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Installation

SMA

 

Technologie AG

Page 26

SB1100LV-11:SE2006

Installation Guide

6.2.2 PV string (DC) connection

To connect up the input, follow these steps:

1.

Make sure the PV generator connectors have the
right polarity and do not exceed the maximum
string voltage of 60 V (DC). See also chapter
5.2 "PV generator requirements" (Page 15).

Warning!
Dangerous high voltages may be present. Danger of death!

2.

Taking one DC plug connector at a time,
measure the direct current voltage between one
DC connection of a string and earth potential.

3.

If the measured voltages are constant and if their
total is roughly the same as the open circuit
voltage of the string, then there is an ground fault
in this string. Its approximate location can be
deduced from the relationships between the
voltages.

Attention!
Do not connect strings to the Sunny Boy SB 1100LV that contain a ground
fault until you have fixed the earth fault in the PV generator.

4.

Repeat points 2 and 3 for each string.

5.

Open the Sunny Boy as described in chapter 7.1
"Opening the Sunny Boy" (Page 33).

Содержание Sunny Boy SB 1100LV

Страница 1: ...Sunny Boy SB 1100LV Inverter for Photovoltaic Plants Installation Guide Version 1 1 SB1100LV 11 SE2006 IME SB1100LV ...

Страница 2: ......

Страница 3: ...ion site requirements 13 5 2 PV generator requirements 15 5 3 Low voltage grid AC 15 6 Installation 19 6 1 Mounting the unit 19 6 2 Electrical installation 20 6 2 1 Connecting the AC output 21 6 2 2 PV string DC connection 26 6 3 Reverse current 27 6 4 Commissioning 30 7 Opening and closing the Sunny Boy 33 7 1 Opening the Sunny Boy 33 7 2 Closing the Sunny Boy 33 8 Technical data 35 8 1 PV genera...

Страница 4: ... Germany 41 8 4 3 Country specific parameter settings 42 8 4 4 Non modifiable parameters 43 9 Certificates 45 9 1 CE declaration of conformity 45 9 2 SMA grid guard certificate 46 10 Replacing the varistors 47 11 Rating for a line circuit breaker 51 12 The communications interface 55 12 1 Connection of the interface 56 12 1 1 Jumper functions 57 13 Contact 59 ...

Страница 5: ...tions please note the following explanation of symbols used This symbol identifies an example This symbol identifies a notice where failure to follow the advice will make the procedure or operation more difficult This symbol indicates a fact that when not observed could result in damage to components or danger to persons Please read these sections especially carefully ...

Страница 6: ...Explanation of the symbols used SMA Technologie AG Page 6 SB1100LV 11 SE2006 Installation Guide ...

Страница 7: ...nd set up SMA Sunny Boy SB 1100LV inverters quickly and correctly The Sunny Boy SB 1100LV contains the SMA grid guard 2 This is a type of independent disconnection device It ensures that the Sunny Boy SB 1100LV complies with the VDEW Verband der Elektrizitätswirtschaft German Electricity Industry Association regulations for the connection and parallel operation of electrical power units to the low...

Страница 8: ...Foreword SMA Technologie AG Page 8 SB1100LV 11 SE2006 Installation Guide ...

Страница 9: ...apacitors must be discharged The Sunny Boy must be disconnected from the mains grid and precautions must be taken to prevent the grid being reconnected In addition the connections to the PV generator must be disconnected After isolating the AC and DC voltage you must wait approx 30 minutes for the capacitors in the Sunny Boy to discharge Only then is it safe to open the unit by removing the cover ...

Страница 10: ...Safety instructions SMA Technologie AG Page 10 SB1100LV 11 SE2006 Installation Guide ...

Страница 11: ...side the Sunny Boy SB 1100LV with the cover removed Varistors page 47 Socket for communication RS232 RS485 NLM Piggy Back Radio page 59 Sunny Display PV input terminal DC page 26 PE protective earth connecting cable for cover Flat connection for grounding the cable shield for RS232 and RS485 communications Communications connector Connection plug AC page 21 Jumper for communication Operating statu...

Страница 12: ...Overview SMA Technologie AG Page 12 SB1100LV 11 SE2006 Installation Guide 4 2 External dimensions 434 mm 214 mm 295 mm ...

Страница 13: ...e yield of the PV system The Sunny Boy is designed to be mounted on a vertical wall If absolutely necessary however the Sunny Boy can be installed tilted back at a maximum angle of 45 For an optimum energy yield and the most convenient operation vertical installation at eye level is preferable If installing the unit outdoors make sure that it is not slanting forward The rear panel is designed such...

Страница 14: ...nted on plasterboard walls or similar as otherwise audible vibrations are likely to result We recommend securing the unit to a solid surface The Sunny Boy makes noises when in use which can in the domestic setting be seen as a nuisance Warning Risk of burns The temperature of individual parts of the case and components within the Sunny Boy can reach more than 60 C Touching could result in burns Do...

Страница 15: ...able at www SMA de 5 3 Low voltage grid AC The Sunny Boy must have a three conductor connection to the mains grid live L neutral N protective earth PE The grid connection terminals on the AC connection socket included in the accessories kit can take wires with a cross section of up to 2 5 mm The accessories kit also contains a PG13 5 AC connection socket for connecting cables with a cable diameter...

Страница 16: ...body contact this limits the current that can flow and therefore determines the response behavior of the circuit breaker Sufficient distance between the circuit breakers so as to avoid undue heating heat can trigger the circuit breakers early Selectivity Protection class of the connected load VDE 0100 part 410 Protection against electric shock The following standards should be followed in all case...

Страница 17: ...ioning the conductor cross section so that line losses do not exceed 1 at the nominal power Line losses depending on the cable length and cross section are shown in the graph below Multi wire cables with copper forward and return conductors are used The maximum cable lengths for the different cable cross sections are as follows Conductor cross section 1 5 mm 2 5 mm Max length 21 m 35 m Do not use ...

Страница 18: ...55 Hz 50 2 Hz Voltage range extended operating range 180 V 265 V Frequency range extended operating range 45 5 Hz 54 5 Hz a The Sunny Boy can feed into the public grid at a maximum output voltage of 260 V for brief periods However DIN VDE 0126 1 1 stipulates that the average voltage over 10 minutes must not exceed 253 V I e if the grid voltage remains constant at 254 V the inverter is automaticall...

Страница 19: ...ith wall plugs type SX8 When selecting the mounting materials be sure to take into account the weight of the Sunny Boy SB 1100LV 29 kg 1 Fit the wall bracket 1 To mark the positions to drill the holes you can use the wall bracket as a drilling template 2 Now hook the Sunny Boy SB 1100LV onto the wall bracket 2 at its upper mounting plate so that it cannot be moved sideways 3 Fix the Sunny Boy SB 1...

Страница 20: ...Electrical installation The complete wiring for a Sunny Boy SB 1100LV is shown schematically in the following diagram Circuit breaker according to DIN VDE 0100 712 Attention Make sure to check the polarity of the strings before connecting them Communication max 2 5 mm String Circuit ...

Страница 21: ...for assistance The inverter can feed into the grid at an output voltage of 260 V for brief periods However the average output over a 10 minute period may not exceed 253 V 2 Isolate the grid connection switch the line circuit breaker to its off position make sure it cannot be switched back on and test to make sure no voltage is present 3 Now take the AC connection socket parts from the accessories ...

Страница 22: ...able 3 Now connect the individual conductors to the socket element in sequence Protective earth PE green yellow to the screw terminal with the earth sign Make sure that the PE earth wire is longer than the N and L connected wires Neutral conductor N blue to screw terminal 1 Live L brown or black to screw terminal 2 Terminal 3 remains unused 4 Make sure the wires are securely connected Sealing ring...

Страница 23: ...g the cap supplied in the accessories kit If the Sunny Boy is already installed you can now connect up the fully assembled AC connection socket to the flange plug on the Sunny Boy To do this remove the protective cap from the flange plug on the Sunny Boy Firmly tighten the threaded ring on the AC connecting socket to the flange plug to seal the connection and secure it Attention Do not switch the ...

Страница 24: ...E green yellow to the screw terminal with the earth sign Make sure that the PE earth wire is longer than the N and L connected wires Neutral conductor N blue to screw terminal 1 Live L brown or black to screw terminal 2 Terminal 3 remains unused 3 Make sure the wires are securely connected 4 Now screw the threaded sleeve onto the socket element and tighten it Threaded sleeve Pressure screw with PG...

Страница 25: ...lied in the accessories kit If the Sunny Boy is already installed you can now connect up the fully assembled AC connection socket to the flange plug on the Sunny Boy To do this remove the protective cap from the flange plug on the Sunny Boy Firmly tighten the threaded ring on the AC connecting socket to the flange plug to seal the connection and secure it Attention Do not switch the line circuit b...

Страница 26: ...or at a time measure the direct current voltage between one DC connection of a string and earth potential 3 If the measured voltages are constant and if their total is roughly the same as the open circuit voltage of the string then there is an ground fault in this string Its approximate location can be deduced from the relationships between the voltages Attention Do not connect strings to the Sunn...

Страница 27: ...ng of the modules has no significant effect on Voc even in this situation no significant reverse current occurs Under fault free operation of a correctly laid out PV generator no excessive reverse current can occur Reverse current can only occur due to a fault in the solar generator e g short circuit in one or more modules that causes the open circuit terminal voltage of a module string to be sign...

Страница 28: ...ing and subsequent reverse current in parallel connected systems Short circuit in one or more modules Short circuit in one or more cells in a module Double ground fault in a module and or the cabling Despite the fact that these faults are very unlikely and extremely rare in practice preventative measures must still be taken After all these types of faults carry a high potential for damage and dang...

Страница 29: ...es String diodes connected in series to the individual strings prevent any form of reverse current in the corresponding string Disadvantage The diode is permanently connected in series to the corresponding generator string which means that the current of the string in question always flows through it leading to correspondingly high permanent losses If the diode fails the protective function may be...

Страница 30: ...4 Commissioning You can start up the Sunny Boy SB 1100LV when the lid is securely screwed shut the AC mains cable is connected correctly the DC cables PV strings are fully connected How to start up the inverter 1 First of all switch the line circuit breaker and the DC circuit breaker to the on position 2 Look at the LED display and consult the table on the following page to check whether the Sunny...

Страница 31: ...causes see the operating instructions Green Red Yellow Status Illuminates continuously Is not illuminated Is not illuminated OK working mode Illuminates continuously Is not illuminated Fault Illuminates continuously OK initialization Flashes quickly 3x per second Is not illuminated Is not illuminated OK stop Illuminates continuously Is not illuminated Fault Flashes slowly 1x per second Is not illu...

Страница 32: ...Installation SMA Technologie AG Page 32 SB1100LV 11 SE2006 Installation Guide ...

Страница 33: ... the lid when you remove them 7 2 Closing the Sunny Boy 1 Reconnect the earth wire PE to the lid Now secure the lid to the Sunny Boy SB 1100LV by tightening the four screws evenly 2 Switch the DC circuit breaker to the on position 3 Switch the line circuit breaker to the on position 4 Now check whether the LED display on the Sunny Boy SB 1100LV indicates that the device is functioning correctly At...

Страница 34: ...Opening and closing the Sunny Boy SMA Technologie AG Page 34 SB1100LV 11 SE2006 Installation Guide ...

Страница 35: ...ltage MPP range UPV 21 V 60 V Max input current IPV max 62 A Max input power PDC 1240 W Recommended total generator power 1380 Wp for central Europe Connection of the DC input side DC screw terminal Surge voltage protection Thermally monitored varistors Voltage ripple Uss 10 of the input voltage Insulation protection Ground fault monitoring Riso 1 MΩ Operating consumption 4 W standby Reverse polar...

Страница 36: ... grid guard 2 double implementation Phase shift angle based on the current s fundamental frequency cos phi 1 Overvoltage category III Test voltage DC 1 6 kV 1 s routine testing 5 s type testing Test surge voltage 4 kV serial interface 6 kV Own consumption in night mode 0 1 W a The Sunny Boy can feed into the public grid at a maximum output voltage of 260 V for brief periods However DIN VDE 0126 1 ...

Страница 37: ... The lower the input voltage the higher the efficiency General data Protection category per DIN EN 60529 IP65 Dimensions w x h x d 434 mm x 295 mm x 214 mm approx Weight 29 kg approx External interfaces Data transmission over mains power line optional Data transmission over separate data cable optional RS232 RS485 electrically separated Wireless data transmission optional Efficiency Max efficiency...

Страница 38: ... itself from the grid Once the average over 10 minutes returns to a value of less than 253 V the inverter returns to Working mode If surge voltage protection is not required in the relevant grid area outside Germany it can be deactivated by means of presetting the LDVtgC parameter In this event only the fast cut off via the Uac Max parameter intervenes AntiIsland Ampl Amplification of the AntiIsla...

Страница 39: ...when you exchange the Sunny Boy and want to use the data from the old device I Ni Test Setting the impulse for impedance monitoring This parameter only functions when the Sunny Boy is deactivated disconnected on the AC side or in Stopp mode Inst Code Parameters for self contained power system recognition can only be changed after entering the SMA grid guard password LDVtgC Compensation for the vol...

Страница 40: ...ing Reset Fehler Resets a permanent fault Speicher Storage Permanent Modified parameters are stored in the EEPROM and can be used even when the Sunny Boy has been restarted Volatil Prevents the parameters from being stored in the EEPROM the parameters are only stored until the next restart T Start The period the Sunny Boy waits after the Upv Start value has been reached T Stop The period the Sunny...

Страница 41: ...2000 500 Default GER VDE0126 1 1 GB G83 SP RD1663 Off_Grid Other trimmed GER VDE0126 1 1 dFac Max Hz s 0 1 4 0 0 25 dZac Max mOhm 0 20000 750 E_Total kWh 0 200000 Fac delta Hz 0 1 4 5 2 45 Fac delta Hz 0 1 4 5 0 19 h_Total h 0 200000 I NiTest mA 0 7500 6000 Operating mode MPP UKonst Stopp Turbine Mode Off Grid MPP Storage function Default Parameter Reset Operating Data Reset Fault None Speicher St...

Страница 42: ...ignated with are safety related grid monitoring parameters To change the SMA grid guard parameters you must enter you personal SMA grid guard password Inst Code Please call the Sunny Boy Hotline to obtain your personal SMA grid guard password Name Unit Country settings Germany Great Britain Spain Default GER VDE0126 1 1 GB G83 SP RD1663 dFac Max Hz s 0 25 0 2 2 dZac Max mOhm 750 350 350 Fac delta ...

Страница 43: ... Non modifiable parameters Grayed out parameters are only displayed in installer mode The following parameters are displayed in the parameter list but cannot be changed Name Unit Factory setting Fac Pderating Fac Tavg ms 160 Plimit W 1100 SMA SN Software BFR Software SRR Uac Tavg ms 80 ...

Страница 44: ...Technical data SMA Technologie AG Page 44 SB1100LV 11 SE2006 Installation Guide ...

Страница 45: ...ant with the following standards EMC Emission DIN EN 61000 6 3 2002 08 DIN EN 61000 6 4 2002 08 DIN EN 55022 2003 09 Class B Utility Interference DIN EN 61000 3 3 2002 05 DIN EN 61000 3 2 2001 12 Immunity DIN EN 61000 6 1 2002 08 DIN EN 61000 6 2 2002 08 Safety DIN EN 50178 1998 04 Semiconductor Converter DIN EN 60146 1 1 1994 03 The above mentioned devices are therefore marked with a CE sign Note...

Страница 46: ...1100LV 11 SE2006 Installation Guide 9 2 SMA grid guard certificate The Sunny Boy SB 1100LV is equipped with the SMA grid guard 2 independent disconnection device and it is covered by the industrial trade association SMA grid guard 2 certificate ...

Страница 47: ... make sure the ground fault is fixed Generally the PV generator s installation engineer should be hired for this job In this case continue as described under point 10 but without reconnecting the faulty string Instead of reconnecting the string protect its DC plug against accidental touch contact e g by fitting the protective caps or using sufficient high voltage insulating tape If you did not fin...

Страница 48: ...ristors please contact SMA As an alternative the terminal contacts can be operated using a suitable screwdriver Since the failure of one varistor is generally due to factors that affect all varistors in a similar way temperature age inductive overvoltages it is highly recommended that you replace both varistors not just the one that is obviously defective The varistors are specially manufactured f...

Страница 49: ...age 49 If no ground fault and no defective varistor were found there is probably a fault in the Sunny Boy In this case contact the SMA hotline to discuss what to do next 12 Now check whether the LED display on the Sunny Boy SB 1100LV indicates that the device is functioning correctly ...

Страница 50: ...Replacing the varistors SMA Technologie AG Page 50 SB1100LV 11 SE2006 Installation Guide ...

Страница 51: ...at the chosen cable 2 5 mm is ideally routed and can take a nominal current of 11 A Selecting a line circuit breaker The maximum possible nominal current for the cable used and the maximum possible fuse protection for the inverter now limit the maximum possible nominal current for the line circuit breaker In our example 10 A is possible However the thermal suitability of the line circuit breaker s...

Страница 52: ...nt load 1h 0 9 a Reduction when 9 circuit breakers are arranged side by side without gaps 0 77 b Increase in nominal current as a result of ambient temperatures of 40 C in the circuit breaker panel 1 07 c Result The nominal load current for the line circuit breaker is calculated as Ibn 10 A x 0 9 x 0 77 x 1 07 7 4 A Example for the thermal selection of a 10 A line circuit breaker with B sensitivit...

Страница 53: ...the following solution might have been used By spacing the circuit breakers at an interval of 8 mm the reduction factor would be 0 98 instead of 0 77 As a result the maximum current carrying capacity would be 9 4 A In addition to the thermal rating of the circuit breakers the boundary conditions as laid out in section Rating for a line circuit breaker in a photovoltaic electrical power unit operat...

Страница 54: ...Rating for a line circuit breaker SMA Technologie AG Page 54 SB1100LV 11 SE2006 Installation Guide ...

Страница 55: ... individual communications interfaces can be found in the communication device manual This wiring diagram includes Specifications of the necessary cable type Which of the inverter s connections are used Whether jumpers need to be mounted and if so which jumpers Whether the PE needs to be connected to the cable shield The next pages will describe the following The enclosure feed throughs for the co...

Страница 56: ...terminal strip D as described in the terminal connection diagram of the communication device Note down the connector color coding for the respective pin numbers Connecting the receiver incorrectly can cause the devices to be damaged Pin 2 color Pin 3 color Pin 5 color Pin 7 color 9 Connect the jumpers E if the terminal connection diagram of the communication device indicates this as necessary The ...

Страница 57: ...n the base of the Sunny Boy B Cable route gray surface C PE connector D Screw terminals for connection of the communication wires E Jumper slot F Interface port Jumper A Jumper B Jumper C RS232 RS485 Termination Bias 1 Bias 2 NLM Sunny Beam A detailed description of the jumper functions can be found in the communication device manual F E D C A B ...

Страница 58: ...The communications interface SMA Technologie AG Page 58 SB1100LV 11 SE2006 Installation Guide ...

Страница 59: ...se contact our hotline Have the following information available when you contact SMA Inverter type Type and number of modules connected Communication method Serial number of the Sunny Boy Blink code or display of the Sunny Boy Address SMA Technologie AG Hannoversche Strasse 1 5 D 34266 Niestetal Germany Tel 49 561 95 22 499 Fax 49 561 95 22 4699 hotline SMA de www SMA de ...

Страница 60: ...protection conditions Altering the product or supplied software without authority The product malfunctions due to operating attached or neighboring devices beyond statutory limit values In case of unforeseen calamity or force majeure Software licensing The use of supplied software produced by SMA Technologie AG is subject to the following conditions This software may be copied for internal company...

Страница 61: ......

Страница 62: ...MA Technologie AG Hannoversche Strasse 1 5 34266 Niestetal Germany Tel 49 561 9522 4000 Fax 49 561 9522 4040 E Mail Info SMA de Freecall 800 SUNNYBOY Freecall 800 78669269 Innovation in Systems Technology for the Success of Photovoltaics ...

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