SIGMA TEK SRO 021 User manual

SRO 021
S-DIAS Safety
Relay Output Module
Instruction Manual
Date of creation: 18.12.2013
Version date: 05.12.2023
Article number: 20-893-021-E

Publisher: SIGMATEK GmbH & Co KG
A-5112 Lamprechtshausen
Tel.: [phone]
Fax: [phone]
Email: [email protected]
WWW.SIGMATEK-AUTOMATION.COM
Copyright © 2013
SIGMATEK GmbH & Co KG
Translation of the Original Instruction
All rights reserved. No part of this work may be reproduced, edited using an electronic system, duplicated or
distributed in any form (print, photocopy, microfilm or in any other process) without the express permission.
We reserve the right to make changes in the content without notice. The SIGMATEK GmbH & Co KG is not
responsible for technical or printing errors in the handbook and assumes no responsibility for damages that occur
through use of this handbook.

S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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S-DIAS Safety Relay Output Module SRO 021
The S-DIAS Safety SRO 021 relay output module has the safety
integrity level SIL3 (EN IEC 62061) or Performancelevel e (PL e)
(EN ISO 13849). The SRO 021 has:
2 Safe outputs (EN 61131-2; EN IEC 62061 und EN ISO 13849)
Both outputs are used for the Safety-oriented closing (NO) of an
electric circuit with a permissible rated voltage of 24 V DC and a
maximum continuous current of 6 A.
The SRO 021 is used for example, for switching higher power loads
or potential-isolated circuits –such as hydraulic valves or the
relaying of emergency stop circuits.
The safety-related SRO 021 is ideal for use in systems with
optional modules and interface variables according to Safety
System Handbook, see homepage
1
.
To use the SRO 021 in an application, at least one Safety CPU
module that regulates the synchronized communication with the
safety modules using safe bus telegrams is also required. This also
includes
•Processing the safe application and
•The distribution of configuration data to remote Safety modules.
1
Using the search function with the keyword “Safety System Handbook”

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Contents
1Introduction............................................................................. 5
1.1 Target Group/Purpose of this Operating Manual......................5
1.2 Important Reference Documentation .........................................5
1.3 Contents of Delivery.....................................................................5
2Basic Safety Guidelines......................................................... 6
2.1 Symbols Used...............................................................................6
2.2 Disclaimer......................................................................................8
2.3 General Safety Directives ............................................................9
2.4 Designated Use...........................................................................11
2.5 Software/Training .......................................................................12
3Standards and Directives......................................................13
3.1 Residual Risks ............................................................................13
3.2 Safety of the Machine or Equipment ........................................13
3.3 Directives.....................................................................................13
3.3.1 Functional Safety Standards..............................................................14
3.3.2 EU Conformity Declaration................................................................14
3.4 Safety-Relevant Parameters......................................................15
3.4.1 Mounting position horizontal 0-55 °C ambient temperature...............15
3.4.2 Mounting position horizontal 0-60 °C ambient temperature...............15
3.5 Compatibility...............................................................................16
4Type Plate...............................................................................17

S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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5Technical Data.......................................................................18
5.1 Relay Output Specifications......................................................18
5.2 Lifespan of the Relay Output Module depending on the
Number of Switching Cycles Per Year......................................21
5.3 Relay Circuit................................................................................22
5.4 Electrical Requirements.............................................................22
5.5 Miscellaneous .............................................................................24
5.6 Environmental Conditions.........................................................24
6Mechanical Dimensions........................................................25
7Connector Layout..................................................................26
7.1 Status LEDs.................................................................................27
7.2 Applicable Connectors...............................................................27
7.3 Label Field...................................................................................28
8Wiring.....................................................................................29
8.1 Wiring Example...........................................................................29
8.2 Note..............................................................................................30
9Assembly/Installation ...........................................................31
9.1 Check Contents of Delivery.......................................................31
9.2 Mounting......................................................................................32
10 Transport/Storage .................................................................34
11 Storage...................................................................................34

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12 Maintenance...........................................................................35
12.1 Service.........................................................................................35
12.2 Repair...........................................................................................35
13 Disposal..................................................................................35

S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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1 Introduction
1.1 Target Group/Purpose of this Operating Manual
This operating manual contains all information required for the operation of the product.
This operating manual is intended for:
•Project planners
•Technicians
•Commissioning engineers
•Machine operators
•Maintenance/test technicians
General knowledge of automation technology is required.
Further help and training information, as well as the appropriate accessories can be found on
our website www.sigmatek-automation.com.
Our support team is happily available to answer your questions.
Please see our website for our hotline number and business hours.
1.2 Important Reference Documentation
•Safety System Handbook
This and additional documents can be downloaded from our website or obtained through
support.
1.3 Contents of Delivery
1x SRO 021

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2 Basic Safety Guidelines
2.1 Symbols Used
The following symbols are used in the operator documentation for warning and danger
messages, as well as informational notes:
DANGER
Danger indicates that death or serious injury will occur, if the specified
measures are not taken.
To avoid death or serious injuries, observe all guidelines.
Danger indique une situation dangereuse qui, faute de prendre les
mesures adéquates, entraînera des blessures graves, voire mortelles.
Respectez toutes les consignes pour éviter des blessures
graves, voire mortelles.
WARNING
Warning indicates that death or serious injury can occur, if the specified
measures are not taken.
To avoid death or serious injuries, observe all guidelines.
Avertissement d’une situation dangereuse qui, faute de prendre les
mesures adéquates, entraînera des blessures graves, voire mortelles.
Respectez toutes les consignes pour éviter des blessures
graves, voire mortelles.
CAUTION
Caution indicates that moderate to slight injury can occur, if the
specified measures are not taken.
To avoid moderate to slight injuries, observe all guidelines.
Attention indique une situation dangereuse qui, faute de prendre les
mesures adéquates, peut entraîner des blessures assez graves ou
légères.
Respectez toutes les consignes pour éviter des blessures
graves, voire mortelles.

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CAUTION
Danger for ESD-sensitive components.
Les signes de danger pour les composants sensibles aux décharges
électrostatiques.
INFORMATION
Information
Provides important information on the product, handling or
relevant sections of the documentation, which require
attention.

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2.2 Disclaimer
INFORMATION
The contents of this operating manual were prepared with the greatest
care. However, deviations cannot be ruled out. This operating manual
is regularly checked and required corrections are included in the
subsequent versions. The machine manufacturer is responsible for the
proper assembly, as well as device configuration. The machine
operator is responsible for safe handling, as well as proper operation.
The current operating manual can be found on our website. If
necessary, contact our support.
Subject to technical changes, which improve the performance of the
devices. The following operating manual is purely a product
description. It does not guarantee properties under the warranty.
Please thoroughly read the corresponding documents and this
operating manual before handling a product.
SIGMATEK GmbH & Co KG is not liable for damages caused
through, non-compliance with these instructions or applicable
regulations.

S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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2.3 General Safety Directives
The Safety Directives in the other sections of this operating manual must be observed. These
instructions are visually emphasized by symbols.
INFORMATION
According to EU Directives, the operating manual is a component of a
product.
This operating manual must therefore be accessible in the vicinity of
the machine since it contains important instructions.
This operating manual should be included in the sale, rental or transfer
of the product, or its online availability indicated.
Regarding the requirements for Safety and health connected to the use
of machines, the manufacturer must perform a risk assessment in
accordance with machine directives 2006/42/EG before introducing a
machine to the market.
Operate the unit with devices and accessories approved by
SIGMATEK only.

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CAUTION
Handle the device with care and do not drop or let fall.
Prevent foreign bodies and fluids from entering the device.
The device must not be opened!
Manipulez l’appareil avec précaution et ne le laissez pas tomber.
Empêchez les corps étrangers et les liquides de pénétrer dans l’appareil.
L’appareil ne doit pas être ouvert!
If the device does not function as intended or has damage that could
pose a danger, it must be replaced!
En cas de fonctionnement non conforme ou de dommages pouvant
entraîner des risques, l'appareil doit être remplacé!
The module complies with EN 61131-2.
In combination with a facility, the system integrator must comply with EN
60204-1 standards.
For your own safety and that of others, compliance with the
environmental conditions is essential.
Le module est conforme à la norme EN 61131-2.
En combinaison avec une équipement, l’intégrateur de système doit
respecter la norme EN 60204-1.
Pour votre propre sécurité et celle des autres, le respect des conditions
environnementales est essential.

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2.4 Designated Use
The Safety functions implemented in the product are designed for use with safety applications
in a SIGMATEK control and meet the required conditions for safe operation according to SIL
3, HFT 1 n compliance with EN 62061 and according to PL e, Kat. 4 in compliance with EN
ISO 13849-1.
CAUTION
The instructions contained in this operating manual must be followed.
For error-free operation, proper transport and storage are essential.
Installation, mounting, programming, initial start-up, operation,
maintenance and decommissioning can only be performed by qualified
personnel.
Qualified personnel in this context are people, who have completed
training or have trained under supervision of qualified personnel and
have been authorized to operate and maintain safety-related
equipment, systems and facilities in compliance with the strict
directives and standards of safety technology (Functional Safety).
Les instructions contenues dans ce manuel technique doivent être
suivies.
Pour un fonctionnement sans erreur, le transport et le stockage
appropriés sont essentiels.
L’installation, le montage, la programmation, la mise en service initiale,
l’exploitation, la maintenance et la mise hors service ne peuvent être
effectués que par une personne qualifiée.
Dans ce contexte, on entend par personnel qualifié les personnes qui
ont suivi une formation ou qui ont été formées sous la supervision d’un
personnel qualifié et qui ont été autorisées à utiliser et à entretenir
l’équipement, les systèmes et les installations de sécurité
conformément aux directives et aux normes strictes de la technique de
sécurité (Sécurité fonctionnelle).
For your own safety and that of others, the product should be used for
their designated purpose only.
Correct EMC installation is also included under designated use.
Pour votre propre sécurité et celle des autres, le produit ne doivent être
utilisés qu’à des fins prévues.

SRO 021 S-DIAS SAFETY RELAY OUTPUT MODULE
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Une installation CEM correcte est également incluse dans l’utilisation
prévue.
Non-designated use consists of:
•any changes made to the module or the use of damaged
modules.
•use of the module inconsistent with the technical margins
described in this operating manual or the specifications
defined in the technical data.
L'utilisation non désignée consiste en:
•toute modification apportée au module ou l'utilisation des
modules endommagés.
•utilisation du module non conforme aux marges techniques
décrites dans ce manuel ou aux spécifications définies dans
les données techniques.
Before delivering the module, the machine manufacturer must ensure
that it is in “delivery condition”. See chapter Transport/Storage for more
information.
Avant de livrer le module, le constructeur de la machine doit s'assurer
qu'il est en "état de livraison". Voir le chapitre Transport/Storage pour
plus d’informations.
2.5 Software/Training
The application is created with the software LASAL CLASS 2 and LASAL SCREEN Editor,
the Safety application is created using the SAFETYDesigner. Basic information on Safety
(Functional Safety) can be found in the Safety System Handbook.
Training for the LASAL development environment, with which the product can be configured,
is provided. Information on our training schedule can be found on our website.

S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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3 Standards and Directives
3.1 Residual Risks
CAUTION
The following residual risks for the product must be included in the
system integrator's risk assessment:
•Release of non-environmentally safe substances, emissions
and unusual temperatures
•Possible effects of information technology devices
Les risques résiduels suivants pour le produit doivent être inclus dans
l'évaluation des risques de l'intégrateur de système:
•Libération de substances non respectueuses de
l'environnement, émissions et températures inhabituelles
•Effets possibles des dispositifs de technologie de l'information
3.2 Safety of the Machine or Equipment
INFORMATION
Observe all on-site rules and regulations for accident prevention and
occupational safety.
3.3 Directives
The product was constructed in compliance with the following European Union directives and
tested for conformity.

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3.3.1 Functional Safety Standards
EN IEC 62061 - Safety of machinery - Functional safety of safety-related control systems
EN ISO 13849-1 - Safety of machinery —Safety-related parts of control systems —Part 1:
General principles for design
EN ISO 13849-2 - Safety of machinery —Safety-related parts of control systems —Part 2:
Validation
3.3.2 EU Conformity Declaration
EU Declaration of Conformity
The product SRO 021 conforms to the following European directives:
•2006/42/EG Machine Directive
•2014/30/EU Electromagnetic Compatibility (EMC Directive)
•2011/65/EU “Restricted use of certain hazardous substances in
electrical and electronic equipment” (RoHS Directive)
The EU Conformity Declarations are provided on the SIGMATEK website.
See Products/Downloads or use the search function and the keyword “EU
Declaration of Conformity”.

S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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3.4 Safety-Relevant Parameters
3.4.1 Mounting position horizontal 0-55 °C ambient temperature
Relay Module
Safety Parameters
Safety Levels
SRO 021 including CPU module
SCP 011/SCP 111
PFHD= 9.7E-09 (1/h)
MTTFD= 240 years
DC = 98 %
SFF = 99 %
PL e / Cat. 4
SIL 3
The above failure probability (PFHD, MTTFDand SFF)) is based on the assumption that the
output relay is operated with 25.000 switching cycles per year (nop). If more switching cycles
per year are required, you can request the safety parameters from SIGMATEK via the
support.
3.4.2 Mounting position horizontal 0-60 °C ambient temperature
Relay Module
Safety Parameters
Safety Levels
SRO 021 including CPU-module
SCP 011/SCP 111
PFHD= 1.0E-08 (1/h)
MTTFD= 233 years
DC = 98 %
SFF = 99 %
PL e / Kat. 4
SIL 3
Relay Module
Safety Parameters
Safety Levels
SRO 021 including CPU-module
SCP 211/SCP 111-S
PFHD= 1.1E-08 (1/h)
MTTFD= 217 years
DC = 98 %
SFF = 99 %
PL e / Kat. 4
SIL 3
The above failure probability (PFHD, MTTFDand SFF)) is based on the assumption that the
output relay is operated with 25.000 switching cycles per year (nop). If more switching
cycles per year are required, you can request the safety parameters from SIGMATEK via
the support.

SRO 021 S-DIAS SAFETY RELAY OUTPUT MODULE
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INFORMATION
Time of use of the relay output module depending on the number of
switching cycles per year, see chapter 5.2.
3.5 Compatibility
INFORMATION
Compatibility
For compatibility of the S-DIAS Safety modules, see section
"Compatibility of S-DIAS Safety Modules" in the system handbook.

S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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4 Type Plate
HW: Hardware version
SW: Software version

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5 Technical Data
5.1 Relay Output Specifications
Number
2
Configuration
two-channel
Contact
normally open
Relay type
SIS212 21VDC SEN
Nominal voltage
+24 V DC
230 V AC
Switching voltage
maximum +30 V DC
maximum 250 V AC
Maximum continuous current
/channel
maximum 6 A at 55 °C
maximum 4 A at 60 °C
maximum 6 A at 55 °C
maximum 4 A at 60 °C
Short-circuit and overload
protection
external fuse category gG, maximum 6 A
Concurrence of all outputs
100 %
Response time
typically 10 ms (*)
fall time
typically 3 ms (*)
Miscellaneous
no protective circuit
(*) Pure relay characteristics not considering the application cycle time of the Safety Designer
This module exceeds the defined current consumption for S-DIAS Safety modules; therefore
it should be considered as two S-DIAS Safety modules.