Installation and User manual – SSB – P
Contents
1. N III The works described below must only be performed by electricians trained for PV installation N III The device carries lethal voltages The PV module strings can be live even when the string box s switch is turned off and the string protections are removed N III The DC line toward the inverter can be live even when the string box s switch is turned off Consider the inverter capacitors discharge time of 10 minutes NOTICE Use only fuses intended for use in photovoltaic applications Otherwise the protection of the installation will no longer be secured 5 1 1 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 see Chapter 3 4 Turn the manual switch off see Chapter 3 5 Pull the string fuse holder out see Figure 5 7 oO O Figure 5 1 Fuse link opened Manual 50608 Revision B1 20 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT 5 1 2 Q eleckroinvent 5 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 6 Close the string fuse holder 7 Turn the manual switch on The string is in operation agai2. The separate string currents are brought together through coupling joints and the manual switch toward the two DC output terminals The PV string currents are monitored and the data is sent to the inverter via serial interface the default fiber optical or the optional RS485 If an overvoltage occurs the accruing energy is discharged thorough a surge arrester PV 10S1 10U1 FB1FB2 FB3FB4 Surge Manual Arrester aja Switch x gg 10u1 LL 10S1 ay U PRR RER Type2 Cat 21B DE 10F1 il 10F2 10F20 il Figure 3 2 Circuit diagram of SSB P 20 200 1 0 Example of an SSB P with fuses on PV inputs only Manual 50608 Revision B1 7 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolnye Al PV 10S1 FB1FB2 FB3FB4 Surge Arrester ali switchi 7 10U1 ki 1os1 fy VN Type2 Cat 21B Figure 3 3 Circuit diagram of SSB P 30 300 2 0 Example of an SSB P with fuses on PV and PV inputs Note Check the circuit diagram of your model on the inner right side of the SSB P 3 1 Fuse Selection The fuses have to be selected according to Table 3 7 following the rule 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 at STC A A s
3. 13 3 6 4 Power connections to the inverter cccccseeeeeeeeeeeeeeeeeeaeeeeees 13 3 6 5 Communication Connections for Multi String Monitoring VAS E EE E EEE EE E E E E 15 3 6 6 PV strings CONNECTIONS eee nana 16 4 COMMISSION srine aa E EE 18 4 1 String Box Communication Configuration cc eee 18 42 TUNNO On le SOB P erenc i i i it Ei atei a ii 18 4 3 Turning Off the SSB P cccccccccscsseeeeesccsseeeeesnceseeeeeseceseeeenseceseneenees 19 5 Replacing defective fuse links and surge arresters csccseeeeeeseeeeeeseeeeeeeees 20 5 1 1 Replacing a Fuse eee eee eee eee na 20 5 1 2 Changing a Surge Arrester e eee eee 21 6 EC Declaration of Conformity ccccccsssssssseeeeeeseeeeessneeeeeeeeeceensneeeeeeseaees 22 7 Dala Sheet SSB ciur ia Ba ati aia tiu ui um ee a Bin Dl eae 23 Manual 50608 Revision B1 3 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q elleceltreolave Al 1 Introduction This high quality ELECTROINVENT photovoltaic string box is intended to connect up to 30 PV module strings depending on the type The box is also used to disconnect the DC from the inverter The 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 The SSB P is powered directly by the PV strings 1 1 Disclaimer ELECTROINVENT delivers optimized tested
4. 01 0415 Copyright ELECTROINVENT Q elleceltreolave Al KULELER B 25 P Available versions Dimensions O N mM P O SS5 P 15 150 1 PVG 200 mm SS8 P 20 2001 PVG 200 mm SSB P 25 250 1 PV 1000 mm 1050 mm 540 mm SSB P 30 300 1 PV 1000 mm 1050 mm 540 mm Ordering Information For technical or commercial information please contact the ELECTROINVENT sales office see Contacts on last page of this user manual Manual 50608 Revision B1 24 25 IUM SSB P EN V2 01 0415 Office Sales Service Copyright ELECTROINVENT Contacts Q electroiinvent 43 Cherni Vrah blvd 1407 Sofia PO Box 74 Bulgaria Q electroinvent 43 Cherni Vrah blvd 1407 Sofia PO Box 74 Bulgaria Q electroiinvent 43 Cherni Vrah blvd 1407 Sofia PO Box 74 Bulgaria Manual 50608 Revision B1 Tel Fax E Mail Web site Tel Fax E Mail Web site Hot line E Mail Web site 25 25 Q electroinvent 359 2 862 14 06 868 70 65 359 2 962 52 63 office Belinvent 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 service request elinvent com http www electroinvent com IUM SSB P EN V2 01 0415
5. Max DC output Max DC output Surge protector voltage current Type Upc 1000 V Ipc 200 A Il Conformity Rated ambient Insulation Protection temperature class LI class E Tamb 20 see 60 2 IP 54 Production date Item number Serial number March 2015 ART 22220 116 15 20001 3 Figure 1 1 SSB P type label 1 Product identification see also Figure 1 2 2 Valid electrical circuit diagram 3 Serial number of the string box The product identification type code Figure 1 1 1 description is shown in Figure 7 2 SSB P XX XXX X X Smart Strine Box Type of SSB P Passive with DC Manual Switch Number of Inputs 10 15 20 25 30 Maximum Output Current A 100 150 200 250 300 Protection fuses 1 only on PV inputs 2 on PV and PV inputs Revision Figure 1 2 Product identification description see Figure 1 1 1 Manual 50608 Revision B1 5 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolnyenk 2 Warnings and Notes A III The local installation standards must be obeyed The device must only be installed operated and maintained by qualified personnel A III The device carries lethal voltages The PV module strings can be live even when the string box s switch is turned off and the string protections are removed AN III The DC line toward the inverter can be live even when the string box s switch is turned off Consider the inverter
6. Overview of the Cable Glands 6 szree222 ooo o 2 Rl Sh 9 9 19 49 8 40 40 e E a ohicii o aieoie e w f a e Figure 3 9 SSB P cable glands exterior bottom view 1 PE 2 DC output 3 DC output 4 Communication interfaces 5 PV strings inputs 6 PV strings inputs Note See the labels on the inside 3 6 3 Schematic Example of a PV installation with SSB Ps PV Field 1 PV inverter lt 1_ lt J N ca E ra l l E i ee a TF EAr REA a ee PVn Fibre optic Fibre optic C A pyn _ interface interface PV Field 2 pts ts i P a a 2 LL L3 Lo gt terface Tracker 3 PV Field 6 l ss rea L PV2 SHE rara optie PVn interface The communication interface is optional fibre optic default or RS485 Figure 3 10 Schematic example of a PV installation with Smart String Boxes SSB P Manual 50608 Revision B1 13 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electreiave A 3 6 4 Power connections to the inverter 1 Open the string box door see Chapter 3 4 2 Turn the manual switch off see Chapter 3 5 Loosen the two screws Figure 3 11 4 completely and remove the protective transparent plate Figure 3 11 Power connections of SSB P 1 DC output busbar 2 DC outout busbar 3 PE 4 Screws of the protective transparent plate 4 First connect the grounding cable PE to the corresponding screw terminal Figure 3 11 3 using a cabl
7. capacitors discharge time of 10 minutes A III The string box is a part of an entire PV installation Consider all safety instructions displayed on the 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 AN N 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 50608 Revision B1 6 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolave Al 3 Installation Upper connection Heat exchanger SOLO Inverter Heat exchanger power supply Lower connection Outlet lt intlet gt GSM antenna Cortral signats Control SPS Ethernet Modem connection Telephone grid PY input 2 Grid power feeds IT grid system Auxiliary power supply Communication PY input 3 Figure 3 1 Example view of a photovoltaic installation with SOLO inverter smart string boxes and grid transformer A different number of PV strings can be connected depending on the string box model The positive poles of the separate power feeds are protected individually while the fuses on the negative poles are optional The type of the fuses must correspond to the maximum PV module string current
8. rules defined in Chapter 3 7 NOTICE Wrong rated fuse link can lead to damages both to the SOLO String Box and the PV strings A aS Potentially Lethal Voltage Assure that the four protective transparent plates against direct contact are mounted before proceeding with the commissioning Manual 50608 Revision B1 18 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q eleekroimve A When the PV modules power cables ground and communication lines in the PV installation are connected correctly the string box is ready for operation NOTICE Observe the instructions supplied in the user manual accompanying your photovoltaic inverter To connect the PV modules to the photovoltaic inverter turn the manual switch on and then close the door of the SSB P 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 Turning Off the SSB P In order to separate the PV modules from the inverter first turn the inverter off then open the string box and set the manual switch to OFF position NOTICE Observe the instructions supplied in the user manual accompanying your photovoltaic inverter Manual 50608 Revision B1 19 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q eleekrolimve Al 5 Replacing defective fuse links and surge arresters
9. Copyright ELECTROINVENT Q eleekroinvent Installation and User Manual for Photovoltaic Smart String Box Passive with manual switch SSB P 10 100 SSB P 15 150 SSB P 20 200 SSB P 25 250 SSB P 30 300 Manual 50608 Revision B1 Version 2 01 Copyright ELECTROINVENT Q electrolnye Al Contents 1 MroduUCHON aa cee ste inima i ii bn il nl dt seems 4 Weyl DISOIEIII EI o see stia E ale aaa are iei tii Soni dela erati ie Sem alte 4 1 2 IMPORTANT SAFETY INSTRUCTIONS eee 4 1 3 Scope of DSU ONY essesi en erein ain iama iale Be daniela te ni br ie eri dese dai 5 La Te Kez e lt ene ne emer MR RIN ee IRENE 5 2 Warnings and IN ONS acne ul magi ut ae ainu Emil sete dia a iii ia il a 6 RS cz cei o a MIE RIN RTR RI E E IER RS RR RR RR NR AR SRR ICI E NR 7 2l Fuse ae 2 2 61 6 9 eee ee oe e titi i ei ial 8 z2 LOCO CUOI eee eee eee E Oe ee eee Donatia roada tt See 8 39 Mechanical INSTAIATON smica eee seaieea ce euro ceea banala aie aria ia pupe a aloe Date 9 34 Opening ine SSB tc eoieo emo aaa sinea aro e detina ani o i ie ct aaa ie aa 9 O20 TURNARE OIL lie SSB Petece ecrane anii a a de Gila tina piara ti tai 10 S20 JISC ICAI IIS allel O lee cesotocaraaz ocs oo toata E at ale adi 11 3 6 1 Overview of the Electrical CONNECTIONS cmee eee 12 3 6 2 Overview of the Cable Glands cccccsssssssseeeeeeeeeesuaeeeeeeeeees 13 3 6 3 Schematic Example of a PV installation with SSB Ps
10. L R 2ms L R 2ms Note The fuses are factory pre installed according to the clients requirements for specified current 3 2 Location Selection e The SSB P is suitable for outdoor installation e The SSB P 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 string box should be mounted in a way minimizing or preventing collection of water and dirt and growth of moss Manual 50608 Revision B1 8 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolnye A 3 3 Mechanical Installation The 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 ever enter into the cabinet not even during installation Check the dimensions of your model in the datasheet last chapter of this manual Note The two climate valves Figure 3 4 must not be covered They ensure the air circulation inside the SSB P TOTEIS A e e e o o o o o oio Ca DO e A DI o Figure 3 4 Climate valves of the SSB P bottom view 3 4 Opening the SSB P Opening of the string box must only be performed by authorized personnel The absence of voltages PV lines and DC side must be ensured at all times The SSB P door is closed by means of i
11. ance 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 harmonized 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 EI jt CE Conformity SSB P Figure 6 1 EC Declaration of Conformity Manual 50608 Revision B1 22 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolnye Al 7 Data Sheet SSB P Electrical Data Maximum operating voltage 1000 Voce Fuses PV or PV and PV Maximum output DC current 100 A 150 A 200 A 250 A 300 A Maximum number PV inputs 10 15 20 25 30 strings Maximum input DC current per IstRmax 10A string String cur
12. ccording to the following sequence 1 Remove the fuses out of the fuse holders Figure 3 7 6 or Figure 3 8 6 and 8 2 Connect the PV string cables according to Table 3 5 and Table 3 6 NOTICE The connection points of user contact clamping spring cage terminals Table 3 5 are opened and closed using the supplied angled screwdriver see Figure 3 14 and Figure 3 15 After the conductor has been inserted into the terminal compartment it automatically makes contact Manual 50608 Revision B1 16 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolnye AK Figure 3 14 Opening a clamping spring cage terminal for PV string connection without fuse protection Figure 3 15 Closing a clamping spring cage terminal for PV string connection without fuse protection Table 3 5 PV strings connections without fuse protections see Figure 3 7 7 Clamping spring cage terminals 1 5 16 mm Cable gland 4 5 10 mm PV1 30 negative pole Note If the model of the SSB P includes fuse protections on the negative poles then the terminals specification is the same as for the positive poles Table 3 6 Observe the terminals labeling Table 3 6 PV strings connections see Figure 3 7 5 Terminal Function Specifications Fastening torque nominal maximal PV1 PV1 PV30 1 5 1 8 Nm positive pole Cu cross section 0 5 10 mm Cable gland 4 5 10 mm PV30 3 Measure the string
13. e lug 5 Then execute the power connections to the inverter following the sequence in Table 3 2 using cable lugs Observe the corresponding screw terminals see Figure 3 11 2 and 1 ee 3 2 Power connections to the inverter see Figure 3 11 Function Specifications Connection type Grounding Fastening torque Cable gland Negative pole Connection type Fastening torque Cable gland Positive pole Mount back the protective transparent plate Manual 50608 Revision B1 14 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT 3 6 5 Q eleckroinvent Communication Connections for Multi String Monitoring MSM NOTICE Make sure that the sequence is followed and the PV strings are not connected The string box monitoring communication can be done using the fiber optic interface default or RS485 optional The fiber optic interface Figure 3 12 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 and ending back to the inverter Figure 3 12 Glass fiber transmitter and receiver on MSM board default communication interface Table 3 3 Serial glass fiber optic interface specification Fiber optic Cable type Outdoor UV light Transmit data output resistant armored Fiber type Multimode 62 5 125 or 50 125 ay Fiber optic Cable end port ST type Receive data input R
14. ecommended A VQ BN H 1x4 Corning Cable Systems Cable gland 4 5 10 mm Note Instead of glass fiber optic RS485 Figure 3 13 interface is available on request Table 3 4 RS485 serial interface Cable type Outdoor UV light resistant Separable screw terminals E 2 RS485 B A GND Cu cross section 0 5 1 mm Recommended UNITRONIC Li2YCYv TP 2x2x0 5 or 3x2x0 5 Lapp Kabel Cable gland 4 5 10 mm Note The optional RS485 has to be realized as a bus terminating in the last string box with the termination resistance shift the white switches Figure 3 13 1 to ON position Manual 50608 Revision B1 15 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolnye Al Figure 3 13 RS485 communication interface optional 1 On Off termination resistance activation 2 RS485 connections 3 6 6 PV strings connections NOTICE Respect the correct PV polarity Wrong polarity of the PV inputs might cause damage to the string box and the PV modules NOTICE Never feed a DC inlet with voltages higher than 1000V Higher voltages lead to box damage Improper operation of 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 performed a
15. ents NOTICE The electrical lines must not come in contact with flammable materials Manual 50608 Revision B1 11 25 IUM SSB P EN V2 01 0415 L n L Copyright ELECTROINVENT Q electrolaveat 3 6 1 Overview of the Electrical Connections The locations of the electrical connections are shown in Figure 3 7 and Figure 3 8 7 ddd ddd oX 4 anu N o a 2 N a crm Pe acu a 2th nl Ar e a A et Figure 3 7 Location of the electrical connections in the SSB P 20 200 1 0 Example of an SSB P with fuses on PV inputs only 1 Overvoltage protection 2 DC output busbar 3 DC output busbar 4 PE 5 PV string input terminals 6 Fuse holders 7 PV string input terminals 8 Communication interface fiber optic Ta T 1 9 JARRE ASANTE ELLEELLE ti S TTT O _ yee 4 eS A 7 7 an ae i o r Pe ee mn PRI PRI e PP Pe pa E m Se ce m m ms m sam cms a y s LL iii Figure 3 8 Location of the electrical connections in the SSB P 30 300 2 0 Example of an SSB P with fuses on PV and PV inputs 1 Overvoltage protection 2 DC output busbar 3 DC output busbar 4 PE 5 PV string input terminals 6 Fuse holders PV 7 PV string input terminals 8 Fuse holders PV 9 Communication interface fiber optic Manual 50608 Revision B1 12 25 IUM SSB P EN V2 01 0415 N Copyright ELECTROINVENT Q eleceltreolave Al 3 6 2
16. 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 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 photovoltaic string box type SSB P XX XXX 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 commi
17. n 8 Close the string box door Changing a Surge Arrester The green indicator of the surge arrester 10U1 changes its colour to red when it is tripped also visible via communication interface 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 see Chapter 3 4 2 Turn the manual switch off see Chapter 3 5 3 Remove the defective surge arrester s by pulling it out of the fuse holder and place a new one see Figure 5 3 Figure 5 3 Removing a damaged surge arrester 4 Turn the manual switch on 5 Close the string box door Manual 50608 Revision B1 21 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolave A 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 P 15 150 2 0 SSB P 20 200 2 0 SSB P 25 250 2 0 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 compli
18. rent measurement range OAto10A Reverse string current measuring Yes Surge arrester Type II Test voltage 2 5 kV 50 Hz 1 min Power supply Directly from PV strings 300 Voc starting voltage 100 1200 Voc operating voltage Maximum power consumption 5 W Mechanical Data Dimensions o See on next page Weight with fuses PV only 28 kg 29 kg 30 kg 47 kg 49 kg with fuses PV and 30 kg 35 kg 36 kg 49 kg 51 kg PV Coor BAL 7088 light rey Enclosure material pe Glass fiber reinforced and halogen free polyester Protection class according to IP54 outdoor EN 60529 Impact strength according to IK10 EN 62262 Maximum air humidity 95 Ambient temperature range 20 C 60 C UV proof ee Yes Monitor Interface Multi string monitor MSM Status feedback Yes via communication interface reverse current manual switch on off surge arrester fault indication String current monitoring Yes via communication interface String voltage monitoring Yes via communication interface Box temperature monitoring Yes via communication interface Communication Interface Fiber optical interface default 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 Standards CE conformity EMC Yes EN 61000 6 2 EN 61000 6 4 EN 50178 Manual 50608 Revision B1 23 25 IUM SSB P EN V2
19. ssioning is performed The product must only be used for its intended purpose and unauthorized personnel are not allowed to open it 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 WARNING indicates a hazardous situation which if not avoided could result in death or serious injury NOTICE NOTICE refers to address practices not related to personal injury Failure to observe could lead to property damage Manual 50608 Revision B1 4 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q elleceltreolave Al 1 3 Scope of Delivery Table 1 1 Scope of delivery 1 pcs Smart String Box SSB P 1 pcs Wall mounting kit 4 parts 1 pcs Angled screwdriver 2 pcs Spare fuses for the strings 1 pcs Spare fiber optic connector if the default communication interface is used 1 4 Type Label The type label with the product identification is located on the inner left side of the box Type SSB P 20 200 2 0 A 1 Circuit diagram no V 1 00 R00 2 Max PV Max PV Number of string voltage string current string inputs Upy 1000 Voc Ipy 10 A n 20
20. ts handle Opening the door is done by pulling and swiveling the handle to the right see Figure 3 5 _ Figure 3 5 SSB P opening Manual 50608 Revision B1 9 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q eleekrolimve Al 3 5 Turning Off the SSB P AN Potentially Lethal Voltage Even if the manual switch is turned off the PV lines and the DC side might have lethal voltage NOTICE It is recommended that first the inverter should be turned off before carrying out the following activities string box not being on load Open the door of the SSB P and set the manual switch to OFF position Figure 3 6 ac e A A i lll Atl i ll ie Figure 3 6 Manual switch of the SSB P Manual 50608 Revision B1 10 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q eleekrolinvent 3 6 Electrical Installation N III 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 N III The device carries lethal voltages The PV module strings can be live even when the string box s switch is turned off and the string protections are removed N III The DC line toward the inverter can be live even when the string box s switch is turned off Consider the inverter capacitors discharge time of 10 minutes NOTICE The communication lines must be mounted in a way that wont allow them to be damaged by rod
21. voltage and check the polarity 4 Insert the fuses again Manual 50608 Revision B1 17 25 IUM SSB P EN V2 01 0415 Copyright ELECTROINVENT Q electrolnye A 4 Commissioning 4 1 String Box Communication Configuration Each SSB P has a unique 16 bit address which is the S N of the MSM unit Figure 4 1 2 The addresses of the SSB Ps are configured on the VCU of the inverter For more information see the Installation and User Manual of the SOLO inverter d i a Ti TIa TT 11111111 MOR Figure 4 1 MSM unit 1 LED indicators 2 SSB P address Check the two LEDs on the MSM unit Figure 4 1 1 The green left one shows power supply presence The red right one shows communication status This LED is blinking during transmission Note Each box issues an automatic identification message on the bus if there is nota single request to that box in a time range of 2 3 min Communication bus fault detection in a ring network The nodes before the fault receive requests and send responses their red LEDs are blinking more frequently than those of the nodes after the fault as they do not receive requests but only transmit automatic identification messages every 2 3 min 4 2 Turning On the SSB P Make sure that the PV PV DC DC PE and communication cables are correctly installed Check if the fuse links are rated for the correct current The fuse rating must comply with the
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