SIST EN ISO 16092-4:2021

SLOVENSKI STANDARD
01-februar-2021
Nadomešča:
SIST EN 13736:2003+A1:2009
Varnost obdelovalnih strojev - Stiskalnice - 4. del: Varnostne zahteve za
pnevmatske stiskalnice (ISO 16092-4:2019)
Machine tools safety - Presses - Part 4: Safety requirements for pneumatic presses
(ISO16092-4:2019)
Werkzeugmaschinen Sicherheit - Pressen - Teil 4: Pneumatische Pressen (ISO 16092-
4:2019)
Sécurité des machines outils - Presses - Partie 4: Exigences de sécurité pour les
presses pneumatiques (ISO 16092-4:2019)
Ta slovenski standard je istoveten z: EN ISO 16092-4:2020
ICS:
25.120.10 Kovaški stroji. Stiskalnice. Forging equipment. Presses.
Škarje Shears
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 16092-4
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 25.080.01 Supersedes EN 13736:2003+A1:2009
English Version
Machine tools safety - Presses - Part 4: Safety
requirements for pneumatic presses (ISO 16092-4:2019)
Sécurité des machines outils - Presses - Partie 4: Werkzeugmaschinen - Sicherheit von Pressen - Teil 4:
Exigences de sécurité pour les presses pneumatiques Pneumatische Pressen (ISO 16092-4:2019)
(ISO 16092-4:2019)
This European Standard was approved by CEN on 29 July 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16092-4:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered . 4

European foreword
This document (EN ISO 16092-4:2020) has been prepared by Technical Committee ISO/TC 39 "Machine
tools" in collaboration with Technical Committee CEN/TC 143 “Machine tools - Safety” the secretariat of
which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by March 2021, and conflicting national standards shall
be withdrawn at the latest by March 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 13736:2003+A1:2009.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 16092-4:2019 has been approved by CEN as EN ISO 16092-4:2020 without any
modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of EU Directive 2006/42/EC aimed to be covered
This European Standard has been prepared under a Commission’s standardization request "M/396
Mandate to CEN and CENELEC for Standardisation in the field of machinery " to provide one voluntary
means of conforming to essential requirements of Directive 2006/42/EC of the European Parliament
and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast).
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
2006/42/EC
The relevant Essential Clause(s)/sub-clause(s) Remarks/Notes
Requirements of Directive of this EN
2006/42/EC
1.1.2 Principles of safety 5.1
integration
1.1.8 Seating not covered
1.2. Control systems 5.2/5.3.7/5.4/5.5
1.3.3 Risk due to falling or 5.3.6/5.3.7
ejected objects
1.3.7 Risks related to moving 5.5
parts
1.3.8 Choice of protection 5.5
against risks arising from
moving parts
1.3.9 Risks of uncontrolled 5.4.1/5.4.6/5.4.7/5.5
movements
1.4 Required characteristics of 5.3.2/5.4.1/5.4.7/5.5
guards and protective devices
1.5.3 Energy supply other than 5.2.3
electricity
1.5.4 Errors of fitting not covered
1.6.1 Machinery maintenance 5.5
1.7 Information 7
The relevant Essential Clause(s)/sub-clause(s) Remarks/Notes
Requirements of Directive of this EN
2006/42/EC
1.7.4 7.4
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
INTERNATIONAL ISO
STANDARD 16092-4
First edition
2019-11
Machine tools safety — Presses —
Part 4:
Safety requirements for pneumatic
presses
Sécurité des machines outils — Presses —
Partie 4: Exigences de sécurité pour les presses pneumatiques
Reference number
ISO 16092-4:2019(E)
©
ISO 2019
ISO 16092-4:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 16092-4:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 List of significant hazards . 2
5 Safety requirements and/or measures . 2
5.1 General . 2
5.2 Basic design considerations . 2
5.2.1 Hydraulic and pneumatic systems — Common features . 2
5.2.2 Pneumatic systems . 2
5.2.3 Hydraulic systems . 2
5.2.4 Electric systems . 2
5.3 Mechanical hazards in the tools area . 2
5.3.1 Major danger zone . 2
5.3.2 Safeguarding measures . 2
5.3.3 Other safety requirements . 2
5.3.4 Release of trapped persons between the tools . 2
5.3.5 Release of persons trapped inside enclosed areas . 3
5.3.6 Prevention of gravity fall during maintenance or repair . 3
5.3.7 Prevention of unintended gravity fall during production (down-stroking press) . 3
5.4 Control and monitoring system . 3
5.4.1 Control and monitoring functions . 3
5.4.2 Muting . 4
5.4.3 Selection devices . 4
5.4.4 Position sensors. 4
5.4.5 Control devices . 4
5.4.6 Valves . 4
5.4.7 Performance level of safety functions . 4
5.5 Tool-setting, trial strokes, maintenance and lubrication .19
5.6 Mechanical hazards — Other .19
5.7 Slips, trips and falls .19
5.8 Protection against other hazards .19
6 Verification of the safety requirements and/or measures .19
7 Information for use .20
7.1 General .20
7.2 Marking .20
7.3 Warnings .21
7.4 Instruction handbook .21
Annex A (informative) Additional significant hazards, hazardous situations and protective
measures .22
Annex B (normative) Calculation of minimum distances .23
Annex C (informative) Examples and principles of pneumatic press and power interlocking .24
Bibliography .27
ISO 16092-4:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 39, Machine tools, Subcommittee
SC 10, Safety.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
A list of all parts in the ISO 16092 series can be found on the ISO website.
iv © ISO 2019 – All rights reserved

ISO 16092-4:2019(E)
Introduction
This document is a type-C standard as stated in ISO 12100.
This document is of relevance, in particular, for the following stakeholder groups representing the
market players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);
— health and safety bodies (regulators, accident prevention organisations, market surveillance etc.)
Others can be affected by the level of machinery safety achieved with the means of the document by the
above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);
— machine users/employees (e.g. trade unions, organizations for people with special needs);
— service providers, e. g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).
The above-mentioned stakeholder groups have been given the possibility to participate at the drafting
process of this document.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the Scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or
type-B standards, the requirements of this type-C standard take precedence over the requirements of
the other standards for machines that have been designed and built according to the requirements of
this type-C standard.
INTERNATIONAL STANDARD ISO 16092-4:2019(E)
Machine tools safety — Presses —
Part 4:
Safety requirements for pneumatic presses
1 Scope
This document, in addition to ISO 16092-1, specifies the technical safety requirements and measures
to be adopted by persons undertaking the design, manufacture and supply of pneumatic presses which
are intended to work cold metal or material partly of cold metal.
This document deals with all significant hazards relevant for pneumatic presses, when they are used
as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer
(see Clause 4). All the phases of the lifetime of the machinery as described in ISO 12100:2010, 5.4, have
been taken into consideration.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4413:2010, Hydraulic fluid power — General rules and safety requirements for systems and their
components
ISO 12100:2010, Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 13849-1:2015, Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design
ISO 16092-1:2017, Machine tools safety — Presses — Part 1: General safety requirements
ISO 13851:2019, Safety of machinery — Two-hand control devices — Functional aspects and design
principles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12100:2010, ISO 13849-1:2015,
ISO 16092-1:2017 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
restraint valve
device which protects against a gravity fall of the slide/ram
3.2
overall closing time
time interval from the initiation of a slide movement at TDC to the termination of the movement (the
closing of tools) at BDC
ISO 16092-4:2019(E)
4 List of significant hazards
This clause contains all the significant hazards, hazardous situations and events identified by risk
assessment as significant for the machines defined in the scope and which require a specific action to
eliminate or reduce the risk.
These hazards are listed in ISO 16092-1:2017, Annex A. Additional hazards are listed in Table A.1.
5 Safety requirements and/or measures
5.1 General
Pneumatic presses shall comply with the safety requirements and/or protective/risk reduction
measures of this clause. In addition, the machine shall be designed according to the principles of
ISO 12100 for relevant but not significant hazards which are not dealt with by this document.
5.2 Basic design considerations
5.2.1 Hydraulic and pneumatic systems — Common features
ISO 16092-1:2017, 5.2.1, shall apply.
5.2.2 Pneumatic systems
ISO 16092 1:2017, 5.2.2, shall apply.
5.2.3 Hydraulic systems
In addition to the requirements given in ISO 16092-1:2017, 5.2.3, the following shall apply.
Where a pneumatic press is fitted with a pneumatic/hydraulic intensifier, the general requirements in
ISO 4413 shall be followed in designing the hydraulic system.
5.2.4 Electric systems
ISO 16092 1:2017, 5.2.4, shall apply.
5.3 Mechanical hazards in the tools area
5.3.1 Major danger zone
ISO 16092-1:2017, 5.3.1, shall apply.
5.3.2 Safeguarding measures
ISO 16092-1:2017, 5.3.2, shall apply
5.3.3 Other safety requirements
ISO 16092-1:2017, 5.3.3, shall apply.
5.3.4 Release of trapped persons between the tools
ISO 16092-1:2017, 5.3.4, shall apply.
2 © ISO 2019 – All rights reserved

ISO 16092-4:2019(E)
5.3.5 Release of persons trapped inside enclosed areas
ISO 16092-1:2017, 5.3.5, shall apply.
5.3.6 Prevention of gravity fall during maintenance or repair
In addition to the requirements given in ISO 16092-1:2017, 5.3.6, the following shall apply.
On presses with an opening stroke length of more than 500 mm and a depth of table of more than
800 mm, a mechanical restraint device shall be permanently fixed and integrated with the press. It can
be manually operated.
If an integrated device, when active, cannot be easily seen from the operator's position, an additional
clear indication of the position of the device shall be provided.
5.3.7 Prevention of unintended gravity fall during production (down-stroking press)
5.3.7.1 Measures shall be provided to prevent unintended gravity fall of the slide/ram in the production
mode with manual or automatic feed or removal (see Tables 1 and 2). Such a fall can be due to a failure of
the pneumatic system, mechanical failure or a failure of the electrical control system.
In this case, the following shall be provided:
— a mechanical restraint device;
— a pneumatic restraint device, as defined in 5.3.7.2; or
— a combination of a single valve pneumatic restraint device and a mechanical restraint device.
The restraint devices shall operate automatically and be effective whenever the tool is stopped and
access to the tools is possible for the operator.
5.3.7.2 The restraint device shall consist of one or more of the following measures, provided that they
are capable of holding up the slide/ram:
a) return spring;
b) clamping device;
c) two pneumatic restraint valves, one of which is fitted as close as possible to the cylinder outlet,
using flanged or welded pipework, capable of holding the slide/ram.
5.4 Control and monitoring system
5.4.1 Control and monitoring functions
5.4.1.1 In addition to the requirements given in ISO 16092-1:2017, 5.4.1, the following control and
monitoring functions shall apply.
5.4.1.2 For presses pneumatically controlled with a stroke length equal to or less than 30 mm, and
a maximum press force equal to or less than 1 000 N, the two-hand control device shall be fixed at the
minimum distance as calculated by Formula (1):
tt=×3 (1)
max
ISO 16092-4:2019(E)
where
t is the overall response time;
t is the maximum overall closing time (see also Annex B).
max
NOTE The factor 3 is intended to compensate the type of two-hand control device selected.
This subclause applies to presses fitted with two-hand control devices used for normal operation. They
shall at least correspond to type IIIB of ISO 13851;
It shall not be possible for the overall closing time to be exceeded by any adjustment.
5.4.1.3 Power interlocking, as defined in ISO 14119:2013, 3.31, may be provided for presses fitted with
interlocking guards. The guard interlocking device shall be positively linked with the valve to directly
control the flow of fluid to and from the cylinder (see Annex C).
5.4.2 Muting
In addition to the requirements given in ISO 16092-1:2017, 5.4.2, the following shall apply.
The means for setting the start point at which the safeguarding system is muted during the closing
stroke shall be:
— a position signal when the tools are closed; and
— a pressure signal or suitable alternative signals which actuate when the machine begins to apply
the force.
5.4.3 Selection devices
ISO 16092-1:2017, 5.4.3, shall apply.
5.4.4 Position sensors
ISO 16092-1:2017, 5.4.4, shall apply.
5.4.5 Control devices
ISO 16092-1:2017, 5.4.5, shall apply.
5.4.6 Valves
Manual override devices shall not be directly fitted to restraint valves. If manual override devices are
incorporated into other valves for test or maintenance purposes, they shall require the use of a tool to
operate the override.
This override shall be of the non-locking type.
5.4.7 Performance level of safety functions
Safety functions of a pneumatic press shall meet the requirements stated in the Tables 1 and 2. Figure 1
shows an example of all relevant parts of a control system of pneumatic press with a safety function to
stop any down stroke of the slide by ESPE using AOPD.
4 © ISO 2019 – All rights reserved

ISO 16092-4:2019(E)
Key
1 overall SRP/CS of a safety function "Stop slide down stroke by ESPE using AOPD"
2 "Input": ESPE using AOPD
3 "Logic": control parts (plausibility check of selection, Logic of AOPD, Logic of muting…)
4 output: pneumatic safety-related part
5 pneumatic actuator
Figure 1 — Example of a safety function with all relevant safety-related parts
The performance levels in Tables 1 and 2 are the minimum required performance levels and already
take the probability of occurrence into account.
ISO 16092-4:2019(E)
6 © ISO 2019 – All rights reserved
Table 1 — Summary of requirements for the operator safeguarding of the danger zones at the tools, die cushions, work-piece ejectors and
transfer systems areas (see ISO 16092-1:2017, 5.3.1) for different modes of operation — Mode of production: Single cycle, manual feed or
removal
Minimum Basis for the design of input, logic, output of safety function
required PL
Main safety Hazardous
Requirement for
Safety function (PL ) for safe-
r I — Input L — Logic O — Output
system movement
category of Input,
ty function
(sensor area) (control) (pre-actuator)
a
Logic and Output
and I, L and O
Closed tools used as
the only means of
protection
[see ISO 16092-1:2017,
5.3.2.1 a)]
Movement (e.g. closing
stroke) of the slide, die Cycle initiation/ Pneumatic system
Closed tools used in
g
PL a Cat B Any Any
cushions, workpiece stop (e.g. air valves)
a press with other
ejectors
operating modes with
different main safety
systems
[see ISO 16092-1:2017,
5.3.2.1 a)]
Fixed enclosing guard
Movement (e.g. closing
used as the only means
stroke) of the slide, die
Cycle initiation/ Pneumatic system
of protection g
cushions, workpiece PL a Cat B Any Any
stop (e.g. air valves)
ejectors and transfer
[see ISO 16092-1:2017,
systems
5.3.2.1 b)]
Interlocking guard
with or without guard
locking (with or
without early opening
Logic control shall
feature)
Movements (e.g. closing Cycle initiation by other act on the appropri-
Any but not actuated by
or
stroke) of the slide and control device than the PL a Cat B Any ate part of the pneu-
g
the guard itself
control guard (with or
die cushions guard matic or electrical
without early opening
control system
feature)
[see ISO 16092-1:2017,
5.3.2.1 c), d) and e)]
ISO 16092-4:2019(E)
Table 1 (continued)
Minimum Basis for the design of input, logic, output of safety function
required PL
Main safety Hazardous
Requirement for
Safety function (PL ) for safe-
r I — Input L — Logic O — Output
system movement
category of Input,
ty function
(sensor area) (control) (pre-actuator)
a
Logic and Output
and I, L and O
Logic control shall
act on the appropri-
Cycle initiation by control Interlocking device of
PL a Cat B Any ate part of the pneu-
Interlocking guard
guard the guard
matic or electrical
with or without guard
control system
locking (with or
without early opening
Stop by interlocking
feature)
device of guard without
Movements (e.g. closing
Interlocking device
or
guard locking
stroke) of the slide and
(2 sensors or equiva-
control guard (with or
e,f
die cushions
lent solution)
[see ISO 16092-1:2017,
without early opening
Safety-related Pneumatic system
b,c
5.3.2.7 and 5.3.2.10 b)]
feature) PL e Cat 4
logic (e.g. air valves)
Stop by interlocking device
[see ISO 16092-1:2017, Interlocking device
of guard with guard locking
5.3.2.1 c), d) and e)] with guard locking
(2 sensors or equiva-
[see ISO 16092-1:2017,
e,f
lent solution)
5.3.2.7 and 5.3.2.10 a)]
Interlocking guard Sensor or other suitable
with or without guard Movements (e.g. closing Cat 3 for input and detection device to
Conditional Safety-related Pre-actuator of the
j
locking (with or stroke) of the slide and PL d logic, Cat 2 for confirm that standstill
unlocking of guard logic guard locking
without early opening die cushions output of slide and die cushion
feature) is achieved
or
Muting in case of early
control guard (with or
Same as of the
opening guard and control
without early opening Movements (e.g. closing
safety function Position signal or suita-
guard without guard
feature) stroke) of the slide and — — —
on which mut- ble alternative
locking
die cushions
q
ing is acting
[see ISO 16092-1:2017,
[see ISO 16092-1:2017, 5.4.2]
5.3.2.1 c), d) and e)]
Interlocking guard Stop by interlocking
with or without guard device of guard without
Interlocking device
Safety-related Electrical, hydraulic
locking (with or guard locking b,d
PL d Cat 3 (2 sensors or equiva-
logic or pneumatic system
without early opening e,f
lent solution)
[see ISO 16092-1:2017,
feature)
Movements of work-
5.3.2.7 and 5.3.2.10 b)]
or
piece ejectors and
control guard (with or
transfer systems
Stop by interlocking device
Interlocking device
without early opening
of guard with guard locking
with guard locking Safety-related Electrical, hydraulic
feature)
b,d
PL d Cat 3
(2 sensors or equiva- logic or pneumatic system
[see ISO 16092-1:2017,
[see ISO 16092-1:2017, e,f
lent solution)
5.3.2.7 and 5.3.2.10 a)]
5.3.2.1 c), d) and e)]
ISO 16092-4:2019(E)
8 © ISO 2019 – All rights reserved
Table 1 (continued)
Minimum Basis for the design of input, logic, output of safety function
required PL
Main safety Hazardous
Requirement for
Safety function (PL ) for safe-
r I — Input L — Logic O — Output
system movement
category of Input,
ty function
(sensor area) (control) (pre-actuator)
a
Logic and Output
and I, L and O
Sensor or other suitable
Interlocking guard
detection device to
with or without guard
Cat 3 for input and
Conditional confirm that standstill Safety-related Pre-actuator of the
locking (with or j
PL c logic, Cat 2 for
unlocking of guard of work-piece ejectors logic guard locking
without early opening
output
and transfer systems is
feature)
Movements of work-
achieved
or
piece ejectors and
control guard (with or
Muting in case of early
transfer systems
without early opening Same as of the
opening guard and control
feature) safety function Position signal or suita-
guard without guard
— — —
on which mut- ble alternative
locking
[see ISO 16092-1:2017,
q
ing is acting
5.3.2.1 c), d) and e)]
[see ISO 16092-1:2017, 5.4.2]
Interlocking guard
with or without guard
locking (with or
without early opening Prevention of restart by an
Logic control shall
Movements of the
feature) additional safeguarding of
act on the appro-
slide, die cushions, Safety-related
or a control guard by AOPD n
PL e Cat 4 AOPD priate part of the
workpiece ejectors and logic
control guard (with or
electrical control
[see ISO 16092-1:2017,
transfer systems
without early opening
system
5.3.2.9]
feature)
[see ISO 16092-1:2017,
5.3.2.1 c), d) and e)]
Interlocking guard
with or without guard
locking (with or
Prevention of restart by an
without early opening
Logic control shall
additional safeguarding of a
Movements of the
feature)
Cat 1 for input, act on the appro-
control guard by interlock-
slide, die cushions, Safety-related
or o,p
PL c Cat 3 for logic and Interlocking device priate part of the
ing guard
workpiece ejectors and logic
control guard (with or
output electrical control
transfer systems
without early opening [see ISO 16092-1:2017,
system
feature) 5.3.2.9]
[see ISO 16092-1:2017,
5.3.2.1 c), d) and e)]
ISO 16092-4:2019(E)
Table 1 (continued)
Minimum Basis for the design of input, logic, output of safety function
required PL
Main safety Hazardous
Requirement for
Safety function (PL ) for safe-
r I — Input L — Logic O — Output
system movement
category of Input,
ty function
(sensor area) (control) (pre-actuator)
a
Logic and Output
and I, L and O
Interlocking guard with Stop by interlocking
Drive and
or without guard device of guard without
transmission
Safety-related Electric, hydraulic
locking guard locking
PL c Cat 1 Interlocking device
logic or pneumatic system
[see ISO 16092-1:2017,
Stop by interlocking device
[see ISO 16092-1:2017,
5.6.1]
of guard with guard locking
5.6.1]
Interlocking guard with
Sensor or other suitable
Drive and
or without guard
detection device to con-
transmission
Conditional Safety-related Pre-actuator of the
locking
PL c Cat 1 firm that standstill of
unlocking of guard logic guard locking
[see ISO 16092-1:2017,
drive and transmission
[see ISO 16092-1:2017,
5.6.1]
is achieved
5.6.1]
Interlocking guard
Same output than
Movements of the slide,
opened for tool set-
Cat 1 for input, those used for safe-
die cushions, work- Stop by interlocking device Safety-related
ting only
PL c Cat 3 for logic and Interlocking device guarding measures
piece ejectors and of guard logic
output used in production
[see ISO 16092-1:2017,
transfer systems
mode
5.3.2.1 c) and 5.5.6]
Logic control shall
ESPE using AOPD
Movements (e.g. closing Cycle initiation by other act on the appro-
Any but not actuated by
stroke) of the slide and control device than the PL a Cat B Any priate part of the
[see ISO 16092-1:2017 g
the AOPD itself
die cushions AOPD electrical control
5.3.2.1 f) and 5.3.2.11]
system
Logic control shall
ESPE using AOPD
Movements (e.g. closing act on the appro-
stroke) of the slide and Cycle initiation by AOPD PL a Cat B AOPD Any priate part of the
[see ISO 16092-1:2017
die cushions electrical control
5.3.2.1 f) and 5.3.2.11]
system
ESPE using AOPD
Movements (e.g. closing
Safety-related Pneumatic system
c
stroke) of the slide and Stop by AOPD PL e Cat 4 AOPD
[see ISO 16092-1:2017
logic (e.g. air valves)
die cushions
5.3.2.1 f) and 5.3.2.11]
ISO 16092-4:2019(E)
10 © ISO 2019 – All rights reserved
Table 1 (continued)
Minimum Basis for the design of input, logic, output of safety function
required PL
Main safety Hazardous
Requirement for
Safety function (PL ) for safe-
r I — Input L — Logic O — Output
system movement
category of Input,
ty function
(sensor area) (control) (pre-actuator)
a
Logic and Output
and I, L and O
Same as of the
Movements (e.g. closing
Muting
safety function Position signal or suita-
stroke) of the slide and — — —
on which mut- ble alternative
[see ISO 16092-1:2017, 5.4.2]
die cushions
q
ing is acting
Safety-related Electrical, hydraulic
d
Stop by AOPD PL d Cat 3 AOPD
logic or pneumatic system
Movements of work-
Muting
ESPE using AOPD
Same as of the
piece ejectors and
safety function Position signal or suita-
transfer systems
[see ISO 16092-1:2017, [see ISO 16092-1:2017,
— — —
on which mut- ble alternative
5.4.2] Not allowed for
5.3.2.1 f) and 5.3.2.11]
q
ing is acting
transfer system
Prevention of restart by an
Logic control shall
Movements of the
additional safeguarding by
act on the appro-
slide, die cushions, Safety-related
AOPD
PL d Cat 3 AOPD priate part of the
workpiece ejectors and logic
electrical control
[see ISO 16092-1:2017,
transfer systems
system
5.3.2.11 c)]
Prevention of restart by an
Logic control shall
Movements of the
ESPE using AOPD additional safeguarding by
Cat 1 for input, act on the appro-
slide, die cushions, Safety-related
interlocking guard
o,p
PL c Cat 3 for logic and Interlocking device priate part of the
[see ISO 16092-1:2017,
workpiece ejectors and logic
output electrical control
5.3.2.1 f) and 5.3.2.11] [see ISO 16092-1:2017,
transfer systems
system
5.3.2.11 c)]
Two-hand control
Movements (e.g. closing
device
Stop and cycle initiation by Push buttons of two- Safety-related Pneumatic system
b,c
stroke) of the slide and PL e Cat 4
g,h
two-hand control device hand control device logic (e.g. air valves)
[see ISO 16092-1:2017,
die cushions
5.3.2.1 g) and 5.3.2.12]
ISO 16092-4:2019(E)
Table 1 (continued)
Minimum Basis for the design of input, logic, output of safety function
required PL
Main safety Hazardous
Requirement for
Safety function (PL ) for safe-
r I — Input L — Logic O — Output
system movement
category of Input,
ty function
(sensor area) (control) (pre-actuator)
a
Logic and Output
and I, L and O
Stop and cycle initiation for
pneumatic presses with a
stroke length equal or less
Push buttons of two- Safety-related Pneumatic system
b,d
PL d Cat 3
than 30 mm and a maximum g,h
hand control device logic (e.g. air valves)
Movements (e.g. closing press force of 1 000 N or less
Two-hand control
stroke) of the slide and
(see 5.4.1.8)
device
die cushions
Same as of the
Muting
[see ISO 16092-1:2017,
safety function Position signal or suita-
5.3.2.1 g) and 5.3.2.12] — — —
(see ISO 16092-1:2017,
on which mut- ble alternative
5.4.2) q
ing is acting
Movements of work-
Stop and cycle initiation by Push buttons of two- Safety-related Electrical, hydraulic
b,d
piece ejectors and PL d Cat 3
g,h
two-hand control device hand control device logic or pneumatic system
transfer systems
Muting
Same as of the
Movements of work-
safety function Position signal or suita-
(see ISO 16092-1:2017,
piece ejectors and — — —
on which mut- ble alternative
5.4.2) Not allowed for
transfer systems
q
ing is acting
transfer system
Additional means to re-
strict access
Interlocking device
Two-hand control (see ISO 16092-1:2017,
b,d
PL d (2 sensors or equiva-
device 5.3.2.12)
lent solution)
[see ISO 16092-1:2017, Stop by interlocking device
Movements of the
5.3.2.1 g) and 5.3.2.12] of guard
slide, die cushions, Safety-related Electrical, hydraulic
Cat 3
workpiece ejectors and logic or pneumatic system
Additional means to re-
transfer systems
strict access
(see ISO 16092-1:2017,
d
PL d AOPD or AOPDDR
5.3.2.12)
Stop by ESPE using AOPD
or AOPDDR
ISO 16092-4:2019(E)
12 © ISO 2019 – All rights reserved
Table 1 (continued)
Minimum Basis for the design of input, logic, output of safety function
required PL
Main safety Hazardous
Requirement for
Safety function (PL ) for safe-
r I — Input L — Logic O — Output
system movement
category of Input,
ty function
(sensor area) (control) (pre-actuator)
a
Logic and Output
and I, L and O
Same as of the
Manual reset
Safety systems which safety func- Safety-related
Push button
(see ISO 16092-1:2017, l
need reset tion on which l logic
Any Cat for input , Logic control shall
Movements of the slide, m
5.4.1.3)
it is acting
Same category act on the appro-
die cushions, work-
as of the selected priate part of the
Same as the
piece ejectors and
Safety-related
Means of selection
safety functions for electrical control
highest PLr Selection means, e.g.
transfer systems
Safety systems which logic to check
logic and output system
among the selector switch, elec-
(see ISO 16092-1:2017,
need selection means pl
...