1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationControllers with analogue signals for use in industrial-process control systemsPart 2: Guidance for inspection and routine testingBS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/E
2、XCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 60546-2:2010. It isidentical to IEC 60546-2:2010. It supersedes BS EN 60546-2:1993, which willbe withdrawn on 1 September 2013.The UK participation in its prepar
3、ation was entrusted by Technical CommitteeGEL/65, Measurement and control, to Subcommittee GEL/65/2, Elements ofsystems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontr
4、act. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 62204 5 ICS 25.040.40Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February
5、2011.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 60546-2 NORME EUROPENNE EUROPISCHE NORM September 2010 CENELEC European Committ
6、ee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC member
7、s. Ref. No. EN 60546-2:2010 E ICS 25.040.40 Supersedes EN 60546-2:1993English version Controllers with analogue signals for use in industrial-process control systems - Part 2: Guidance for inspection and routine testing (IEC 60546-2:2010) Rgulateurs signaux analogiques utiliss pour les systmes de co
8、nduite des processus industriels - Partie 2: Recommandations pour les essais dinspection et les essais individuels de srie (CEI 60546-2:2010) Regler mit analogen Signalen fr die Anwendung in Systemen der industriellen Prozesstechnik - Teil 2: Anleitung fr die Abnahme- und Betriebsuntersuchung (IEC 6
9、0546-2:2010) This European Standard was approved by CENELEC on 2010-09-01. CENELEC 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 bib
10、liographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibil
11、ity of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germ
12、any, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, U
13、ncontrolled Copy, (c) BSIEN 60546-2:2010 - 2 - Foreword The text of document 65B/660/CDV, future edition 2 of IEC 60546-2, prepared by SC 65B, Devices & process analysis, of IEC TC 65, Industrial-process measurement, control and automation, was submitted to the IEC-CENELEC parallel vote and was appr
14、oved by CENELEC as EN 60546-2 on 2010-09-01. This European Standard supersedes EN 60549-2:1993. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent r
15、ights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2013-09-01 Ann
16、ex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60546-2:2010 was approved by CENELEC as a European Standard without any modification. _ BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) B
17、SI- 3 - EN 60546-2:2010 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated
18、references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60546-1 2010 Controllers with analogue
19、 signals for use in industrial-process control systems - Part 1: Methods of evaluating the performanceEN 60546-1 201X1)1)At draft stage. BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI 4 60546-2 IEC:2010 CONTENTS 1 Scope.5 2 Norma
20、tive references .5 3 Terms, definitions and symbols 5 3.1 Symbols used in this standard .5 4 Sampling for test 6 5 Performance tests 6 5.1 General .6 5.2 Tests of controller action (only functions provided by test specimen need consideration) .6 5.2.1 Offset (full test: see Clause 6 of IEC 60546-1)
21、.6 5.2.2 Proportional action (full test: see 7.2 of IEC 60546-1) 6 5.2.3 Integral action (full test: see 7.3 of IEC 60546-1) .8 5.2.4 Derivative action (for a more accurate test: see 7.4 of IEC 60546-1) .9 5.3 Power supply variations (full test: see 8.5.1 of IEC 60546-1) . 10 5.4 Transfer between ma
22、nual and automatic .11 5.5 Set point generator11 5.6 Manual loading transmitter 11 Bibliography12 Figure 1 Basic signals to/from an idealized controller.6 Figure 2 Arrangement for open loop or closed loop tests7 Figure 3 Recorded characteristics of proportional action 8 Figure 4 Recorded characteris
23、tics of integral action .9 Figure 5 Recorded characteristics of derivative action .10 BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI60546-2 IEC:2010 5 CONTROLLERS WITH ANALOGUE SIGNALS FOR USE IN INDUSTRIAL-PROCESS CONTROL SYSTEM
24、S Part 2: Guidance for inspection and routine testing 1 Scope This International Standard applies to pneumatic and electrical industrial-process controllers using analogue signals which are in accordance with IEC 60381-1 and IEC 60381-2. The provisions of this standard are applicable in principle to
25、 controllers having different, but continuous signals. This standard is intended to provide technical guidance for inspection and routine testing of controllers, for instance, as acceptance tests or after repair. For a full evaluation, IEC 60546-1 should be used. Quantitative criteria for acceptable
26、 performance are established by agreement between manufacturer and user. The requirements of this standard are effective when agreed upon by the manufacturer and the user. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refe
27、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60546-1:_, Controllers with analogue signals for use in industrial-process control systems Part 1: Methods of evaluating the performance1 3 Terms, def
28、initions and symbols For the purposes of this document, the terms and definitions given in IEC 60546-1 apply. 3.1 Symbols used in this standard t time y output signal (see Figure 1) y0 output signal at time t = 0 x measured value (see Figure 1) w set point value (see Figure 1) Xp proportional band T
29、I reset time TD rate time KP proportional action factor KI integral action factor KD derivative action factor 1To be published. BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI 6 60546-2 IEC:2010 Controller wx wy xPID IEC 1620/10 F
30、igure 1 Basic signals to/from an idealized controller 4 Sampling for test If, by agreement between manufacturer and user, tests are to be performed on a sample lot, it is recommended that a sampling method such as presented in IEC 60410 be selected. When sampling is used, controllers to be tested ma
31、y be chosen by the users inspector. 5 Performance tests 5.1 General Environmental conditions at the location of testing shall be recorded. Recommended conditions can be found in 5.1.1 of IEC 60546-1. The following tests shall be performed. 5.2 Tests of controller action (only functions provided by t
32、est specimen need consideration) 5.2.1 Offset (full test: see Clause 6 of IEC 60546-1) This test applies only to controllers with integral action. a) Initial conditions Closed loop according to Figure 2, switch position B. Reverse action. Xp= 100 %, proportional band TI= minimum reset time TD= witch
33、ed off, if possible, or at minimum rate time b) Test procedure Measure and record the offset, on the differential measuring device, for set point w = 50 %. Note x and w indications, and check corresponding scale indications, if existing. Repeat the measurement with w = 10 % and then w = 90 %. 5.2.2
34、Proportional action (full test: see 7.2 of IEC 60546-1) The open loop circuit arrangement in Figure 2 is used with the switch in position A. a) Initial conditions Open loop according to Figure 2, switch position A. Xp= 100 %, proportional band Stabilize output y at 50 %. BS EN 60546-2:2010Licensed C
35、opy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI60546-2 IEC:2010 7 TI= switched off, if possible, or at maximum reset time after stabilization TD= switched off, if possible, or at minimum rate time X = w = 50 % b) Test procedure Introduce a step change of 20
36、% of input signal from generator No. 2. Record corresponding change (y %) of output y. 100spanOutput/ spanvalueMeasured100%p = yxyxX NOTE 1 If integral action cannot be made negligible, y should be determined in accordance with Figure 3. Set point generator No. 1 Measured value generator No. 2 Bias
37、generator No. 3 Offset measurement Controller under test Measured value/ output recorder Set point Measured value Output Load Damping Switch A B 1A = open loop B = closed loop IEC 1621/10 Generator No. 1 D.C. or pressure for steady-state input Generator No. 2 Step for proportional and integral actio
38、n tests Generator No. 3 D.C. or pressure for fixed bias levels for test in closed loop Figure 2 Arrangement for open loop or closed loop tests b) Test procedure Introduce a step change of 20 % of input signal from generator No. 2. Record corresponding change (y %) of output y. 100spanOutput/ spanval
39、ueMeasured100%p = yxyxX NOTE 2 If integral action cannot be made negligible, y should be determined in accordance with Figure 3. BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI 8 60546-2 IEC:2010 Measuredvalue(x) Outputsignal(y) x
40、y Time (t) Time (t) Xp= 100 x % y %tOIEC 1622/10 Figure 3 Recorded characteristics of proportional action 5.2.3 Integral action (full test: see 7.3 of IEC 60546-1) The open loop circuit arrangement in Figure 2 is used with the switch in position A. a) Initial conditions Open loop according to Figure
41、 2, switch position A. Xp = 100 %, proportional band TD= switched off, if possible, or at minimum rate time TI= 1 min or at nearest marking of its scale X = w = 50 % b) Test procedure Stabilize output y at 50 % then introduce 20 % step of input signal, by generator No. 2. Record the corresponding ou
42、tput change, y. Determine reset time TIas shown in Figure 4. BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI60546-2 IEC:2010 9 Measuredvalue(x) Outputsignal(y) tOy0Time (t) Time (t) TITID3/ D2D2(asymptote) IEC 1623/10 TI= time int
43、erval between D2and D3Figure 4 Recorded characteristics of integral action 5.2.4 Derivative action (for a more accurate test: see 7.4 of IEC 60546-1) Applicable to controllers with derivative action on x w and not on those with derivative action on x only. a) Initial conditions Open loop according t
44、o Figure 2, switch position B. Xp = 100 %, proportional band Stabilize output y at 50 %. TI= switched off, if possible, or at maximum reset time after stabilization TD= 1 min w = 50 % b) Test procedure Introduce step change of 10 % to 20 % of set point span from generator No. 1. Record corresponding
45、 change of output signal y. Determine rate time TDas shown in Figure 5. BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI 10 60546-2 IEC:2010 Set point (w) Outputsignal(y) wKDTime (t) Time (t) tOKpKp+ 1 wKDKpT D = IEC 1624/10 Figure
46、 5 Recorded characteristics of derivative action 5.3 Power supply variations (full test: see 8.5.1 of IEC 60546-1) Routine testing of power supply variations can be made under the following. a) Initial conditions See 5.1.1 of IEC 60546-1 and with controller connected to maximum rated load. b) Test p
47、rocedure Measure the effect on offset of the following variations in power supply or the manufacturers stated limits, if smaller. Voltage variation: 1015+ % of nominal a.c. or d.c. voltage. Air pressure variation: 10 % of nominal pressure. BS EN 60546-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHIN
48、A STANDARDS, 08/06/2011 08:33, Uncontrolled Copy, (c) BSI60546-2 IEC:2010 11 5.4 Transfer between manual and automatic The method of assessment of the performance of the automatic/manual transfer facility shall be agreed between manufacturer and user. 5.5 Set point generator NOTE For controllers wit
49、h no accessible set point connections, suitable test procedures should be agreed between manufacturer and user. Test procedure Determine that w is able to reach at least 0 % and 100 % and compare its value with scale indication if possible. 5.6 Manual loading transmitter Test manual loading transmitter to determine that y is able to reach at least 0 % and 100 %. Check th
