Operating Manual. Digital Multifunctional Power Meter with LCD Display WPM 735 E WPM 735 P. Contents

Transcription

1 Oprating Manual Powr Mtr WPM 735 E WPM 735 P Contnts 1. Safty Nots Gnral Information Dimnsions Connction Connction diagrams Trminals Installing and conncting th mtr Display and Kys LCD Display Ky functions Displaying Masurd Valus Rading th ral-tim valus Quadrant masurmnt and display Rading th nrgy valus Calculation Mthods Dmand Enrgis Harmonics

2 8. Programming th Mtr Start programming Gnral programming mnus Product-spcific programming mnus Status Inputs Puls Outputs nalog Output Evnt Monitoring SOE Troublshooting Tchnical Data Conformity Safty Nots Warning This dvic may only installd or maintaind by prsonnl who hav th rquird tchnical and spcialist knowldg. Th manufacturr will not hold any rsponsability for damag du to disrgarding this manual. Risk of lctric hazard, fir, or xplosion Bfor working on th dvic or quipmnt, disconnct all conductors of voltag inputs and auxiliary supply from mains powr. Th outputs of all th currnt transformrs must b short-circuitd. Us a suitabl masuring dvic to confirm th absnc of hazardous voltag. Put all covrs and protction dvics in plac bfor nrgizing th quipmnt. lways supply th dvic with th corrct ratd voltag (s th labl on th dvic). Not obsrving ths prcautions may caus srious injuris. Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

3 Oprating Manual Powr Mtr 2. Gnral Information WPM 735 is a multi-functional powr mtr, intgrating data acquisition and control into a whol. It can tak th plac of numrous mtrs, transducrs, and othr componnts. WPM 735 is quippd with an RS485 communication port, so it can b intgratd into any lctric powr monitoring systm. Using th configuration softwar, all masurd valus and vnts can b rad out, and th mtr sttings can b carrid out asily. This softwar can b downloadd from WPM 735 P additionally provids a PROFIBUS communication port with a maximum data transfr rat of 1.5 Mbits/sc which nabls ral-tim monitoring. WPM 735 nabls tru ffctiv masurmnt, abl to carry out accurat masurmnt of highly non-linar loads. Harmonics up to th 31 st harmonic can b rad out. Dozns of masurd valus and minimum/maximum valus can b viwd on th display or rad out via softwar. WPM 735 Basic unit ddon modul Sid viw Rar viw Rar viw Not: Th addon modul and th connction layout ar diffrnt on WPM 735 E and on WPM 735 P as wll on custom mtr vrsions! - 3 -

4 3. Dimnsions ddon modul Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

5 Oprating Manual Powr Mtr 4. Connction Th WPM 735 is connctd by 3 trminal strips which can b pulld out and insrtd, thus facilitating on-sit wiring and maintnanc. Th trminal strip with currnt connctions (on top of th mtr) can b fixd by two scrws in ordr to prvnt unintntional pull-out and thus prvnt dangrous induction voltags whn currnt trminals ar not connctd Connction diagrams 3-phas 4-wir systm 3-phas 3-wir systm, 3 CTs 3-phas 3-wir systm, 2 CTs - 5 -

6 4.2. Trminals ddon modul Basic unit Trminal assignmnt of basic unit No. Trminal Dscription No. Trminal Dscription 1 L/+ auxiliary supply 15 RS485+ RS NC not connctd 16 RS485B RS485 3 N/ auxiliary supply 17 SHLD shild 4 NC not connctd 18 NC not connctd 5 FG protctiv ground 19 NC not connctd 6 NC not connctd 20 1 analog output + 7 NC not connctd 21 G analog output 8 NC not connctd 22 VN nutral 9 I32 currnt L3 23 NC not connctd 10 I31 currnt L3 24 V3 voltag L3 11 I22 currnt L2 25 NC not connctd 12 I21 currnt L2 26 V2 voltag L2 13 I12 currnt L1 27 NC not connctd 14 I11 currnt L1 28 V1 voltag L1 Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

7 Oprating Manual Powr Mtr Trminal assignmnt of addon modul No. Trminal WPM 735 E only No. Trminal WPM 735 P only 29 P2 puls output 29 RB trmination rsistor B 30 P2+ ractiv nrgy 30 P Profibus 31 P1 puls output 31 P+ Profibus + 32 P1+ activ nrgy 32 R trmination rsistor 33 Scom supply +30V status inputs 33 SHLD shild 34 S8 status input 8 34 NC not connctd 35 S7 status input 7 35 NC not connctd 36 S6 status input 6 36 NC not connctd 37 S5 status input 5 37 NC not connctd 38 S8 status input 4 38 NC not connctd 39 S7 status input 3 39 NC not connctd 40 S6 status input 2 40 NC not connctd 41 S5 status input 1 41 NC not connctd 42 NC not connctd 42 NC not connctd Nots on WPM 735 E For th status inputs, xtrnal switch contacts ar rquird. For th analog and puls outputs s th according dscriptions blow Not on WPM 735 P On th last dvic of th PROFIBUS chain, th trminals 29 and 30 as wll as 31 and 32 must b connctd to ach othr Installing and conncting th mtr Mak sur that all th lins ar d-nrgizd and th outputs of th currnt transducrs ar short-circuitd. Insrt th mtr into th panl cutout. Fix th mtr using th two plastic clips. Connct th mtr according th trminal assignmnt (also s th print on th mtr). Insrt th trminal strips into th mtr and fastn th two scrws of th trminal strip with th currnt inputs (uppr trminal strip)

8 5. Display and Kys 5.1. LCD Display Displays for: : THD (Total Harmonic Distortion) B: Harmonics C: Phass* and Quadrants** D: Ral-tim valus E: Units of ral-tim valus F: Communication G: Enrgy valus and programming H: Unit of nrgy J: Kys K: Status inputs (WPM 735 E only) L: Puls outputs (WPM 735 E only) M: Quadrants for nrgy N: SOE functions/programming mnu O: Programming P: Ral-tim masuring quantity Q: Unbalanc indication R: Min./Max. valus and dmand WEIGEL MX THD MIN DMD Unbal B B C C WPM735 V W 1: Logo 2: Product nam * Th phass ar indicatd by, B, C: = L1, B = L2, C = L3 S1 S2 S3 S4 S5 S6 S7 S8 ** non (+) = import, - = xport = capacitiv, = inductiv 5.2. Ky functions Ky in display mod in programming mod whn viwing whn changing submnu up - mov cursor lft submnu down - mov cursor right main mnu down mnu down dcras valu of slctd digit main mnu up mnu up incras valu of slctd digit pag nrgis* chang stting confirm stting lav programming ntr programming mod mod * also DTE, TIME, and INFO with SOE option lav mod programming Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

9 Oprating Manual 6. Displaying Masurd Valus Powr Mtr 6.1. Rading th ral-tim valus Th masurd ral-tim valus can b slctd via th main mnu and submnus. For paging th main mnu, prss on of ths kys (down) (up). For paging in a submnu, prss on of ths kys (back) (forward). Display Main mnu Submnus U I Voltag Currnt Voltags L-L Unbalanc rat of voltags L-L Voltags L-N Unbalanc rat of voltags L-N Phas currnts Unbalanc rat of currnts Nutral currnt P ctiv powr Total activ powr Q Ractiv powr Phas activ powrs Total ractiv powr S pparnt powr Phas ractiv powrs Total apparnt powr PF Powr factor Phas apparnt powrs Total powr factor Phas powr factors F Frquncy - MX DMD Dmand and max. dmand I: vrag currnt dmand and max. dmand I: Dat/tim* of currnt maximum dmand P: vrag activ powr dmand and max. dmand P: Dat/tim* of activ powr maximum dmand Q: vrag ractiv powr dmand and max. dmand Q: Dat/tim* of ractiv powr maximum dmand * Tim of occurrnc: 1. row: yar, month S: vrag apparnt powr dmand and max. dmand 2. row: day, hour 3. row: minut, scond S: Dat/tim* of apparnt powr maximum dmand - 9 -

10 Display Main mnu Submnus THD U Voltag Total Harmonic Distortion (THD) of voltags harmonics HD01... HD31: individual harmonics of voltags THD I MX MIN Currnt harmonics Maximum valus Minimum valus Total Harmonic Distortion (THD) of currnts HD01... HD31: individual harmonics of currnts I: Maximum phas currnts P: Maximum valus of total activ powr Q: Maximum valus of total ractiv powr S: Maximum valus of total apparnt powr THD I: Maximum THD of currnts THD U: Maximum THD of voltags I: Minimum phas currnts P: Minimum valus of total activ powr Q: Minimum valus of total ractiv powr S: Minimum valus of total apparnt powr THD I: Minimum THD of currnts THD U: Minimum THD of voltags Quadrant masurmnt and display Th currnts and powrs ar masurd in 4 quadrants: 6.3. Rading th nrgy valus On nrgy valus can b displayd at a tim in addition to currnt th ral-tim valu display. Whn any ral-tim valu is displayd, prss this ky, onc or svral tims. Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

11 Oprating Manual Th following valus ar displayd on aftr th othr: Powr Mtr Display Unit Display of nrgy valu and othr kwh Importd inductiv activ nrgy kwh kwh kwh kvarh kvarh kvarh kvarh kwh kwh kvarh kvarh Exportd capacitiv activ nrgy Exportd inductiv activ nrgy Importd capacitiv activ nrgy Importd inductiv ractiv nrgy Exportd capacitiv ractiv nrgy Exportd inductiv ractiv nrgy Importd capacitiv ractiv nrgy Importd inductiv and capacitiv activ nrgy Exportd inductiv and capacitiv activ nrgy Ractiv 1 st and 2 nd quadrant nrgy Ractiv 3 rd and 4 th quadrant nrgy DTE - Dat: yar - month - day TIME - Tim: hour - minut - scond INFO - Error mssag: 0 = no rror, 1 = rror Digits 1-4: rsrvd Digit 5: sampling rror Digit 6: configuration rror Digit 7: accuracy rror Digit 8: xtrnal rror

12 7. Calculation Mthods 7.1. Dmand Th dmand valus ar dtrmind as follows: Th accumulatd lctrical paramtr within a dmand tim priod dividd by th dmand tim lngth. Th dmand tim is fixd to 15 minuts. Th following figur illustrats th calculation mthod: m End ds Zitintrvalls wird di Brchnung aktualisirt Th calculation is updatd at th nd of th calculation intrval. Th dmand valu is th avrag valu at th nd of th calculation intrval. calculation intrval dmand tim 15 min calculation intrval dmand tim 15 min Tim (minuts) 7.2. Enrgis WPM 735 bidirctionally masurs th activ and ractiv nrgis in 4 quadrants. Th nrgy valus ar countd up to 99,999,999.9 and thn counting rstarts from zro. Th dcimal plac is not displayd. Th polarity of nrgis (import/xport, inductiv/capacitiv) is idntical to thos of powr, both conforming to th stipulations of IEC standards, s Harmonics WPM 735 provids masurmnt of harmonics up to th 31 st harmonic for voltag and currnt as wll as total harmonic distortion (THD) and K factor of currnt. Th portion of harmonics is givn by th prcntag of fundamntal harmonics and hav on digit aftr th dcimal point. That is to say, whn th valu of th fundamntal and harmonic is 1000, that is 100.0% of th ffctiv valu of th fundamntal harmonic, othrs ar by analogy. Th THD rfrs to th total of highr harmonics xcpt fundamntal harmonics, and it is calculatd according to th following formula: THD = i = n 2 X i i= 2 Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

13 Oprating Manual Th K factor is calculatd as follows: K = i= n ( i X ) i= 1 i : Harmonic ordr i 2 i= n X i= 1 i 2 Powr Mtr X : Prcntag of th ffctiv valu of ach harmonic to that of th fundamntal i harmonic n : Highst harmonic, hr 31 Nots: Each harmonic and th THD can b rad from th display or rad out through communication. K factor can only b rad out through communication. 8. Programming th Mtr 8.1. Start programming Th password must b ntrd for changing th mtr sttings: Prss this ky. PROG CODE ** is shown. Prss this ky to st a valu. ** is shown. (Th undrscor indicats th activ digit.) Prss this ky twic. 1 is shown. (1 is th prst password.) Prss this ky to confirm th ntry. Nots For ky functions s 5.2. Th undrscor _ indicats th activ digit. Whn slcting th digit to th lft by this ky, thn, if ncssary and possibl, an additional digit is automatically addd. If th lading digit is a 0, this digit will b blankd whn slcting th digit to th right by this ky

14 8.2. Gnral programming mnus Mnu Dscription Valu rang Nots CT-PR CT primary valu CT-SE CT scondary valu 5 fixd, cannot b changd PT-PR PT-SE MODE Voltag transformr primary valu Voltag transformr scondary valu Systm typ: 4-wir star or 3-wir dlta DDR RS485 mtr addrss BUD RS485 baud rat 4800, 9600, 19200, CLR-M Clar minimum and maximum valus Highr valus can b st but will not b takn ovr Changing th voltag transformr rang will in gnral not b usful. St PT-PR and PT-SE to th sam valu! 4Y, 3d YES, NO CLR-E Rst nrgy countrs YES, NO CLR-D Clar dmand valus YES, NO CLR-S Clar vnts YES, NO... Whn slcting YES th valus ar rst. ftr confirmation NO is displayd again. In this sction th product-spcific programming mnus ar prsnt, s 8.3. RESET Rst mtr to factory sttings YES, NO Whn slcting YES th valus ar rst. ftr confirmation NO is displayd again. VER Display of firmwar vrsion fixd, cannot b changd CODE Entr password is th prst password. Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

15 Oprating Manual Powr Mtr 8.3. Product-spcific programming mnus Mnu Dscription Valu rang Nots P1-ob Enrgy valu applid to activ nrgy puls output null IMP EXP non importd activ nrgy xportd activ nrgy P2-ob Enrgy valu applid to null non ractiv nrgy puls IMP importd ractiv nrgy output EXP xportd ractiv nrgy P-NUM puls wight Highr valus can b st but will not b takn ovr. n-ob Masurd quantity applid to analog output * n-mu Scaling factor for analog output * null U UB UC UB UBC UC I IB IC P q PF F * chang on th mtr will only b takn ovr aftr powr off/on of auxiliary supply. non voltag L1-N voltag L2-N voltag L3-N voltag L1-L2 voltag L2-L3 voltag L3-L1 currnt L1 currnt L2 currnt L3 total activ powr total ractiv powr powr factor frquncy Th st valu is intrnally multiplicatd by 0.1.g. 10 corrsponds to corrsponds to 1.1 and so on 100 corrsponds to

16 9. Status Inputs WPM 735 E is quippd with 8 status input channls which can b usd,.g., to acquir switch positions. Th mtr provids a 30 V supply for this purpos. Extrnal contacts can b dirctly connctd. Not: Sinc thr is a intrnal supply by th mtr, no xtrnal supply must b connctd. Othrwis, th mtr can b damagd. 10. Puls Outputs WPM 735 E is quippd with two puls outputs for nrgy: P1 output supplis pulss for th total activ nrgy. Thr ar thr possibl sttings: importd or xportd activ nrgy, or not activ P2 output supplis pulss for th total ractiv nrgy. Thr ar thr possibl sttings: importd or xportd ractiv nrgy, or not activ (Programming s 8.3.) Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

17 Oprating Manual Powr Mtr Th outputs hav opn collctor optocouplr, max. 50 V, 50 m Th puls wigth is adjustabl from 1000 to (Programming s 8.3.) It dpnds on currnt transformr CT and voltag transformr PT sttings, i.. with 1 kwh/kvarh x CT x PT th st puls count is supplid. 11. nalog Output WPM 735 E is quippd with on analog output 4-20 m, to which on masurd quantity can b assignd to. (Programming s 8.3.) Th burdan shall not xcd 500 Ohms. By adjusting th scaling factor λ (Programming s 8.3.) th convrsion charactristics for voltag, currnt, activ powr, and ractiv powr can b st (but not for powr factor or frquncy). Th figurs blow illustrat th convrsion charactristics: I I I I I I

18 Th following formulas show th contxt of th masurd quantity and th output currnt I : Quantity Output currnt Voltag ( I 4m) U U = U λ PT I = 16 m + m 16m U λ PT 4 Currnt ( I 4m) I = I λ CT 16m ctiv powr ( I 12m) Ractiv powr ( I 12m) Powr factor ( I 4m) Frquncy ( I 4m) P = P λ CT PT 8m Q = Q λ CT PT 8m I I = 16 m + m I λ CT 4 P I = 8 m+ m P λ CT PT 12 Q I = 8 m + m Q λ CT PT 12 PF = PF I = 16m + 4m 16m 2 F = F 35Hz 30Hz + 35Hz I = 16m + 4m 16m 30Hz whr: I : Output currnt in m U : Ratd voltag of th mtr in V I : Ratd currnt of th mtr in P : ctiv powr fullscal valu of th mtr in W P = 3 U I Q : Ractiv powr fullscal valu of th mtr in Var PF: Powr factor ( ) F: Frquncy λ : Scaling factor in th rang of 1 to 10 (dfault: 1) CT: Currnt transformr ratio PT: Voltag transformr ratio Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

19 Oprating Manual Powr Mtr 12. Evnt Monitoring SOE WPM 735 E provids a function of rcording up to 50 SOE vnts,. Th rcords can b kpt for mor than 10 yars. Th SOE rcording function can rcord th switch contact positions. Whn an vnt occurs, th mtr will automatically rcord th typ of th vnt such as closing of contact 1. t th sam tim, th yar, month, day, hour, minut, scond, milliscond whn th vnt occurs will b rcordd prcisly. Th rsolution is 2 ms. Th SOE rcords can b rad out through communication. Th structur of SOE vnt data is as follows: Byt position Dfinition Dscription 0 Typ of vnt 1 = S1 2 = S = S8 1 Status of vnt 0 = OFF 1 = ON 2 3 Milliscond 4 5 UNIX clock low word 6 7 UNIX clock high word Th basis rfrnc of th UNIX clock is 00:00:00 January 1, 1970 (Grnwich Man Tim). For tim convrsion, plas pay attntion to th tim diffrnc of your tim zon and daylight saving tim. For MST, thr is a 1 hour (2 hours with DST) tim diffrnc compard to standard UNIX tim

20 13. Troublshooting Possibl problm Possibl caus Possibl solution No display aftr powr-up. masurd valus ar fals or not as xpctd. Thr is no chang in th ON-OFF status (WPM 735 E only) No signal on analog output (WPM 735 E only) No or not corrct pulss on puls output (WPM 735 E only) uxiliary supply may not b connctd. Voltag masurmnt is not corrct. Currnt masurmnt is not corrct. Powr masurmnt is not corrct. Powr supply for ON- OFF is not corrct. Th analog output is st to "null" or wrong masurd quantity Th puls output is st to "null" or wrong masurd quantity or wrong puls wight. Chck ratd voltag on L/+ and N/- trminals. Chck fus in auxiliary supply. Chck nutral connction. Chck voltag to match ratd voltag. Chck voltag transformr ratio or PT primary and scondary valus. Chck currnt to match ratd currnt. Chck currnt transformr ratio or CT primary and scondary valus. Chck systm typ stting: 4-wir star or 3-wir dlta Chck phas squnc of voltags and currnts Chck squnc of CT connction Chck xtrnal contacts Chck xtrnal connctions Chck analog output sttings. Chck puls output sttings. Wigl Mßgrät GmbH Postfach Nürnbrg Phon: 0911 / Erlnstraß Nürnbrg Fax: 0911 / Sals: Phon: 0911 / Intrnt: -mail: vrtrib@wigl-mssgrat.d

21 Oprating Manual Powr Mtr No communication with th mtr Mtr addrss is wrong. Baud rat is wrong. Th communication link has not bn corrctly connctd to th trminal rsistor. Th communication link suffrs intrfrnc. Th communication lin is intrruptd. Chck if th addrss of th mtr is st corrctly, or if thr is mor than on mtr with th sam addrss on th bus. Chck baud rat. Chck if th 120 Ohm rsistor has bn connctd only to th last dvic. Chck if th communication-shilding layr has bn arthd ffctivly. Chck if th communication cabl has bn disconnctd. 14. Tchnical Data Dimnsions Elctrical connction Bzl 96 mm Ratd voltag 230/400 V Bzl hight 18 mm Ratd currnt 5 Panl cutout mm Currnt connction via CTs N/5 Wight approx. 0.7 kg uxiliary supply V C or V DC Wir cross sction max. 2.5 mm 2 Working tmpratur C For mor tchnical data s th Data Sht 679.D.121.xx 15. Conformity Th WPM 735 dvic complis with 2006/95/EG (low voltag) dirctiv associatd with EN standard and 2004/108/EG (EMC) dirctiv associatd with EN and EN standards. - Spcifications subjct to chang without notic; dat of issu 07/