Installation and User manual – SSB
Contents
1. 1407 Sofia PO Box 74 Bulgaria Q electroiinvent 43 Cherni Vrah blvd 1407 Sofia PO Box 74 Bulgaria Q electroinvent 43 Cherni Vrah blvd 1407 Sofia PO Box 74 Bulgaria Tel Fax E Mail Web site Tel Fax E Mail Web site Tel Fax E Mail Web site 28 28 Q electroinvent 359 2 862 14 06 868 70 65 359 2 962 52 63 office elinvent com http www electroinvent com 359 2 862 14 06 868 70 65 359 2 962 52 63 sales elinvent com http www electroinvent com 359 894 66 11 37 359 2 962 52 63 service request elinvent com http www electroinvent com IUM SSB EN V3 01 04152. switch Figure 3 6 2 is in position ON In order to remove the protective cover first the main switch has to be set to position OFF Then the screws Figure 3 6 1 have to be unlocked using a slotted screw driver 1 4 revolution enn Figure 3 6 SOLO SSB protective cover 1 Screw 2 Main switch 3 SSB address indicators Electrical Installation The installation of the string box must only be performed by authorized personnel The absence of voltages PV and DC lines must be ensured at all times Manual 50605 The PV module strings and the DC line toward the inverter might be live even when the main switches of the SOLO String Box and the inverter are turned off and the string protections are removed Consider the inverter capacitors discharge time of 10 minutes NOTICE The power supply lines must be mounted in a way that won t allow them to be damaged by rodents NOTICE The electrical lines must not come in contact with flammable materials 12 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleckrolave A 3 5 1 Overview of the Electrical Connections The locations of the electrical connections in the SOLO Smart String Box are shown in Figure 3 7 1 9 2 3 8 4 7 5 Figure 3 7 Location of the electrical connections in the SSB 1 Overvoltage protection 2 Control and feedback terminals 3 DC output busbar 4 DC output busbar 5 PE 6 Fibre optic communica
3. 01 0415 Copyright ELECTROINVENT Q eleelkrolimve Al 3 1 3 2 Manual 50605 Fuse Selection The fuse selection must follow the rules below Maximum DC operating voltage of the fuse must be 1 2 x maximum voltage of string Rated current of the fuse must be higher or equal than 1 6 x Isc at standard conditions STC Isc short circuit current of panel Table 3 1 Fuse selection Isc short circuit Rated current of Pre arching Operating Joule current of panel the fuse A Joule integral integral A s A s L R 2ms L R 2ms Note The fuses are factory pre installed according to the client s requirements specified current The fuses have to be selected according to Table 3 1 Location Selection e The SOLO String Box is suitable for outdoor installation e The SOLO String Box should be positioned as close as possible to the PV modules e The string box must be easily accessible for operation and maintenance e A location without direct sun irradiation should be chosen e The SOLO String Box should be mounted in a way minimizing or preventing collection of water and dirt and growth of moss 9 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekrolmve Al 3 3 Mechanical Installation The SOLO String Box must be mounted vertically on a wall or on a stand with the cable glands Figure 3 4 on the bottom side using the supplied fitting materials where possible No liquid water oil etc should e
4. Glass fibre reinforced and halogen free polyester_ Protection class according to EN 60529 PF P55 outdoor Impact strength according to EN 50102 PO ee Max air humidity n et Ambient temperature range 20 C 60 C UV proof n es Chen String Box Interface DC contactor control input 230 Vac 10 15 50 Hz 10 Yo Pmax 40W String Box Monitor Interface Ready feedback Separate feedback for each Smart String Box Closed dry contact when ready Ready feedback output 24 Vacmc 18 36 V 2 A at 30 Voc Fibre optical interface standard Ring type serial interface connection RS 485 serial interface optional Separable screw terminal with 6 pins for easy bus wiring Galvanically isolated from monitoring electronic Options Stainless steel enclosure Fuses with visual indication when tripped PV disconnect type terminals Standards CE conformity EMC Yes EN 61000 6 2 EN 61000 6 4 EN 50178 Manual 50605 26 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleelkrolamve AK 582 WS a a a a ri 1 gt LA g S te LA K oi OO KE GO ch ON ci ON ch KE ol KA Gi E 782 Ordering Information For technical or commercial information please contact the ELECTROINVENT sales office see Contacts on last page of this user manual Manual 50605 27 28 IUM SSB EN V3 01 0415 Office Sales Service Manual 50605 Copyright ELECTROINVENT Contacts Q electoiaventk 43 Cherni Vrah blvd
5. NOTICE Use only fuses intended for use in photovoltaic applications Otherwise the protection of the installation will no longer be secured 22 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT 5 1 1 Manual 50605 Q elecltroiavent Replacing a Fuse NOTICE Observe the instructions in the user manual accompanying your photovoltaic inverter 1 Check on the inverter VCU or in the Web portal which string is not producing current This can be an indication of a damaged fuse Open the string box door Turn the main switch off Unscrew and remove the protective cover of the SOLO String Box o e N Pull the string fuse holder out Figure 5 1 Fuse link opened 6 Replace the fuse link with the correct rated one complying with the rules defined in Chapter 3 1 NOTICE A wrong rated fuse link can lead to damages both to the SOLO String Box and the PV strings Close the string fuse holder Mount the protective cover back Turn the main switch on The string is in operation again 10 Close and lock the string box door 23 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleclollave A 5 1 2 Changing a Surge Arrester The green indicator of the surge arrester 10U1 changes its colour to red when it is tripped Figure 5 2 Surge arrester see also Figure 3 7 1 The surge arrester is monitored by auxiliary potential free contacts 1 Open the SOLO String Box door Turn the main switch off
6. in the user manual accompanying your photovoltaic inverter To connect the PV modules to the photovoltaic inverter turn the main switch on Close and lock the SOLO String Box door The indication lamp on the door see Figure 3 5 2 should glow in red If the lamp is blinking this is an indication for a surge arrester or contactors or monitor electronic fault NOTICE The door must be closed properly in order to prevent the penetration of dust and humidity NOTICE Contaminations on the rubber seal must be avoided Damaged rubber seals must be replaced immediately 4 3 Manual 50605 lf the signal lamp is off this may be due to a light defect The box could still be in operation and live Turning the SOLO String Box Off In order to separate the PV modules from the inverter turn the main switch off NOTICE Observe the instructions supplied in the user manual accompanying your photovoltaic inverter 21 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekrolimve Al A a A n Manual 50605 Replacing defective fuse links and surge arresters The works described below must only be performed by electricians trained for PV installation The PV module strings and the DC line toward the inverter might be live even when the main switches of the SOLO String Box and the inverter are turned off and the string protections are removed Consider the inverter capacitors discharge time of 10 minutes
7. liability in case of accidents caused by inappropriate handling or work performed by unauthorized personnel which results in personal injury or damage to devices or any other subsequent damages 1 2 IMPORTANT SAFETY INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS This manual contains important safety and operating instructions for SOLO SSB A 14 140 and SSB A 25 250 photovoltaic string boxes Keep it with or near the equipment at all times Photovoltaic installations operate with lethal voltages and the work described here should only be performed by authorized personnel familiar with the installation mounting commissioning and the operation of PV installations This manual must be fully read and understood before installing or commissioning is performed The SOLO product must only be used for its intended purpose and unauthorized personnel are not allowed to open the SOLO product The faultless and safe operation of the product assumes appropriate transport specialized storage installation and mounting as well as correct operation and maintenance The relevant regional and country specific regulations and instructions must be obeyed as well as requirements described in this document including placement and installation instructions e g connection profiles torque settings etc Symbols and warning signs used A n WARNING indicates a hazardous situation which if not avoided could result in death or serious injury NOTICE NOTIC
8. the modules of the surge arresters have to be checked green red indicator and if needed exchanged see Chapter 5 1 2 If a warning stays despite of intact surge arrester modules the DC contactors have to be checked and if needed exchanged Table 3 6 String box feedback to the inverter see Figure 3 13 24 Voc Closed dry contact when ready 10X2 1 5 Ready feedback Spring cage 0 25 4 mm 10X2 2 Cu cross section 2x1 mm Cable gland 4 5 10 mm NOTICE The connection points of user contact spring cage terminals Table 3 5 and Table 3 6 are opened with a standard screwdriver After the conductor has been inserted into the terminal compartment the screwdriver is removed and the conductor automatically makes contact AT AW ttt ko W Figure 3 13 Contactor control and feedback see also Figure 3 7 2 18 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q elecollave A 3 5 7 Manual 50605 Serial Interface Connections For String Box Monitoring The string box monitoring communication can be done using the fibre optic interface standard or the RS485 interface optional The fibre optic interface Figure 3 14 3 requires a ring topology between the inverter and the string boxes Starting from the inverter the ring has to be connected from string box to string box with increasing address numbering and ending back to the inverter N Figure 3 14 String box monitoring c
9. voltage 1000Vdc 2 Max PV string voltage 1200Vdc Revision Figure 1 2 Product identification description see Figure 1 1 1 Manual 50605 6 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleclrollAve ak 2 Warnings and Notes MA n The local installation standards must be obeyed The device must only be installed operated and maintained by qualified personnel A n The device carries lethal voltages The PV module strings can be live even when the SOLO String Box switch is turned off and the string protections are removed The DC line toward the inverter can be live even when the SOLO String Box switch is turned off Consider the inverter capacitors discharge time of 10 minutes A n The SOLO String Box is a part of an entire PV installation Consider all safety instructions displayed on the SOLO String Box and on all the equipment connected to it and in the installation and user manuals Beware that an automatic restart can follow a grid or photovoltaic voltage failure If any information is unclear please refer to ELECTROINVENT Service Centre NOTICE Loss of warranty The box must not be damaged and no holes are allowed to be drilled in the cabinet Any transport damage must be reported to ELECTROINVENT Manual 50605 7 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekrolimve Al 3 Installation of the SOLO String Box Upper connection Heat exchanger SOLO invert
10. Copyright ELECTROINVENT Q eleeckrolAvent Installation and User Manual for Photovoltaic Smart String Box active with contactors SOLO SSB A 14 140 and SSB A 25 250 Manual 50605 Revision A1 Version 3 01 Copyright ELECTROINVENT Manual 50605 Q electroinvent Contents t TAN OQGUCU ON a ion y ri ion a n l r lp kn ae a kl kt a a kwa l n rt a ka e ka e ka au cs 4 iF DECIM loan au be ee en deja olie ae eta e ei tar kes pa y n e w peri e ee eee 4 1 2 IMPORTANT SAFETY INSTRUCTIONS 0Lvveeetrrttrerattattasaasttonnosenasronnnnoonn 4 sec SOUPE ON DENIV N YN came di a taye sion ka onet poko a ei oti ey n e kon ee ay ko eski ee tiye 5 tA ADE CIDE e tes eta nee E a et da e n er ey te e E eye eee e tate 5 2 Warnings and NoteS kwiv ate et ti kl tj a e l a kk a e n n a e ki ii ai a a a a 7 3 Installation of the SOLO String BOX ccc teesseeeeeeesseeeeeeeenseeeseeeenseeeseoeesseeesees 8 dal FUS TS ENN ON kaa fi tab ay oo eee eee ene een See ee ere 9 Be LOCO CE CUO csc a evite e oo ao j E de poet eten a ae e 9 3 3 Mechanical Installation ccccccceccccsececceseeseeeeeseeeeeseeesseeeesseeeessaeeeseneeees 10 3 4 Opening the SOLO Smart String BOX 0 0 eeeceeccecessseseseeeeeeeeessaseeeeeeeeees 11 3 4 1 Opening the SOLO Smart String BOX GOor ccccccssseeeeeeeeees 11 3 4 2 Removing the SOLO Smart String Box protective cover 11 3 5 Electrical Installation ccccccccccseccccecee
11. E refers to address practices not related to personal injury Failure to observe could lead to property damage Manual 50605 4 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleelkrolmve Al 1 3 1 4 Manual 50605 Scope of Delivery Table 1 1 Scope of delivery Quanity ae Smart String Box SSB Spare fibre optic connector Type Label The type label with the product identification is located on the right side under the protective cover Type SSB A 25 250 1 0 _ 1 Circuit diagram no V2 0 Rev 0 2 Max PV Max PV Number of string voltage string current string inputs Upy 1000 Voc lev 10 A n 25 Max DC output Max DC output Surge protector voltage current Type Upc 1000 V Ipc 250 A l Conformity Rated ambient Insulation Protection temperature class Oy class C Tamb 20 60 T 2 IP 55 Production date Item number Serial number 12 2011 ART 07550 116 17868968 7 3 Figure 1 1 SOLO SSB type label 1 Product identification see also Figure 1 2 2 Valid electrical circuit diagram 3 Serial number of the string box 5 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleelrolimve Al The product identification type code Figure 1 1 1 description is shown in Figure 1 2 Typical Part Number SS B A 25 250 1 0 Smart StrING Box A SOLO String Box with DC Contactors Number of Inputs 14 Inputs 25 Inputs Nominal Current 140 Amps 250 Amps Version 1 Max PV string
12. ICE Never feed a DC inlet with voltages higher than 1000V or 1200V if the relevant option is used Higher voltages lead to box damage Improper operation of the SOLO String Box may lead to the warranty being void and no liability for consequential damages will be undertaken In case of wrong poled strings never break the current flow by removing the fuses from the fuse holders A fuse holder must only be opened if no current is flowing The PV strings connections have to be done according to the following sequence 1 Remove the fuses out of the fuse holders Figure 3 10 3 2 Connect the PV string cables according to Table 3 3 and Table 3 2 NOTICE The connection points of user contact spring cage terminals Table 3 2 are opened with a standard screwdriver After the conductor has been inserted into the terminal compartment the screwdriver is removed and the conductor automatically makes contact 3 Measure the string voltage and check the polarity 4 Insert the fuses again Table 3 2 PV strings connections see Figure 3 7 8 Terminal Specifications 10X1 Pvi PV1 25 Spring cage terminals 0 5 10 mm 10X1 PV25 negative pole Cable gland 4 5 10 mm Table 3 3 PV strings connections see Figure 3 7 9 Specifications Fastening torque nominal maximal PV1 PV1 PV25 1 5 1 8 Nm PV25 positive pole Cu cross section 0 5 10 mm Cable gland 4 5 10 mm 15 28 IUM
13. SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekroimve A The String Box Monitor Figure 3 10 1 inside the Smart String Box with 25 inputs SSB A 25 is mounted on a swivelling plate which can be opened to install the PV strings cables For this purpose the two plastic screws on the right side of the plate Figure 3 10 2 have to be loosened completely The plate with the monitoring can be swivelled to the left until it is kept magnetically Figure 3 17 The PV terminals are now accessible i EET ele fe Je Je fe Jo je Je Je le fe fe fele fe e fe fo Figure 3 10 Smart String Box SSB A 25 1 String box monitor 2 Slotted cylinder head screws 3 Fuse holders e l 3 p E j 1 shi JE EE Pre KOY Ce KI ce Kwa r tak kin KAL Can ra Ka EIS kw ke fa Fae wtih mwan Mawon 5 pT ON YA LA A W CA AP NA A a a le je le a e je je e le a A E koni Zil kof ZO A kota co ee ki EA even A kaz Kate kot A ko ka ae Ae s XX MUU oon e LOTICLOSCIOGSOSCSSS TSC Mt orf fe k i 32333 Figure 3 11 String box monitor swivelled Manual 50605 16 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekroimve A 3 5 5 Power connections to the inverter The power connections have to be performed according to Table 3 4 in the following sequence 1 Before installation the protective transparent plate must be unscrewed and removed from the box 2 First the grounding cable PE must be connected using a ca
14. Unscrew and remove the protective cover of the SOLO String Box p N Remove the defective surge arrester s through pulling it out of the fuse holder and place a new one see Figure 5 3 i DEHNguard DG MOD PV SCI 600 p E ao ani Figure 5 3 Removing of a damaged surge arrester 5 Put the protective cover back 6 Turn the main switch on 7 Close and lock the string box door Manual 50605 24 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleelkrolamve AK 6 EC Declaration of Conformity EC Declaration of Conformity Manufacturer Electroinvent LTD 43 Cherny Vrah Blvd 1407 Sofia Bulgaria This declaration of conformity relates to string boxes SSB A 14 140 SSB A 25 250 The above described product is constructed and manufactured according to the good engineering practice in safety matters in compliance with the essential requirements of Directive 2006 95 EC of the European Parliament and of The Council of 12 December 2006 on the harmonization of the laws of Member States relating to electrical equipment designed for use within certain voltage limits and regarding electromagnetic compatibility in compliance with the essential applicable requirements of Directive 2004 108 EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility meeting accordingly the requirements of the following ha
15. ble lug to the corresponding screw terminal 3 Then the DC cables to the inverter are connected with cable lugs to the corresponding screw terminals The correct polarity must be observed 4 The protective transparent plate must be mounted back and screwed Table 3 4 Power connections to the inverter see Figure 3 12 Connection type Grounding Fastening torque Cable gland Negative pole Connection type ou Fastening torque DC Positive pole Cable gland ws no un n m Ne w s A kai oo a a Mit a Ni 2 ai W YE va eo ai a see also Figure 3 7 3 4 and 5 Manual 50605 17 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleckrolave A 3 5 6 Manual 50605 String Box Power Supply Control and Feedback Connections to the Inverter The connection of DC and DC terminals to PV and PV string joints is done by two contactors 10K1 and 10K2 They are switched on by 230Vac control line from the inverter connected according to Table 3 5 Table 3 5 String box power supply and control see Figure 3 13 10X2 3 SSB supply and 230 Vac y control L Spring cage 0 25 4 mm ioxp 4 SSB supply and Cu cross section 3x1 5 mm control N Cable gland 4 5 10 mm The connections for ready feedback signal to the SOLO inverter are shown in Table 3 6 If the string box is not ready despite the actuation of the contactors the SOLO inverter will report a warning In case of a warning
16. ceeceseeeeeseeeeeseeeeeseeesseeeesseeesaeeeees 12 3 5 1 Overview of the Electrical CONNECTIONS ceccceeeseeeeeeeeeeeees 13 3 5 2 Overview of the Cable Glands ccccceececeeceseeeeeeeesaeeeeeeeeeaeees 13 3 5 3 Schematic Example of a PV installation with Smart String BOXOG aie tata tk ta tk id E ti a ik a ae ei A a ini m 14 3 5 4 PV strings CONNECTIONS cccceeccecceeseecceeseeeceaeescseuseeceaeeeessaaes 15 3 5 5 Power CONNECTIONS to the inverter cceeccecseeeeeeeeeeeeeeeeeeeeeeees 17 3 5 6 String Box Power Supply Control and Feedback Connections to the INVErter cc ceeeeeeecceceeesseseeeeeeeesssseeeeeeeeees 18 3 5 7 Serial Interface Connections For String Box Monitoring 19 4 GOMMISSION N ese ai ki ia di l a a kd klik ki ki n n ai kaka kk a e kk a a kaa n ep ka 20 4 1 String Box Address Selection cccccccccceeceseseeceeeeeeeeeeeeseeeeeeeeeeseeeeeeeeeeas 20 4 2 Turning the SOLO String BOX On n ceccccseeeeeeeeeeeeeeaeeeeeeeeeeeesssaeeeeeeees 20 4 3 Turning the SOLO String Box Offf cccccccccseseeeeeceeeeeeeeeeeeeeeeeeessaaeeeeeeeeees 21 5 Replacing defective fuse links and Surge arrestefS cccsseeseeseeeeeneeeees 22 5 1 1 Replacing a FUSE wi ano kt via n kr as ke ee to a tik be avk it lak 23 5 1 2 Changing a Surge Arrester ccccccccecceccseseeceeseeeeeeeeseeeeneeeeseeas 24 6 EC Declaration of Conformity ccccccccsssssseee
17. eeeescceessneeeeeeeeeoeensneeeeeeseeoes 25 7 Data Sheet SOLO Smart String BOX cceesseeseeeeeeeeeseeeeeeeenseeeeeeeesneeessoneeneees 26 GON SENS secretes ease cee a e ae eet amc ve tl ae ti l a ui oem e kw a aaa 28 3 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleelkrolinmve Al 1 Introduction This high quality ELECTROINVENT photovoltaic string box is intended to connect up to 25 PV module strings The box is also used to disconnect the DC from the inverter The SOLO Smart String Box SSB measures the current of each string and sends data to the inverter This feature is essential for diagnostics and maintenance of PV panels and cabling 1 1 Disclaimer ELECTROINVENT delivers optimized tested equipment such as inverters and string boxes for Photovoltaic Power Plants The correct integration and interconnection of the equipment must be made according to the manuals and datasheets of ELECTROINVENT and is the responsibility of the System Integrator ELECTROINVENT does not accept liability for system design dimensioning of system related parts installation or the performance of the system The content of this manual is regularly reviewed for compliance with the hardware and software operation and any corrections are included in later editions Every effort is made to ensure the details in this manual are accurate Warranty claims will not be accepted in case of violation of the installation instructions and we do not accept
18. er Heat exchanger GSM antenna power supply Outlet tr Control signals Control SPS Ethernet Modem connection Telephone grid PV input 2 Grid power feed in IT grid system Auxiliary power supply e Figure 3 1 Example view of a photovoltaic installation with SOLO inverter SOLO string boxes and grid transformer A different number of PV strings can be connected depending on the string box type The positive poles of the separate power feeds are protected individually whereas the type of the fuses must correspond to the maximum PV module string current The separate string currents are brought together through coupling joints and contactors toward the two DC output terminals The PV string currents are monitored and the data is sent to the inverter via serial interface fibre optical or optional R8485 If an overvoltage occurs the accruing energy is discharged thorough a surge arrester me Multy String Monitoring String Box Monitor 3 10K1 10K2 10H1 L 1081 10K2 mm l 10U1 10G1 PSB Power Supply Box DC Contactors 10A1 Cat Il CE 0K2 10K1 q N a 8 Surge READY S j S il S i ai Arrester N I db T N a a N ch N 0O0000 10X2 0102 a Y a la 10X1 d Y Aa ee e J g she 10X2 3 4 Optical Feedback Interface RS485 Ready Contactor control 230 VAC Figure 3 2 Scheme of SOLO Smart String Box with 25 PV strings inputs Manual 50605 8 28 IUM SSB EN V3
19. fields Figure 4 1 3 are dedicated to put a handwritten string box address by a permanent marker EN gt JA Si ui fo n RAN gt waw a l ae DDEEON Cda 0 a 25 2 le 3 NA AG sesovue si AM Figure 4 1 Setting the address of the string box monitor unit 1 LED seven segment indicators 2 Keys for address selection 3 Field for writing the address Turning the SOLO String Box On Make sure that the PV strings DC DC signal and PE cables are installed correctly Check if the fuse links are rated for the correct current The fuse rating must comply with the rules defined in Chapter 3 1 NOTICE Wrong rated fuse link can lead to damages both to the SOLO String Box and the PV strings Potentially Lethal Voltage Mount the plastic protective cover for protection against direct contact before proceeding with the commissioning 20 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q electoiavenk The protective cover of the SOLO String Box can be dismounted or mounted only when the main switch is turned off see Figure 3 6 2 The screws of the SOLO String Box protective cover can be locked with the use of a slotted screwdriver with a quarter of a revolution clockwise When the PV modules power cables ground and communication lines in the PV installation are connected correctly the SOLO String Box is ready for operation NOTICE Observe the instructions supplied
20. onnections 1 On Off termination resistance activation 2 RS485 interfaces 3 Glass fibre transmitter and receiver Table 3 7 SSB serial glass fibre optic interface TX Fibre optic Cable type Outdoor UV light Transmit data resistant armoured Fibre type Multimode 62 5 125 or 50 125 Cable end port ST type Recommended A VQ BN H 1x4 Corning Cable Systems Cable gland 4 5 10 mm Fibre optic Receive data Note SSB RS485 Figure 3 14 2 interface is available on request RS485 has to be realized as a bus and terminated in the last string box with the termination resistance shift the white switches Figure 3 14 1 to position ON Table 3 8 SSB RS485 serial interface Terminal Function Specification Cable type Outdoor UV light resistant Separable screw terminals Cu cross section 0 5 1 mm RS485 B A GND Recommended UNITRONIC LIZYCYVv TP 2x2x0 5 or 3x2x0 5 Lapp Kabel Cable gland 4 5 10 mm 19 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekroimve A 4 1 4 2 AN Manual 50605 Commissioning String Box Address Selection All string boxes connected to a common serial interface should have unique addresses Up to 100 string boxes can be addressed in one bus using the two address selection keys Figure 4 1 2 The address number is selected with the help of a screwdriver and is indicated on the LED seven segment indicators Figure 4 1 1 The two empty rectangular
21. rmonized European standards EN 61000 6 2 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for industrial environments IEC 61000 6 2 2005 EN 61000 6 4 Electromagnetic compatibility EMC Part 6 4 Generic standards Emission standard for industrial environments IEC 61000 6 4 2006 EN 50178 Electronic equipment for use in power installations EN 50178 1997 Issued by J Torchanov CEO Electroinvent LTD This declaration confirms the compliance with the quoted directive but it does not constitute any warranty as to properties The safety information contained in the product documentation supplied must be adhered to Sofia 09 04 2015 J Torchanov Electroinvent LTD El jt CE Conformity SSB A Figure 6 1 EC Declaration of Conformity Manual 50605 25 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleelkrolimve Al 7 Data Sheet SOLO Smart String Box Electrical Data Maximum operating voltage 1000 Voc or 1200 Voc Maximum output current DC 250 A Maximum number PV inputs strings Po MO 25 Maximal input current DC per string String current measurement range Reverse string current measuring Surge arrester po Type State indication lamp on the door a Yes Test voltage po RKO HZ tin O SS WxDxH Surge arrester fault indication Yes auxiliary dry contacts WxDxH 735 x 270 x 535 Mechanical Data Dimensions in mm Weight 29 kg Colour pf RAL 7035 light grey Enclosure material __
22. tion interface 7 RS485 communication interfaces 8 PV string input terminals with common 9 PV string input terminals 3 5 2 Overview of the Cable Glands m n AY pE da 25 SA gt ae ERER kit at M e nn MA SA A _ amp e 9 Figure 3 8 SSB cable glands exterior bottom view 3 1 PE 2 DC outputs and 3 Control and feedback in and out 4 PV strings inputs 5 Serial interfaces Manual 50605 13 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleelkrolimve Ale 3 5 3 Schematic Example of a PV installation with Smart String Boxes PV Field 1 Smart String Box PV inverter PV1 Herce eI PV2 Control rt Control 1 Fen ponn Feedback n a Feedback 1 Ma ME BAL Fibre ok OU Fibre __ optic optic PVn interface interface PV Field 2 Smart String Box e E PE L2 EE a Control ii Control 2 PE Fen mn gn i Feedback e on Feedback 2 n Di e DAN miene o Tracker 3 PV Field 6 Smart String Box i Control 5 Feedback 5 Control oh Control 6 Feedback HA Feedback 6 PE wep PVn interface Figure 3 9 Schematic example of a PV installation with Smart String Boxes Manual 50605 14 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT 3 5 4 A n MA n Manual 50605 Q eleckroinvent PV strings connections NOTICE Respect the correct PV polarity Wrong polarity of the PV inputs might cause damage to the SOLO String Box and the PV modules NOT
23. ver enter into the cabinet not even during installation Figure 3 3 Dimensions drawing SSB A 14 SSB A 25 Note The two climate valves Figure 3 4 must not be covered They ensure the air circulation inside the SOLO SSB 6 j LOL m e o O e e e e e A A veye e ee 2 gt s e l l lr Figure 3 4 SSB bottom view exterior view 1 Climate valve 1 2 Climate valve 2 Manual 50605 10 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekrolinve Al 3 4 Opening the SOLO Smart String Box 3 4 1 Opening the SOLO Smart String Box door k A 2 mwn J OU Figure 3 5 SOLO SSB door 1 Locking Unlocking using the plastic key 2 Status signal lamp The SOLO String Box door is closed with the use of the supplied plastic key Opening unlocking the door is done by turning the supplied plastic key clockwise see Figure 3 5 1 3 4 2 Removing the SOLO Smart String Box protective cover Potentially Lethal Voltage Even if the main switch is turned off the PV lines and the DC side might have lethal voltage gt Removing the protective cover of the SOLO String Box must only be performed by authorized personnel The absence of voltages PV lines and DC side must be ensured at all times Manual 50605 11 28 IUM SSB EN V3 01 0415 Copyright ELECTROINVENT Q eleekrolimve Al 3 5 The protective cover of the SOLO String Box cannot be dismounted when the main
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