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3Installation Guide 

PV Grid-Connected Inverter SPI-B2

S 

Series

 

(1500-6000) User Manual 

24

 

All rights reserved ©Xiamen Kehua Digital Energy Tech 

Co.,Ltd

 

Figure3-20

 

Connect the DC connector 

----End 

3.5.4 AC Output (GRID) Connection 

It's forbidden that several inverters shares an AC switch. 

It's forbidden to connect with load between inverter and AC switch. 

To ensure the inverter can be disconnected with load safely, we suggest equipping independent dipolar 

breaker for each inverter to protect the inverter. 

Table3-2

 

Recommended AC breaker specification 

Model 

Specification 

SPI1500-B2

S

20A 

SPI2000-B2

S

20A 

SPI3000-B2

S

25A 

SPI3600-B2

S

25A 

SPI4000-B2

S

32A 

SPI4600-B2

S

32A 

SPI5000-B2

S

32A 

Содержание SPI-B2S Series

Страница 1: ...PV Grid Connected Inverter SPI B2S Series 1500 6000 User Manual ...

Страница 2: ... of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specification in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to change without...

Страница 3: ...nual are just for illustration details please take the actual product as standard Suitable Model SPI1500 B2S SPI2000 B2S SPI3000 B2S SPI3600 B2S SPI4000 B2S SPI4600 B2S SPI5000 B2S SPI6000 B2S Symbol Conventions The manual quotes the safety symbols these symbols used to prompt users to comply with safety matters during installation operation and maintenance Safety symbol meaning as follows Symbol ...

Страница 4: ...al iv All rights reserved Xiamen Kehua Digital Energy Tech Co Ltd Symbol Description Provides a tip that may help you solve a problem or save time Provides additional information to emphasize or supplement important points in the main text Product standard NB T 32004 2013 ...

Страница 5: ...equirements 3 1 1 5 Moisture proofProtection 4 1 1 6 Safety Warning Label Setting 4 1 1 7 Electrical Connection 4 1 1 8 Measure with Electricity 5 1 2 Requirements for Operator 5 1 3 Environment Requirements 5 2 Overview 7 2 1 Product Intro 7 2 1 1 Model Meaning 7 2 1 2 Product Features 7 2 2 Appearance and Structure 8 2 2 1 Operation Panel 8 2 2 2 External Terminal Illustration 9 2 3 Work Princip...

Страница 6: ...on 20 3 5 1 Wire Requirement 20 3 5 2 External GroundingConnection 21 3 5 3 DC Input PV Connection 22 3 5 4 AC Output GRID Connection 24 3 5 5 WIFI GPRS Connection 27 3 5 6 Communication Port Connection Optional 27 3 6 Check the Installation 30 4 LCD Operation 31 4 1 First Startup 31 4 2 Main Page 31 4 3 Main Menu Page 32 4 3 1 Running Information 33 4 3 2 Power Query 34 4 3 3 Record Query 34 4 3 ...

Страница 7: ...6 3 Australian Standard Special Instructions 44 6 3 1 Ground Fault Instructions 44 6 3 2 PV QV Mode Setting Instructions 44 6 3 3 WIFI Connection and APP Operation Mode 47 6 3 4 Additional RCDInstructions 47 7 Package Transportation and Storage 48 7 1 Package 48 7 2 Transportation 48 7 3 Storage 48 A Technical Specifications 49 B Acronyms and Abbreviations 53 ...

Страница 8: ......

Страница 9: ...re operation please read the announcements and operation instructions in this part which is to avoid accident The DANGER WARNING CAUTION in the manual are not all the safety announcements that must be abided by they are just the supplement of the safety announcements during operating Kehua Company does not undertake the responsibility caused by violating common safety operation requirements or the...

Страница 10: ...ce fault may cause electric shock or firing Before operating please inspect the device and see if there is any damage or exist other danger Check if the external devices or circuit connection is safe Before checking or maintenance if the DC side and AC side is power down just now it is necessary to wait for 5 minutes to ensure the inner device is completely discharged and then the operation can be...

Страница 11: ...tive of the PV array During installing ensure that the connection between inverter and PV array is completely disconnected and set warning marks at the disconnection to avoid reconnecting by accident 1 1 3 Anti Static Protection The static electricity generated by human bodies may damage the electrostatic sensitive components on boards Before touching the sensitive component please wear anti stati...

Страница 12: ...fety Warning Label Setting To avoid irrelevant person close to or misoperate the inverter during installation or daily maintenance please abide by the related standards Set warning labels at the front end and back end of the inverter to avoid wrongly close and even cause accident Set warning label board or safety warning area to avoid irrelevant person entering and cause human injury or device dam...

Страница 13: ...ements for Operator The related operation and wiring for the inverter should be performed by qualified professionals and ensure the electric installation accord with the electricity installation standards The installation and maintenance man should be trained and know each safety announcements and get the right operation method and then the installation operation and maintenance can be done The op...

Страница 14: ...he service life and reliability of the inverter So please avoid using the inverter in the following environment for long time The place where beyond the specification normal work temperature 30 60 relative humidity 0 95 The place where has vibration or easy impacted The place where has dust corrosive material salty or flammable gas The place where without good ventilation or closed ...

Страница 15: ...ries PV grid tied inverter Output power Without insulation Figure2 2 Model meaning illustration As shown in Figure2 2 SPI means that the product is Kehua s SPI series PV Grid Connected Inverter means the output power of the inverter when it is 5000 it means the output power is 5000VA B means the inverter is without isolation 2 means that the inverter is the second version S means the inverter is w...

Страница 16: ...rance of the inverter is as shown in Figure2 3 Figure2 3 Appearance of the inverter 2 2 1 Operation Panel Figure2 4 Operation panel Table2 1 Illustration of the operation panel NO Mark Illustration Remarks 1 LCD Shows the inverter status and information Shows the service and operation information Shows the alarm information and fault 2 Power indicator green On inverter is in grid connected status ...

Страница 17: ...ard or decrease the setting value Long press enter sub menu or confirm the current command Short press less than 1s Long press more than 1s 2 2 2 External Terminal Illustration The external terminals are all located in the bottom of the inverter including PV input AC output communication port and DC ISOLATOR etc as shown in Figure2 5 Figure2 5 Bottom view Table2 2 Terminals illustration NO Mark Il...

Страница 18: ...igure2 5 1 is the connection switch of inverter and PV array When the inverter works normally the DC Isolator must be ON During installation and wiring the DC Isolator must be OFF Before maintenance the DC Isolator must be OFF for 20 minutes and measure the voltage of DC busbar by multimeter only when the voltage less than 10V the maintenance can be done when maintenance or wiring the DC Isolator ...

Страница 19: ...circuit LC filter Output relay Output filter L N GRID AC SPD PE Figure2 6 Work principle diagram of SPI1500 B2 SPI2000 B2 DC switch Input filter Optional DC SPD DC DC Boost circuit 1 DC AC Inverter circuit LC filter Output relay Output filter L N GRID AC SPD PE PV1 Input filter DC SPD Boost circuit 2 PV2 DC DC Figure2 7 Work principle diagram of SPI3000 B2S SPI3600 B2S SPI4000 B2S SPI4600 B2S SPI5...

Страница 20: ...uces the installation of the inverter including installation process installation preparation transportation and unpacking installation procedure electrical connection and checking etc 3 1 Installation Process Start Install the inverter Electrical connection Check the installation End Installation preparation Figure3 1 Installation process 3 2 Installation Preparation 3 2 1 Tools Tools ...

Страница 21: ...sulated to avoid electric shock 3 2 2 Installation Environment Do not install the inverter in the place with poor ventilation Ensure that there has sufficient fresh air supply around the inverter To ensure long service life and stable operation avoid direct sunshine rain or snow on the inverter It is recommended to install the inverter in the place where has cover as shown in Figure3 2 ...

Страница 22: ...n hemisphere such as the Netherlands Spain cannot install the inverter towards south Figure3 2 Recommended installation site The inverter must be installed on the wall or supporter with enough bearing capacity Consider the visibility of indicators and LCD 3 2 3 Installation Space Keep at least 500mm from the left and right side of the inverter to other objects or inverters keep at least 600mm from...

Страница 23: ...men Kehua Digital Energy Tech Co Ltd 15 Figure3 3 Installation space unit mm 3 2 4 Installation Way Figure3 4 Installation way 3 3 Transportation and unpacking 3 3 1 Transportation The inverter should be transported by trained professional During transporting please take care and avoid impacting or dropping ...

Страница 24: ...nce if any shipping damage is found report it to the carrier and your local dealer immediately Check if the types of the accessories are complete and correct If there is any discrepancy take notes and contact the distributor immediately Figure3 5 Packing list 1 For SPI1500 B2S and SPI2000 B2S we provide 1 pair of DC terminals for other models we provide 2 pairs of DC terminals 2 WIFI GRPS and smar...

Страница 25: ...example to illustrate if you need to install the inverter on metal installation holder please adjust the installation step correspondingly Step 1 Determine the installation place based on the inverter size as shown in Figure3 6 and installation space as shown in 3 2 3 Installation Space Figure3 6 Size unit mm Step 2 Mark the position of installation holes on the wall according to the dimensions of...

Страница 26: ...depth of drilled holes should be within 45 55mm Clear the dust and measure the net depth Ensure that the depth of four holes is the same Step 3 Install the equipped 4 expansion plugs into the holes as shown in Figure3 9 Figure3 9 Install expansion plugs Step 4 Align the holes of installation holder with the expansion plugs and install the self tapping screws and flat gasket into the expansion plug...

Страница 27: ...verter and hang the inverter to the installation holder as shown in Figure3 11 Do not loosen the inverter until the inverter has been hang in the installation holder completely Figure3 11 Hang the inverter to installation holder Step 6 Fasten the inverter to the installation holder by 2 stainless steel combination bolt M5 12 as shown in Figure3 12 and then lock it The lock position is as shown in ...

Страница 28: ...k the lock customer provided End 3 5 Electrical Connection 3 5 1 Wire Requirement The wiring of the inverter is all at the bottom as shown in Figure2 5and Table2 2 The corresponding recommended wire specification as shown in Table3 1 Table3 1 Wire specification Type 1 5kW 2kW 3kW 6kW DC input PV 2 5 mm2 4 mm2 4 mm2 6 mm2 AC output GRID 2 5 mm2 L N PE 4 mm2 6 mm2 L N PE Grounding wire 2 5mm2 4 mm2 ...

Страница 29: ...ire cannot replace the PE wire of AC output terminal they must be connected with ground reliably Step 1 Strip the insulation layer of grounding wire for about 7mm insert the wire into OT terminal and crimp them by crimping tool the as shown in Figure3 14 Figure3 14 Stripping diagram of external grounding wire unit mm Step 2 Connect the crimped grounding wire to the external grounding terminal as s...

Страница 30: ...ative pole of PV array or it will lead to inverter damage Use the equipped PV connector and metal terminal to connect the PV input The PV connecter includes positive connecter and negative connector they match the corresponding positive metal terminal and negative terminal corresponding procedure as follows Step 1 Strip the insulation layer of positive wire and negative wire for about 7mm as shown...

Страница 31: ...8 Figure3 18 Fasten the metal terminal Step 4 Tighten the sealing nuts of positive connector and negative connector to the corresponding insulation crusts respectively as shown in Figure3 19 Figure3 19 Tighten the sealing nuts Step 5 Measure the voltage and check if the positive and negative is connected properly and if the voltage within the input range of the inverter Step 6 Insert the positive ...

Страница 32: ...hat several inverters shares an AC switch It s forbidden to connect with load between inverter and AC switch To ensure the inverter can be disconnected with load safely we suggest equipping independent dipolar breaker for each inverter to protect the inverter Table3 2 RecommendedAC breaker specification Model Specification SPI1500 B2S 20A SPI2000 B2S 20A SPI3000 B2S 25A SPI3600 B2S 25A SPI4000 B2S...

Страница 33: ... of AC output unit mm It is recommended to use brown or red wire as the live wire use blue or white wire as neutral wire and use yellow green wire as PE wire to avoid wrong connection If using the wires of other color please confirm the corresponding connection relationship Step 2 Unscrew the lock nut and waterproof of AC connector as shown in Figure3 22 lead the live wire neutral wire and groundi...

Страница 34: ...tor There is L N PE mark on the AC connector the wire connection must be accord with the mark correspondingly Step 3 Insert the AC connector to the GRID port as shown in Figure3 24 and lock it Figure3 24 Insert the AC connector When inserting the AC connector please pay attention to the gap on the AC connector and make it align the heave on the GRID port avoid damaging the connector End ...

Страница 35: ... WIFI GPRS communication connection 1 The GPRS do not need to set 2 When connecting pay attention to the limiting position and don t wrongly insert it When tightening do not use excessive force torque 1 5 2 0N m so as not to damage the interface Inverter with GPRS Router Internet PC monitor Smart phone Server Inverter with WIFI Figure3 26 WIFI GPRS monitor way 3 5 6 Communication Port Connection O...

Страница 36: ...RM adapter s RJ45 plug must be short connected together RS485 communication port RS485 communication port is used to communicate with smart meter to achieve anti countercurrent RJ45 port 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 PIN7 PIN8 Smart Meter RS485 B RS485 A Figure3 28 Connection diagram between communication port and smart meter When using the anti countercurrent function the following setting must...

Страница 37: ... waterproof RJ45 port as shown in Figure3 29 and then lead the communication wire go through the RJ45 port and crimp it to the RJ45 plug Figure3 29 Crimp the wires of RJ45 port Step 2 After crimping insert the RJ45 plug into the buckle as shown in Figure3 30 and then screw the RJ45 port Figure3 30 Buckle position Step 3 Screw the waterproof cover on the COM port insert the RJ45 port to the COM por...

Страница 38: ...ghts reserved Xiamen Kehua Digital Energy Tech Co Ltd 3 6 Check the Installation After installation check the following items Check if the connection of DC input AC output and communication wire are right Check if the inverter is installed firmly Check if all the screws of wiring are tightened ...

Страница 39: ...re4 1 Power on password page Table4 1 Button function on power on password page Button Function Short press add the number value Long press clear enter value the cursor back to the first position Short press reduce the number value Long press confirm the current entering and the cursor move to right 4 2 Main Page Main page can show date time inverter status as shown in Figure4 2 When the inverter ...

Страница 40: ...r main menu 4 3 Main Menu Page There are 5 sub menu including running information power query record query system setting and system information as shown in Figure4 6 to Figure4 8 corresponding button function is as shown inTable4 3 Running Info Power Query Figure4 6 Function selection page 1 Record Query System Set Figure4 7 Function selection page 2 System Info Running Info Figure4 8 Function se...

Страница 41: ...to Figure4 13 corresponding button function is as shown inTable4 4 P_in 00 0kW P_out 00 0kW Figure4 9 Running information page 1 Freq 00 0Hz Volt 000 0V Figure4 10 Running information page 2 Curr 000 0A PV1_U 000 0V Figure4 11 Running information page 3 PV1_I 000 0A PV2_U 000 0V Figure4 12 Running information page 4 PV2_I 000 0A Temp 00 Figure4 13 Running information page 5 Table4 4 Button functio...

Страница 42: ...uery page Button Function Long press back to main menu page 4 3 3 Record Query In main menu page select Record Query the LCD will show the record query page In this page it shows the current fault history fault user log grid connected and off grid record as shown in Figure4 15 to Figure4 16 Long press button it will turn to detail info of selected item as shown in Figure4 17 to Figure4 20 correspo...

Страница 43: ...tion U5000 ON OFF setting U5004 Anti countercurrent function setting U5010 Initiative islanding enable setting U6000 Power factor control setting U6001 Reactive power control setting U6003 MPPT disturbance step setting U6201 Anti countercurrent power setting U6202 Grid active power setting U6020 Date time setting 17 01 01 001 12 00 00 G000_1 Figure4 20 Grid connected and off grid record page Table...

Страница 44: ...ect user and enter password it will enter the page of corresponding user authority User includes general user User and administrator Admin as shown inFigure4 21 corresponding button function is as shown inTable4 9 User Admin Figure4 21 Select user authority page Table4 9 Button function on user authority selection page Button Function Short press move the cursor upward Long press back to main menu...

Страница 45: ...e Figure4 23 General user setting page 1 ON OFF Grid Std Figure4 24 General user setting page 2 When the inverter is off select ON OFF the LCD will enter the power on confirmation page When the inverter is on the LCD will enter the power off confirmation page as shown in Figure4 25 and Figure4 26 corresponding button function is as shown inTable4 11 Power ON Cancel OK Figure4 25 Power on confirmat...

Страница 46: ...rotection point under frequency recover point PV mode setting etc I O Set Clear Hist Figure4 28 General user setting page 4 I O set includes anti island enable anti countercurrent enable DRM mode Date Time 2017 01 01 12 00 2017 Figure4 29 Date time setting page 中文 English Figure4 30 Language setting page Table4 11 Button function on user setting page Button Function Short press add number value or...

Страница 47: ...function is as shown inTable4 12 Model Serial No Figure4 31 System information 1 Ctrl Version HMI Version Figure4 32 System information 2 Model SPI5000 B2S Figure4 33 Inverter model SN 0000 0000 0000 0000 0000 Figure4 34 S N Ver V2 Figure4 35 Control software version Ver V1 Figure4 36 Display software version Table4 12 Button function on system information Button Function Short press move the curs...

Страница 48: ...tch on the AC switch between inverter and grid If the alarm indicator doesn t light on the LCD will show current status standby Step 3 When the DC and AC supply power normally the inverter will prepare to start At first the inverter will check the inner parameters and AC grid parameters if they are in the normal range 60s later the inverter will check the insulation impedance Step 4 About 60s the ...

Страница 49: ...and may cause scald injury After shut down the inverter and wait until it cooling down then do the maintenance and clean Do not clean the inverter with any solvent abrasive material or corrosive material 6 2 Troubleshooting The inverter is designed on the basis of the grid connected operation standards and meets the requirements of safety and EMC Before provided to client the inverter has been exp...

Страница 50: ...ntact the local distributor E029 Inverter over temperature Check the radiator and see if it is blocked Check the environment temperature and see if the temperature exceeds the normal range If they are all normal please contact local distributor E032 Inverter over current If the fault always exists please contact the local distributor E035 Grid current DC component abnormal If the fault always exis...

Страница 51: ... environment is too moist Check the inner grounding and see if the connection is loose If they are all normal please contact local distributor If the inverter has any alarm information mentioned in Table6 1 please shut down the inverter refer to 5 2 Shutdown 5 minutes later restart the inverter refer to5 1 Startup If the alarm status is not removed please contact our local dealer or service centre...

Страница 52: ...e to the voltage at its terminals Settings for the power quality response modes are shown in Figure6 1 17 01 01 12 00 Status STANDBY Start inverter Homepage Main menu Long press Record Query System Set Main menu Short press Record Query System Set Long press User Admin Long press System set Password 0 0 0 0 0 0 0 Password Entry Password 0 0 0 1 1 1 1 Password Entry Short press reduce number value ...

Страница 53: ...vide a volt watt response as per Figure6 2 Figure6 2 Example curve for the volt watt response mode The default setting for the volt watt response mode is as shown in Table6 2 Table6 2 Default setting for the volt watt response mode Region Default value Vw1 V2 P2 Vw2 V3 P3 Australia A Voltage 253V 260V Inverter maximum active power output level P of Srated 100 20 Australia B Voltage 250V 260V Inver...

Страница 54: ...the volt war control mode is as shown in Table6 3 Table6 3 Default setting for the volt war control mode Region Default value Vw1 V2 P2 Vw2 V3 P3 Australia A Voltage 253V 260V Inverter maximum active power output level P of Srated 100 20 Australia B Voltage 250V 260V Inverter maximum active power output level P of Srated 100 20 Australia C Voltage 253V 260V Inverter maximum active power output lev...

Страница 55: ... monitoring unit included the inverter will disconnect immediately from the mains power once a fault current with a value exceeding the limit has been detected However if an external residual current device RCD is mandatory the switch must be triggered at a residual current of 30 mA recommended or it can be set to other values according to local regulations For example in Australia theinverter can...

Страница 56: ...placement direction DO NOT carry the inverter with the objects that is inflammable explosive or corrosive DO NOT put the inverter in the open air while midway transshipment Leaching or mechanical damage by rain snow or liquid objects is prohibited 7 3 Storage During storage place the inverter strictly according to the direction that showed on the carton Keep at least 20cm from the bottom of the ca...

Страница 57: ... c V 100 550 Isc PV d c A 16 5 16 5 2 16 5 2 16 5 2 16 5 2 16 5 2 16 5 2 16 5 Full load MPPT voltage range d c V 125 450 165 450 150 450 180 450 200 450 230 450 250 450 300 450 Startup voltage d c V 120 No of MPPTs 1 1 2 2 2 2 2 2 Strings per MPPT 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Max input current d c A 13 2 13 2 13 2 13 2 13 2 13 2 13 2 13 2 13 2 13 2 13 2 13 2 13 2 13 2 Maximum inverter backfeed curr...

Страница 58: ...8 8A 7 01ms 9 0A 7 44ms 13 0A 7 67ms 4 6A 1 3 6ms 7 9A 8 0ms Maximum Output Fault Current 105A 3 04μs 110A 3 14μs 122A 2 88μs 120A 3 30μs 180A 3 16μs 210A 2 98μs 312A 3 10μs 474A 3 03μs Maximum output over current protection a c A 20 23 25 32 32 32 32 40 Rated grid frequency Hz 50 60 Grid frequency range Hz 45 0 53 0 Power factor rated power 0 99 Power factor adjusting range 0 8 ahead 0 8 lag 0 8 ...

Страница 59: ... Class D Piezoresistor Standard certification upon request IEC62109 1 2 EN62109 1 2 AS4777 2 2015 G83 2 G59 3 VDE4105 EN50438 AS 62040 CGC CQC CE Basic parameter Size W H D mm 360 420 125 Weight kg 11 8 Max 12 6 Max Installation Wall mounting Insulation Non isolated Overvoltage category PV II AC III Degree of protection IP65 Self consumption at night 1W Operating temperature range 30 60 If the tem...

Страница 60: ...500 B2S SPI2000 B2S SPI3000 B2S SPI3600 B2S SPI4000 B2S SPI4600 B2S SPI5000 B2S SPI6000 B2S Inverter design Transformerless Display LCD display LED indicator Communication RS485 WIFI optional GPRS optional DRM Australia AC terminal Plug and play max 6mm DC terminal D4B Other function Whole machine Update online Specifications are subject to change without prior notice ...

Страница 61: ... rights reserved Xiamen Kehua Digital Energy Tech Co Ltd 53 B Acronyms and Abbreviations A AC Alternating Current C CE Conformite Europeenne D DC Direct Current I IEC International Electrotechnical Commission L LCD Liquid Crystal Display LED Light emitting Diode M MPPT Maximum Power Point Tracking ...

Страница 62: ...nnected Inverter SPI B2S Series 1500 6000 User Manual 54 All rights reserved Xiamen Kehua Digital Energy Tech Co Ltd P PE Protective Earthing PV Photovoltaic R RS485 Recommend Standard485 T THDi Total Distortion of the input current waveform ...

Страница 63: ...Z 乏TECH XIAMEN KEHUADIGITAL ENERGY TECH CO LTD ADD No 457 Malong Road Torch High Tech Industrial Zone Xiamen Fujian China 361000 TEL 0592 5160516 8 lines FAX 0592 5162166 Http www kehua com Technical Support ...

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