SG50K3 PV Grid-Connected Inverter User Manual
Contents
1. JNG2OW Grow with the sun SG50K3 PV Grid Connected Inverter User Manual SG50K3 3A E Ver27 200907 Version 2 7 Sungrow power supply Co Ltd mp JUNGZOW BA v6 BOR Grow with the sun Table of contents 1 Symbols Explanation ssssssssssssrssssssssssssrrrrrrrresssssssserrrrrrrerssssseserrrrrreeee 2 VATPOCWGH Of nag ccetccsvesoten rnea EN EAEEREN EEEE AEREA EREE 2 2 1 Grid Connected PV inverter cccccc cece cece eee ee eee eae ea seat en eea tenes 2 2 2 WOW to use ihis IMGNUG getesewscstosannacisdardesnsatversinnaniedesenaanintauaseaman 2 3 oale iy AS MIC NOUNS eee E EESE E A EEEE E ES 3 4 General Descriptions of SG50K3 sssssssssssserrrrrrsssssssrrrrrererrrrrsssrsrren 4 Al Circi Desci POR erare A E EE EEE 4 AZ Vine WINO Wer GCS sranna AEE E EEE EAN 5 SO TAO e a E E E E E E E E E EAE E 6 Sul ODEO MOIES aea outs E A E E NS 6 5 2 Modes Transition acusrs andocesesusantasniarannudeuiestadeteeintssanaessseataneansomsadences 7 5 3 Emergency Stop Buton cc cctsjce dna aascientamosnndsdceadedncteve Sed cesiensnssucesveceneendacen 8 De eE r EEE E ee E nee EET 9 6 1 LED VACHC TGS a escsedauecigaecieasicianiccuiela dan aadnwacesanesndeineentaceiaieSadassuumicens 9 6 2 LCD Control Pane laearceraccaacounecoteins cass EEE EENE 10 6 3 Explanation of the Display Symbols c cc ccc cee cece ene eneeeeeeas 11 6 4 The Total Display Menu 2 cc ccssaccocaweresenisn cactantiaanieossacdenn eacanannsce 12 6 5 Additiona2. set param Password 1111 AN Sys param Adj param Pro param Com param a ts Language Time Power adj Load default Time Date 07 04 12 Time 14 28 30 1 In the default menu 2 Press ENTER or gt to enter the general control menu 3 Navigate the hand pointer to the Set param and press ENTER button A Press ENTER button to confirm the password input Note that the default password is 1111 5 Navigate the hand pointer to the Sys param and press ENTER button 6 Move the hand pointer to the Time and press ENTER button 7 Use lt 4 and gt to choose digits employ A and V to increase or decrease number 8 Input the number you want according to your local time and press Enter to confirm them 22 mp JUNGZOW BA 6 BOR Grow with the sun 6 14 Output Energy Value Adjustment 1 In the default menu 230V 72A Lt I 230V TIA Lp 2 Press ENTER or gt to enter the general control State Run P ac 47 300kW menu 2007 01 25 10 15 25 c l og 3 Navigate the hand pointer to the Set param and Run inform Z5 Start Stop E Set param 4 Press ENTER button to confirm the password input Set param i Note that the default password is 1111 Password 1111 5 Navigate the hand pointer to the Sys param and c Sys param
3. menu contains some basic communication parameters of the inverter when connected to external monitoring device through RS485 serial communication protocol The inverter communication address can be in the first line The range of the address is 0 255 The serial communication baud rate can be adjusted through entering 0 1 and 2 in the second line O represents 9600 Baud 1 means 4800 Baud and 2 for 2400 Baud Note The address parameter is very important when your solar generation application contains many inverters and each inverter should have a unique address for serial communication 26 p JUNGZOW BA ve BOR Grow with the sun 7 Installation 7 1 7 2 This chapter gives installation instructions tor SG50K3 Checking for Shipping Damage The SG50K3 inverters are thoroughly checked and tested rigorously before they are shipped Even though they are delivered in a rugged heavy cardboard box the inverters can be damaged in shipping which typically is the shipping company s tault So you should check the inverter before installation Please inspect the inverter thoroughly after it is delivered If any damage is seen please immediately notify the shipping company If there is any question about potential shipping damage contact Sungrow Power Supply A photo of the damage may be helpful Do not accept unit if visibly damaged or note visible damage when signing shipping company receipt Please report the damage immediate
4. 0 3 Explanations of symbols used in the control menu Symbol General Symbols Press Enter to move to next menu There are more display menus below Press to move to next menu This menu indicates some information needed to be care about Specific Symbols The PV array The Inverter One phase of the grid This menu displays data General control menu Control the start stop inverter Communication parameters setting menu Energy adjustment menu General parameter menu te Time setting menu 11 V m x y gt _ O ED JUNG2OW 6 4 The Total Display Menu in the Fig 8 below IS given The total display menu E today 0000000 0kWh a V grid 000 0V V de 000 0V l grid 000 0A l dc 000 0A F grid 00 0Hz Temp 00 0C P ac 000 000kW y E total 0000000 0kWh C02 total 000 0kg E month 0000000 0kWh h total 00000h h totay 000min y an P today Power Curve 8 10 12 14 16 18 A E today hisgram 90 80 60 gt 6 8 10 12 14 16 18 Total Fault Nub 02 2007 01 12 10 12 18 Vde high 2007 01 14 11 12 18 Vde high ca Start Confirm I JUNG2OW A XI SG100K 3 On Grid Inverter 230V 72A L1 VEL 250V 230V 71A OJE 200A Py State Run 72A 230V L3 P ac 47 300kW 2007 01 25 10 15 25 Ta Run inform Fault record Start Sto
5. 0C P ac 000 000kW y E total 0000000 0kWh C02 total 000 0kg E month 0000000 0kWh Logged data h total 00000h h totay 000min y oP P today Power Curve i Daily output power Daily output energy 15 Grow with the sun 1 In the default menu 2 Press ENTER or P gt to enter the general control menu 3 Navigate the hand pointer to the Run inform ENTER 4 Press button to access the sub menus of running parameters 5 Use Y to move among these 4 menus to check parameters This level menus contains 4 separate menus 1 the real time data 2 the logged data 3 Daily output power diagram 4 Daily output energy diagram p JUNGZOW BA v6 BOR Grow with the sun Please refer to Table 0 3 and Table 0 4 for the explanations of displayed running data Table 0 3 Explanation of electrical parameters Data explanation name Output ac power K Data name explanation Temp Temperature within the C enclosure The Operation time of today Total hours of Operation time Reduced CO2 weight 1 The internal logged data includes total energy generated since the first start E total energy generated within the current month E month total running time in hour h total the total running time within today h today and the weight of the CO2 which can be avoided by using the green PV plant CO2 total 2 The real time data includes daily generated energ
6. 8 3 Features Forced air fan cooling RS485 Ethernet Optional GPRS Optional EMC EN61000 6 2 EN61000 6 4 36 JUNGZOW BH v6 BOR Grow with the sun 9 Appendix 9 1 Exclusion of Liability The content of these documents is periodically checked and revised when necessary please call us or check our website www sungrowpower com for the latest information However discrepancies cannot be excluded No guarantee is made for the completeness of these documents Please contact our company or distributors to get the latest version Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the following Improper or inappropriate use of the product Operating the product in an unintended environment Operating the product when ignoring relevant safety regulations in the deployment location lgnoring safety warnings and instructions contained in all documents relevant to the product 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 beyond allowed limit values In case of unforeseen calamity or force majeure 37 E JUNGZOW i Grow with the sun 9 2 Contact Us If you have any questions about or technical problems with the SG50K3 our hotline will be happy to assist you Please keep the following data when contacting Sungrow SU
7. Button The Emergency stop button will shutdown the inverter disconnect the AC contactor immediately when it is punched pressed down The inverter must be started up manually through LCD control menu if users want to recover the operation after the button is punched How to Restart the Inverter after Using the Emergency Stop Button Users must manually restart the inverter according to the following procedure when the operation of the SG50K3 is stopped by punching the emergency stop button 1 Turn the emergency stop button clockwise to release the inverter trom the stop state 2 Pertorm the stop command in the LCD menu 3 Perform the start command in the LCD menu 4 Then the inverter will restart LED Indicator LCD Display gt En The Emergency Stop Button SGS50K3 Fig O Emergency stop button positions mp SUNG Q W BA ve BOR Grow with the sun 6 Data Interface Users can get the running data and set parameters of SG50K3 from the LED indicators and LCD control panel see figure 6 POWER OPERATION FAULT LED Indicators LCD Fig 6 SG50K3 data interface 6 1 LED Indicators 3 big LED indicators are located in the front door of SG50K3 and 5 smaller LED indicators in the LCD panel These LED indicators help the users to quickly learn about the states of the SG50K3 inverter Check Table 6 1for their definitions Note that the big POWER OPERATION and FAULT LED indica
8. a Adj param press ENTER button Pro param Com param Language JE 6 Move the hand pointer to the Power adj and press Time ENTER button c Power adj Load default an 7 Use lt and bP to choose digits employ A and Y to increase or decrease number Power adj 000 KWH 8 Input real value you read from your electric meter and press Enter to confirm them ie n Note that the positive symbol can also be changed to negative symbo This generated power adjustment screen is useful in case the total power displayed by LCD E total has difference with reading value from the external power measuring device like an electrical meter The adjustable range is from 999 999 kWh Power adj value Real measured value E total reading value 23 T JUNGZOW BA 6 BOR Grow with the sun 6 15 Load Default Setting O 1 In the default menu 230V 72A Li 250V 230V 71A 2 Press ENTER or gt to enter the general control Le g 200A 230V 72A P menu State Run P ac 47 300kW 2007 01 25 10 15 25 Ls l TE 3 Navigate the hand pointer to the Set param and Run inform Mu n Puea press ENTER button Start Stop E Set param 4 Press ENTER button to confirm the password input Note that the default password is 1111 IN sel param Password 1111 5 Navigate the hand pointer to the Sys param
9. and c Sys param Adj param press ENTER button a Pro param Com param Language JE 6 Move the hand pointer to the Load default and Time press ENTER button Power adj CS Load default 7 Input correct password 1111 and press Enter Load default Password 0000 A 8 Press Enter to re confirm your load default command Are you sure to set it After load default all the logged data and fault will be cleared 24 ED JUNG2OW BH 2t BOR Grow with the sun 6 16 Displayed Real time Parameters Adjustment 230V 72A L1 250V 230V 71A L2 MRNK 72A 230V L3 1 In the default menu 2 Press ENTER or gt to enter the general control menu State Run P ac 47 300kW 2007 01 25 10 15 25 it Lad Run inform Fault record Start Stop c Set param 3 Navigate the hand pointer to the Set param and press ENTER button AN Set param Password 1111 4 Press ENTER button to confirm the password input Note that the default password is 1111 Sys param cs Adj param 5 Navigate the hand pointer to the Adj param and press ENTER button Pro param Com param Please input real value V L12 000V I L1 000A V L23 000V l L2 000A V L31 000V I L3 000A PF 0 000 adj confirm 6 Use lt and gt to choose digits emplo
10. set or adjusted a NO Pro param Set 13 p SUNG Q W BA 6 BOR Grow with the sun 6 6 The Default Display Menu The LCD is initializes upon energized of the SG50K3 A starting menu will be displayed during initialization which shows the manufacture name and the type of the inverter 1 The initialization menu Only appear once after JUNG2ZOW activation Ff B R SG100K 3 On Grid Inverter 2 The Default menu 230V 72A L1 250V A 230V 71A A Display basic running 200A 230V 12A L3 parameters State Run P ac 47 300kW 2007 01 25 10 15 25 ESN Once the LCD is initialized for about 2 3 minutes it will automatically changes to the default menu In the default menu the basic real time running values are displayed which includes DC current and DC voltage the AC phase current and AC line to neutral voltage the operation state the output AC power and the system time and date icy ee Fault type will be displayed in the State of the default menu when a fault occurs 14 ED JUNG2OW 6 7 Check Running Parameters BA xc BOR State Run P ac 47 300kW 2007 01 25 10 15 25 ts l Lad c Run inform Fault record Start Stop Set param 80 60 40 20 6 8 n 12 a 16 18 E today Histogram E today 0000000 0kWh V grid 000 0V V de 000 0V I grid 000 0A Ide 000 0A ae F grid 00 0Hz Temp 00
11. 1 11 S 000 100 0 1 3 0N WW uey 1 1e q pjnoys s m indul 5q OU JO UONO S SSOJD OY OJON d 0d 10 0 0 LNdNI 9a Aewe Ad uwgz o uey 1361 oq pinoys sam G8ySY y JO uono sS SSOJO BU 90N Fig 10 Simplified electrical connection diagram 31 p SUNG Q W BA ve BOR Grow with the sun Caution The wiring of the inverter s AC and DC cables must only be done with the DC and AC circuit breakers are in the off state Please follow the steps below e errryv Isolate the grid switch off the circuit breaker and secure it against accidental reactivation Connect the wires of the AC cable as follows through circuit breaker Grid L1 wire to the terminal marked L1 Grid L2 wire to the terminal marked L2 Grid L3 wire to the terminal marked L3 Grid Neutral wire to the terminal marked N Connect the DC terminals PV array DC wire to the inverter DC PV array DC wire to the inverter DC Connect the ground copper bar to the ground Connecting the RS485A B wires only if users have purchase our RS485 232 Converter and monitoring software Please make sure that all wires are firmly connected Caution Make sure tall the wires are firmly tightened a2 JNG2O0W BA 7 B ai Grow with the sun 7 5 Communication Installation Fig 11 shows the communication installation o
12. Electrical Connection Requirements cccceceeeeeneeneees 30 TAZ Wires CONNECCION eresi Tonnen E eN E EEEN 3 7 5 Communication Installation ccc cece cee cence eee eeeeeeeeeneeeneeeaeees 33 7 6 Start and close ita a cscwarontnaaaiondacconsatinda tes Vovannuossietatgedeuanadensanin ceaes 34 7 6 1 Start the INVerter c ccc cece een cccccccccccccccceuucuuccceceeennuceees 34 T JUNGZOW BA x6 BOR Grow with the sun TOD Close Ihe MMV CINCY osesdticacentececdue ities rira iiNet iie 34 O Technical DoT oes eases ersesauteene EE ERETIERS 35 8 1 Electrical Specifications sssscsssrrssssssssseserirrrrerssssrerrrrrrreesssssee 35 8 2 Mechanical Specifications cccccccccc cece eee eee eect ee eeeeeaeeneeneeeaees 35 o POCONO CS crt A A A E AA E E A A 36 T APD 6 2 a ea E A ee E E 37 Oo EXGIOSION or LAG OUMY aerea 37 9 2 Contact US ccc cece cece ccccccccccecccecuccccceeuccceeeuecceeeeuucceeeeuceeeenaes 38 p SUNG Q W BA ve BOR Grow with the sun 1 Symbols Explanation Please note the following explanation of the symbols used in this manual WARNING This indicates a condition that can cause fatal injury or death NOTICE This indicates a condition that will help to achieve optimal system operation Caution This indicates a condition that may cause minor or moderate injury T JUNGZOW BA ve BOR Grow with the sun 2 Introduction Thank you for buying the SG50K3 from Sungro
13. L1 22018 FOL 2 Press ENTER or gt to L3 enter the general control menu State Run P ac 47 300kW 2007 01 25 10 15 25 Cs 3 Navigate the hand pointer Run inform to the Start Stop and press Fault record ENTER button EE Start Stop Set param ae 4 Navigate the hand pointer to the Stop and press Stop ENTER button 5 Press ENTER button to confirm the stop command Stop Confirm Note To the inverter the emergency stop button has the same effect as the manual stop function They both disconnect the AC contactor and need manual Start in the LCD menu 19 ED JUNGLOW F Grow with the sun 6 11 Entering the Password SG50K3 parameters are password protected which means they can only be adjusted upon entry of a password To enter the password proceed as follows State Run P ac 47 300kW 2007 01 25 10 15 25 Cs Lad Run inform Fault record Start Stop ts Set param Set param Password 0000 Set param Password 1111 20 1 In the default menu 2 Press ENTER or P gt to enter the general control menu 3 Navigate the hand pointer to the Set param and press ENTER button 4 Use lt and P gt to choose digits employ A and Y to increase or decrease num ber 5 Press ENTER button to confirm the password input Note that the
14. NGZOW M e R Address Sungrow Power Supply Co ltd No 2 Tianhu Road Gao xin district Hefei Anhui 230088 PR China Tel 86 551 5327834 Fax 86 551 5327800 Website htto www sungrowpower com e ae F rg A ji ge Ulaanbaatar a sad Mongolia D ERAM Walnugy Ce Bishkek 3 a tem _ Baijing ll we E Yewguer sritagguang ae a T HERT jinan Se on FH ABT i Di Tig whan oh irea D AE Mem pr mig aioe i China 8 afim ai Neds a i Sheraton soo 4 Jis ge maT Amritsar 1 ee a ee UT a ae pate Re Cheggdu bh Sabor d ea o ji j we ah nae B i p RA ait team m aeti 5 ant Leama o Hangzhou ipur ga Ohangong e sha Bam Jaipur g 7 hang Nanchang 447 a Kanpur RRI alan winds ae t A ee Kunming Guiyang Bhopal pecan Vadodara Nagpur Ae ei bai hr Hyderabad Pe 5 jet 38
15. default password is 1111 Grow with the sun ED JUNGLOW F 6 12 Change Display Language 230V 72A L1 oy 250V 230V 71A e i 200A 230V 72A L3 State Run P ac 47 300kW 2007 01 25 10 15 25 LE l Lail Run inform _ se iy Fault record Start Stop Set param N Sel param Password 1111 le Sys param x Adj param Pro param Com param le Language a Time Power adj Load default Language 0 bats 1 EN 2 CH 1 In the default menu 2 Press ENTER or gt to enter the general control menu 3 Navigate the hand pointer to the Set param and press ENTER button 4 Press ENTER button to confirm the password input Note that the default password is 1111 5 Navigate the hand pointer to the Sys param and press ENTER button 6 Move the hand pointer to the Language and press ENTER button 7 Use A or Y to change number between O 1 and 2 O represents Spanish and 1 means English and 2 for Chinese 8 Choose the number you want and press Enter to contirm your choice 21 BA 7c B iR Grow with the sun ED JUNG2OW 6 13 Change Date and Time 230V 72A L1 250V 230V 71A i 200A 230V 72A L3 State Run P ac 47 300kW 2007 01 25 10 15 25 L Lad Run inform 5 Fault record Start Stop E Set param
16. f the SG50K3 with the PC by RS485 serial communication port RS485A D RS485B D RS485 232 Converter SG50K3 PC RS232 Port Fig 11 Communication port configuration Fig 12 RS485 RS232 converter 33 JUNGZOW BH v6 BOR Grow with the sun 7 6 Start and close 7 6 1 Start the Inverter To turn on the inverter please follow the steps below 1 Switch on the DC side circuit breaker 2 Switch on the AC side breaker 3 The inverter will to check whether that voltage impedance and frequency parameters are within operating range 4 If the parameters check is correct then the LCD will display the normal working screen 5 Then the inverter will export to the grid and the green Power LED will continuously lit provided there is enough PV power 7 6 2 Close the Inverter 1 If users want to shut down the inverter please refer to stop command in the LCD menu in chapter 6 2 If users want to shut down the inverter immediately in an emergency please press down the emergency stop button 34 JUNGZOW BA v6 BR Grow with the sun 8 Technical Data 8 1 Electrical Specifications E Input Data E Output Data Nominal AC output power 50kW European Efficiency THD of Output Current 8 2 Mechanical Specifications Dimensions W x H x D 820x1964 x646 mm Weight 700 kg Ingress Class IP20 Cindoor Operating Temperature 25 C 55C 35 JUNGZOW BH v6 BOR Grow with the sun
17. l Explanation of the LCD Menu ssssssssssssssssrrrrrsesssses 13 6 6 The Default Display Menu c cece cece eee eee ea eee eeaeeaeenteneeneens 14 6 7 Check Running Parameters sxcqcvertscssacteesacecdicseceserenaaeianeyaewees 15 6 8 Check Faull ReECOrOS serret ostaneen EARE NEATE 17 O O Te Ove saraa E E E E AEA 18 6 10 Stop tne lah l aeee EEE 19 6 11 Entering the Password fee ae ere en nese eae nero teen eee 20 6 12 Change Display Language cccc cece cee ne ence eee ee eens eeneeneeneees 21 Oe Change Dale ana TIME ccc ess ese riene tacos orate ee 22 6 14 Output Energy Value Adjustment cccccccec cece eee eee tees eeeeeaees 23 6 l9 Logd Detauli Seling arsrsireoner erini ninin epe EEES 24 6 16 Displayed Real time Parameters AdjUStMent cecc eee eens 25 6 17 Communication Parameters Setting cccccceseeeeeeeeeeeeaeeenas 26 F WSU AON OW ir saree EE vac oad eee aes E E E cute eemsaces 27 7 1 Checking for Shipping Damage cccceccecc esses ee eeaeeaeeneeneenes 27 7 2 Basic Installation Requirements cccecc eee eee ec sees ene eeseeasenseeas 27 73 Mechanical MOUNTING caccevencrpescedstiouteoncsenesenstadacusmssedeteeb inne 28 7 3 1 Safety Mounting INStrUCTIONS ccc cece eee ec eee eneeeeeeeeeaeeas 28 7 3 2 Device Dimensions and Weight ccccceseeeseeseeaeeneeeas 29 FA Electrical Connection fat ecanpacacencessa keswetien dieren idro E E iee NEENU 30 7 4 1
18. ly to the shipping company Do not remove the unit from packaging Basic Installation Requirements The IP level of SG50K3 is IP20 so it can only be installed indoors A list of these requirements is shown below It is advised not to install the inverter in living quarters since the inverter may produce some operating noise lt 40 dB Avoid installing the inverter in a location subject to vibrations The LED and display should always be legible for users The ambient temperature should remain from 25 C to 55 C auxiliary heater needed It is important to have air freely circulating around the inverter therefore keep the area within 30 centimeters of the inverter tree from obstacles The inverter should be mounted in a well ventilated area Avoid mounting the inverter in a dusty area 27 p SUNG Q W BA ve BOR Grow with the sun 7 3 Mechanical Mounting 7 3 1 Safety Mounting Instructions As with any electrical system touching live components can be hazardous to life and limb This device contains DC voltage of up to 880V and the grid voltage up to 450 V WARNING Only a qualified person can work on this equipment This work is only permissible if the AC and DC power supplies are safely disconnected from the SG50K3 WARNING Before any maintenance always wait for approx 10 minutes so that the capacitors in the SG50K3 can discharge Only then may the cover be opened 28 p JUNGZOW BA ve BOR Gro
19. monitoring p SUNG Q W BA v6 BOR Grow with the sun 5 2 Modes Transition When energized the inverter switches states from different modes as pictured below When deactivated the inverter return to the operating mode Stop Fault resolved for 5 minutes Fault occurs 1 Release the emergency stop button 2 Start the inverter through LCD menu Vpv gt 470V for 3 minutes Stop the inverter through LCD Press down the emergency stop button Ipv 0A for 1 minutes Fig 4 Transition of operation states Vpv is the DC input voltage Ppv is the DC input power The states displayed in the LCD menu are explained in the table below Table 5 1 State explanations of inverter State RUN e inverter is In operation and output S ea a e operation is stopped by stop command tartup e inverter is under activation tand by e operation is ceased by insutticient PV oower ault type A Tault is occurred and not solveo the characters Fault type itself will not be displayed during a fault condition but the real fault type will be displayed like Wdc high or Vac low etc The Com flit shows that there is a fault between LCD and DSP which also means that users can not check or set parameters through LCD control menu during this fault But this fault will not stop the inverter which is different from Fault condition mp JUNGZOW BA 6 BOR Grow with the sun 5 3 Emergency Stop
20. nts the AC and DC main switches are closed The inverter will auto start If the input voltage is below the start voltage 470V the inverter keeps in Startup state If the input voltage exceeds 470V and holds the value for 1 minute the inverter is ready for operation it begins feeding power to the grid and the state changes from Start up to Run Stand by Standby mode is entered for insufficient input power Pov 0 for 3 minutes at stand by mode the inverter will wait until the DC voltage recovers to 470V for 3 minutes Run After being energized the inverter tracks the PV arrays maximum power point MPP and converts the DC power to AC power Fault If a fault occurs during operation the SG50K3 will automatically stop operation disconnect the AC contactor and the display the fault type in the LCD panel with the Fault LED burns Once the fault is removed for 5 minutes the SG50K3 will automatically resume running Stop The SG50K3 will stop operation by manually stopping the inverter through LCD menu or pressing down the Emergency Stop Button this condition needs manual restart through LCD menu During the Stop mode the SG50K3 will block the driving signals that control the switching IGBT and disconnect the SG50K3 from the grid by switching off the AC contactor Note that the auxiliary power supply for the control circuits of SG50K3 are drawn from the AC side so SG50K3 can perform 24 hour
21. p Set param i Start Stop Confirm AN Stop gt A i Sys param iB Set param Adj param Password 0000 Pro param Com param i Language Time Power adj __ Load defautt Please input real value V L12 000V I L1 000A V L23 000V I L2 000A V L31 000V I L3 000A PF 0 000 adj confirm NO Pro param Set Com param N o Address 0 Baud 0 0 9600 1 4800 2 2400 Language ty 0 SP 1 EN 2 CH Time Date 07 04 12 Time 14 28 30 2 Power adj 000 KWH os Load default Password 0000 A Fig 8 Total display menu tree 12 p JUNGZOW BA ve BOR Grow with the sun 6 5 Additional Explanation of the LCD Menu A Error Password Are you sure to set it A Invalid Set Set Complete Start Confirm Please waiting Set param t firm Stop Confirm Password 0000 Fig 9 Prompting message menu Fig 9 shows all the prompting messages not included in the total display menu but will be displayed in the LCD Note that the Pro param menu contains no valid setting it is kept for future protection parameters adjustment 1 Select Pro param 2 Press ENTER Sys param JE Adj param es Pro param Com param 3 No protection parameters can be
22. ps connecting during the connection process may produce dangerous voltages WARNING Make sure that the DC input voltage never exceeds 880V Higher input voltages will damage the SG50K3 and will lead to the loss of any and all warranty rights JUNG2O0W BAe B R Grow with the sun 4 General Descriptions of SG50K3 4 1 Circuit Description Fig 2 shows the main circuit of SG50K3 a transformer grid connected inverter An IGBT full bridge converts the DC power to AC voltage and current The AC power is then fed to the grid after being processed by a filter and a transformer SG50K3 COP Inverter m DO L moui Transformer Breaker Contactor Fig 2 circuit diagram of SG50K3 8 7 z ED WGOW CETE Grow with the sur 4 2 The Wiring Interface Ai ON Fig 3 The wiring interface of SG50K3 Table4 1 Terminal descriptions Terminal No Description 1 DC INPUT Connected to the PV array GND ground copper bar 3 4 RS485 A B serial communication port p JUNGZOW BA ve BOR Grow with the sun 5 Operation SG50K3 inverter is a tully automated grid connected solar inverter with friendly user interface The details of operation are as follows 5 1 Operation Modes The modes displayed in the LCD interface include Start up Stand by Run Fault and Stop Their explanations are given below Start up Once the AC and DC connections are OK all the parameters meet requireme
23. tors share the same meaning with small POWER RUN and FAULT indicators Table 6 1 Meaning of LED indicators LED Name Meaning POWER The indication of control board s power supply RUN Inverter is in grid mode and working normally STOP When the SG50K3 stops operation FAULT There is a fault in the power system Communication indication between inverter and PC mp SUNG Q W BA 2 BOR Grow with the sun 6 2 LCD Control Panel The LCD control panel is mounted on the SG50K3 enclosure at eye level 6 buttons right next to the LCD are used to check or set parameters in the LCD control menu see Figure 7 4 line LCD Buttons Fig 7 LCD panel Table 6 2 Definitions of buttons ESC cancels ends the present function answers questions with No returns to the previous menu moves up to the previous line increases the present value moves to the right value moves to the left value selects a function from the menu moves down fo the next line decreases the present value selects a value contirms changes answers questions with Yes The background illumination of the LCD is activated by pressing any button on the panel and will automatically be deactivated 2 minutes later to save power 10 p JUNGZOW BA v6 BOR Grow with the sun 6 3 Explanation of the Display Symbols The SG50K3 display has four lines Multiple display symbols are used which are explained in the following Table 0 3 Table
24. w We hope that the device will meet with your satisfaction when you use it with your PV plant system 2 1 Grid Connected PV inverter A SG50K3 grid connected PV system is shown in Fig l SG50K3 transforms the direct current generated by the PV array into stable alternating current and output to the utility grid gt t t a e Meter Utility Grid PV Array SG50K3 Fig 1 Grid connected Inverter for PV power application 2 2 How to use this manual The purpose of this manual is to provide users with detailed product information and instructions for the use of the SG50K3 grid tied PV inverter mp JUNGZOW BA ve BOR Grow with the sun 3 Safety Instructions Please read the instructions in this manual carefully before installing and operating the SG50K3 Always disconnect the inverter trom the grid first ALL CONNECTIONS SHOULD ONLY BE UNDERTAKEN BY QUALIFIED PERSONNEL All electrical installations shall be done in accordance with local and national electrical codes Please contact your authorized system installer if any maintenance is required Connection of the SG50K3 to the utility grid must be done only after receiving prior approval from the utility company and performed by qualified personnel Completely disconnect the output from the PV array before connecting to the SG50K3 or use other methods to prevent electrical shock hazards This is important because if the PV array kee
25. w with the sun 7 3 2 Device Dimensions and Weight The external dimensions and weight of the SG50K3 is in fig 9 700KG Fig 9 Dimensions of SG50K3 NOTICE The ambient temperature should be within 25 C and 55 C Caution Some parts of the SG50K3 can reach temperature of over 80 C Keep a suitable distance from flammable materials WARNING Never install the SG50K3 in areas that contain explosive atmospheres battery rooms fuel storage rooms etc 29 o SUNGI QW Grow with the sun 7 4 Electrical Connection 7 4 1 Electrical Connection Requirements Grid 230V AC The SG50K3 is designed for 400V grid three phase The voltage should be within 310V to 450V and the frequency should be the frequency should be 47 51 5 57 61 5Hz PV array limit ground The inverter must be grounded in compliance with local satety codes using appropriately sized protective conductors Notice IEJ All electrical installations must comply with all local and national electrical codes WARNING Make sure that the DC input voltage never exceeds 880V Higher input voltages will damage the SG50K3 30 D S S gt 2 ED JUNG2OW 7 4 2 Wires connection The complete wiring for a SG50K3 is shown schematically in the Fig 10 PUD J9 9W 9199 5 OAU UWOS uey 1961 q pjnoyus Salim punoJ6 pue nd no by y JO uono s SSOJO y 0 eo Nd LNC i N 11 z
26. which includes the fault name and occurred time Note that one screen can only display 7 fault records press Y button to move to next fault records if necessary Table 0 5 Explanations of faults Dsp tlt The control DSP malfunctions lom flt The IPM power module malfunctions AC side contactor malfunctions Ttp high Temperature of the main transformer is too high 17 DD JUNGZOW GEE 6 9 Start the Inverter Grow with the sun 230V 72A L 1 230V 71A L2 L3 State Run P ac 47 300kW 2007 01 25 10 15 25 ts Run inform Fault record tS Start Stop Set param em Start Stop Start Confirm Note Normally the inverter will auto start when specifications are met or faults are removed The start function of the control menu is provided in case the 1 In the default menu 2 Press ENTER or P gt to enter the general control menu 3 Navigate the hand pointer to the Start Stop and press ENTER button 4 Navigate the hand pointer to the Start and press ENTER button 5 Press ENTER button to confirm the start command inverter needs a restart after being stopped by pressing down the emergency stop button or perform manual stop in the LCD menu p JUNGZOW BA 76 BOR Grow with the sun 6 10 Stop the Inverter 1 In the default menu 230V 72A
27. y A and Y to increase or decrease number 8 Input real value you read from your electric meter and press Enter to confirm them The Adj param menu is designed to adjust the difference between the LCD displayed value and the users measured real value and perform the adjustment of displayed real data V L12 V L23 V L31 are the user measured three phase line to line voltage I L1 1 L2 L3 are the user measured three phase current PF is measured power factor 29 T JUNGZOW BA x6 BOR Grow with the sun 6 17 Communication Parameters Setting 1 In the default menu 230V 72A Li o BN TA l2 2 Press ENTER or gt to enter the general control menu 200A 230V 72A 3 State Run P ac 47 300kW 2007 01 25 10 15 25 E ree og 3 Navigate the hand pointer to the Set param and press uu n Fault record ENTER button Start Stop ts Set param 4 Press ENTER button to confirm the password input Set param Note that the default password is 1111 Password 1117 5 Navigate the hand pointer to the Com param and press Sys param Adj param ENTE R button a Pro param Cs Com param 6 Use lt and gt to choose digits employ A and Y to Com param increase or decrease number Address 001 Baud 0 8 Input the address and baud rate you want 0 9600 1 4800 2 2400 Com param
28. y E today the grid voltage V grid the grid frequency F grid the grid current I grid the DC voltage V grid DC current I grid the inverter s inside temperature Temp and today s running minutes h today 3 The P today power curve diagram shows the power generated from 6 am to 18 pm in a single day the data are updated every 3 75 seconds and the total diagram data will be cleared at the beginning of a new day The P axis is marked by the percentage of the rated power 50KW 4 The E today histogram diagram shows the energy generated from 6 am to 18 pm in a single day the data is updated every second and the length of the block is 1 hour The total diagram data will be cleared at the beginning of a new day The E axis is marked by the percentage of the 50KWH p JUNGZOW BA ve BOR Grow with the sun 6 8 Check Fault Records 1 In the default menu 230V fea L1 n uu n gg 250V A 230V 71A e 2 Press ENTER Or gt to 200A Wars 230V 12A mL 3 enter the general control menu State Run P ac 47 300kW 2007 01 25 10 15 25 ts nan 3 Navigate the hand pointer to the Fault record and press E Fault record ENTER button Start Stop Set param Total Fault Nub 02 4 Press Y button to move to 2007 01 12 10 12 18 Vdc high 2007 01 14 11 12 18 Vdc high left fault records The Fault record can log the latest 20 fault records
Download Pdf Manuals
Related Search