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SMA User Manual 3300-3800

1. Installation Guide SB33_38 IEN 100540 53 Troubleshooting SMA Solar Technology AG You can check the functionality of the varistors in the following manner 1 Open the inverter as described in section 7 2 Opening the Inverter page 37 2 Use a multimeter to check all the varistors in the y installed state to ascertain whether there is a Mi conducting connection between connectors B and Ca Close the inverter as described in section 7 3 Closing the Inverter page 39 Contact the SMA Serviceline see section 13 Contact page 66 MI There is no conducting The respective varistor is defective and must be replaced connection Varistor failure is generally due to influences which affect all varistors similarly temperature age induced overvoltage SMA Solar Technology AG recommends that you replace all varistors The varistors are specially manufactured for use in the inverter and are not commercially available You must order replacement varistors directly from SMA Solar Technology AG see section 12 Accessories page 65 e To replace the varistors proceed to step 3 NOTICE Destruction of the inverter by overvoltage If varistors are missing the inverter is no longer protected against overvolt
2. 3 Remove the AC plug connector from the inverter 4 Close the AC flange plug with the protecting cap 5 Close all DC inputs with the corresponding DC plug connectors and sealing plugs 56 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Decommissioning CAUTION Danger of burn injuries due to hot enclosure parts The inverter s enclosure can become hot during operation e Wait until the enclosure has cooled down 6 Ifa communication cable is available Open the inverter as described in section 7 2 Opening the Inverter page 37 Remove the communication cable from the inverter Close the inverter as described in section 7 3 Closing the Inverter page 39 7 Connect the Electronic Solar Switch L N A NOTICE The Electronic Solar Switch can be damaged if it is inserted incorrectly Do not tighten the screw inside the handle Insert the handle of the Electronic Solar Switch securely in the socket on the underside of the enclosure Check the handle of the Electronic Solar Switch is securely connected 8 Remove the securing screw Installation Guide SB33_38 IEN 100540 57 Decommissioning SMA Solar Technology AG 9 Remove the inverter upward from the wall mounting bracket M The inverter is dismantl
3. PV Inverter SUNNY BOY 3300 3800 Installation Guide SB33_38 IEN100540 IME SB3800 Version 4 0 EN SMA Solar Technology AG Table of Contents Table of Contents 1 1 1 2 1 3 1 4 2 2 1 2 2 2 3 29 2 3 2 3 3 1 Sez 4 4 1 4 2 4 3 5 5 1 5 2 SA 5 2 2 d Sd 5 3 2 Notes on this Manual L bt 6 Area of validity gati ea bn wale ph Recta dea 6 Targ OGU aanas s ro atelier 6 Additional Information 4 vcqdn deus yeirntaeds b 4b te ben owes 6 SV MOO Ws sets aeree seta 7 Salesi lane a 8 Appropriate Usage sccseiacecriunes dr La n 8 Salem neruos esere sri EE aea PEPES 10 Explanation of Symbols 0000 cece cee 11 Symbalson ine lnyone inerce E ee aa 1 abolito Allis aironi 11 Unpdaclindgrisssca siae ee aa 13 Packing likraris rari otua a Ea rea 13 Identifying the Inverter 14 Insfallalioni arena ana 15 OGICly erase LALA 15 Selecting the Mounting Location 15 Mounting the Inverter with Wall Mounting Bracket 17 Electrical Connection ttt 20 So NRE TTT FRE TT RI TOSTI COTTI TTT OST 20 Overview of the Connection Area 20 FPREerorVieWs iu tot til oe eae nel 20 INISFOFVIeW sane 21 Connection to the Public Grid AC L 00040 22 Conditions for the AC Connection LL 22 COSE I E 24 Installation Guide SB33_38 IEN 100540 3 Table of Contents SMA Solar Technology AG 5 4 5 5 dd 5 5 2 5 5 3 5 5 4 5 6 5 7
4. Wireless Technology Optional Electronic Solar Switch Electrical service life in the event of a short circuit A minimum of 50 switching operations with a nominal current of 30 A oo V 200VDC V 400 VDC Sunny Boy 3300 V we V 1000 2000 3000 3300 ae W Peak efficiency 95 2 European efficiency 94 4 Installation Guide SB33_38 IEN 100540 61 Technical Data SMA Solar Technology AG 11 2 Sunny Boy 3800 DC Input PV start voltage adjustable Nonberof MPP aces I I ESE N N O Internal consumption during operation io l The maximum open circuit voltage which can occur at a cell temperature of 10 C may not exceed the maximum input voltage AC Output Harmonic distortion of output current at lt 3 AC Typ voltage lt 2 AC power gt 0 5 AC nominal power Power factor at nominal AC power eote Overvalage cotegory T_T MO 62 S B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Technical Data Mechanical Data Width x height x depth 450 mm x 352 mm x 236 mm Climatic Conditions Extended temperature range FRI BOO Extended humidity range 0 100 Extended air pressure range 79 5 kPa 106 kPa 25 C 70 C Operation temperature range S295 Cap TOO Maximum operating altitude above mean sea level according to DIN EN 50178 1998 04 installation type C class 4K4H according to DIN
5. IK 6 DC pig connectors 3x postive 3 xnegaive M 1 fosermemai IN fi Documentsst SOS o Supplement wih he factory setings ofthe wener Installation Guide SB33_38 IEN 100540 13 Unpacking SMA Solar Technology AG 3 2 Identifying the Inverter You can identify the inverter by the type label The type label is on the right side of the enclosure The serial number Serial No and the type Type Model of the product as well as device specific characteristics are specified on the type label 14 B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Installation A Installation 4 1 Safety DANGER Danger to life due to fire or explosion Despite careful construction electrical devices can cause fires Do not mount the inverter on flammable construction materials e Do not install the inverter in areas where highly flammable materials are stored Do not install inverters in areas with a risk of explosion CAUTION Danger of burn injuries due to hot enclosure parts e Mount the inverter in such a way that it cannot be touched inadvertently during operation CAUTION Risk of injury due to the heavy weight of the inverter e Take the inverter s weight of approx 38 kg into account for mounting 4 2 Selecting the Mounting Location Consider the following points when selecting where to install e The installation method and location must be suitable for the inverter s weight and dimensions see secti
6. 11 11 1 11 2 12 13 Dismantling the Inverter vids dv eoowyaes eee tess ia 56 Packing the Inverter a5 edidts Creatas ene bd Shares 58 Sioringihe lnveriern ssssparirzer innate se sete ELS DAE 58 Disposing of the Inverter 58 Technical Data 59 SUNNY BOY S000 rina la 59 Sny BOV S800 55 FI bu Aha 62 PCCOSSOMICS eeraa bb ed ri eee ae aaa 65 CONTAC aeara tah ea Bales 66 Installation Guide SB33_38 IEN 100540 5 Notes on this Manual SMA Solar Technology AG 1 Notes on this Manual 1 1 Area of validity This manual describes the assembly installation commissioning and maintenance of the following SMA inverters e Sunny Boy 3300 SB 3300 from firmware version GRX33_2 94 2 94 e Sunny Boy 3800 SB 3800 from firmware version GRX38_2 94 2 94 The firmware version will be indicated in the display once you have commissioned the inverter Store this manual where it can be accessed at all times 1 2 Target Group This manual is for qualified personnel The tasks described in this manual may be performed by qualified personnel only 1 3 Additional Information You will find further information on special topics such as designing a line circuit breaker or the description of the operating parameters in the download area at www SMA de en Refer to the user manual for detailed information on operating the inverter 6 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Notes on this Manual 1 4 Symbols Used The follo
7. Electronic Solar Switch securely in the socket on the underside of the enclosure Check the handle of the Electronic Solar Switch is securely connected 6 Switch on the line circuit breaker 7 Check whether the inverter s display and LED display indicate normal operating mode see section 6 Commissioning page 36 MI The inverter is closed and in operation AO B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Maintenance and Cleaning 8 Maintenance and Cleaning Check for proper inverter operation at regular intervals Impurities such as dust or airborne blossoms can cause heat concentration that can lead to yield losses Also check the inverter and the cables for visible external damage Undertake repairs if necessary 8 1 Checking Heat Dissipation You only need to check the heat dissipation of the inverter if during a visual inspection you notice a marked build up in the fan grill or the inverter is increasingly observed to be in derating mode Whether the inverter switches to derating mode depends on the ambient temperature and cooling efficiency 8 1 1 Cleaning the Fan If the fan grill is only covered in loose dust it can be cleaned with a vacuum cleaner If you do not achieve satisfactory results with a vacuum cleaner dismantle the fans for cleaning Proceed as follows 1 Disconnect the inverter from both the DC and AC connections as described in section 7 2 Open
8. elements as a load disconnection unit A screw type fuse element e g D system Diazed or DO system Neozed is not a load disconnection device and thus may not be used as a load disconnection unit A screw type fuse element is only used as cable protection When disconnecting under load using a screw type fuse element the inverter can be damaged e Use only a load disconnecting switch or a line circuit breaker as a load disconnecting unit Installation Guide SB33_38 IEN100540 23 Electrical Connection SMA Solar Technology AG 5 3 2 Connecting to the Public Grid AC Overview AC connection socket Description Protective cap for socket element Socket element Threaded sleeve with sealing ring for cable diameters of 10 mm to 14 mm Sealing ring for cable diameters of 6 mm to 10 mm Clamping nut Procedure 1 Check the grid voltage and compare with Vac nom on the type label The exact operating range of the inverter is specified in the operating parameters The corresponding document is available in the download area at www SMA de en in the category Technical Description of the respective inverter 2 Disconnect the line circuit breaker and secure it to prevent it from being reactivated If necessary exchange the sealing ring of the threaded sleeve with the sealing ring provided Pull the sealing ring out of the threaded sleeve Insert the smaller sealing ring 4 Thread the clamping nut E
9. off and that it cannot be reactivated NOTICE Excessive voltages can destroy the measuring device e Only use measuring devices with a DC input voltage range up to at least 600 V 1 Disconnect the line circuit breaker and secure it to prevent it from being reactivated 2 Pull the Electronic Solar Switch downward slightly toward the wall 3 Check the connection cables of the PV modules for correct polarity and that the maximum input voltage of the inverter is not exceeded With an ambient temperature over 10 C the open circuit voltage of the PV modules should not exceed 90 of the maximum input voltage of the inverter Otherwise check the system design and the PV module connection At lower ambient temperatures the maximum input voltage of the inverter can otherwise be exceeded NOTICE Exceeding the maximum input voltage can destroy the inverter If the voltage of the PV modules exceeds the maximum input voltage of the inverter it can be destroyed by the overvoltage All warranty claims become void Do not connect strings with an open circuit voltage greater than the maximum input voltage of the inverter e Check the system design 4 Check the strings for ground faults as described in section 9 3 1 Checking the PV Generator for a Ground Fault page 52 32 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection
10. the PV generator as described in section 5 5 Connection of the PV Generator DC page 28 If the message occurs again disconnect the inverter again and contact the SMA Serviceline see section 13 Contact page 66 ACVtgRPro The 10 minute average grid voltage is no longer within the permissible range This can be caused by either of the following e The grid voltage at the connection point is too high e The grid impedance at the connection point is too high The inverter disconnects to assure compliance with the voltage quality of the grid Corrective measures Check the grid voltage at the point of connection of the inverter e If due to the local grid conditions the grid voltage increases to 253 V or more ask the utility operator whether the voltage at the feed in point can be adjusted or whether it would agree to an alteration of the limiting value ACVtgRPro for voltage quality monitoring If the grid voltage is continually within the acceptable range and this error is still displayed contact the SMA Serviceline Bfr Srr nternal measurement comparison fault or hardware defect Corrective measures e Contact the SMA Serviceline if this disturbance occurs frequently Installation Guide SB33_38 IEN 100540 47 Troubleshooting SMA Solar Technology AG Message Description and corrective measure Derating The Derating operating mode is a normal operating mode that may occur occasionally and can have s
11. 0 SMA Solar Technology AG All rights reserved Installation Guide SB33_38 IEN 100540 67 SMA Solar Technology AG
12. 7 Setting the Grid Parameters and Country Parameters page 35 To change the grid relevant parameters you need a personal access code the so called SMA grid guard code The application form for the personal access code can be found in the download area at www SMA de en in the category Data Sheet of the respective inverter Installation Guide SB33_38 IEN 100540 9 Safety SMA Solar Technology AG 2 2 Safety Instructions DANGER Danger to life due to high voltages in the inverter All work on the inverter may be carried out by qualified personnel only The appliance is not to be used by children or persons with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction Children should be supervised to ensure that they do not play with the appliance CAUTION Danger of burn injuries due to hot enclosure parts e Do not touch the inverter s enclosure during operation NOTICE Dust and water in the inverter can damage it Once the Electronic Solar Switch has been pulled out the inverter only provides protection rating IP21 It is then no longer protected against dust and water In order to keep the protection rating IP65 during temporary decommissioning proceed as follows e Release and remove all DC plug connectors e Open all DC plug connectors and remove the cables e Close all DC inputs with the corresponding DC plug
13. EN 50178 1998 04 transport type E class 2K3 Features Cooling concept OptiCool Fan connection Designed for safe disconnection In accordance with DIN EN 50178 1998 04 General Data 65 Protection elass FO l O Noise emission typical lt 42 dB A according to DIN EN 60529 Protective Equipment All pole DC disconnection unit Electronic Solar Switch DC plug system SUNCLIX DC overvoltage protection Thermally monitored varistors Personal protection R gt 1 MQ Insulation monitoring AC short circuit protection Current control All pole AC disconnection unit Automatic disconnection device SMA Grid Guard 2 1 Pole Confusion Protection Short circuit diode Installation Guide SB33_38 IEN 100540 63 Technical Data SMA Solar Technology AG Communication Interfaces RSAB5 gavanicaly isole Bluetooth Optional Electronic Solar Switch Electrical service life in the event of a short circuit A minimum of 50 switching operations with a nominal current of 30 A V 200VDC V 400V DC Sunny Boy 3800 Vve V 1000 2000 3000 3800 Le W Peak efficiency ua 95 6 European efficiency xa 94 7 64 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Accessories 12 Accessories You will find the corresponding accessories and replacement parts for your product In the following overview If required you can order these from
14. Il 57 2 7 1 7 2 1 0 8 1 8 1 1 8 1 2 8 1 3 8 2 9 1 9 2 9 3 9 3 1 DI 10 Setting the Display Language 27 Connection of the PV Generator DC LL 28 Conditions tor the DC CONNEGHOM 303 28 Assembling the DC Plug Connectors i 29 Opening the DC Plug Connector LL 31 Connecting the PV Generator DC LL 32 COMMURICCHON sega 435030 ina 34 Setting the Grid Parameters and Country Parameters 35 Setting the Installation Country LL 35 Setting Off Grid Operation n nannaa aaan 35 Commissioningisssr air a a a 36 Opening and Closing ssesesesesesesecesee 37 SNO ERE SCORRE PE A TORO OTO 37 Opening the Inverter a gacecutensniatettcrseth enesens 37 Closing the Inverter n n ananuna nnana aeaea 39 Maintenance and Cleaning Al Checking Heat Dissipation LL 41 CleGnino ewE Nii nies sree teenad ane toe oe y hed cae ees 41 ERI ini 42 acini 44 Checking the Electronic Solar Switch for Wear 45 Troubleshooting 4 i004 saws sins du penis re 46 Bink CG OCG Sioa cect cia o eE ETE a 6 oa Gna AeA 46 Error MESSAGES 47 Red LED is Glowing Continuously 00 0005 52 Checking the PV Generator for a Ground Fault 52 Checking the Function of the Varistors 00 00 cee e eee eee eee 53 Decommissioningi eis pote eo REE Re A 56 SB33_38 IEN100540 Installation Guide SMA Solar Technology AG Table of Contents 10 1 10 2 10 3 10 4
15. MA Serviceline if this disturbance occurs Contact the SMA Serviceline if this disturbance occurs frequently __ The Derating operating condition is a normal operating condition that Derating operating condition is a normal operating condition that occurs prior to grid monitoring If offset is displayed as an error then there is a disturbance in the data logging Corrective measures e Contact the SMA Serviceline if this disturbance occurs frequently The electrical insulation between the PV system and ground is faulty The resistance between the DC plus and or DC minus connection and ground is outside the defined limit range Corrective measures e Check the insulation of the system e Check the system for ground faults as described in section 9 3 1 Checking the PV Generator for a Ground Fault page 52 ROM The inverter s firmware i The inverter s firmware is faulty The inverter s firmware is faulty Corrective measures Contact the SMA Serviceline if this disturbance occurs __ Contact the SMA Serviceline if this disturbance occurs frequently Installation Guide SB33_38 IEN 100540 49 Troubleshooting SMA Solar Technology AG Message Description and corrective measure Shutdown ember inverter Temporary inverter fault O Contact the SMA Serviceline Trafo TempF Temperatures in the Temperatures in the transformer have exceeded the acceptable limit The acceptable limit The inverter stops feedi
16. NOTICE Excessive currents can damage the inverter e The maximum current per DC connector plug may not exceed 16 A DANGER Risk of lethal electric shock e Do not connect strings with ground faults e First rectify the ground fault in the respective string 5 Check the DC plug connectors for correct polarity and connect them To release the DC plug connectors see section 7 2 Opening the Inverter page 37 6 To create the sealing on the inverter all the DC inputs have to be closed as follows Insert the sealing plugs provided into the DC plug connectors that are not required Do not insert the sealing plugs into the DC inputs on the inverter Insert the DC plug connectors with sealing plugs into the corresponding DC inputs on the inverter Installation Guide SB33_38 IEN100540 33 Electrical Connection SMA Solar Technology AG 7 Check the Electronic Solar Switch for wear as described in section 8 2 Checking the Electronic Solar Switch for Wear page 45 and attach it g firmly N A NOTICE The Electronic Solar Switch can be damaged if it is inserted incorrectly The Electric Solar Switch can be damaged by high voltages if it has not been attached properly Do not tighten the screw inside the handle Insert the handle of the Electronic Solar Switch securely in the socket on t
17. SMA Solar Technology AG or your dealer Brief description SMA order number Air grills Air grill set right and left as spare part 45 7202 Electronic Solar Switch ESS handle replacement part ESS HANDLE 02 Replacement varistors Set of thermally monitored varistors 2 including SB TV4 Insertion tool for Installation tool for varistors SB TVWZ replacing the varistors Positive grounding set Upgrade kit for the positive connection to ground ESHV P NR e pa meres NE Negative grounding set Upgrade kit for the negative connection to ESHV N NR Pe ere cite pe RS485 upgrade kit RS485 interface 485PB NR Radio upgrade kit Radio Piggy Back for upgrading a Sunny Boy for BEAMPB NR communication with Sunny Beam including antenna coaxial cable and PG threaded joint metal Bluetooth upgrade kit Bluetooth interface BTPBINV NR SUNCLIX DC plug Field plug for conductor cross sections of SUNCLIX FC6 SET connectors 2 5 mm 6 mm Installation Guide SB33_38 IEN 100540 65 Contact SMA Solar Technology AG 13 Contact If you have technical problems concerning our products please contact the SMA Serviceline We require the following information in order to provide you with the necessary assistance e Inverter type e Inverter serial number e Type and number of connected PV modules e Blink code or display message of the inverter Optional equipment e g communication devices SMA Solar Technology AG Sonnenallee 1 34266 Nies
18. ac Srr faults are still being displayed contact the SMA Serviceline 50 S B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Troubleshooting Message Description and corrective measure VpvMax Watchdog Watchdog Srr Zac Bfr Zac Srr Installation Guide Overvoltage at DC input The inverter may be damaged Corrective measures Disconnect the inverter from the grid immediately Turn off the line circuit breaker Remove the Electronic Solar Switch Disconnect all the DC plug connectors Check DC voltage Ifthe DC voltage is above the maximum input voltage check the system design or contact the installer of the PV generator Ifthe DC voltage is under the maximum input voltage reconnect the inverter to the PV generator as described in section 5 5 Connection of the PV Generator DC page 28 If the message occurs again disconnect the inverter again and contact the SMA Serviceline see section 13 Contact page 66 Internal program run fault Corrective measures e Contact the SMA Serviceline if this disturbance occurs frequently The grid impedance is no longer within the permissible range Bfr or Srr is an internal message of no relevance for the user For safety reasons the inverter disconnects itself from the grid The impedance is calculated from both the grid impedance and the impedance of the AC cable of the inverter Corrective measures e Check the grid impedance and g
19. ages e Procure replacement varistors as soon as possible and replace the defective ones immediately For systems with a high risk of overvoltage do not operate inverters with faulty varistors or no varistors at all 54 B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Troubleshooting 3 Insert an insertion tool into the openings of the terminal contacts 1 MM The terminal clamps loosen If you do not receive an insertion tool for operating the terminal clamps with your replacement varistors contact SMA Solar Technology AG As an alternative the individual terminal contacts can be operated using a 3 5 mm wide screwdriver Remove the varistor 2 5 Insert new varistor 3 The pole with the small loop crimp must be fitted to terminal A when remounting 3 6 Close the inverter as described in section 7 3 Closing the Inverter page 39 MM The check and replacement of the varistors is completed Installation Guide SB33_38 IEN 100540 55 Decommissioning SMA Solar Technology AG 10 Decommissioning 10 1 Dismantling the Inverter DANGER Danger to life due to high voltages in the inverter e Disconnect the line circuit breaker and secure it to prevent it from being reactivated 1 Remove the Electronic Solar Switch 2 Release and remove all DC plug connectors see section 7 2 Opening the Inverter page 37
20. aning 8 2 Checking the Electronic Solar Switch for Wear Check the Electronic Solar Switch for wear before plugging it in MI The metal tongues inside the connector are 1 Insert the handle of the Electronic Solar not damaged or discolored Switch securely in the socket on the underside of the enclosure Commission the inverter as described in section 6 Commissioning page 36 MI The metal tongues inside the connector The Electronic Solar Switch can no longer safely have a brown discoloration or are burned disconnect the DC side through Replace the Electronic Solar Switch handle before attaching it again order number see section 12 Accessories page 65 Commission the inverter as described in section 6 Commissioning page 36 Installation Guide SB33_38 IEN 100540 45 Troubleshooting SMA Solar Technology AG 9 Troubleshooting If the inverter displays blink codes or error messages other than those described in the following section contact the SMA Serviceline You will find descriptions of the display messages during operation status messages and measuring channels in the enclosed user manual Do not try to carry out repairs other than those described here Instead use the SMA Solar Technology AG 24 hour replacement service the inverter will be ready for dispatch within 24 hours and sent to a forwarding agency and repair service 9 1 Blink Codes Green Red Yellow Status SSS Glows continuou
21. aps into place 3 Ensure the cable is correctly in place M Ifthe conductor is visible in the hollow Proceed to step 4 cavity of the clamp the cable is in the correct position Installation Guide SB33_38 IEN 100540 29 Electrical Connection SMA Solar Technology AG Action M Ifthe conductor is not visible in the hollow Loosen the clamping bracket with the help cavity of the clamp the cable is not in the of a screwdriver correct position e Remove the cable and start again from step 1 4 MI The DC plug connectors are now assembled and can be connected to the inverter as described in section 5 5 Connection of the PV Generator DC page 28 30 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection 5 5 3 Opening the DC Plug Connector l amp To release the plug connector slot a screw driver Carefully pull apart the DC plug connector gt ZS N J Loosen the clamping bracket with the help of a Remove cable Screw the threaded joint off into the side catch mechanism and lever out Ven screwdriver The cable is removed from the DC plug connector Installation Guide SB33_38 IEN 100540 31 Electrical Connection SMA Solar Technology AG 5 5 4 Connecting the PV Generator DC DANGER Danger to life due to high voltages in the inverter e Before connecting the PV generator ensure that the line circuit breaker is switched
22. ated on the underside of the enclosure Use the contact washers provided with the toothing against the enclosure Tighten the screw with a torque of approximately 5 Nm 18 S B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Installation 7 Check to ensure the inverter is firmly secured The wall mounting bracket is designed so that the inverter tilts backward slightly on a perfectly vertical wall 8 Attach the air grills provided to the inverter To help you identify the sides links left or rechts right is printed on the inside of the air grills M The inverter is now mounted Installation Guide SB33_38 IEN 100540 19 Electrical Connection SMA Solar Technology AG 5 Electrical Connection 5 1 Safety NOTICE Electrostatic discharge can damage the inverter Internal components of the inverter can be irreparably damaged by static discharge e Before you touch a component inside the inverter ground yourself by touching a grounded object 5 2 Overview of the Connection Area 5 2 1 Exterior View The following figure shows the assignment of the individual connection areas on the bottom of the inverter Description Enclosure openings for communication with dummy plugs DC plug connectors for connecting the PV strings Socket f
23. connectors and the sealing plugs provided e Firmly attach the Electronic Solar Switch again Grounding the PV generator Comply with the local requirements for grounding the modules and the PV generator SMA Solar Technology AG recommends connecting the generator frame and other electricity conducting surfaces so that there is continuous conduction and to ground them in order to achieve maximum protection of the system and personnel 10 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Safety 2 3 Explanation of Symbols This section gives an explanation of all the symbols shown on the inverter and on the type label 2 3 1 Symbols on the Inverter Symbol Operation Display Shows the operating status of the inverter Ground fault or varistor defective Read section 9 3 Red LED is Glowing Continuously page 52 DC circuit breaker Electronic Solar Switch ESS e If the Electronic Solar Switch connects then the DC circuit is completed To interrupt the DC circuit and disconnect the inverter securely under load you have to first pull out the Electronic Solar Switch and then remove all DC plug connectors as described in section 7 2 Opening the Inverter page 37 Beware of dangerous electrical voltage The inverter operates at high voltages All work on the inverter may be carried out by qualified personnel only Beware of hot surface The inverter can become hot during operatio
24. ed 10 2 Packing the Inverter If possible always pack the inverter in its original packaging If it is no longer available you can also use an equivalent box The box must be capable of being closed completely and made to support both the weight and the size of the inverter 10 3 Storing the Inverter Store the inverter in a dry place where ambient temperatures are always between 25 C and 60 C 10 4 Disposing of the Inverter Dispose of the inverter at the end of its service life in accordance with the disposal regulations for electronic waste which apply at the installation location at that time Alternatively send it back to SMA Solar Technology AG with shipping paid by sender and labeled ZUR ENTSORGUNG for disposal see section 13 Contact page 66 58 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Technical Data 11 Technical Data 11 1 Sunny Boy 3300 DC Input PV start voltage adjustable 250 V oome F O O O O o o Maximum number of parallel strings Pe e e ii Internal consumption during operation _ E 6 ee The maximum open circuit voltage which can occur at a cell temperature of 10 C may not exceed the maximum input voltage AC Output Maximum permissible fuse protection Harmonic distortion of output current at lt 3 AC Typ voltage lt 2 AC power gt 0 5 AC nominal power Nominal AC voltage pen 220 V 230 V 240 V AC voltage range 180 V 260 V AC gr
25. er of the PV modules must have approved the modules for use with this Sunny Boy device You must also ensure that all measures recommended by the module manufacturer for long term maintenance of the module properties are taken see also Technical Information Module Technology in the download area of www SMA de en Do not use the Sunny Boy for purposes other than those described here Alternative uses modifications to the Sunny Boy or the installation of components not expressly recommended or sold by SMA Solar Technology AG void the warranty claims and operation permission 8 B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Safety Certified countries The Sunny Boy 3300 3800 with according configuration fulfill the requirements specified in the following standards and directives dated 02 2010 e VDE 0126 1 1 02 2006 e RD 1663 2000 2000 e G83 1 09 2003 e CER 06 190 10 2006 2750 11 2004 e PPC 06 2006 e EN 50438 12 2007 e C10 C11 08 2003 e DK 5940 Ed 2 2 02 2006 only applies for SB 3300 IT 3800 IT e AS4777 2005 e IEC utility meeting 216 SMA Solar Technology AG can preset special grid parameters for other countries installation locations according to customer requests after evaluation by SMA Solar Technology AG You can make later modifications yourself by changing software parameters with respective communication products e g Sunny Data Control or Sunny Explorer See section 5
26. everal causes Once the inverter enters the Derating mode it will display the Derating warning until the next total shutdown of the device at the end of the day Corrective measures e Check heat dissipation as described in section 8 1 Checking Heat Dissipation page 41 dZac Bfr Sudden changes in grid impedance exceed the permissible range aS Bfr or Srr are internal messages of no relevance for the user For safety reasons the inverter disconnects itself from the grid Corrective measures Check the grid impedance and observe how often major deviations occur e If repeated frequency variations occur and this is causing dZac Bfr or dZac Srr errors ask the utility operator if it would agree to modify the operating parameter dZac Max Discuss changing the operating parameter with the SMA Serviceline Transition disturbance during reading or writing of EEPROM data The data is not relevant for safe operation e The disturbance has no effect on the performance of the inverter sian of data has disabled important functions of the inverter Contact the SMA Serviceline EeRestore One of the duplicate data sets in the EEPROM is defective and has been reconstructed without loss of data e The error message only serves to inform you and has no effect on the performance of the inverter Fac Bfr The grid frequency is no longer within the permissible range Bfr or Srr Fac Srr is an internal message of no re
27. g connectors for connecting the PV strings Electronic Solar Switch ESS socket P Enclosure opening with sealing plugs for communication kK Naites _ i fimo A O I Installation Guide SB33_38 IEN 100540 21 Electrical Connection SMA Solar Technology AG 5 3 Connection to the Public Grid AC 5 3 1 Conditions for the AC Connection Connection requirements of the utility operator Always observe the connection requirements of your utility operator Cable Sizing For optimum operation of the inverter the grid impedance of the AC cable must not exceed 1 Ohm This is necessary amongst other things for the correct operation of the inverter The conductor cross section should be dimensioned in a way that output losses do not exceed 1 at nominal power Use Sunny Design www SMA de en SunnyDesign for this The maximum cable lengths are shown in the following table Do not exceed the maximum cable length Conductor cross section Maximum cable length SB 3300 SB 3800 The conductor cross sectional area required in individual cases depends on the following factors e Ambient temperature e Routing method e UV resistance e Conduction losses e Valid installation guidelines of the respective country of the installation location Cable Requirements C i l NN 22 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection Load Disconnection Uni
28. h downward slightly toward the wall 3 Using a current probe ensure that there is no current to all DC cables MI If current is detected check the installation Installation Guide SB33_38 IEN100540 37 Opening and Closing SMA Solar Technology AG 4 Release all DC plug connectors with the help of a screwdriver Insert a screwdriver into one of the side slits 1 Lever the screwdriver upward 2 and pull out the plug connector 3 DANGER Danger to life due to unsafe disconnection from the PV generator A secure separation from the PV generator is only guaranteed after pulling off the Electronic Solar Switch and all DC connectors e Remove all DC plug connectors to completely disconnect the PV generator from the inverter 2 5 Ensure that there is no voltage to the DC plug connectors on the inverter I If there is a voltage present check the installation 6 Pull out the AC plug 7 Check whether all LEDs and the display have gone out 38 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Opening and Closing DANGER Danger to life due to high voltages in the inverter The capacitors in the inverter require 15 minutes to discharge e Wait 15 minutes before opening the inverter 8 Loosen the screws of the enclosure
29. he underside of the enclosure until you hear an audible click Check the handle of the Electronic Solar Switch is securely connected MI The PV generator is now connected 5 6 Communication The inverter is equipped with a slot for communication interfaces in order to communicate with special data acquisition devices e g Sunny WebBox or a PC with corresponding software e g Sunny Data Control or Sunny Explorer See the respective communication interface manual for a detailed wiring diagram and an installation description for the interface 34 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection 5 7 Setting the Grid Parameters and Country Parameters il Changing grid relevant parameters and country parameters To change the grid relevant parameters you need a personal access code the so called SMA grid guard code The application form for the personal access code can be found in the download area at www SMA de en in the category Data Sheet of the respective inverter Ensure that you discuss the changes to these parameters with your utility operator A detailed description of the operating parameter for the inverter is available in the download area at www SMA de en in the category Technical Description of the respective inverter 5 7 1 Setting the Installation Country Using the Default parameter you can set the installation country and or the grid connection standard valid for the coun
30. id frequency 50 Hz 60 Hz Tolerance a AC gf Feauery e we O o Sese e a e Internal consumption in night mode Installation Guide SB33_38 IEN 100540 59 Technical Data SMA Solar Technology AG Mechanical Data Width x height x depth 450 mm x 352 mm x 236 mm Climatic Conditions Extended temperature range FRI BOO Extended humidity range 0 100 Extended air pressure range 79 5 kPa 106 kPa 25 C 70 C Operation temperature range S295 Cap TOO Maximum operating altitude above mean sea level according to DIN EN 50178 1998 04 installation type C class 4K4H according to DIN EN 50178 1998 04 transport type E class 2K3 Features Cooling concept OptiCool Fan connection Designed for safe disconnection In accordance with DIN EN 50178 1998 04 General Data Pes Protection class Noise emission typical lt AO dB A according to DIN EN 60529 Protective Equipment All pole DC disconnection unit Electronic Solar Switch DC plug system SUNCLIX DC overvoltage protection Thermally monitored varistors Personal protection R gt 1 MQ Insulation monitoring AC short circuit protection Current control All pole AC disconnection unit Automatic disconnection device SMA Grid Guard 2 1 Pole confusion protection Short circuit diode 60 S B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Technical Data Communication Interfaces RSAB5 gavanicaly isole Bluetooth
31. ing the Inverter page 37 2 Wait for the fan to stop rotating Cleaning the Fan Grills 3 Remove the fan grill Press the two latches on the right edge of the fan grill to the right using a screwdriver and loosen it from the bracket Carefully remove the fan grill 4 Clean the fan grill with a soft brush a paint brush a cloth or pressurized air Cleaning the Fan 5 Push the two upper plastic clips backward and the lower plastic clip forward 6 Remove the fan by pulling it slowly and carefully downward 7 Unlock and unplug the fan plug inside the inverter The fan cables are long enough that you can lift the fan far enough out to disconnect the internal plug connector in the inverter Installation Guide SB33_38 IEN 100540 41 Maintenance and Cleaning SMA Solar Technology AG 8 Remove the fan 9 Clean the fan with a soft brush a paint brush or a damp cloth NOTICE Damage to the fan through the use of pressurized air e Under no circumstances should you use pressurized air to clean the fan This can damage the fan 10 After cleaning assemble everything in reverse order 11 Check the functioning of the fans as described in the following section 8 1 2 Checking the Fans You can check that the fans are working in 2 ways e Set the Fan Test parameter to 1 in the installer mode using Sunny Data Control Sunny E
32. l inverters In addition make sure there is enough ventilation to ensure sufficient cooling of the inverters S B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Installation 4 3 Mounting the Inverter with Wall Mounting Bracket CAUTION Risk of injury due to the heavy weight of the inverter e Remember that the inverter weighs approx 38 kg 1 Use the wall mounting bracket as a drilling template and mark the positions of the drill holes 217 mm 217 mm 92 mm 125 mm DI 125 mm i 92 mm 103 8 mm Mounting material When mounting the bracket use fastening material suitable for the material 2 Fill in holes that are not required in the wall mounting bracket using the sealing plugs Insert the sealing plugs into the wall mounting bracket from the outside the side that will later be placed against the wall Installation Guide SB33_38 IEN 100540 17 Installation SMA Solar Technology AG 3 Attach the wall mounting bracket to the wall using appropriate screws and washers 4 Mount the inverter with the upper fastening plates on the wall mounting bracket so that both plates on the upper edge of the bracket pass through the cutouts on the inverter 5 Visual inspection The inverter is only correctly mounted when both rear panel mounting plates slightly protrude through the cutouts 6 Secure the inverter in position by screwing the supplied M6 contact screw loc
33. levance for the user For safety reasons FacFast the inverter disconnects itself from the grid Corrective measures e Ifthe grid frequency is within the tolerance range yet Fac Bfr Fac Srr or FacFast faults are still being displayed contact the SMA Serviceline 48 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Troubleshooting the AC grid is larger than specified e Check the system design and grid conditions Corrective measures e Contact the SMA Serviceline if this problem occurs frequently or several times in succession LISI measurement comparison Internal measurement comparison fault or hardware defect or hardware defect a Contact the SMA Serviceline if this disturbance occurs Contact the SMA Serviceline if this disturbance occurs frequently MSD Vac ome measurement comparison Internal measurement comparison fault or hardware defect or hardware defect OR Contact the SMA Serviceline if this disturbance occurs Contact the SMA Serviceline if this disturbance occurs frequently __ NUW Timeout mn measurement comparison Internal measurement comparison fault or hardware defect or hardware defect ET Contact the SMA Serviceline if this disturbance occurs _Contactthe SMA Serviceline if this disturbance occurs frequently __ MSD Timeout Lane measurement comparison Internal measurement comparison fault or hardware defect or hardware defect ea Contact the S
34. lid 9 Carefully remove the lid forward MI The inverter is open and there is no voltage present 7 3 Closing the Inverter 1 Secure the lid with the 4 screws and the lock washers with the toothing facing toward the lid The screws must be tightened with approximately 6 Nm torque to ensure the sealing of the enclosure and the grounding of the lid DANGER Danger to life due to live lid The grounding of the lid is ensured by the toothed lock washers e Fasten the lock washers for all screws with the toothing facing toward the lid 2 Check the DC plug connectors for correct polarity and connect them To release the DC plug connectors see section 7 2 Opening the Inverter page 37 QI de Installation Guide SB33_38 IEN100540 39 Opening and Closing SMA Solar Technology AG 3 Close all the DC inputs that are not needed as described in section 5 5 4 Connecting the PV Generator DC page 32 in order to create the sealing on the inverter 4 Connect the AC plug 5 Check the Electronic Solar Switch for wear as described in section 8 2 Checking the Electronic Solar Switch for Wear page 45 and attach it firmly NOTICE The Electronic Solar Switch can be damaged if it is inserted incorrectly Do not tighten the screw inside the handle Insert the handle of the
35. n Avoid contact during operation Observe all documentation accompanying the inverter Installation Guide SB33_38 IEN 100540 11 Safety SMA Solar Technology AG symbol The inverter must not be disposed of with the household waste For further information on disposal see section 10 4 Disposing of the Inverter page 58 CE mark The inverter complies with the requirements of the applicable EC guidelines The inverter has a transformer Protection rating IP65 The inverter is protected against penetration by dust particles and water jets from any angle RAL quality mark for solar products The inverter complies with the requirements of the German Institute for Quality Assurance and Labeling 12 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Unpacking 3 Unpacking 3 1 Packing List Check the delivery for completeness and for visible external damage such as cracks in the enclosure or in the display Contact your dealer if anything is damaged or missing A WY S SD SD K Objet Number Descripfion OOS A Sueny Boy TT E Wal movning bracket fear pen SS p terore Solar Swich Est O SSSSSS E 5 sealing plug tor wall movning bracket sealing e h Jumper for communication fantet AC coupling socket socket unit protective cap for socket unit threaded sleeve sealing ring clamping nut 6 Sealing plugs for DC plug connectors
36. n from underneath and then blows it back out on the upper left side Listen for any unusual noise that could indicate incorrect installation or that the fan is faulty 6 Remove the jumper Open and close the inverter as described in section 7 Opening and Closing page 37 M You have finished checking the fan Installation Guide SB33_38 IEN 100540 43 Maintenance and Cleaning SMA Solar Technology AG 8 1 3 Cleaning the Air Grills There are fan gills on either side of the inverter The inverter sucks air in from underneath through the fan and blows it out again on the upper left side via the air grills For optimal heat dissipation of the inverter you only have to clean the left air grill Procedure 1 Remove the left air grill Insert your finger in the space between the air grill and the upper part of the enclosure and remove the air grill to the side 2 Clean the air grill with a soft brush a paint brush or pressurized air 3 Re attach the air grill to the inverter To help you identify the sides the air grills are marked with links left or rechts right on the inside M The air grills are cleaned NOTICE Risk of damage to the inverter if insects enter it e The air grills must not be removed permanently because otherwise the device is not protected against the entrance of insects 44 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Maintenance and Cle
37. ng the grid until the temperature reverts to within the admissible range Corrective measures e If this problem recurs check the heat dissipation of the inverter as described in section 8 1 Checking Heat Dissipation page 41 Temperatures in the transformer have exceeded the acceptable limit The inverter stops feeding the grid until the temperature reverts to within the admissible range The Trafo Temp W warning is displayed until final shutdown at the end of the day Corrective measures e Check the heat dissipation of the inverter as described in section 8 1 Checking Heat Dissipation page 41 Vac Bfr The grid voltage is no longer within the permissible range Bfr or Srr is VacSrr an internal message of no relevance for the user This code can be caused by any of the following conditions e Grid disconnected line circuit breaker fuse e AC cable is broken or e AC cable is high resistance For safety reasons the inverter disconnects itself from the grid Corrective measures e Check the grid current and the grid connection on the inverter e If the grid voltage lies outside the acceptable range because of local grid conditions ask the utility provider if the voltage can be adjusted at the feed in point or if it would agree to changes in the values of the monitored operational limits operating parameters Vac Min and Vac Max If the grid frequency is within the tolerable range yet Vac Bfr or V
38. nnectors and sealing plugs The enclosure lid is securely screwed in place The Electronic Solar Switch ESS is securely plugged The line circuit breaker is laid out correctly Switch on the line circuit breaker MI Green LED glows commissioning has been successful or MI Green LED flashes when there is insufficient radiation network connection conditions have not yet been yet reached Wait for sufficient radiation or MI Red or yellow LED is glowing or flashing there has been an error Proceed to step 3 Red LED Ground fault or varistor defective Yellow LED Read section 9 Troubleshooting page 46 and if necessary eliminate the disturbance SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Opening and Closing 7 Opening and Closing 7 1 Safety DANGER Risk of lethal electric shock Pay attention to the following points before opening the inverter e Ensure that there are no hazardous voltages present on the AC side e Ensure that there are no hazardous currents or voltages present on the DC side NOTICE Static discharges can damage the inverter Internal components of the inverter can be irreparably damaged by electrostatic discharge e Ground yourself before touching a component 7 2 Opening the Inverter 1 Disconnect the line circuit breaker and secure it to prevent it from being reactivated 2 Pull the Electronic Solar Switc
39. oduct under incorrect safety or protection conditions e Altering the product or supplied software without authority e The product malfunctions due to operating attached or neighboring devices beyond statutory limit values e In case of unforeseen calamity or force majeure The use of supplied software produced by SMA Solar Technology AG is subject to the following conditions e SMA Solar Technology AG rejects any liability for direct or indirect damages arising from the use of software developed by SMA Solar Technology AG This also applies to the provision or non provision of support activities e Supplied software not developed by SMA Solar Technology AG is subject to the respective licensing and liability agreements of the manufacturer SMA Factory Warranty The current guarantee conditions come enclosed with your device These are also available online at www SMA de and can be downloaded or are available on paper from the usual sales channels if required Trademarks All trademarks are recognized even if these are not marked separately Missing designations do not mean that a product or brand is not a registered trademark The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by SMA Solar Technology is under license SMA Solar Technology AG Sonnenallee 1 34266 Niestetal Germany Tel 49 561 9522 0 Fax 49 561 9522 100 www SMA de E Mail info SMA de 2004 to 201
40. on 11 Technical Data page 59 e Mount on a solid surface e It must be possible to access the installation location freely and safely at all times without the need for additional tools such as scaffolding or lifting platforms Service actions are otherwise limited max 45 aa S e Vertical installation or tilted backward by max 45 e The connection area must point downward Installation Guide SB33_38 IEN100540 15 Installation SMA Solar Technology AG Never install the device with a forward tilt Do not install horizontally Install at eye level in order to allow the operating status to be read at all times The inverter must be easy to remove from the mounting location at any time The ambient temperature should be below 40 C to ensure optimal operation Do not expose the inverter to direct sunlight to avoid a power reduction due to excessive heating In living areas do not mount the unit on plasterboard walls or similar in order to avoid audible vibrations The inverter can make noises when in use which may be perceived as a nuisance in a living area Observe the minimum clearances to walls other inverters or objects as shown in the diagram in order to guarantee sufficient heat dissipation and to have enough space for removing the Electronic Solar Switch Multiple inverters installed in areas with high ambient temperatures If necessary increase the clearances between the individua
41. or the connection of the Electronic Solar Switch ESS DC load disconnection unit AC socket for grid connection 20 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection 5 2 2 Interior View The following illustration shows the various components and connection areas of the open inverter A B K 7 3 REEI fi HO 0000 0000 HIE is O O 0000u0000 UUUDUOUUUUUTOO 0 Q m CUD o o c oo000 o o c ooo00 Q 6 E HHE Oasa 20 I C 0000 BBA I E Z K FS GE i IN n Mm e Description Slot for communication Display Jumper slot for fan test Operating status LEDs Tab for grounding the cable shield with line conducted communication AC socket for grid connection DC plu
42. over the AC cable E 24 S B33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection 5 12 13 Thread the threaded sleeve C with sealing ring over the AC cable Bend the AC cable The bend radius must be at least four times the cable diameter Shorten the cable Shorten phase L and neutral conductor N 4 to 5 mm Insert the PE protective conductor green yellow into the screw terminal with the earth sign on the socket element and tighten the screw The PE protective conductor must be longer than the connection wires of N and L Insert the neutral conductor N blue in the screw terminal N on the socket element and tighten the screw Insert phase L brown or black into the screw terminal L on the socket element and tighten the screw Make sure the wires are securely connected Push the threaded sleeve C onto the socket element B until it audibly snaps into place Installation Guide SB33_38 IEN 100540 25 Electrical Connection SMA Solar Technology AG 14 Screw the clamping nut E tightly onto the threaded sleeve C The clamping nut serves to seal and relieve strain MM The AC connection socket has been screwed together 15 Close the socket element with the protective cap provided if the inverter has not yet been connected 16 Insert the AC connection socket into the AC socket on the inverter Remove the protective ca
43. p 99 MI The AC cable is now connected to the inverter DANGER Danger to life due to high voltages in the inverter beforehand as required A Do not switch on the line circuit breaker until the PV generator has been connected and the inverter is securely closed 26 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection 5 4 Setting the Display Language You can set the language of the display using the switches on the underside of the display assemblies inside the inverter Procedure 1 Open the inverter as described in section 7 2 Opening the Inverter page 37 2 Set the switches for the required language as shown below Switch S2 Switch S1 German B pP Engish O French JA 3 Close the inverter as described in section 7 2 Closing Sunny Boy page 33 M The display language is now set Installation Guide SB33_38 IEN 100540 27 Electrical Connection SMA Solar Technology AG 5 5 Connection of the PV Generator DC 5 5 1 Conditions for the DC Connection Use of Adaptors Adaptors branch connectors are not to be visible or freely accessible in the immediate surrounding of the inverter e The DC current flow may not be interrupted via adaptors e Disconnect the inverter as described in section 7 2 Opening the Inve
44. rid connection on the inverter e Use an AC cable with an adequate cross sectional area low impedance as described in section 5 3 Connection to the Public Grid AC page 22 If required check and re tighten the screws on the AC terminals If this fault recurs please contact the SMA Serviceline SB33_38 IEN 100540 51 Troubleshooting SMA Solar Technology AG 9 3 Red LED is Glowing Continuously If the red LED of the status display is continuously on during operation there is either a ground fault in the PV generator or at least one of the varistors for the overvoltage protection is defective 9 3 1 Checking the PV Generator for a Ground Fault 1 Open the inverter as described in section 7 2 Opening the Inverter page 37 NOTICE Excessive voltages can destroy the measuring device e Only use measuring devices with a DC input voltage range up to at least 600 V 2 Measure the voltages between the positive pole of the strings and the ground potential 3 Measure the voltages between the minus pole of the strings and the ground potential MA voltage is measurable for at least one of If voltage is found there is a ground fault in the the two measurements corresponding string e Correct the ground fault and reconnect the PV generator to the inverter as described in section 5 5 Connection of the PV Generator DC page 28 M No voltage can be measured It is likely that one of the
45. rter page 37 e Requirements for the PV modules of the connected strings Same type Same number Identical alignment Identical tilt e The connection cables of the PV modules must be equipped with plug connectors You will find the necessary DC plug connectors for the DC connection in the delivery e The following limiting values at the DC input of the inverter may not be exceeded Maximum input voltage 500 V DC 20 A DC DANGER Risk of lethal electric shock or fire The maximum possible input current per string is limited by the plug connectors used If the plug connectors are overloaded an electric arc may occur and there is a risk of fire e Ensure that the input current for each string does not exceed the maximum flow current of the plug connectors used 28 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Electrical Connection 5 5 2 Assembling the DC Plug Connectors The connection cables of the PV modules must be equipped with the DC plug connectors provided for connecting the inverter To assemble the DC plug connectors proceed as follows Make sure the plug connectors have the correct polarity The DC plug connectors have the symbols and Cable Requirements e Use a PV1 F cable 2 5 6mm 5 8mm 127 mm Procedure 1 Insert the stripped cable into the plug connector as far as it will go 2 Press the clamping bracket down until it audibly sn
46. sly Is not glowing Is not glowing OK feeding operation Glows continuously Is not glowing Ground fault or varistor defective Glows continuously OK initialization Flashes quickly Is not glowing Is not glowing OK stop 3 x per second Glows continuously Is not glowing Ground fault or varistor defective Flashes slowly Is not glowing Is not glowing OK waiting grid 1 x per second monitoring Briefly goes out Is not glowing Is not glowing OK derating Approx 1x per second Glows continuously Is not glowing Ground fault or varistor defective Is not glowing Is not glowing Is not glowing OK night shutdown Glows continuously Is not glowing Ground fault or varistor defective Glows flashes Ground fault or varistor defective and disturbance 46 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Troubleshooting 9 2 Error Messages When a disturbance occurs the inverter generates a message that depends on the operating mode and the disturbance detected IPV Overvoltage Overvoltage at DC input Corrective measures Disconnect the inverter from the grid immediately Turn off the line circuit breaker Remove the Electronic Solar Switch Disconnect all the DC plug connectors Check DC voltage Ifthe DC voltage is above the maximum input voltage check the system design or contact the installer of the PV generator Ifthe DC voltage is under the maximum input voltage reconnect the inverter to
47. t You must install a separate line circuit breaker for each inverter in order to ensure that the inverter can be securely disconnected under load The maximal permissible fuse protection is located in section 11 Technical Data page 59 Detailed information and examples for the rating of a line circuit breaker can be found in the Technical Information Line Circuit Breaker in the SMA Solar Technology AG download area at www SMA de en DANGER Danger to life due to fire When more than one inverter is connected to the same line circuit breaker the protective function of the line circuit breaker is no longer guaranteed It can result in a cable fire or the destruction of the inverter e Never connect several inverters to a single line circuit breaker e Comply with the maximum permissible fuse protection of the inverter when selecting the circuit breaker DANGER Danger to life due to fire When a generator inverter and a consumer are connected to the same line circuit breaker the protective function of the line circuit breaker is no longer guaranteed The current from the inverter and the grid can accumulate to overcurrent which is not detected by the line circuit breaker inverter and the line circuit breaker without protection e Never connect loads between the P C Always protect loads separately NOTICE Damage to the inverter by using screw type fuse
48. tetal Germany www SMA de SMA Serviceline Inverters 49 561 9522 1499 Communication 49 561 9522 2499 Fax 49 561 9522 4699 E Mail Serviceline SMA de 66 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Legal Restrictions The information contained in this document is the property of SMA Solar Technology AG Publishing its content either partially or in full requires the written permission of SMA Solar Technology AG Any internal company copying of the document for the purposes of evaluating the product or its correct implementation is allowed and does not require permission Exclusion of liability The general terms and conditions of delivery of SMA Solar Technology AG shall apply The content of these documents is continually checked and amended where necessary However discrepancies cannot be excluded No guarantee is made for the completeness of these documents The latest version is available online at www SMA de or from the usual sales channels Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the following e Damages during transportation e Improper or inappropriate use of the product e Operating the product in an unintended environment e Operating the product whilst ignoring relevant statutory safety regulations in the deployment location e Ignoring safety warnings and instructions contained in all documents relevant to the product e Operating the pr
49. thermally monitored varistors is defective e Check the function of the varistors as described in section 9 3 2 Checking the Function of the Varistors page 53 DANGER Danger to life due to live PV generator Do not touch the frame of the PV generator e Wait until no voltage can be measured e Do not connect strings with ground faults to the inverter 52 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Troubleshooting The approximate position of the ground fault can be determined from the ratio of the measured voltages between plus against ground potential and minus against ground potential Example V 200 V V 300 V aN ET SO F 100 V 100 V 100 V 100 V 100 V The ground fault is between the second and third module in this case MI The ground fault check is finished 9 3 2 Checking the Function of the Varistors Varistors are wear parts Their functional efficiency diminishes with age or following repeated responses as a result of overvoltages It is therefore possible that one of the thermally monitored varistors has lost its protective function Position of varistors You can determine the position of the varistors with the help of the illustration below Observe the following allocation of the terminals e Terminal A outer terminal varistor connection with crimp e Terminal B middle terminal e Terminal C outer terminal varistor connection without crimp
50. try via a communication device e g Sunny WebBox or a PC with appropriate software e g Sunny Data Control or Sunny Explorer This however is only required if the inverter was originally ordered for another country You can see the standard to which the inverter was set upon delivery on the type label and the enclosed data sheet with the factory settings 5 7 2 Setting Off Grid Operation To operate the inverter in a Sunny Island system you must set the inverter via the Default parameter to off grid OFF Grid operation You have several possibilities to set the inverter to off grid operation e Setting via Sunny WebBox or e Setting via Sunny Data Control or Sunny Explorer DANGER A Danger to life due to high voltages if there is an outage of the public grid If you set the inverter to off grid operation it does not fulfill any country specific standards and regulations Therefore if there is an outage of the public grid there is a danger of back feed e Never operate the inverter directly on the public grid when set to off grid operation Installation Guide SB33_38 IEN 100540 35 Commissioning SMA Solar Technology AG 6 Commissioning l 3 36 Check the following requirements before commissioning Ensure the inverter is firmly secured Correct connection of the AC cable grid Full connection of the DC cables PV strings DC inputs that are not needed are closed with the corresponding DC plug co
51. wing types of safety instructions and general information appear in this document as described below f DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury A N i CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE NOTICE indicates a situation that can result in property damage if not avoided Information Information provides tips that are valuable for the optimal installation and operation of your product T This symbol indicates an outcome Installation Guide SB33_38 IEN 100540 7 Safety SMA Solar Technology AG 2 Safety 2 1 Appropriate Usage The Sunny Boy is a PV inverter which converts the DC current of the PV generator to AC current and feeds it into the public grid Principle of a PV system with this Sunny Boy Sunny Boy PV Modules Distribution Public grid The Sunny Boy may only be operated with PV generators modules and cabling of protection class Il Do not connect any sources of energy other than PV modules to the Sunny Boy When designing the PV system ensure that the values comply with the permitted operating range of all components at all times The free design program Sunny Design www SMA de en SunnyDesign will assist you The manufactur
52. xplorer or Sunny WebBox or e Plug the jumper provided into the system control board Setting Parameters 1 Request the installer password from the SMA Serviceline contact see page 66 Set the Fan Test parameter to 1 in the installer mode Check the air flow of the fan The inverter sucks air in from underneath and then blows it back out on the upper left side Listen for any unusual noise that could indicate incorrect installation or that the fan is faulty 4 After checking the fan set the Fan Test parameter back to O M You have finished checking the fan 42 SB33_38 IEN 100540 Installation Guide SMA Solar Technology AG Maintenance and Cleaning Plugging the Jumper The inverter recognizes the jumper only after the system has been restarted i e all LEDs must have gone out before a restart 1 Open the inverter as described in section 7 2 Opening the Inverter page 37 2 Plug the jumper provided into the slot on the system control board as shown below TN nNnNZZ MWMWODWVUWDODWYLU UH Ir CT EEEE Illo BLE 00000000000000 lo 000000 lo 0 00000 000000 000000 IO Q Q S gt Q Q Q JS 3 Close the inverter as described in section 7 3 Closing the Inverter page 39 Restart the inverter 5 Check the air flow of the fan The inverter sucks air i

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