Siemens 3RB24 User manual

Industrial controls
Protection devices
SIRIUS 3RB24 electronic overload
relay for IO-Link
Equipment Manual
07/2022
NEB969165602000/RS-AA/003
Introduction 1
Safety information 2
Product description 3
Use planning 4
Con󹪝guring 5
Parameters 6
Process image of outputs
(PIQ) and inputs (PII) 7
Mounting/removal 8
Connecting 9
Operation 10
Diagnostics 11
Appendix A

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage
to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices
referring only to property damage have no safety alert symbol. These notices shown below are graded according to
the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Quali󹪝ed Personnel
The product/system described in this documentation may be operated only by personnel quali󹪝ed for the speci󹪝c
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Quali󹪝ed personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance
are required to ensure that the products operate safely and without any problems. The permissible ambient
conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identi󹪝ed by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may
be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this
publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Smart Infrastructure
Electrical Products
Postfach 10 09 53
93009 Regensburg
GERMANY
Ⓟ 07/2022 Subject to change
Copyright © Siemens AG 2011.
All rights reserved

Table of contents
1 Introduction ........................................................................................................................................... 7
1.1 Siemens Industry Online Support ......................................................................................... 8
1.2 Siemens Industry Online Support app................................................................................. 10
1.3 Support Request ................................................................................................................ 11
2 Safety information............................................................................................................................... 13
2.1 Security information .......................................................................................................... 13
2.2 Requirements for switching high-e󹪟ciency motors............................................................. 16
2.3 Voltages ............................................................................................................................ 17
2.4 Notes on the protection of device connections ................................................................... 18
3 Product description.............................................................................................................................. 19
3.1 Properties .......................................................................................................................... 19
3.2 System structure................................................................................................................ 20
3.3 Functions........................................................................................................................... 22
3.4 Operator controls and display elements.............................................................................. 25
3.5 System components........................................................................................................... 27
3.6 Accessories ........................................................................................................................ 30
3.7 Technical data.................................................................................................................... 33
3.7.1 Technical data in Siemens Industry Online Support............................................................. 33
4 Use planning........................................................................................................................................ 35
4.1 Applications....................................................................................................................... 35
4.2 Ambient conditions............................................................................................................ 36
4.3 Special application cases.................................................................................................... 37
5Con󹪝guring .......................................................................................................................................... 41
5.1 Con󹪝guring the IO-Link ...................................................................................................... 41
5.1.1 Combinations .................................................................................................................... 41
5.1.2 Con󹪝guring with STEP 7 and the S7-PCT Port Con󹪝guration Tool ......................................... 42
5.1.2.1 Basic procedure and prerequisites ...................................................................................... 42
5.1.2.2 Con󹪝guration..................................................................................................................... 43
5.1.3 Con󹪝guring with the S7-PCT port con󹪝guration tool (stand-alone) ...................................... 43
5.1.3.1 Application ........................................................................................................................ 43
5.1.3.2 Basic procedure and prerequisites ...................................................................................... 44
5.1.3.3 Con󹪝guration..................................................................................................................... 44
5.1.4 Block library for IO-Link (LIOLink) ....................................................................................... 45
5.1.5 Replacing an IO-Link device................................................................................................ 45
5.1.5.1 Replacing an IO-Link device according to the IO-Link communication speci󹪝cation V1.0 ...... 46
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5.1.5.2 Replacing an IO-Link device according to the IO-Link communication speci󹪝cation V1.1 ...... 47
6 Parameters........................................................................................................................................... 49
6.1 Parameters ........................................................................................................................ 49
6.2 "Cold start" parameter........................................................................................................ 51
6.3 "Ground fault detection" parameter.................................................................................... 52
6.4 "Rated operational current" parameter................................................................................ 53
6.5 "Trip class [CLASS]" parameter ............................................................................................ 54
6.6 "Response to overload - thermal motor model" parameter................................................... 55
6.7 "Response to overload - thermistor" parameter ................................................................... 56
6.8 "Thermistor - monitoring" parameter .................................................................................. 57
6.9 Operation with operator panel ........................................................................................... 58
6.9.1 "Operator panel available" parameter ................................................................................. 58
6.9.2 Parameter "Operation at Preset <> Actual Operation".......................................................... 58
7 Process image of outputs (PIQ) and inputs (PII) .................................................................................. 61
8 Mounting/removal ............................................................................................................................... 63
8.1 Mounting options .............................................................................................................. 63
8.2 Mounting position ............................................................................................................. 64
8.3 Snapping onto/o󹪜 DIN rail (snap-on mounting)................................................................... 65
8.4 Screw mounting ................................................................................................................ 66
8.5 Mounting the sealing cover................................................................................................ 67
8.6 Inserting the interface cover .............................................................................................. 68
8.7 Installing an operator panel ............................................................................................... 69
9 Connecting .......................................................................................................................................... 71
9.1 Connection via terminals.................................................................................................... 71
9.2 Replacing the removable terminals..................................................................................... 74
9.3 Connecting the solid-state overload relay for IO-Link........................................................... 77
10 Operation............................................................................................................................................. 81
10.1 Setting the current (rated operational current) and trip class............................................... 81
10.2 Activating/deactivating thermistor protection ..................................................................... 86
10.3 Outputting an analog signal............................................................................................... 87
10.4 Carrying out self-test.......................................................................................................... 88
10.5 Performing a reset ............................................................................................................. 91
10.5.1 Manual reset...................................................................................................................... 92
10.5.2 Automatic reset ................................................................................................................. 93
10.6 Operation using the operator panel.................................................................................... 95
Table of contents
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11 Diagnostics ........................................................................................................................................ 101
11.1 Indication of the operating state ...................................................................................... 101
11.2 Auxiliary contacts ............................................................................................................ 103
11.3 Fault codes (only in the case of non-acknowledgeable faults) ........................................... 104
11.4 IO-Link diagnostics........................................................................................................... 106
A Appendix............................................................................................................................................ 109
A.1 Dimension drawings (dimensions in mm)......................................................................... 109
A.1.1 Current measuring module .............................................................................................. 110
A.1.1.1 Current measuring module 3RB2906-2BG1 and 3RB2906-2DG1 ....................................... 110
A.1.1.2 Current measuring module 3RB2906-2JG1 ....................................................................... 111
A.1.1.3 Current measuring module 3RB2956-2TG2....................................................................... 112
A.1.1.4 Current measuring module 3RB2956-2TH2....................................................................... 113
A.1.1.5 Current measuring module 3RB2966-2WH2 ..................................................................... 114
A.2 Circuit diagrams............................................................................................................... 115
A.2.1 Internal circuit diagram .................................................................................................... 115
A.2.2 Sample circuit diagrams ................................................................................................... 115
A.3 Data sets.......................................................................................................................... 119
A.3.1 Structure of the data sets ................................................................................................. 119
A.3.2 IO-Link communication parameters.................................................................................. 119
A.3.3 Identi󹪝cation data............................................................................................................ 120
A.3.4 Diagnostics - data set (index) 92 ...................................................................................... 121
A.3.5 Measured value - data set (index) 94 ................................................................................ 123
A.3.6 Preset con󹪝guration - data set (index) 130........................................................................ 124
A.3.7 Technology functions - data set (index) 131 ..................................................................... 124
A.4 References....................................................................................................................... 126
Index .................................................................................................................................................. 127
Table of contents
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Table of contents
SIRIUS 3RB24 electronic overload relay for IO-Link
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Introduction 1
Purpose of the manual
This manual describes the 3RB24 solid-state overload relay for IO-Link. The manual supplies the
following information:
• Information for integrating the solid-state overload relay into the system environment.
• Information about the necessary hardware and software components.
• Information about the parameters that can be set on the overload relay or via the IO-Link.
• Information on installing, connecting and operating the overload relay.
• Technical information such as dimension drawings, device circuit diagrams and data sets in
the appendix.
The information in this manual enables you to con󹪝gure, commission and diagnose the 3RB24
solid-state overload relay.
Required basic knowledge
To understand these operating instructions you should have a general knowledge of automation
engineering and low-voltage switchgear.
Scope of the manual
This manual is valid for the 3RB24 solid-state overload relay for IO-Link. It describes the
components that are valid at the time of publication.
Further documentation
To install and connect the current measuring module, you require the operating instructions of
the current measuring module used. For additional information on the Siemens IO-Link masters,
please refer to the respective manuals for the electronic modules 4SI IO-Link and 4SI SIRIUS
(IP20) and ET 200eco PN (IP65).
The Appendix "References (Page 126)" has a list of the operating instructions.
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1.1 Siemens Industry Online Support
Information and service
At Siemens Industry Online Support you can obtain up-to-date information from our global
support database:
• Product support
• Application examples
• Forum
• mySupport
Link: Siemens Industry Online Support (https://support.industry.siemens.com/cs/de/en)
Product support
You can 󹪝nd information and comprehensive know-how covering all aspects of your product
here:
•FAQs
Answers to frequently asked questions
•Manuals/operating instructions
Read online or download, available as PDF or individually con󹪝gurable.
•Certi󹪝cates
Clearly sorted according to approving authority, type and country.
•Characteristics
For support in planning and con󹪝guring your system.
•Product announcements
The latest information and news concerning our products.
•Downloads
Here you will 󹪝nd updates, service packs, HSPs and much more for your product.
•Application examples
Function blocks, background and system descriptions, performance statements,
demonstration systems, and application examples, clearly explained and represented.
•Technical data
Technical product data for support in planning and implementing your project
Link: Product support (https://support.industry.siemens.com/cs/ww/en/ps)
mySupport
The following functions are available in your personal work area "mySupport":
•Support Request
Search for request number, product or subject
•My 󹪝lters
With 󹪝lters, you limit the content of the online support to di󹪜erent focal points.
Introduction
1.1 Siemens Industry Online Support
SIRIUS 3RB24 electronic overload relay for IO-Link
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•My favorites
With favorites you bookmark articles and products that you need frequently.
•My noti󹪝cations
Your personal mailbox for exchanging information and managing your contacts. You can
compile your own individual newsletter in the "Noti󹪝cations" section.
•My products
With product lists you can virtually map your control cabinet, your system or your entire
automation project.
•My documentation
Con󹪝gure your individual documentation from di󹪜erent manuals.
•CAx data
Easy access to CAx data, e.g. 3D models, 2D dimension drawings, EPLAN macros, device
circuit diagrams
•My IBase registrations
Register your Siemens products, systems and software.
Introduction
1.1 Siemens Industry Online Support
SIRIUS 3RB24 electronic overload relay for IO-Link
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1.2 Siemens Industry Online Support app
Siemens Industry Online Support app
The Siemens Industry Online Support app provides you access to all the device-speci󹪝c
information available on the Siemens Industry Online Support portal for a particular article
number, such as operating instructions, manuals, data sheets, FAQs etc.
The Siemens Industry Online Support app is available for Android and iOS:
Android iOS
Introduction
1.2 Siemens Industry Online Support app
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1.3 Support Request
After you have registered, you can use the Support Request form in the online support to send
your question directly to Technical Support:
Support Request: Internet (http://www.siemens.com/sirius/technical-assistance)
Recycling and disposal
The 3RB24 solid-state overload relays for IO-Link can be recycled, as they are low in pollutants.
For environmentally-friendly recycling and disposal of your electronic waste, please contact a
company certi󹪝ed for the disposal of electronic waste.
Introduction
1.3 Support Request
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Introduction
1.3 Support Request
SIRIUS 3RB24 electronic overload relay for IO-Link
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Safety information 2
2.1 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is necessary
to implement – and continuously maintain – a holistic, state-of-the-art industrial security
concept. Products and solutions from Siemens constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected to
an enterprise network or the Internet if and to the extent such a connection is necessary and only
when appropriate security measures (e.g. 󹪝rewalls and/or network segmentation) are in place.
For additional information on industrial security measures that can be implemented, please visit:
https://www.siemens.com/industrialsecurity
Working on the system
DANGER
Hazardous voltage!
Will cause death or serious injury.
Turn o󹪜 and lock out power before working on this equipment.
Restricted touch protection
DANGER
Restricted touch protection!
Will cause death or serious injury.
The 3RB24 overload relay for IO-Link corresponds to degree of protection in accordance with
IP20 (IEC 60529) and is safe to touch in accordance with DIN VDE 0106, Part 100.
Touching the terminals can result in an electric shock.
Commissioning and maintenance must be carried out by quali󹪝ed personnel only.
Cover the terminals of the current measuring module (size S6 and S10 / S12) with the
appropriate terminal covers.
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Intended use
WARNING
Intended use
Can Cause Death, Serious Injury, or Property Damage.
The devices may only be used for the applications described in the catalog and the technical
description, and only in conjunction with equipment or components from other manufacturers
which have been approved or recommended by Siemens.
This product can function correctly and reliably only if it is transported, stored, assembled, and
installed correctly, and operated and maintained as recommended.
Before you run any sample programs or programs that you have written yourself, make sure
that running the plant cannot cause injury to anyone else or damage to the machine itself.
EU note: Start-up/commissioning is absolutely prohibited until it has been ensured that the
machine in which the component described here is to be installed ful󹪝lls the regulations/
speci󹪝cations of Machinery Directive 89/392/EEC.
Important note for maintaining the operational safety of your system
WARNING
Hazardous voltage!
Can Cause Death, Serious Injury, or Property Damage.
Please take note of our latest information
Systems with safety-related characteristics are subject to special operational safety
requirements on the part of the operator. The supplier is also obliged to comply with certain
actions when monitoring the product. For this reason, we publish a special newsletter
containing information on product developments and features that are (or could be) relevant
to operation of safety-related systems. You should subscribe to the corresponding newsletter
in order to obtain the latest information and to allow you to modify your plant accordingly.
Please go to the Internet (http://www.automation.siemens.com/WW/newsletter/
guiThemes2Select.aspx?subjectID=2&lang=en)
There, you can register for the following newsletter:
• IO-Link (in the Automation folder).
To receive this newsletter, select the "Updates" check box.
Safety information
2.1 Security information
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ESD guidelines
ESD components are destroyed by voltage and energy far below the limits of human perception.
Voltages of this kind occur as soon as a device or an assembly is touched by a person who is not
electrostatically discharged. ESD components which have been subject to such voltage are
usually not recognized immediately as being defective, because the malfunction does not occur
until after a longer period of operation.
NOTICE
Damage to the solid-state overload relay from electrostatic charging!
The solid-state overload relay contains components that are sensitive to electrostatic
discharge. These components will be destroyed or damaged by incorrect handling.
Observe ESD guidelines when handling and installing the devices.
Connection is only permitted when the power adapters have been deactivated (PELV power
adapter in accordance with IEC EN 50178).
• You must discharge your body electrostatically immediately before touching an electronic
component. To do this, touch a conductive, grounded object, e.g., a bare metal part of a
switch cabinet or the water pipe.
• Always hold the component by the plastic enclosure.
• Electronic modules should not be brought into contact with electrically insulating materials
such as plastic 󹪝lm, plastic parts, insulating table supports or clothing made of synthetic
󹪝bers.
• Always place electrostatic sensitive devices on conductive bases.
• Always store and transport electronic modules or components in ESD-safe conductive
packaging, e.g. metallized plastic or metal containers. Leave the component in its
packaging until installation.
Safety information
2.1 Security information
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2.2 Requirements for switching high-e󹪟ciency motors
The increased requirements for protection devices and switchgear when switching high-
e󹪟ciency motors are covered by the new utilization category AC‑3e introduced in
the IEC 60947‑4‑1 product standard.
The utilization category AC‑3e takes into account the higher switch-on characteristic of
e󹪟ciency-enhanced motors. This is re󹪞ected, for example, in a higher starting current when
starting squirrel-cage motors.
All SIRIUS protection devices and switchgear that are subject to the IEC 60947‑4‑1 product
standard meet the increased requirements in accordance with utilization category AC‑3e and
are suitable for use with high-e󹪟ciency motors.
Safety information
2.2 Requirements for switching high-e󹪟ciency motors
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2.3 Voltages
The speci󹪝cations for 3-phase line supply according to IEC 60947‑4‑1 are valid for the following
line system con󹪝gurations:
Voltage speci󹪝cation Ue in the
Equipment Manual
Line system con󹪝gurations
Three-phase four-wire systems Three-phase three-wire systems
[V] [V] [V]
230 -- 230
400 230 / 400 400
440 260 / 440 440
500 -- 500
690 400 / 690 690
1000 -- 1000 (3RB2956 and 3RB2966)
-- not speci󹪝ed
Safety information
2.3 Voltages
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2.4 Notes on the protection of device connections
The speci󹪝cations for short-circuit protection (fuses, circuit breakers, or miniature circuit
breakers) are available for the device connections of the main circuit and the auxiliary circuit.
In order to ensure a holistic view for the protection of the device connections, the manufacturer
is obliged to provide all relevant information for short-circuit protection and overcurrent
protection.
If, for example, device connections for the control supply voltage, the supply voltage, or digital
inputs/digital outputs are not connected to self-limiting current sources or energy sources, you
can 󹪝nd the relevant information in the Equipment Manual or the technical data sheet.
Safety information
2.4 Notes on the protection of device connections
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Product description 3
3.1 Properties
Solid-state overload relay for IO-Link
The solid-state overload relay, comprising the 3RB24 evaluation module and a 3RB29 current
measuring module, protects electrical equipment (e.g. three-phase motors) with two di󹪜erent
protection mechanisms: overload protection and thermistor protection. Ground fault detection
can also be enabled via IO-Link.
In conjunction with the 3RT contactors, the solid-state overload relay for IO‑Link can be used as
a direct-on-line starter, reversing starter or, with the help of an additional circuit, as a star-delta
(wye-delta) starter. It is possible to read out diagnostics data, such as the current, via IO‑Link and
to further process this data in the higher-level controller.
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3.2 System structure
Device concept
The 3RB24 solid-state overload relay has a modular device concept. Each device consists of a
motor-current-independent evaluation module, and a motor-current-dependent current
measuring module. Both modules are connected electrically to each other by connecting cable
via the interface.
Optionally, the 3RA6935‑0A operator panel can be connected to the front of the evaluation
module.
Requirements
You require the following tools for system setup:
• 1 x evaluation module 3RB2483‑4A .1
• 1 x current measuring module 3RB29.6‑2...
• 1 x connecting cable 3RB2987‑2.
Note
The connecting cable 3RB2987‑2B for linking the evaluation module and the current
measuring module is only to be used when the evaluation module is mounted direct on the
current measuring module.
System structure
The following graphic illustrates the design principle of a system.
...
3
1
2
①Evaluation module 3RB2483‑4A .1
②Current measuring module 3RB29.6‑2...
③Connecting cable 3RB2987‑2.
Figure 3-1 System structure
Product description
3.2 System structure
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