User and Installation Manual
Contents
1. Nn O NO JO O nm A A Nn Uo WN MES RECON CAE AE IE MN OE AE E 2 DO o QOO QO di O dvi QOO OC Vv o m le o Q OQ QG Q Oo Q OQ a al a T e El e e E E S L lt lt lt LL LL lt LL ox lt In I M Q Q U LlO H A m IN OR 01D eielieikelalael ielmu uiu du uu TOME O0 O0 OO 5 oO O O O OO OO OO OO A 2 X X X X X X X X X X X X x x x x x D O0 O0 OO 55 oO Oo OO SO OO OO OO OO O lt o ANAI OINI OI OI AHINI MI FIO OLR SINANI OI A NIN TF IN OR ID DO AINIMI IN IOIR OINI OJ AIN Ms TINON CO LH M M NN IN NN NN NINI NI MIMIM IMI CO C OO 0 CO MIM SISSI IS ISS ISO ON LO IO LO LY LO LO LO ODINININI NI NINI NI NINI NINI NINININI NI NINININI NI NI NI NI NINI NINI NI NI NINI NINININI NINININI NI CN NIN Units SNV Engineering Ltd o N SNV SNVO22EC A USER 8 INSTALLATION MANUAL ENGINEERING V1 0 Type Description Channel 59 Ox 103 6 Ox 104 float Volt system voltage averaged value 261 Ox 105 262 1 float Volt system voltage holded value Ox 107 Type Units Description a f Ox 00 bit Dry contact input 1 contact 0 no contact Description Type Commands hold 0x01 or mark 0x02 or Hi byte P a change address 0x0A Ox 00 4 1 iaia if command is change address then set new target address VES if command is change address y then s2. SNV ENGINEERING SNVO22EC X Combiner Box Card User and Installation Manual SNV Engineering LTD 24BPapadiamantopoulouStreet e 1 floor llissia e Athens e Greece e 11528 Phone 30 2107779260 e Fax 30 2107703223 Site www snveng gr Document Follow up Verified by Vaidakis Michael 08 10 2012 ui o Versions Indices Modification 08 10 2012 Initial Draft Version 15 05 2013 Initial release version This document and the information it contains are the sole property of SNV They shall not be disclosed nor reproduced without the prior written approval of SNV as originator SNV Engineering Ltd Table of Contents Document EO OW U iia T A O o dd no ead ere d E tee ii TIHLE ON Contesta a SS O a 1 OVerVieW Galilea 1 A HI aa a aa aka 2 Speciali ao 3 Electrical Characteristics eaaa aana a aana a anae 3 Physical amp Environmental Characteristics 3 Measurement Specifications a eaaa anaa a aane a nane eaaa 4 Communications and bus Specifications 4 LAU aa aaa a a MM EC e 5 Ordering informato earlier 8 SaletvIAstructionis lele 9 Safety SyMbolS ica hill 10 RSA CONS EE RR OR ER IT 11 ec EUER 11 Communication bus and power supply provision 12 Inspection and handine ascella 12 Preparation arent a a 12 Card
3. a o umm Pee mann a JE SNVO22EC Collector Bar 1 SN V SNVO22M 005 NOTES Material AL6063 sheet thikness 10mm General Tolerances 1502768 mk HZ LI LJ 1 2 3 4 5 3 7 8 NOTES 1 Dimensions in parenthesis is for indication only F SNVO22EC A 520 O PROTECTOR PLATE PROTECTOR PLATE 1000 EN 4 4 4 3 nce Designed by Approved by date Date Scale M Valdakis 15 10 2012 11 IF Holes guide for SNVO22EC A and other equipments SNV SNVO20ECM 006 L 1I I I IL T 7 d Front view Scale 1 5 O SNV Engineering Ltd 32 SNV SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 295 17xPEM PFLB M5 1 15x19mm T UJ Ww yu ww dg u Www ul ul Ww ul uy En 05 5 Front view Sea les 182 Section view E E Section view F F Scale 1 2 Scale 1 2 ne _ A V iie temref Artie No Reference Material PA66 or PAG sheet thikness 18mm Designed by ADDIO on Date Scale General Tolerances 1502768 nk M Valdakis pac ea 09 01 2013 SNVO22EC B Holder Bar 1 Assembly Edition Sheet SNVO22M 020 16xPEM PFLB M5 1 Section view G G m MS Scale 1 2 Scale 1 2 IA 6 amp 9 6 6 9 6 Top view Scale 152 AAA a herref Artie No Reference Material PA66 or PAG sheet thikness 18mm Desioned A pitone by cante Date Gale General Tolerances 1502768 n
4. when bus repeaters are not used The same cable can be used for the power supply of the cards using an extra pair The power supply source should be 24Vdc and the current capacity should not exceed 5A The card has power supply inverse polarity protection Inspection and handling A Preparation Visually inspect the Card before installing it for any defect or damage Immediately notify the carrier if any damage is apparent CAUTION Proper ESD handling procedures must always be used when packing unpacking or installing the card Failure to do so may cause damage to the unit Card mounting and support Current measurement channel and common terminals are connected with M5 bolts through 05 5 holes on the card There are also two additional holes at the plug connector side only for mounting The card is mounted on mounting bars see ordering information and drawings in ANNEX A If other material is applied than those supplied by SNV the following specifications should at least comply SNV Engineering Ltd ONV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V1 e ensure following gap defined as the distance between relevant plate or other element and the card routes or components pins or the highest component mounted on the card including any other conducting element like bolts nuts bar cables and cable terminals fixed on the card 10mm gap from grounded plates 20mm gap f
5. NUA 22 MA SNVO TION USER 8 INSTALLA NV ENGINEERING o 1 V Annex B Recommended board integration Single line diagram MUUDUUUQQ UU UU D DUUUQQU VUL SNV Engineering Ltd 36 SNV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V 1 3D views OPP eee Eee eee ee d SNV Engineering Ltd 37 SNV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V 1 Photos SNVO22EC board data and 24vdc PS transparent terminals protective cover 3 terminals are equivalent use installed plastic cable tray unplug to fix cable to the ANANA A o0000000000000900 Ome oocobooecooboDEE output switch DC output MCA earth string connection string connection connectors terminals connectors O SNV Engineering Ltd 38 SNV SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 SNV Engineering Ltd 39
6. SNV Engineering Ltd ONV SNVO22EC A USER 8 INSTALLATION MANUAL 0 ENGINEERING V1 Layout The card is separated in two main areas see figure 3 Low Voltage Area 24V Isolation Area High Voltage Area 1000V The one bottom side is dedicated to the measurement of the current passing through the card and the positive and negative collector bars and to accommodation of the fuses for each string This area is a high voltage area where voltage is up to 1000Vdc exist CAUTION To the card will be connected high voltage signals up to 1000Vdc The operation and installation of the card is considered to be done from qualified personnel The high voltage area is marked on PCB with a dash line All area inside dash line is in high voltage up to 1000V dc The other area upper right is the low voltage area The Modbus interface and card power supply are connected to this area The low voltage area is protected through a F1 1A fuse P N SF 1206F100 2 The low voltage and high voltage areas are separated by an isolation area O SNV Engineering Ltd N SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 ea nn ee El Tela Tol ato a ENGINEERING SN 0000 side O O O O O O O O O O O O o D o F o o oa Strings cable terminals negative String cable terminals A A A AAA AAA CI IO An String Col
7. anyadjustment replacement maintenance or repair The following symbols appear in various places on the card to call your attention to hazardsor to indicate that you should consult the manuals for further information Safety Symbols E Double insulation or reinforced insulation AN CAUTION RISK OF ELECTRIC SHOCK CAUTION RISK OF DANGER Note When an equipment is marked with this symbol A the documentation must always be consulted in order to find out the nature of the potential HAZARD and any actions which have to be taken SNV Engineering Ltd 10 SNV ENGINEERING Installation Overview SNVO22EC USER amp INSTALLATION MANUA V1 or The below installation procedure is proposed by SNV Engineering in order to ensure the good and safe operation of the card In case that the described procedure is not followed SNV Engineering is not responsible from any caused damages or injury Card has DC current measurement channels with current output terminal common CAUTION To the card will be connected to high voltage signals up to 1000Vdc The installation is considered to be done from qualified personnel The card should be installed in such a way that there is no access to it by hand neither from the cables part nor from any other place CAUTION The card must be installed following the below restrictions 10mm gap from grounded plates 20mm gap from non grounded plates Note The g
8. A A A CN CN N N N 019Z SUIN 91 pesn zou Description Units Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes 2 qe qe qe qe qe qe qe O O O O O O O ra ran ram ram rani rani ran rani rani rani ram rani rani rani ram g ram rani Ta A Sur m cud e em E Es eoe SEE EX ja O O x x OIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOoIololIolo O O OjJO JO JO O FS 00 Im L mn O AIN M T IO O RH 0O0 DO AINIMI LSO O DM lt Q O AHINIMIS LuUO oO 00 00 OV OV OD O O OO O OO OO OO Old A A A A A AIi NININININININ dd A AT AT AT dd dd dd A A A A A A A A a Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat float ns float 00 MIO O LL x 05 x 059 x O5A x 05 x 05 x 05 x OSE x 05 O o O x lt Ox 056 x 06 x 062 x 063 x 06 x 06 x 06 x 06 x 06 x 06 x 06 x 06 x 06 x 06 x 06 x 06 x 07 x 07 x 07 x 07 x 07 x 07 x 07 x 07 x 07 x 07 x 07 x 07 x 07 O O jO jO O Address SNV Engineering Ltd N SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 16bitinputregisters use Modbus function 4 TD D DO o il ap gt TD D gt oO un G D i i O NN e o o sal 3 oat mperes 157 sel 3 oat mperes 163 Ox OA3 165 Ox 0A5 167 Ox OA7 169 Ox 0A9 170 float SNV Engineering Ltd 24 EC A
9. NUAL 22 MA SNVO TION USER amp INSTALLA NV ENGINEERING 0 V Channel mM O A N 0197 SUIN 91 pesn zou SAN EA papjoy JUDIINI Description Units Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes O O O O O O O O O O O O O O O O O O O Qe Qe Qe Qe Qe Qe q q q Qe q Y Qe Y Qe Y Qe Y Qe q Qe WL OlAINIM In lIOIR on LL MIO Qu mic uno Ron Li a O OQswit O aI N M TI WwW wo lt dla momo mm ae mm O O JO O O loOl loOjJo jO oO loO O x x x x x x x x x x x x OIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOoOIoOolIolIololololololo TIN OINI WI D OlLAINI IMITI ANAI OIN OIADI OI AIN MIS INn OIR OIADI Olai NA IMI IN OIN AIDI OJ AIN MIS Mm PREP IR IR IR OO CO OO O0 CO CO CO OO O O O OY OY A A nn MIO O0 O0 O0 O0 OO O0 OO A td dd dd AAA AJ AAA NN IN IN IN IN ININININ IN IN CN CNL CN Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Oat Type float Ox OAD x OA x OB x OB x OB x OB x OB x OB x OC x OC x OC x OC x OC x OC x OC x OC x OC x OC x OC x OC x OC x OC x OC x OD x OD x OD x OD x OD x OD Ox OD 173 Address SNV Engineering Ltd Lf CN EC A NUAL V1 0 22 MA SNVO TION USER amp INSTALLA NV ENGINEERING temperature system voltage Description
10. ap is defined as the distance between relevant plate or other element and the card routes or components pins or the highest component mounted on the card including any other conducting element like bolts nuts bar cables and cable terminals fixed on the card Connector CON7 is a dry contact input having two states depending the contact of the connector s two pins or not CAUTION No voltage should be applied to any of the two pins of CON7 O SNV Engineering Ltd 11 SNV ENGINEERING SNVO22EC USER amp INSTALLATION MANUA V1 or Communication bus and power supply provision Card uses RS485 bus for data communication Cards are connected to the bus in series using twisted pair cable There are three equivalent connectors CON1 CON2 CON3 CON4 and CON5 CON6 to facilitate connection of multiple cards in series It is suggested to connect all cards in series in a line preferable with the master controller in the middle If not convenient a star topology with the master controller in the center may work depending of the cable length the number of the lines and their relative lengths In any case all the terminal nodes must be terminated with the appropriate resistor Bias resistors also must be installed RS485 transceiver used supports up to 128 nodes hence up to 127 boards can be connected to the same bus The total length of the cable used for the boards interconnection is suggested not to exceed 1200m
11. ation SNVO22EC USER amp INSTALLATION MANUA V1 or The cables should be connected to the current channels using ring terminals and lock washers above the ring terminal Connectors plug preparation The connector plugs to be used are those listed in table 2 or equivalent For the preparation of the cables connected to the plugs the IPC 620 have to be followed by the installer Plugs should be connected with cables while unplugged During the installation of the card any power source is prohibited The proposed installation steps for the SNVO22EC A are the following and illustrated in the figures 5 to 8 1 Mount the assembled card to the back plate using four screws self taped or normal in the appropriate position depending to main switch figure 5 Connect collector bars to main switch using the appropriate bolts Fixing the cable terminal rings with bolts M5 on mounting bar with torque of 3 4 Nm figure 6 Install fuses 10x38 gPV type up to 16A using the appropriate tool Ensure that the main switch is off figure 7 Plug connectors CON1 CON2 CON3 CON4 CON5 CON6 and CON7 on the card as required figure 8 SNV Engineering Ltd 15 SNV SNVO22EC USER amp INSTALLATION MANUA ENGINEERING V 1 or Figure 3 Mount the card Figure 4 Install cables SNV Engineering Ltd 16 SNV SNVO22EC USER amp INSTALLATION MANUA ENGINEERING V 1 or Figure 5 Install the fu
12. ch Communication and Monitoring For communication MODBUS protocol over an RS485 serial line is implemented RTU mode 29600bps See further MODBUS Application Protocol Specification v1 1b and MODBUS over Serial Line Specification and Implementation Guide v1 02 Data can be read through 16bit input registers Commands are sending by writing Holding registers Three commands are implemented hold mark and change address Hold command transfer instant current values to current holded values Command can be send with a broadcast write acquiring a snapshot of all the currents from all the cards in the bus Mark command initiates averaging and at the same time terminates previous averaging and transfers the result to the relevant registers It is suggested to broadcast periodically the mark command with the desired period as for example 10 mins and during each period read and store the averaged data SNV Engineering Ltd 20 N SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 Modbus Memory Map The memory map of the card is describing in the following table v lol 4 e nits escription anne ae CHR mem Amperes 2 c D Wl Wl 2 2 c 2 Un E MC FEE IN ER tes Ox 016 float SNV Engineering Ltd 21 EC A NUAL 0 22 MA SNVO TION NV USER amp INSTALLA ENGINEERING V Channel A N m O OJ9Z SUJn19J
13. d neither from the cables part nor from any other place CAUTION The card must be installed following the below restrictions 8mmgap from grounded plates 15mm gap from non grounded plates Note The gap is defined as the distance between relevant plate or other element and the card routes or components pins or the highest component mounted on the card including any other conducting element like bolts nuts bar cables and cable terminals fixed on the card SNV does not assume liability for the customer s failure to comply with established procedures Read this chapter before you perform any operations or installation of the card If the equipment used in a manner not specified by the instructions of user manual the protection provided by the card may be impaired SNV s equipment is designed to and reviewed against to CE Safety and EMC standards These standards incorporate applicable electrical codes and safety regulations This manual contains information and warnings which users must follow for safe operation and to keep the apparatus in safe condition SNV Engineering Ltd SNV SNVO22EC USER amp INSTALLATION MANUA ENGINEERING V 1 or Even when the apparatus is not connected to its power supply terminals can be electrically live and the opening of covers or removal of parts is likely to expose live parts The card must be disconnected from all voltage sources before it is disassembled for
14. e Current Measurement Card and available accessories Cards are provided with collector bars mounted and mounting bars as a whole Separate part numbers for collector bars and mounting bars are provided only for replacements tem Part Number 24 channels card SNVO22EC A Collector AL bar SNVO22M 005 Collector AL bar larger terminal opening SNVO22M 013 Mounting bar terminals side SNV022M 002 Mounting bar collector bar side SNVO22M 004 16 channels card SNVO22EC B Collector AL bar SNVO22M 017 Mounting bar terminals side SNVO22M 020 Mounting bar collector bar side SNVO22M 022 according to drawings see ANNEX A Table 3 CMC ordering information SNV Engineering Ltd SNV SNVO22EC USER amp INSTALLATION MANUA ENGINEERING V1 or Safety instructions The Combiner Box Card SNVO22EC A is designed and manufactured to be functionally safe for persons who operate or service it Potential hazards are addressed by a combination of careful system design and appropriate warning labels However during its operation high voltages apply on the card As a consequence the card is capable of causing serious personnel injury and damage to equipment if installed operated or serviced improperly CAUTION To the card will be connected high voltage signals up to 1000Vdc The installation is considered to be done from qualified personnel The card should be installed in such a way that there is no access to it by han
15. e used Voltage on them is amplified through precision amplifiers and then sampled and processed by a 32bit CORTEX M3 microcontroller at 96MHz The microcontroller can deliver measurements through an isolated serial RS485 bus transceiver using Modbus protocol It can also hold values in order to perform simultaneous measurements through all the cards in a bus and then retrieve all the measurements The microcontroller is also calculating the average of voltage currents and current square values with 667Hz sampling for each channel The averaging period is indicated marked by a master controller SNV Engineering Ltd SNV ENGINEERING SNVO22EC USER amp INSTALLATION MANUA V1 or broadcast command Averaged values of different cards are synchronized and then collected Bandwidth consumption on the bus is limited giving the ability for a prompt response of the rest requests A contact input is also implemented in order to monitor other component like the condition of an SPD Board temperature is also measured and provided Features The SNVO22EC A offers the following see also specification tables 24 channels on board fuse holder clips for positive and negative side on board current collector bars ready to connect to disconnection switch 24 independent dc current measurement at positive side O 13 5A current measurement range other ranges are available on demand 0 1000V voltage measurement Very Low Sen
16. et new target address 1 Ox 01 e n TT if command is change address y then set new target address MODBUS Functions Modbus package structure SNV Engineering Ltd 27 SNV SNVO22EC A USER amp INSTALLATION MANUAL V1 0 ENGINEERING ADU Ex E gt ee ee _ _ PDU For protocol description see MODBUS APPLICATION PROTOCOL SPECIFICATION v1 1b Implemented Modbus functions are as in the following table MODBUS FUNCTION DESCRIPTION 1 0x01 Read Coils 4 0x04 Read Input Registers 8 0x08 Diagnostics 16 0x10 Write Multiple Registers 17 0x11 Report Slave ID Serial Line only 20 0x14 Read File Record 21 0x15 Write File Record 43 0x2B Ox0E Read Device Identification CAUTION Do not use functions 20 and 21 can cause damage to card Functions 20 and 21 are used for device calibration SNV Engineering Ltd ONV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V1 Technical Assistance If you need technical assistance or should it be necessary to return your product for repair or calibration use the contact details below SNV Engineering Ltd Papadiamantopoulou 24B 11528 Athens Greece web site www snveng gr email snv snveng gr tel 30 210 7779260 fax 30 210 7703223 SNV Engineering Ltd 29 N SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 Annex A Drawings List of drawings DX secas sea meme Le an
17. k E weite pawe 09 01 2013 1 1 SNV SNVO22EC B Holder Bar 2 Assembly cr AA A SNVO22M 022 AA SNV Engineering Ltd 33 ONV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V 1 Section view H H Scale 1 1 Front view Seca 1 1 ra 1 PN i Material AL6063 sheet thikness 10mm Designed m Date Scale General Tolerances 1502768 mk Eo RR d LaL a a SNVOZ22EC B Collector Bar 1 SNV SNVO22M 017 a _ NOTES Material Back Plate from Rittal RITTAL 1077 500 AE 760x760x210 General Tolerances 1502768 mK ME DRE E Taner Quartty T eame desywion mara dimension ste Ale No Reference Designed by Approved by date Date Scale M Valdakis 09 01 2013 11 F SNV Rittal back plane for SNVO22EC B dia A SNVO22M 025 e a Sneha E EL Li 3 Front view Scale 1 4 SNV Engineering Ltd 34 SNV SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 iB 1 2 3 4 5 7 8 A 2xSNVO22M O17 SNV22M 02 5 A RITTAL 1077 500 AE 760X760X210 SNVO22EC B B DC Main Switch B Isometric view C Seale j TE C TP ASS J Spacer D D 2xSNVO22M 022 E E SNVO22M 025 Hole quide 4 33 A Designed by Approved by date Date Scale M Valdakis 09 01 2013 11 F SNVO22EC B Assembly Rittal box LY L1 I I I E LI rr 1 i lsometric view Sea les 1 4 SNV Engineering Ltd 35 a A EC
18. lector output String Collector output Figure 1 CMC SNVO22EC ATopology Diagram The SNVO22EC A uses the connectors CON1 CON2 CON3 CON4 and CON5 CON6 to connect to the bus and power supply see table 1 These connectors are equivalent terminals are common and can be used as bus power supply input or output to the next card in the chain or install terminal bias resistors Connector CON7 has two pins to connect a dry contact switch The connector CON7 is used to monitor a switch or a sensor acting as a switch ex surge protection door opening disconnector trip etc SNV Engineering Ltd SNV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V1 CAUTION A At the connectors CON1 CON2 CON3 CON4 CON5 CON6 and CON7 should be connected only to safety extra low voltage systems The connections for the connectors CON1 CON2 CON3 CON4 CON5 CON6 and CON7 are listed in the table 1 Dry contact input CON5 CON6 Table 1 CMC Connectors Description CON3 CON4 CON1 CON2 The connector plugs used are equivalent to the ones listed in the following table Manufacturer P N For CON1 CON2 20020006 HO41B01LF For CON3 CON4 20020006 H041BO1LF For CON5 CON6 20020006 H041BO1LF For CON7 20020006 HO21B01LF Table 2 Connectors Description SNV Engineering Ltd SNV SNVO22EC USER amp INSTALLATION MANUA ENGINEERING V 1 or Ordering Information Listed below are part numbers for th
19. mounting and support 12 Housing preparation nieni a ar un 13 Cables and USOS aa 14 Connectors plug preparation 15 Carcuinstalla ON son 15 Cardreplace Mentali 18 DIMENSIONS asgl 19 Operator ic 20 Fuse Tepic Met a 20 Communication and Monitoring ss 20 Modbus Memory Map 21 MODBUS FUN CHO Susanita r 27 Technical ASISTAN Cita ee 29 ANNEXA DaWINES ee ie emo 30 SNV Engineering Ltd Annex B Recommended board integration 36 Single Ine disgrazia 36 SIDIN GN TIT 37 PRolos assiale aa LA aa T PT ONA 38 SNV Engineering Ltd SNV ENGINEERING Description Overview SNVO22 USER amp INSTALLATION MA A V1 EC NU or SNVO22EC A is a combiner box card with dc current voltage measurement and with one digital input It is designed to be used in photovoltaic parks with central inverters in order to connect in parallel strings and monitor string currents and voltage combiner box central PV strings inverter EJ CH HT ra ff 343 combiner i box card Pg CRC Pa HIHI LL LAM SILA monitoring It has on board fuse holder clips for each string for both positive and negative side avoiding extra cabling and material costs Current collector bars are premounted and designed to be directly connected to the disconnector switch for a more clear installation and cost efficient Current measurement is performed on the positive side Low thermal drift high quality shunt resistors ar
20. nonces e EI SNVO22M 025 SNVO22EC B Back Plate holes guide El SNVO22M 026 SNVO22EC B Assembly layout SNV Engineering Ltd 30 SNV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V 1 24 X e B 0 Y Ls A v wv b ui Y Y w Y T Li w wv in v Y uw Y Y as ia 704 uj u u i uu u q iu q iu U qu uy ul BE LU i u UU U uu W E B Section view B B Front view Section view A A Scale 1 2 Scale 1 2 Scale 1 2 m a e SEH Top view Scale 1 2 NOTES Material PA66 or PAG sheet thikness 18rm General Tolerances 1902768 nk SNVO22EC Holder Bar 1 Assembly Edition Sheet SNVO22M 002 PEM PFLB M5 1 EH iu uut v H 5 HH ti Uu du u us us u u u ul u u u u i u u ul ul ul uy Section view C C Front view Scale 1 2 Scale 1 2 da AA Tre uan Timo designation mater dimension ste Arico Na Roferenco ferre Mate P SNVO22EC Holder Bar 2 Assembly A NOTES Material PAG6 or PAG sheet thikness 18rm General Tolerances 1902768 mK SNV Engineering Ltd 31 ONV SNVO22EC A USER amp INSTALLATION MANUAL ENGINEERING V1 0 7 H Front view Scale 1 2 510 5 amp gt Top view Scale 1 2 Memref Quantity Title Name designation material dimension etc Article No Reference by
21. pesn JOU pa3eJane JUDIING a QD A No un No 99 No 99 No un No Y Y o Y Y D D Lv Lv QD Lv Lv Lv QD D D D D QD UN Pun Wl SL SL SL SL SL SL S ams Wl Wl QD Y Y Y Uv Y QD Uv Y D D D D U Q Q Q Q Q Q Q Q Q Q Q Q o a 5 e TE t t t t t lt t t t t t lt t t aD o o o g9 o o g9 o g9 o o o Co o o o o o o o o o o O O O O O O O O O O O O O O O O O O O O O O E ru rm rm ru rm ru rum rum Roll Immo OQ uwulwl ol slanalmisin on LT MI OO Qui ol slalmisiInloInR on a OJO lulu ol ATIN NINA N I NINE NINN OEM MLM CO On en Cn en MIM cn eon en en eno siti I III in ol dlc oJjo o ojoo ojlooljoooco oojolojolooj olooj oloojjoloojololo loojoloojoloojoo o alia 2 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x D Oo 0000 0000 ol ol ol ol ol ol ol ol ol ol ol ol lol ol ol lol ol ol lo ol ol ol ol ol oo amp olo A N M LN N O IAIN Im Ty im joO Mmi o0 0 HINI LN N O IAIN Im Ty imnjoO mi o0 0O HIN dim st t LU uu uuu L N LN LA LN Oo t O Co NIN NINI INININ NIRN IA 00 00 D SNV Engineering Ltd CN CN EC A NUAL 22 MA SNVO TION USER amp INSTALLA NV ENGINEERING 0 V Channel A A A A A A
22. rom non grounded plates e ensure dielectric strength gt 3 5kV e ensure flammability rating better than 94V1 e ensure operating temperature range and aging strength depending application specifications All M5 bolts must be tight with torque 3 4 Nm to ensure the conductivity Use plain washer DIN125 and above lock washer DIN127 between ring terminal or common bar and bolt head Do not apply lock washer directly on the card Housing preparation The box where the card is installed is considered to be a metallic and or plastic box In case of not using self tapping screws the plate of the box is suggested to have a drilling pattern like the one shown in figure 4 for the mounting of the card O SNV Engineering Ltd 13 SNV ENGINEERING SNVO22EC USER amp INSTALLATION MANUA V1 or due Figure 2 Drilling pattern Cables and fuses The cables should be properly selected and sized according to the application specifications Voltage must not exceed 1000VDC A fuse 10x38 gPV type must be installed on the card fuse clips with rated current up to 16A appropriate voltage rating CAUTION Voltage must not exceed 1000VDC A fuse must be installed for each current measurement channel separately with rated current up to 16A For the preparation of the cables connected to the current channels the IPC 620 have to be followed by the installer SNV Engineering Ltd SNV ENGINEERING Card Install
23. ses Figure 6 Place the connectors for bus and indicator SNV Engineering Ltd 17 ONV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V1 Figure 7 Mounting the common current cable on the CMC SNVO22EC A E All screws must have lock washer and simple washer as illustrated in the above picture Card replacement During the replacement of the card any power source is prohibited O SNV Engineering Ltd 18 SNV ENGINEERING Dimensions SNVO22EC USER amp INSTALLATION MANUA V1 or The Combiner Box Card SNVO22EC A dimensions are LxWxH in mm gt 500x230x40 without collector and mounting bars gt 520x230x40 with collector and mounting bars The Combiner Box Card SNVO22EC B dimensions are LxWxH in mm gt 348x230x40 without collector and mounting bars gt 368x250x40 with collector and mounting bars See drawing for more details SNV Engineering Ltd 19 ONV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V1 Operation Fuse replacement The suggesting steps to replace fuse are 1 See the safety instructions for high voltage areas Ensure that you have wear all the appropriate equipment 2 Switch off the main switch 3 Use the appropriate tool to remove the fuses Careful not to connect the conductors that are near 4 Use the appropriate tool to install the new fuse Careful not to connect the conductors that are near 5 Switch on the main swit
24. sing resistance on measurement channels 10mO system voltage up to 1000Vdc 667Hz sampling per channel 1 contact input Board temperature measurement On board long time averaging and integrations Communication using MODBUS over RS485 Board power consumption 1 5W Operating temperatures 20 C to 60 C 32bit ARM CORTEX M3 microcontroller Y 96MHz CE EMC EN61326 1 and Safety EN61010 1 SNV Engineering Ltd SNV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V1 Specifications Electrical Characteristics OOOO pote min 18 Power supply Absolute Consumption 24V DC OA all 24 channels 21 24V DC 13 5A all 24 channels 45 18V DC OA all 24 channels 18V DC 13 5A all 24 channels 18V DC 16A all 24 channels Measurement channel each resistance Channel maximum current 16 Note 1 The value is for each installed board Note 2 The maximum number of cards to be installed in series is 127 Note 3 Equipment pollution degree 2 Note 4 Current values lower than 35mA are pulled down to zero Note 5 Voltage values lower than 1V are pulled down to zero Physical amp Environmental Characteristics eS A Operating Temperature 20 C to 60 C Storage Temperature 40 C to 100 C 500x230x40 mm Board Dimensions See User and Installation manua LxWxH for detailed drawings Meets EN 61326 1 EMC Emissions EN 61000 6 3 EN 50081 1 EN 55011 Class A ITE Mee
25. ts EN 61326 1 EN 50082 1 EN61000 4 3 Radiated EM fields immunity EN61000 4 4 Fast transient burst EFT EN61000 4 5 Surges EN61000 4 6 Conducted EM fields immunity Also successfully tested Criterion A at Conducted immunity at 10Vrms and Radiated immunity at 10V m instead of 3Vrms and 3V m required from the above standards see accuracy report for immunity levels Meets EN 61010 1 Annex A EMC Immunity issue nia RATED CLASS and RATED TRANSIENT dd OVERVOLTAGES 1 5KV Indoor or outdoor use installed Usage in a metallic and or plastic box SNV Engineering Ltd SNV SNVO22EC A USER amp INSTALLATION MANUAL 0 ENGINEERING V1 Measurement Specifications pot n 1a ee Maximum averaging time 15 days at 667Hz sampling Current measurement 0 496 reading 0 296 range 13 5A accuracy ADC resolution 12bit Thermal Drift on board 0496o compensated Note 6 0 04 0 C Voltage measurement Y o accuracy Calibration voltage 700 V Note 6 Compensation even for averaged values is performed before value transmission using actual board temperature measured by the on board temperature sensor Long time averaging with large temperature variations could produce thermal drifts on the transmitted values respectively Communications and bus Specifications Hardware layer RS485 Modbus RTU Default baud rate 9600 bps Bus Short Circuit Protection Max number of nodes
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