1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Programmable Controllers Part 2: Equipment Requirements and Tests UL 61131-2 STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSIO
2、N FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Programmable Controllers Part 2: Equipment Requirements and Tests, UL 61131-2 Second Edition, Dated June 5, 2008 Summary of Topics Revision pages are being i
3、ssued to reect the recent reaffirmation of UL 61131-2 as an American National Standard. No changes in requirements are involved. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this
4、 publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but
5、 not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inabi
6、lity to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Stand
7、ards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers comput
8、er system. MARCH 24, 2017 UL 61131-2 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 24, 2017 UL 61131-2 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM
9、 UL JUNE 5, 2008 (Title Page Reprinted: March 24, 2017) 1 UL 61131-2 Standard for Programmable Controllers Part 2: Equipment Requirements and Tests First Edition Not Printed Second Edition June 5, 2008 This ANSI/UL Standard for Safety consists of the Second Edition including revisions through March
10、24, 2017. The most recent designation of ANSI/UL 61131-2 as a Reaffirmed American National Standard (ANS) occurred on March 24, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or Preface. The National Difference Page and IEC Foreword are also exclud
11、ed from the ANSI approval of IEC-based standards. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. ULs Standards for Sa
12、fety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. AN
13、SI/UL 61131-2-2008 (R2017)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 5, 2008 UL 61131-2 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Prefa
14、ce (UL) 8 NATIONAL DIFFERENCES . 9 FOREWORD . 10 INTRODUCTION . 12 1 General .13 1.1 Scope and object 13 1.2 Compliance with this standard 14 1.3 Normative references 15 2 Type tests 17 2.1 Equipment to be tested (equipment under test/EUT) .18 2.2 Special features for immunity and EMC tests .19 2.3
15、Withstand test conditions .20 2.4 Verication procedure 20 2.5 Requirements for test programmes and proper functioning verication procedures (PFVPs) to be provided by the manufacturer .21 2.6 General conditions for tests .22 3 Terms and denitions 22 4 Normal service conditions and requirements 28 4.1
16、 Climatic conditions and requirements .29 4.2 Mechanical service conditions and requirements 30 4.3 Transport and storage conditions and requirements 32 4.4 Electrical service conditions and requirements 33 4.5 Special conditions and requirements .34 5 Functional requirements 34 5.1 Functional power
17、 supply and memory back-up requirements 36 5.2 Digital I/Os 37 5.3 Analogue I/Os .47 5.4 Communication interface requirements .48 5.5 Main processing unit(s) and memory(ies) of the PLC-system requirements .48 5.6 Remote input/output stations (RIOSs) requirements 48 5.7 Peripherals (PADTs, TEs, HMIs)
18、 requirements 49 5.8 PLC-system self-tests and diagnostics requirements .49 5.9 Functional earthing 50 5.10 Mounting requirements 50 5.11 General marking requirements 50 5.12 Requirements for normal service and functional type tests and verications . .51 5.13 Requirements for information on normal s
19、ervice and function .51 6 Normal service and functional type tests and verications .51 6.1 Climatic tests 51 6.2 Mechanical tests 53 6.3 Verication of special functional requirements for power ports and memory back-up Special immunity limits for power ports 55 6.4 Verication of input/output requirem
20、ents 61 6.5 Verication of communication interface requirements 65 6.6 Verication of MPU requirements 65 6.7 Verication of remote I/O stations .65 JUNE 5, 2008 UL 61131-2 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.8 Verication of peri
21、pheral (PADTs, TEs, HMIs) requirements 66 6.9 Verication of PLC-system self-tests and diagnostics 66 6.10 Verication of markings and manufacturers documentation 66 7 General information to be provided by the manufacturer 66 7.1 Information on type and content of documentation .66 7.2 Information on
22、compliance with this standard .67 7.3 Information on reliability 68 7.4 Information on other conditions 68 7.5 Information on shipping and storage .68 7.6 Information on a.c. and d.c. power supply 68 7.7 Information on digital inputs (current sinking) 69 7.8 Information on digital outputs for altern
23、ating currents (current sourcing) 69 7.9 Information on digital outputs for direct current (current sourcing) 71 7.10 Information on analogue inputs 71 7.11 Information on analogue outputs 72 7.12 Information on communication interfaces .74 7.13 Information on main processing unit(s) and memory(ies)
24、 of the PLC-system . .74 7.14 Information on remote input/output stations (RIOSs) .75 7.15 Information on peripherals (PADTs, TEs, HMIs) .76 7.16 Information on self-tests and diagnostics .76 8 Electromagnetic compatibility (EMC) requirements .76 8.1 General .76 8.2 Emission requirements .77 8.3 EMC
25、 immunity requirements 78 8.4 Requirements for EMC tests and verications .84 8.5 Requirements for information on EMC .84 9 Electromagnetic compatibility (EMC) type tests and verications 84 9.1 Electromagnetic compatibility-related tests 84 9.2 Test environment 85 9.3 Measurement of radiated interfer
26、ence 85 9.4 Measurement of conducted interference 86 9.5 Electrostatic discharge .86 9.6 Radiofrequency electromagnetic eld Amplitude modulated .87 9.7 Power-frequency magnetic elds 87 9.8 Fast transient bursts .88 9.9 High-energy surges 88 9.10 Conducted radiofrequency interference .89 9.11 Damped
27、oscillatory wave (for zone C only) .90 9.12 Voltage drops and interruptions Power port type tests and verications 90 10 Electromagneticcompatibility(EMC)informationtobeprovidedbythemanufacturer .91 11 Safety requirements .91 11.1 Protection against electrical shock .92 11.1.3.3DV.1 Internal wiring .
28、96 11.2 Protection against the spread of re 100 11.3 Limited power circuits .100 11.4 Clearance and creepage distances requirements .102 11.5 Flame-retardant requirements for non-metallic materials 108 11.5.2DV.1 Insulating material 108 11.5.2DV.2 Insulating barriers 110 11.6 Temperature limits .111
29、 11.7 Enclosures 114 11.8 Field-wiring terminals constructional requirements 115 11.9 Provisions for protective earthing .116 JUNE 5, 2008 UL 61131-2 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 11.10 Wiring .117 11.11 Switching devices
30、119 11.12 Components 119 11.13 Battery requirements .120 11.14 Maximum voltage and minimum voltage 120 11.15 Markings and identication 120 11.16 Requirements for safety type tests and verications 126 11.17 Requirements for safety routine tests and verications 126 11.18 Requirements for information o
31、n safety .127 12 Safety type tests and verications 127 12.1 Safety-related mechanical tests and verications .127 12.2 Safety-related electrical tests 133 12.3 Single-fault condition test General 139 12.102DV.1 Printed Wiring Board Abnormal Operation Test 140 13 Safety routine tests 141 13.1 Dielectr
32、ic withstand test .141 13.2 Dielectric withstand verication test .142 13.3 Protective earthing test .142 14 Safety information to be provided by the manufacturer .142 14.1 Information on evaluation of enclosures for open equipment (power dissipation) . . . .143 14.2 Information on mechanical termina
33、l connection 143 Annex A (informative) Illustration of PLC-system hardware denitions Annex B (informative) Digital input standard operating range equations Annex C (normative) Test tools C.1 Jointed test nger .146 C.2 Test pins 146 Annex D (informative) Zone C EMC immunity levels Annex E (informativ
34、e) Overvoltage example Bibliography Annex DVA (normative) Regulatory requirements based upon the National Electrical Code (NEC) DVA.1 General 153 DVA.2 Field Wiring 153 DVA.3 Separation of Circuits All Circuits .156 DVA.4 Grounding .156 DVA.5 Enclosures Ratings .157 JUNE 5, 2008 UL 61131-2 5UL COPYR
35、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annex DVB (informative) Component Reference Standards Annex DVC (normative) IEC to USA Standard references Annex DVD (normative) Secondary Circuits and Circuits Supplied by Battery DVD.1 Secondary circ
36、uits .162 DVD.2 Secondary circuits test 168 DVD.3 Circuits Supplied by a Battery .170 Annex DVE (normative) Enclosures for use with Industrial Control Equipment DVE.1 Scope .172 DVE.2 Construction .172 DVE.3 Performance .184 Annex DVF (normative) Additional requirements for devices with integrally c
37、onnected cables DVF.1 Power-Supply Cord Tests General .188 DVF.2 Tensile strength and elongation tests .188 DVF.3 Oven conditioning 189 DVF.4 Oil conditioning .189 DVF.5 Ultraviolet light (UV) conditioning .189 DVF.6 Cold bend test .189 DVF.7 Cable Gland Connector Tests 190 DVF.8 Strain Relief Test
38、.191 DVF.9 Tests for Environmental Type Enclosures 191 JUNE 5, 2008 UL 61131-2 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 5, 2008 UL 61131-2 7 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
39、DISTRIBUTION WITHOUT PERMISSION FROM UL Preface (UL) This UL Standard is based on IEC Publication 61131-2: second edition Programmable Controllers Part 2: Equipment Requirements and Tests, as revised by Corrigendum 1, March 2004. IEC publication 61131-2 is copyrighted by the IEC. Efforts have been m
40、ade to synchronize the UL edition number with that of the corresponding IEC standard with which this standard is harmonized. As a result, one or more UL edition numbers have been skipped to match that of the IEC edition number. The text, gures and tables of IEC Publication Programmable Controllers P
41、art 2: Equipment Requirements and Tests, IEC 61131-2, copyright February 2003 as revised March 2004, are used in this Standard with the consent of the IEC and the American National Standards Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. ANSI should be
42、contacted regarding the reproduction of any portion of the IEC material. The IEC Foreword and Introduction are not a part of the requirements of this Standard but are included for information purposes only. Copies of IEC Publication 61131-2 may be purchased from ANSI, 11 West 42 nd Street, New York,
43、 New York, 10036, (212) 642-4900. Note Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose. JUNE 5, 2008 UL 61131-2 8UL COPYRIG
44、HTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NATIONAL DIFFERENCES GENERAL National Differences from the text of International Electrotechnical Commission (IEC) Publication 61131-2, Programmable Controllers Part 2: Equipment Requirements and Tests,
45、copyright February 2003 as revised March 2004 are indicated by notations (differences) and are presented in bold text. There are ve types of National Differences as noted below. The difference type is noted on the rst line of the National Difference in the standard. The standard may not include all
46、types of these National Differences. DR These are National Differences based on the national regulatory requirements. D1 These are National Differences which are based on basic safety principles and requirements, elimination of which would compromise safety for consumers and users of products. D2 Th
47、ese are national differences from IEC requirements based on existing safety practices. These requirements reect national safety practices, where empirical substantiation (for the IEC or national requirement) is not available or the text has not been included in the IEC standard. DC These are Nationa
48、l Differences based on the component standards and will not be deleted until a particular component standard is harmonized with the IEC component standard. DE These are National Differences based on editorial comments or corrections. Each national difference contains a description of what the nation
49、al difference entails. Typically one of the following words is used to explain how the text of the national difference is to be applied to the base IEC text: Addition / Add - An addition entails adding a complete new numbered clause, subclause, table or gure. Addition is not meant to include adding select words to the base IEC text. Modication / Modify - A modication is an altering of the existing base IEC text such as the addition, replacement or deletion of cert
