Sunny Boy 700 String Inverter Sunny Boy 700
Contents
1. voltage grid pull out the AC plug or switch the P EM fal line circuit breaker to its off position Make sure the grid cannot be inadvertently of reconnected 1 2 You must make sure that no voltage is present at the AC output before opening the Sunny Boy 2 Disconnect the DC plug connectors for all strings Make sure you note the order of the individual inverter inputs so you can put them d back in the right place later H ___ Si J si Disconnect the PV generators from the Sunny Boy 3 Taking one DC plug connector at a time measure the voltages between one DC plug connector of a string and earth potential Pay attention to the safety warnings PE ini Measure the voltage between DC plug connectors and earth potential Caution Dangerous high voltages may be present Danger of A death 4 If the measured voltages are constant and if their total is roughly the same as the open circuit voltage of the string then there is a earth fault in this string Its approximate location can be deduced from the relationships between the voltages Installation Guide SB700 11 SE2006 Page 41 Replacing the varistors SMA Technologie AG 5 Repeat points 3 and 4 for each string If you found a earth fault it is probably not necessary to replace the varistors Instead make sure the ground fault is fixed Generally the PV generator s installation eng2. 5 2 Electrical installation A Check the correct polarity before you connect the PV strings The complete wiring for a Sunny Boy 700 is shown schematically in the following diagram max 2 5 mm M Communication String 1 String 2 Page 20 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation Connecting the AC output Before you connect the mains cable to the AC connection socket make sure that no voltage is present at the cable A round plug connector system is used which allows various cable diameters to be used in the cable outlet For this reason the accessories kit includes a PG13 5 pressure screw and a PG16 pressure screw Check which screw fitting is the right one for your AC cable To connect up the AC output follow these steps 260 V the Sunny Boy 700 will not be fully operational In this case contact the local grid operator for assistance Max 260 V The maximum grid voltage for feeding electricity into the grid is 260 V 1 Check the grid voltage If this is higher than 2 Isolate grid connection switch the line circuit e breaker to its off position make sure it cannot RA be switched back on and test to make sure no voltage is present E g 1 2 You must make sure that no voltage is pre
3. Harmonic distortion of output current at Ko gra 2 Pac gt 0 5 Picasa Short circuit strength Operating range grid voltage Operating range grid frequency All pole isolation on grid side Phase shift angle based on the current s fundamental frequency Overvoltage category Test voltage 50 Hz Test surge voltage Own consumption in night mode Page 36 SB700 11 SE2006 P P Kac ACmax ACnom fac cos phi 250 V based on 10 C cell temperature 96 V 200 V 7A 670 W 750 Wp DC plug connector Thermally monitored varistors lt 10 of the input voltage Ground fault monitoring Riso gt 1 MQ lt AW standby Short circuit diode 600 W 600 W 2 6A lt 3 Grid side via current regulation 198 260 V AC 49 8 50 2 Hz Independent disconnection device MSD redundant design 1 In 1 3 kV 1 s routine testing 5 s type testing 4 kV serial interface 6 kV 0 1 W Installation Guide SMA Technologie AG Technical data 7 3 Input voltage range 73 150 V DC 7 3 1 PV generator connection data Max input open circuit voltage Input voltage MPP range Max input current Max input power Recommended generator power All pole isolator on the DC input side Overvoltage protection Voltage ripple Insulation protection Operating consumption Reverse polarity protection Us 0 Us Prc PP 7 3 2 Grid connection data Nominal
4. SMA Technologie AG Installation requirements 4 Installation requirements Please check that all of the conditions listed below are met before installing and setting up the Sunny Boy 4 1 Installation site requirements The Sunny Boy 700 weighs 16 kg Please take this weight into account when choosing the installation site and method of installation The ambient temperature must be within 25 C 60 C lt I The Sunny Boy 700 should be installed in a place where it is not exposed to direct sunlight An increased ambient temperature can 16 kg reduce the yield of the PV system The Sunny Boy is designed to be mounted on a vertical wall For an optimum energy yield and the most convenient operation vertical installation at eye level is preferable In case it is absolutely necessary to tilt the Sunny Boy to the back the maximum angle is 45 If installing the unit outdoors make sure that it is not slanting forwards It is not recommended to install the Sunny Boy lying on the back side with the lid facing upwards SN WS I lt TS Mount the Sunny Boy in a vertical position or Do not mount the Sunny Boy with an with a slight angle to the back angle to the front or on the back Installation Guide SB700 11 SE2006 Page 13 Installation requirements SMA Technologie AG When choosing the installation site be sure to note the following damage the plug and result in bodily injury or death Install the Sunny Boy
5. Threaded sleeve Socket element Page 22 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation 5 Now screw the threaded sleeve onto the socket element and tighten it Threaded sleeve screwed onto socket element sealing ring 6 Now screw the pressure screw into the threaded sleeve and tighten it The cord grip with the sealing ring is pressed into the threaded sleeve and can no longer be seen Pressure screw The AC connecting socket is now fully assembled If you are not going to connect up the Sunny Boy immediately close off the socket element using the cap supplied in the accessories kit If the Sunny Boy is already installed you can now connect up the fully assembled AC connection socket to the flange plug on the Sunny Boy To do this remove the protective cap from the flange plug on the Sunny Boy Firmly tighten the threaded ring on the AC connecting socket to the flange plug to seal the connection and secure it may only be connected to the AC grid once the PV strings are Do not switch the line circuit breaker on yet The Sunny Boy 700 connected and the device is securely closed Installation Guide SB700 11 SE2006 Page 23 Installation SMA Technologie AG Connecting the AC plug with PG16 To connect a cable with a diamter between 13 5 mm and 16 mm proceed as follows 1 First of all slide the pressure screw with the PG16 screw fitting onto the cable Now slide the threaded slee
6. Voltage range without MSD 180 V 260 V Frequency range without MSD 45 5 Hz 54 5 Hz The Sunny Boy 700 is equipped with an automatic 50 Hz 60 Hz utility frequency detection It can therefore be connected to a 50 Hz or 60 Hz utility without any further configuration changes Pay attention to the local utility regulations in any case Page 18 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation 5 Installation 5 1 Mounting the unit To make the job easier we recommend you use the supplied wall bracket to mount the Sunny Boy 700 For vertical installation on solid concrete or block walls for example you can fit the bracket using 8 mm x 50 mm hexagon bolts to DIN 571 standard stainless steel type and with wall plugs type SX8 When selecting the mounting materials be sure to take into account the weight of the Sunny Boy 700 16 kg 1 Fit the wall bracket 1 To mark the positions to drill the holes you can use the wall bracket as a drilling template 2 Now hook the Sunny Boy 700 onto the wall bracket 2 at its upper mounting plate so that it cannot be moved sideways 3 Fix the Sunny Boy 700 onto its bracket by screwing the supplied M x10 bolt into the central threaded hole at the bottom of the bracket 3 4 Make sure the Sunny Boy 700 is positioned securely on the bracket Installation Guide SB700 11 SE2006 Page 19 Installation SMA Technologie AG
7. cable and cords against overcurrent DIN VDE 0100 part 410 Protective measures protection against electric shock 1 The standards mentioned above are to be only used as a guideline for your installation They apply for installations in Germany Please note that other standards will apply for different countries throughout the world Page 16 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation requirements The system impedance at the installation site of the Sunny Boy 700 must be less than 1 Ohms for the islanding detection and the fuses to work porperly In addition we recommend dimensioning the cable cross section so that line losses do not exceed 1 at the nominal power Line losses depending on the cable length and cross section are shown in the graph below It shows a multi conduit cable with all conduits made of copper Do not use cables where the losses will exceed 1 0 The maximum cable lengths for the different cable cross sections are as follows Cable cross section 1 5 mm 2 5 mm Max length 33 m 55m Installation Guide SB700 11 SE2006 Page 17 Installation requirements SMA Technologie AG The Sunny Boy 700 is designed for operation on 230 V grids and works at grid voltages of 198 V to 260 V at 49 8 Hz to 50 2 Hz Limit values for AC output Voltage range 198 260 V Frequency range 49 8 Hz 50 2 Hz
8. electrically separated Wireless data transmission Optional Efficiency Max efficiency Nmax 93 4 96 European standard efficiency 92 The efficiency of the Sunny Boy 700 depends mainly on the input voltage of the connected PV strings The lower the input voltage the higher is the efficiency of the Sunny Boy 700 Page 38 SB700 11 SE2006 Installation Guide SMA Technologie AG 7 5 Operating parameters Technical data Unauthorised changes to the operating parameters may result Injury or accidents as a result of changing the internal safety routines in the Sunny Boy Voiding the Sunny Boy s operating approval certificate Voiding the Sunny Boy s guarantee Never change the parameters of your Sunny Boy without express authorization and instructions The parameters with a grey background are only visible when in installer mode Name Unit Value range Factory setting Betriebsart MPP IKonst UKonst Stopp Turbine MPP Operating mode Mode Insel Mode Default GER ENS dFac Max Hz s 0 005 4 0 0 5 dZac Max mOhm 0 20000 350 E Total kWh 0 200000 Fac Delta Hz 0 4 5 0 19 Fac Delta Hz 0 4 5 0 19 h_Total h 0 200000 LNiTest mA 0 6000 4500 Testcurrent Zac 4000 3500 Speicherfunktion Default Parameter Reset Betriebsdaten none Memory function Reset Fehler Speicher Storage Permanent volatile P
9. in such a way that it is not possible e g for children to unplug the DC plug connector unintentionally Unintentionally pulling out the DC plug connector under load can Individual components in the Sunny Boy can reach a temperature of more than 60 C in areas where highly inflammable materials are stored or in Do not install the Sunny Boy on flammable construction materials potentially explosive environments When choosing the installation site ensure there is enough space for heat to dissipate Under normal conditions the following guidelines should be applied for the space to be kept clear around the Sunny Boy 700 Minimum clearance Sides 20 cm Top 20 cm Sea Underneath 20 cm In front 5 cm gt ERS In domestic installations the unit should not be mounted on plasterboard walls or similar as otherwise audible vibrations are likely to result We recommend securing the unit to a solid surface The Sunny Boy 700 will emit a slight noise during operation This noise can be annoying when the Sunny Boy is installed within a living area Page 14 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation requirements 4 2 PV generator requirements The Sunny Boy 700 is designed to be connected to up to two strings PV modules wired in series having a homogenous structure modules of the same type identical orientation tilt and number The Sunny Design
10. output power Peak output power Nominal output current Harmonic distortion of output current at Ky lt 2 Pac gt 0 5 Pacnon Short circuit strength Operating range grid voltage Operating range grid frequency All pole isolation on grid side Phase shift angle based on the current s fundamental frequency Overvoltage category Test voltage 50 Hz Test surge voltage Own consumption in night mode Installation Guide P P Kac AC nom ACmax AC nom Unc fac cos max 250 V based on 10 C cell temperature 73V 150V 7A 510 W 600 Wp DC plug connector Thermally monitored varistors lt 10 of the input voltage Ground fault monitoring Riso gt 1 MQ lt AW standby Short circuit diode 460 W 460 W 2A lt 3 Grid side via current regulation 198 260 V AC 49 8 50 2 Hz Independent disconnection device MSD redundant design 1 Ill 1 3 KV 1 s routine testing 5 s type testing 4 kV serial interface 6 kV 0 1 W SB700 11 SE2006 Page 37 Technical data SMA Technologie AG 7 4 Device description For a detailed description of the device see the operating instructions General data Protection category per DIN EN 60529 IP65 Dimensions w x h x d 322 mm x 290 mm x 180 mm approx Weight 16 kg approx External interfaces Data transmission over mains power line Optional Data transmission over separate data cable Optional RS232 5485
11. the device If you require further information please call the Sunny Boy hotline on the following number 49 0 561 95 22 499 Installation Guide SB700 11 SE2006 Page 7 Foreword SMA Technologie AG Page 8 SB700 11 SE2006 Installation Guide SMA Technologie AG Safety information 2 Safety information Check your plant configuration and the string sizing with Sunny Design available at www SMA de or with the Sunny Boy Hotline before you start with the installation Exceeding the specifications with the input voltage will destroy the Sunny Boy Overvoltage on the DC side can even cause dangerous explosions of the Sunny Boys input capacitors and explosions of the electrolytes coming from the exploded capacitors Work on the Sunny Boy with the lid removed must be carried out by a qualified electrician Hazardous and even lethal voltages can be encountered within the enclosure Before working on the Sunny Boy with the lid removed the AC and DC voltages MUST be disconnected from the Sunny Boy and it must be sure that all capacitors are discharged The Sunny Boy must be disconnected from the mains and precautions must be taken to prevent the grid being reconnected In addition the connections to the PV generator must be disconnected After isolating the AC and DC voltage you must wait approx 30 minutes for the capacitors in the Sunny Boy to discharge Only then is it safe to open the unit by removing the lid You must
12. the line circuit breaker to the on position On 13 Now check whether the LED display on the Sunny Boy 700 indicates that the device is functioning correctly of If no earth fault and no defective varistor were found there is probably a fault in the Sunny Boy In this case contact the SMA hotline to discuss what to do next Installation Guide SB700 11 SE2006 Page 43 Replacing the varistors SMA Technologie AG Page 44 SB700 11 SE2006 Installation Guide SMA Technologie AG Rating for a line circuit breaker 9 Rating for a line circuit breaker Example for the thermal rating for a line circuit breaker in a photovoltaic electrical power unit operated in parallel with the low voltage grid We assume a PV system with 9 Sunny Boy 700 inverters with three inverters per phase Required technical information for the inverters used Maximum output current 3 5 A Maximum permissible fuse protection for the inverter 16 A The choice of cable together with the way it is routed ambient temperatures and other underlying conditions limit the maximum fuse protection for the cable n our example we assume that the chosen cable 2 5 mm is ideally routed and can take a nominal current of 11 A Selecting a line circuit breaker The maximum possible nominal current for the cable used and the maximum possible fuse protection for the inverter now limit the
13. 27 5 4 SIdTIUD ides E 30 6 Opening and closing the Sunny Boy 33 6 1 Opening the Sunny 33 6 2 Closingthe 33 7 35 7 1 Input voltage range 119 250 V DC 35 7 1 1 PV generator connection 35 7 1 2 Grid connection 35 7 2 Input voltage range 96 200 V DC 36 7 2 1 PV generator connection 36 7 2 2 Grid connection 36 7 3 Input voltage range 73 150 V DC 37 7 3 1 PV generator connection 37 7 3 2 Grid connection 37 7 4 Device 38 7 5 Operating 39 8 Replacing the 41 9 Ratingfora line circuit breaker 45 49 Installation Guide SB700 11 SE2006 Page 5 Table of Contents SMA Technologie AG Page 6 SB700 11 SE2006 Installation Guide SMA Technologie AG Foreword 1 Foreword technicians The installer must be approved by the utility company Please read the installation guide carefully before you begin with the instal
14. AMT Sunny Boy 700 String Inverter Sunny Boy 700 SB700 1 1 SE2006 IME SB700 Version 1 1 Installation Guide SMA Technologie AG Explanation of Symbols used in this Document Explanation of Symbols used in this Document and safe operation of the product Please read these sections care fully in order to avoid any damages of the equipment and for op timal personal protection This symbol indicates information that is essential for a trouble free the product Read these sections carefully in order to ensure an optimal ope This symbol indicates information that is required for the optimal operation of ration of the product and all its features This symbol indicates an example Installation Guide SB700 11 SE2006 Page 3 Legal Restrictions SMA Technologie AG Liability exclusion The information contained in this documentation are the property of SMA Technologie AG No part of this documentation may be published without written permission from SMA Technologie AG A reproduction for internal purposes for the evaluation of the product or an appropriate application is permitted and does not require authorization All information are based on our General Terms and Conditions of Delivery of SMA Technologie AG The content of this documentation is reviewed continuously and adjusted if necessary SMA Technologie AG provides this documentation without exclusion of deviations and without warranty of completeness You wi
15. Check the string voltages again to make sure they are within the limits stated in section 4 2 PV generator requirements page 15 If the string voltages are too high the PV generator s planner installer should be called upon for assistance If despite checking the string voltages the LED signal occurs again when the PV generator is connected to the Sunny Boy 700 disconnect the PV generator from the Sunny Boy again and contact SMA Technologie AG see section 10 Contact page 49 Page 30 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation Green Red Yellow Status off off OK feeding grid on off failure i on OK initialization blinking quickly off off OK stop 3 x per second on off failure ui nonni off failure on blinking off off OK derating ea on off failure off off OK night standby off on blinking failure off failure idi on blinking failure For a detailed description of the fault messages and their causes see the operating instructions Installation Guide SB700 11 SE2006 Page 31 Installation SMA Technologie AG Page 32 SB700 11 SE2006 Installation Guide SMA Technologie AG Opening and closing the Sunny Boy 6 Opening and closing the Sunny Boy If you need to open the device for whatever reason please pay attention to section 2 Safety information page 9 6 1 Opening the Sunny Boy Caution Follow t
16. also make sure that no voltage is present in the device The electronics inside your Sunny Boy 700 is vulnerable in terms of electrostatic discharge Be sure to be connected to ground e g the enclosure of the Sunny Boy before handling anything within the enclosure of the Sunny Boy Installation Guide SB700 11 SE2006 A A Page 9 Safety information SMA Technologie AG Page 10 SB700 11 SE2006 Installation Guide SMA Technologie AG Overview 3 Overview 3 1 Unit description The following diagram gives a schematic overview of the various components and connection points inside the Sunny Boy 700 with the lid removed Varistors Socket for communication page 41 RS232 RS485 NLM Piggy Socket for Back Radio display unit Terminal block for setting the input voltage range Slots for setting the input voltage range III la o o o o o status Communications connector ii UU Connection plug AC page 21 PE protective pelea plug earth connecting pag cable for lid Installation Guide SB700 11 SE2006 Page 11 Overview SMA Technologie AG 3 2 External dimensions 180 mm 322 mm gt 290 mm Page 12 SB700 11 SE2006 Installation Guide
17. at Ko gra 2 Pac gt 0 5 Pacnom Short circuit strength Operating range grid voltage Operating range grid frequency All pole isolation on grid side Phase shift angle based on the current s fundamental frequency Overvoltage category Test voltage 50 Hz Test surge voltage Own consumption in night mode Installation Guide P P Kac AC nom ACmax AC nom 250 V based on 10 C cell temperature 119 250 V 7A 780 W 900 Wp DC plug connector Thermally monitored varistors lt 10 of the input voltage Ground fault monitoring Riso gt 1 MQ lt AW standby Short circuit diode 700 W 700 W 3A lt 3 Grid side via current regulation 198 260 V AC 49 8 50 2 Hz Independent disconnection device MSD redundant design 1 Ill 1 3 KV 1 s routine testing 5 s type testing 4 kV serial interface 6 kV 0 1 W SB700 11 SE2006 Page 35 Technical data SMA Technologie AG 7 2 Input voltage range 96 200 V DC 7 2 1 PV generator connection data Max input open circuit voltage Input voltage MPP range Max input current Max input power Recommended generator power All pole isolator on the DC input side Overvoltage protection Voltage ripple Insulation protection Operating consumption Reverse polarity protection Us 0 Us Prc PVmax PP 7 2 2 Grid connection data Nominal output power Peak output power Nominal output current
18. e the maximum current carrying capacity for fault free operation is higher than the maximum output current of the inverter used It will trip under rated operating conditions If the calculated current carrying capacity of the circuit breaker had been lower than the maximum output current from the inverter the following solution might have been used By spacing the circuit breakers at an interval of 8 mm the reduction factor would be 0 98 instead of 0 77 As a result the maximum current carrying capacity would increase to 9 4 A As well as the thermal rating of the circuit breakers and all other factors as specified in section Rating for a line circuit breaker in a photovoltaic electrical power unit operated in parallel with the low voltage grid page 16 of course the applicable DIN VDE standards also need to be taken into account The main ones that apply here are DIN VDE 0100 part 410 DIN VDE 0100 part 430 DIN VDE 0298 part 4 In special applications the relevant standards must be followed 1 The standards mentioned above are to be only used as a guideline for your installation They apply for installations in Germany Please note that other standards will apply for different countries throughout the world Installation Guide SB700 11 SE2006 Page 47 Rating for a line circuit breaker SMA Technologie AG Page 48 SB700 11 SE2006 Installation Guide SMA Technologie AG Contact 10 Contact If you have any questions or
19. ermanent T Start s 5 300 10 T Stop s 1 3600 2 Uac Min Vac Min V 180 300 198 Uac Max Vac Max V 180 300 260 Upy Start 125 250 150 Vpv Start 100 200 125 75 150 95 Usoll Konst V 125 330 275 Vconst Setpoint 100 330 275 75 330 275 Installation Guide SB700 11 SE2006 Page 39 Technical data SMA Technologie AG The following parameters are displayed in the parameter list but cannot be changed Name Unit Value range Description Plimit Ww 700 Upper limit for AC output power 600 460 SMA SN Serial number of the Sunny Boy Software BFR Firmware BFR Firmware version of the operation control unit BFR Software SRR Firmware SRR Firmware version of the current control unit SRR Page 40 SB700 11 SE2006 Installation Guide SMA Technologie AG Replacing the varistors 8 Replacing the varistors The Sunny Boy 700 is a complex high technology device As a result the possibilities for fixing faults on site are limited to just a few items Please don t try to carry out repairs other than those described here Use the SMA Technologie AG 24 hour exchange service and repair service instead If the red LED on the status display glows continuously during operation you should first of all make sure that there is no earth fault in the PV generator 1 Disconnect the Sunny Boy 700 from the low
20. he sequence below under all circumstances A M Switch the line circuit breaker to the off position Disconnect the PV generator from the Sunny Boy 700 Wait 30 minutes Remove the four screws from the lid and pull the lid off the enclosure Unlock the green yellow PE connection and remove it from the lid and take the lid off 6 2 Closing the Sunny Boy Caution Follow the sequence below under all circumstances A Reconnect the earth wire PE to the lid Now secure the lid to the Sunny Boy 700 by tightening the four screws evenly Connect the PV generator Switch the line circuit breaker to the on position Now check whether the LED display on the Sunny Boy 700 indicates that the device is functioning correctly Installation Guide SB700 11 SE2006 Page 33 Opening and closing the Sunny Boy SMA Technologie AG Page 34 SB700 11 SE2006 Installation Guide SMA Technologie AG 7 Technical data Technical data 7 1 Input voltage range 119 250 V DC 7 1 1 PV generator connection data Max input open circuit voltage Input voltage MPP range Max input current Max input power Recommended generator power All pole isolator on the DC input side Overvoltage protection Voltage ripple Insulation protection Operating consumption Reverse polarity protection Us 0 PP 7 1 2 Grid connection data Nominal output power Peak output power Nominal output current Harmonic distortion of output current
21. ide SB700 11 SE2006 Page 15 Installation requirements SMA Technologie AG We recommend using a 16 A line circuit breaker to protect the power circuit No loads should be connected to this power circuit Rating for a line circuit breaker in a photovoltaic electrical power unit operated in parallel with the low voltage grid Various factors should be taken into account when selecting line circuit breakers These include for example The type of cable used conductor material and insulation Ambient temperatures affect the cables higher temperatures result in a reduced maximum current load Method of routing the cable reduces the ampacity of the conductor Bundling cables together reduces the ampacity of the conductor Loop impedance Z in the event of a body contact this limits the current that can flow and therefore determines the response behaviour of the circuit breaker Adequate clearance between the circuit breakers in order to avoid excessive heating automatic circuit breakers trip earlier when they are warmer Selectivity Protection class of the connected load VDE 0100 part 410 Protection against electric shock Please have look at chapter 9 Rating for line circuit breaker page 45 The following standards should be followed in all cases DIN VDE 0298 4 Cable routing and current carrying capacity DIN VDE 0100 part 430 Protective measures protection of
22. ineer should be hired for this job In this case continue as described under point 10 but without reconnecting the faulty string Instead of reconnecting the string protect its DC plug against accidental touch contact e g by fitting the protective caps or using sufficient high voltage insulating tape If you did not find any earth fault in the PV generators it is likely that one of the thermally monitored varistors has lost its protective function These components are wearing parts Their functioning diminishes with age or following repeated responses as a result of overvoltages You can now check these varistors in the following way paying attention to the safety information in section 2 Safety information page 9 Remove the screws that secure the lid and remove the lid from the Sunny Boy 700 Disconnect the PE connection from the lid Make sure that no voltage is present Using a continuity tester check all the varistors to see if there is a conducting connection between connectors 2 and 3 If there isn t then that varistor is not working The positions of the varistors in the Sunny Boy 700 can be seen in section 3 1 Unit description page 11 Replace the varistor concerned with a new one as shown in the drawing to the right Ensure the varistor is installed the right way round If you do not receive a special tool for operating the terminal clamps with your replacement varistors please contact SMA As an alternative the te
23. lation The installation of utility interactive power sources must be compliant with all applicable regulations of the utility company and with all applicable regulations and standards The installation of the Sunny Boy may only be done by qualified The Sunny Boy 700 is equipped with the SMA grid guard This is a type of independent disconnection device It ensures that the Sunny Boy 700 complies Q3 with the VDEW Verband der Elektrizit tswirtschaft German Electricity Industry Association regulations for the connection and parallel operation of electrical power units to the low voltage grid of the electricity supply company and with DIN VDE 0126 4 99 which is a part of these regulations This installation manual is intended solely for qualified electricians Its aim is to help install and set up SMA Sunny Boy SB 700 inverters quickly and correctly For detailed information on troubleshooting and on how to use the Sunny Boy 700 including information about the different communication options please see the operating instructions The Sunny Design tool will help to dimension and check the size of your strings with respect to the inverter you intend to use Further information about Sunny Design is available at www SMA de If your Sunny Boy is equipped with a communication interface you will find detailed instructions for installation in the description of the communication interfaces Piggy Backs which has been delivered with
24. ll find the current version on the Internet at www SMA de or can obtain it via the usual sales channels Warranty or liability claims for all kinds are excluded in case of damages due to Inappropriate use of the product Operation of the product in an improper environment Operation of the product without considering the relevant safety regulations Non fulfillment of the warnings or safety instructions described in the documentation for the product Operation of the product under faulty conditions concerning security and protection Arbitrary changing of the product or the provided software Failure of the product due to interference of connected or contiguous devices out of legal limit values Disasters and force majeure Software Licensing The use of the provided software by SMA Technologie AG is subject to the following conditions The software may be reproduced for internal purposes and installed on any number of computers Provided source codes can be changed and adjusted on the company s own authority according to the internal purpose Driver may be ported to other operating systems as well No part of the source codes may be published without written permission of SMA Technologie AG Sublicensing of the software is not acceptable Liability limitation SMA Technologie AG disclaims liability for any direct or indirect consequential damages arising from the use of the software produced by SMA Technologie AG The same applies for the p
25. maximum possible nominal current for the line circuit breaker n our example 10 A is possible However the thermal suitability of the line circuit breaker still needs to be checked Installation Guide SB700 11 SE2006 Page 45 Rating for a line circuit breaker SMA Technologie AG When selecting line circuit breakers a number of load factors need to be taken into account These can be found in the respective data sheets Example for the thermal selection of a 10 A line circuit breaker with B sensitivity with no gap between the circuit breakers For example one manufacturer s circuit breaker may be designed for an ambient temperature of 50 C Load factors according to data sheet specifications Reduction through permanent load gt 1h 0 9 Reduction when 9 circuit breakers are arranged side by side without gaps 0 77 Increase in nominal current as a result of ambient temperatures of 40 C in the circuit breaker panel 1 07 3 Result The nominal load current for the line circuit breaker is calculated as Ibn 10 Ax 0 9 x 0 77 x 1 07 7 4A 1 Permanent loads of longer than 1 hour are possible in photovoltaics 2 When only one circuit breaker is used this factor 1 3 Because the circuit breakers are rated for 50 C Page 46 SB700 11 SE2006 Installation Guide SMA Technologie AG Rating for a line circuit breaker Summary The selected line circuit breaker can be used in our example case sinc
26. n see the input voltage ranges associated with the slots from the drawing below we Terminal in the slot for 119 250 V DC Slot for 96 200 VDC Slot for 73 150 V DC 4 A ww The slots for the jumpers are Jumper slot for Jumper slot for mounted on the Sunny Boy 700 s 96 200 V DC 73 150 V DC controller board When supplied from the factory no jumper is fitted A jumper only needs to be used if you want to operate the Sunny Boy 700 with a lower input voltage i e at 96 200 V DC or at 73 150 V DC Page 28 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation To adjust the input voltage follow these steps 1 Open the Sunny Boy 700 as described in section 6 1 2 Pull the terminal upwards out of the terminal block and plug it into the appropriate slot 3 Plug the jumper provided in the accessories kit into the corresponding slot on the controller board If you want to use the Sunny Boy 700 with the maximum input voltage range then do not use the jumper 4 the jumper is in place and the terminal plugged into the correct slot close the Sunny Boy 700 as described in section 6 2 There is a schematic view of the c
27. onnectors in the table below Voltage range Terminal block Jumper Terminal in slot 1 _ No jumper used 119 250 V DC factory setting Terminal in slot 2 Jumper fitted to 200 V positio 96 200 V DC Terminal in Jumper fitted to slot 3 150 V positio 73 150 V DC Installation Guide SB700 11 SE2006 Page 29 Installation SMA Technologie AG 5 4 Startup You can start up the Sunny Boy 700 when the lid is securely screwed on the enclosure the AC mains cable is connected correctly the DC cables PV strings are fully connected and the unused DC plug connectors on the bottom of the enclosure are closed using the protective caps How to start up the inverter 1 First of all switch the line circuit breaker to the op On position 2 Check whether the LEDs indicate trouble free operation of the Sunny Boy 700 based on the table on the next page In that case startup has been successfully completed second the grid voltage and the PV generator must be disconnected from the Sunny Boy 700 immediately There is a risk of damage to the inverter resulting from excessive DC input voltage If the bottom yellow LED flashes four times at intervals of one
28. rminal contacts can be operated using a suitable screwdriver Since the failure of one varistor is generally due to factors that affect all varistors in a similar way temperature age inductive overvoltages it is highly recommended that you replace both SY asus crimp must be fitted to varistors not just the one that is obviously nel i pci Insert the special tool to open the terminal clamp Remove the varistor terminal 1 when replacing the varistor defective The varistors were specially manufactured for use in the Sunny Boy 700 and are not commercially available They must be ordered directly from SMA Technologie AG SMA order code SB TV1 Page 42 SB700 11 SE2006 Installation Guide SMA Technologie AG Replacing the varistors still can feed electricity into the grid The input is not protected against overvoltages in this case Replacement varistors should be obtained as soon as possible In systems with a high risk of overvoltages the Sunny Boy 700 should not be operated with defective varistors In case there are no spare varistors available the Sunny Boy 700 9 Reconnect the PE connection on the lid and close the Sunny Boy 700 10 Connect up the faultless PV generator strings to the inverter 11 Close off the unneeded DC input sockets using gni S the protective caps supplied in the accessories kit String 1 String 2 12 Switch
29. rovision and or non provision of support Provided software not produced by SMA Technologie AG is subject to the respective licensing and liability agreements of the manufacturer Trademarks All brand and product names used herein are trademarks or registered trademarks of their respective holders although they may not be specifically designated as such SMA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 5 61 95 22 0 Fax 49 5 61 95 22 100 www SMA de E Mail info SMA de 2005 SMA Technologie AG All rights reserved Page 4 SB700 11 SE2006 Installation Guide SMA Technologie AG Table of Contents Table of Contents 1 7 2 9 Jd OVSIVIBW Livii TE AEG REED eeu 11 3 1 Unit 11 External 12 A Installation requirements 13 4 1 Installation site requirements 13 4 2 PV generator 15 4 3 Low voltage grid 230 V 15 5 1 19 5 1 Mounting the unit 19 5 2 Electrical installation 20 5 3 Setting the input voltage
30. sent at the AC output before opening the Sunny Boy 3 Nowtake the AC connection socket parts included in delivery of your Sunny Boy 700 and connect up the cable with shielding and insulation stripped as described on the following pages Pressure screw for PG13 5 amp ye eue Sealing ring for PG13 5 for PG13 5 Threaded sleeve Pressure screw version PG 16 for large cable cross sections Socket element Installation Guide SB700 11 SE2006 Page 21 Installation SMA Technologie AG Connecting the AC output with PG13 5 To connect a cable with a maximum diameter of 13 5 mm proceed as follows 1 Press the sealing ring into the cord grip S Cord grip Sealing ring 2 Now slide the pressure screw over the cable first of all followed by the cord grip with the sealing ring in it Now slide the threaded sleeve over the cable Pressure screw Cord grip with sealing ring Threaded sleeve 3 Now connect the individual conductors to the socket element in sequence Protective earth PE green yellow to the screw terminal with the earth sign It is required that the PE wire is slightly longer than the L and N wires Neutral conductor N blue to screw terminal 1 Live L brown or black to screw terminal 2 Terminal 3 remains unused Terminals in the socket element 4 Make sure the wires are securely connected Connected wires Pressure screw Cord grip with sealing ring
31. technical problems concerning the Sunny Boy 700 please contact our hotline Please have the following information available when you contact SMA Inverter type Type and number of connected modules Communication method Serial number of the Sunny Boy EMY Address SMA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 0 561 95 22 499 Fax 49 0 561 95 22 4699 hotline SMA de www SMA de Installation Guide SB700 11 SE2006 Page 49 Contact SMA Technologie AG Page 50 SB700 11 SE2006 Installation Guide SMA Technologie AG Hannoversche StraBe 1 5 34266 Niestetal Germany Tel 49 561 9522 0 info SMA de SMA Solartechnology China Vertrieb SMA Italien International Metro Center Via Lorenzo Valla 16 Building A City Square No Jia 3 20141 Milano Shilipu Road Changyang District Italy 100025 Beijing PR China Tel 39 02 847421 Tel 86 10 65 58 78 15 www SMA CHINA com SMA America Inc Vertrieb SMA Spanien 12438 Loma Rica Drive Unit C Balmes 297 Grass Valley CA 95945 USA 08006 Barcelona Tel 1 530 273 4895 Spain www SMA AMERICA com Tel 34 639 403683 AAT Innovation in Systemtechnik a AWAM m f r den Erfolg der Photovoltaik
32. tive caps supplied in the accessories kit String 1 String 2 Page 26 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation 5 3 Setting the input voltage The Sunny Boy 700 was developed for a nominal output power of 700 W This corresponds to a PV input voltage range of 119 250 V DC at the nominal output voltage For solar generators having an input voltage range of 96 200 V DC or 73 150 V DC it is possible to adjust the Sunny Boy 700 s input voltage range accordingly In other words it is also possible to connect smaller PV generators to the Sunny Boy 700 Input voltage range Nominal output power 119 250 V DC 700 W 96 200 V DC 600 W 73 150 V DC 460 W For small PV systems please note The Sunny Boy 700 must be adjusted for the number of PV modules so that it Q3 works in the optimum range Installation Guide SB700 11 SE2006 Page 27 Installation SMA Technologie AG The Sunny Boy 700 is factory set for the highest input voltage To be able to use it for smaller PV systems you need to make some minor modifications to the unit Inside the Sunny Boy 700 at the top right there are a number of terminal blocks The top double terminal is not relevant for adjusting the input voltage range Below the double terminal there is a single terminal This terminal is used to adjust the input voltage Below this terminal there are two free slots You ca
33. tool will help to dimension and check the size of your string with respect to the inverter you intend to use Information about the Sunny Design tool is available at www SMA de The unit has four DC plug connectors two for each string for connecting the PV generators The connecting cables from the PV generators must also be fitted with this type of plug connector A pre assembled set for connecting the free cable ends from a string is available as an optional accessory The SMA order codes for the various connectors are as follows Multi contact mm SWR MC e Multi contact 4 mm MC SET Tyco TYCO SET Limit values for DC input Max voltage 250 V DC Max input current 10 A DC 4 3 Low voltage grid 230 V AC The Sunny Boy must have a three conductor connection to the mains live L neutral N protective earth PE The grid connection terminals on the AC connection Cable Wire socket included in the accessories kit can take wires diameter crosssechon with a cross section of up to 2 5 mm The accessories kit also contains a PG13 5 AC connection socket for connecting cables with a diameter between 9 mm and 13 5 mm while the PG16 connection socket is used for cables with a diameter up to a maximum of 17 mm For detailed instructions see sections Connecting the AC output with PG13 5 page 22 and Connecting the AC plug with PG16 page 24 max 2 5 mm Installation Gu
34. ve cap from the flange plug on the Sunny Boy Firmly tighten the threaded ring on the AC connecting socket to the flange plug to seal the connection and secure it may only be connected to the AC grid once the PV strings are Do not switch the line circuit breaker on yet The Sunny Boy 700 connected and the device is securely closed Installation Guide SB700 11 SE2006 Page 25 Installation SMA Technologie AG PV string DC connection To connect up the input follow these steps 1 Check that the PV generator connectors have the right polarity and do not exceed the maximum string voltage of 250 V DC See also section 4 2 PV generator requirements page 15 A Caution Dangerous high voltages may be present Danger of death 2 Taking one DC plug connector at a time measure the direct current voltage between one DC plug connector of a string and earth potential 3 f the measured voltages are constant and if their total is roughly the same as the open circuit voltage of the string then there is a earth fault in this string Its approximate location can be deduced from the relationships between the voltages Do not connect strings to the Sunny Boy 700 that contain a earth fault until you have fixed the earth fault in the PV generator 4 Repeat points 2 and 3 for each string 5 Connect up the faultless PV generator strings to the inverter 6 Close off the unneeded DC input sockets using the protec
35. ve over the cable Pressure screw with PG16 screw fitting Threaded sleeve 2 connect the individual conductors to the socket element in sequence Protective earth PE green yellow to the screw terminal with the earth sign It is required that the PE wire is slightly longer than the L and N wires Neutral conductor N blue to screw terminal 1 Live L brown or black to screw terminal 2 Terminal 3 remains unused Terminals in the socket element 3 Make sure the wires are securely connected Connected wires Pressure screw with PG16 screw fitting Threaded sleeve Socket element 4 Now screw the threaded sleeve onto the socket element and tighten it Threaded sleeve screwed onto socket element Pressure screw with PG16 screw fitting Page 24 SB700 11 SE2006 Installation Guide SMA Technologie AG Installation 5 Now screw the pressure screw into into the threaded sleeve and tighten it 6 Firmly tighten the screw fitting against the seal and in order to fasten the cable Pressure screw PG16 screw fitting The AC connecting socket is now fully assembled If you are not going to connect up the Sunny Boy immediately close off the socket element using the cap supplied in the accessory kit If the Sunny Boy is already installed you can now connect up the fully assembled AC connection socket to the flange plug on the Sunny Boy To do this remove the protecti
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