SRO 021
S-DIAS Safety
Relay Output Module
Date of creation: 18.12.2013
Version date: 02.12.2019
Article number: 20-893-021-E
Publisher: SIGMATEK GmbH & Co KG
A-5112 Lamprechtshausen
Tel.: +43/6274/4321
Fax: +43/6274/4321-18
Email: office@sigmatek.at
WWW.SIGMATEK-AUTOMATION.COM
Copyright © 2013
SIGMATEK GmbH & Co KG
Translation from German
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 or SIL CL 3 (EN / IEC 62061) or
Performancelevel e (PL e) (EN ISO 13849-1/-2). The SRO 021
has:
• 2 Safe outputs (EN 61131-2; EN/IEC 62061 und EN ISO
13849-1/-2)
The safe outputs are used for the safety-oriented output of two
actuator signals to, for example, control relays, valves, etc.
The safety-related SRO 021 is ideal for use in systems with
optional modules and interface variables according to Safety
System Handbook, see homepage1.
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”
SRO 021 S-DIAS SAFETY RELAY OUTPUT MODULE
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Contents
1 Basic Safety Guidelines ......................................................... 4
1.1 General Information on Safety .................................................... 4
1.2 Further Safety Guidelines ............................................................ 5
1.3 General Requirements ................................................................. 6
2 Conformity with EU Guidelines ............................................10
2.1 Functional Safety Standards ..................................................... 10
2.2 EU Conformity Declaration ........................................................ 10
2.3 Safety-Relevant Parameters ...................................................... 11
2.4 Compatibility ............................................................................... 11
3 Technical Data .......................................................................12
3.1 Relay Output Specifications ...................................................... 12
3.2 Lifespan of the Relay Output Module depending on the
Number of Switching Cycles Per Year ..................................... 14
3.3 Relay Circuit ................................................................................ 15
3.4 Electrical Requirements ............................................................. 15
3.5 Miscellaneous ............................................................................. 17
3.6 Environmental Conditions ......................................................... 17
4 Mechanical Dimensions ........................................................18
5 Connector Layout ..................................................................19
5.1 Status LEDs ................................................................................. 20
5.2 Applicable Connectors ............................................................... 20
S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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5.3 Label Field ................................................................................... 21
6 Wiring ..................................................................................... 22
6.1 Wiring Example ........................................................................... 22
6.2 Note .............................................................................................. 23
7 Mounting ................................................................................ 24
8 Supported Cycle Times ........................................................ 26
8.1 Cycle Times below 1 ms (in µs) ................................................. 26
8.2 Cycle Times equal to or higher than 1 ms (in ms) ................... 26
9 Disposal ................................................................................. 26
SRO 021 S-DIAS SAFETY RELAY OUTPUT MODULE
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1 Basic Safety Guidelines
1.1 General Information on Safety
If the safety guidelines are not followed, dangers to personnel can arise that could lead to
serious injury or in worst cases, death. In less serious cases, systems and equipment can
be damaged.
The following symbols identify the individual risks as well as the degree of seriousness;
their respective meanings are briefly explained. You should therefore familiarize yourself
with the safety symbols and their meanings to prevent dangers and risks.
DANGER!
DANGER!
Identifies an immediate danger with high risk, which
can lead to immediate death or serious injury if not
avoided.
Indique un danger direct à haut risque d’un décès
immédiat ou des blessures graves si les consignes de
sécurité ne sont pas respectées.
WARNING
WARNING
Identifies a possible danger with a mid-level risk,
which can lead to death or (serious) injury if not
avoided.
Indique un danger possible d’un risque moyen de
décès ou de (graves) blessures si les consignes de
sécurité ne sont pas respectées.
CAUTION!
CAUTION!
Identifies a low risk danger, which can lead to injury or
property damage if not avoided.
Indique un danger avec un niveau de risque faible des
blessures légères ou des dommages matériels si les
consignes de sécurité ne sont pas respectées.
S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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1.2 Further Safety Guidelines
Warning, dangerous electrical voltage
Avertissement d’une tension électrique dangereuse
Hot surface warning
Avertissement d’une surface chaude
Danger for ESD-sensitive components
Les signes de danger pour les composants sensibles
aux décharges électrostatiques
This symbol identifies important or additional
information regarding the operation of the safety
modules.
Ce symbole indique des informations importantes ou
supplémentaires concernant le fonctionnement des
modules de sécurité particuliers.
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1.3 General Requirements
Technical
Documentation
This technical documentation is a component of this product.
• this document must be accessible in the vicinity of the
machine, since it contains important instructions.
• the technical documentation should be included in the
sale, rental or transfer of the product.
Documentation
technique
Cette documentation technique fait partie intégrale du produit.
• Gardez la toujours à portée de main et à la proximité
de la machine, car elle contient des informations
importantes.
• Distribuez la documentation technique aux secteurs de
la vente et/ou de la location du produit.
Acceptance of the
Safety Guidelines
Before handling the product belonging to this documentation,
the operating instructions and safety guidelines must be read.
SIGMATEK GmbH & Co KG accepts no liability for damages
resulting from non-compliance with the safety guidelines or the
relevant regulations.
Acceptance or the safety guidelines and the explanations in this
document, as well as the Safety System handbook are a basic
requirement for proper use. Therefore, read this operating
manual thoroughly and familiarize yourself with each of them.
More information on standards and regulations etc. can be
found in the system handbook.
Prendre connaissance
de consignes de
sécurité
Avant toute manipulation on doit impérativement prendre
connaissance de consignes de sécurité et du mode d’emploi.
SIGMATEK GmbH & Co KG n'assume aucune responsabilité
pour les dommages causés par le non-respect des consignes
de sécurité ou du mode d’emploi respectif.
La connaissance de consignes de sécurité et le contenu de
cette documentation ainsi que le mode d’emploi du système de
sécurité constitue une condition préalable à l'utilisation prévue.
Lisez ce mode d’emploi et assurez-vous de le comprendre
jusqu’aux détails.
Pour plus d'informations sur les normes et les lignes directrices,
etc., reportez-vous au mode d’emploi.
S-DIAS SAFETY RELAY OUTPUT MODULE SRO 021
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Qualified Personnel
Installation, assembly, programming and initial start-up,
operation, maintenance and decommissioning of control and
automation technology products in general, as well as safetyrelated products especially, 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 guidelines and standards of safety
technology.
Personnel qualifié
Installation, montage, programmation, mise en service,
l'exploitation, l'entretien et mise hors service de produits de
commande et d'automatisation en général, et de produits liés à
la sécurité, en particulier, ne peut être effectuée que par le
personnel qualifié.
On entend sous terme personnel qualifié les personnes ayant
acquis une formation professionnelle dispensé par un
spécialiste sur l’utilisation et surveillance des composants et
des systèmes de sécurité, ceci conformément aux lignes
directrices et les normes en vigueur.
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