oSIST prEN IEC 60947-5-7:2022

Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching elements - Requirements for proximity devices with analogue output

Niederspannungsschaltgeräte - Teil 5-7: Steuergeräte und Schaltelemente - Anforderungen an Näherungssensoren mit Analogausgang

Appareillage à basse tension - Partie 5-7: Appareils et éléments de commutation pour circuits de commande - Exigences pour les détecteurs de proximité à sortie analogique

Nizkonapetostne stikalne in krmilne naprave - 5-7. del: Krmilne naprave in stikalni elementi - Zahteve za bližinske naprave z analognim izhodom

General Information

• Status: Not Published
• Public Enquiry End Date: 31-Oct-2022
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: SKA - Switchgear and control gear
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 25-Aug-2022
• Due Date: 12-Jan-2023
• Completion Date: 10-Nov-2022
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/404 - Standardisation Mandate to CEN, CENELEC and ETSI for harmonized standard according to the Electro Magnetic Compatibility (EMC) Directive 2004/108/EC
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Mandate: M/552 - [C(2016) 7641 final] Standardisation request as regards harmonised standards in support of Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility
• Ref Project: prEN IEC 60947-5-7:2022 - Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching elements - Requirements for proximity devices with analogue output

Relations

• Revised: SIST EN 60947-5-7:2003 - Low-voltage switchgear and controlgear -- Part 5-7: Control circuit devices and switching elements - Requirements for proximity devices with analogue output
• Effective Date: 06-Jul-2021

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 60947-5-7:2022
01-oktober-2022
Nizkonapetostne stikalne in krmilne naprave - 5-7. del: Krmilne naprave in stikalni
elementi - Zahteve za bližinske naprave z analognim izhodom
Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching
elements - Requirements for proximity devices with analogue output
Niederspannungsschaltgeräte - Teil 5-7: Steuergeräte und Schaltelemente -
Anforderungen an Näherungssensoren mit Analogausgang
Appareillage à basse tension - Partie 5-7: Appareils et éléments de commutation pour
circuits de commande - Exigences pour les détecteurs de proximité à sortie analogique
Ta slovenski standard je istoveten z: prEN IEC 60947-5-7:2022
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
oSIST prEN IEC 60947-5-7:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60947-5-7:2022

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oSIST prEN IEC 60947-5-7:2022
121A/514/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60947-5-7 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-08-19 2022-11-11
SUPERSEDES DOCUMENTS:
121A/460/CD, 121A/476A/CC

IEC SC 121A : LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR
SECRETARIAT: SECRETARY:
France Mr Michaël LAHEURTE
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 65B
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

TITLE:
Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching
elements - Requirements for proximity devices with analogue output

PROPOSED STABILITY DATE: 2026

NOTE FROM TC/SC OFFICERS:
SC121A Officers support circulation of CDV for project IEC 60947-5-7 ED2.
Secretary Note: NC experts are kindly requested to refer their comments to line numbers.

Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for
any other purpose without permission in writing from IEC.

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1 CONTENTS
2
3 FOREWORD . 5
4 1 Scope . 7
5 2 Normative references. 7
6 3 Terms, definitions and list of abbreviations . 8
7 3.1 Basic definitions . 8
8 3.2 Operation of a proximity device . 8
9 3.3 Output element characteristics . 11
10 3.4 List of abbreviations . 14
11 4 Classification . 14
12 4.1 General . 14
13 5 Analog Characteristics . 15
14 5.1 General . 15
15 5.3 Rated and limiting values for the proximity device and output elements . 15
16 5.3.1 Voltages . 15
17 5.3.2 Currents . 15
18 5.3.3 Load conditions . 15
19 5.3.4 Linearity . 16
20 6 Product information . 16
21 6.1 Identification . 16
22 6.1.1 Adding information . 16
23 6.1.2 Specific information of 6.1.1 bc) Output characteristics . 16
24 6.4 Environmental information . 17
25 6.4.1 Environmentally conscious design process (ECD process) . 17
26 6.4.2 Procedure to establish material declaration . 17
27 7 Normal service, mounting and transport conditions . 17
28 8 Constructional and performance requirements . 17
29 8.1 General . 17
30 8.1.1 Load conditions . 17
31 8.2 Performance requirements . 17
32 8.2.5.2.1 Acceptance criteria . 17
33 8.5 Analog output limit values. 17
34 8.5.1 Environmental test conditions . 18
35 8.5.1.4 Non-Repeatability . 18
36 9 Tests . 19
37 9.1 General . 19
38 9.3.1 Test sequences . 19
39 9.6 Verification of the electromagnetic compatibility . 19
40 9.6.1 General . 19
41 9.8 Additional requirements for proximity switches with analog output . 20
42 9.8.1 Requirements for test programs and proper functioning verification
43 procedures (PFVPs) . 20
44 9.8.2 Verification of analog output . 21
45 9.8.3 Accuracy and related factors . 22
46 9.9 Testing of detection capabilities of physical sizes like operating distance,
47 speed, rotation speed, frequency, … . 22

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48 9.9.1 General . 22
49 Annex G (informative) Example of the determination of the conformity . 24
50 G.1 Example 1 of the determination of the conformity of an angle sensor, with
51 linear output characteristics . 24
52 G.2 Example 2 of the determination of the conformity of a position sensor, with
53 nonlinear output characteristics . 27
54 G.3 Test report and technical documentation . 29
55 G.3.1 Test report . 29
56 G.3.2 Technical documentation . 29
57 G.3.3 Total probable error TPE . 29
58 Annex H (informative) Overview tests and influence quantities . 31
59 H.1 Tests at the standard reference conditions . 31
60 H.2 Tests at ambient and process reference conditions for influence quantities . 32
61 Annex I (normative) Additional requirements for proximity switches with analog output
62 incorporating a built-in communication interface complying with IEC 61131-9 . 34
63 I.1 Scope . 34
64 I.3 Terms and definitions . 34
65 I.3.1 Basic definitions . 34
66 I.3.3 Output element characteristics . 34
67 I.3.3.12 Single drop digital communication interface (SDCI) . 34
68 I.5 Analog Characteristics . 34
69 I.5.4 Rated and limiting values for SDCI . 34
70 I.6 Product information . 34
71 I.8 Constructional and performance requirements . 34
72 I.8.1 General . 34
73 I.8.2 Performance requirements . 35
74 I.9 Tests . 35
75 I.9.1 General . 35
76 Annex J (informative) Main characteristics for proximity devices with analog output . 36
77 J.1 Properties of proximity devices with analog output . 36
78 J.2 Library of product properties and value lists . 37
79 J.2.1 Library of properties used in the device classes . 38
80 J.2.2 Value lists of properties . 40
81 Bibliography . 42
82
83 Figure 1 – Proximity device with analog output (PDAO), schematic block diagram
84 structure . 7
85 Figure 2 – Principle diagram of time values and their meanings . 13
86 Figure 3 – Principle diagram of limit values and their ranges . 14
87 Figure 4 – limit values of analog output signals . 18
88 Figure G.1 – Output values diagram corresponding to example of Table G.1 . 25
89 Figure G.2 – Error curves corresponding to example of Table G.1 . 26
90 Figure G.3 – Non-linearity error curves corresponding to the example of Table G.1 . 27
91 Figure G.4 – Output values diagram corresponding to example of Table G.2 . 28
92 Figure G.5 –Error curves corresponding to example of Table G.2 . 29
93
94 Table 1 – Range of analog voltage signals . 15

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95 Table 2 – Range of analog current signals . 15
96 Table 3 – Load conditions . 15
97 Table 4 – Analog output signal static characteristics . 16
98 Table 5 – Analog output dynamic characteristics . 17
99 Table 6 – Analog output overload immunity test . 21
100 Table 7 – Number of measurement cycles and number and position of test points . 22
101 Table G.1 – Example table for the errors of a linear sensor . 24
102 Table G.2 – Example table for the errors of a nonlinear sensor . 28
103 Table H.1 – Summary of the tests at the reference conditions . 31
104 Table H.2 – Summary of tests for influence quantities at the operating conditions . 32
105 Table J.1 – proximity devices with analog output . 36
106 Table J.2 – Library of properties used in the device classes . 38
107 Table J.3 – Value lists of properties . 40
108
109

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110 INTERNATIONAL ELECTROTECHNICAL COMMISSION
111 ____________
112
113 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
114
115 Part 5-7: Control circuit devices and switching elements –
116 Proximity devices with analog output
117
118 FOREWORD
119 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
120 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
121 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
122 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
123 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
124 preparation is entrusted to technical committees; any IEC National Committee interested in the subject deal t with
125 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
126 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
127 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
128 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
129 consensus of opinion on the relevant subjects since each technical committee has representation from all
130 interested IEC National Committees.
131 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
132 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
133 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
134 misinterpretation by any end user.
135 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
136 transparently to the maximum extent possible in their national and regional publications. Any divergence between
137 any IEC Publication and the corresponding national or regional publication shall be clearly indicated i n the latter.
138 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
139 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
140 services carried out by independent certification bodies.
141 6) All users should ensure that they have the latest edition of this publication.
142 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
143 members of its technical committees and IEC National Committees for any personal injury, property damage or
144 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
145 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
146 Publications.
147 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
148 indispensable for the correct application of this publication.
149 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
150 rights. IEC shall not be held responsible for identifying any or all such patent rights.
151 International Standard IEC 60947-5-7 has been prepared by subcommittee 121A: Low-voltage
152 switchgear and controlgear, of IEC technical committee 121: Switchgear and controlgear and
153 their assemblies for low voltage.
154 A list of all the parts in the IEC 60947 series, under the general title Low-voltage switchgear
155 and controlgear, can be found on the IEC website.
156 The text of this standard is based on the following documents:
Draft Report on voting
121A/XX/FDIS 121A/XX/RVD
157
158 Full information on the voting for its approval can be found in the report on voting indicated in
159 the above table.
160 The main changes with respect to the previous Edition 1 are the followings:
161 – New structure;

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162 – Update and expansion of definitions on analog output properties;
163 – Expanded performance requirements on analog output;
164 – Update and new normative references;
165 – Update of EMC requirements;
166 – Harmonization with IEC 62828 series;
167 – Harmonization with IEC 62683 and IEC 61987 definitions;
168 – Harmonization with IEC 61131-2 requirements;
169 – Update of the Annexe G Example of the determination of the conformity
170 – New Annex H Overview tests and influence quantities
171 – New Annex I Additional requirements for proximity switches with analog output incorporating
172 a built-in communication interface complying with IEC 61131-9
173 – New Annex J Main characteristics for proximity devices with analog output
174 The language used for the development of this International Standard is English.
175 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
176 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
177 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
178 described in greater detail at www.iec.ch/standardsdev/publications.
179 The committee has decided that the contents of this document will remain unchanged until the
180 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
181 specific document. At this date, the document will be
182 • reconfirmed,
183 • withdrawn,
184 • replaced by a revised edition, or
185 • amended.
186
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
187

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188 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
189
190 Part 5-7: Control circuit devices and switching elements –
191 Proximity devices with analog output
192
193
194
195 1 Scope
196 This part of IEC 60947 states the requirements for proximity devices with analog output (PDAO)
197 and/or a digital output to transmit a corresponding digital value representing the detected
198 sensing input. These devices can provide additional parameters. Figure 1 shows the schematic
199 principle of such a device. They may consist of one or more parts.
200 The requirements of IEC 60947-5-2 (proximity switches) apply with the additions and
201 modifications as stated in this document. The clause numbering in this document follows the
202 clause numbering of IEC 60947-5-2, modified where necessary.
203
204
205 Key
206 evaluation unit Evaluating electronic circuitry, e.g. MCU, ASIC component…
207 Figure 1 – Proximity device with analog output (PDAO), schematic block diagram
208 structure
209
210 This document does not apply to industrial process measurement transmitters according to
211 IEC 62828 series.
212 NOTE Analog proximity devices are not necessarily linear devices.
213 2 Normative references
214 The following documents are referred in the text in such a way that some or all of their content
215 constitutes requirements of this document. For dated references, only the edition cited applies.
216 For undated references, the latest edition of the referenced document (including any
217 amendments) applies.
218 IEC 60947-5-2:2019, Low-voltage switchgear and controlgear – Part 5-2: Control circuit devices
219 and switching elements – Proximity switches

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220 IEC 61131-2:2017, Industrial-process measurement and control – Programmable controllers –
221 Part 2: Equipment requirements and tests
222 IEC 61131-9:2022, Programmable controllers – Part 9: Single-drop digital communication
223 interface for small sensors and actuators (SDCI)
224
225 3 Terms, definitions and list of abbreviations
226 For the purposes of this document, the terms and definitions given in [IEC 60947-5-2:2019 and
227 the following apply.
228 ISO and IEC maintain terminological databases for use in standardization at the following
229 addresses:
230 • IEC Electropedia: available at https://www.electropedia.org/
231 • ISO Online browsing platform: available at https://www.iso.org/obp
232 3.1 Basic definitions
233 3.1.1
234 proximity device with analog output (PDAO)
235 device producing an output signal which varies continuously depending on the physical quantity
236 (e.g. distance, speed, rotation…) detected/calculated by the proximity device in relation to its
237 target object(s)
238 3.1.2
239 lower range value
240 minimum stated input value above which the output signal varies continuously
241 3.1.3
242 upper range value
243 maximum stated input value below which the output signal varies continuously
244 3.1.4
245 range of input values
246 defined by lower range value and upper range values of the sensing element detection
247 capability, or calculated value (e.g. distance, speed, rpm.), within which the limits of
248 uncertainty of the proximity device are specified
249 Note 1 to entry: A principle diagram describing the terms of 3.1.2 to 3.1.4 is given in Figure 3.
250 3.1.5
251 span
252 synonymous: range of input values
253 algebraic difference between the values of the upper and lower limits of the measuring range
254 Note 1 to entry: Limit has not to be intend as physical limits regarding the capabilities of the device, rather the
255 upper and lower values defined for the relevant application.
256 Note 2 to entry: The CDD code of this entry for Electronic Data Exchange is ABB785, modified (“other variables”
257 removed).
258 [SOURCE: IEC 60050-311:2001, 311-03-13, modified: Notes added]
259 3.2 Operation of a proximity device
260 3.2.1
261 linearity
262 ability of a proximity device to provide an indication having a linear relationship with a defined
263 quantity other than an influence quantity
264 Note 1 to entry: The method of expression of lack of linearity is different for different kinds of device and is
265 established in each particular instance.
266 [SOURCE: IEC 60050-311:2001, 311-06-05]

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267 3.2.2
268 conformity of the output signal curve
269 ability of a proximity device to provide an indication having a specified characteristic curve which can
270 be linear, logarithmic, parabolic, etc.
271 3.2.3
272 non-linearity
273 deviation from ideal behaviour for devices that have a linear input/out relationship, determined
274 from the curve plotted using the overall average of corresponding upscale and downscale errors
275 Note 1 to entry: Non-linearity can be calculated and expressed in one of three ways: – independent: line positioned
276 so as to minimize the maximum deviation; – terminal-based: line positioned so as to coincide with the actual
277 characteristic curve at the upper and lower range-values; – zero-based: line positioned so as to coincide with the
278 actual characteristic curve at the lower range-value.
279 Note 2 to entry: The corresponding properties can be found in the CDD.
280 Note 3 to entry: Linearity is defined in IEC 60050(300). definition 311-06-06.
281 Note 4 to entry: Non-linearity does not include hysteresis.
282 Note 5 to entry: Conformity is often used in conjunction with non-linear curves.
283 [SOURCE: IEC 61987-13:2016, modified: Notes added]
284 3.2.4
285 non-conformity of the output signal curve
286 deviation from ideal behaviour for devices that have a non-linear input/output relationship, determined
287 from the curve plotted using the overall average of corresponding upscale and downscale errors
288 Note 1 to entry: The non-conformity is defined as the closeness with which a calibration curve approximates to a
289 specified characteristic curve (which can be linear, logarithmic, parabolic, etc.).
290 3.2.5
291 true value (of a physical quantity value)
292 value consistent with the definition of a given particular quantity
293 Note 1 to entry: This term is used in the "true value" approach.
294 Note 2 to entry: Value that would be obtained by a perfect measurement.
295 Note 3 to entry: True values are by nature indeterminate.
296 Note 4 to entry: The indefinite article "a", rather than the definite article "the", is used in conjunction with "true
297 value" because there can be many values consistent with the definition of a given particular quantity .
298 [SOURCE: VIM 1.19, IEV 311-01-04]
299 3.2.6
300 conventional true value (of a physical quantity value)
301 value attributed to a particular quantity and accepted, sometimes by convention, as having an
302 uncertainty appropriate for a given purpose
303 Note 1 to entry: This term is used in the "uncertainty" approach.
304 Note 2 to entry: The "conventional true value" is sometimes called "assigned value", "best estimate of the value",
305 "conventional value" or "reference value". The term "reference value", in this sense, should not be confused with
306 "reference value" in the sense used in 311-07-01.
307 Note 3 to entry: Frequently, a large number of results of measurement of a quantity are used to establish a
308 conventional true value.
309 Note 4 to entry: An alternative concept of measurement uncertainty used for measurement instruments i
...