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SUNNY BOY 2500/3000 - Installation Manual

1. Language Switch 2 Switch S1 German B B English B A French A B Spanish A A The following switch settings apply for type SB 25 Language Switch 2 Switch S1 Italian B A English A A A AN n 00 IT 3000 IT inverters S2 S1 B_A B Close the inverter as described in section 7 3 Closing the Inverter page 45 The display language is set B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Electrical Connection 5 4 PV Array Connection DC 5 4 1 Conditions for the DC Connection A Use of adaptors I Adaptors branch connectors must not be visible or freely accessible in the immediate surroundings of the inverter e The DC circuit must not be interrupted by adaptors Observe the procedure for disconnecting the inverter as described in section 7 2 Opening the Inverter page 42 Requirements for the PV modules of the connected strings Same type Same number Identical alignment Identical tilt The connecting cables of the PV modules must be equipped with plug connectors You will find the necessary DC connectors for DC connection in the delivery e The following limit values at the DC input of the inverter must not be exceeded Inverter Maximum input voltage Maximum input current SB 2500 600 V DC 12 0 A DC SB 2500 IT SB 3000 600 V DC 12 0 A DC SB 3000 IT DANGER Risk of lethal elect
2. 62 SB25_30 IA IEN1 11040 Installation Manual SMA Solar Technology AG Technical Data Electronic Solar Switch Electrical service life in the event of a short circuit a minimum of 50 switching operations with a nominal current of 35 A Maximum switching current 35A Maximum switching voltage 800 V Maximum PV power 12 kw Degree of protection when plugged IP65 Degree of protection when unplugged 1P21 Torque Enclosure lid screws 6 0 Nm Additional grounding screw 6 0 Nm Cylinder head screw for attaching the enclosure 6 0 Nm to the wall mounting bracket SUNCLIX lock nut 2 0 Nm RS485 communication connection 1 5 Nm Grid Forms IT grid Suitable TN C grid Suitable TN S grid Suitable TN C S grid Suitable TT grid Suitable Split Phase Suitable Installation Manual SB25_30 IA IEN 111040 63 Technical Data SMA Solar Technology AG Efficiency Sunny Boy 2500 987 967 S944 c 8 92 in 90 224VDC 93 88 deri V 300VDC o 224 480 Portati Vw 480 V DC Visor LV 864 0 0 0 2 0 4 0 6 0 8 10 Output power Rated power Maximum efficiency Nmax 94 1 European weighted efficiency ney 93 2 Efficiency profile Efficiency Minimum MPP Rated input voltage Maximum MPP Standardized output voltage 300 V voltage power 224V 480 V 5 84 0 83 2 79 5 10
3. Description and corrective measure Overvoltage at DC input Overvoltage can destroy the inverter Corrective measures Disconnect the inverter from the grid immediately 1 Turn off the miniature circuitbreaker 2 Remove the Electronic Solar Switch 3 Disconnect all the DC connectors 4 Check the DC voltage Ifthe DC voltage is above the maximum input voltage check the plant design or contact the PV array installer Ifthe DC voltage is under the maximum input voltage reconnect the PV array to the inverter as described in section 5 4 PV Array Connection DC page 27 If the message occurs again disconnect the inverter again and contact the SMA Serviceline see section 13 Contact page 71 ACVtgRPro The 10 minute average grid voltage is no longer within the permissible range This can have the following causes 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 power quality of the grid Corrective measures Check the grid voltage at the connection point of the inverter If due to the local grid conditions the grid voltage is 253 V or more ask the distribution grid operator whether the voltage at the feed in point can be adjusted or whether they would agree to an alteration of the limit value ACVigRPro parameter for power quality monitoring e Ifthe grid voltage is
4. Corrective measures Immediately disconnect the inverter from the grid 1 Turn off the miniature circuitbreaker 2 Remove the Electronic Solar Switch 3 Disconnect all the DC connectors 4 Check the DC voltage Ifthe DC voltage is above the maximum input voltage check the plant design or contact the PV array installer Ifthe DC voltage is under the maximum input voltage reconnect the PV array to the inverter as described in section 5 4 PV Array Connection DC page 27 If the message occurs again disconnect the inverter again and contact the SMA Serviceline see section 13 Contact page 71 Watchdog Watchdog Srr Internal program run disturbance Corrective measures e If this disturbance occurs frequently contact the SMA Serviceline 9 3 Red LED is Glowing Continuously If the red status display LED lights up continuously during operation there is a ground fault in the PV array at least one varistor for overvoltage protection is defective or there is an insulation fault Procedure 1 Check for ground faults in the PV array as described in section 9 3 1 Checking the PV Array for a Ground Fault page 54 2 If the red LED continues to glow check the varistors as described in section 9 3 2 Checking the Function of the Varistors page 56 Installation Manual SB25_30 IA IEN1 11040 53 Failure Search SMA Solar Technology AG 9 3 1 Checking the PV Array for a Ground Fault
5. 1 Disconnect the inverter from both the DC and AC connections as described in section 7 2 Opening the Inverter page 42 DANGER A Risk of lethal electric shock Only touch the cables of the PV array on their insulation Do not connect strings with ground faults to the inverter NOTICE Excessive voltages can destroy the measuring device Only use measuring devices with a DC input voltage range up to at least 1 000 V 2 Measure the voltages between the plus pole of each string and the ground potential PE al 3 Measure the voltages between the minus pole of each string and the ground potential PE 4 Measure the voltages between the plus pole and the minus pole of each string MI A ground fault exists if the measured voltages are stable and the sum of the voltages from the plus pole to the ground potential and from the minus pole to the ground potential of a string are almost the same as the voltage between the plus and minus poles 54 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Failure Search Result Measure M You have found a ground fault The installer of the PV array must remedy the ground fault in the affected string You can determine the location of the ground fault as described below Do not reconnect the faulty string Commission the inverter as described in section 6 1 Commissioning the Inverter page 36 M You have found no
6. PV Inverter SUNNY BOY 2500 3000 Installation Manual SB25_301AIEN111040 IMEN SB25_30 Version 4 0 Cn SMA Solar Technology AG Table of Contents Table of Contents 1 1 1 1 2 1 3 1 4 2 2 1 2 2 2 3 2 3 1 2 3 2 3 1 3 2 4 1 4 2 4 3 5 1 5 1 1 5 1 2 5 2 5 2 1 5 2 2 5 2 3 Information on this Manual o ooooo o 6 Valassina lion 6 TatgerGroup eee e Leelee eee 6 Additional Information LL 6 Symbols Used setesi pifi iu 7 Saltville aa 8 Appropriate Usage sirazanianizaparani ad 8 Safety nsir cons tnt ra 9 Explanation of Symbols siriani fai 10 Symbols on the Inverteri ccr aria oe DI 10 Symbols on th Typ ldbel scr sritim eners tun rioni a aa ai 11 Unpacking s ia aaa 12 Scope of Delivery ilaele 12 Identifying the Inverter 13 MOUNTING sesenta 2 ene WE eees 14 Safai Aare O DET TRE DI an awe eee 14 Selecting the Mounting Location 14 Mounting the Inverter with the Wall Mounting Bracket 16 Electrical Connection o ooooooooommoo 18 Overview of the Connection Area 18 Exterior VIEW Loi h E Ait Cab hah bball ha ate 18 Interon Vi WAR E A eh ie a are ee i 19 Connection to the Power Distribution Grid AC 20 Conditions for the AC Connection 20 Connecting the Inverter to the Power Distribution Grid AC 22 Connecting Additional Grounding 0 0 c cece eee eee eee 25 Installation Manual SB2
7. 1 Open the inverter as described in section 7 2 Opening the Inverter page 42 2 Using a multimeter and with both varistors installed ME determine whether there is a conductive connection between terminals B and C Result M There is a conducting connection There is probably a different fault in the inverter Measure Contact the SMA Serviceline see section 13 Contact page 71 56 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Failure Search Result M There is no conducting Measure 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 both varistors The varistors are specially manufactured for use in the inverter and are not commercially available They must be ordered directly from SMA Solar Technology AG see section 12 Accessories page 70 e To replace the varistors proceed to step 3 NOTICE Destruction of the inverter due to overvoltage If varistors are missing the inverter is no longer protected against overvoltages e Replacement varistors should be obtained as soon as possible p p Do not operate the inverter without varistors in plants with a high risk of overvoltages 3 Insert an insertion tool into the
8. 10 1 10 2 10 3 10 4 11 11 1 11 2 12 13 Decommissioning sail 58 Disassembling the Inverter sec ees are pe oe ened rie 58 Packing A tebe eer erect aeee 59 Storing the Mvenera sutura ele ada 59 Disposing of the Inverter o onanan anana 59 Technical Data ovio ir a si 60 Sunny Boy 2300 i 1h a 60 S nny Boy SOOO ARAS AAA 65 Accessories i oh 6 Fhe A AO 70 Contact oserei E A E wea AAA RARO 71 Installation Manual SB25_30 IA IEN1 11040 5 Information on this Manual SMA Solar Technology AG 1 Information on this Manual 1 1 Validity This manual describes the assembly installation commissioning maintenance and failure search procedures for the following SMA inverters e Sunny Boy 2500 SB 2500 SB 2500 IT e Sunny Boy 3000 SB 3000 SB 3000 IT Keep this manual in a convenient place for future reference 1 2 Target Group This manual is for electrically skilled persons The tasks described in this manual may be performed by electrically skilled persons only 1 3 Additional Information You will find further information on special topics such as designing a miniature circuit breaker or the description of the operating parameters in the download area at www SMA de en Refer to the user manual provided for detailed information on operating the inverter 6 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Information on this Manual 1 4 Symbols Used The following types of safety instructions
9. 90 3 89 8 87 3 20 93 4 93 0 91 4 25 93 9 93 6 92 2 30 94 1 93 9 92 7 50 94 1 94 1 93 3 75 94 0 93 8 93 0 100 93 3 93 2 92 4 64 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG 11 2 Sunny Boy 3000 Technical Data DC Input Maximum DC power at cos p 1 3 200 W Maximum input voltage 600 V MPP voltage range 268 V 480 V Rated input voltage 350 V Minimum input voltage 268 V Start input voltage 330 V Maximum input current 12A Maximum input current per string 12A Number of independent MPP inputs 1 Strings per MPP input 3 The maximum open circuit voltage which can occur at a cell temperature of 10 C must not exceed the maximum input voltage AC Output Rated output power at 230 V 50 Hz 2 750 W Maximum apparent AC power 3 000 VA Rated grid voltage 230 V Nominal AC voltage 220 V 230 V 240 V AC voltage range 160 V 265 V AC nominal current at 220 V 12 5 A AC nominal current at 230 V 12 0 A AC nominal current at 240 V 11 5A Maximum output current 15 0 A Total harmonic distortion of output current at lt 3 AC THD voltage lt 2 AC power gt 0 5 AC rated power Rated grid frequency 50 Hz AC power frequency 50 Hz 60 Hz Operating range at AC grid frequency 50 Hz 45 5 Hz 54 5 Hz Operating range at AC grid frequency 60 Hz 55 5 Hz 64 5
10. Measure 1 Securely attach the Electronic Solar Switch handle 2 Commission the inverter as described in section 6 Commissioning page 36 Installation Manual B25_30 IA IEN111040 47 Maintenance and Cleaning SMA Solar Technology AG Result MI The metal tongues in the Electronic Solar Switch have a brown discoloration or are burned through A or MI The plastic in the Electronic Solar Switch shows thermal deformation B Measure The Electronic Solar Switch can no longer reliably disconnect the DC supply 1 Replace the Electronic Solar Switch handle before attaching it again for the order number see section 12 Accessories page 70 2 Re commission the inverter as described in section 6 Commissioning page 36 48 SB25_30 IA IEN1 11040 Installation Manual SMA Solar Technology AG Failure Search 9 Failure Search If the inverter displays other blink codes or fault messages than those described below contact the SMA Serviceline You will also find a description of display messages during operation status messages and measuring channels in the user manual provided Do not perform any repairs that are not described here and take advantage of the 24 hour replacement service inverter ready for shipping and handed over to a freightforwarding company within 24 hours and the SMA Solar Technology AG repair service instead 9 1 Blink Codes Green is glowi
11. you can also use an equivalent carton 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 71 Installation Manual SB25_30 IA IEN1 11040 59 Technical Data 11 Technical Data 11 1 Sunny Boy 2500 SMA Solar Technology AG DC Input Maximum DC power at cos p 1 2 700 W Maximum input voltage 600 V MPP voltage range 224 V 480 V Rated input voltage 300 V Minimum input voltage 224 V Start input voltage 300 V Maximum input current 12A Maximum input current per string 12A Number of independent MPP inputs 1 Strings per MPP input 3 The maximum open circuit voltage which can occur at a cell temperature of 10 C must not exceed the maximum input voltage AC Output Rated output power at 230 V 50 Hz 2 300 W Maximum apparent AC power 2 500 VA Rated grid voltage 230V Nominal
12. AC voltage 220 V 230 V 240 V AC voltage range 160 V 265 V AC nominal current at 220 V 10 5 A AC nominal current at 230 V 10 0 A AC nominal current at 240 V 9 6 A Maximum output current 125A Total harmonic distortion of output current at lt 3 AC THD voltage lt 2 AC power gt 0 5 AC rated power Rated grid frequency 50 Hz AC power frequency 50 Hz 60 Hz Operating range at AC grid frequency 50 Hz 45 5 Hz 54 5 Hz Operating range at AC grid frequency 60 Hz 55 5 Hz 64 5 Hz Power factor at rated power Feed phases 1 Connection phases 1 60 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Technical Data Overvoltage category according to IEC 60664 1 Maximum cable length at cable diameter of 9m 1 5 mm Maximum cable length at cable diameter of 15 5 m 2 5 mm Protection devices DC reverse polarity protection Short circuit diode Input side disconnection device Electronic Solar Switch DC overvoltage protection thermally monitored varistors AC short circuit current capability Current control Grid monitoring SMA Grid Guard 2 1 Maximum permissible fuse protection 16 0 A Ground fault monitoring Insulation monitoring Ri gt 1 MQ Galvanic isolation Available General data Width x height x depth with 440 mm x 339 mm x 214 mm Electronic Solar Switch Weight 28 kg Length x width x height
13. Communication The inverter is equipped with a socket 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 Refer to the communication interface manual for a detailed wiring diagram and a mounting description 5 6 Setting the Grid and Country Parameters Changing grid relevant and country parameters e l To change grid relevant parameters you need a personal access code the so called SMA Grid Guard Code The application form for the personal access code is available in the download area at www SMA de en in the Certificate category of the respective inverter Ensure that you discuss the changes to these parameters with your distribution grid operator A detailed description of the operation parameters for the inverter is available in the download area at www SMA de en in the category Technical Description of the respective inverter 5 6 1 Setting the Installation Country Using the Default parameter you can set the installation country and or the grid connection standard valid for the country via a communication device e g Sunny WebBox or a PC with corresponding 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 default standard to which the inverter was set on the type label
14. a screwdriver with a width of 3 5 mm Remove cable and start again from step 1 4 Push the bolted connection toward the thread and fasten to a torque of 2 Nm sp MI The DC connectors are now assembled and can be connected to the inverters as described in section 5 4 4 Connecting the PV Array DC page 31 Installation Manual B25_30 IA IEN111040 29 Electrical Connection SMA Solar Technology AG 5 4 3 Opening the DC Connector 1 Unscrew the threaded joint 2 To release the plug connector slot a screw driver into the side catch mechanism and lever out For this purpose use a screwdriver with a width of 3 5 mm 3 Carefully pull the DC connector apart 4 Declamp the clamping clip For this purpose use a screwdriver with a width of 3 5 mm 5 Remove the cable M The cable is now removed from the DC connector 30 SB25_30 1A IEN 111040 Installation Manual SMA Solar Technology AG Electrical Connection 5 4 4 Connecting the PV Array DC wy DANGER Danger to life due to high voltages in the inverter Before connecting the PV array ensure that the miniature circuitbreaker is switched off i NOTICE N Excessive voltages can destroy the measuring device a Only use measuring devices with a DC input voltage range up to at least 1 000 V 1 Disconnect the miniature circuitbreaker and secure against re connection 2 Pull the Electronic Solar Switch
15. and general information are used in this manual f DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury A WARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury A CAUTION CAUTION indicates a hazardous situation which if not avoided could result in minor or moderate injury A N NOTICE E NOTICE indicates a situation that can result in property damage if not avoided e Information Information provides tips that are valuable for the optimal installation and operation of your product tr M This symbol indicates the result of an action Installation Manual B25_30 IA IEN111040 T 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 array to AC current and feeds it into the power distribution grid Principle of a PV plant with this Sunny Boy Sunny Boy PV modules Distribution Public grid 7 The Sunny Boy may only be operated with PV arrays 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 plant 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 manufac
16. ground fault It is likely that one of the thermally monitored varistors is defective Check the varistors as described in section 9 3 2 Checking the Function of the Varistors page 56 Location of the ground fault The approximate position of the ground fault can be determined from the ratio of the measured voltages between the plus pole against ground potential and the minus pole against ground potential PE Example V 200 V V 300 V rg E I ee ee 100 V 100 Y F 100 V 100 V 100 V In this case the ground fault is between the second and third PV modules M The ground fault check is finished Installation Manual SB25_30 IA IEN 111040 55 Failure Search SMA Solar Technology AG 9 3 2 Checking the Function of the Varistors Varistors are wear parts Their functional efficiency diminishes with age or repeated strain as a result of overvoltage It is therefore possible that one of the thermally monitored varistors has lost its protective function and thus the red LED is lit r 3 i Position of varistors You can determine the position of the varistors using the illustration below Observe the following assignment of the terminals Terminal A outer terminal varistor connection with loop crimp Terminal B middle terminal Terminal C outer terminal varistor connection without loop crimp Check the function of the varistors as described below
17. here is that the country configuration of the inverter has been set to Italy IT DK5940 or trimmed Proceed as follows for checking the disconnection times 1 Connect the PV array to the inverter The inverter can only initialize if the PV array produces enough power It is therefore not possible to test the disconnection times at night 2 Connect the inverter on the AC side For this you have to create the AC connection AC plug or direct connection and or switch on the miniature circuit breaker of the grid cable fuse or automatic circuit breaker 3 The inverter is now in the initialization phase i e all 3 LEDs are glowing at the same time Start the self test immediately after all 3 LEDS have gone out by tapping on the display of the inverter 4 The question of whether you would like to start the test sequence appears in the display Tap on the Avvio Autotest display again within 30 seconds to confirm the question Once you have started the test sequence the inverter checks the disconnection times for overvoltage undervoltage maximum frequency and minimum frequency one after the other During the tests the inverter shows the values in the display which are described in section 6 2 2 Completion of the Self Test page 37 6 2 2 Completion of the Self Test Note the values which are displayed during the selftest These values must be entered into a test re port The test results of the individual tests are displayed
18. nor current is present on the DC side J NOTICE o Electrostatic 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 miniature circuit breaker and secure against re connection 2 Pull the Electronic Solar Switch downward slightly towards the wall 3 Using a current probe ensure that no current is present at all DC cables If current is present check the installation 42 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Opening and Closing 4 Unlock all DC connectors For this purpose use a screwdriver with a width of 3 5 mm Insert a screwdriver into one of the side slits 1 Disconnect DC plug connectors 2 MI All DC connectors are disconnected from the inverter The inverter is completely disconnected from the PV array j 5 Pull out the AC plug gt 6 Check whether all LEDs and the display have gone out 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 Installation Manual B25_30 IA IEN111040 43 Opening and Closing SMA Solar Technology AG 7 Ensure that no voltage is pres
19. of packaging 532 mm x 392 mm x 318 mm Transport weight 33 1 kg Climatic category according to IEC 60721 2 1 AK4H Operation temperature range 25 2 2760 C Maximum permissible value for relative humidity 100 non condensing Maximum operating altitude above mean sea 2 000 m level Noise emission typical lt 33 dB A Power loss in night operation lt 0 25 W Topology LF transformer Cooling concept Convection Electronics degree of protection according to IP65 IEC 60529 Installation Manual SB25_30 IA IEN1 11040 61 Technical Data SMA Solar Technology AG Country standards as of 02 201 1 VDEO126 1 1 ASA777 C10 11 PPDS GBT19939 2005 PPC EN 50438 RD1663 RD661 G83 1 1 DK5940 EN 50438 does not apply to all country standard deviations of EN 50438 DK 5940 only applies for SB 2500 IT Climatic conditions in accordance with IEC 60721 3 4 installation type C class 4K4H Extended temperature range 25 C 60 C Extended humidity range 0 100 Extended air pressure range 79 5 kPa 106 kPa Climatic conditions in accordance with IEC 6072 1 3 4 transport type E class 2K3 Temperature range 23 7 Gas ELO 76 Features DC connection SUNCLIX DC connector AC Connection AC connector Display LC text display Bluetooth Wireless Technology Optional RS485 galvanically isolated Optional
20. screws and washers I li i e l i Sr A Ji e 5 m l a i l WR o 16 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Mounting 3 Mount the inverter with its upper fastening plates on the wall mounting bracket in such a way that it cannot slide out of the bracket sideways 4 If a second protective conductor is required in the country of installation ground the inverter and fix it securely as described in section 5 2 3 Connecting Additional Grounding page 25 5 If a second protective conductor is not required fix the inverter securely using the enclosed M6x12 screw 6 Check to ensure that the inverter is securely in place MI The inverter is now mounted to the wall Installation Manual B25_30 IA IEN111040 17 Electrical Connection SMA Solar Technology AG 5 Electrical Connection NOTICE E Electrostatic discharges can damage the inverter y Internal components of the inverter can be irreparably damaged by static discharge Ground yourself before touching a component 5 1 Overview of the Connection Area 5 1 1 Exterior View The following figure shows the assignment of the individual connection areas on the bottom of the inverter o Object Description A DC connectors for connecting the PV strings B Socket for connecting the
21. to seal the inverter all the DC inputs that are not required have to be closed as follows Insert the provided sealing plugs into the DC connectors that are not needed Do not insert the sealing plugs into the DC inputs on the inverter Pd Gg 32 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Electrical Connection Insert the DC connectors with sealing plugs into the corresponding DC inputs on the inverter 7 Check the Electronic Solar Switch for wear as described in section 8 1 Checking the Electronic Solar Switch for Wear page 47 and reattach it firmly n Su S NOTICE Manipulating the connector in the handle can damage the Electronic Solar Switch The connector within the handle must remain movable in order to ensure proper contact Tightening the screw voids all warranty claims and creates a fire risk Do not tighten the connector screw in the Electronic Solar Switch handle NOTICE The Electronic Solar Switch can be damaged if it is attached incorrectly If it is not correctly connected the Electronic Solar Switch can be damaged by high voltages e Plug the handle firmly onto the socket of the Electronic Solar Switch Check that the handle is securely in place M The PV array is now connected Installation Manual SB25_30 IA IEN 111040 33 Electrical Connection SMA Solar Technology AG 5 5
22. 3 times one after the other The respective display message is displayed for 10 seconds The self test changes the upper and lower disconnection thresholds for each protective function on a linear basis with a modification of 0 05 Hz s and 0 05 Vn s for the frequency and voltage monitor ing As soon as the actual measured value is outside the permitted range altered disconnection threshold the inverter disconnects itself from the grid In this way the inverter determines the reaction time and checks itself Installation Manual SB25_30 IA IEN 111040 37 Commissioning SMA Solar Technology AG Overvoltage Test The inverter begins with the overvoltage test During the test sequence the voltage limit applied is shown in the Autotest display of the inverter Han mami PET EL The voltage limit is reduced successively until the shut down threshold is reached and the inverter disconnects from the grid Once the inverter has disconnected from the grid the display successively shows the following values one after the other Disconnection value e Calibration value Hal Laralura 262 BEL e Reaction time Tempo imlLeruerto e Current grid voltage Tensione di rele Ual effi 38 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Commissioning Undervoltage Test After the overvoltage test the inverter performs the undervoltage test During the test sequence the current Hut calibration value of the vo
23. 40 Installation Manual SMA Solar Technology AG Technical Data Country standards as of 02 201 1 VDEO126 1 1 ASA777 C10 11 PPDS GBT19939 2005 PPC EN 50438 RD1663 RD661 G83 1 1 DK5940 EN 50438 does not apply to all country standard deviations of EN 50438 DK 5940 only applies for SB 3000 IT Climatic conditions in accordance with IEC 60721 3 4 installation type C class 4K4H Extended temperature range 25 C 60 C Extended humidity range 0 100 Extended air pressure range 79 5 kPa 106 kPa Climatic conditions in accordance with IEC 6072 1 3 4 transport type E class 2K3 Temperature range 23 7 Gas ELO 76 Features DC connection SUNCLIX DC connector AC Connection AC connector Display LC text display Bluetooth Optional RS485 galvanically isolated Optional Installation Manual SB25_30 IA IEN1 11040 67 Technical Data Electronic Solar Switch SMA Solar Technology AG Electrical service life in the event of a short circuit with a nominal current of 35 A a minimum of 50 switching operations Maximum switching current 35A Maximum switching voltage 800 V Maximum PV power 12 kw Degree of protection when plugged IP65 Degree of protection when unplugged 1P21 Torque Enclosure lid screws 6 0 Nm Additional grounding screw 6 0
24. 5_30 IA IEN 111040 3 Table of Contents SMA Solar Technology AG 5 3 5 4 5 4 1 5 4 2 5 4 3 5 4 4 5 5 5 6 5 6 1 5 6 2 6 1 6 2 6 2 1 6 2 2 7 1 7 2 7 3 8 1 9 1 9 2 9 3 9 3 1 9 3 2 Setting the Display Language nonan nannaa nnana 26 PV Array Connection DC rada 27 Conditions for the DC Connection LL 27 Assembling the DC Plug Connector LL 28 Opening the DC Connectors parata cine Meta He alee ada eed 30 Connecting the PV Array DC LL 31 COMIMUMICAHON dotte 34 Setting the Grid and Country Parameters 34 Setting the Installation Country LL 34 Setting Stand Alone Grid Operation 35 COMMISSION ls A Se eo 36 Commissioning the Inverter 0 36 Self Test in Accordance with DK 5940 Ed 2 2 Applies to Italy Only ivan ria aaa Os 37 Starting the Self Test by Tapping 37 Completion of the Self Test LL 37 Opening and Closing ooooooooomom o o 42 E 42 Opening the neta ta iii 42 Closing the Invenets don A5 Maintenance and Cleaning 47 Checking the Electronic Solar Switch for Wear 47 Failure Search aid 49 Blink COdBS a a Atte on ened riti 49 Fault Messages reads 50 Red LED is Glowing Continuously aoaaa aaaea 53 Checking the PV Array for a Ground Fault 00 eee eee eee 54 Checking the Function of the Varistors LL 56 B25_30 IAIEN111040 Installation Manual SMA Solar Technology AG Table of Contents 10
25. Electronic Solar Switch ESS DC load disconnection unit C Enclosure opening with filler plugs for communication D Socket for AC connection 18 SB25_30 IA IEN1 11040 Installation Manual SMA Solar Technology AG 5 1 2 Interior View Electrical Connection The following figure shows the various components and connection areas of the open inverter A B C F G F E Object Description A Varistors B Connection area and sockets for the optional communication via RS485 C Display D Operating status LEDs E Socket for AC connection F DC connector G Electronic Solar Switch ESS socket Installation Manual SB25_30 IA IEN1 11040 19 Electrical Connection SMA Solar Technology AG 5 2 Connection to the Power Distribution Grid AC 5 2 1 Conditions for the AC Connection Connection requirements of the distribution grid operator I Comply with the connection requirements of your distribution grid operator Cable Dimensioning Use Sunny Design version 2 0 or higher for the dimensioning of the conductor cross sectional areas see Sunny Design design program at www SMA de en Cable Requirements I TT I i Wo d
26. Hz Power factor at rated power 1 Feed phases 1 Connection phases 1 Installation Manual SB25_30 IA IEN1 11040 65 Technical Data SMA Solar Technology AG Overvoltage category according to IEC 60664 1 Maximum cable length at cable diameter of 2 5 mm 12 5 m Protection devices DC reverse polarity protection Short circuit diode Input side disconnection device Electronic Solar Switch DC overvoltage protection thermally monitored varistors AC short circuit current capability Current control Grid monitoring SMA Grid Guard 2 1 Maximum permissible fuse protection 16 0A Ground fault monitoring Insulation monitoring Ri gt 1 MQ Galvanic isolation Available General data Width x height x depth with Electronic Solar Switch 440 mm x 339 mm x 214 mm Weight 32 kg Length x width x height of packaging 532 mm x 392 mm x 318 mm Transport weight 36 6 kg Climatic category according to IEC 60721 2 1 AK4H Operation temperature range 25 C 60 C Maximum permissible value for relative humidity 100 non condensing Maximum operating altitude above mean sea 2 000 m level Noise emission typical lt 30 dB A Power loss in night operation lt 0 25 W Topology LF transformer Cooling concept Convection Electronics degree of protection according to IEC 60529 IP65 66 SB25_30 IA IEN1 110
27. N1 11040 71 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 Damages during transportation 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 product under incorrect safety or protection conditions Altering the product or supplied software without authority The product malfunctions due to operating attached or neighboring devices
28. Nm Cylinder head screw for attaching the enclosure 6 0 Nm to the wall mounting bracket SUNCLIX lock nut 2 0 Nm RS485 communication connection 1 5 Nm Grid Forms IT grid Suitable TN C grid Suitable TN S grid Suitable TN C S grid Suitable TT grid Suitable Split Phase Suitable 68 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Technical Data Efficiency Sunny Boy 3000 987 967 T 94 m paman gt A 2 das REI l e 90 i hoe Vy 268VDC 93 88 GIGI V 350VDC I 268 480 Portati Vw 480 V DC Visor LV gt li 0 0 0 2 0 4 0 6 0 8 1 0 Output power Rated power Maximum efficiency nmax 95 0 European weighted efficiency ney 93 6 Efficiency profile Efficiency Minimum MPP Rated input voltage Maximum MPP Standardized output voltage 350 V voltage power 268 V 480 V 5 86 1 83 0 78 9 10 91 7 89 8 87 0 20 94 3 93 2 91 4 25 94 8 93 8 92 3 30 95 0 94 2 92 9 50 95 0 94 6 93 7 75 94 8 94 3 93 7 100 94 2 93 8 93 3 Installation Manual SB25_30 IA IEN1 11040 69 Accessories 12 Accessories SMA Solar Technology AG You will find the corresponding accessories and replacement parts for your product in the following overview If required you can order these from SMA Solar Technology AG or your dealer Description Electronic Solar Sw
29. able range but Fac Bfr Fac Srr FacFast disturbances are still displayed contact the SMA Serviceline Imax overcurrent Overcurrent on the AC side This message is displayed if the current on the AC grid is larger than specified Corrective measures e Check the system design and grid conditions K1 Close K1 Open Fault during relay test Corrective measures Ifthis fault frequently occurs or occurs several times consecutively contact the SMA Serviceline MSD Fac MSD Vac MSD Timeout Internal measurement comparison fault or hardware defect Corrective measures If this disturbance occurs frequently contact the SMA Serviceline Offset The Offset operating state is a normal operating condition that occurs prior to grid monitoring If Offset is displayed as a fault then there is a disturbance in the data logging Corrective measures e If this disturbance occurs frequently contact the SMA Serviceline Installation Manual B25_30 IA IEN111040 51 Failure Search SMA Solar Technology AG Message Riso Description and corrective measure The electrical insulation between the PV plant 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 system insulation Check the system for ground faults as described in section 9 3 1 C
30. age 42 SB25_30 IA IEN1 11040 Installation Manual SMA Solar Technology AG Safety 2 3 2 Symbols on the Type Label Symbol Explanation Beware of dangerous electrical voltage The inverter operates at high voltages All work on the inverter may only be carried out by electrically skilled persons The inverter can become hot during operation Avoid contact during i Beware of hot surface operation Observe all documentation that accompanies the inverter The inverter must not be disposed of together with household waste For more information on disposal see section 10 4 Disposing of the Inverter page 59 IX CE mark The inverter complies with the requirements of the applicable EC guidelines A MA The inverter has a transformer O Direct current DC Alternating current AC DA A Degree of protection 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 Solar Australian mark of conformity Quen Installation Manual SB25_30 IA IEN 111040 11 Unpacking SMA Solar Technology AG 3 Unpacking 3 1 Scope of Delivery Check the delivery for completeness and for any visible external damage Contact your dealer if anything is da
31. and on the included supplementary document with the factory settings 34 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Electrical Connection 5 6 2 Setting Stand Alone Grid Operation To operate the inverter in an off grid system with Sunny Island you must set the Default parameter to stand alone grid OFF Grid operation You have several possibilities to set the inverter to stand alone grid operation Setting via Sunny WebBox or Setting via Sunny Data Control or Sunny Explorer DANGER Danger to life due to high voltages in the event of outage of the power distribution grid If you set the inverter to stand alone grid operation it does not fulfill any country specific standards and guidelines Therefore in the event of outage of the power distribution grid there is a danger of feedback Never operate the inverter directly on the power distribution grid when set to stand alone grid operation Installation Manual B25_30 IA IEN111040 35 Commissioning SMA Solar Technology AG 6 Commissioning 6 1 Commissioning the Inverter 1 Check the following requirements before commissioning The inverter is securely in place Correct connection of the AC cable grid Complete connection of all DC cables PV strings Unnecessary DC inputs are closed with the corresponding DC connectors and sealing plugs The enclosure lid is securely screwed in place The Electronic Solar Switch is securely pl
32. beyond statutory limit values 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 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 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 AG 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 2011 SMA Solar Technology AG All rights reserved Installation Manual SB25_30 IA IEN1 11040 75 SMA Solar Technology SMA Solar Technology AG www SMA de SMA America LLC www SMA A
33. claims and creates a fire risk Do not tighten the connector screw in the Electronic Solar Switch handle NOTICE o The Electronic Solar Switch can be damaged if it is attached incorrectly If it is not correctly connected the Electronic Solar Switch can be damaged by high voltages e Plug the handle firmly onto the socket of the Electronic Solar Switch Check that the handle is securely in place 7 Switch on the miniature circuit breaker 8 Check whether the display and the LEDs indicate a normal operating state see section 6 Commissioning page 36 M The inverter is now closed and in operation 46 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Maintenance and Cleaning 8 Maintenance and Cleaning Impurities such as dust or airborne pollen can cause a buildup of heat that can lead to yield losses Also check the inverters and the cables for visible external damage Undertake repairs if necessary 8 1 Checking the Electronic Solar Switch for Wear Check the Electronic Solar Switch for wear before plugging it in Depending on the shape of the Electronic Solar Switch you can estimate the wear on either the metal tongues shape A or on the plastic shape B Result MI The metal tongues in the Electronic Solar Switch are undamaged and not discolored A or MI The plastic in the Electronic Solar Switch is undamaged B
34. continually within the tolerance range and this fault message is still displayed contact the SMA Serviceline Bfr Srr Internal measurement comparison fault or hardware defect Corrective measures If this disturbance occurs frequently contact the SMA Serviceline 50 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Failure Search Message EEPROM Description and corrective measure Transition disturbance while data is being written or read from EEPROM The data is not relevant for safe operation The disturbance has no effect on the performance of the inverter EEPROM dBh EEPROM data is defective the device has switched off because the loss of data has disabled important functions of the inverter Corrective measures 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 This fault message only serves to inform you and has no effect on the performance of the inverter Fac Bfr Fac Srr FacFast The grid frequency 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 Corrective measures e Check the grid connection and contact the distribution grid operator if necessary e If the power frequency is within the toler
35. downward slightly towards the wall 3 Check the connection cables of the PV modules for correct polarity and make sure that the maximum input voltage of the inverter is not exceeded At an ambient temperature above 10 C the open circuit voltage of the PV modules must not be more than 90 of the maximum inverter input voltage Otherwise check the system design and the PV module connection If this is not done the maximum inverter input voltage can be exceeded at low ambient temperatures Installation Manual B25_30 IA IEN111040 31 Electrical Connection SMA Solar Technology AG NOTICE n 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 This will void all warranty claims Do not connect strings with an open circuit voltage greater than the maximum input voltage of the inverter Check the system design 4 Check the strings for ground faults as described in section 9 3 1 Checking the PV Array for a Ground Fault page 54 DANGER Risk of lethal electric shock Do not connect strings with ground faults e First rectify the ground fault in the respective string 9 P g 5 Check the DC connector for correct polarity and connect it To release the DC connectors see section 7 2 Opening the Inverter page 42 pa 6 In order
36. e inverter in areas with a risk of explosion CAUTION Danger of burn injuries due to hot enclosure parts Mount the inverter in such a way that the enclosure cannot be touched inadvertently CAUTION Risk of injury due to the heavy weight of the inverter Take the inverter s weight of approx 32 kg into account for mounting 4 2 Selecting the Mounting Location Consider the following requirements when selecting the installation site e The mounting method and location must be suitable for the inverter s weight and dimensions see section 11 Technical Data page 60 e Mount on a solid surface The mounting location must at all times be clear and safely accessible without the use of additional aids such as scaffolding or lifting platforms Non ulfillment of these criteria may restrict servicing ee a AS 4 gt ZZ ie E Mount vertically or tilted backwards by max 45 max 45 14 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Mounting The connection area must point downward Never mount the device with a forward tilt Never install the device with a sideways tilt Do not mount horizontally e Install at eye level in order to allow operating states to be read at all times To ensure optimal operation the ambient temperature should be below 40 C Do not expose the inverter to direct sunlight as this can cause excessive
37. ent at the DC plugs on the inverter If voltage is present check the installation 8 Remove all screws from the enclosure lid and pull the lid forward smoothly 9 Remove protective conductor PE connection from the lid by loosening the PE connection lock on the lid M The inverter is now open and free of voltage 44 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Opening and Closing 7 3 Closing the Inverter 1 Establish the protective conductor PE connection to the lid 2 Secure the enclosure lid of the inverter by evenly tightening the 4 lid screws 3 Check the DC connector for correct polarity and connect it To release the DC connectors see section 7 2 Opening the Inverter page 42 4 Close all the DC inputs that are not needed as described in section 5 4 4 Connecting the PV Array DC page 31 to seal the inverter 5 Attach the AC plug Installation Manual B25_30 IA IEN111040 45 Opening and Closing SMA Solar Technology AG 6 Check the Electronic Solar Switch for wear as described in section 8 1 Checking the Electronic Solar Switch for Wear page 47 and reattach it firmly n Ti SC a J N NOTICE 5 Manipulating the connector in the handle can damage the Electronic Solar Switch The connector within the handle must remain movable in order to ensure proper contact Tightening the screw voids all warranty
38. grid can accumulate to excessive current that is not detected by the miniature circuit breaker Never connect consumers between the inverter and the miniature circuit breaker without protection Always protect consumers separately NOTICE o Damage to the inverter by using screw type fuse 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 serves as cable protection only When disconnecting under load using a screw type fuse element the inverter can be damaged e Use only a switch disconnector or a miniature circuit breaker as a load disconnection unit Installation Manual B25_30 IA IEN111040 21 Electrical Connection SMA Solar Technology AG 5 2 2 Connecting the Inverter to the Power Distribution Grid AC Overview of the AC Connection Socket Object Description A Socket element B Threaded sleeve Cc PG13 5 sealing ring D PG13 5 fastening case E Pressure screw for PG 13 5 for a cable diameter between 9 mm 13 5 mm F Cable gland PG 16 for a cable diameter between 13 5 mm 17 mm Procedure N amp O oa a 22 Choose an appropriate gland for the AC cable Check the grid voltage and compare with Vac nom on the type label The exact operating range of the i
39. heating and power reduction Ina living area do not mount the unit on plasterboard walls or similar in order to avoid audible vibrations When in use the inverter emits noises which may be perceived as a nuisance ina living area Observe the minimum clearances to walls other inverters or objects as shown in the diagram in order to ensure sufficient heat dissipation and sufficient space for removing the Electronic Solar Switch Multiple inverters installed in areas with high ambient temperatures e l If necessary increase the clearance spaces and make sure there is enough fresh air supply to ensure sufficient cooling of the inverters Installation Manual SB25_30 IA IEN1 11040 15 Mounting SMA Solar Technology AG 4 3 Mounting the Inverter with the Wall Mounting Bracket CAUTION AN Risk of injury due to the heavy weight of the inverter Take the inverter s weight of approx 32 kg into account for mounting Use mounting material suitable for the surface when attaching the wall mounting bracket 1 Use the wall mounting bracket as a drilling template and mark the positions of the drill holes i 440 mm k i i E q E i o i o BI a STE n je do aaa H 111mm 109 mm di 218mm E i E E o 5 CAS i i E i e o i l ble oen ES o f Q nr AETAT 2 Attach the wall mounting bracket to the wall using appropriate
40. hecking the PV Array for a Ground Fault page 54 ROM The inverter s firmware is faulty Corrective measures e If this disturbance occurs frequently contact the SMA Serviceline Shutdown Temporary inverter disturbance Corrective measures Contact the SMA Serviceline Vac Bfr Vac Srr The grid voltage is no longer within the permissible range Bfr or Srr is an internal message that has no meaning for the user This fault can be caused by any of the following conditions e Grid disconnected miniature circuit breaker fuse AC cable is broken or AC cable is highly resistive For safety reasons the inverter disconnects itself from the grid Corrective measures Check the grid voltage and connection on the inverter e If the grid voltage lies outside the acceptable range because of local grid conditions ask the distribution grid operator if the voltages can be adjusted at the feed in point or if they agree to changes in the values of the monitored operational limits operation parameters Vac Min and Vac Max e If the grid voltage lies within the tolerance range yet Vac Bfr or Vac Srr faults are still displayed contact the SMA Serviceline 52 B25_30 IA IEN111040 Installation Manual SMA Solar Technology AG Failure Search Message Vpv Max Vpv Max Description and corrective measure Overvoltage at DC input The inverter could be damaged
41. ing the test sequence the frequency limit applied is Hubot shown in the display of the inverter Fac mipi da Hi ii of aft j EEE us H The frequency limit is increased successively until the shutdown threshold is reached and the inverter disconnects from the grid Once the inverter has disconnected from the grid the display successively shows the following values one after the other Disconnection value Uslore di soglia e Calibration value Hal Laralura 45 iHz e Reaction time Tempo imlLeruerto Current grid frequency Fresuenza rete Dal eff SE AHE When the inverter has carried out the 4 tests it switches to MPP Operation mode The original calibration values are then re set and the inverter automatically connects to the grid If you would like to carry out the test again you must disconnect the inverter i e disconnect it on the AC and DC sides and then later re activate it You can then restart the selftest as described in section 6 2 1 Starting the Self Test by Tapping page 37 The inverter starts again the test sequence as described in section 6 2 2 Completion of the Self Test page 37 Installation Manual SB25_30 IA IEN 111040 41 Opening and Closing SMA Solar Technology AG 7 Opening and Closing 7 1 Safety DANGER A Risk of lethal electric shock Before opening the inverter observe the following Ensure that no voltage is present on the AC side Ensure that neither voltage
42. itch Brief Description ESS handle replacement part SMA order number ESS HANDLE 0 1 Also enter the inverter s serial number Replacement varistors Set of thermally monitored varistors SB TV4 2 pcs including insertion tool Insertion tool for replacing the Insertion tool for varistor sets SB TVWZ varistors Positive grounding set Upgrade kit for the positive ESHV P NR connection to ground of the DC input Negative grounding set Upgrade kit for the negative ESHV N NR connection to ground of the DC input RS485 upgrade kit RS485 interface A85PB NR Bluetooth upgrade kit Bluetooth interface BTPBINV NR SUNCLIX DC connector Field plug for conductor cross SUNCLIX FC6 SET sections of 2 5 mm 6 mm2 70 SB25_30 IA IEN1 11040 Installation Manual SMA Solar Technology AG Contact 13 Contact If you have technical problems concerning our products contact the SMA Serviceline We need the following information in order to provide you with the necessary assistance e Inverter type Serial number of inverter e Type and number of the PV modules connected e Optional equipment e g communication devices Blink code or display message of the inverter SMA Solar Technology AG Sonnenallee 1 34266 Niestetal 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 Installation Manual SB25_30 IA IE
43. ltage limit applied is shown in Lac mini 15m GAL the display of the inverter baent oe oF The voltage limit is increased successively until the shutdown threshold is reached and the inverter disconnects from the grid Once the inverter has disconnected from the grid the display successively shows the following values one after the other e Disconnection value Halore di soglia Corie 239 SF e Calibration value Ual Laralura 165 BOL e Reaction time Tempo inleruento dos e Current grid voltage Installation Manual SB25_30 IA IEN 111040 39 Commissioning SMA Solar Technology AG Maximum Frequency In a third step the inverter tests the maximum frequency During the test sequence the frequency limit applied is AuboLezt shown in the display of the inverter Fac mani Sa ZHE The frequency limit is reduced successively until the shutdown threshold is reached and the inverter disconnects from the grid Once the inverter has disconnected from the grid the display successively shows the following values one after the other e Disconnection value Ualore di aoglia On 49 95H e Calibration value Ual Laralura es AIHE e Reaction time Tempo inleruento Ae me i e Current grid frequency Frexuenza Pele al eff 1 SE BEHS 40 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Commissioning Minimum Frequency In the last step the inverter tests the minimum frequency Dur
44. maged or missing D Object Quantity Description Sunny Boy Wall mounting bracket Electronic Solar Switch ESS DC plug connectors 3 x positive 3 x negative Sealing plugs for DC connectors Protective cap for AC socket on inverter Ii lalal AC connection socket socket unit threaded sleeve pressure screw PG13 5 sealing ring PG13 5 fastening case PG13 5 cable gland PG16 M6x12 cylinder head screw and conical spring washer Jumper Installation guide Set of documents with explanations and certificates User manual zZ z zl z Supplementary sheet with inverter factory settings 12 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Unpacking 3 2 Identifying the Inverter You can identify the inverter using 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 inverter as well as device specific characteristics are specified on the type label Installation Manual SB25_30 IA IEN 111040 13 Mounting SMA Solar Technology AG 4 Mounting 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 Do not mount the inverter in areas where highly flammable materials are stored Do not mount th
45. merica com SMA Technology Australia Pty Ltd www SMA Australia com au SMA Benelux SPRL www SMA Benelux com SMA Beijing Commercial Co Ltd www SMA China com SMA Czech Republic s r o www SMA Czech com SMA France S A S www SMA France com SMA Hellas AE www SMA Hellas com SMA Ib rica Tecnolog a Solar S L www SMA lberica com SMA Italia S r l www SMA ltalia com SMA Technology Korea Co Ltd www SMA Korea com
46. nection SMA Solar Technology AG 12 Make sure the wires are securely connected 13 Screw the threaded sleeve onto the socket element 14 Tighten the pressure screw or cable gland tightly onto the threaded sleeve Size used Procedure PG13 5 D The fastening case along with the sealing ring is pressed into the threaded sleeve and can no longer be seen PG16 e Retighten the lock nut of the cable gland M AC connection socket has been screwed together 15 If the AC connection socket is not immediately connected to the inverter close the AC plug on the inverter with the protective cap provided 24 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Electrical Connection 16 Insert the AC connection socket into the AC socket A AA on the inverter Remove the protective cap beforehand if required 1 A 17 Screw the threaded ring of the AC connection socket tightly onto the AC socket on the inverter a The threaded ring serves to seal and relieve strain on the AC connection socket MI The AC cable is now connected to the inverter DANGER Danger to life due to high voltages in the inverter Do not switch on the miniature circuit breaker until the PV array has been connected and the inverter is securely closed 5 2 3 Connecting Additional Grounding If a second protective conductor additional grounding or equipotential bonding is requi
47. ng continuously Red is not glowing Yellow is not glowing Status OK feed in operation is glowing continuously is not glowing Ground fault or varistor defective is glowing continuously OK initialization Flashes quickly 3 x per second is not glowing is not glowing OK stop is glowing continuously is not glowing Ground fault or varistor defective Flashes slowly 1 x per second is not glowing is not glowing OK waiting grid monitoring is glowing continuously is not glowing Ground fault or varistor defective goes out briefly approx 1 x per second is not glowing is not glowing OK derating is glowing continuously is not glowing Ground fault or varistor defective is not glowing is not glowing is not glowing At night OK nighttime deactivation Daytime Electronic Solar Switch is not attached is glowing flashing Fault is glowing continuously is not glowing Ground fault or varistor defective is glowing flashing Ground fault or varistor defective and disturbance Installation Manual SB25_30 IA IEN1 11040 49 Failure Search SMA Solar Technology AG 9 2 Fault Messages When a disturbance occurs the inverter generates a message which depends on the operating mode and the type of the detected disturbance Message IPV Overvoltage IDISCONNECT DC
48. nverter is specified in the operation parameters The corresponding document can be found in the download area at www SMA de en in the Technical Description category of the respective inverter Switch off the miniature circuit breaker ensure that the device cannot be unintentionally or accidentally reconnected and make sure no voltage is present Strip approx 30 mm from the AC cable Shorten Land N by 5 mm Strip 4 mm to 5 mm of insulation from the AC cable conductors Pass the pressure screw and or cable gland and socket tube over the AC cable SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Electrical Connection Size used Procedure PG13 5 e Push the sealing ring into the fastening case e Slide the PG13 5 pressure screw and the fastening case including the sealing ring over the AC cable e Slide the threaded sleeve over the AC cable PG16 e Slide the PG16 cable gland over the AC cable e Slide the threaded sleeve over the AC cable 8 Insert the protective conductor PE green yellow into the screw terminal with the grounding sign on the socket and tighten the screw 9 Insert the neutral conductor N blue into screw terminal 1 on the socket and tighten the screw 10 Insert phase L brown or black into screw terminal 2 on the socket and tighten the screw 11 Leave screw terminal 3 on the socket free Installation Manual SB25_30 IA IEN 111040 23 Electrical Con
49. openings of the terminal contacts 1 MI The terminals will loosen If you do not receive an insertion tool for operating the terminals 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 varistor 2 5 Insert new varistor 3 The pole with the small loop crimp must be fitted to terminal 1 when replacing the varistor 6 Close the inverter as described in section 7 3 Closing the Inverter page 45 M The check and replacement of the varistors is completed Installation Manual B25_30 IA IEN111040 57 Decommissioning SMA Solar Technology AG 10 Decommissioning 10 1 Disassembling the Inverter CAUTION AN Risk of injury due to the heavy weight of the inverter Note that the inverter weighs approx 32 kg 1 Open the inverter as described in section 7 2 Opening the Inverter page 42 2 Remove all cables from the inverter Close the inverter with the 4 screws 4 Loosen the lower screw between the inverter and the wall mounting bracket 5 Lift the inverter off the wall mounting bracket M The inverter is disassembled 58 SB25_30 IA IEN1 11040 Installation Manual SMA Solar Technology AG Decommissioning 10 2 Packing the Inverter If possible always pack the inverter in its original packaging If it is no longer available
50. ra ag C D Position Description Value A External diameter 9 mm 17 mm B Stripping length 30 mm Conductor cross section max 2 5 mm D Stripped insulation 4mm 5 mm 20 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Electrical Connection Load Disconnection Unit You must install a separate miniature circuit breaker for each inverter in order to ensure that the inverter can be securely disconnected under load The maximum permissible rating can be found in section 11 Technical Data page 60 Detailed information and examples for the rating of a miniature circuit breaker can be found in the Technical Information Miniature 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 miniature circuit breaker the protective function of the miniature circuit breaker is no longer guaranteed It can result in a cable fire or destruction of the inverter Never connect several inverters to a single miniature circuit breaker Observe the maximum permissible fuse protection of the inverter when selecting the miniature circuit breaker DANGER Danger to life due to fire When a generator inverter and a load are connected to the same miniature circuit breaker the protective function of the miniature circuitbreaker is no longer guaranteed The current from the inverter and the
51. red you can additionally ground the inverter on the enclosure Overview of the Additional Grounding A B Ci D E Object Description A M6x12 cylinder head screw included in the scope of delivery B Washer C Terminal lug M6 with protective conductor D Conical spring washer included in the scope of delivery E Metal shackle on the underside of the enclosure F Wall mounting bracket of the inverter Installation Manual B25_30 IA IEN111040 25 Electrical Connection Procedure 1 Attach the washer terminal lug with protective conductor and the conical spring washer to the cylinder head screw The teeth of the conical spring washer must be facing the metal shackle Insert the cylinder head screw into the metal shackle on the underside of the enclosure and screw into the wall mounting bracket Tighten the cylinder head screw using a torque of 6 Nm Check that the contact between the protective conductor and the enclosure is in accordance with the regulations valid for the country of installation 5 3 Setting the Display Language SMA Solar Technology AG S You can set the language of the display using the switches underneath the display assembly inside the inverter Procedure l 2 w 26 Open the inverter as described in section 7 2 Opening the Inverter page 42 Set the switches to the required language as shown below
52. ric 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 Installation Manual B25_30 IA IEN111040 27 Electrical Connection SMA Solar Technology AG 5 4 2 Assembling the DC Plug Connector In order to be connected to the inverter all connection cables of the PV modules must be equipped with the DC plug connectors provided To assemble the DC connectors proceed as follows Ensure the plug connectors have the correct polarity The DC connectors have the symbols and Cable requirements 25 6 mm DE Bie e Use a PV1 F cable Procedure 1 Insert stripped cable into the plug up to the limit 2 Press the clamping clip down until it audibly snaps into place 55 3 Ensure the cable is correctly in place Result Measure M If the conductors are visible in the hollow e Proceed to step 4 cavity of the clamping clip the cable is in the correct position 28 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Electrical Connection Result M Ifthe conductors are not visible in the hollow cavity the cable is not in the correct position Measure Declamp the clamping clip For this purpose use
53. s Close all DC inputs with the corresponding DC connectors and the supplied sealing plugs Securely attach the Electronic Solar Switch again Grounding the PV array l Comply with the local regulations for grounding the modules and the PV array SMA Solar Technology AG recommends connecting the array frame and other electrically conductive surfaces so that there is continuous conduction and to ground them in order to ensure maximum protection for plants and persons Installation Manual SB25_30 IA IEN1 11040 9 Safety SMA Solar Technology AG 2 3 Explanation of Symbols This section gives an explanation of all the symbols found on the inverter and on the type label 2 3 1 Symbols on the Inverter Symbol Explanation Operation display Indicates the operating state of the inverter Ground fault or varistor defective Read section 9 3 Red LED is Glowing Continuously page 53 Fault or disturbance Read section 9 Failure Search page 49 Tap to switch on the display light and switch to the next display message Electronic Solar Switch ESS DC load disconnection unit 0 When the Electronic Solar Switch is plugged in the DC circuit is closed e 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 connectors as described in section 7 2 Opening the Inverter p
54. turer 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 Description 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 component parts not expressly recommended or sold by SMA Solar Technology AG shall void any warranty claims and the operation permission 8 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Safety 2 2 Safety Instructions DANGER Danger to life due to high voltages in the inverter e All work on the inverter may only be carried out by electrically skilled persons CAUTION Danger of burn injuries due to hot enclosure parts Do not touch the enclosure during operation Only touch the lid during operation i NOTICE N Dust and water in the inverter can damage the device k Once the Electronic Solar Switch has been pulled out the inverter only provides protection rating IP21 The inverter is then no longer protected against water and dust In order to also maintain the IP65 degree of protection during temporary decommissioning proceed as follows e Unlock and disconnect all DC connectors Open all DC connectors and remove the cable
55. ugged The miniature circuit breaker is rated correctly 2 Switch on the miniature circuit breaker M or M or M Green LED glows commissioning has been successful Green LED flashes in case of insufficient irradiation grid connection conditions have not yet been reached Wait for sufficient irradiation The red or yellow LED is glowing or flashing a disturbance has occurred Proceed to step 3 gt Green LED Operation Red LED Ground fault or varistor defective Yellow LED Fault i J Self test in accordance with DK 5940 Ed 2 2 for initial commissioning applies to Italy only The Italian DK 5940 standard prescribes that an inverter can only operate on the power distribution grid after the disconnection times for overvoltage undervoltage minimum frequency and maximum frequency have been checked Start the self test as described in section 6 2 Self Test in Accordance with DK 5940 Ed 2 2 Applies to Italy Only page 37 The test takes approx 8 minutes 3 Read section 9 Failure Search page 49 and if necessary eliminate the fault or disturbance 36 SB25_30 IA IEN 111040 Installation Manual SMA Solar Technology AG Commissioning 6 2 Self Test in Accordance with DK 5940 Ed 2 2 Applies to Italy Only 6 2 1 Starting the Self Test by Tapping You can start testing the disconnection times by tapping on the enclosure lid A prerequisite

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