SMA MULTIFUNCTION RELAY User Manual

Installation Manual

MULTIFUNCTION RELAY

MFR-NR-IA-en-21 | Version 2.1 ENGLISH

Legal Provisions SMA Solar Technology AG

Legal Provisions

The information contained in this document is the property of SMA Solar Technology AG. Publishing its content, either partially or in full, requires the written permission of SMA Solar Technology AG. Any internal company copying of the document for the purposes of evaluating the product or its correct implementation is allowed and does not require permission.

SMA Warranty

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

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 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. +49 561 9522-0 Fax +49 561 9522-100 www.SMA.de E-mail: info@SMA.de

word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.

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SMA Solar Technology AG Table of Contents

Table of Contents

1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Target Group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3 Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4 Typographies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.6 Display of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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

2.3 Symbol on the Product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 Safety during Electrical Connection. . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Electrical Connection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.3 Overview of the Connection Area. . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4 Installing the Multifunction Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4.1 Mounting Position and Cable Route . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4.2 Installing the Multifunction Relay in the Sunny Boy Smart Energy . . 13

4.4.3 Installing the Multifunction Relay in the Sunny Boy / Windy Boy

or Sunny Tripower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.5 Selecting the Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.6 Connecting the Multifunction Relay. . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.6.1 Connection Options for the Multifunction Relay . . . . . . . . . . . . . . . 18

4.6.2 Connecting to the Multifunction Relay . . . . . . . . . . . . . . . . . . . . . . . 22

5 Changing the Operating Mode of the Multifunction Relay . . 24

6 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

7 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

8 EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Installation Manual MFR-NR-IA-en-21 3

Table of Contents SMA Solar Technology AG

4 MFR-NR-IA-en-21 Installation Manual

SMA Solar Technology AG 1 Information on this Document

1 Information on this Document

1.1 Validity

This document is valid for device type "MFR01-10".

1.2 Target Group

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

• 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, including all safety precautions

1.3 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

Indicates that the following section contains tasks that must only be performed by qualified persons

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

Installation Manual MFR-NR-IA-en-21 5

1 Information on this Document SMA Solar Technology AG

1.4 Typographies

Typography Use Example

Bold • Parameters

• Elements to be selected

• Elements to be entered

• Select the parameter

Operating mode of multifunction relay or Mlt.OpMode and set

the desired operating mode.

1.5 Nomenclature

Complete designation Designation in this document

Multifunction relay Multifunction relay, product Sunny Boy, Windy Boy, Sunny Tripower,

Sunny Boy Smart Energy PV system, small wind turbine system System

Inverter

1.6 Display of Parameters

Depending on the type of communication (e.g. RS485, BLUETOOTH or Speedwire/Webconnect), the parameters are displayed differently in the communication products. This document uses both methods of displaying parameters.

Example: Display of the parameter for setting the operating mode of the multifunction relay

• For communication via RS485: parameter Mlt.OpMode

• For communication via BLUETOOTH or Speedwire/Webconnect: parameter Operating

mode of multifunction relay

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SMA Solar Technology AG 2 Safety

2 Safety

2.1 Intended Use

The multifunction relay is a multifunctional interface that can be configured for the operating mode used by a particular system (see Section4.5 "Selecting the Operating Mode", page17).

The multifunction relay can be retrofitted or installed in the inverter at the factory if specified in the order.

The multifunction relay is suitable for use in the following SMA inverters:

• SB 3000TL-21, SB 3600TL-21, SB 4000TL-21, SB 5000TL-21

• SB 3600SE-10, SB 5000SE-10

• WB 3000TL-21, WB 3600TL-21, WB 4000TL-21, WB 5000TL-21

• SB 2500TLST-21, SB 3000TLST-21

• STP 8000TL-10, STP 10000TL-10, STP 12000TL-10, STP 15000TL-10, STP 17000TL-10

• STP 15000TLHE-10, STP 20000TLHE-10, STP 15000TLEE-10, STP 20000TLEE-10

Us e th is p rod uct onl y in acc ord anc e wi th t he i nfo rma tio n pr ovi ded in the enclosed documentation and with the loc ally applicable standards and dire ctives. Any other application may cause personal injury or property damage.

For safety reasons, it is not permitted to modify the product or install components that are not explicitly recommended or distributed by SMA Solar Technology AG for the product. Unauthorized changes and modifications will void all warranty claims and the operating permission.

Any use of the product other than 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.

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2 Safety SMA Solar Technology AG

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 high voltages of the PV array

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

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

• Prior to performing any work on the inverter, always disconnect the inverter from voltage sources (see inverter manual).

• Do not touch any live components of the inverter.

Risk of burns due to hot inverter enclosure parts

Some parts of the inverter enclosure can get hot during operation.

• Do not touch any parts other than the lower enclosure lid of the inverter during operation.

Damage to the inverter due to electrostatic discharge

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

• Ground yourself before touching any component.

2.3 Symbol on the Product

Symbol Explanation

Danger to life due to electric shock The product operates at high voltages. All work on the product must be

carried out by qualified persons only.

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SMA Solar Technology AG 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 Multifunction relay* B 1 M20x1.5 cable gland* C 1 Installation manual D 1 M4x8 cylindrical screw* E1Washer M4*

* This component is not included if the multifunction relay is installed upon delivery.

Installation Manual MFR-NR-IA-en-21 9

4 Electrical Connection SMA Solar Technology AG

4 Electrical Connection

4.1 Safety during Electrical Connection

Danger to life due to high voltages of the PV array

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

• Prior to performing any work on the inverter, always disconnect the inverter from voltage sources (see inverter manual).

• Do not touch any live components of the inverter.

Damage to the inverter due to electrostatic discharge

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

• Ground yourself before touching any component.

4.2 Electrical Connection Procedure

Procedure See

1. Installation of the multifunction relay: Install the multifunction relay in

the inverter if it is not installed in the inverter upon delivery.

2. Selection of the operating mode: Select the operating mode in

which you want to use the multifunction relay.

3. Connection of the multifunction relay: Connect the multifunction

relay based on the operating mode and the corresponding wiring diagram.

4. Change of the operating mode: Change the operating mode of the

multifunction relay if you do not want to operate the multifunction relay in the operating mode Fault indication (FltInd) and do not plan to connect a display to the multifunction relay.

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Section 4.4, page11

Section 4.5, page17

Section 4.6, page18

Section 5, page24

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