SMA MFR01-10 User manual

MFR-NR-IA-en-23 | Version 2.3 ENGLISH
Installation Manual
MULTIFUNCTION RELAY

Legal Provisions SMA Solar Technology AG
2 MFR-NR-IA-en-23 Installation Manual
Legal Provisions
The information contained in these documents is the 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.
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All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
The BLUETOOTH® word mark and logos are registered trademarks owned by 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.
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SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
E-mail: [email protected]
© 2004 until 2016 SMA Solar Technology AG. All rights reserved.

SMA Solar Technology AG Table of Contents
Installation Manual MFR-NR-IA-en-23 3
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4.1 Mounting Position and Cable Route . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4.2 Installing the Multifunction Relay in the Sunny Boy Smart Energy . . 15
4.4.3 Installing the Multifunction Relay in the Sunny Boy / Windy Boy or
Sunny Tripower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.5 Selecting the Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6 Connecting the Multifunction Relay. . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.6.1 Connection Options for the Multifunction Relay . . . . . . . . . . . . . . . 20
4.6.2 Connecting to the Multifunction Relay . . . . . . . . . . . . . . . . . . . . . . . 24
5 Changing the Operating Mode of the Multifunction Relay . . 26
6 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8 EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Table of Contents SMA Solar Technology AG
4 MFR-NR-IA-en-23 Installation Manual

SMA Solar Technology AG 1 Information on this Document
Installation Manual MFR-NR-IA-en-23 5
1 Information on this Document
1.1 Validity
This document is valid for device type "MFR01-10".
1.2 Target Group
The activities described in this document must only be performed by qualified persons.
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 and all safety information
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 be
performed by qualified persons only
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

1 Information on this Document SMA Solar Technology AG
6 MFR-NR-IA-en-23 Installation Manual
1.4 Typographies
1.5 Nomenclature
1.6 Display of Parameters
Depending on the type of communication, (e.g. RS485, BLUETOOTH or Speedwire/Webconnect)
the parameters and messages are displayed differently on the communication products.
This document uses both methods of displaying parameters.
Typography Usage Example
bold • Parameter
• 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.
Complete designation Designation in this document
Multifunction relay Multifunction relay, product
Sunny Boy, Windy Boy, Sunny Tripower,
Sunny Boy Smart Energy
Inverter
PV system, small wind turbine system System
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

SMA Solar Technology AG 2 Safety
Installation Manual MFR-NR-IA-en-23 7
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19).
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
• STP 15000TL-30, STP 20000TL-30, STP 25000TL-30
• STP 10000TLEE-JP-10
• STP 20000TLEE-JP-11
• STP 25000TL-JP-30
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.
For safety reasons, it is not allowed 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 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.

2 Safety SMA Solar Technology AG
8 MFR-NR-IA-en-23 Installation Manual
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 or property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
2.3 Symbol on the Product
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 all voltage
sources (see the 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.
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.

SMA Solar Technology AG 3 Scope of Delivery
Installation Manual MFR-NR-IA-en-23 9
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*
* This component is not included if the multifunction relay is installed upon delivery.
B 1 M20x1.5 cable gland*
C 1 Installation manual
D 1 M4x8 cylindrical screw*
E1Washer M4*

4 Electrical Connection SMA Solar Technology AG
10 MFR-NR-IA-en-23 Installation Manual
4 Electrical Connection
4.1 Safety during Electrical Connection
4.2 Electrical Connection Procedure
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 all voltage
sources (see the 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.
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.
Section 4.4, page12
2. Selection of the operating mode: Select the operating mode in
which you want to use the multifunction relay.
Section 4.5, page19
3. Connection of the multifunction relay: Connect the multifunction
relay based on the operating mode and the corresponding wiring
diagram.
Section 4.6, page20
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.
Section 5, page26