ANSI B11 STD B11 TR6-2010 Machines C Safety Control Systems for Machine Tools.pdf

《ANSI B11 STD B11 TR6-2010 Machines C Safety Control Systems for Machine Tools.pdf》由会员分享，可在线阅读，更多相关《ANSI B11 STD B11 TR6-2010 Machines C Safety Control Systems for Machine Tools.pdf（198页珍藏版）》请在麦多课文档分享上搜索。

1、ANSI Technical Report B11.TR6 2010 1 B11.TR6-2010 ANSI Technical Report for Machines Safety Control Systems for Machine Tools Registered: 5 DECEMBER 2010 by the American National Standards Institute, Inc. Secretariat and Accredited Standards Developer, prepared by: B11 Standards, Inc. 42293 Young La

2、ne Leesburg, VA 21076 COPYRIGHT PROTECTED DOCUMENT Copyright 2010 by B11 Standards, Inc. All rights reserved. Printed in the United States of America No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of B11

3、 Standards, Inc. ANSI Technical Report B11.TR6 2010 2 AMERICAN NATIONAL STANDARDS / TECHNICAL REPORTS By registering this ANSI Technical Report, the ANSI Board of Standards Review confirms that the requirements for due process, consensus, balance and openness have been met by AMT The Association For

4、 Manufacturing Technology (the ANSI-accredited standards developing organization). American National Standards and Technical Reports are developed through a consensus process. Consensus is established when substantial agreement has been reached by directly and materially affected interests. Substant

5、ial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward resolution. This process brings together volunteers and/or seeks out the views of persons who have an intere

6、st in the topic covered by this publication. While AMT administers the process and establishes procedures to promote fairness in the development of consensus, it does not write the document and it does not independently test, evaluate or verify the accuracy or completeness of any information or the

7、soundness of any judgments contained in its standards or guidelines. American National Standards and Technical Reports are promulgated through ANSI for voluntary use; their existence does not in any respect preclude anyone, whether they have approved the standards/technical reports or not, from manu

8、facturing, marketing, purchasing, or using products, processes, or procedures not conforming to the these documents. However, users, distributors, regulatory bodies, certification agencies and others concerned may apply American National Standards or Technical Reports as mandatory requirements in co

9、mmerce and industry. The American National Standards Institute does not develop standards or technical reports and will in no circumstances give an interpretation of an American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American Nationa

10、l Standard in the name of the American National Standards Institute. Requests for interpretations should be addressed to the Secretariat (AMT). AMT MAKES NO WARRANTY, EITHER EXPRESSED OR IMPLIED AS TO THE FITNESS OF MERCHANTABILITY OR ACCURACY OF THE INFORMATION CONTAINED WITHIN THIS TECHNICAL REPOR

11、T, AND DISCLAIMS AND MAKES NO WARRANTY THAT THE INFORMATION IN THIS DOCUMENT WILL FULFILL ANY OF YOUR PARTICULAR PURPOSES OR NEEDS. AMT disclaims liability for any personal injury, property or other damages of any nature whatsoever, whether special, indirect, consequential or compensatory, directly

12、or indirectly resulting from the publication, use of, application or reliance on this document. AMT does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this technical report, nor does it take any position with respect to the val

13、idity of any patent rights asserted in connection with the items which are mentioned in or are the subject of this document, and AMT disclaims liability for the infringement of any patent resulting from the use of or reliance on this document. Users of this document are expressly advised that determ

14、ination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility. In publishing or making this document available, AMT is not undertaking to render professional or other services for or on behalf of any person or entity, nor is AMT

15、undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment, or as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. AMT h

16、as no power, nor does it undertake to police or enforce conformance to the requirements of this document. AMT does not certify, test or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of conformance to any health or safety-related infor

17、mation in this document shall not be attributable to AMT and is solely the responsibility of the certifier or maker of the statement. NOTICE: This ANSI Technical Report may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken p

18、eriodically to reaffirm, revise, or withdraw this technical report. You may contact the Secretariat for current status information on this, or other B11 documents. Individuals interested in obtaining up-to-date information on standards can access this information at http:www.nssn.org (or by contacti

19、ng ANSI). NSSN - A National Resource for Global Standards, provides a central point to search for standards information from worldwide sources and can connect those who seek standards to those who supply them. Published by: B11 Standards, Inc. 42293 Young Lane, Leesburg, VA 20176, USA dfelinskib11st

20、andards.org Copyright 2010 by B11 Standards, Inc. All rights reserved. Printed in the United States of America No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. ANSI Technical Report B11.T

21、R6 2010 3 TABLE OF CONTENTS PAGE Introduction and Overview of the ANSI B11 Series 13 1 Scope . 15 2 References . 15 3 Definitions 16 4 General Design Considerations for Mechanical, Fluid Power and Electrical Technologies 21 4.1 ANSI B11.TR6 Circuit Analysis Tables 21 4.2 Practical Use of TR6 22 4.2.

22、1 General 22 4.2.2 Applying TR6 to a Sample Application 22 4.3 Reset Function of the Safety Circuit 24 4.4 Start Function 24 4.5 Testing & Verification of the Safety Function . 24 4.5.1 Category 2 Periodic Test . 24 4.6 Fault Consideration . 24 4.6.1 Fault Analysis 25 4.6.2 Fault Exclusion 25 4.7 Re

23、sponse Time 25 4.8 Mechanical Considerations (general) 25 4.9 Fluid Power (Pneumatics & Hydraulics) 25 4.9.1 General Considerations . 25 4.9.2 Basic Methodology for Safety Interfacing 25 4.9.3 Pressure Vessels and Accumulators 26 4.9.4 Stored Energy (Trapped Pressure) . 26 4.9.5 Reapplication of Pre

24、ssure . 26 4.9.6 Hoses and Fittings . 27 4.9.7 Fluid Power Valve Crossover Considerations . 28 4.9.8 Single Channel Fluid Power Device 28 ANSI Technical Report B11.TR6 2010 4 4.9.9 Single Channel Fluid Power Device with Monitoring. 28 4.9.10 Dual channel fluid power . 29 4.9.11 Dual Channel fluid po

25、wer with Monitoring . 29 4.9.12 Dual Channel Cross Monitoring Valve 29 4.9.13 Response Time Considerations 29 4.9.14 Fault Reset Function . 29 4.9.15 Position Fault . 29 4.9.16 Diminished Performance Fault 29 4.9.17 Failure Modes to be Considered . 29 4.9.18 Non-Safety Devices . 30 4.10 Pneumatics 3

26、0 4.10.1 Basic Pneumatic System Considerations . 30 4.10.2 Safety Shut-Off and Exhaust Valve . 30 4.10.3 Filtration . 31 4.10.4 Regulator . 31 4.10.5 Lubrication . 31 4.10.6 Air Valve Mufflers 32 4.10.7 Environmental Influences 32 4.11 Hydraulics 32 4.11.1 Basic Hydraulic System Considerations . 32

27、4.11.2 General 32 4.11.3 Accumulators . 33 4.11.4 Fluid Management . 33 4.11.5 Filtration . 34 4.11.6 Relief/Pressure Reducing Valve 36 4.12 Electrical Interfacing Considerations (General) 36 4.12.1 Basic Methodology of Safety Interfacing . 36 4.12.2 Protective Stop Circuits . 36 4.12.2.1 Single-Cha

28、nnel Control . 36 4.12.2.2 Dual-Channel Control . 37 4.12.3 Safety Interface Module (SIM) . 37 4.12.4 Interfacing the Protective (Safety) Stop 38 4.12.4.1 Positive Logic . 38 4.12.4.2 PES/PLC Interfacing . 38 4.12.5 Electro-Mechanical Contact Considerations . 39 4.12.6 Failure Modes 39 4.12.7 Power

29、Supplies 39 4.12.8 Environmental Influences 39 4.13 Safety-Related Performance . 40 5 Input Devices (safeguarding devices and complementary equipment) . 42 ANSI Technical Report B11.TR6 2010 5 5.1 Emergency Stop Devices 42 5.1.1 Lowest Risk Reduction (Category 1) . 43 5.1.1.1 Single Channel E-Stop U

30、sing a Control Relay (Category 1) 43 5.1.2 Low / Intermediate Risk Reduction (Category 2) 44 5.1.2.1 Dual Channel E-Stop Using Redundant Control Relays (Category 2) . 44 5.1.3 Intermediate / High Risk Reduction (Category 3) 45 5.1.3.1 Dual Channel E-Stop Using FGR Relays and Cross Monitoring (Catego

31、ry 3) . 45 5.1.3.2 Multiple Dual Channel E-Stop with a Safety Relay Interface Module (Category3) . 46 5.1.4 Highest risk reduction (Category 4) . 47 5.1.4.1 Single Button Dual Channel E-Stop with a SIM (Category 4) 47 5.1.4.2 Single Button Dual Channel E-Stop* w/ Self Monitoring and a SIM (Category

32、4). 48 5.2 Contact Interlocking 49 5.2.1 Description of Positive-Opening Interlock Switches 49 5.2.2 Type 1 and Type 2 Considerations . 50 5.2.2.1 Failure Modes . 50 5.2.2.1.1 Type 1 . 50 5.2.2.1.2 Type 2 . 50 5.2.2.2 Categories 50 5.2.3 General Considerations . 50 5.2.3.1 Physical installation 50 5

33、.2.3.2 Electrical interface 50 5.2.3.2.1 PES/PLC Control System Monitoring . 51 5.2.3.2.2 Monitoring Series Connected Positive-Opening Interlocking Switches . 51 5.2.4 Basic Circuit (Category B) . 52 5.2.4.1 Basic Interlocked Guard Monitoring Circuit (Category B) 52 5.2.5 Lowest Risk Reduction (Cate

34、gory 1) . 53 5.2.5.1 Interlocked Guard Monitoring Circuit Single Channel (Category 1) . 53 5.2.6 Low / Intermediate Risk Reduction (Category 2) 54 5.2.6.1 Series Connection of Interlocks to a SIM (Category 2) 54 5.2.6.2 Interlocked Guard Monitoring Single Channel w/ a SIM and PES (Category 2) 55 5.2

35、.7 Intermediate / High Risk Reduction (Category 3) 56 5.2.7.1 Single Interlock to a SIM (Category 3) 56 5.2.7.2 Series Connection of Interlocks to a SIM (Category 3) 57 5.2.8 Highest Risk Reduction (Category 4) 58 5.2.8.1 Interlocked Guard Monitoring Dual Channel w/ Relay/Contactor and Reset Button

36、(Category 4) . 58 5.2.8.2 Interlocked Guard Monitoring Dual Channel w/ a SIM (Category 4) . 59 5.3 Guard Interlocking with Non-Contact Switches (without a Locking Function) . 60 5.3.1 Description of Non-Contact Interlock Switches . 60 5.3.2 General Considerations . 60 5.3.3 Inductive Switches . 60 5

37、.3.4 Optical Switches 60 5.3.5 Magnetic Switches 60 5.3.6 Transponder Switches . 61 5.3.7 Basic Risk Reduction (Category B) . 61 5.3.7.1 Non-Contact Interlocked Guard Monitoring using Standard Retro-Reflective Photo Sensor (Category B) . 61 5.3.7.2 Non-Contact Interlocked Guard Monitoring using Stan

38、dard Magnetic Sensor (Category B) 62 5.3.8 Intermediate / High Risk Reduction (Category 3) 63 ANSI Technical Report B11.TR6 2010 6 5.3.8.1 Non-Contact Interlocked Guard Monitoring Circuit (Category 3) 63 5.3.8.2 Interlocked Guard Monitoring Dual Channel with a SIM (Category 3) . 64 5.3.9 Highest Ris

39、k Reduction (Category 4) 65 5.3.9.1 Interlocked Guard Monitoring Dual Channel with a SIM (Category 4) . 65 5.3.9.2 Interlocked Guard Monitoring Dual Channel with a SIM (Category 4) . 66 5.3.9.3 Interlocked Guard Monitoring Dual Channel with a SIM (Category 4) . 67 5.3.9.4 Interlocked Guard Monitorin

40、g Dual Channel with a SIM (Category 4) . 68 5.4 Guardlocking Interlocks . 69 5.4.1 General Considerations . 69 5.4.2 Low / Intermediate Risk Reduction (Category 2) 69 5.4.2.1 Power to Release, Inline Guardlocking Interlock (Category 2) . 69 5.4.3 Intermediate / High Risk Reduction (Category 3) 70 5.

41、4.3.1 Power to Release, Dual Axis Guardlocking Interlock (Category 3) 70 5.4.4 Highest Risk Reduction (Category 4) 71 5.4.4.1 Power to Release, Inline Guardlocking Interlock (Category 4) . 71 5.4.4.2 Power to Release, Dual Axis Interlock Connected to a SIM (Category 4) 72 5.4.4.3 Power to Release, D

42、ual Axis Interlock Connected to a SIM (Category 4) 73 5.4.4.4 Power to Release, Dual Axis Interlock Connected to a SIM (Category 4) 74 5.5 Optical Presence Sensing Devices 75 5.5.1 General Considerations . 75 5.5.1.1 Light Curtains . 75 5.5.1.2 Single/Multiple Beam Devices (Point or Grid Devices) 76

43、 5.5.1.3 Scanners 76 5.5.2 Lowest Risk Reduction (Category 1) . 77 5.5.2.1 IEC 61496 Type 2 Presence Sensing Device with Control Relay (Category 1) 77 5.5.3 Low / Intermediate Risk Reduction (Category 2) 78 5.5.3.1 IEC 61496 Type 2 Presence Sensing Device with Force-guided Relay (Category 2) 78 5.5.

44、3.2 IEC 61496 Type 2 Presence Sensing Device with Force-guided Relay (Category 2) 79 5.5.4 Intermediate / High Risk Reduction (Category 3) 80 5.5.4.1 IEC 61496 Type 3 Presence Sensing Device with Safety Interface Module (Category 3) 80 5.5.5 Highest Risk Reduction (Category 4) 81 5.5.5.1 IEC 61496 T

45、ype 4 Presence Sensing Device with OSSD (Category 4) . 81 5.5.5.2 IEC 61496 Type 4 Presence Sensing Device with Safety Interface Module (Category 4) 82 5.6 Mats / Edges 83 5.6.1 General considerations . 83 5.6.2 Low / Intermediate Risk Reduction (Category 2) 83 5.6.2.1 Single Safety Mat Using a Safe

46、ty Interface Module (Category 2) 83 5.6.3 Intermediate / High Risk Reduction (Category 3) 84 5.6.3.1 Multiple Safety Mats Using a Safety Interface Module (Category 3) 84 5.7 Two-Hand Control . 85 5.7.1 General Considerations . 85 5.7.1.1 Minimum functional requirements for a Two-hand Control as requ

47、ired by NFPA 79 and IEC 60204-1 (Type III): . 85 5.7.1.2 Physical Installation and Electrical Interface Considerations: 85 5.7.1.3 Two-Hand Control Safety Interface Modules . 86 5.7.2 Lowest Risk Reduction Two Hand Control (Type IIIa Category 1) . 86 5.7.2.1 Two Hand Control (Type IIIa Category 1) 8

48、6 5.7.2.2 Low / Intermediate Risk Reduction Two-Hand Control (Type IIIa Category 1) . 87 5.7.3 Intermediate / High Risk Reduction Two-Hand Control (Type IIIb Category 3) 88 ANSI Technical Report B11.TR6 2010 7 5.7.3.1 Two Hand Control (Type IIIb Category 3) 88 5.7.4 Intermediate / High Risk Reductio

49、n Two-Hand Control (Type IIIb Category 3) 89 5.7.4.1 Two-Hand Control (Type IIIb Category 3) . 89 5.7.5 Highest Risk Reduction Two-Hand Control (Type IIIc Category 4) . 90 5.8 Zero (Stand Still) Speed Detection . 91 5.8.1 General Considerations . 91 5.8.2 Lowest Risk Reduction (Category 1) . 92 5.8.2.1 Single Proximity Sensing (Category 1) 92 5.8.3 Intermediate / High Ri