JSI-G2.5K PVGrid-Connected Inverter User Manual
Contents
1. Fig 2 shows the main circuit of JSI G2 5K a transformerless grid connected inverter The DC DC boost stage increased the input DC voltage the 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 JSI G1 5K JSI G2 5K DC DC Full Brid Fig 2 circuit diagram of JSI G2 5K 4 2 Features of JSI G2 5K l The following are the Technical features of JSI G2 5K The fifth generation Intelligent Power Module from Mitsubishi improves the system efficiency 2 MPPT auto optimizing technique makes the most of the PV generation capacity De Simple parameters settings Multi communication interface High reliability due to complete protection functions Wide DC input voltage range up to 450V DC NYDN Multilingual LCD display 4 3 The Wiring Interface RS485 GRID Ground RS485A RS485B Grid N Grid L Fig 3 The wiring interface of JSI G2 5K Table4 1 Terminal descriptions Description RS485 A pin 1 RS485 B pin 3 DC DC input terminal DC DC input terminal Connected to the grid Red wire connected to the GRID L pin 1 Black wire connected to the GRID N pin3 Yellow green wire connected to the ground 5 Operation Description Sa Operation Modes This chapter illustrates the operation modes of the JSI G2 5K Stand by mode Standby mode is entered due to fault or insufficient input power a2. JALP Q WER JSI G2 5K PV Grid Connected Inverter User Manual JALPOWER Corporation Ltd Table of contents yd OOS Epl AnA ON ppccinnnncattcwnetyanattanseaueendogaunsbaneduidwus iene E 1 X oduUCio meaa a a S OS 2 2 Grd Connected PV Inverter Su m unu NE awa apapuna a ahass 2 2 2 HOW tO Use MiS Manual uu u nasi u qa EEEO 2 Js WaAlely INSU IICIIONS eorn a EE TEE ue nai ARS 3 A General Descriptions Ol S1 G25K siesena Ea 4 4 L Circuit Descriptio eessen na E A EERE wadiaeeemaatens 4 AD Features Ol JISE K noen n NE N 4 AD Vine Winnie Inter xu a maa ukana ku skua aoe eee wees 5 5 COBOrOali6ONDODESCIIpDI IIS u nisen aa a eed ceva da ykappawpupakonssa hapik u maq ae 6 Sule OPEO MOIES uuu pa a a a 6 J2 COMMISSIONE L L u uu E E EOE 6 39 REdured Grid Condi ons srera A NN 7 6 Monitore qrd D Xisplagysuu uuuuy a aku u E LE 8 Gal Basic COMIMUNICAIONS sore u u uuu Xu ukpa st sassa amas 8 O PC AV tse ri csesncrs ees a E eeu a Os 9 RCDD p esac cetse ecarceh ees unuta oe suspa 10 OTe NAS lla Onu kiya uui aasan aude nee pamiceaue 22 7 1 Checking for Shipping Damage 22 E2 Mechanical Mounting uuu E Qapaq bapak nai aie Steel 23 7 2 1 Safety Mounting Instructions 23 7 2 2 Device Dimensions and Wei ht 24 Teano MOUNUNS JREGUIFEMICINS yincn cova u au pi kim ssuaa z nu kuquta yasa 25 ko Electrical CONN
3. The ambient temperature should remain from 20 C to 40 C Itis important to have air freely circulating around the inverter therefore keep the area within 30 centimeters of the inverter free from obstacles The inverter should be mounted in a well ventilated area Avoid mounting the inverter in a dusty area 22 7 2 Mechanical Mounting 7 2 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 450V and the grid voltage up to 260 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 JSI G2 5K WARNING Before any maintenance always wait for approx 10 minutes so that the capacitors in the JSI G2 5K can discharge Only then may the cover be opened 23 7 2 2 Device Dimensions and Weight The external dimensions and weight of the JSI G2 5K is in fig 10 11 3KG Fig 10 Dimensions and weight of JSI G2 5K NOTICE The ambient temperature should be within 20 C and 40 C Caution Some parts of the JSI G2 5K can reach temperature of over 80 C Keep a suitable distance from flammable materials WARNING Never install the JSI G2 5K in areas that contain explosive atmospheres battery rooms fuel storage rooms etc 24 7 2 3 Mounting Requirements Mounting Place The J
4. hotline will be happy to assist you Please keep the following data when contacting JINLPOWER Address Jalpower Corporation Ltd USA 107 East Meda Ave Glendora CA9891741 USA Tel 1 626 9h 34 2054 Email sales malpower corm Taiwan 2E No 4 Aly 1 Ln 225 Sec 1 Neihu Rd Neihu Dist Taipei City 114 Taiwan ROC Tel 886 2 265937 37 Email Supportenjalpower com China Room 2504 No 18 Shun j Road Shanghai 200083 Ching Tel 8B 21 54259997 Ernail sales mlalpower corm 34
5. KEEEEE l L ESC E today 000 0KWH P ac 0000W ENTER P 2006 11 22 11 44 State State cha ged after stop operation 16 gt Explanation This command is helpful when users want to stop the operation of the inverter The state shown in the default display menu will change after stop operation The general parameters selecting menu Select number by ENTER gt Change value by ESC _ ENTER ENTER gt L ESC General parameters selecting menu gt Explanation Users must input the password before setting parameters The default password is 1111 This screen contains Sys param gt Run param Pro param and Com param Sys param contains basic running parameters of the Inverter Run param contains nothing Pro param contains the adjustable system protection parameters Com param contains basic communication parameters of the inverter 17 The specific parameters selecting menu ENTER gt ESC ESC Specific parameters selecting menu gt Explanation The adjustable parameters of Sys param Includes display language Language gt display time Time generated energy display value Power adj and load default task load default The firmware version willonly be helpful for the maintenance personnel and useless to users The display l
6. 1 nu ur GODT 6 314 GOTJo 9013 nuow Avjdsip ou E Start up menu Explanation This screen displays the type of the inverter Note that this screen will only appear once after start After about 7 seconds of this screen the LCD display will automatically change to the default display menu The default display menu ESC Y Default display menu Explanation This menu includes 2 separate screens The first screen includes parameters of E today and P ac E today indicates the daily output energy generated by JSI G2 5K in the unit of KWH P ac indicates the real time output power of JSI G2 5K in the unit of KW The second screen includes parameters of date time and state Date Time display the current time and can be adjusted The State shows the inverter s working state according to table 6 2 Table 6 2 State of the inverter The inverter in normal function operation Stand by The inverter in stand by state The inverter stops working Fault of LCD inverter communication channel Note To quickly access the system running parameters press JESC V when in any state of the above 2 screens as shown in the figure below 12 Shortly press the ESC V key quickly enter the real time parameters display menu Shortly press the ESC V key to move to next screens Default display menu Real time parameters menu The parameters displ
7. CCION 5s uyu u eee ea 5aySSaus ans 26 7 3 1 Electrical Connection Requiements 26 Taek WAKES CONN CCUOMs idence dnoieaestdhcessead NA 2 7 4 Communication Installation esseere r n esa 29 Bo par aI CC LOS a a nuance amuses uate race 30 Ti Dede St P UMS AN VEEL uy yu A E 30 72522 Close Ihe IBvOr GE spa aaa kiuqq a aayopuupaiahu qun A 30 S lechnical Dal uu uyu asia yayta khisuy AT ansa OAA 31 S21 pieeinicalSpeeiti aligpbSu uu y u S asuy awa a au nu rete 31 6 2 Mechanical Spec liCations sera teas a 31 Bo CAME CS Yu u otis ata Speers ea sa Con re tae ars en ene 32 SR 6 9 5 I C cuyas sn umma Ep nakay apina sa aasma ee a en 33 9 1 Exclusion OF Lia DUI serein pnan a EEEE ESE sateen 33 ED COMAC US eun ae TE T E T AE E 34 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 2 Introduction Thank you for buying the JSI G2 5K from the JALPOWER 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 JSI G2 5K grid connected PV system is shown in Fig l JSI G2 5K transforms the direct current generated by the PV arr
8. Operation time H CO2 total Reduced CO2 weight 2006 11 22 11 44 The current date time on Fault record menu Fault occurred Fault type and Fault record time parameter number ENTER gt ESC Y Ay ESC I Parameters display amp set menu gt Explanation The Fault record menu displays the latest 20 fault records which Includes fault type see table 6 5 fault occurred time fault parameter and fault record number within 20 Note that the fault record number is created in the order of fault occurred time the latest fault record number is always 01 the oldest fault record number is always 20 suppose there is at least 20 fault records etc Table6 5 Fault type with simple explanation Vac low The start and stop menu ESC ENTER gt i i Parameters display ESC amp set menu gt Explanation The Start Stop menu can control the start and stop state of the inverter 15 Start process through LCD iz RSC E today 000 0KWH P ac OOOOW 2006 11 22 11 44 State State changed after start operation gt Explanation This command is needed to restart the system after a LCD stop operation by user The state shown in the default display menu will change after start operation The state of the inverter won t change if the inverter is already running when perform this command Stop process through LCD
9. SI G2 5K has a relatively high weight of 11 3kg Please keep this in mind when selecting the place where and how to mount the JSI G2 5K NOTICE The ambient temperature should be within 20 C and 40 C The JSI G2 5K should be installed in a place where it is not exposed to direct sunlight WARNING Some parts of the JSI G2 5K can reach temperature over 80 C Keep a suitable distance to flammable materials WARNING Never install the JSI G2 5K in areas that likely contain explosive atmospheres battery rooms fuel storage rooms etc NOTICE Since the AC and DC connections are wired to the breakers and or junction box only there 1s no need to open the inverter enclosure during installation 25 7 3 Electrical Connection 7 3 1 Electrical Connection Requirements Grid 230V AC The JSI G2 5K is designed for 230V grid single phase The voltage should be within 180V to 260V 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 safety codes using appropriately sized protective conductors Notice Ic All electrical installations must comply with all local and national electrical codes WARNING Make sure that the DC input voltage never exceeds 450V Higher input voltages will damage the JSI G2 5K 26 7 3 2 Wires connection The complete wiring for a JSI G2 5K is shown schematically in th
10. TX RX RS485 232 Converter JSI G2 5K PC RS232 Port Fig 13 Communication network Fig 14 RS485 RS232 converter 29 7 5 Start and close 7 5 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 willto 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 willexport to the grid and the green Power LED will continuously lit provided there is enough PV power 7 5 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 first switch off the AC side breaker then switch off the DC side breaker incorrect switch off order may cause danger to the personnel and damage to the inverter 30 Technical Data 8 1 Electrical Specifications E Input Data Max PV Power Max Number of Input Strings Max Input Current MPP Voltage Range Maximum DC Voltage E Output Data Nominal AC output power AC Voltage Range AC Frequency Range Power Factor Peak Efficiency European Efficiency Internal consumption during stand by THD of Output Current 8 2 Mechanical Specifications Dimensions W x H x D Weight Ingre
11. Y2 ENTER Table6 1 LED descriptions RUN LED JSI G2 5K is working JSI G2 5K is not working FAULT LED A fault has occurred No fault has occurred 6 3 LCD Display The display board is equipped with two line LCD Users can get basic information from the LCD display GRID CONNECTED INVERTER O O O RUN FAULT ESC W ENTERA Fig 8 LCD display and key board E Key functions explanation There are 2 keys In the LCD board ESC Y key and ENTER P key ESC Y key when you press the ESC WY key less than 2 seconds this key performs the W function which is used to move the arrow up and down in the screen or increase decrease number denoted by ESC Y The ESC V key will perform ESC function if it is pressed longer than 2 seconds which is used as Return finish function denoted by ESC Y ENTER key when you press the ENTER key less than 2 seconds this key performs function which is used to move the arrow left or right in the screen denoted by ENTER P The ENTER key will perform ENTER function if it is pressed longer than 2 seconds which is used to select menu item and confirm changes denoted by ENTER gt E Activation of the background illumination The background illumination is activated by slightly press the any key The background illumination is automatically deactivated after 1 minute to Save power 90
12. anguage adjustment menu Change number by ESC V 4 ENTER gt 4 ESC v ESC Y ENTER gt 4 ENTER gt Display language has changed after setting gt Explanation Users can set the LCD display language in this screen there are 2 languages can be selected CH represents Chinese EN represents English The display time adjustment menu Select number by ENTER gt Change number by ESC ESC ESC ENTER Display time has changed after setting id ENTER gt gt Explanation The date format is year month date the time format is hour minute second Note that the hour display is in 24 hours type The firmware version menu not open to users 4 4 ENLEK P ESC The firmware version can not be adjusted by users gt Explanation This firmware version display screen is only provided to maintenance personnel and cannot be adjusted by users Note the first two digits 20 of year like 2006 cannot be changed and the second 45 will not be displayed in the menu The displayed generated energy adjustment menu Select number by ENTER gt Change value by ESC e ESC Adjustable range ESC Vy ENTER y 999 to 999 ENTER gt After adjustment Before adiustment E total 19 gt Explanation This generated power adjustment screen is useful in case the total powe
13. ay set menu Parameters display Default amp set menu display menu Explanation This menu contains Running information Run inform fault record Fault record start stop control of the inverter Start Stop parameters setting Set param Users can press ESC V key to make the arrow pointed to selected menu name Note that users can always quit to the upper level menu by press PESC Y key 13 Current inform menu Run inform menu Real time parameters menu ENTER gt ENTER gt A ESC ESC General Parameters men History parameters menu Parameters display amp set menu ESC ENTER gt Explanation The Run inform menu contains the Total inform data are explained in the table 6 3 and table 6 4 Table6 3 Electrical real time data Current inform bgrid Output AC current A V W Energy generated today KWH Energy generated this month The whole generated Energy A H V _ W KWH K 14 ESC Y ESC and The Total inform includes history logged data such as totally generated energy E total monthly generated energy E month total running hour h total and reduced CO2 weight CO2 total The Current inform includes real time system data All the Table6 4 Non electrical real time data Total inform Total hours of
14. ay into stable alternating current and output to the utility grid PV Arra _ Utility Grid JSI G2 5K Fig l 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 JSI G2 5K grid tied PV inverter 3 Safety Instructions Please read the instructions in this manual carefully before installing and operating the JSI G2 5K Always disconnect the inverter from the grid first ALL CONNECTIONS SHOULD ONLY BEUNDERTAKEN BY QUALIFIED PERSONNEL Allelectrical 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 JSI G2 5K 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 JSI G2 5K or use other methods to prevent electrical shock hazards This is important because if the PV array keeps connecting during the connection process may produce dangerous voltages WARNING Make sure that the DC input voltage never exceeds 450V Higher input voltages will damage the JSI G2 5K and willlead to the loss of any and all warranty rights 4 General Descriptions of JSI G2 5K 4 1 Circuit Description
15. e Fig 11 Breaker Rating gt 260V 20A JSI G2 5K terminals 2 poles AC brekaer L Grid L red wire gt s 1 rid N black wire B gt Ground yellow green wire Grid Ground Ne This 2 poles DC breaker PV array rating gt 450V 20A Fig 11 Simplified electrical connection diagram Ground wire yellow green wire lt Single phase grid L red wire Single phase grid N black wire Fig 12 attached wires for JSI G2 5K 27 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 Fig 11 to connect the wires Connect the wires of the DC cable as follows lt JSI G2 5K DC wire to the PV array A Jsr g2sg DC wire to the PV array Note there are 2 input ports of PV array we recommend users at least connect 2 channels with each channel maximum current no more than 10A and total current no more than 20A Connect the wires of the AC cable as follows lt JSI G2 5K s L wire to the grid P lt JSI G2 5K s N wire to the grid N lt JSI G2 5K GND wire to the ground Caution Make sure tall the wires are firmly tightened 28 7 4 Communication Installation Fig 13 shows the communication installation of the JSI G2 5K with the PC by RS485 serial communication port RS485A gt RS485B s
16. frequency must be 47 51 5Hz 57 61 5Hz check table 5 1 for the adjustable frequency range Once the grid frequency exceeds this range the JSI G2 5K is disconnected from the grid with 0 2s Table5 1 protection parameters range Simple explanation Adjustable range Default value maximum AC voltage 240V 260V 250V minimum AC voltage 180V 200V 180V maximum AC frequency 50 5Hz 51 5Hz Fgrid min minimum AC frequency 47 0Hz 49 5Hz 57 0Hz 59 5Hz 6 Monitoring and Display 6 1 Basic Communications The inverter normally operates automatically without user interaction and any maintenance To enable our customers to gain a thorough comprehension about the operation of the inverter we have provided various data collection approaches to monitor system data Data logger Inverter Data Logger Fig 4 data logger collects data through RS485 bus PC Inverter RS485 RS232 Fig 5 PC collects data through RS485 bus Data logger PC Inverter Daneel RS485 RS232 SS Converter Fig 6 data logger amp pc collects data through RS485 bus 6 2 LED Indicators The inverter operates automatically without the need for user interaction or maintenance There are two LEDs and two keys at the panel of the inverter From the leds we can get the basic work state of the JSI G2 5K GRID CONNECTED INVERTER O O O RUN FAULT ESC W ENTER Fig 7 LED amp KEY and LCD Display Green LED RUN Red LED FAULT KEY1 ESC V KE
17. iple inverters The baud rate parameter decides the baud rate between the inverter and upper machine Four alternative values can be selected 1200 2400 4800 and 9600 bps 21 7 Installation This chapter gives installation instructions for JSI G2 5K 7 1 Checking for Shipping Damage The JSI G2 5K 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 fault 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 JALPOWER 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 immediately to the shipping company Do not remove the unit from packaging 7 2 Basic Installation Requirements The IP level of JSI G2 5K is IP41 so it can only be installed indoors A list of these requirements is shown below Itis 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
18. r displayed by LCD has difference with reading value from the external power measuring device like an electrical meter The adjustable range is from 999 999 kWh The load default menu ENTER gt L ENLEK gt ENTER gt All the internal logged data Are cleared after load default gt Explanation Users can clear the logged data by using Load fault After inputting the correct password 1111 and confirm this command J ENTER P After the appearing of Set Complete screen all the logged parameters are cleared Note that the load default operation is irreversible 20 The protection parameters adjustment menu Select number by ENTER gt Change value by ESC ENTER gt gt Explanation Users can set the maximum allowable grid voltage gt the minimum allowable grid voltage the maximum allowable grid frequency gt and the minimum allowable grid frequency please check table 5 1 Select number by ENTER gt Change value by ESC Address range 0 255 Baud rate value 1200 2400 4800 9600 y ENIEK P J ESC ESC Y y ENTER ENTER gt gt Explanation 2 communication parameters can be altered in this menu the address and the baud rate The Address parameter is useful to separate the current inverter form other inverters to avoid address violation when an upper machine is utilized to monitoring mult
19. ss Class Operating Temperature 2 150 380V 450V 2500W 180 260 V AC 47 51 5 57 61 5Hz gt 0 99 at nominal power 288 x 460x 126 mm 11 3 kg IP41 indoor 20C 40C l 8 3 Features RS485 Ethernet Optional GPRS Optional EMC EN61000 6 2 EN61000 6 4 32 9 Appendix 9 1 Exclusion of Liability The content of these documents 1s periodically checked and revised when necessary please call us or check our website www JALPOWER com for the 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 gnoring 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 33 9 2 Contact Us If you have any questions about or technical problems with the JSI G2 5K our
20. t stand by mode the inverter is ready to switch into Grid mode provided all the specified conditions are met otherwise the inverter will keeps at stand by mode Connecting to the grid After all system tests have been performed and all connection conditions are met the inverter switches from stand by mode to connecting mode In this mode the inverter delivers power to the grid This mode is the normal operational mode Fault When faults occur the inverter willswitch off the AC side relay and go into fault or stop mode to protect the PV power system when the fault is solved the inverter will wait for 300 seconds and test whether all the grid connection conditions are met again if everything Is satisfied the inverter will start to generate power Commissioning The inverter works as follows when connecting to the grid The PV modules are activated and start producing power The JSI G2 5K inverter starts charging the DC bus If the DC input voltage exceeds 170 V the inverter is ready for grid connection The inverter checks that grid conditions are OK The JSI G2 5K starts feeding power to the grid 5 3 Required Grid Conditions E GRID Conditions necessary for JSI G2 5K operation Grid voltage The grid voltage must be within a range of 180V 260V gt check table 5 1 for the adjustable voltage range Once the grid voltage exceeds this range the JSI G2 5K is disconnected from the grid within 0 2s e Grid frequency The grid
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