1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Programmable Controllers Part 2: Equipment Requirements and Tests UL 61131-2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGH
2、TED 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 issued to reect the r
3、ecent 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 publication may be
4、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 not limited to, the
5、 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 inability to use this Sta
6、ndard, 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 Standards for Safety agre
7、e 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 computer system. The requi
8、rements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the preface. The prior text for requirements that have been revised and that have a future effective date are located
9、after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. NOVEMBER 29, 2012 UL 61131-2 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 29, 2012 UL 61131-2 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHOR
10、IZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 5, 2008 (Title Page Reprinted: November 29, 2012) 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
11、Safety consists of the Second Edition including revisions through November 29, 2012. The most recent designation of ANSI/UL 61131-2 as a Reaffirmed American National Standard (ANS) occurred on November 29, 2012. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title P
12、age, Preface, or effective date information. The National Difference Page and IEC Foreword are also excluded 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
13、 Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety 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 Stand
14、ards shall remain the sole and exclusive property of UL. COPYRIGHT 2012 UNDERWRITERS LABORATORIES INC. ANSI/UL 61131-2-2008 (R2012)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 M
15、ATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface (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 Equipm
16、ent to be tested (equipment under test/EUT) .18 2.2 Special features for immunity and EMC tests .19 2.3 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 Genera
17、l conditions for tests .22 3 Terms and denitions 22 4 Normal service conditions and requirements 28 4.1 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 requir
18、ements 33 4.5 Special conditions and requirements .34 5 Functional requirements 34 5.1 Functional power 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 requi
19、rements .48 5.6 Remote input/output stations (RIOSs) requirements .48 5.7 Peripherals (PADTs, TEs, HMIs) 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 nor
20、mal service and functional type tests and verications .51 5.13 Requirements for information on normal service 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 port
21、s and memory back-up Special immunity limits for power ports .55 6.4 Verication of input/output requirements 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 N
22、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.8 Verication of peripheral (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 prov
23、ided by the manufacturer 66 7.1 Information on type and content of documentation .66 7.2 Information on 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
24、 68 7.7 Information on digital inputs (current sinking) .69 7.8 Information on digital outputs for alternating 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
25、.12 Information on communication interfaces 74 7.13 Information on main processing unit(s) and memory(ies) 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 Elect
26、romagnetic compatibility (EMC) requirements .76 8.1 General 76 8.2 Emission requirements .77 8.3 EMC 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 Electr
27、omagnetic compatibility-related tests 84 9.2 Test environment 85 9.3 Measurement of radiated interference 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 trans
28、ient bursts .88 9.9 High-energy surges 88 9.10 Conducted radiofrequency interference .89 9.11 Damped oscillatory wave (for zone C only) 90 9.12 Voltage drops and interruptions Power port type tests and verications .90 10 Electromagnetic compatibility (EMC) information to be provided by the manufactu
29、rer .91 11 Safety requirements .91 11.1 Protection against electrical shock 92 11.1.3.3DV.1 Internal wiring 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 mater
30、ials .108 11.5.2DV.1 Insulating material .108 11.5.2DV.2 Insulating barriers .110 11.6 Temperature limits 111 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
31、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 11.10 Wiring 117 11.11 Switching devices 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 verica
32、tions 126 11.17 Requirements for safety routine tests and verications 126 11.18 Requirements for information on 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 Ge
33、neral .139 12.102DV.1 Printed Wiring Board Abnormal Operation Test .140 13 Safety routine tests 141 13.1 Dielectric 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 eva
34、luation of enclosures for open equipment (power dissipation) . . . .143 14.2 Information on mechanical terminal 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.
35、1 Jointed test nger .146 C.2 Test pins 146 Annex D (informative) Zone C EMC immunity levels Annex E (informative) 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
36、 Circuits All Circuits 156 DVA.4 Grounding 156 DVA.5 Enclosures Ratings 157 JUNE 5, 2008 UL 61131-2 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annex DVB (informative) Component Reference Standards Annex DVC (normative) IEC to USA Stand
37、ard references Annex DVD (normative) Secondary Circuits and Circuits Supplied by Battery DVD.1 Secondary circuits .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 Constru
38、ction 172 DVE.3 Performance 184 Annex DVF (normative) Additional requirements for devices with integrally connected 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) c
39、onditioning 189 DVF.6 Cold bend test 189 DVF.7 Cable Gland Connector Tests .190 DVF.8 Strain Relief Test 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, 2
40、008 UL 61131-2 7 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR 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 revi
41、sed by Corrigendum 1, March 2004. IEC publication 61131-2 is copyrighted by the IEC. Efforts have been made 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
42、that of the IEC edition number. The text, gures and tables of IEC Publication Programmable Controllers Part 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 Insti
43、tute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. ANSI should be 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 purp
44、oses only. Copies of IEC Publication 61131-2 may be purchased from ANSI, 11 West 42 nd Street, New York, 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
45、 the Standard to judge its suitability for their particular purpose. JUNE 5, 2008 UL 61131-2 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NATIONAL DIFFERENCES GENERAL National Differences from the text of International Electrotechnical C
46、ommission (IEC) Publication 61131-2, Programmable Controllers Part 2: Equipment Requirements and Tests, 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 typ
47、e is noted on the rst line of the National Difference in the standard. The standard may not include all 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 a
48、nd requirements, elimination of which would compromise safety for consumers and users of products. D2 These 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 r
49、equirement) is not available or the text has not been included in the IEC standard. DC These are National 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 national difference entails. Typically one of the following words is
