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1. EE 6 6 1 RJ45 Connector Wiring rrrrrrrnnnnnnrrrnnnnrnvrnrnnnnnnvnnnnnnn 31 6 7 Inverters with Three Inverters Per Phase rrrnnnnnnnnnnnnnnnnen 36 6 8 COMMISSIONING EE EE 37 6 8 1 Verify before COMMISSIONING ccccceseeeeeeeeeeeeeeeees 37 6 8 2 Inverter COMMISSIONING rrrrrnrrrnnnnnnnrrnnnnnnrnnrnnnnnrennn 37 7 Disassembling and Installation rrnnnnvrvrnnnnnrvnnnnnnnrnnnnnennnnnnnnrn 38 ES SKA WC 1 oa EEE Rea 38 7 2 The Installation and Backout of Cover Panel 008 39 7 3 The Disassembling and Installation of Connector 40 8 Man Machine Exchange System sccsssssseeesseeeseeeeseeenees 43 oa i ac EE ene eee ee enone 43 8 2 Function of Push Button ranrronnnnnornnnrvnnnnnrnnnnnrnnnnnnvnnnnnnn 44 8 3 LCD Screen DEP sv neei n e E 44 8 3 1 Initialization Interface arrrnrnnnrnrnnnnvrrnnrrvnnnrnnrnnnennnnre 44 8 3 2 Screen Display of Operating Parameters 0000 47 8 3 3 Fault Screen Display rrrrrrrrrrrrrrrnnnrrrvrrrrnnnrvrvvrrnnnneenn 49 8 4 LCD Screen Backlight Control rrrrrvnnnnnnrnnnnnnnnnrnvrnnnnnnnne 51 8 5 Statistics of Total Generating Capacity and Time 51 9 TFOUDICSMO OUI Ga 52 9 1 Troubles and Processing ccccssesececeeeeeeeseeeeeessaeeeessaeeeess 52 TDC Aa isc erecta cise cee asec sees ce cies cect EAEE EO EEEE 54 Ti APPENOD Buss 57 11 1 Quality AsSurance uu bpsposarsese2. When disassemble inverter cover use the cross screwdriver screw the cover screw in turn and then disengage the grounding wire from the grounding screw of the inverter cover 2 When installation first installation the grounding wire to the grounding screw of the cover Then installation cover use the cross screwdriver the torque is 1 8 0 2N M lock the cover screw in turn Fig 7 1 The reference picture of Installation and disassembly 39 CCKC 7 M 7 3 The Disassembling and Installation of Connector The Disassembling and installation of PV connector The professional tool which is designed specifically for the DC side PV Connector are necessary if the connected PV Connector need to be removed as it can help to pull out the connected PV connectors easily Please operate as following Operation instructions Demonstration picture Professional tool for PV Connector Step 1 Putting the professional tools into the holes of the PV connector totally as shown on the picture the connectors are disengaged Step 2 Remove the connector 40 CEHE gt AC Side Electrical Connection The AC side connectors need to be removed by screwdriver Please operate as following Operation instructions Demonstration picture Straight screwdriver Step 1 Inserting the straight screwdriver into the hole as shown on the picture so that the connectors are disengaged Step 2
3. DC soft over voltage Fault201 Array 1 over voltage Fault202 Array 2 over voltage Fault203 Capacitance neutral point voltage fault Fault204 DC bus ground fault Fault205 AC leakage current sensor fault Fault206 AC leakage current out of limit fault Fault207 AC leakage current mutation fault Fault208 The disequilibrium between AC sensor Fault209 I A and B AC sensor A failure Fault210 AC sensor B failure Fault211 CESC gt EE Array 1 current sensor fault Fault212 Array 2 current sensor fault Fault213 The DC component over load of IA Fault214 The DC component over load of IB Fault215 The zero calibration fault of IA Fault300 The zero calibration fault of IB Fault301 Parallel arrays off line Fault302 8 4 LCD Screen Backlight Control When the power is on the LCD backlight shall come on and the initialization is completed When the inverter operates normally about 10 seconds the backlight will go out If the button is pressed the backlight shall come on If no button is pressed for 30 seconds the backlight shall go out 8 5 Statistics of Total Generating Capacity and Time The total generating capacity statistics include the total daily generating capacity and total cumulative generating capacity The total daily generating capacity is calculated from 0 after restarting the inverter The total generatin
4. Features of EHE N TL Series PV Inverters a an 7 4 Structure of EHE N TL Series Circuit rrrnnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnnnnnn 8 SIS Cet AOU EN 9 5 1 Safety TETTE 4 9 5 2 Installation Preparation cccccccccssscccceseccseseecceeeesnsneeeseaes 10 5 2 1 Inspection before Installation rrrrnnnnrrnrnnnrernnnnnnnnn 10 5 2 2 Requirement for Installation Conditions c00 10 5 2 3 Installation Direction cccccccccseeeeceeeeeeeeeeesseeeesaeeees 12 5 3 Installation Of Inverter rrranrrrrnnrrvrnnnrvrnnrrvrnnnrernnrrennnnnennnn 13 6 Electrical Connection and COmmMiSSIONING c sesssseeeseeeees 16 6 1 Electrical Connection Steps rrrrrrrnnnrrrnrrnnnnrrrnrnnnnnnrnnnnnnn 17 6 2 Connecting Terminals at Bottom of Inverter rrrrrrrnnnnrrn 19 6 3 Selection of Cables for Electrical Connection 000 20 6 4 Grid Side Electrical Connection rrrvrnrrnnnnnrrvvvnrrrrnnerrrernnnnn 21 6 4 1 Consideration for Grid Side Electrical Connection 21 6 4 2 Connect Inverter to Grid rrrrnnrnnnnrrnvvnnnnnvrnvnnnnnnnnnnre 22 6 5 DC Side Connection Steps rrrrrrrannrrrnrnnnnnrernrnnnnnrennrnnnnnee 25 6 5 1 Connecting Inverter to PV Array rrrnrrnnnnnnvrnrnnnnvvvnnrnnn 25 6 5 2 Inverter Input Parallel Connection rrrrrnnnnnnrornnnnnnnn 28 6 6 Communication CONNECTION rrrnrrrrrvrnnnnnvrvrrrnnnrrvrnrnnnnnennnn 31 CEHE gt
5. Management System for how to set addresses ar Notice Any device delivered with the 1 and 2 of S2 dip switch in the OFF position When we perform the Multicomputer communication we should make the 1 and 2 of 52 dip switch which is in the LCD panel of the last unit in the ON position the 1 and 2 of S2 dip switches which are in the LCD panel of the rest units in the OFF position The 7 2 cover panel s disassembling and installation show you how to open the machine cover 34 CCKC 7 M The following diagram shows you how to connect many multiple units in daisy chain configuration Last EHE N TL Fl EHE N TL it RS232 RS485 _ f Oo R485 to R5232 ee FJERNT Converter End User s Computer Fig 6 9 Multicomputer communication Notice Multicomputer communication is optional If do not need it we will use an end cap to close COM1 up and install RJ45 as an alternative 6 6 3 WiFi Communication EHE N TL Inverters with WiFi function how to use please refer to the WiEi Communication Module User Manual CEHE 2 6 7 Inverters with Three Inverters Per Phase Example for the thermal rating for a line circuit breaker in a photovoltaic power generating system operated in parallel with the low voltage grid We assume a PV system with 9 EHE N TL inverters with three in
6. and AG sides CEHE HA 5 2 Installation Preparation 5 2 1 Inspection before Installation The product has been tested and checked carefully before transportation but damage may be caused during transportation therefore the product should also be checked carefully before installation If any damage is found please contact EHE or the transportation company Please keep well the photos taken at the damaged parts and we ll provide you with best and fastest services 5 2 2 Requirement for Installation Conditions Warning The temperature will be increasing when the inverter is operating properly therefore do not install the inverter at a flammable or explosive place or a place where the flammable or explosive materials are stored Do not install the inverter in a place where there is a risk of explosion The inverter of IP65 protection class can be installed outdoor Do not install the inverter in a place exposed to direct sunlight otherwise it may lead to higher temperature in the inverter resulting in derated operation even overhigh temperature resulting in inverter temperature fault The installation place selected should be solid enough to support the inverter weight for a long period The site for inverter installation must be clean and the ambient temperature must be maintained within 25 to 60 C The inverter must be installed in a place convenient for observation and maintenance Tne inve
7. voltage Notice 23 Make sure that the DC input voltage of the inverter f should not exceed 520V For two input inverter the selection of cables of the same sectional area is required to ensure that the balance between DC input groups is kept 6 5 1 Connecting Inverter to PV Array 1 Measuring the PV array s positive and negative in multimeter make the polarity is correct Moreover make sure the PV array voltage doesn t exceed the maximum input voltage 520V 25 CEHE Notice If the machine damaged because that PV array voltage exceeds maximum DC input voltage of the inverter it doesn t belong to warranty range Do not connect the PV array of which the open circuit voltage exceeds maximum DC input voltage to the inverter Inspect every system carefully before installation 2 Connecting of the wire of the Connector Please connect the wire of the DC Connector according to the following steps Operation Instruction Operation Demonstration Crimping plier Step 1 Unscrew the fastening nuts from the connector Step 2 Strip off the insulation from the DC cable The length of Stripped insulation is approximate 7mm Step 3 Crimp the exposed core part to the connector tube core with crimping pliers 26 CEHE gt EE Crimping effect figure Step 4 Plug cable with tube core part through the fastening nut
8. 2 20 CEHE gt 6 4 Grid Side Electrical Connection 6 4 1 Consideration for Grid Side Electrical Connection You must install a separate line circuit breaker for each inverter in order to ensure that the inverter can be securely disconnected under load And the requirement models of breakers as Table 6 1 Warning When more than one inverter is connected to the same line circuit breaker the protective function of the line circuit breaker is no longer guaranteed It can result in a cable fire or the destruction of the inverter Never connect several inverters to the same line circuit breaker Warning When a producer inverter and a consumer are connected to the same line circuit breaker the protective function of the line circuit breaker is no longer guaranteed The current from the inverter and the grid can accumulate to overcurrent which is not be detected by the line circuit breaker Never connect consumers between the inverter and the line circuit breaker without protection Always protect consumers separately 21 CEHE gt 6 4 2 Connect Inverter to Grid 1 Connecting of the wire of the Connector Please connect the wire of the AG Connector according to the following steps Operation Instruction Operation Demonstration Step 1 Using the straight screwdriver to separate the connector jacket and the wire body step 2 Losing the fastening nut at the
9. CEKHE EHE N TL PV Grid connected Inverter User Manual pr Version TL EU UME V3 0 PV Grid connected Inverter EHE N1KSTL EHE N2KTL EHE N3KTL EHE N4KTL EHE N4K6TL User and Installation Manual Version V3 0 2012 The copyright belong to EHE This document involves the proprietary and confidential information about PV grid connected inverter of EHE It strictly prohibited to disclose the document by duplicating photocopying publishing online and in other forms without the company s permission EHE reserves the right to change details in this publication without notice History of Versions Version Date Author Approval Comment 1 0 11 03 11 Liu Yan Ma Zhibao Original release 11 11 06 10 Liu Yan MaZhibao Electrical wiring way modification 1 2 11 08 08 Liu Yan Yao Jun Increasing function information 1 3 11 12 29 Liu Yan Yao Jun Inverter structure modification CCRC Table of Contents 1 MANA INSTRUCTION Vvs 1 TI ADDIG 0 E E E E 1 Wi OC AU ON ee E R E 1 1 3 Symbols Used rrrrrnnnnnnrnnrrnnnnnvrvrnnnnnrnnnnnnnnnrsvnnnnnsnssnnnnnnsnnsnnnn 1 1 4 Tools Used in Inverter Installation srrrrrrnnrrnnrrrrrnnrrnnnnnnnr 3 2 Safety Instructions and Specifications n xrrnnnnnnnnnnnnnennnnnnnennnnnnr 4 2 1 Safety INSWUCHONS Hanse 4 PENE 4 3 The Introduction of EHE N TL Series PV Inverters 00 6 3 1 Introduction of Product essensies 6 3 2
10. E Table 6 1 Requirement for Selection of Circuit Breakers EHE N1K5KTL EHE N2KTL EHE N3KTL EHE N4KTL EHE N4K6TL DC Breaker 600VDC 16A 600VDC 16A 600VDC 16A 600VDC 16A 600VDC 16A 2poil 2poil 4poil 4poil 4poil AG Breaker 400VAC 16A 400VAC 20A 400VAC 25A 400VAC 25A 400VAC 25A 18 CEHE i a ee 6 2 Connecting Terminals at Bottom of Inverter The input and output terminals are installed in the bottom of the inverter and include DC side input terminals and AC side output terminals and RS485 communication terminals Fig 6 4 Connection terminals at bottom of EHE NSKTL 4KTL 4K6TLInverter Table6 2 Terminals Description Terminals Description PV PV1 PV array DC positive input terminals connect with power PV2 grid by DC breaker PV PV1 PV array DC negative input terminals connect with power PV2 grid by DC breaker AC AC output terminals connect with power grid by AC breaker ON DC switch is ON OFF DC switch is OFF COM1 WiFi RS485communication interface optional Ch 7 M 6 3 Selection of Cables for Electrical Connection The user can select cables used for electrical connection according to the following specifications Table 6 3 Specifications of Cables for Electrical Connection DC positive 12 12 12 12 12 input cable po 1 12 1 12 1 121120 12 negative input cable GNDwie 12 12 f 12o 12 12 Grdlwre 12 12 120 12 12 GrdNnwre 12 12 1 12 12 1
11. K6TL inverters screen 21 shall not be displayed on LCD screen but screen 20 screen 22 Output information screen 23 Daily power and cumulative power information screen 24 Daily time and cumulative time information If no button is pressed and no fault the screen shall return to screen 16 display and the above cycle shall continue If the button is pressed the screen shall return to screen 12 and the above cycle shall continue If have fault the inverter shall stop running and display screen 25 S Cod is Outage code S Cau is the reason for outage screen 25 Outage reason inquires screen 48 ha CEHE gt Note that during the Inverter is running normally the PV voltage is low or the grid voltage is loss and then will display the Screen 11 or the Screen 8 If have any other faults please see the Screen 25 8 3 3 Fault Screen Display When severel faults occur e g four faults the screen shall display the follow screen after Screen 24 or Screen 25 Screen 26 Fault advisary display If no button is pressed the screen shall display as Screen 26 if the button is pressed shortly and continuously the screen shall display four faults in turn and then continue the process of above cycle so that the user can inquire about the necessary information for troubleshooting When the button is released there is still fault that finally remains as screen 26 displays When the faults are removed the display return
12. L Inverter have two strings PV array input can make them short circuited in parallel We recommend you select the Parallel method of Inverter external to parallel connect in order to easy operation 30 CEKHE 6 6 Communication Connection When the inverter worked as stand alone communication the connection between the inverter and the monitoring equipment can be performed by means of RJ45 connector There are 2 routes connecting holes located at the external of the inverter It does not matter whether it is no 1 or no 2 inputing wiring connected to the RJ45 connector considering that they are connected in parallel Outputing wiring connected to the monitoring equipment computer RJ45 connector Fig 6 8 RJ45 Connector 6 6 1 RJ45 Connector Wiring Description of the RJ45 connectors pin on the panel showing as below Table 6 4 RJ45 connector Pin Signal Description fo Nam o O 1 VCC The positive polarity of WiFi modular 2 INotused oo 8 NotUused gt 4 A Required for RS485 communication 5 B Required for RS485 communication 6 NotUsed S 7 Not Used 31 _CCHE gt EE Notice ies To make sure the communication quality the communicating a it cable should the shielding wire Sub thread has weak anti interference capacity will result in the communication work abnormally when the machine is disturbed For convenience we suggest you buy t
13. Remove the connector Ce EEE Communication Connection Steps No professional tools required Just unscrew the connector as shown on the picture Operation instructions Demonstration picture Step 1 Unscrew the nut as shown on the picture Step 2 Remove the connector CGHE gt 8 Man Machine Exchange System 8 1 LCD Panel The LCD panel of EHE N TL series inverter is composed of the LCD screen LED lights and a button and the system can be easily monitored as shown in Fig 8 1 joo o Fig 8 1 LCD panel The EHE N TL series inverter is characterized by high degree of intelligentization that can start and stop operating everyday automatically without manual control There are 3 LED lights in the LCD panel as shown in Fig 8 1 that tell us the operating states of inverter The states indicated by each LED light are as listed in the following table Table 8 1 Description of LED Lights Power indicator light comes on It comes on when LCD panel supplies power Running Green Grid Connected Running light The indicator light comes on when it runs normally Fault light It comes on when a fault occurs and not removed The indicators are described in detail as follows 1 The power indicator light green shall come on when supplying power 2 The three indicator lights shall come on simultaneously when the system is initializing and the master chip is
14. Step 5 Plug the tube core into the wiring trough untile a sound indicating inseted in place is heared Tighten the nut in a direction opposite to that in step 1 Effect figure 3 Make sure that the positive and negative pole of PV array is connected rightly 4 Make sure that the DC side switch and DC side circuit breaker are in open state plug the positive and negative connector into the corresponding terminal at the bottom of the inverter respectively Note that he positive and the negative mustn t be misconnected Take EHE N3KTL for example CEHE 5 Plug the other input connectors into the corresponding inverter terminals in the same way 13 Notice EHE N1KSTL EHE N2KTL inverter has one PV array input EHE N3KTL EHE N4KTL EHE N4K6TL inverter has two string PV inputs The system supports simultaneous connection of two groups of PV arrays of the same power The power of each string of PV array for EHE N3KTL inverter shall not exceed 1 65KW The power of each string of PV array for EHE N4KTL inverter shall not exceed 2 2KW The power of each string of PV array for EHE N4K6TL inverter shall not exceed 2 53KW 6 5 2 Inverter Input Parallel Connection EHE N3KTL EHE N4KTL EHE N4K6TL Inverter has two strings PV array input System supports input of the two groups PV array which are in the same frequency But some systems may feature a single array When this is the case the array m
15. TUV mark Equipment and Product Safety Act in Europe She CEKE gt 1 4 Tools Used in Inverter Installation Inverter installation and wire installation will need the following tools You also can choose the right tools according to your own experience Crimping plier Crimping plier Electric drill Suggest specification 8 socket wrench Suggest specification 14 Straight screwdriver Suggest specification M2 Cross screwdriver Suggest specification diameter 5 p p P p Hd IR DODND CCkc M 2 Safety Instructions and Specifications Please read this manual carefully before starting installation and operation Any damage to the equipment caused due to failure to comply with the descriptions in this manual in installation or operation will be beyond the scope of the company s quality guarantee 2 1 Safety Instructions A Warning The EHE N TL series PV grid connected inverters can only be operated by qualified personnel Do not touch the live components of the inverters when the inverter is in operation Please pay attention to all the safety instructions listed in this manual A Warning Make sure that the DC input voltage should never exceed 520V Over higher voltage will cause damage to the device 2 2 Specifications The proper transportation storage assembly and installation as well as control and maintenance are required normally for safe opera
16. ault occurs please restart the inverter If this fault occurs frequently please contact Anhui EHE New Energy Tech Co Ltd 53 CCRC 10 Appendix A Technical Data EHE N TL a EHE N1K5TL EHE N2KTL EHE N3KTL EHE N4KTL EHE N4K6TL ala Max Input Current 125V 420VDC 125V 420VDC 125V 420VDC 125V 420VDC 150V 420VDC PV Start Voltage 165 420 VDC 165 420 VDC 165 420 VDC 185 420 VDC 185 420 VDC Nominal Input Voltage range Backfeed DA Max Inverter Current to the Nominal output current at 230 6 5A 8 7A 13A 17 4A 20A Max output current Operating Grid Frequency Operating Grid 230VAC Voltage nn o S poj a CEC Huisa Energy Grid Connected a THD at nominal output power Power Factor at gt 0 99 nominal output power Max Efficiency 96 50 96 50 96 80 97 00 97 00 European us 95 50 95 80 96 00 96 00 Efficiency Standby Power Nighttime Power Consumption Grid kn vi VDE0126 1 1 monitoring Mechanical __ j Dimensions W x H x D approx 325x475x170mm 325x535x190mm ee 14k 14 5k 18k 18 5k 19k approx g g g g g Isolation Transformerless Insulation monitoring integrated all pole sensitive leakage current monitoring unit protection Protective Class Ingress IP65 protection Natural Ambient 25 to 60 C Temp
17. ay be connected to the No 1 DC input PV1 section alone provided that array current is less than the maximum capacity of one section To avoid possible problems when determining panel electric insulation parameters short the inputs PV1 and PV2 1 Parallel method of Inverter internal Parallel method of Inverter internal just is short the inputs of the second section PV2 by connecting a cable to the suitable terminals on the inverter board First remove the cover panel of the inverter How to remove the panel can refer to 7 2 The Installation and Backout of Cover Panel After remove the cover panel you can find the PV1 PV1 PV2 PV2 terminals on the main PCB board as Fig 6 5 Short the PV1 and PV2 terminals with suitable wires and short the PV1 and PV2 terminals in the same way as Fig 6 5 28 Fig 6 5 Effect of inverter internal parallel 2 Parallel method of Inverter external Parallel method of Inverter external then need to select a photovoltaic connectors as Fig 6 6 PV Connector 1 Fig 6 6 photovoltaic connectors Then connect the photovoltaic connector 2 to PV1 and PV2 of inverter and connect the photovoltaic connector 1 to PV1 and PV2 of inverter as Fig 6 7 Fig 6 7 Effect of inverter external parallel 29 EE CEHE gt Notice IEY EHE N1K5TL EHE N2KTL Inverter has one string PV array input no need to perform short circuit EHE N3KTL EHE N4KTL EHE N4K6T
18. erature 25to 60 C 25to 60 C 25to 60 C 25 to 60 C 45 C Rating derated Data logger Data communication RS485 RS232 WiFi optional interface Altitude 2000m above 2000m need derate operating emission 55 Compliance IEC 62103 EN50178 IEC EN 62109 1 IEC EN 62109 2 IEC EN61000 6 1 2007 IEC EN61000 6 3 2007 IEC EN61000 3 3 2007 AS NZS 3100 2009 AS4777 2 2005 2005 AS4777 3 56 CEHE 11 Appendix B 11 1 Quality Assurance Warranty Period The warranty period of the product is five years and the contract shall prevail if otherwise specified in the contract e Evidence In the warranty period the company requires customers to show the product purchase invoice and purchase date At the same time the mark on the product should be clearly visible otherwise the company has right to refuse to give quality assurance e Conditions e The product found failure during warranty period Anhui EHE New Energy Tech Co Ltd will free of charge repair or replace it with new product e The failed product replaced should be returned to Anhui EHE New Energy Tech Co Ltd e The client should give reasonable time for Anhui EHE New Energy to repair the faulty equipment When one of the following cases exists the company has the right to refuse to give quality assurance Transportation damage Improper installation Improper modifications e Incorrec
19. g resistance fault then display the Screen 5 Screen 5 AC leakage current sensor testing screen If the AC leakage current sensor fault then display the Screen 6 Screen 6 AC leakage current sensor fault If there is no AC leakage current sensor fault then display the Screen 7 the inverter is in grid state testing countdown from 90 to 60 in about 30s Screen 7 The grid voltage testing screen If the grid voltage loss then display the Screen 8 Wherein Cod represents shutdown code Cau represents shutdown reason Screen 8 The grid voltage loss 45 CCKC gt E If the grid voltage is normal the Inverter entered the countdown state 60 59 3 2 1 0 and display the Screen 9 Screen 9 The countdown screen Note that during the initialization interface start up if have fault display the Screen 10 If the PV voltage fail to meet the start condition then display the Screen 11 Screen 10 Fault screen Screen 11 The PV voltage low After the system initialize screens display completed the equipment version information shall be displayed subsequently including 2 21 indicating the LCD version No 3964 indicating the version No of inverter and 10 indicating the ID No the program updates they also follow to update Screen 12 Version No screen If the communication is normal the equipment model and serial No shall be displayed subsequently the screen shall be dis
20. g time statistics include the total daily generating time and the total cumulative generating time The total daily generating time is calculated from 0 after restarting the inverter The total generating time measurement will be accumulated after installation 51 CEHE 9 Troubleshooting 9 1 Troubles and Processing Once a fault occurs the fault light comes on the LCD screen displays the current fault and at the same time the inverter will be shut down The following table lists the typical faults and corrective measures Table 9 1 List of Troubleshooting Content of Fault Fault Description and Troubleshooting Fault110 Once the grid frequency returns to normal the inverter will recover grid connected operation after five minutes Check the grid for proper connection Check the grid for stable frequency Grid amplitude error Grid voltage exceeds permitted range Once grid Grid frequency error The grid frequency exceeds the allowable limits Fault111 voltage re normal inverter will recover running after over five minutes Check the grid for proper connection Check the grid for stable voltage Grid phase loss Grid phase loss Fault109 If this fault occurs frequently please contact Anhui EHE New Energy Tech Co Ltd Grid connection The grid side current exceeds the allowable limit over current Check the grid wiring for short circuit check the Fault106 inverter f
21. he finished network cable as the communication connector Follow step2 to step 4 connect the PIN 4 and PIN 5 of crystal head to communication interface A and B of the RS485 If you want to make the communication connector yourself please follow the step1 to 4 1 Processing of the connector wire Please crimping the RJ45 first crystal wire as following Operation Instruction Operation Demonstration Crimping plier Step 1 Pull out the wire Step 2 Put the wire in order 32 Step 3 Cut off the wire Step 4 Insert the wire into the first crystal in order Step 5 Ready to compact Step 6 Compressed Effect figure 33 CCkc M 2 Make the wire crimped with the first crystal through the waterproof terminal 3 Insert the connector into the corresponding connector on the inverter fastening the nut 4 Refer to the description of the RJ45 pin select the corresponding wires connect to the corresponding A B communication 6 6 2 Multicomputer Communication RJ45 connectors can be used to connect a single inverter or many inverters connected in a daisy chain Maximum number of inverters that can be connected in daisy chain is 255 Recommended maximum length of this chain is 1200 metres In case many inverters are connected in a daisy chain it is necessary to assign an address to each unit Please reference the document of User Manual of Solar Power
22. jacket bottom Step 3 Strip off the insulation from the 3 wires L N GND The length of stripped insulation is approximate 7mm Plug the wire through nut and intermediate leave step 4 Plug the L N wires into the L N holes in the connector the GND into the hole with mark and then tighten the screws Remember the colors corresponding to different wires 22 LEKRE z Step 5 Connect the intermediate sleeve and front end wiring slots and tighten the nut in the direction opposite to that in step 1 The impression drawing 2 Making sure that the grid voltage is in the permitted voltage rage 185 260Va c 3 Making sure that AC side circuit breaker is in open state 4 Plug the AC connector into the AC side terminal at the bottom of the inverter untile a sound indicating inseted in place is heared Take EHE N3KTL for example 5 Connect the cables between AC circuit breaker and the grid 23 CEHE gt Notice ts The PE connection is adopted inside the inverter making the machine jacket and the cover are grounded 24 CGHE gt 6 5 DC Side Connection Steps 1 Warning When carrying out connection of PV array and inverter the PV array should be covered with transparent materials and the DG side circuit breaker should be disconnected otherwise the PV array may generate dangerous
23. of EHE N3KTL EHE N4KTL EHE N4K6TL 13 CCKC gt M 3 Fix installation sheet metal in the located holes with bolts Fig 5 5 Installation of bolts 4 Lock down the bolts make the bolts cling to the wall Fig 5 6 Effect of Installation the bolts 14 CEHE gt 5 Hang the inverter onto the installation sheet metal Fix the inverter on the rock or panel with the toggle bolt or screw IS not permitted Notice Anhui EHE would provide the bolt which suitable for the installation on the concrete wall If the inverter is fixed on the wooden wall please choose suitable bolt to finish the installation the bolt length should be enough and penetrate the 1 2 depth of the walls 15 CEHE 2 6 Electrical Connection and Commissioning The electrical connection should be carried out immediately when the installation is completed When making electrical connection special attention should be paied to the following operating specifications A Warning Any improper operation and installation may cause fatal injury to operator Only qualified electrical personnel can perform the wiring installation work Before electrical connection please make sure that the AC side and DC side are uncharged The PV array open circuit voltage set should not exceed 520V 13 Notice The inverter can start grid connected operation only when the local utility depar
24. operating and the fault light shall go off when the inverter runs normally 3 When an error occurs in communication the fault light and the running 43 CEHE 2 HA light shall flicker at the same time 4 When other fault occurs the fault light shall come on until the fault is removed 5 The running light shall be on as long as the inverter is running properly 8 2 Function of Push Button After the system is powered on the LCD screen display boot screen at first then display initialize screen see screen 1 amp 2 below Then press the button and hold it untill the LCD screen become screen 3 see screen 3 below can reset the cumulative generating time and cumulative generating capacity When screen 9 is end press the buttons shortly to view the LCD screen display and press the button shortly and continuously to scroll the screen displays rapidly 8 3 LCD Screen Display 8 3 1 Initialization Interface After the system is powered on about 10 seconds later the three indicator Screen 1 Boot screen Then the system initializes and displays the follow screen When the screen display is over the running and the fault indicator lights go out at the same time Screen 2 System initialize screen Then display the Screen 3 44 Screen 3 Grounding resistance testing screen If the grounding resistance fault then display the Screen 4 Screen 4 Grounding resistance fault If there is no groundin
25. or interference sources nearby if not please restart the inverter If this fault occurs frequently please contact Anhui EHE New Energy Tech Co Ltd Array 1 over voltage The first input voltage at DC side is overhigh Fault202 Operate the DC circuit breaker disconnect the PV component from the inverter immediately Measure the PV array open circuit voltage Che gt HE Check that the connection mode of PV component meets the inverter requirement Array 2 over voltage Fault203 The second input voltage at DC side is overhigh Operate the DC circuit breaker disconnect the PV component from the inverter immediately Measure the PV array open circuit voltage Check that the connection mode of PV component meets the inverter requirement Array 1 over current Fault102 The first input current at DC side is overhigh Operate the DC circuit breaker disconnect the PV component from the inverter immediately Check that the connection mode of PV component meets the inverter requirement Array 2 over current Fault103 The second input current at DC side is overhigh Operate the DC circuit breaker disconnect the PV component from the inverter immediately Check that the connection mode of PV component meets the inverter requirement AC leakage current sensor fault Fault206 AC leakage current sensor failure When inverter is starting or running this f
26. played as follows the EHE N3KTL model is taken as an example Screen 13 The equipment model and serial No screen 46 CCRC As Screen 14 if the inverter have DC bus ground fault the Riso is 0 otherwise the Riso is 20 The Port is port number if use WiFi communication the default value of Port is 9760 if not the Port is 0 The port number can be modified through webpage how to modify please refer to the WiEi communication user manual 1 a sk Screen 14 Grounding fault of DC bus screen Screen 15 shows IP address if use WiFi communication the value of WiFi IP is the actual allocated IP address if not the WiFi IP is 0 0 0 0 Screen 15 WiFi IP address 8 3 2 Screen Display of Operating Parameters After screen 15 appears about 2 seconds the following 7 screens shall be displayed in turn screen 16 to screen 24 Each screen displays about 10 seconds Screen 16 Temperature and operating status information screen 17 Grid current and voltage information screen 18 Current and voltage information of PV array1 CGHE screen 19 Current and voltage information of PV array2 For EHE N1K5TL EHE N2KTL inverters screen 19 shall not be displayed screen 20 Input power information screen 21 Input power information For EHE N1K5TL EHE N2KTL inverters screen 20 shall not be displayed on LCD screen but screen 21 For EHE N3KTL EHE N4KTL EHE N4
27. r grid 3 1 Introduction of Product The PV grid connected generation system consists of PV arrays grid connected inverter metering devices and distribution system as shown in Fig 3 1 The solar energy is converted into DC energy through solar cell array and then the DC energy is converted into sinusoidal wave AC voltage of the same frequency and phase with that of the grid of which a part supplies power to the local load and the rest of the power is fed to the grid Inverter Utility Grid The PV grid connected generation should start with permission from the local utility department and invite the professional personnel to perform the relevant operations ha CEHE 3 2 Features of EHE N TL Series PV Inverters e Adopt advanced IGBT power module e High conversion efficiency low temperature rise low noise long lifespan e MPPT gt 99 9 Advanced multi languages LCD display and powerful communication interfaces Intergrated DC isolation switch optional Extended MPP voltage range Advanced anti islanding technology Perfect system protection high reliability Moudular design easy to install operate maintain CEHE gt 4 Structure of EHE N TL Series Circuit Fig 4 1 and Fig 4 2 are block diagrams for internal functions of an EHE N TL series inverter MPP tracker to ensure that maximum power from PV arrays can be utilized DC switch can cut input of the PV arra
28. rter uses natural cooling mode and the installation site selected should ensure the minimum installation spacing between the inverter and the fixed object and the nearby inverters to ensure an good ventilation 10 Fig 5 1 Minimum spacing of adjuscent installations AN Warning The installation of EHE N TL series inveter in a higher salt spray environment is prohibited 11 CORE gt HE 5 2 3 Installation Direction 1 The inverter should be installed vertically or titled backwards with a 2 3 4 maximum angle of 10 Do not install inverter tilted forwards Never install the inverter horizontally The installation height of inverter should be convenient for operation and reading out of the LCD displayed information Fig 5 2 Installation directions 12 _CCHE 2 EE 5 3 Installation of Inverter 1 Drill holes in the selected installation position according to the size and shape of sheet metal for installation of accessories See the Fig below for an installation example When drilling please drill at least two horizontal holes and two vertical holes and the distance between two vertical holes should be at least 100mm 2 The suggesting diameter of hole is 8 1 0 the depth is 60 5 0 When drilling keep the drill vertically to the wall without shaking to avoid the holes tilting N 70 1 lt N lt 5 N 55 1 lt N lt 5 N 70 1 lt N lt 5 Fig 5 4 Installation holes
29. s to nomal and repeats the above process The specific fault is shown as follows Screen 27 Fault screen Screen 28 Fault screen Screen 29 Fault screen Screen 30 Fault screen Note that if a communication error occurs no matter what displays on the 49 CEHE current LCD screen a fault tip will pop up and displays until the communication error disappears then the fault indicator light flashes If the button is pressed shortly at this time shall view every LCD screen display Then release button the screen remain displays the screen as follows Comm Error Screen 31 Communication error Table 8 2 below lists the cross reference of fault susplays Table 8 2 Cross Reference of Fault Displays Name of Fault screen Display Radiator overheating Fault100 Temperature switch fault Fault101 Array 1 over current Fault102 Array 2 over current Fault103 AC hard over current Fault104 Drive over current Fault105 Grid connection over current Fault106 Inverter amplitude error Fault107 Synchronous phase error Fault108 Grid phase loss Fault109 Grid frequency error Fault110 Grid amplitude error Fault111 Communication fault RXD off line Faulti12 Communication fault TXD off line Fault113 DC bus undervoltage Fault114 Temperature sensor fault Fault115 Slave equipment initialization error Fault200
30. sessnenestmmjv 57 11 2 Contact US rrrrnnrrnrnnnnnrnvrrnnnnrrnrrrnnnnsrnnrnnnnnnen seesaeaeeeeseeaaaees 57 CEHE gt 1 Manual Instruction 1 1 Applicability This manual includes the description regarding the troubleshooting in process of transportation installation maintenance and operation of the following EHE N TL inverters EHE N1K5TL EHE N2KTL EHE N3KTL EHE N4KTL EHE N4K6TL Please keep this manual in a convenient place for future reference 1 2 Precautions This manual is for qualified electricians The tasks described in this manual may be performed by electrically qualified persons only 1 3 Symbols Used The following types of safety precautions and general information are used in this manual A Warning indicates the matter that the user must strictly followed otherwise it may endanger the personal safety or cause damage to the property IEY Notice indicates the important information for the user to optimize the PV system CCRC i Pi Symbols on the Inverter The inverter operates at high voltages All work on the inverter may only be carried out by qualified Beware of dangerous electrical voltage personnel The inverter can become hot during operation Beware of hot surface Avoid contact during operation The inverter complies with the requirements of CE mark the applicable EC guidelines The inverter complies with the requirements of the
31. t use or inappropriate operation e Operated in a harsh ambient environment beyond the conditions described in this manual e Damage caused due to abnormal natural environment lf the product size and parameters have changed the latest information given by the company shall prevail without notice 11 2 Contact Us If you have any question about EHE N single phase photovoltaic grid connected inverter please contact us and we will be happy to give you answers 57
32. teps are completed when the grid normal and DC side voltages are higher than 180V the inverter shall start operating automatically Warning Please first switch on the AG side circuit breakers then switch on the DC switch on the Inverter at last switch on the DC side circuit breakers or may result in equipment damage 37 CGHE 7 Disassembling and Installation 7 1 Safety Instruction Warning Before open the inverter please pay attention to the following Making the AC side and DC side circuit breakers are in open state Waiting for a few minutes to making sure the inverter is uncharged Warning If the inverter has equipped the DC side switch please make it switch on before inserting and pulling out of the DC side connector Warning When the inverter is in a state of charged please don t insert and pull out of any connector Otherwise it will cause the personal injury and equipment damage Notice Electrostatic discharging will cause damage to the inner parts of the inverter We should carry out the antistatic measure before disassembling and installation 38 ha CEHE HE 7 2 The Installation and Backout of Cover Panel Because of repair or any other reasons need disassemble inverter cover for the better seal performanc make sure that you are operating according to the following instruction 1
33. tion A Warning All operation and wiring works should be performed by professional electrical or mechanical engineers and all electrical installation shall be in accordance with the local electrical installation criteria To ensure safe operation the equipment isrequired to be properly grounded use correct size of conductors and provide necessary short circuit protection CEHE 2 Warning Please use a multimeter to measure the DC side and AC side voltage without fail before inspection and maintenance to ensure that the operation is performed with no voltage at both DC and AC f sides Warning The solar cell arrays should be covered with opaque materials when installing the photovoltaic arrays during the day otherwise the solar cell arrays will generate high voltage The pictures in the manual are consult only if deviate from the real object according to the real object please Please follow all the indications related to dangers warnings and safety according to the requirements for operation and installation descriptions 3 The Introduction of EHE N TL Series PV Inverters The EHE N TL series inverter is grid connected inverter of high conversion efficiency without transformer The EHE N TL series grid connected inverter enables maximum power output of solar panels and can convert and supply the output energy of solar panel to the powe
34. tment approved and the professional electrical personnel completed the installation and electrical connection All electrical installations must be in accordance with local and national electrical codes The wires and cables of appropriate size must be selected and firmly connected and well insulated Warning Do not switch on any breakers until the PV generator has been connected and all of the devices have been fixed warning Do not plug in or out any connectors when the inverter is charged 16 ha CEHE HE 6 1 Electrical Connection Steps Fig 6 1 and Fig 6 2 show the electrical connections between grid connected inverter EHE N TL and solar cell array as well as grid User must add a DC circuit breaker at the input side of inverter add an AC circuit breaker at the output side of inverter And the requirement models of breakers as Table 6 1 Because of the inverter has with DC switch itself if the distance between solar cell array and inverter is short you also can not add DC circuit breaker PV Arrays Utility Grid Lg DC Breaker AC Breaker Fig 6 1 Schematic diagram of electrical connection of EHE N1K5TL EHE N2KTL Inverter PV Arrays Utility Grid a ei FT DC Breaker AC Breaker Fig 6 2 Schematic diagram of electrical connection of EHE N3KTL EHE N4KTL EHE N4K6TL 17 nt CEK
35. verters per phase as the Fig 6 10 below Fig 6 10 Three inverters per phase Required technical information for the inverters used 1 Maximum output current as table 6 5 2 Maximum permissible fuse protection for the inverter as table 6 6 Table 6 5 Maximum output current CCKC gt E 6 8 Commissioning 6 8 1 Verify before Commissioning PV arrays The PV array should be checked before operation of the inverter to ensure that the positive and negative mustn t be misconnect otherwise the damage may be caused to the inverter Make sure that the open circuit voltage of photovoltaic array doesn t exceed the required voltage DC input Make sure that the DC terminals of the inverter are connected correctly and maintained consistent with the PV array AC output Make sure that the AC side of inverter is connected correctly to ensure that the AC side circuit breakers of the inverter are in open state 6 8 2 Inverter Commissioning After electrical connection accord to the following steps start EHE N TL PV inverters e Make sure that DC and AC voltage of inverter are in permitted range e Make sure that the inverter is connected correctly to the grid e Make sure that the polarity of PV arrays is correct e Make sure that the AC and DC terminals are connected firmly e Switch on the AC side circuit breakers e Switch on the DC switch on the Inverter then switch on the DC side circuit breakers After the above s
36. ys Boost circuit raises input DC voltage Then H4 full bridge inverter circuit converts DC power to AC power Meanwhile inverter is equipped with protective circuit to guarantee itself safely operation that can trigger AC relay if required Fig 4 2 Schematic diagram of EHE NSKTL EHE N4KTL EHE N4K6TL CEHE HA 5 Installation 5 1 Safety Instructions The installation operation and maintenance of EHE N TL series inveters must be carried out strictly according to the following specifications and instructions Check the inverter carefully first for damage during transportation if any problem is found please contact Anhui EHE New Energy Tech Co Ltd or the transportation company The inverter grid connected power generation should start with permission from the local utility department and the relevant operations should be carried out by professional personnel All electrical connections must be in accordance with local electrical installation criteria Don t touch other parts in the cabinet except the connecting terminals in installation Make sure that the circuit breakers at both DC and AG sides are in open state before carrying out electrical connection Make sure that the circuit breakers at both DC and AG sides are open At least 5 minutes later use a multimeter to measure the voltage at DC and AG sides before carrying out equipment maintenance to ensure that the maintenance must be conducted with no voltage at both DC
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