against dust, moisture and corrosive substances.

Maximum permitted cable lengths:

☐ Observe the maximum cable length of 100 m each between any two nodes in the Speedwire

network and in the LAN.

☐ When connecting a digital or analog signal source (e.g. remote terminal unit, ripple control

receiver), observe the maximum cable length of 30 m from the ClusterController to the signal
source.

☐ When connecting a temperature sensor using the four-conductor connection technology,

observe the maximum cable length of 20 m from the ClusterController to the temperature
sensor.

☐ When connecting a temperature sensor using the two-conductor connection technology,

observe the maximum cable length of 2.5 m from the ClusterController to the temperature
sensor.

Minimum clearances:

☐ The minimum clearances must be maintained to ensure adequate heat dissipation.

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SMA Solar Technology AG

Figure 7: Minimum clearances

Permitted and prohibited mounting positions:

☐ The ClusterController must be mounted so that the ventilation slots face upward and

downward. This ensures optimum heat dissipation.

5 Mounting

Figure 8: Permitted and prohibited mounting positions

5.2 Mounting the ClusterController

Requirements:

☐ A top-hat rail must be available.
☐ The top-hat rail must 35 mm wide.

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5 Mounting

SMA Solar Technology AG

☐ In order to mount the ClusterController, the top-hat rail must be at least 26 cm long. When a

top-hat rail power supply unit is used, the top-hat rail must be correspondingly longer.

☐ The top-hat rail must be securely mounted on the wall or in the switch cabinet.

Procedure:

• Use the rear-side upper retainers to hook the
ClusterController into the upper edge of the top­hat rail and press down toward the top-hat rail.
This will hook the spring-mounted top-hat rail
locking mechanism on the ClusterController
onto the lower edge of the top-hat rail.

☑ The top-hat rail locking mechanism snaps into place.

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6 Connection and Commissioning

6.1 Overview of the Connection Area

Figure 9: Overview of the connection area

6 Connection and Commissioning

Position Quantity Designation Explanation

A 1 X1 Terminal for the voltage supply
B 1 – Terminal for grounding
C 1 1 USB port for exporting system data
D 1 2 USB port for updates
E 1 X2 Digital outputs
F 1 X3 Reserved for future applications
G 1 X4 Digital inputs
H 1 X5 Digital inputs
I 1 X8 Analog inputs
K 1 X7 Terminals for temperature sensors
L 1 X6 Analog outputs
M 2 X13, X14 Network ports for connecting the LAN

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6 Connection and Commissioning

Position Quantity Designation Explanation

N 2 X11, X12 Reserved for future applications
O 2 X9, X10 Network ports for connecting the inverters (Speed-

wire)

SMA Solar Technology AG

6.2 Functions of the Terminals and Pin Groups

The digital and analog terminals of the ClusterController are divided into pin groups. Each pin
group forms one of the digital or analog inputs or outputs. On the enclosure, the upper row of
contact pins is marked with A and the lower row is marked with B. The contact pins are counted
from left to right.

The division of terminals into pin groups and the functions of the pin groups are described in the
following table.

For the pin groups of terminals X2 and X6 there are several functions to choose from. You can find
all selectable functions on the user interface of the Cluster Controller. In the following table you can
find the factory-set function.

Terminal Pin group Pin Function

X1 – 1to 3 Voltage supply
X2 Digital output1

Relay A
Digital output2

Relay B
Digital output3

Relay C

X3 – – Reserved for future applications
X4 Digital input1 A1toA3 Signal 1 of 4 for the active power limita-

Digital input2 A4toA6 Signal 2 of 4 for the active power limita-

Digital input3 B1toB3 Signal 3 of 4 for the active power limita-

Digital input4 B4 to B6 Signal 4 of 4 for the active power limita-

A1toA3

A4toA6 Fault indicator contact for the status

B1toB3 Response contact for the current active

Fault indicator contact for the status Er-

ror

Warning or Error

power limitation in grid management ser­vices

tion in grid management services

tion in grid management services

tion in grid management services

tion in grid management services

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SMA Solar Technology AG

6 Connection and Commissioning

Terminal Pin group Pin Function

X5 Digital input5 A1toA3 Signal 1 of 4 for the reactive power set-

point in grid management services

Digital input6 A4toA6 Signal 2 of 4 for the reactive power set-

point in grid management services

Digital input7 B1toB3 Signal 3 of 4 for the reactive power set-

point in grid management services

Digital input8 B4toB6 Signal 4 of 4 for the reactive power set-

point in grid management services

X6 Analog current output1 A1toA3 Analog current output for feedback on

current active power limitation in grid
management services

Analog current output2 A4toA6 Analog current output for feedback on

current reactive power setpoint in grid
management services

Analog current output3 B1toB3 Analog current output for feedback on

the current total active system power (as
a percentage) based on the maximum
nominal system power

X7 Temperature input1 A1toA5 Analog input for connecting an external

temperature sensor

Temperature input2 B1toB5 Analog input for connecting a module

temperature sensor

X8 Analog current input1 A1toA4 Analog current input for connecting an ir-

radiation sensor or for measuring the ac­tive power feed-in at the grid-connection
point

Analog current input2 A5toA8 Analog current input for active power lim-

itation in grid management services or for
measuring the active power feed-in at the
grid-connection point

Analog current input3 B1toB4 Analog current input for reactive power

setpoint in grid management services or
for measuring the active power feed-in at
the grid-connection point

Analog voltage input 4 B5toB8 Analog voltage input for connecting a

sensor

X9, X10 – 1to 8 Network ports for connection to the in-

verters (Speedwire)

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6 Connection and Commissioning

Terminal Pin group Pin Function

X11, X12 – – Reserved for future applications
X13, X14 – 1to 8 Network ports for connection to LAN

SMA Solar Technology AG

6.3 Cable Requirements

UV resistance of connection cables

Connection cables to be laid outdoors must be UV-resistant or routed in a UV-resistant cable
channel.

Terminal Cable requirements

Grounding ☐ Conductor cross-section: 2.5mm²

☐ Maximum cable length: 30 cm

Voltage supply ☐ Number of insulated conductors: at least two

☐ Conductor cross-section: 0.2 mm² to 1.5 mm²
☐ Maximum cable length: 3 m

Digital inputs ☐ Number of insulated conductors: at least two

☐ Conductor cross-section: 0.2 mm² to 1.5 mm²
☐ Maximum cable length: 30 m

Digital outputs ☐ Number of insulated conductors: at least two

☐ Conductor cross-section: 0.2 mm² to 1.5 mm²
☐ Maximum cable length: 30 m

Analog inputs, analog out­puts and temperature inputs
(conductor)

Analog inputs (connection
cable)

Analog outputs (connection
cable)

☐ Conductor cross-section: 1.5mm²
☐ Cable length: 32 cm

☐ Number of insulated conductors: at least two
☐ Shielding: yes
☐ Conductor cross-section: 0.2 mm² to 1.5 mm²
☐ Maximum cable length: 30 m

☐ Number of insulated conductors: at least two
☐ Shielding: yes
☐ Conductor cross-section: 0.2 mm² to 1.5 mm²
☐ Maximum cable length: 3,000 m

Installation ManualClusterController-IA-en-1528

SMA Solar Technology AG

Terminal Cable requirements

Temperature inputs (connec­tion cable)

Inverter (Speedwire) ☐ Number of insulated conductor pairs and insulated conductor

LAN ☐ Number of insulated conductor pairs and insulated conductor

☐ Number of insulated conductors for tolerance ±2°C: at least

two

☐ Number of insulated conductors for tolerance ±0.5°C: at least

four
☐ Conductor cross-section: at least 4 x 0.25 mm²
☐ External cable diameter: 4.5 mm to 7.0 mm
☐ Maximum cable length for four-conductor connection

technology: 20 m
☐ Maximum cable length for two-conductor connection

technology: 2.5 m

cross-section: at least 2 x 2 x 0.22 mm²
☐ External diameter: the maximum external diameter depends on

the size of the cable gland or the conduit (see the installation

manual of the Speedwire/Webconnect interface)
☐ Cable type: 100BaseTx, from Cat5 with shielding S-UTP, F-UTP

or higher
☐ Plug type: RJ45 of Cat5, Cat5e, Cat6, Cat6a

Cat7 plugs cannot be used.
☐ Cable length between two nodes: max. 50 m with patch cable,

max. 100 m with installation cable

cross-section: at least 2 x 2 x 0.22 mm²
☐ Cable type: 100BaseTx, from Cat5 with shielding S-UTP, F-UTP

or higher
☐ Plug type: RJ45 of Cat5, Cat5e, Cat6 or Cat6a. Cat7 plugs

cannot be used.
☐ Cable length between two nodes: max. 50 m with patch cable,

max. 100 m with installation cable

6 Connection and Commissioning

6.4 Performing Pin Coding

Pin coding prevents confusion when using multipole connectors, e.g. in the event of removal and
later re-insertion of a multipole plug. Using the coded pins, you can be sure of inserting a multipole
plug into the correct terminal. Tip: perform pin coding for all multipole connections now, even if you
do not wish to use all multipole connections at this point. Then you will not need to perform pin
coding later for the multipole connections that you are not currently using.

Code the pins correctly

When selecting the pins to be coded, be sure to code different pins for each terminal and for
each pin row.

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6 Connection and Commissioning

Procedure:

1. Insert one of the coding tabs on the coding
element, parallel to the conductor axis, into the
pin to be coded.

2. Remove the coding tab from the coding element
by snapping it off.

3. On the multipole plug, remove the key from the
conductor entry that will receive the coded pin
when connected to the ClusterController.

SMA Solar Technology AG

6.5 Preparing Connection Cables for Connection to Multipole Plugs

Always proceed as follows to prepare connection cables for connection to multipole plugs.

1. Strip 40 mm of cable sheath from the end of the connection cable to which the multipole plug
is to be attached.

2. Perform the following additional steps for the connection cables for the analog inputs, the
analog outputs and the temperature inputs:

• Trim the cable shield of the connection cable to 15 mm.

• Fold the surplus cable shield back over the
cable sheath.

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6 Connection and Commissioning

• Press the shield clamp onto the cable shield.
The cable shield must be clamped under
the shield clamp as completely as possible.

• Depending on the number of connection cables, split the wire required for shielding into
pieces with a length 40 mm.

• Remove 6 mm of the cable sheath and strip
off the insulation by 6 mm at both ends of
the insulated conductor.

• Insert the insulated conductor at one end of
the wire into the ring terminal lug of the
shield clamp and crimp with a crimping
tool.

3. Trim unneeded insulated conductors flush with the cable sheath.

4. Strip off the conductor insulation by 6 mm.

☑ The connection cable is prepared for connection

to the multipole plug.

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6 Connection and Commissioning

SMA Solar Technology AG

6.6 Connecting the ClusterController to the Voltage
Supply

Danger to life due to electric shock from touching an ungrounded product

Touching an ungrounded product can cause a lethal electric shock.

• Ensure that the product is integrated in the existing overvoltage protection.

• Ground the enclosure of the product.

Damage to the product due to condensation

If the product is moved from a cold environment to a warm environment, condensation may form
in the product.

• When there is a large temperature difference, wait for the product to reach room
temperature before connecting to the voltage supply.

Procedure:

To connect the ClusterController to the voltage supply, perform the following actions in the
specified order. The exact procedure is described in the following sections.

• Connecting the Grounding Conductor to the ClusterController

• Connecting the Power Supply Unit

Connecting the Grounding Conductor to the ClusterController

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

☐ 1 grounding conductor (see Section6.3 "Cable Requirements", page28)

Procedure:

1. Remove 10 mm of the cable sheath from the grounding conductor.

2. Insert the insulated conductors into the ring
terminal lug and crimp with a crimping tool.

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6 Connection and Commissioning

3. Connect the grounding conductor to the
grounding terminal. Observe the position of the
terminal (see Section6.1, page25). Observe
the order given below and hand-tighten the
fastening screw (torque: 0.8Nm):

• Fastening screw

• Split lock washer

• Washer

• Ring terminal lug with grounding conductor

• Washer

• Tooth lock washer

Connecting the Power Supply Unit

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

☐ 1 power supply unit (see Section10 "Accessories", page82)
☐ 1 AC connection cable
☐ 1 cable for connecting the power supply unit to the ClusterController (see Section6.3 "Cable

Requirements", page28)

If you are not using the top-hat rail power supply unit available as an accessory for the
ClusterController, the power supply unit you are using must meet the requirements detailed below.

Requirements for the power supply unit:

☐ Maximum output current including short circuit: 8A
☐ Maximum output apparent power: 100VA
☐ DC output voltage: 24V
☐ Nominal current: minimum 1.8A

Requirement:

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

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6 Connection and Commissioning

Figure 10: Pin assignment for terminal X1

SMA Solar Technology AG

Pin Signal Explanation

1 Not assigned Reserved for future applications
2 24 V Input voltage 24VDC
3 GND Ground

Procedure:

1. Mount the power supply unit (see manual from manufacturer).

2. Connect the connection cable to the power supply unit (see manual from manufacturer). Trim
the unused insulated conductors up to the cable sheath and write down the conductor colors.

3. Connect the connection cable to the three-pole plug. Unlock conductor entries 2 and 3 with a
screwdriver and insert the insulated conductors into the conductor entries. Observe the pin
assignment.

4. Connect the three-pole plug to terminal X1 on the ClusterController.

5. Connect the AC connection cable to the power supply unit (see the manual from
manufacturer).

6.

Danger to life due to electric shock

Lethal voltages are present at the connection point of the utility grid.

• Disconnect the connection point from voltage sources and ensure that the connection
point is voltage-free.

7. Connect the other end of the AC connection cable to the voltage supply.

8. Connect the connection point to the utility grid.

☑ The power LED ( ) on the ClusterController is glowing red for twoseconds, then it is

permanently glowing green.
The status LED ( ) is glowing corresponding to the current device status (see Section7.1,

page66). The ClusterController is ready for operation after a maximum of one minute.

✖ Is the power LED ( ) glowing permanently red, the status LED ( ) glowing yellow or

red and the ClusterController not starting?
Possible fault cause: the voltage supply is too low.

• Ensure that the voltage supply is sufficient (see Section9, page78).

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SMA Solar Technology AG

• If the problem persists, contact the Service (see Section11, page83).

6 Connection and Commissioning

6.7 Checking and Setting the ClusterController System
Time

Before connecting the ClusterController to the Speedwire network and before commissioning the
inverters, you must check the ClusterController display to verify that the correct system time is
displayed on the ClusterController. If the correct system time is not displayed, you must set the
correct system time via the ClusterController user interface. This way, you can avoid inconsistencies
in the time settings of the inverters.

Available display languages

The display languages of the ClusterController are German and English. The default
language is English. You can only change the display language to German via the
ClusterController user interface by selecting German as the user interface language and then
logging in.

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

☐ 1 network cable (see Section6.3 "Cable Requirements", page28)

Requirements:

☐ The ClusterController must be connected to the voltage supply and be in operation (see

Section6.6, page32).

☐ A computer must be available for access to the user interface of the ClusterController (see

Section2.4, page10).

Procedure:

1. Connect the computer directly to the ClusterController using the network cable. Connect the
network cable to the network port X13 or X14 on the ClusterController.

2. Select the display view External communication and read and write down the IP address of
the ClusterController from the line IP address. Tip: if you wish to integrate the
ClusterController in a static LAN, you will also need the IP address for the network
configuration (see Section6.14, page65).

3. Call up the IP address of the ClusterController via the web browser.

☑ The login page opens:
✖ The login page does not open?

Possible error cause: you have not written down the IP address correctly or you have not
entered it correctly.

• Enter the correct IP address and confirm the entry with the enter key.

• If the problem persists, read the troubleshooting information(see Section7.2 "Errors
in the ClusterController or the Connected Devices", page70).

4. Select the desired language in the upper area of the login page.

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6 Connection and Commissioning

5. Log in either as User or as Installer with the corresponding default system password for the
user group. This makes the language change take effect on the user interface and on the
display:

User group Default system password

User 0000
Installer 1111

☑ The user interface opens.
✖ The user interface does not open?

Cause: You have not entered the default system password for the selected user group
correctly.

• On the login page, enter the correct default system password for the selected user
group and confirm the entry with the enter key.

6. Select the ClusterController in the system tree and select the menu Settings in the device
menu.

7. Select the parameter group Device > Time settings.

8. If required, use the drop-down list Standard/daylight saving time conversion on to set
automatic conversion between standard and daylight saving time.

9. In the field Set system time, set the current date and time of the system.

10. In the drop-down list Time zone, select the time zone in which the system is located.

11. Select [Save].
☑ The system time is updated.

12. Select [Logout] in the toolbar.

SMA Solar Technology AG

6.8 Connecting the ClusterController to a Speedwire
Network

Interference in data transmission due to unshielded power cables

If unshielded power cables are used, they generate an electromagnetic field during operation
which may induce interference in network cables during data transmission.

• When laying network cables, observe the following minimum clearances to unshielded
energy cables:

– For installation without separating strip: at least 200 mm
– For installation with aluminum separating strip: at least 100 mm
– For installation with steel separating strip: at least 50 mm

Do not connect the Speedwire network and the LAN

The Speedwire network is a separate network managed by the ClusterController. If the
Speedwire network and the LAN are connected, a disturbance of both networks is likely.

• In order to ensure proper communication, do not connect the Speedwire network and the
LAN (the Speedwire bus and the Ethernet bus of the LAN must not be connected to the
same network switch, for example).

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6 Connection and Commissioning

Observe the configuration of the router and the network switch

For the Speedwire connection, the product uses IP addresses from the Unicast range and also
IP addresses from the Multicast range 239/8 (239.0.0.0 to 239.255.255.255).

• When using a router or network switch, ensure that the router and the network switch
forward the Multicast telegrams required for the Speedwire connection to all nodes in the
Speedwire network (for further information on how to configure the router or network
switch, see the manual from the manufacturer).

IGMP protocol version1 must be supported

The product works with multicasts. For correct function of the product, all network components
used must support the IGMP protocol, version1 (IGMPv1).

Requirements:

☐ The nodes in the Speedwire network (e. g. inverters) must be cabled in accordance with one

of the possible network topologies (see the node installation manual and the Technical
Information "SMASPEEDWIRE FIELDBUS").

☐ If your system uses an Energy Meter to measure the active power feed-in at the grid-

connection point, then the Energy Meter must be connected either to the router or network
switch of the Speedwire network or directly to terminal X9 or X10 of the ClusterController,
depending on the network topology of the system.

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

☐ Depending on the network topology: network cable (see Section6.3 "Cable Requirements",

page28)

Figure 11: Pin assignment for network ports X9, X10, X13 and X14

Pin Designation Explanation

1 TX+ Data Out +
2 TX − Data Out −
3 RX+ Data In +
4 Not assigned Not assigned
5 Not assigned Not assigned
6 RX− Data In −
7 Not assigned Not assigned
8 Not assigned Not assigned

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SMA Solar Technology AG

Procedure:

1. Connect the ClusterController to the Speedwire network. Take the desired network topology
into account:

• When using a preassembled network cable, connect the network cable to network port
X9 or X10.

• When using a network cable that is to be assembled by the user, connect the RJ45
connector to the network cable (see the manual from manufacturer) and connect the
network cable to network port X9 or X10 on the ClusterController.

2. Write down the terminal assignment on the supplied supplementary sheet.

3. Deactivate the Webconnect function on the inverters after completion of ClusterController
commissioning (see the ClusterController user manual).

6.9 Connecting the ClusterController to the LAN

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

☐ 1 network cable (see Section6.3 "Cable Requirements", page28)

Figure 12: Pin assignment for network ports X9, X10, X13 and X14

Pin Designation Explanation

1 TX+ Data Out +
2 TX − Data Out −
3 RX+ Data In +
4 Not assigned Not assigned
5 Not assigned Not assigned
6 RX− Data In −
7 Not assigned Not assigned
8 Not assigned Not assigned

High costs possible due to inappropriate Internet tariff

Depending on use, the data volume transferred by the ClusterController via the Internet can be
more than 1GB per month. The data volume depends, among other things, on the number of
inverters, the frequency of device updates, the frequency of data transfer to SunnyPortal and the
use of FTP push.

• SMA recommends using an Internet flat rate.

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Different IP address ranges required for Speedwire network and LAN

In order for an unambiguous assignment of the IP addresses in the Speedwire network and in
the LAN to be possible from the perspective of the ClusterController, the IP address ranges of
both networks must be different. By default, the ClusterController uses address range

172.22/16 (172.22.0.1 to 172.22.255.255) for the Speedwire network.

• Ensure that different IP address ranges are used for the Speedwire network and the LAN.

Observe the configuration of the router and the network switch

For the Speedwire connection, the product uses IP addresses from the Unicast range and also
IP addresses from the Multicast range 239/8 (239.0.0.0 to 239.255.255.255).

• When using a router or network switch, ensure that the router and the network switch
forward the Multicast telegrams required for the Speedwire connection to all nodes in the
Speedwire network (for further information on how to configure the router or network
switch, see the manual from the manufacturer).

IGMP protocol version1 must be supported

The product works with multicasts. For correct function of the product, all network components
used must support the IGMP protocol, version1 (IGMPv1).

Procedure:

1. Connect the network cable to the ClusterController:

• When using a preassembled network cable, connect the network cable to network port
X13 or X14.

• When using a network cable that is to be assembled by the user, connect the two RJ45
connectors to both ends of the network cable (see the manual from manufacturer) and
connect the network cable to network port X13 or X14.

2. Connect the other end of the network cable to the desired node in the LAN.

3. Write down the terminal assignment on the supplied supplementary sheet.

6 Connection and Commissioning

6.10 Connecting USB Data Carriers to the ClusterController

In order to save system data or perform an update, you can connect up to two USB data carriers to
the ClusterController (for information on updates, see the the ClusterController user manual).

Use of USB hubs not possible

The product does not support USB hubs. You must connect the USB data carrier directly to the
desired USB port on the product.

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

☐ Up to two USB data carriers, e.g. two USB flash drives (see Section10 "Accessories", page82

)

If you use a USB data carrier other than that offered by SMA as an accessory, the USB data
carrier must meet the requirements stated below.

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6 Connection and Commissioning

Requirements for USB data carriers:

☐ Maximum storage capacity: 2TB
☐ Supported file systems: FAT16 or FAT32

Use of USB hard disks with external power supply is recommended

In the case of USB hard disks with power supply via the USB interface, malfunctions can occur
if the connected USB hard disk temporarily has a greater electricity demand than that
provided for by the USB2.0 standard.

• To avoid malfunctions as a result of excessive power demand when using USB hard
disks, use only USB hard disks with external power supply.

Archival periods:

Depending on the available storage capacity of the USB data carrier and the configuration of your
system, the following approximate archival periods for the system data are possible:

Number of connected invert­ers

5 10 years 20 years
10 5 years 10 years
25 2 years 4 years
50 1 year 2 years
75 9 months 18 months

4GB storage capacity 8GB storage capacity

Approximate archival period

SMA Solar Technology AG

Procedure:

1. To protect the USB data carrier against loss, attach the USB data carrier to the eyelets located
on the underside of the USB port, for example with a loop attached to the USB data carrier.

2. Connect the USB data carrier to the desired USB port:

• To export system data, connect the USB data carrier to USB port 1.

• To transfer update files to the ClusterController, connect the USB data carrier to USB port

2.

3. If the USB data carrier is permanently inserted into the ClusterController, note the terminal
assignment on the supplied supplementary sheet.

4. If the USB data carrier is to be removed from the ClusterController, wait until the data carrier
status LED ( ) stops flashing.

6.11 Connecting Sensors to the ClusterController

6.11.1 Connecting the Temperature Sensor

You can connect one outside temperature sensor and one module temperature sensor to the
ClusterController. The measured values from the temperature sensors are shown on the display
and the user interface of the ClusterController and transmitted to SunnyPortal. In SunnyPortal, the
measured values from the module temperature sensor are used to calculate the performanceratio.

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SMA Solar Technology AG

6 Connection and Commissioning

Connecting the Outside Temperature Sensor

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

☐ 1 outside temperature sensor
☐ 1 connection cable (see Section6.3 "Cable Requirements", page28)

Requirements:

☐ The sensor must be technically suitable for connection to the temperature inputs (see Section9,

page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

Figure 13: Pin assignment for pin group Temperature input1

Pin Signal Explanation

A1 GND Shield ground
A2 I+ Current input
A3 V+ Voltage input
A4 V− Voltage return
A5 I− Current return

Procedure:

1. Connect the connection cable to the outside temperature sensor (see the manual from
manufacturer). Trim the unneeded insulated conductors up to the cable shield and note down
the conductor colors.

2. For connection to the ClusterController using two-conductor connection technology, perform
the following steps:

• On the five-pole plug, unlock conductor entry 1 using a screwdriver and insert the
insulated conductor of the wire into the conductor entry.

• On the five-pole plug, unlock conductor entries 3 and 4 using a screwdriver and insert the
insulated conductors of the connection cable into the conductor entries. Observe the pin
assignment.

• At terminal X7 in pin row A, place a bridge between pin2 and pin3 and between pin4
and pin5.

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6 Connection and Commissioning

SMA Solar Technology AG

3. For connection to the ClusterController using four-conductor connection technology, perform
the following steps:

• On the five-pole plug, unlock conductor entry 1 using a screwdriver and insert the
insulated conductor of the wire into the conductor entry.

• On the five-pole plug, unlock conductor entries 2, 3, 4 and 5 using a screwdriver and
insert the insulated conductors of the connection cable into the conductor entries.
Observe the pin assignment.

4. Insert the five-pole plug into pin row A in terminal X7.

5. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

6. Write down the terminal assignment on the supplied supplementary sheet.

Connecting the Module Temperature Sensor

Additionally required accessories (not included in scope of delivery):

☐ 1 module temperature sensor
☐ 1 connection cable (see Section6.3, page28)

Requirements:

☐ The sensor must be technically suitable for connection to the temperature inputs (see Section9,

page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

Figure 14: Pin assignment for pin group Temperature input2

Pin Signal Explanation

B1 GND Shield ground
B2 I+ Current input
B3 V+ Voltage input
B4 V− Voltage return
B5 I− Current return

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6 Connection and Commissioning

Procedure:

1. Connect the connection cable to the module temperature sensor (see the manual from
manufacturer). Trim the unneeded insulated conductors up to the cable shield and note down
the conductor colors.

2. For connection to the ClusterController using two-conductor connection technology, perform
the following steps:

• On the five-pole plug, unlock conductor entry 1 using a screwdriver and insert the
insulated conductor of the wire into the conductor entry.

• On the five-pole plug, unlock conductor entries 3 and 4 using a screwdriver and insert the
insulated conductors of the connection cable into the conductor entries. Observe the pin
assignment.

• At terminal X7 in pin rowB, place a bridge between pin2 and pin3 and between pin4
and pin5.

3. For connection to the ClusterController using four-conductor connection technology, perform
the following steps:

• On the five-pole plug, unlock conductor entry 1 using a screwdriver and insert the
insulated conductor of the wire into the conductor entry.

• On the five-pole plug, unlock conductor entries 2, 3, 4 and 5 using a screwdriver and
insert the insulated conductors of the connection cable into the conductor entries.
Observe the pin assignment.

4. Insert the five-pole plug into pin row B in terminal X7.

5. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

6. Write down the terminal assignment on the supplied supplementary sheet.

6.11.2 Connecting an Irradiation Sensor

You can connect one irradiation sensor or pyranometer to the ClusterController. The measured
value from the irradiation sensor or pyranometer is shown on the display and the user interface of
the ClusterController and transmitted to SunnyPortal. In SunnyPortal, the measured values are
used to calculate the performanceratio.

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

☐ 1 irradiation sensor
☐ 1 connection cable (see Section6.3 "Cable Requirements", page28)

Requirements:

☐ The sensor must be technically suitable for connection to the analog inputs (see Section9,

page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

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Figure 15: Pin assignment for pin group Analog current input1

SMA Solar Technology AG

Pin Signal Explanation

A1 Not assigned Reserved for future applications
A2 I+ Current input
A3 I− Current return
A4 GND Shield ground

Procedure:

1. Connect the connection cable to the irradiation sensor (see the manual from manufacturer).
Trim the unneeded insulated conductors up to the cable shield and note down the conductor
colors.

2. Connect the connection cable to the eight-pole plug:

• Unlock conductor entry4 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Unlock conductor entries 2 and 3 with a screwdriver and insert the insulated conductors
of the connection cable into the conductor entries. Observe the pin assignment.

3. Insert the eight-pole plug into pin row A in terminal X8.

4. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

5. Write down the terminal assignment on the supplied supplementary sheet.

6. Adjust the characteristic curve of the irradiation sensor or pyranometer via the
ClusterController user interface (see the ClusterController user manual). The measured
irradiation values can then be shown on the display and the ClusterController user interface.

6.11.3 Connecting Additional Sensors

Depending on whether you are using an irradiation sensor (see Section6.11.2, page43), you can
connect a maximum of three sensors to the analog current inputs and one sensor to the analog
voltage input on terminal X8 on the ClusterController.

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6 Connection and Commissioning

Display of measured values from pin group Analog voltage input4

If no sensor is connected to the pin group Analog voltage input4, a measured value for this
pin group of up to 2.2V will nevertheless be shown on the display and the user interface of
the ClusterController.

• In order for a measured value of 0V to be displayed for the pin group Analog voltage
input4 when it is not connected, place a jumper wire between pins B5 and B7 in
terminal X8.

Connecting a Sensor to an Analog Current Input

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

☐ Up to three sensors
☐ Up to three connection cables (see Section6.3 "Cable Requirements", page28)

Requirements:

☐ The sensor must be technically suitable for connection to the analog inputs (see Section9,

page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

Figure 16: Pin assignment for the pin groups Analog current input1, Analog current input2 and Analog

current input3

Pin group Pin Signal Explanation

Analog current input1 A1 Not assigned Reserved for future applications

A2 I+ Current input
A3 I− Current return
A4 GND Shield ground

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Pin group Pin Signal Explanation

Analog current input2 A5 Not assigned Reserved for future applications

A6 I+ Current input
A7 I− Current return
A8 GND Shield ground

Analog current input3 B1 Not assigned Reserved for future applications

B2 I+ Current input
B3 I− Current return
B4 GND Shield ground

Procedure:

1. Connect the connection cable to the sensor (see the manual from manufacturer). Trim the
unneeded insulated conductors up to the cable shield and note down the conductor colors.

2. For connection to the pin group Analog current input1, perform the following steps:

• Unlock conductor entry4 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Unlock conductor entries 2 and 3 with a screwdriver and insert the insulated conductors
of the connection cable into the conductor entries. Observe the pin assignment.

• Insert the eight-pole plug into pin row A in terminal X8.

3. For connection to the pin group Analog current input2, perform the following steps:

• Unlock conductor entry8 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Unlock conductor entries 6 and 7 with a screwdriver and insert the insulated conductors
of the connection cable into the conductor entries. Observe the pin assignment.

• Insert the eight-pole plug into pin row A in terminal X8.

4. For connection to the pin group Analog current input3, perform the following steps:

• Unlock conductor entry4 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Unlock conductor entries 2 and 3 with a screwdriver and insert the insulated conductors
of the connection cable into the conductor entries. Observe the pin assignment.

• Insert the eight-pole plug into pin row B in terminal X8.

5. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

6. Write down the terminal assignment on the supplied supplementary sheet.

Connecting a Sensor to the Analog Voltage Input

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

☐ 1 sensor
☐ 1 connection cable (see Section6.3 "Cable Requirements", page28)

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Requirements:

☐ The sensor must be technically suitable for connection to the analog inputs (see Section9,

page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

Figure 17: Pin assignment for pin group Analog voltage input4

Pin Signal Explanation

B5 V+ Voltage input
B6 Not assigned Reserved for future applications
B7 V− Voltage return
B8 GND Shield ground

6 Connection and Commissioning

Procedure:

1. Connect the connection cable to the sensor (see the manual from manufacturer). Trim the
unneeded insulated conductors up to the cable shield and note down the conductor colors.

2. Connect the connection cable to the eight-pole plug:

• Unlock conductor entry8 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Unlock conductor entries 5 and 7 with a screwdriver and insert the insulated conductors
of the connection cable into the conductor entries. Observe the pin assignment.

3. Insert the eight-pole plug into pin row B in terminal X8.

4. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

5. Write down the terminal assignment on the supplied supplementary sheet.

6.12 Connections for Grid Management Services

6.12.1 Options for Implementing Grid Management Service Setpoints

You can have the ClusterController implement the grid management service setpoints by using
open-loop or closed-loop control.

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In the event that the ClusterController evaluates a setpoint as invalid or does not receive a setpoint
within a configurable interval, you can make additional settings for the fallback.

Configure the grid management services via the ClusterController user interface (see the
ClusterController user manual).

SMA Solar Technology AG

Open-loop control

For ClusterController systems without self-consumption and with direct limitation of active power
feed-in, the operating mode Open-loop control is used. In this operating mode, the
ClusterController can receive the grid management service setpoints from three different types of
signal source. The different types of signal source can be combined so that, for example, the
setpoints for the active power limitation can be received as digital signals and the reactive power
setpoints can be received as analog signals:

Type of setpoint signal Explanation

Digital signals The setpoints are transmitted to the ClusterController as

digital signals in the form of binary values. Up to four re­lay contacts can be used for the active power limitation
and the reactive power setpoint.

Analog signals The setpoints are transmitted to the ClusterController as

analog current signals. Current signals from 0mA to
20mA can be transmitted for the active power limitation
and the reactive power setpoint.

Setpoint signal via Modbus client The setpoints are transmitted via a Modbus client to the

network port X13 or X14 on the ClusterController (for in­formation on Modbus configuration, see the ClusterCon­troller user manual).

Closed-loop control

For ClusterController systems with self-consumption, the operating mode Closed-loop control is
used. In this operating mode, you can limit the active power fed in by the system at the grid­connection point to a fixed percentage value. In addition to the total system power, the
ClusterController needs the measured actual value of the active power fed in at the grid-connection
point.

6.12.2 Digital Setpoint Signal

6.12.2.1 Connection Options

You have two options for each pin group on terminal X4:

• Connection of a signal source with potential-free relay contact

or

• Connection of a 24V signal source with digital output signals

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6 Connection and Commissioning

Connection of a signal source with potential-free relay contact

Figure 18: Connection of a signal source with potential-free relay contact (example)

Connection of a 24V Signal Source with Digital Output Signals

Figure 19: Connection of a 24 V signal source with digital output signals (example)

6.12.2.2 Connecting a Signal Source to a Digital Input for Active Power Limitation

Digital signals for active power limitation can be transmitted to up to four pin groups at terminal X4
on the ClusterController. A ripple control receiver or a remote terminal unit can be used as a digital
signal source, for example.

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

☐ Up to four digital signal sources
☐ Connection cable (see Section6.3 "Cable Requirements", page28)

Requirements:

☐ The signal source must be technically suitable for connection to the digital inputs (see

Section9, page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

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Figure 20: Pin assignment for pin groups on terminal X4

SMA Solar Technology AG

Pin group Pin Pin assignment Explanation

Digital input1
Signal 1 of 4 for active power

limitation

Digital input2
Signal 2 of 4 for active power

limitation

Digital input3
Signal 3 of 4 for active power

limitation

Digital input4
Signal 4 of 4 for active power

limitation

A1 24 V Voltage supply output
A2 IN Input
A3 GND Reference potential
A4 24 V Voltage supply output
A5 IN Input
A6 GND Reference potential
B1 24 V Voltage supply output
B2 IN Input
B3 GND Reference potential
B4 24 V Voltage supply output
B5 IN Input
B6 GND Reference potential

Danger to life due to electric shock caused by incorrect connection of the ripple control
receiver

Incorrect connection of the ripple control receiver can result in grid voltage on the
ClusterController enclosure.

• Do not connect the insulated conductors of the connection cable to the line conductors of the
ripple control receiver.

• When connecting, ensure that no bridge is being used in the ripple control receiver.

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Procedure:

1. Connect the connection cable to the digital signal source (see the manual from manufacturer).
Trim the unneeded insulated conductors up to the cable shield and note down the conductor
colors.

2. Connect the connection cable to the six-pole plug:

• Depending on the digital signal source and the pin assignment in terminal X4, identify the
conductor entries that are required for connecting the connection cable. The voltage
supply (24V) and the reference potential (GND) only need to be connected once for
each signal source.

• Release the required conductor entries using a screwdriver and insert the insulated
conductors into the conductor entries. Observe the pin assignment.

3. Connect the six-pole plug to terminal X4. Observe the pin coding.

4. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

5. Write down the terminal assignment on the supplied supplementary sheet.

6 Connection and Commissioning

6.12.2.3 Connecting a Signal Source to a Digital Input for Reactive Power Setpoint

Digital signals for reactive power setpoints can be transmitted to up to four pin groups at terminal
X5 on the ClusterController. A ripple control receiver or a remote terminal unit can be used as a
digital signal source, for example.

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

☐ Up to four digital signal sources
☐ Connection cable (see Section6.3 "Cable Requirements", page28)

Requirements:

☐ The signal source must be technically suitable for connection to the digital inputs (see

Section9, page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

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Figure 21: Pin assignment for pin groups on terminal X5

SMA Solar Technology AG

Pin group Pin Pin assignment Explanation

Digital input5
Signal 1 of 4 for reactive power

setpoint

Digital input6
Signal 2 of 4 for reactive power

setpoint

Digital input7
Signal 3 of 4 for reactive power

setpoint

Digital input8
Signal 4 of 4 for reactive power

setpoint

A1 24 V Voltage supply output
A2 IN Input
A3 GND Reference potential
A4 24 V Voltage supply output
A5 IN Input
A6 GND Reference potential
B1 24 V Voltage supply output
B2 IN Input
B3 GND Reference potential
B4 24 V Voltage supply output
B5 IN Input
B6 GND Reference potential

Danger to life due to electric shock caused by incorrect connection of the ripple control
receiver

Incorrect connection of the ripple control receiver can result in grid voltage on the
ClusterController enclosure.

• Do not connect the insulated conductors of the connection cable to the line conductors of the
ripple control receiver.

• When connecting, ensure that no bridge is being used in the ripple control receiver.

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6 Connection and Commissioning

Procedure:

1. Connect the connection cable to the digital signal source (see the manual from manufacturer).
Trim the unneeded insulated conductors up to the cable shield and note down the conductor
colors.

2. Connect the connection cable to the six-pole plug:

• Depending on the digital signal source and the pin assignment in terminal X5, identify the
conductor entries that are required for connecting the connection cable. The voltage
supply (24V) and the reference potential (GND) only need to be connected once for
each signal source.

• Release the required conductor entries using a screwdriver and insert the insulated
conductors into the conductor entries. Observe the pin assignment.

3. Connect the six-pole plug to terminal X5. Observe the pin coding.

4. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

5. Write down the terminal assignment on the supplied supplementary sheet.

6.12.2.4 Digital Signal Setpoint when Using Multiple ClusterControllers

To implement digital setpoints from the grid operator, you can connect any number of
ClusterControllers in parallel to one digital signal source.

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

☐ Power supply unit (quantity depends on the number of ClusterControllers to be connected)

Requirements for the power supply unit:

☐ DC output voltage: 24V
☐ The power supply unit must supply at least 10mA per input signal for the ClusterControllers.

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Figure 22: Transmission of digital signals for active power limitation to two ClusterControllers via relays K1 and
K2 of a ripple control receiver (example)

SMA Solar Technology AG

6.12.3 Analog Setpoint Signal

6.12.3.1 Connecting a Signal Source to an Analog Input for Active Power Limitation

Analog signals for active power limitation are transmitted to the pin group Analog current input2
in terminal X8 on the ClusterController. A remote terminal unit can be used as an analog signal
source, for example.

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

☐ 1 analog signal source
☐ Connection cable (see Section6.3 "Cable Requirements", page28)

Requirements:

☐ The signal source must be technically suitable for connection to the analog inputs (see

Section9, page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

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Figure 23: Pin assignment for pin group Analog current input2

6 Connection and Commissioning

Pin Signal Explanation

A5 Not assigned Reserved for future applications
A6 I+ Current input
A7 I− Current return
A8 GND Shield ground

Procedure:

1. Connect the connection cable to the analog signal source (see the manual from manufacturer).
Trim the unneeded insulated conductors up to the cable shield and note down the conductor
colors.

2. Connect the connection cable to the eight-pole plug:

• Unlock conductor entry8 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Unlock conductor entries 6 and 7 with a screwdriver and insert the insulated conductors
of the connection cable into the conductor entries. Observe the pin assignment.

3. Insert the eight-pole plug into pin row A in terminal X8.

4. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

5. Write down the terminal assignment on the supplied supplementary sheet.

6.12.3.2 Connecting a Signal Source to an Analog Input for Reactive Power Setpoint

Analog signals for the reactive power setpoint are transmitted to the pin group Analog current
input3 in terminal X8 on the ClusterController. A remote terminal unit can be used as an analog

signal source, for example.

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

☐ 1 analog signal source
☐ Connection cable (see Section6.3 "Cable Requirements", page28)

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Requirements:

☐ The signal source must be technically suitable for connection to the analog inputs (see

Section9, page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

Figure 24: Pin assignment for pin group Analog current input3

Pin Signal Explanation

B1 Not assigned Reserved for future applications
B2 I+ Current input
B3 I− Current return
B4 GND Shield ground

Procedure:

1. Connect the connection cable to the analog signal source (see the manual from manufacturer).
Trim the unneeded insulated conductors up to the cable shield and note down the conductor
colors.

2. Connect the connection cable to the eight-pole plug:

• Unlock conductor entry4 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Unlock conductor entries 2 and 3 with a screwdriver and insert the insulated conductors
of the connection cable into the conductor entries. Observe the pin assignment.

3. Insert the eight-pole plug into pin row B in terminal X8.

4. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

5. Write down the terminal assignment on the supplied supplementary sheet.

6.12.3.3 Analog Setpoint Signal when Using Multiple ClusterControllers

To implement analog setpoints from the grid operator when using multiple ClusterControllers, you
can use isolation amplifiers to duplicate the analog current signals. By switching the isolation
amplifiers in series, the analog current signals can be transferred to any number of
ClusterControllers.

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Figure 25: Transmission of analog current signals for active power limitation to three ClusterControllers via
isolation amplifiers (example)

6 Connection and Commissioning

6.12.4 Setpoint via Modbus Client

Requirements:

☐ The ClusterController and the Modbus client must be located in the same LAN.
☐ Commissioning of the ClusterController must be completed.

In order to receive the grid operator setpoints via a Modbus client, you must configure the Modbus
via the ClusterController user interface after completing commissioning (see the ClusterController
user manual).

6.12.5 Feedback of the Cluster Controller

6.12.5.1 Feedback Options

The Cluster Controller has three digital outputs (terminal X2) and three analog current outputs
(terminal X6) that offer various feedback options. Using these outputs, you can give the grid
operator feedback, for example, if and which specifications for the grid management services are
currently implemented in the system. You can also use the outputs to be informed about the status of
the system. Which feedback options were set at the factory for terminals X2 and X6 and their pin
groups, is described in a previous section (see Section6.2, page26). The feedback options that
you can choose from can be found in the menu Settings on the user interface of the
ClusterController.

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6.12.5.2 Connecting a Remote Terminal for Feedback via Digital Signal

Using suitable remote terminals (e.g. optical or acoustic signal generators), the status of the system
can be fed back to you via the pin groups Digital output 1, Digital output 2, and Digital
output 3 of the X2 terminal. Which feedback options were set at the factory for terminal X2 and
its pin groups, is described in a previous section (see Section6.2, page26). The feedback options
that you can choose from can be found in the menu Settings on the user interface of the
ClusterController.

Observe the maximum load capacity of the relay contacts

The relay contacts may be loaded with a maximum switching power of 30W and a maximum
voltage of 48VDC.

Requirements:

☐ The remote terminal must be technically suitable for connection to the digital output (see

Section9, page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

Figure 26: Pin assignment for the pin groups Digital output 1, Digital output 2, and Digital output 3

Pin group Relay Pin Signal Explanation

Digital output1 A A1 NC Back contact

A2 CO Change-over con-

tact

A3 NO Front contact

Digital output2 B A4 NC Back contact

A5 CO Change-over con-

tact

A6 NO Front contact

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6 Connection and Commissioning

Pin group Relay Pin Signal Explanation

Digital output3 C B1 NC Back contact

B2 CO Change-over con-

tact

B3 NO Front contact

Procedure:

1. Connect the connection cable to the remote terminal (see the manual from manufacturer). Trim
the unneeded insulated conductors up to the cable shield and note down the conductor colors.

2. Connect the connection cable to the six-pole plug:

• Depending on the remote terminal and the pin assignment of the pin group, identify the
conductor entries that are required for connecting the connection cable.

• Release the required conductor entries using a screwdriver and insert the insulated
conductors into the conductor entries. Observe the pin assignment.

3. Insert the six-pole plug at terminal X2 into pin row A or B.

4. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

5. Write down the terminal assignment on the supplied supplementary sheet.

6.12.5.3 Connecting a Remote Terminal for Feedback via Analog Signal

Via the pin groups Analog current output 1, Analog current output 2, and Analog current
output 3 of terminal X6 you can give the grid operator feedback, for example, if and which

specifications for the grid management services are currently implemented in the system. Which
feedback options were set at the factory for terminal X6 and its pin groups, is described in a
previous section (see Section6.2, page26). The feedback options that you can choose from can
be found in the menu Settings on the user interface of the ClusterController.

Requirements:

☐ The remote terminal must be technically suitable for connection to the analog outputs (see

Section9, page78).

☐ The connection cable must be prepared for connection to the multipole plug (see Section6.5,

page30).

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Figure 27: Pin assignment for the pin groups Analog current output1, Analog current output2 and

Analog current output3

SMA Solar Technology AG

Pin group Pin Signal Explanation

Analog current output1 A1 I+ Current output

A2 I− Current return
A3 GND Shield ground

Analog current output2 A4 I+ Current output

A5 I− Current return
A6 GND Shield ground

Analog current output3 B1 I+ Current output

B2 I− Current return
B3 GND Shield ground

Example: Interpretation of the signal strength as a percentage value of the
active power limitation

The strength of the feedback signal corresponds to the percentage value to which the active power
of the inverters in the system is currently limited.

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Figure 28: Interpretation of the signal strength as a percentage value of the active power limitation in relation to
the inverter parameter Currently set active power limit or Pmax

6 Connection and Commissioning

Example: Interpretation of signal strength as a reactive power setpoint value

Depending on the value of the reactive power setpoint that was selected via the user interface (see
the ClusterController user manual), the strength of the feedback signal corresponds either to the
percentage value for the reactive power setpoint or to the latest displacement power factor cosφ
sent to the inverters in the system.

Figure 29: Interpretation of the signal strength as a percentage value of the reactive power setpoint in relation
to the inverter parameter Currently set active power limit or Pmax

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Figure 30: Interpretation of the signal strength as displacement power factor cosφ

SMA Solar Technology AG

Procedure:

1. Connect the connection cable to the remote terminal (see the manual from manufacturer). Trim
the unneeded insulated conductors up to the cable shield and note down the conductor colors.

2. When using the pin group Analog current output3, perform the following steps to connect
the connection cable to the six-pole plug:

• Unlock conductor entry3 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Depending on the remote terminal and the pin assignment for the pin group Analog
current output1, identify the conductor entries that are required for connecting the
connection cable.

• Release the required conductor entries using a screwdriver and insert the insulated
conductors into the conductor entries. Observe the pin assignment.

3. When using the pin group Analog current output2, perform the following steps to connect
the connection cable to the six-pole plug:

• Unlock conductor entry6 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

• Depending on the remote terminal and the pin assignment for the pin group Analog
current output2, identify the conductor entries that are required for connecting the
connection cable.

• Release the required conductor entries using a screwdriver and insert the insulated
conductors into the conductor entries. Observe the pin assignment.

4. When using the pin group Analog current output3, perform the following steps to connect
the connection cable to the six-pole plug:

• Unlock conductor entry3 with a screwdriver and insert the insulated conductor of the
wire into the conductor entry.

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6 Connection and Commissioning

• Depending on the remote terminal and the pin assignment for the pin group Analog
current output3, identify the conductor entries that are required for connecting the
connection cable.

• Release the required conductor entries using a screwdriver and insert the insulated
conductors into the conductor entries. Observe the pin assignment.

5. Insert the six-pole plug into the appropriate pin row in terminal X6:

• When using the pin group Analog current output1 or Analog current output2,
insert the six-pole plug into pin row A.

• When using the pin group Analog current output3, insert the six-pole plug into pin
row B.

6. On the connection cable, mark the terminal and the pin row to which the connection cable is
assigned. Use the supplied cable tie with caption field.

7. Write down the terminal assignment on the supplied supplementary sheet.

6.12.5.4 Feedback When Using Multiple ClusterControllers

Feedback via Digital Signal

When using multiple ClusterControllers, you have two options for feedback on grid operator
setpoints via digital signal:

• Connect one remote terminal to the digital output of each ClusterController (see
Section6.12.5.2, page58)

or

• Switch the digital outputs of several ClusterControllers in series.

Switching digital outputs of several ClusterControllers in series:

If you switch the digital outputs of several ClusterControllers in series, feedback on an activated
active power limitation only occurs if all ClusterControllers in the series acknowledge the active
power limitation.

Figure 31: Series connection of the digital outputs of three ClusterControllers for feedback on grid operator
setpoints for active power limitation (example)

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6 Connection and Commissioning

SMA Solar Technology AG

Feedback via analog signal

When using multiple ClusterControllers, you must connect one remote terminal to the analog
current outputs of each ClusterController (see Section6.12.5.3, page59).

6.13 Checking the Connections via the Display

You can use the ClusterController display to check whether the connections have been made
correctly and whether all inverters, sensors and remote terminals have been detected by the
ClusterController. The content of the display views takes one or two seconds to update. For
technical reasons, presentation on the display depends on the ambient temperature and may be
correspondingly delayed in the event of low ambient temperature.

Procedure:

1. Select the display view System status.

2. Check whether the correct number of connected inverters is displayed in the line Number of
devices. If the correct number of connected inverters is not displayed, ensure that all inverters
are connected correctly (see Section7.2, page70).

3. When using digital inputs, select the display view Digital inputs.

4. Check whether the expected binary values are displayed in the lines Digital input group1
and Digital input group2. If the expected binary values are not displayed, ensure that the
digital signal source is correctly connected (see Section6.12.2, page48).

5. When using the analog inputs, select the display view Analog inputs.

6. If an analog signal source or a sensor is connected, check whether a current signal is
displayed in the lines Analog current input1, Analog current input2 or Analog current
input3. If no current signal is displayed, ensure that the analog signal source is correctly
connected (see Section6.12.3, page54) or the sensor is correctly connected (see
Section6.11.3, page44).

7. If a sensor is connected to the pin group Analog voltage input4, check whether a
measured value is displayed in the line Analog voltage input4. If no measured value is
displayed, ensure that the sensor is connected correctly (see Section6.11.3, page44).

8. If an irradiation sensor or a temperature sensor is connected, select the display view
Meteorology.

9. Check whether measured values are displayed for each connected sensor. If no measured
values are displayed for the connected temperature sensor, ensure that the temperature sensor
is correctly connected (see Section6.11.1, page40). If no measured values are displayed for
the connected irradiation sensor, either the characteristic curve of the irradiation sensor is not
configured or the irradiation sensor is not correctly connected.

• Ensure that the characteristic curve of the irradiation sensor is configured (see the
ClusterController user manual).

• Ensure that the irradiation sensor is correctly connected (see Section6.11.3, page44).

Installation ManualClusterController-IA-en-1564

SMA Solar Technology AG

6 Connection and Commissioning

6.14 Configuring a Static LAN

You can configure the ClusterController and the inverters in the system for a static LAN (see the
ClusterController user manual). The ClusterController and the inverters are configured for
automatic address allocation via DHCP by default.

6.15 Setting Up a Modbus Data Connection

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

☐ Up to twoModbus clients

Requirements:

☐ The ClusterController and the Modbus client must be located in the same LAN (see

Section6.9, page38).

☐ Commissioning of the ClusterController must be completed.

Set up the Modbus data connection via the ClusterController user interface (see the
ClusterController user manual) and the Modbus client (see manual from manufacturer). For further
information on possible Modbus settings on the ClusterController, see the Technical Description
"SMACLUSTERCONTROLLER Modbus® Interface".

Installation Manual 65ClusterController-IA-en-15

7 Troubleshooting

SMA Solar Technology AG

7 Troubleshooting

7.1 LED States

7.1.1 Operation LEDs

Configuration of the Status LED ( ):

The status LED can display the following statuses:

• Status of the ClusterController

• Status of the connected inverters

• Status of the system communication

• Status of the grid management services

In this document, the only states described below are those that the status LED can adopt during
commissioning (for a complete description of the states, see the ClusterController user manual).

If the status LED is not glowing green after commissioning, refer also to the event log of the
ClusterController to determine the precise cause of the error. The details of each error are logged
in the event log (see the ClusterController user manual).

LED Status Cause and corrective measure

All off The ClusterController is not connected to the voltage

supply.

Corrective measures:

• Connect the ClusterController to the voltage
supply (see Section6.13, page64).

The voltage supply is reverse-connected or the power
supply unit is defective.

Corrective measures:

• Ensure that the voltage supply is correctly
connected (see Section6.13, page64).

• If the voltage supply is connected correctly,
replace the power supply unit.

Power ( )
and

Status ( )

Power ( )

Power glowing
red, status glow­ing yellow or red

glowing green The start procedure is complete. The ClusterCon-

The voltage supply is too low.

Corrective measures:

• Ensure that the connected voltage supply is
sufficient (see Section6.13, page64).

• If the problem persists, contact the Service (see
Section11, page83).

troller is ready for operation.

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LED Status Cause and corrective measure

Status ( )

glowing green Normal operation
glowing yellow

At least one device has the status Warning.

Corrective measures:

• Check the ClusterController event log (see the
ClusterController user manual).

• Refer to the device documentation.

glowing red

At least one device has the status Error.

Corrective measures:

• Check the ClusterController event log (see the
ClusterController user manual).

• Refer to the device documentation.

The SD memory card in the ClusterController may be
defective.

Corrective measures:

• Check the ClusterController event log (see the
ClusterController user manual).

• If the SD memory card is defective, contact
Service (see Section11, page83).

flashing red The ClusterController could not start correctly. A sys-

tem error has occurred.

Corrective measures:

• Contact the Service (see Section11, page83).

7 Troubleshooting

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7 Troubleshooting

SMA Solar Technology AG

LED Status Cause and corrective measure

Data carrier status
( )

off The ClusterController is starting and no information is

yet available for data export or for the USB data car­rier.

Corrective measures:

• Wait until the ClusterController has completed
the start process and is ready for operation.
Once the start process is complete, the power

LED ( ) will glow green.

No USB data carrier was detected. It is possible that
no USB data carrier is connected or the USB data
carrier is not compatible.

Corrective measures:

• Ensure that a compatible USB data carrier is
connected (see Section9, page78).

glowing green The USB data carrier is compatible. The free storage

capacity is above10%.

glowing yellow

The USB data carrier connected to USB port 1 is
compatible but the free storage capacity is no more
than 10%.

Corrective measures:

• Delete files that are no longer required from the
USB data carrier.

or

• Replace the USB data carrier with a USB data
carrier that has sufficient free storage capacity.

Data carrier status
( )

glowing red

The USB data carrier connected to USB port 1 is full
or write-protected.

Corrective measures:

• If the USB data carrier is full, replace the USB
data carrier.

• If the USB data carrier is write-protected,
remove the write protection or use a USB data
carrier without write protection.

flashing green or
yellow or red

Write or read accesses are currently being per­formed on the USB data carrier.

Corrective measures:

• Only remove the USB data carrier once the
data carrier status LED is no longer flashing.

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SMA Solar Technology AG

7.1.2 Network Port LEDs

LED Status Cause and corrective measure

Link/Activity
(green)

Speed (yellow) Off Network connection established.

Off No network connection established.

The ClusterController is not connected to the voltage sup­ply.

Corrective measures:

• Connect the ClusterController to the voltage supply
(see Section6.6, page32).

No network connection established.
The network cable is not correctly connected to the Clus-

terController, the router or the network switch.

Corrective measures:

• Ensure that the network cables are connected
correctly (see Section6.9, page38).

No network connection established.
One or more network components, network cables or con-

nectors are defective or damaged.

Corrective measures:

• Replace the defective or damaged network
components, network cables or connectors.

flashing Network connection established.

Data is being sent or received.

The data transfer rate is up to 10Mbit/s.

on Network connection established.

The data transfer rate is up to 100Mbit/s.

7 Troubleshooting

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7 Troubleshooting

SMA Solar Technology AG

7.2 Errors in the ClusterController or the Connected
Devices

General information

Problem Cause and corrective measure

The ClusterController does not start.
The LEDs and the display are off.

User Interface and Display

Problem Cause and corrective measure

The user interface is not displayed
properly.

The ClusterController is not connected to the voltage sup­ply.

Corrective measures:

• Ensure that the three-pole plug for the voltage supply
is connected to terminal X1 of the ClusterController.

The voltage supply is reverse-connected or the power sup­ply unit is defective.

Corrective measures:

• Ensure that the voltage supply is correctly connected
(see Section6.13, page64).

• If the voltage supply is connected correctly, replace
the power supply unit.

JavaScript is deactivated in the web browser.

Corrective measures:

• Activate JavaScript in the web browser.

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Problem Cause and corrective measure

The correct number of connected in­verters is not shown on the display.

Communication with at least one inverter is disturbed.
Either the ClusterController has not yet registered with
one or more inverters or the connection to one or more in­verters has been interrupted.

Corrective measures:

• Wait six minutes and check again whether the
correct number of all connected inverters is
displayed.

If the correct number of connected inverters is still not
displayed:

– Ensure that the inverters are in operation (see

inverter manual).

– Ensure that the network cables that connect the

inverters with one another are correctly
connected (depending on the inverter
equipment, see the inverter manual or the
installation manual of the Speedwire/
Webconnect interface).

– Ensure that the network cable of the inverter

connected directly to the ClusterController is
connected to network port X9 or X10 of the
ClusterController.

– Ensure that no network components, network

cables or connectors are defective.

The expected binary values for the
digital signal source are not shown on
the display.

The digital signal source is not correctly connected.

Corrective measures:

• Ensure that the digital signal source is correctly
connected (see Section6.12.2, page48).

No current signal for the analog sig­nal source or the sensor is shown on
the display.

The analog signal source or the sensor are probably not
correctly connected.

Corrective measures:

• Ensure that the analog signal source is correctly
connected (see Section6.12.3, page54).

• Ensure that the sensor is correctly connected (see
Section6.11.3, page44).

No measured values for the con­nected temperature sensor are shown
on the display.

The temperature sensor is not correctly connected.

Corrective measures:

• Ensure that the temperature sensor is correctly
connected (see Section6.11.1, page40).

7 Troubleshooting

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7 Troubleshooting

Problem Cause and corrective measure

No measured values for the con­nected irradiation sensor are shown
on the display.

If no measured values are displayed for the irradiation
sensor, either the characteristic curve of the irradiation sen­sor is not configured or the irradiation sensor is not cor­rectly connected.

Corrective measures:

• Ensure that the characteristic curve of the irradiation
sensor is configured (see the ClusterController user
manual).

• Ensure that the irradiation sensor is correctly
connected (see Section6.11.3, page44).

Though it is not connected, a mea­sured value of up to 2.2V for pin
group Analog voltage input4 is
shown on the display and the user in­terface.

If no sensor is connected to the pin group Analog volt-
age input4, a measured value for this pin group of up to

2.2V will nevertheless be shown on the display and the
user interface of the ClusterController.

Corrective measures:

• In order for a measured value of 0V to be displayed
for the pin group Analog voltage input4 when it is
not connected, place a jumper wire between pins B5
and B7 in terminal X8.

Login

SMA Solar Technology AG

Problem Cause and corrective measure

The login page does not open and the
status LED ( ) is flashing red.

The ClusterController could not start correctly. A system
error has occurred.

Corrective measures:

• Disconnect the ClusterController from the voltage
supply and reconnect it to the voltage supply. Note
that this can lead to loss of system data.

• If the problem persists, contact the Service (see
Section11, page83).

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7 Troubleshooting

Problem Cause and corrective measure

The login page does not open. The ClusterController is not connected to the voltage sup-

ply.

Corrective measures:

• Ensure that the three-pole plug for the voltage supply
is connected to terminal X1 of the ClusterController.

The voltage supply is reverse-connected or the power sup­ply unit is defective.

Corrective measures:

• Ensure that the voltage supply is correctly connected
(see Section6.13, page64).

• If the voltage supply is connected correctly, replace
the power supply unit.

A firewall is blocking the connection.

Corrective measures:

• Adjust the firewall settings in order to allow the
required connection.

If the ClusterController is connected to the LAN via DHCP
and the voltage supply of the ClusterController was
briefly interrupted, it is possible that the DHCP server has
assigned the ClusterController a new IP address.

Corrective measures:

• Select the display view External communication
and read out the current IP address of the
ClusterController.

• Call up the IP address via the web browser.

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7 Troubleshooting

Problem Cause and corrective measure

The login page does not open. There is a problem in the LAN.

Corrective measures:

• Ensure that the network cables are correctly
connected to the ClusterController (see Section6.9,
page38).

• Check whether the network components, network
cables or connectors are defective or damaged.
Replace defective or damaged network components,
network cables or connectors.

• Check whether the network settings of the individual
network components are correct. Adapt the network
settings if required.

• Restart the ClusterController. Disconnect the
ClusterController from the voltage supply and
reconnect it to the voltage supply. Note that this can
lead to loss of system data.

• If the problem persists, contact the network
administrator.

Login to the user interface has failed. The system password has been entered incorrectly four

times. Access to the ClusterController is suspended for
15minutes.

Corrective measures:

• Wait 15minutes, then log in with the correct system
password.

SMA Solar Technology AG

7.3 Resetting the ClusterController

You can reset the ClusterController via the keypad.

Procedure:

1. Call up the display view Settings. To do this, simultaneously press and hold the [OK] and [
ESC] buttons on the keypad for two seconds.

☑ The display view Settings opens.

2. Select the settings that are to be reset:

Settings to be reset Explanation

Reset password The user password and the installer password are re-

set.
Reset network settings The network settings of the ClusterController are reset.
Reset to default settings The ClusterController is reset to default settings. Stored

system data is deleted.

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7 Troubleshooting

3. To exit the display view, press [ESC].

4. To confirm the settings that are to be reset, perform the following steps:

• Press [OK].
☑ The display view Confirm the resetting appears.

• Select OK and confirm with [OK].

☑ The selected settings are reset.
☑ If the network settings were reset or the ClusterController was reset to default settings, the

ClusterController restarts.

5. If SunnyPortal is being used and the ClusterController was reset to default settings, adjust the
system identifier for SunnyPortal in the ClusterController (see the ClusterController user
manual).

Installation Manual 75ClusterController-IA-en-15

8 Decommissioning

SMA Solar Technology AG

8 Decommissioning

8.1 Disassembling the ClusterController

1.

Danger to life due to electric shock

Lethal voltages are present at the connection point of the utility grid.

• Disconnect the connection point from the utility grid using the separator (e.g. circuit
breaker).

• Remove the three-pole plug of the top-hat rail power supply unit from terminal X1 on the
ClusterController.

2. Remove the network cable for the Speedwire network (e.g. for the inverter) from the
ClusterController.

3. Remove the LAN network cable (e.g. for the router) from the ClusterController.

4. Remove the multipole plugs for the connected devices and sensors from the ClusterController.

5. Remove the ClusterController from the top-hat rail:

• Pull down the bracket for the top-hat rail
locking mechanism located underneath the
ClusterController, or press it down using a
screwdriver.

• Tip the lower edge of the ClusterController
forwards and lift upward to remove it from
the top-hat rail.

8.2 Packing the Product for Shipment

• Pack the product for shipping. Use the original packaging or packaging that is suitable for the
weight and size of the product.

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8 Decommissioning

8.3 Disposing of the Product

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

Installation Manual 77ClusterController-IA-en-15

9 Technical Data

SMA Solar Technology AG

9 Technical Data

General Data

Status display LEDs, display
Operation Keypad, integrated web server
Mounting type Top-hat rail mounting
Mounting location Indoors

Mechanical Data

Width x height x depth 275 mm x 133 mm x 71 mm
Weight 1.2 kg

Display

Display LCD
Resolution 240 pixels x 64 pixels
Display languages German, English
Operation Keypad

Memory

Internal ring buffer 1.7GB
External storage* USB data carrier

* optional

Voltage supply

Voltage supply Power supply unit
Input voltage 18 VDC to 30 V
Typical power consumption 24 W
Maximum power consumption 30 W

Ambient Conditions

Ambient temperature in operation* -25°C to +60 °C
Ambient temperature during storage and trans-

port
Relative humidity in operation** 4% to 95%
Relative humidity during storage and transport

**

-40°C to +70°C

10% to 95%

DC

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SMA Solar Technology AG

9 Technical Data

Degree of protection in accordance with

IP20

IEC60529
Electromagnetic compatibility as per EN55022 ClassA
Maximum altitude above Mean Sea Level

3,000 m

(MSL)

* If the flow rate of the ambient air is constantly ≥0.5m/s, the ambient temperature range in operation

increases to -25°Cto+70°C.

** non-condensing

Communication

Inverter Speedwire
Local area network (LAN) Ethernet
Data interfaces HTTP, FTP, Modbus TCP / UDP, SMTP,

SunnyPortal

Maximum Cable Length for Communication

Speedwire* 100 m
Ethernet* 100 m

* between two nodes when using installation cables

Maximum Number of Devices

SMA devices with Speedwire interface For model "CLCON-S-10": 25

For model "CLCON-10": 75

Network Ports

Quantity (Speedwire) 2
Quantity (LAN) 2
Auto-MDIX (auto-crossing) Yes
Data transfer standard 10BaseT or 100BaseTx
Data transfer rate* up to 10Mbit/s or up to 100Mbit/s

* Autonegotiation

Digital inputs

Quantity 8
Input voltage 24 V
Maximum cable length 30 m

Installation Manual 79ClusterController-IA-en-15

DC

9 Technical Data

SMA Solar Technology AG

Digital outputs

Quantity 3
Design Potential-free relay contacts
Maximum switching power 30 W
Maximum voltage load 48 V

DC

Maximum cable length 30 m

Analog inputs

Number of analog inputs for current signals 3
Number of analog inputs for voltage signals 1
Internal resistance 450Ω
Measurement range for current signals 0mA to 20mA
Measurement range for voltage signals 0V to +10V
Typical tolerance ± 0.3%
Maximum tolerance ± 2%
Maximum cable length 30 m

Analog outputs

Number of analog outputs for current signals 3
Measurement range for current signals 4mA to 20mA
Maximum tolerance ± 0.5%
Maximum cable length 3,000 m

Temperature Inputs

Quantity 2
Measuring shunt Platinum sensor Pt100, platinum sensor Pt1000
Type of measurement Two-conductor connection technology, four-

conductor connection technology
Measurement range -40°C to +85°C
Maximum tolerance* ±0.5°C
Maximum cable length* 20 m

* when measured with four-conductor connection technology

USB Ports

Quantity 2

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SMA Solar Technology AG

Specification USB2.0 Hi‑Speed
Maximum current 500 mA
Maximum cable length 3 m

9 Technical Data

Installation Manual 81ClusterController-IA-en-15

10 Accessories

SMA Solar Technology AG

10 Accessories

You will find the accessories for your product in the following overview. If required, these can be
ordered from SMA Solar Technology AG or your distributor.

Designation Short description SMA order number

Top-hat rail power sup­ply unit*

USB flash drive 4GB USB flash drive with storage capacity of

USB flash drive 8GB USB flash drive with storage capacity of

* Not available in all countries. For information on whether an accessory is available in your country, visit

the website of your country's SMA subsidiary at www.SMA-Solar.com or contact your distributor.

Top-hat rail power supply unit for
SMAClusterController

4GB

8GB

CLCON-PWRSUPPLY

USB-FLASHDRV4GB

USB-FLASHDRV8GB

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SMA Solar Technology AG

11 Contact

11 Contact

If you have technical problems with our products, please contact the SMAServiceLine. We need
the following information in order to provide you with the necessary assistance:

• ClusterController:
– Serial number
– Firmware version

• Inverters:
– Type
– Serial number
– Firmware version

• When using a retrofitted Speedwire/Webconnect interface:
– Serial number and firmware version of the Speedwire/Webconnect interface

You can read off the required information from the ClusterController user interface. Or you can
find the serial number on the type label of the respective product (see the respective product
manual). You can also find the serial number and the firmware version of the ClusterController in
the display view ClusterController.

Danmark
Deutschland
Österreich
Schweiz

France SMA France S.A.S.

SMA Solar Technology AG
Niestetal
SMA Online Service Center:

www.SMA.de/Service
Sunny Boy, Sunny Mini Central,

SunnyTripower:
+495619522‑1499

Monitoring Systems (Kommunika­tionsprodukte):
+495619522‑2499

Fuel Save Controller (PV-Diesel­Hybridsysteme):
+495619522-3199

Sunny Island, Sunny Backup, Hy­dro Boy: +495619522-399

Sunny Central:
+495619522-299

Lyon
[phone]

Belgien
Belgique
België
Luxemburg
Luxembourg
Nederland

Česko
Magyarország
Polska
România
Slovensko

Ελλάδα
Κύπρος

SMA Benelux BVBA/SPRL
Mechelen
+3215286 730

SMA Central & Eastern
Europes.r.o.

Praha
+420235010417

SMA Hellas AE
Αθήνα
[phone]

Installation Manual 83ClusterController-IA-en-15

11 Contact

SMA Solar Technology AG

España
Portugal

SMA Ibérica Tecnología Solar,
S.L.U.

Barcelona
+34935635099

Italia SMA Italia S.r.l.

Milano
+39028934-7299

United Arab
Emirates

SMA Middle East LLC
Abu Dhabi
+9712234-6177

SMA Solar (Thailand) Co., Ltd.

+6626706999

South Africa SMA Solar Technology South

Africa Pty Ltd.
Cape Town
08600SUNNY (78669)
International: [phone]

0600

Australia SMA Australia Pty Ltd.

Sydney
Toll free for Australia:

1800SMAAUS
(1800762287)

International: +61294914200

United King­dom

SMA Solar UK Ltd.
Milton Keynes
+441908304899

France SMA France S.A.S.

Lyon
[phone]

India SMA Solar India Pvt. Ltd.

Mumbai
+912261713888

󷨺󹲖󸌶󷒧 SMA Technology Korea Co.,

Ltd.
󸡖󸷲
[phone]

Argentina
Brasil
Chile

SMA South America SPA
Santiago
[phone]

Perú

Other countries International SMA Service Line

Niestetal
Toll free worldwide:

00800SMASERVICE
(+8007627378423)

Installation ManualClusterController-IA-en-1584

SMA Solar Technology

www.SMA-Solar.com