Home

USER MANUAL - Itek Energy

Contents

1. ELTEK m a a N he i z z Ss Information in this document is believed to be accurate as of the date of publication and is subject to change without notice This document and the information contained herein do not represent either a commitment or any guarantee on the part of Eltek regarding the reliability fitness or compatibility of the products and procedures described While every reasonable effort is made to ensure the accuracy and completeness of this document Eltek assumes no responsibility or liability for any damages that may be directly or indirectly attributed to the use of the information contained within or to any errors or omissions No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording for any purpose without the expressed consent of Eltek Copyright Eltek 2013 LT 5 IK u NS EN ISO 9001 Certified alwayson Certificate No 4072 2007 AQ NOR NA NS EN ISO 14001 Certified Certificate No 11276 2007 AE NOR NA 357116 013 Issue 2 0 April 2013 Published 2013 04 12 IngBjoNo Il User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS Safety Instructions This User Manual contains important safety instructions for THEIA HE t UL string inverters which must be thoroughly read and followed prior to insta
2. Always disconnect the PV array cables from the Inverter after turning the AC and DC OFF but before removing the covers as the PV array can Supply up to 600 Voc to the inverter when exposed to sunlight 2 Remove the four screws on the front with a 4 mm hex key 3 Angle the cover outwards and take it off carefully et eS Figure 2 6 Removing the lower cover 4 Store the lower cover and screws Safely to avoid loss or damage 5 Fasten the screws on the lower cover with a torque of 0 74 ft lbf 1 0 Nm Never remove the inverter lower cover in wet conditions Removal of the inverter lower cover during rain or in damp conditions can damage sensitive internal electronic components User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 15 3 SAFETY PRECAUTIONS This chapter contains instructions on how to install operate and maintain the THEIA HE t UL inverters safely These safety precautions must be read thoroughly and understood prior to installation Failure to follow the safety precautions may result in injury or death and may void the warranty 3 1 General Preparations The THEIA HE t UL inverters contain no user serviceable parts and installation and maintenance must be performed by qualified persons who have knowledge of State and federal electrical regulations ANSI NFPA 70 NEC and OSHA and follow such regulations and the instructions in this User Manual NOTICE The saf
3. me Figure 8 6 Checking the AC varistors Table 8 1 Check if the varistors are damaged Measurements Undamaged Damaged Between GND 1 and the left VDR 2 0Q o Q Between L 3 and the middle VDR 4 00 o Q Between L 3 and the right VDR 5 0Q o Q Replacement Procedure e Use the service tool delivered in the packaging with the new varistors ordered from Eltek The service tool is designed as a fork and can open up all terminal clamps simultaneously 92 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Figure 8 7 Service tool to open the varistor terminal clamps e Open the terminal clamps and remove the damaged varistor s e Comply with Figure 8 4 and Figure 8 5 to get the position of the varistors right e Use the service tool to open the clamps when inserting the new varistor s 8 3 Replace Devices The inverter can be replaced without disassembling the Stringbox NOTICE Removal of the inverter s lower cover must be performed by qualified persons only N Always disconnect the power sources prior to removal of the lower cover The inverter is charged with lethal voltages and removal of the lower cover poses a shock hazard if the inverter is not disconnected 8 3 1 Dismounting e Remove the inverter lower cover Refer to 2 4 5 2 Front Covers e Disconnect both the DC and AC terminals e Remove the screws J and K inside the Stringbox e Pull up the fixing plat
4. Inverter failure on the DC side Inverter failure on the AC side Maximum permissible internal inverter temperature is exceeded User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Fault is cleared automatically when PV voltage exceeds 230V If the inverter remains in this fault during daylight contact the supplier Check the complete installation PV panels frames cables etc for areas of low resistance to Earth The grounding setup is configured incorrectly Check the jumper for the grounding setup refer to 4 3 4 7 Jumper Position for System Grounding Setup Failure on the DC side Other W A are also shown If the inverter Is in Shutdown turn off the AC side and then the DC side Wait for 30 seconds then turn on the AC side and then the DC side If the fault persists contact the supplier Also record the extended status values see 6 2 2 2 Inverter Status Failure on the AC side Other W A are also shown If the inverter Is in Shutdown turn off the AC side and then the DC side Wait for 30 seconds then turn on the AC side and then the DC side If the fault persists contact the supplier Also record the extended status values see 6 2 2 2 Inverter Status Check that the ambient temperature is within the specification Refer to 10 Technical Data Check If the ventilation is sufficient the minimum distances for cooling are followed and the inverter is shielded from direct
5. Issue 2 0 April 2013 M Ensure that the electrical installation complies with the local and national electrical regulations in force at the installation site 4 3 Electrical Installation Correct electrical connection is critical for achieving safe long term and reliable operation of the entire PV system NOTICE The electrical connections must be performed by qualified persons and comply with local and federal electrical regulations and the instructions detailed in this User Manual N Combiner Box _ _Stringbox _ Circuit Optional Equipment PV Figure 4 5 Simplified system overview 4 3 1 Conductors Two important criteria must be considered in selection of conductor sizes namely ampacity and voltage drop Using correctly sized conductors improves the efficiency of the PV system e Ampacity refers to the current carrying capacity of the conductor The larger the conductor is the greater its capacity to carry current e Voltage drop is the reduction of voltage due to cross section current flow and length of the conductor It is recommended to minimize the system conductor voltage drop Voltage drop is equivalent to loss in energy yield The conductor cross section area must conform to the ratings of the NEC standards to prevent overheating and fire User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 7 e Use adequately sized conductors with the correct temperature rating an
6. initially shown as 0 User Name User name for the mail server Password Digits letters and symbols making up the user password for the mail server Sender email address A valid email address eg xxxx xxxxxx xxx required to be able to send notifications Receiver email 1 Mail address for recipient 1 Receiver email 2 Mail address for recipient 2 E Mail Set up To enable the inverter to send e mail notifications an SMTP server is required which transfers the mails to the receiver s Most companies have their own server while normal households most likely have to use their internet service provider ISP mail server NOTICE If an inverter is moved or connected to another network not operated by the same ISP anew SMTP server must be assigned Procedure Go to the inverter menu Alarm Setup gt Notification Setup Complete the text fields Refer to section 6 2 5 1 Notification Setup e User Name and password Usually provided by the ISP provider e Sender email address This is the e mail address appearing in the From field when receiving emails from the inverter It must be configured as follows name domain e Receiver 1 and 2 The recipients e mail addresses e SMTP server The SMTP server address NOTICE e All IP addresses related to the inverter and web must be configured within the range that is allowed by the local network e For GUI revisions below v1 32 the server address must be configured with num
7. or attention symbol present in this situation 1 0 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 3 1 Labeling 2 3 1 1 Product Label The product label is attached to the lower right side of the inverter housing It contains important identification information and characteristics for the inverter and must be clearly visible after installation IN Frequency 68Hz 59 3 68 5Hz Utility Power 4450W 45C 3900W 55C Interactive Branch Max output OCP 30A Designed by ELTEK Made in Norway S FE Wu tie S i USTED seys e o PART NAME Theia 4 4HE t UL DC 6xCG 4xFUS O PART NO RTS2GT4K4 1413 BATCH NO Test o1 m DC Input 220 600V 21Amax AC Output 208V 21 5A or 240V 18 5A r 183 229V 208V X EN 211 264V 240V Pow factor 1 o T 72 I Figure 2 1 Product Label Table 2 3 Symbols appearing on the product label Description Discharge time High voltages may be present inside the inverter for 1 hour after switch OFF Refer to this User Manual The safety precautions and instructions in this manual must be read and understood prior to installation Danger Shock hazards lethal voltages are present c US UL listing The product meets the UL 1741 safety health and environmental protection requirements Disposal Do not dispose in general waste Collect the various parts separately and recycle them according to local
8. a a 9 2 1 Standards and ADD ee ie 9 2 2 General INFOP MATION cccccccceeeeeeeeccecececccecececccececcucccccecccscsasesuscsacscsssnssessseneneses 9 23 WUE FEN SYD ei eier 10 2 4 UNDacK n a and IS SCION nennen 12 3 Safety Precautions una 16 3 1 General ProparatiOri nee een 16 3 2 AO PrEP HON Saar 18 33 Required Safety Equipment ccccscsssssssesssesssessesessesssseesesseesesseesessesesserseeess 20 4 SEAL ENT ects serena det eneaannasaacvseanicaunesantenwawendveneudvinesanseceneweauxasuwereceds 23 4 1 Mechanical Installation sccoeeesecsececenceecevececutvonckedeceeveiectevncndcameccenddedtedceoadtecoendanceds 23 4 2 Checks Prior to Electrical Installation 2 202020200000000000000000200000 26 4 3 Fe ICS ll NON 2 csasteseensancesaecetusemeadsansatcnestavendiaaetntanenrsagsdsdedabeaesiadeestavenszantede 27 S Man UDe E a EENEN SEAEEER 46 5 1 Initial Start aeaseseseseseeeeenenesnnnnnnnnnnnnnnnnnnnnnnnnnunnnnnnnununnnunnnnnnnnnnnnnnnnnnnnnnnnnnnanannnnnnnennnan 46 O MUON a ce asec as pects E eee pew E E E E E ai 58 6 1 Access Levels and Passwords cccccccecsesessessececccccccecccccccccceeeceseeeesssseseeeerceess 58 6 2 LCD Screen GN S cee eeercececaacenpecendoneneedateiensteceaansaceenesatessenticcocdseseuneaeceuhdcensaiemerccscans 58 6 3 Connection between Inverter and PC ccccecsscccsssssccccccececcecccceececsesseeeenensceees 73 6 4 Internal Webserver cccceaanennennnnnnnnnnnnnn
9. grid from all active inverters Energy produced today Total energy production throughout the day for the plant Phase Values Phase Values displays the inverter s various feed in parameters for the different grid phases Output current L1 Value of current fed into phase 1 Output voltage L1 Value of voltage fed into phase 1 Output power L1 Value of power fed into phase 1 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 63 Output current L2 Value of current fed into phase 2 Output voltage L2 Value of voltage fed into phase 2 Output power L2 Value of power fed into phase 2 Output current L3 Value of current fed into phase 3 Output voltage L3 Value of voltage fed into phase 3 Output power L3 Value of power fed into phase 3 503 6 2 3 Setup Setup displays settings and data from the inverter the grid and the PV plant Up or Down Navigate through the submenus Network Setup Enter Select a submenu confirm Inverter Setup Plant Setup N Grid Setup Figure 6 8 Submenus of Setup 6 2 3 1 General Setup General Setup displays some of the general parameters of the inverter which can all be changed using the Owner password Language Time format Date Time Time zone Password CO Rate Earnings Rate Earnings Currency Screen Timeout Power Saving during night time 64 The preferred language must be set during installation English default German Spanish Fre
10. i of p en zi Ea Ol AT E Figure 4 17 Connections for Delta grid with no neutral e Terminate the line 1 conductor at the terminal labeled L1 on the AC terminal block in the right side of the inverter lower compartment e Terminate the line 2 conductor at the terminal labeled L2 N on the AC terminal block in the right side of the inverter lower compartment 40 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 e Terminate the equipment grounding conductor at the grounding bar in the Stringbox Delta Corner Grounded 240 Delta Corner led 208 Delta Corner grounge grounded L1 L2 L1 L2 240 208 A FENAN ae gt 772 x Oe will Figure 4 18 Connections for Delta corner grounded and Delta Wye User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 41 e Terminate the line 1 conductor at the terminal labeled L1 on the AC terminal block in the right side of the inverter lower compartment e Terminate the grounded phase conductor at the terminal labeled L2 N on the AC terminal block in the right side of the inverter lower compartment e Terminate the equipment grounding conductor at the grounding bar in the Stringbox e Connect the grounding strap green and yellow colored between the flat receptacle labeled PE to the left side of the AC terminal block and the unmarked receptacle to the right of the DC ground terminal in the inverter
11. neutral 208 120 WYE with Neutral NOS 72 Neutral 208 Vac phase to phase 120 Vac phase to neutral 38 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 AA EES m m N T ry wr J J a gt cn aS A N 4 Ws N i AL Lal ile N a 1 8 OG OG O Figure 4 16 Connections for single phase with neutral e Terminate the line 1 conductor at the terminal labeled L1 on the AC terminal block in the right side of the inverter lower compartment e Terminate the line 2 conductor at the terminal labeled L2 N on the AC terminal block in the right side of the inverter lower compartment e Terminate the neutral conductor at the terminal block labeled N N n right side of the Stringbox e Terminate the equipment ground conductor at the grounding bar in the lower right side of the Stringbox e Connect the bonding strap white or grey colored between the flat receptacle labeled N above the N N terminal block in the Stringbox and the unmarked receptacle to the right of the DC ground terminal in the inverter lower compartment This is to monitor the voltage between the phases and neutral User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 3 9 Single Phase with no Neutral 240 Delta 208 Delta QO v 240 240 Vac phase to phase only 208 Vac phase to phase only Im ae TE IL ii SZ mE SSi a O n ill
12. of the inverter from today this month this year and in total since Start Up Energy Earnings CO avoided Peak Power 6 2 7 2 Plant Inverter s total energy production kWh Cash value of the feed in energy in currency kWh Avoided CO emissions kg kWh compared to fossil fuel Inverter s largest instantaneous amount of power production W Plant displays a summary of the most important statistics of the PV plant from today this month this year and in total since Start Up Energy Earnings CO avoided Peak Power 72 Plant s total energy production kWh Cash value of the feed in energy in currency kWh Avoided CO emissions kg kWh compared to fossil fuel Plant s largest instantaneous amount of power production W User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 3 Connection between Inverter and PC Site performance can be monitored remotely by using a computer The connection between the Inverter and the computer can be configured directly or via a network 6 3 1 Without a Network To connect the inverter directly to a computer a standard Ethernet cable is required In cases where the network card in the computer does not support Autosense a crossover cable is needed Client inverter Master inverter CAN bus cable Ethernet cable RS 485 cable Computer Data logger NOORWDNE Figure 6 13 Connection without network NOTICE With several inverters
13. only 8 2 10 1 DC Side e A message is shown in the display when a DC varistor needs replacement Refer to 7 2 Table of Events e Replace the damaged varistor with DC Varistor Kit ordered from Eltek part number 271539 e The two varistors on the DC side are located on the left side of the inverter lower compartment above the network connections e Note the positions of the varistors if they are in need of replacement Figure 8 4 Varistors on the DC side 8 2 10 2 AC Side e No warnings are given regarding the condition of the varistors on the AC side Therefore they need to be checked regularly at least once a year or after lightning strikes e Replace the damaged varistor with AC Varistor Kit ordered from Eltek part number 263574 e The three varistors on the AC side are located in the right side of the inverter lower compartment above the AC terminal area e Note the positions of the varistors if they are in need of replacement User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 g 1 u So Doro um or F fd A poh SAY Ld A EZ ll I AAN eee ATADAN an ye ae 17 La ill BLE SST CLM gt TTADA x ANY isin Miani i fi SSS 422225 Figure 8 5 Varistors on the AC side Check of the AC Varistors Measure the ohms resistance between the terminal and the bent pin on each varistor as per the below diagrams roy tors SSS
14. or be compliant to relevant state and federal electrical regulations due to incorrect limit values The following screen is displayed while inverter settings are being updated 54 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 11 Screen Timeout Enter Call up the digits Default Screen backlight turns OFF after 60 sec Screen timeout Left Back Right Next Enter Confirm INSTALLATION MENU a NOTICE The lowest value allowed to be set is 30 sec and the highest is 99 sec Setting the value to 0 disables the screen timeout and leaves the screen backlight ON at all times N 12 Customer Name Enter Call up the keyboard Customer name The keyboard enables typing a text entry Left Back Right Next Enter Confirm INSTALLATION MENU In some of the submenus the settings must be typed using the function keys Letter keyboard Number keyboard O Cc Ww oO 3 M pe p def ghi jkl pars tuv WXYZ lt 123 il u O gt u E Ok Clear Cancel User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 55 Table 5 4 Available symbols in the keyboard Description Description 4 Upper or lower case letter Ok ul EHEN eaead exe ane 71 Point Clear Clear the typing field Space Cancel Go back without saving changes Cancel last letter ABC Go to the Letter keyboard 123 Go to the
15. the RS 485 bus Measurement of data transmitted in a given amount of time bps RS485 parity Error detecting code A bit that ensures an odd or even number of bits in a set of bits with value one Selection None Odd or Even Bus ID CAN The inverter s identification number on the CAN bus Several inverters connected together in a power control and monitoring system must have one master inverter and the rest must be client inverters Set as Master unit 6 2 3 3 Inverter Setup Inverter Setup displays the various data for the specific inverter set during the manufacturer process and Is read only Model Serial Number Inverter Part No Inverter Revision GUI Software Part No GUI Software Revision GUI Hardware Part No GUI Hardware Revision SW1 Part No SW1 Revision SW1CS SW1BLPart No SW1 BL Revision SW1 BL CS Control Board Part No Control Board Revision Main Board Part No Main Board Hardware Revision SW2 Part No Inverter model Unique identifier for each inverter Also to be found on the product label Identifier for each inverter hardware configuration within Eltek Unique version name for keeping track of the development of different inverter revision within Eltek The GUI software part number Revision number for the GUI software Identifier for the GUl card hardware Revision number for the GUI hardware The DSP1 software part number Revision number for the DSP1 software The DSP1 softwar
16. the current user accounts and provides the ability to setup and or change user names and passwords The different levels are 1 Guest Access level 1 Read only access to all values 2 Owner Access level 2 Read and write access to all values and set levels except the installer related values such as network settings and user accounts 3 Admin Access level 3 Read and write access to all levels and set values 6 4 4 Event Log Event Log shows information about events that the inverter has logged The events are listed with the most recent event first THEIA Analyzer 113371127354 unit PV2 2013 01 28 16 08 16 GUI Restart 2013 01 28 16 07 04 Firmware Upgrade lt January 2013 gt i 2013 01 28 15 04 53 E32 RemoteTrip 2013 01 28 14 59 56 E32 RemoteTrip 2013 01 28 14 59 18 E32 RemoteTrip 2013 01 28 14 59 11 E32 RemoteTrip 2013 01 28 12 50 07 Grid Settings 2013 01 28 12 49 55 Grid Settings 2013 01 28 12 49 43 Grid Settings 1 2 3 4 5 6 7 8 9 2013 01 28 12 48 58 Grid Settings je je 2013 01 28 12 44 44 Grid Settings 2013 01 28 12 44 24 Grid Settings 2013 01 28 12 44 09 Grid Settings 2013 01 28 12 43 44 Grid Settings p ps ps gt W N Pages 224567892101112 K lt 4 gt gt Figure 6 18 Event Log e Recent events can be viewed by navigating directly to the different pages in the list on the bottom of the screen e Events from previous months and years can be viewed by specific dates using th
17. the screws by applying 1 11 ft lbf 1 5 Nm of torque e Terminate the grounded conductors at the terminal block labeled 2 Grounded and tighten the screws by applying 1 11 ft lbf 1 5 Nm of torque NOTICE PV systems with GFDI that incorporate the system grounding connection must not have an additional grounding connection N 4 3 4 6 Reversed DC Connection If the positive and negative terminals are reversed during connection the inverter will not start The inverter will not be damaged due to internal reverse blocking diodes but high currents are generated in the conductors Be aware of high currents If the DC terminals are reversed during installation high currents are generated in the conductors which can pose shock hazards Procedure e Turn OFF the AC circuit breaker s and the DC switch The PV conductors are still charged after the DC switch on the Stringbox is turned OFF due to power feeding PV modules Always turn OFF the remote DC switch and wait until the PV modules do not feed power e Remove the PV connectors e Check if the terminals are discharged by using a voltmeter e Disconnect the conductors from the terminal block UI User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 3 e Reconnect the conductors to the correct terminal block e Test the polarity using a voltmeter before turning ON the DC switch and the AC circuit breaker s 4 3 4 7 Jumper Position for
18. the technical specifications Keep the voltage and current within the specified limits The voltage generated by PV modules is inversely proportional to the temperature at lower temperatures the PV voltage increases from the product label rating and at higher temperatures the PV voltage decreases from the product label rating NOTICE The open circuit voltage Voc must never exceed 600Vpc under any conditions The maximum PV system voltage Is equal to the sum of the rated open circuit voltage of the series connected PV modules corrected for the lowest expected ambient temperature e Misuse of the inverter may damage the device or other electrical equipment and can interfere with the operation of the inverter or may even cause injury or death to persons operating and maintaining the inverter e Ignoring the instructions and guidelines in this User Manual and not performing regular maintenance may void the inverter warranty 3 1 3 Maintenance Prior to service and maintenance the inverter must always be disconnected on both the AC and the DC sides and be fully discharged Refer to 8 1 Switch OFF User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 7 NOTICE Accessing the inverter upper section voids the warranty The inverter upper cover must only be opened by authorized persons due to danger of damage to internal components e The inverter lower cover must only be taken off by qua
19. 0 ms 950 ms High and fast limit 240 0 Vac 288 0 Vac 50 ms 120 ms 2 Frequency Table 6 6 Adjustable frequency trip limits Trip Limits Trip Frequency Trip Time Min Max Min Max Low limit 55 00 Hz 60 00 Hz 50 ms 80 ms High limit 60 00 Hz 63 00 Hz 50 ms 80 ms General Grid Setup General Grid Setup displays grid parameters related to the selected grid Grid code Grid code of installation Description Name of the grid protection standard Grid nom voltage Nominal voltage of the grid on site Grid nom frequency Nominal frequency of the grid on site Grid configuration Grid configuration of the site e g Delta Split phase Stinger etc Feeding phase The phase the inverter is connected to Voltage limit min Lower disconnection limit of the grid voltage on site Voltage limit max Upper disconnection limit of the grid voltage on site Voltage time limits min Minimum disconnection time limit Voltage time limits max Maximum disconnection time limit Frequency limits min Lower disconnection limit of the grid frequency on site Frequency limits max Upper disconnection limit of the grid frequency on site Frequency time limits min Minimum disconnection time limit Frequency time limits max Maximum disconnection time limit 6 2 3 6 Changing the Grid Code e From the Main Menu Setup gt General Grid Setup gt Grid Code e Enter Confirm e After 5 hours of feeding in power to the grid after installation the Installer password must be used to chan
20. 7116 013 Issue 2 0 April 2013 89 8 2 8 Ventilation The heatsink on the backside of the inverter conducts heat away from the electronic components and must be clean to ensure sufficient cooling thereby preventing yield losses This is accomplished by using one of the following e Vacuum cleaner e Soft brush e Compressed air 8 2 9 Fan The fan circulates the air inside the inverter which distributes heat and thereby maintains the conversion capacity The replacement of the fan requires removal of the inverter upper cover and must be performed by Eltek authorized service persons only PN 7 la Ai nn HS NM N q Figure 8 3 Position of the fan e A message is shown in the display when the fan needs replacement Refer to 7 2 Table of Events e If the fan fails the inverter continues to feed the maximum amount of power available until a certain temperature threshold at which point it starts to reduce power to protect itself against overheating 90 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 8 2 10 Varistors VDR Varistors have a finite life expectancy and degrade and lose their protective function when exposed to transients They therefore need regular inspections every six months Replacement requires removal of the inverter lower cover and the use of the VDR service tool and must be performed by qualified persons
21. 84Vac at the AC terminals Check that the DC switch is ON and that the DC power is gt 7W Check that the grid settings have been successfully set in Setup gt Grid Setup Check that the grid settings have been successfully set in Setup gt Grid setup Check the AC breaker is ON and that the grid voltage is gt 184Vac present at the AC terminals Check that the DC switch is ON and that the DC power is gt 7W Restart Inverter DC and AC and retry Verify if the installation procedure was executed The grid code should be set to Italy int SPI Verify if the inverter is feeding power to the grid sufficient irradiation Restart the test later Verify if the AC circuit breaker is on and operational Measure that the grid voltage is present at the AC terminals Check that the DC switch is on and that the DC power is gt 7W Check that the country settings have been successfully set in Setup gt Grid Setup Turn the AC off and then on Fault is cleared automatically when PV voltage reduces below 600V If the inverter remains in this fault contact the supplier User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Low DC voltage I A E08 Low PV isolation resistance I E09 Inverter DC side failure W A E10 Inverter AC side W A E11 High inverter temperature W A E12 DC voltage is too low to operate the inverter PV isolation resistance Is below the permitted level
22. EIA 3 8HE t UL 18 5A 16 0A 25A 20A THEIA 4 4HE t UL 21 5A 18 5A 30A 25A 3 3 3 Surge Protection Overvoltage protection is used to prevent voltage surges through sensitive equipment The THEIA HE t UL inverters are equipped with Temperature protected Metal Oxide Varistors TMOV on both the DC source current and the AC output current which diverts the excessive current from voltage surges to ground e PV systems installed in an open or exposed environment need added protection on both the DC and AC sides as they can act as lightning rods e When the conductors are exposed to transients their behavior limits the effectiveness of a surge arrester One or more surge arresters are needed in installations with long conductors to obtain the required level of protection e Refer to NEC guidelines for selecting appropriate kA ratings for overvoltage protection devices e IEEE provides a good base for selecting kA ratings of the surge arrester The THEIA HE t UL inverters are designed for category B 100 KA 150 kA per phase 2 2 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 4 INSTALLATION This chapter describes how to install the inverter correctly both mechanically and electrically and details important issues related to the installation The information is intended for qualified persons who follow the installation instructions as described in this User Manual Never work with energized ports All wo
23. N 36 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 The AC output Neutral of the inverter is not bonded to ground To reduce the risk of fire do not connect to an AC circuit breaker panel having multi wire branch circuits connected Turn OFF the AC circuit breaker s and the DC switch before connecting the inverter to the grid to prevent electrocution AC power systems are found in both commercial industrial and residential office applications Phase power systems usually have three conductors Table 4 3 The different AC conductors Term Abbr Description Phase conductor L1 L2 The ungrounded conductors which carry current to the load Neutral conductor N A circuit conductor carrying the unbalanced current of the ungrounded conductors Equipment ground An electrical path to ground designed to carry fault current conductor GND These three conductors are connected to the service entrance panel The typical 120 Vac single phase Is provided by connection of either L1 and Nor L2 and N L1 and L2 provide 240 Vac while L1 and Nor L2 and N provide 120 Vac 120 Vac loads must be distributed evenly between L1 and L2 to keep the system in balance Also by connecting to a three phase system the load must be distributed evenly between the three phases NOTICE Single phase inverters connected to a three phase primary power source must not significantly increase unbalanced sy
24. Number keyboard e Enter must be pressed until the wanted letter number symbol is shown e It is possible to navigate between the characters by using the Up arrow to set the marker into the text window then using Left and Right to navigate between the characters e There is a maximum space for 19 characters in the text window 13 Site Enter Call up the keyboard The keyboard enables typing of a site name Left Back Right Next Enter Confirm INSTALLATION MENU 14 Unit Name Unit name Inverteri Enter Call up the keyboard The unit name helps to distinguish and identify specific inverter in a larger plant Left Back Right Next Enter Confirm INSTALLATION MENU 56 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 15 Message Enter Call up the keyboard Message This message field is to help distinguish and identify specific inverters in a larger plant or other information Left Back Right Next Enter Confirm INSTALLATION MENU fi 16 Owner Password Enter Call up the digits Default 0003 Change the password to 4 optional A x digits y NOTICE This password is not transmitted to other inverters on the CAN bus on GUI Finish firmware revisions below v1 32 INSTALLATION MENU Left Back Right Finish Enter Confirm Password NOTICE With several inverters connected it must be checked that the inst
25. System Grounding Setup The jumper above the NEG terminal block in the inverter lower compartment monitors the arrangement of the DC connection according to the grounding setup The jumper Is positioned for a negative grounded PV string configuration Depending on the grounding requirements from the module manufacturer the Jumper must be repositioned In case of a mismatch In grounding setup the following message will appear in the display Fuse fault Refer to 7 2 Table of Events Table 4 2 Jumper position for the DC grounding configuration Inverter lower compartment Top view ne Negative grounded PV configuration BEI Ra ARE The jumper short circuits the two rightmost pins default POS NEG ONDI PE en ma rt ae a Inn os EEE NEG NOPE eee Et Positive grounded PV Configuration The jumper short circuits the two 1 Jumper monitoring the grounding leftmost pin S setup 4 3 5 AC Connections Grid The AC connection includes wiring from the AC distribution panel through one or more circuit breakers to the AC terminal block of the inverter refer to 4 3 2 Connection Area Verify that the AC grid parameters are compatible with the inverter specifications before connecting the inverter to the grid e Single phase 240Vac 120Vac e Single phase 208Vac 120Vac WYE e Frequency range 55 0 to 63 0 Hz NOTICE The THEIA HE t UL inverter provides a voltage output range from 184 Vac to 276 Vac
26. able the inverter can be hard wired by a CAT 5 network cable to any RJ45 port where the DHCP Dynamic Host Configuration Protocol server will automatically assign a dynamic IP address to the computer and the inverter Client inverter Master inverter CAN bus cable Ethernet cable Router Switch World Wide Web Computer RS 485 cable Data logger SONDOURUPDHR Figure 6 14 Connection with network and World Wide Web To connect the inverter to a LAN or WAN network use a standard CAT5 or better cable to any of the LAN RJ45 ports on the router 6 3 2 1 With DHCP Dynamic IP Address Inverter 1 Go to Setup gt Network Setup 2 Set the IP address to 000 000 000 000 With this setting the router assigns a dynamic DHCP IP address automatically to the inverter 3 Press OK The GUI will restart to configure the new network settings 74 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 3 2 2 Without DHCP Static IP Address Inverter 1 Go to Setup gt Network Setup 2 Set the IP address to a desired unique address for the inverter Static The inverter s IP address must be an unused IP address in the network and in the same range as the computer s IP address 3 Press OK The GUI will restart to configure the new network settings 6 3 3 Access from the Internet In order to make the inverter s accessible from the internet further parameters must be set within the netwo
27. aded every hour to the portal The upload is disabled if the user name Is left blank The portal setup is compatible with Meteocontrol Setup FTP Server IP FTP server IP address FTP Port Sets the FTP port number for FTP server Default is 21 User Name FTP server user name Password FTP server password Note Only an inverter configured as a Master will upload FTP data For third party FTP services an additional cost may be applied 6 2 6 Event Log p Event Log displays information about the inverters logged events The events are listed with the most recent event first Up or Down Read the different values Left Go back to the previous screen 08 04 2011 00000 Right Go to next screen 09 22 E5 GridFault Warning Off 09 20 E26 FreqHigh Warning Off 09 19 E24 FreqHigh Warning Off 09 15 E23 OutVoltLow Warning Off EVENT LOG Figure 6 11 Events in the log User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 7 1 Warning On means that a warning event has occurred Warning Off means that an event has cleared D 6 2 7 Statistics 5 Statistics displays values for the daily monthly yearly and total energy harvest earnings CO2 savings and peak power The information is read only STATISTICS Up or Down Read the different values Enter Select a submenu confirm Figure 6 12 Submenus to Statistics 6 2 7 1 Inverter Inverter displays asummary of the most important statistics
28. age and power fed from the PV modules to the inverter Current voltage frequency and power fed from the inverter to the grid Highest power achieved throughout the day Total energy harvest throughout the day Temperature inside the inverter Level for a safe insulation between DC and AC side to prevent Injury or equipment failure The resistance should be minimum 600 kQ Total inverter running time from Start Up The product of voltage and current from the inverter VA OxZZZZ hexadecimal code for diagnostics service OxZZZZ hexadecimal code for diagnostics service 1 Extended Status codes are available from GUI revision 1 41 onwards 6 2 2 3 Plant Status Plant Status displays the operating mode status and operating parameters of the PV plant if there are other inverters connected and the inverter has been set as the master unit Plant Mode The plant has 8 different modes Refer to Error Reference source not found The plant has 3 different status levels Refer to Error Reference source not found Total number of inverters in the plant Number of active inverters Number of active inverters in the plant Number of inverter alarms Event alarms in the plant Number of inverter warnings Event warnings in the plant Plant Status Error Number of inverters Input Current Total current from the PV modules to the inverters Input Power Total power from the PV modules to the inverters Output Power Total feed in power to the
29. allation is been carried out correctly on all the client inverters e Look at the displayed menu and the LEDs It is not carried out correctly if the installation menu is still displayed and or the green LED is not lit and the yellow and red LEDs are lit e Check that the connection of the CAN cables are correct that the AC and DC switches are ON that the voltages are gt 184 Vac and 230 Voc and there Is a greater than 7 Woc of power e f the Start Up phase is correctly carried out the inverters are ready to use They are fully automatic during normal operation and no manual control is necessary for feeding power into the grid User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 5 7 6 OPERATION This chapter describes how to operate the menus in the LCD screen with the function keys or with a PC connected to the embedded webserver Please refer to 5 1 2 User Interface for a description of the LCD Screen and the meanings of the colored LEDs 6 1 Access Levels and Passwords There are three access levels to the different submenus Table 6 1 Password access levels Password Access Guest Read only access to all values Owner Read and write access to all values and set levels except the installer related values The default Owner password is 0003 This password can be changed by navigating to Setup General Setup gt Password If the password Is lost or forgotten please contact Eltek to obtain a n
30. ance 2 RS 485 termination resistance AA User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 4 3 7 Checks before Start Up VI Mounting Check that the bracket and the Inverter are correctly mounted and secured VI PV wiring Check that the PV cables are rated for the PV current and for the expected environmental conditions Check that the wiring is performed according to local and federal electrical regulations VI Connection Check that the PV conductors are correctly torqued to the DC terminals Check that all connectors and cable glands are correctly tightened and sealed VI DC side Verify that the PV open circuit voltage Voc does not exceed 600 Voc Check that the DC polarity is correct VI AC side Verify that the AC conductors on are correctly connected to the AC terminals VI Grounded conductors Check that the equipment grounding conductors are properly sized and not fused or switched MI Jumpers Check that the jumpers for the grounding setup and for the termination resistance are correctly positioned VI Disconnects Verify that all current carrying conductors on both the DC and AC side can be disconnected and that the breakers and DC disconnects are located correctly and are easily accessible VI Overcurrent protection Verify that the overcurrent protection on both the DC and the AC side are sized correctly and capable of being changed without touching li
31. ative grounded PV strings OUTPUT DATA GRID SIDE 100 mA rms 2 A peak Max output fault 3 14 A current 13 ms PERFORMANCE DATA Maximum efficiency 97 2 97 2 97 2 97 3 CEC efficiency 96 8 96 8 97 0 97 0 EU efficiency 96 3 96 5 96 7 96 9 Power feed starts at lt 7W Night mode power lt 1W Measurements accuracy AC voltage 2 5V Frequency 0 1 Time 30 ms Max utility backfeed to PV MECHANICAL DATA H 28 35inches 720 mm W 13 9inches 353 mm D 6 5inches 165 mm 6 68 inches 169 5 mm with bracket Conduits and screw terminals DESIGN STANDARDS ENVIRONMENTAL DATA 25 to 60 C 13 to 140 F Possible power derating above 40 C 104 F 40 to 80 C 40 to 176 F User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 9 9 ADDITIONAL FEATURES Topology High frequency transformer galvanic isolation lt 37dB Communication Graphical color display with touch sense buttons 3x LEDs for visual status indication embedded web server Ethernet CAN bus RS 485 bus 10 years 15 years 20 years options 1 00 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 10 2 Field Adjustable Trip Levels Table 10 1 Continental 208Vac Trip Details VALUE DEFAULT SETTING MIN LEVEL MAX LEVEL ACCURACY high trip level Vac Overvoltage 120 ms 50 ms ee fe low trip level low trip time high trip level Vac Undervolta
32. bers e For GUI revisions v1 32 onwards if using a domain name the DNS IP address needs to be specified under Setup gt Network Setup e Be aware that the ISP provider can change the SMTP IP address without any notification If the e mail reports suddenly stops do an nslookup to see if the IP address has been changed N 70 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 2 5 2 Inverter Alarms In Inverter Alarms the settings for notification types and time intervals of the inverter emails to the receiver s must be defined Send production on email 1 Specified time for sending information about energy production to email 1 Send mode on email 1 Immediately sends notification to e mail 1 if operation mode changes Send alarm on email 1 Immediately sends notification to e mail 1 if warning or alarm Send production on email 2 Specified time for sending information about energy production to email 2 Send mode on email 2 Immediately sends notification to e mail 2 if operation mode changes Send alarm on email 2 Immediately sends notification to e mail 2 if warning or alarm Interval Interval between the notifications None Hourly or Daily Notification time Time for daily interval for e mailing information about the energy production Used if interval is set to Daily 6 2 5 3 Portal Setup Portal Setup displays settings for uploading data to a web portal Fifteen minute averaged energy data is uplo
33. connected together via CAN bus the Ethernet cable should be attached to the master inverter only 6 3 1 1 IP Address The computer and the inverter IP address must be in the same range If the inverter IP address is 192 168 10 X the computer IP address must be 192 168 10 Y where X and Y are different numbers between 1 and 254 Inverter The inverter default IP address is 192 168 10 20 To change the IP address navigate to Setup gt Network Setup and set the inverter IP address as required To start the web connection to the inverter open a web browser and type the inverter IP address into the web browser address line Computer The example below shows the steps to be followed on a Windows 7 computer to manually change the computer s IP address This procedure may vary on computers with other operating systems OS User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 73 1 Open the network menu by clicking Start 2 Click Control Panel gt Network and Sharing Center 3 Click Local Area Connection gt Properties 4 Select Internet Protocol Version 4 TCP IPv4 gt Properties 5 Select Use the following IP address Enter the default parameters IP address 192 168 10 10 subnet mask 255 255 255 0 Click OK and OK Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and other countries 6 3 2 With a Network If a LAN or WAN network is avail
34. ct the distributor for replacement fuses No action needed No action needed User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Microprocessor fault W A E20 Grid High AC voltage I E22 Grid Low AC voltage I E23 Grid High AC frequency I E24 Grid Low AC frequency I E25 Grid code not correctly set or internal processor fault Too high AC voltage the inverter stops feeding power Too low AC voltage the inverter stops feeding power The frequency of the grid voltage is above the upper limit The frequency of the grid voltage is below the lower limit User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Check the AC breaker is ON and that the grid voltage is gt 184Vac present at the AC terminals Check that the DC switch is ON and that the DC power is gt 7W Check that the grid settings have been successfully set in Setup gt Grid Setup If the inverter is in Shutdown turn off the AC side and then the DC side Wait for 30 seconds then turn on the AC side and then the DC side If the fault persists contact the supplier The inverter will restart when the voltage is within the permissible range Check that the grid settings have been successfully set in Setup gt Grid Setup If the failure persists contact the supplier The inverter will restart when the voltage is within the permissible range Check that the grid se
35. ction Keys The function keys have the following uses Table 5 2 Function keys Symbol Function Function A Up Scroll up increase value D Rigat Navigate one page or value right y Down Scroll down decrease as Enter Select option go to next value level 4 Left Navigate one page or 3 Cancel Stop operation back to value left previous menu item e The selected item is always highlighted in yellow e Aregistered touch of a button causes a click sound to be heard 5 1 3 Start installation At first power up and with sufficient AC power the display shows the Start Installation screen 48 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 Start Start installation 2 Language Selection Language INSTALLATION MENU 3 Time Format Time format INSTALLATION MENU English Left Cancel Right Ok Enter Confirm Default English Enter Call up the list of languages Up or Down Navigate through the list to find the preferred language English Spanish etc Enter Confirm Right Next Enter Confirm Default 12h Enter Call up the time format list Up or Down Select the time format 12h or 24h Enter Confirm Left Back Right Next Enter Confirm User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 49 4 Date DD MM YYYY 01 Jan 2013 Enter Call up the date Up Increase presen
36. d Neutral Hawaii state 240V Delta with Corner Grounding INSTALLATION MENU Q User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 53 If Grid Code setting fails and the grid code is not correctly set the following window is displayed A Warning Grid settings not set Restart inverter DC and AC and retry With inverters correctly connected in a Master Client configuration a Warning box is displayed if an error occurred during installation Warning Box Possible errors 1 No communication 2 Wrong grid settings warns 3 Sufficient DC power is unavailable on Changing settings unsuccessful to connected clients inverters one or more inverters Check all inverters e Look at the displayed menu and the LEDs on the inverters It is not carried out correctly if the installation menu is still displayed and or the green LED is not lit and the yellow and red LEDs are lit e f the Start Installation screen Is still shown run through the installation process on the individual nverter e An installation timer ensures that the grid settings can be changed using the Owner password within 5 hours of feeding power to the grid Thereafter it is only accessible using the Installer password which may only be obtained for installers and grid operators by contacting Eltek e The selected grid configuration must match that on the actual installation site otherwise the inverter may not operate
37. d sunlight resistance e Secure conductors so that they are kept away from objects that can damage the insulation e g sharp edges The conductors must be listed for PV applications and the site environment and have the correct color coding to avoid material damage and bodily harm 4 3 2 Connection Area AA AI NVA en Ms AS EL iP CAN bus terminal RS 485 terminal Ethernet connection Internal DC terminal blocks POS and NEG Internal DC ground terminal GND PE 6 Internal AC terminal block 7 DC fuse board Stringbox 8 Equipment grounding bar Stringbox SIE i D SS A APNE O1 Figure 4 6 Customer connection area e DC connection can be either a negative or positive grounded PV string configuration e AC connection is performed differently depending on the grid configuration e Network connections are the same regardless of the different DC and AC connection options 28 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 4 3 2 1 Conduits The THEIA HE t UL inverter Stringbox is equipped with covered holes knockouts to fit the recommended conduit fittings e The Stringbox connected to the bottom of the inverter is made of non conductive material and shipped with knock outs for and 1 conduit fittings e The knock outs are located on the left and right sides bottom and back of the Stringbox as specified in the figure below e It is recomm
38. d values from the production data can be viewed by hovering the mouse cursor over the graphs 76 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 4 2 Statistics Statistics gives a graphical overview over the energy production from the current week and the last 12 months THEIA Analyzer Figure 6 16 Statistics e PV plant More detailed information for specific inverters in a plant can be found in the drop down menu under Plant to the right e More detailed values from the production data can be viewed by placing the mouse cursor over the graphs For GUI revision 1 32 and above e The energy log may be downloaded by clicking on the down arrow will be displayed if available e The energy data downloaded is determined by the unit selected in the dropdown box This functionality may not work on certain mobile devices The data may be imported into a spreadsheet program with the data format as follows lt dp time YYYY MM DD HH MM SS gt lt en gt WWWW lt en gt lt pw gt wwww lt pw gt lt var E lt va gt lt dp gt dp Datapoint the date and time stamp of the entry en Energy for the interval in Wh watt hours pw Peak power for the interval in watts User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 7 7 va Earnings savings for the interval with two decimal points in the chosen currency eg 7778 is 77 78 Euros 6 4 3 Setu
39. e Cont 240 D Yv No N Cont 240D 120spl HI 208 D 120Y HI 208 D C gr etc Enter Confirm Back Left Back Enter Confirm Grid code 240 D No Neutral INSTALLATION MENU a 52 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Due to the limitation in the number of characters that can be displayed on the screen the grid codes have been shortened from their full names Please see below for areference list of the abbreviations to relevant full names Table 5 3 Grid code abbreviation Abbreviation Full name Cont 208D No N Cont 208D 120Y Cont 208D C gr Cont 240D No N Cont 240D 120sp Cont 240D C gr HI 208D No N HI 208D 120Y HI 208D C gr HI 240D No N HI 240D 120sp HI 240D C gr Grid Code Selection Please Wait Continental North America 208V Delta with No Neutral Continental North America 208V phase to phase with 120V phase to Neutral Continental North America 208V Delta with Corner Grounding Continental North America 240V Delta with No Neutral Continental North America 240V phase to phase and 120V split phase and Neutral Continental North America 240V Delta with Corner Grounding Hawaii state 208V Delta with No Neutral Hawaii state 208V phase to phase with 120V phase to Neutral Hawaii state 208V Delta with Corner Grounding Hawaii state 240V Delta with No Neutral Hawaii state 240V phase to phase and 120V split phase an
40. e calendar to the left For GUI revision 1 32 and above e The most recent events in the event log may be downloaded as a text file by clicking the down arrow will be displayed if available e The latest events from the clients may be displayed and downloaded This Is only available if the clients also have the same or newer GUI revision as the master unit User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 79 6 4 5 Status Status displays any warnings and alarms in the plant and gives an overview of the plant s technical characteristics and energy yield illegal gnd setting Uninitialized grid setting Self test failure High DC voltage Low DC voltage Low PY isolation resistance Inverter DC side failure Inverter AC side failure High inverter temperature Current Power limitation Comm failure Fan fadure THEIA Analyzer Active power limitation Reactive pcwer compensation Microprocessor fault Gnd High AC voltage Grid Low AC voltage Grid High AC frequency Gnd Low AC frequency Grid High output DC current VDR fault DZ side DNO Remote tr p Extended status 1 Extended status 2 Figure 6 19 Status e Alarms tab identifies any specific warning or alarm in the plant with any activated items highlighted The Extended Status lines are used by Eltek service personnel to help diagnose possible faults e Overview provides input parameters from the PV panels to the inver
41. e World s highest peak efficiency for isolated inverters up to 97 3 e Flexible system configuration e Monitoring 24 7 e Internal data logger with storage capacity of 15 minutes intervals for one week daily intervals for one year or weekly intervals for thirty years e MPPT range 230 500Vpc e DC voltage range 220 600Voc e Automatic ON OFF switching and temperature regulation e Anti islanding protection e Reverse DC polarity protection diodes e Ground Fault Detection and Interruption 2 3 Warning Symbols The warning symbols used in this User Manual highlight important information on how to avoid hazards to people and equipment Pay particular attention when these symbols appear Table 2 2 Symbols appearing in the manual Description DANGER Situations where an immediate hazard could cause serious Injury or death to workers and or the general public if not avoided Situations where a potentially hazardous condition exists that could result in the death or serious injury of workers and or the general public if not avoided CAUTION Situations where a non immediate or potential hazard presents a lesser threat of injury that could result in minor or moderate Injuries to workers and or the general public NOTICE Situations where a non immediate or potential hazard presents a risk to damage of property and equipment May be used to Indicate N important operational characteristics There is no Safety Alert
42. e between the Stringbox and the Inverter e Pull the inverter up and slide it out of the mounting bracket User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 93 Figure 8 8 Dismounting of the inverter 8 3 2 Replacement e Slide the new inverter carefully onto the mounting bracket 1 2 below Refer to 4 1 2 Inverter e Check that the connection holes on the inverter E F and G below and on the Stringbox H are aligned 3 e Guide the fixing plate I into the slot between the inverter and the Stringbox 4 e Fasten the screws J and K with a torque of 1 48 ft lbf 2 0 Nm y ooo0oo anii e en s mya amp PEST ul J SIFIE rien layna m i a had aah TAA AS sie ive 4 ay t gt m Figure 8 9 Procedure for replacing the inverter 94 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 It is possible to add new inverters or replace existing inverters in a PV system Client e If the replaced Inverter is a client the master inverter will automatically identify the replaced device and put It into operation e The device number Is automatically maintained Master e f the replaced inverter is the master and master functionality is desired an existing inverter needs to be set up as master This is done in Setup gt Network Setup Set as Master uni
43. e checksum The DSP1 bootloader software part number Bootloader revision number for the DSP1 software The DSP1 bootloader software checksum DSP card hardware part number Version name for the DSP control card hardware Identifier for the PCB hardware Unique revision number for keeping track of the development of different main board revisions The DSP2 software part number User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 65 SW2 Revision Revision number for the DSP2 software SW2 CS The DSP2 software checksum SW2 BL Part No The DSP2 bootloader software part number SW2 BL Revision Bootloader revision number for the DSP2 software SW2 BL CS The DSP2 bootloader software checksum 1 GUI Graphical User Interface which allows interaction with the inverter through the display 2 DSP Digital Signal Processing which is a microprocessor controlling the power conversion in the inverter 3 PCB Printed Circuit Board which hosts all the components and subsystems of the inverter 6 2 3 4 Plant Setup Plant Setup displays useful information about the PV plant which can be changed using the Owner password Company Customer Name The customer owner name Site The site name Installation Date May be used for setting the install date Service Date May be used for setting the most recent service date Responsible Field for keeping a note of the company person responsible for service Unit Name This text strin
44. e section shows the operation mode Refer to Table 6 3 for the eight different modes options The right section shows the serial number of the inverter which is also to be found on the product label 60 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Enter Confirm lt Today gt 135Q00m s is 3900 Wp 4400 2200 A 00 04 08 12 16 20 24 Figure 6 5 Upper display area of the home screen Table 6 2 Inverter status Status Up or Down Navigate in the screen Normal inverter operates with no warnings or alarms Warning inverter still operates but there is a warning Alarm inverter in shutdown there Is an alarm Info inverter still operates but there is additional information available Green Green amp Yellow Red Green amp Yellow Off Input power is not sufficient to start the power control circuitry Sleeping automatic shutdown Input power is not sufficient to start up Start Up initialization of input values and grid conditions Running grid feeding against overheating Shutting Down inverter in shutdown mode Shutdown inverter system failure or unstable operational conditions O amp De rating output power is reduced to protect the inverter Gs Service Mode inverter can be manually overridden User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Yellow Yellow Green amp Yellow Gre
45. en Green amp Yellow Yellow Red Yellow 61 6 2 1 2 Lower Display Area The lower section contains a shortcut to the Main Menu and shows the current date and time running 123456789123 0 0 in the screen A Today gt 13 0 0m 5 k 3900 Wp 4400 00 04 08 12 16 20 24 LESA 16 Feb 2013 02 43 PM Figure 6 6 Lower display area of home screen 6 2 2 Status Status displays the operating mode and status of the inverter and the PV plant All the values are read only Up or Down Navigate through the submenus Enter Select a submenu confirm STATUS Figure 6 7 Submenus of Status 6 2 2 1 Active Alarms Active Alarms displays detailed information about the current operating mode and status signs appearing in the upper left corner of the Home screen Refer also to 7 2 Table of Events 62 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 2 2 2 Inverter Status Inverter Status displays the operating mode status and operating parameters of the inverter Inverter Mode Inverter Error Input Parameters Output Parameters Inverter Peak Power Energy produced today Temperature Isolation Resistance Operating Hours Apparent Power VA Extended Status 1 Extended Status 2 The inverter has 8 different modes Refer to Error Reference source not found The inverter has 3 different status levels Refer to Error Reference source not found Current volt
46. ended to use a hole saw to remove the knockouts to ensure the hole is even for fixing of the conduit Figure 4 7 Knock outs on the Stringbox Figure 4 8 Removal of the knock outs e Use a 1 hole saw to remove the knock outs for the fittings and 1 16 hole saw to remove the knock outs for the 1 fittings e Position the hole saw in the middle of the knock out face e Drill through the cover e Carefully file down any rough edges NOTICE For conduit hubs use only UL Listed raintight or wet location hubs for entry into the enclosure Conduits are connected to the Stringbox as follows e DC conduits are mounted on the bottom of the Stringbox e AC conduits are mounted on the right side of the Stringbox e Network conduits are mounted on the left side of the Stringbox N Listed conduit fittings that fulfill the following criteria should be used for the THEIA HE t UL Stringbox knock outs User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 9 Figure 4 9 Size criteria for conduits to fit the Stringbox knock outs Table 4 1 Recommended size for the conduits 1 1 9 28 8 mm 1 39 7 35 8 mm 2 7 7 0mm 1 7 35 5 1 9 14 42 5 mm 1 1 12 45 3 mm mmo gt NOTICE Follow the guidelines from the conduit manufacturer regarding connection grounding and tightening torque N 4 3 3 Grounding Proper grounding of the entire PV system limits v
47. erter The Start Up can then be carried out on any inverter and if configured as the master inverter the configuration settings of time date language and grid settings will be transferred to all the other client inverters on the network e Each client inverter is automatically assigned an ID number from the master during Start Up NOTICE If multiple inverters are connected together all inverters must be connected to the CAN bus and receiving sufficient AC and DC power before Start Up to benefit from single installation setup N 46 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 RS 485 e Connecting the inverters via the RS 485 bus enables communication with certain 3 party equipment In an RS 485 network the 3 party equipment will act as a master while all inverters will become clients e Each inverter must be assigned an ID number a bit rate number and a parity number manually The ID number must be between 1 and 247 Both the master inverter and the client inverters require a bitrate number and a parity number Determine the setup in the 3 party equipment e g an external data logger and program these numbers in the Inverter by accessing the network menu on the Inverter display Refer to section 6 2 3 2 Network Setup for further details Default bitrate 19200 Default parity even e The RS 485 communication is compliant with Sunspec Modbus specifications 5 1 2 User Inte
48. ety precautions and instructions in this User Manual must be read thoroughly to be able to install and operate the inverter correctly N 3 1 1 Connections Contact the local utility company for interconnection agreements and power approval before connecting to the grid To ensure safe and correct electrical connection of the inverter and prevent injury to persons or damage to the equipment the electrical wiring and connection must be performed by qualified persons Never work with energized ports Prior to the electrical connection the AC circuit breaker s and the DC switch must be turned OFF to ensure that the terminals are discharged and safe to work on e Read the instructions and cautions on the PV modules prior to the electrical connection e The inverter must be connected to a dedicated AC circuit No other devices are to be connected to this circuit 1 6 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 3 1 2 Operation The inverter must only be operated in accordance with the instructions in this User Manual NOTICE The THEIA HE t UL is a grid interactive inverter and must be used exclusively for its designed purpose which Is to convert PV generated DC electricity into AC electricity to feed into the grid N e The inverter must be operated without any unauthorized modifications e To avoid damage to the inverter it must be used within the operational limits given in
49. ew password Installer Read and write access to all levels and set values The Installer password is based on the inverter serial number If the password Is lost or forgotten please contact Eltek to obtain a new password It will require the inverter serial number NOTICE Any change of setting needs a password Once the password has been entered modifications must be done within 1 minute before the access resets to Guest level N 6 2 LCD Screen Menus To navigate in the LCD screen the six function keys must be used By selecting one of the seven items in the Main Menu a further navigation through different submenus is possible There are four different menu levels 58 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Status oe Setup Commands Ms Alarm Setup Event Log Statistics MAIN MENU Figure 6 1 LCD screen interface Home Status Event Log Statistics The information and values are read only Setup Commands Alarm Setup The information and values can be modified 0 Padlock Opens up when correct password is entered Lines Number of highlighted lines indicates the current menu submenu level with the top line being the first level Main Menu e To activate the display when the screen saver is active blank press any key 6 2 1 Home tnt Home ts the standard display which is always shown if no buttons are touched within the screen timeout interval which Is
50. g is displayed in the master unit s list of connected inverters Message An extra message field for additional notes Plant Apparent Power The product of voltage and current from the entire PV plant kVA 6 2 3 5 Grid Setup The Grid Setup displays the grid settings based on the selected country The settings can be changed within 5 hours after the installation using the Owner password Thereafter it is only accessible by using the Installer password which will only be available to the installer by contacting Eltek Field Adjustable Trip Limits The system installer may change the grid settings according to electrical regulations The Installer password is needed to change these settings 1 Voltage 208 VAC Delta No Neutral 120 WYE Corner Grounded Table 6 4 Adjustable voltage trip limits for 208 Vac Trip Limits Trip Voltage Trip Time Min Max Min Max Low limit 180 0 Vac 208 0 Vac 50 ms 1 95s Low and fast limit 104 0 Vac 208 0 Vac 50 ms 120 ms High limit 208 0 Vac 249 6 Vac 50 ms 950 ms High and fast limit 208 0 Vac 249 6 Vac 50 ms 120 ms 66 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 240 Vac Delta No Neutral 120 Split phase 120 Stinger Corner Grounded Table 6 5 Adjustable voltage trip limits for 240 Vac Trip Limits Trip Voltage Trip Time Min Max Min Max Low limit 180 0 Vac 240 0 Vac 50 ms 1 955 Low and fast limit 120 0 Vac 240 0 Vac 50 ms 120 ms High limit 240 0 Vac 270 0 Vac 5
51. ge 1 95 s 50 ms 1 95 s fightipime HE low trip level low trip time trip level Vac Over frequency 80 ms 50 ms 80 ms 30 ms trip time trip level trip time Table 10 2 Continental 240Vac Trip Details VALUE DEFAULT SETTING MIN LEVEL MAX LEVEL ACCURACY high trip level high trip time low trip level low trip time high trip level high trip time low trip level low trip time trip level trip time trip level trip time User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 0 1 ADDENDUM Due to continuing product improvements and legislation changes the specification and functionality of the THEIA HE t inverter described in the included documentation may not match the specifications and functionality of the delivered inverter 100 A typical example is when firmware updates have been applied to the inverter post manufacture Complete inverter user information can be found in the THEIA HE t UL User Manual The latest version can to be found at www eltek com 1 02 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 CONTACT INFORMATION Eltek Inc Americas Headquarters 2925 E Plano Parkway Richardson TX 75074 USA Phone 1 469 330 9100 Fax 1 972 424 0885 Web www eltek com us E mail customer support us eltek com Service e mail techsupport us eltek com NA Sales e mail sales us eltek com Outside North America find your loca
52. ge the grid code settings The Installer password is obtained for system installers and grid operators only by contacting Eltek e The question Change grid settings appears in the display User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 7 OK Continue Cancel The operation is cancelled Change grid code GRID SETUP Up or Down Select the respective grid Enter Confirm A Cont 240D No N GRID SETUP a After the grid settings are changed the screen will return to the Grid Setup screen showing the newly configured grid settings 6 2 4 Commands S Commands give the ability to delete stored data in the inverter logger using the Owner password ttal Plant Commands Up or Down Navigate through the list Enter Select a submenu confirm COMMANDS Figure 6 9 Submenus to Commands 68 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 2 4 1 Inverter Commands Inverter Commands gives the ability to delete events saved in the inverter data logger to provide storage space Delete Energy Log Deletes the energy log items and summarized values of the inverter Delete Data Log Deletes the 15 minutes average power values of the inverter Reset Web Admin Account Resets the web administrator account back to default User is set to admin and Password to admin Upload service diagnostics Generates service FTP dump of logs data energy and events and u
53. ide and outside for signs of thermal and mechanical damage Replace frayed conductors immediately 8 2 3 Electrical Connection Regularly check that the terminals and plugs are firmly tightened and that the insulation is not deteriorated or corroded Do not forget the combiner box 8 2 4 Fuses Circuit Breakers Frequently blown fuses or tripped circuit breakers are a clear warning sign of overload short circuit or ground fault e Always determine the reason for blown fuses tripped circuit breakers prior to replacement resetting e The replacement resetting must be performed by qualified persons only 8 2 5 DC Fuses Ground Fuse IF a DC fuse blows the following message will appear in the display Fuse fault Refer to 7 2 Table of Events The photovoltaic modules panels deliver power when exposed to light and produce hazardous voltages which is still present at the terminal blocks and fuse holders after switch OFF Do not replace the DC fuses when the PV modules are exposed to light 88 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Replacement Procedure e Turn OFF both the AC circuit breaker s and DC switch Always disconnect both the DC and AC sides before opening the inverter s lower cover due to the risk of shock hazards e Remove the inverter s lower cover Refer to 2 4 5 Inverter Enclosure e Check that the terminals are voltage free e Always check the cause
54. inated to the same labeled terminals at both ends i e H connected to H L to L etc Applying 0 15 ft lbf 0 2 Nm of torque RS 485 The conductors must be terminated to the same labeled terminals at both ends i e A connected to A B to B etc applying 0 15 ft lbf 0 2 Nm of torque to tighten e Tighten the conduit fittings firmly Figure 4 21 CAN and RS 485 connection pin out User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 43 4 3 6 2 Jumper Position for Termination Resistance When several inverters are connected the jumper located behind the CAN RS 485 terminals activates the termination resistance when the pins are terminated short circuited This minimizes signal reflections in the cables and helps to avoid interference e Single inverter The two pins can be terminated or disconnected e Several inverters connected The master client configuration requires terminated pins on the first inverter and on the last inverter in the linked series The pins must be open on the inverters between the first and last inverter in the linked series e To disconnect the pins the jumper must be pulled up and placed only on one of the pins e Be careful not to bend the pins when removing or installing the jumper Table 4 4 Jumper position for the termination resistance Connection Area Jumper Position Pins The pins are terminated The pins are disconnected 1 CAN termination resist
55. inverter close to the body 1 2 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 4 3 Unpacking Unpack the inverter as follows e Place the box in position with the top clearly visible and according to the arrow markings on the packaging e Cut the seal and open the box e Remove the upper part of the foam packing material and take out the Installation Guide and the envelope with the extra product label e Both sides of the inverter case are narrowed in order to get a better grip on the inverter Lift the inverter carefully out of the box using the handles as illustrated in Figure 2 3 e Remove the lower section of the foam packaging and take out the inverter mounting bracket e The bag with accessories is attached to the bracket e Store all the original packing material for possible later reuse After unpacking the inverter check that all components are included and undamaged 2 4 4 Scope of Delivery e THEIA HE t UL single phase inverter e Mounting bracket e Installation Guide e Accessories grounding strap bracket screws extra product label NOTICE Conduits fittings and bonding straps are not part of the standard scope of supply and must be provided by the system installer N 2 4 5 Inverter Enclosure The housing of the THEIA HE t UL inverter is designed to e NEMA 3R or 4X depending upon model for indoor and outdoor use e Provide a degree of protection fr
56. ive state 8 4 2 Disposal In case of return as a result of end of service life the inverter can be returned to the distributor or disposed in the respective country Shipping to the distributor is paid by sender Recycling and disposal of the THEIA HE t UL inverter must be done according to the rules and regulations applicable in the state of disposal All material used for the inverter packaging Is recyclable 96 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 9 WARRANTY The inverters are compatible with all relevant standards and are guaranteed to be free of manufacturing defects from the date of purchase Please refer to the Warranty documents on Eltek s web site www eltek com for more detailed information about the warranty of the inverter If any questions please contact your Inverter supplier or the Eltek office in your territory 9 1 Warranty Service The standard warranty applies for 10 years with an optional extension of up to 20 years To maintain the full warranty period the inverter must be installed within 6 months after the date of purchase NOTICE To maintain the warranties the inverter must be installed operated and maintained according to the instructions detailed in this manual and all the applicable local regulations N 9 2 Warranty Disclaimer The warranty is void by misuse or when unauthorized repairs are performed on the inverter The warranty does not co
57. l office at www eltek com User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 03 www eltek com
58. lified persons during the electrical installation and maintenance or repairs e No unauthorized modifications may be made to the inverter Contact the system installer or distributor in case of failure e Regular maintenance must be performed to maximize the life expectancy of the inverter refer to 8 2 Regular System Inspections e A safety component must always be replaced by the same type and rating 3 2 Site Preparations Observe the following precautions when mounting and installing the THEIA HE t UL inverter on a suitable site This is crucial to maintain the efficiency of the inverter 3 2 1 Mounting Location Sufficient ventilation and low ambient temperature are needed to prevent temperature build up inside the inverter which can result in power losses Insufficient cooling may lead to degradation of performance Ensure sufficient air space around the inverter and unblocked ventilation openings for optimum cooling and efficient operation e Observe the minimum distances specified below to maintain optimal cooling 1 8 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 1 15 75 inches 400 mm 2 11 81 inches 300 mm 3 5 91 inches 150 mm I 4 5 91 inches 150 mm Figure 3 1 Minimum distances for optimum cooling The mounting surface must be suitable for the weight 44 49 lbs 20 22 kg and temperature 194 F 90 C of the Inverter e The inverter must be mounted in a ver
59. llation operation and maintenance of the inverter Ignoring these instructions may have serious consequences and may invalidate the warranty Qualified persons Persons involved in installation operation and maintenance of the inverter must be Suitably qualified and follow the instructions in this User Manual Safety Protection The inverter offers a maximum level of safety to protect persons and equipment during installation operation and maintenance A high frequency transformer ensures galvanic isolation between the inverter and the grid Anti islanding protection monitors the grid preference and ensures interruption of the inverter s Supply of power whenever the grid voltage or frequency fluctuations are outside the required limits A Ground Fault Detection and Interruption circuit ensures disconnection from the grid if a ground fault occurs Warning Signs Three different warning signs highlight important information related to avoidance of personal injury and equipment damage Pay attention when DANGER WARNING and CAUTION appear in the text Electrical Codes The electrical installation must comply with the local regulations the National Electrical Code NEC ANSI NFPA 70 and OSHA regulations User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 III IV User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 CONTENTS Introduction aa a aa aaa anna 7 2 Product Overview a
60. lower compartment This is to monitor the voltage between ground and the grounded phase 4 3 6 Network Connections The inverter is equipped with three communication interfaces Ethernet CAN and RS 485 Ethernet provides communication between the integrated web server and a computer either directly connected or via a router switch CAN allows communication between several inverters RS 485 allows communication with certain third party equipment Client inverter Master inverter CAN bus cable Ethernet cable RS 485 cable Computer Data logger NOUR WNE Figure 4 19 Connection without network 4 3 6 1 Connection Procedures If several inverters are connected together all inverters must be connected to the CAN bus prior to the Start Up procedure to benefit from single installation setup 42 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 Figure 4 20 Network connection 1 CAN bus terminal 3 Ethernet port 2 RS 485 terminal 4 Cable gland e Ethernet Use CAT5 or better with size 24 AWG 0 21 mm and a maximum total length of 100 m e CAN Use a cable size of 26 AWG 0 13 mm with a maximum total length of 500 m e RS 485 Use a cable size of 26 AWG 0 13 mm with a maximum total length of 1200 m e Terminate the cables at the terminals in the connection area as follows Ethernet Plug the Ethernet cable directly into the RJ45 port CAN The conductors must be term
61. lso direct sunlight may cause degradation of the LCD screen quality The inverter should be installed on a location where people cannot accidentally come in contact with the rear inverter surface due to temperatures up to 194 F 90 C e The inverter is suitable for outdoor operation but should be sheltered from direct Sunlight snow and rain dust and sand e Inverter location should be in close proximity to the PV arrays to minimize DC losses 3 3 Required Safety Equipment Compliance with the local and federal electrical regulations is required to satisfy the safety equipment requirements NOTICE Safety equipment must be provided and installed by the system installer in compliance with NEC to ensure the required protection of the PV system Is adequate N 3 3 1 Disconnection Devices Disconnection devices switches or circuit breakers enable a shut off from the power source during operation They protect the current carrying conductors and other system components from power surges and system malfunctions and help to shut down the inverter safely for maintenance and repairs e Both AC circuit breaker s and DC switch are recommended on every current carrying conductor to facilitate maintenance work and repairs of the inverter 2 0 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 e The disconnect devices must conform to the local and federal electrical regulations and have an inter
62. ms are OK and there is still no power fed to the grid contact your distributor 7 2 Table of Events The inverter automatically identifies operational issues and displays the messages on the screen Detailed information about warnings and alarms can be found in the Event Log menu Refer to 6 4 4 Event Log Messages that can appear in the display W Warning inverter continues to operate at highest possible capacity Yellow LED A Alarm Red LED The Display Message code number E01 E02 etc is the code shown in the event description as displayed in the Event Log of the webserver view User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 8 1 Table 7 1 Description of messages appearing in the display during inverter failure Display Message Panel fault W A E01 Illegal grid setting W A E02 Uninitialized grid setting W E03 Self test failure W A E04 Grid fault I A E05 High DC voltage I A E07 82 Description PV module failure Grid settings check sum error No detection of the grid or grid setting never stored For Italy int SPI self test Self test has failed No detection of the grid not able to synchronize with the grid or fault when setting the grid settings DC voltage threshold of 600 Vocis exceeded Action Contact the supplier Verify if the AC circuit breaker is ON and operational Measure that the grid voltage is gt 1
63. nch Italian etc The time format must be set during installation 24 h default 12 h Current date must be set during installation Current time must be set during installation Used to define the time zone used for FTP data upload Owner password must have 4 digits Default is 0003 Avoided CO emissions based on 0 7 kg kWh Feed in tariff in the respective country Valid currency in the respective country ON time for the display backlight Power saving can either be ON or OFF during nighttime Enabling this option turns the GUI off 15 minutes after the inverter enters OFF mode ie night time to save power Only applicable for client inverters User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 2 3 2 Network Setup Network Setup displays the settings for the connected network which can all be changed with the Owner password Refer to 6 3 Connection between Inverter and PC NOTICE All IP addresses related to the inverter and web must be configured within the range that is allowed by the local network N Network IP Address Static DHCP Network Subnet Mask Network Gateway DNS server IP Bus ID RS 485 RS485 bitrate Unique network address for the inverter Indicates whether the IP address is static or dynamically assigned Determines what subnet the IP address belongs to Network point acting as entrance to another network The DNS IP address The inverter s identification number on
64. nded Strings Negative Grounded PV String Positive Grounded PV String VY seele V am GND PE fics SS a Figure 4 14 Negative grounded PV string Figure 4 15 Positive grounded PV string To change from Negative ground to Positive ground e Terminate the positive conductors at the terminal block labeled 2 Grounded in the Stringbox e Terminate the negative conductors at the terminal block labeled 1 Ungrounded in the Stringbox e Terminate the grounded positive conductor from the fuse board at the POS terminal block in the inverter lower compartment e Terminate the ungrounded negative conductor from the DC switch at the NEG terminal block in the inverter lower compartment e Tightening torque is 1 47 ft lbf 2 0 Nm for all terminals 34 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 4 3 4 5 Connection Procedures e The DC voltage on the conductors connecting the PV array to the input of the inverter must have a maximum rating of 600Vpc at any operating temperature e The DC conductor must be sized for correct temperature rating and sunlight resistance Use copper conductors between 10 AWG and 6 AWG 6 mm and 16mm and temperature rating of 194 F 90 C for all connections e Follow the safety instructions and specifications from the module manufacturers regarding installation e Terminate the ungrounded conductors at the terminal block labeled 1 Ungrounded and tighten
65. ng screen will be displayed Please Wait Collecting data No of inverters xx INSTALLATION MENU a 8 Grid Configuration Earthing System Enter Call up the list of grid configurations Up or Down Select the grid configuration of the actual installation site TN TT IT Undefined Grid configuration Enter Confirm Left Back Right Next INSTALLATION MENU amp Enter Confirm User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 5 1 9 Feeding Phase Enter Call up the list of phases Feeding Phase ID 1 SN 123456789123 Up or Down Select the preferred phase If configured for TN TT Not set L1 L2 L3 If configured for IT Not set L1 L2 L1 L3 L2 L3 Enter Confirm Left Back Right Next INSTALLATION MENU amp Enter Confirm If the inverter is set to master and there is more than one inverter in the plant the following screen is displayed Feeding Phase Information Each Inverter in the plant must be configured through master or each inverter individually Do you want to configure through the master Cancel Ok INSTALLATION MENU G If the inverter is configured as master step through and set the feeding phase L1 L2 L3 L1 L2 L1 L3 or L2 L3 as required for all client inverters 10 Grid Code Enter Call up the list of grid configurations A Up or Down Select the grid setting of the actual installation sit
66. nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnen 76 7 Troubleshooting 81 7 1 Crack IS EDV FU een 8l 7 2 Table of Events cccccccccccccccececececeeeeeccececececececeeecececcccescssccssssscscssssscscscscscscesseeee 81 8 Mate ee ae ee Eee en 87 8 1 SWIECH OFF vesasiavsvsveccceescsosersusevsaecavdvoesdeeeevsuvnveddencusoseeccorpeeccsucdecessseeayvevvabeessucusussesuns 87 8 2 Rep ldr System ISD SCHONNS ssion es cenenge na ier aea eaa aE NENEN 87 8 3 Replace DOVICOS ea a ee 93 8 4 eC UM and ISOS A en 95 i LN A ge cee NEE NN A FERIENSERIE E 97 9 1 NEIL ONE OO 611 ee eee eee ene ee eee ee ee 97 9 2 War anly Disc Alt een 97 10 Technical Da a nee een 99 10 1 Inverter dataShe et ccccccccccccccceecscssssscscscscecscscececeeeeeeececeeceecececececseecececececens 99 10 2 Field Adjustable Trip AGUS einen 101 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 V Addendum Contact Information a a nr 103 VI User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 INTRODUCTION The THEIA HE t UL inverters are among the most efficient single phase grid tie inverters on the market which results in high yields from the solar array BA a Qin Figure 1 1 PV system overview DC to AC In a grid connected photovoltaic system the interface between the solar array and the grid consists of an inverter which converts DC power produced from the solar ar
67. of the defective fuse prior to replacement e DC Fuses Measure the voltage and current If the voltage is close to or O Voc or there is a measurable current do not remove the fuse holder Recheck wiring for dead shorts or reversed polarity e Ground Fuse Measure one string at a time The voltage between the positive and the ground terminal block and then the negative terminal and the ground terminal block Both voltage measurements should be equal to the open circuit voltage Voc divided by 2 If the measurements are different there is a ground fault Repeat for each string e If the voltage and current measurements are correct remove and replace the defect fuse s e Always exchange the fuses with the same type and rating Bu hs 10 31 1 50 7 4067 Figure 8 1 Dimensions of the DC fuses ground fuse e Make sure that the replaced fuse s is completely inserted In the fuse holder and insert the fuse holder e Fasten the inverter lower cover firmly Refer to 2 4 5 Inverter Enclosure e Turn on the AC circuit breaker s and the DC switch 8 2 6 DC Disconnect Switch To prevent welding of the contacts thereby extending service life the DC switch es must be operated at least once every 12 months preferably at night or when the AC is OFF 8 2 7 Inverter The interior of the inverter must be checked by the system installer for humidity and dust every 3 4 years User Manual THEIA HE t UL String Inverters 35
68. oltage surges gives a common reference point for the conductive parts and facilitates the operation of the overcurrent protection devices Grounding should be carried out by qualified persons only and comply with local and national electrical regulations to prevent shock hazards e The AC input and AC output circuits are isolated from the enclosure and that system grounding if required by Section 250 of the National Electrical Code ANSI NFPA 70 is the responsibility of the installer e The Photovoltaic System Grounding shall be installed per the requirements of Sections 690 41 through 690 47 of the of the National Electrical Code ANSI NFPA 70 and is the responsibility of the installer e PV strings may have the negative or the positive conductors grounded The grounded conductors are terminated at the equipment grounding bar in the Stringbox via the GFDI Figure 4 6 pos 8 30 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 e All metallic conduit fittings shall also be bonded to the equipment grounding bar in the Stringbox Figure 4 6 pos 8 e Follow the instructions and specifications from the different PV module manufacturers regarding grounding requirements e All metal parts of the THEIA HE t UL inverters are electrically bonded to ground through the terminal GND at the AC terminal block Figure 4 6 pos 6 Grounded PV conductors are grounded via the GFDI to the grounding bar in the Stringb
69. om falling dirt rain sleet snow windblown dust splashing water hose directed water and corrosion e Be undamaged by the external formation of ice on the housing User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 13 2 4 5 1 Mechanical Dimensions H 28 3 inches 720 mm W 13 9 inches 353 mm D 6 2 inches 158 mm m 3 Figure 2 4 Mechanical dimensions 2 4 5 2 Front Covers The front surface of the inverter consists of an upper and a lower cover 1 Upper cover 2 Display 3 Lower cover with DC disconnect switch 4 Hole covers Knockouts Figure 2 5 Inverter structure The upper cover may be removed by Eltek authorized persons only Removal of the upper cover by unauthorized persons voids the warranty The lower cover protects the customer connection area and may be removed by the system installer for electrical connection and maintenance 2 4 6 Removing the Lower Cover The lower cover protects the connection area in the inverter and also the inbuilt combiner box called the Stringbox The lower cover Is equipped with a DC switch on the front which make it easy to de energize the DC terminals on the inverter 1 A User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 The inverter is charged with high voltages and removal of the lower cover may only be performed by qualified persons 1 Turn OFF the AC circuit breaker and the DC switch
70. ox and must NOT be grounded at any other point in the system as voltage potentials can appear and possibly damage electrical components 4 3 4 DC Connections PV The DC connections include wiring from the PV modules through a combiner box to the inverter The inverter is configured with a Stringbox Always disconnect the PV array before starting the DC connections as the PV array can supply up to 600 Vec to the inverter when exposed to sunlight NOTICE When removing the lower cover to access the connection terminals ensure that the DC switch is in the OFF position N 4 3 4 1 DC Terminals ceriliss POS NEG User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 3 1 The incoming PV conductors shall be terminated at the 1 Ungrounded Terminal and 2 Grounded Terminal inside the Stringbox F1 F2 F3 DC fuse holders F4 Ground fuse holder GFDI 1 Ungrounded Terminal Terminal block for the ungrounded PV conductors 2 Grounded Terminal Terminal block for the grounded PV conductors N Receptacle for monitoring the voltage between phases and Ungrounded Grounded neutral Vernal G FERN N N Terminal block for the neutral conductor Figure 4 11 Fuse board in the Stringbox The PV conductors go through the DC switch in the Stringbox and are then terminated at the POS and NEG terminal blocks in the lower inverter compartment POS Positive
71. p Setup shows the different settings and information of every inverter in the PV plant THEIA Analyzer Figure 6 17 Setup e Plant Information shows important characteristics of every inverter in the PV plant Model serial number revision and part no information are all read only e General Settings shows date and time CO rating and rate and currency of the earning All settings can be modified e Alarm Setup shows information related to notifications and alarms from the inverter plant Notification Setup Type username and IP address host name of the SMTP server the IP address of the inverter and mail address of the receiver s Alarm Setup Type time for sending email messages 0 23 h and the interval of the messages 1440 min 1 day Portal Setup The inverter may upload energy data to an FTP server Specify the server address either IP address or DNS in the FTP Server IP field and optionally a username and password if needed The data will be uploaded every hour Note only an inverter configured as a master will upload FTP data For third party FTP services an additional cost may be applied 78 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 e Network shows the parameters related to the sending and receiving of email messages Type the IP address configured with numbers like 192 168 10 20 network subnet mask and gateway Refer to 6 3 1 1 IP Address e User Account shows
72. pload it to an FTP server for service purposes 6 2 4 2 Plant Commands Plant Commands gives the ability to delete events saved in the data logger of the master inverter to provide storage space Delete Energy Log Deletes the energy log items and summarized values of the plant Delete Data Log Deletes the 15 minutes average power values of the plant Reset Number of Inverters Update if inverters are added or removed from the plant Rebuild plant energy log Rebuilds the plant energy log based on the energy logs of the inverters currently connected and running in the system This process may take several minutes AM 6 2 5 Alarm Setup amp Alarm Setup enables configuration of an email account so the inverter can send information about energy production status and operation mode to one or more receivers Changes require use of the Owner password Up or Down Navigate through the list Enter Select a submenu confirm 2 Inverter Alarms Portal Setup ALARM SETUP Figure 6 10 Submenus to Alarm Setup 6 2 5 1 Notification Setup In Notification Setup parameters needed for the inverter to send notifications about mode and status on e mail must be typed in User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 6 9 SMTP Server The IP address of the SMTP server for enabling delivery of emails Can only be an IP address ie numeric SMTP port Sets the SMTP port number for SMTP server Default Is 25
73. racket components Assemble the bracket as follows 24 114 6mm 21 11 16 551mm 19 3 32 485mm Figure 4 2 Assembling of the wall bracket User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 Fix the drilling template onto the mounting surface and using a spirit level ensure the template is correctly leveled 2 Using the guide holes on the drilling template drill holes into the mounting surface suitable for inch fixings of a type relevant to the mounting surface and weight of the inverter 3 Remove the drilling template from the mounting surface 4 Fasten the inverter bracket to the wall with a minimum 2 screws The installer is responsible for selecting the correct dimension of the screws The holes in the bracket have a diameter of inch 5 The correct distance between the inverter bracket and the Stringbox bracket is D3 19 t g 4 Fasten the Stringbox bracket to the wall with minimum 2 screws The holes in the Stringbox bracket have a diameter of inch The distances between the screws CC 3 Te coi i CCl 3 CC2 6 CC3 7 CC4 2 CC5 3 D1 21 4 0 D2 21 W 4 0 Figure 4 3 Distances between the fasteners User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 25 4 1 2 Inverter Attach the inverter to the mounting bracket as follows f al TLL ye
74. ray into AC power compatible with the voltage and frequency of the grid THEIA HE t UL series The topology of the THEIA HE t UL series consists of an embedded high frequency transformer which provides galvanic isolation from the grid thereby meets the strictest safety standards Because of great adaptability and user friendliness the THEIA HE t UL is the perfect choice for any photovoltaic PV installation Different configuration options make it suitable for crystalline as well as thin film modules and make It easy and affordable to configure for various conditions and country Specific requirements The compact and lightweight construction provide for easy and straightforward installation and maintenance Integrated Web Server The inverter is equipped with an integrated web server which records data ona daily monthly and yearly basis All information is displayed alpha numerically and in graphs on a colored LCD screen on the front of the inverter The data is also accessible either directly from a PC or via the Internet All settings and data are saved in the integrated logger which provides storage of data with fifteen minute intervals for one week daily intervals for one year or weekly intervals for thirty years Automatic System The system is fully automatic The inverter starts up in the morning when the solar array generates enough power During the day the maximum power point tracking User Manual THEIA HE t UL String Inverter
75. regulations HT S NO Serial Number for inverter identification S No 104801 100008 2 3 1 2 PCB Labels The PCB labels identify important information about the different terminals in the customer connection area User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 1 Table 2 4 Symbols appearing on the PCB Description Description rn AC Alternating current DC Direct current terminal terminal Grounding Ground terminal 2 4 Unpacking and Inspection Follow the instructions in this section to unpack and lift the inverter safely and to prevent injury and equipment damage 2 4 1 Shipping Damage The THEIA HE t UL inverters are thoroughly checked and tested In accordance with international standards and approvals prior to shipping The inverter is carefully packed before shipping However if any damage to the inverter Is found when unpacking please report it to your distributor immediately 2 4 2 Lifting and Carrying the Inverter Lifting and carrying the inverter must be correctly performed to prevent back Injuries as the inverters weight is 49 53 lbs 22 24 kg depending on model Figure 2 2 Correct lifting of the inverter e When lifting bend the knees and keep the back straight e Lift carefully hold the inverter close to the body and let the leg muscles do the work e Turn the whole body as one unit to avoid twisting the lower back e Carry the
76. res to ensure trouble free operation of the THEIA HE t UL inverters Finally it is explained how to remove and return the inverters 8 1 Switch OFF Always turn OFF and disconnect the inverter in the following order prior to maintenance work or repairs Never perform work on the Inverter without disconnecting both the DC and AC side because of deadly voltages present at the terminals DC side e Turn OFF the DC switch e Disconnect the connectors AC side e Turn OFF the AC circuit breaker s e Let the DC capacitor bank discharge Lethal voltages may be present inside the inverter after switch OFF because of a charged capacitor bank It must be discharged for 1 hour before performing service or maintenance work on the inverter 8 2 Regular System Inspections The THEIA HE t UL inverters are designed and manufactured to operate trouble free for several years Performing regular maintenance will ensure high efficiency and a longer service life for the inverter N User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 8 NOTICE Only permit qualified persons to perform the work inside the inverter Maintenance work involving removal of the inverter s lower cover must be performed by qualified persons only due to the requirements of the product warranty 8 2 1 Modules Maintain the PV modules as recommended from the manufacturer 8 2 2 Cables Regularly check all cables ins
77. rface The User Interface on the front of the inverter contains a LCD screen three LEDs and six function keys 5 1 2 1 LCD Screen To navigate in the LCD screen the six function keys must be used By selecting one of the seven items in the Main Menu a further navigation through different submenus is possible There are four different menu levels Home Status Event Log Statistics bo Ms Alarm Setup The information and values are read only Event Log Statistics Setup Commands Alarm Setup E J The information and values can be MAIN MENU Figure 5 1 LCD screen interface Q Padlock Opens up when correct password is entered Lines Number of highlighted lines indicates the current menu submenu level with the top line being the first level Main Menu e To activate the display when the screen saver Is active blank press any key User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 47 5 1 2 2 LEDs There are three LEDs next to the display screen The upper one is red the middle is yellow and the lower one is green Table 5 1 LEDs Function Action Malfunction Inverter n Look for alarms in Active N Red shutdown mode Alarms A Green amp Caution Inverter still operates Look for warnings in O Yellow but at a limited level Active Alarms Operates inverter feeds power Green to the grid No action NONE Yellow Inverter is OFF Power lt 7Woc No action 5 1 2 3 Fun
78. rk on the inverter must be performed with the terminals disconnected NOTICE The Safety Precautions refer to 3 Safety Precautions and the following detailed installation procedures must be read carefully prior to installation N 4 1 Mechanical Installation The mounting surface and the mounting method must be suitable for the inverter s weight dimensions and housing temperature Refer to 10 Technical Data Following the installation instructions will prevent poor performance or possible lethal consequences 4 1 1 Wall Bracket Depending on the mounting surface different mounting methods may be required to secure the wall bracket The system installer is responsible for selecting the correct type and number of fasteners to support the weight of the inverter on the mounting Surface e The bracket is designed to support 176 4 lbs 80 kg e The inverter must be mounted in a vertical orientation e Mount the inverter in compliance with the minimum spacing to ensure optimum cooling Refer to 3 2 1 Mounting Location This is especially important with several inverters installed e The recommended height for the connection area is 40 55 inches 1000 1400 mm above floor level U User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 Assembling The bracket consists of three parts A Inverter Bracket B Spacer Optional C Stringbox bracket Figure 4 1 Wall b
79. rk settings 1 The inverter must be assigned a static IP address in the local network Refer to the previous section 2 Port Forwarding must be set up within the local network router Port number 80 of the router is for Web traffic HTTP and must be forwarded to the Inverter s static IP address The external IP address of the router can be found at http www whatismyip com or similar web services or by asking the relevant Internet Service Provider ISP NOTICE IF the external network is assigned a dynamic IP address from the ISP this IP address Is unlikely to remain constant over a long time period It is possible for the inverter owner to set up an account with a company that provides dynamic DNS services for commercial and private users which allows the user to have a hostname such as yourname serviceprovider org that points to a computer with an IP address that regularly changes In order to have the dynamic DNS service operating correctly the owner s router must be capable of reporting its IP address to the dynamic DNS service provider This will most likely be present in the router settings section which asks for the details of the user account with the dynamic DNS service provider IF the owner s router does not report its IP address to the dynamic DNS service and has a dynamic external IP address then periodically a manual update of the dynamic DNS settings will be required N 3 When this is completed it
80. rupt rating sufficient for the voltage and current available in the circuit e Each disconnection device must be readily accessible and totally enclosed All devices must be permanently marked for their purpose 3 3 2 Overcurrent Protection Devices Overcurrent protection devices fuses or circuit breakers protect the circuit conductors and prevent overheating as a result of overload short circuit or ground fault e An overcurrent protection device is required on each ungrounded conductor e If a fuse blows or a circuit breaker trips the cause should always be determined before replacing or resetting it 3 3 2 1 Ground Fault Protection GFDI e The GFDI protects the negative positive grounded strings from ground faults in the PV array or in the PV conductors It is located in the lower compartment of the Stringbox and is equipped with a finger safe fuse holder e If the ground fault current exceeds 1A the GFDI opens and the inverter shuts down Refer to 7 2 Table of Events e The rating of the GFDI is 600Vpc and 1A 3 3 2 2 DC Fuses e DC fuses protect the conductors from back feed currents from parallel strings They are located in the Stringbox equipped with finger safe fuse holders to disconnect each fuse independently e The rating of the DC fuses should be as per the recommendations of the PV module manufacturer UL requirements and NEC with a maximum of 40 A e DC fuses are normally not a part of the scope of deliver
81. s 357116 013 Issue 2 0 April 2013 MPPT function ensures the highest possible energy harvest The inverter goes into Sleep mode at dusk when the solar array stops generating power 8 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 PRODUCT OVERVIEW This chapter gives an overview of the inverter with its supplied components and how they are assembled A brief explanation of how to unpack and handle the inverter safely is given and symbols appearing both on the inverter and in this User Manual are explained 2 1 Standards and Approvals THEIA HE t UL inverters are compatible with most directives and safety standards depending upon the grid settings chosen Table 2 1 Approved standards Grid Protection e IEEE 1547 e UL1741 e FCC level B e IEC EN 61000 6 2 immunity e IEC EN 61000 6 3 emission e IEC EN 61000 3 2 12 harmonics e IEC EN 61000 3 3 11 flicker 2 2 General Information Several variations of the THEIA HE t UL are available for different configurations and country specific requirements 2 2 1 Variants The instructions given in this User Manual are applicable to the following range of THEIA HE t UL solar inverters e THEIA 2 0 HE t UL e THEIA 2 9 HE t UL e THEIA 3 8 HE t UL e THEIA 4 4 HE t UL 2 2 2 Options e Negative or positive grounded system e DC fuses User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 9 2 2 3 Key Features
82. set during installation minimum 30 sec maximum 99 sec or OFF If the unit is set as master the default menu contains status mode information of the whole plant Single Inverter SN Running 123456789123 Now Voltage V Current A Power W 16 Feb 2013 09 43 AM Figure 6 2 Standard display for a single inverter Values of PV DC and feed in AC current voltage and power are shown numerically The instantaneous output power Is shown as a bar graph User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 5 9 PV Plant Plant values of feed in AC current and ae Nia da voltage for each phase and active power Plant overview for all phases are shown numerically The rk current output power is shown as a bar Voltage V 230 229 231 graph Current A 22 9 16 6 24 0 Active Power kW Figure 6 3 Standard display for a larger PV plant Use the scroll keys to observe daily monthly and yearly values Up or Down Navigate in the screen Left or Right Observe the daily monthly and total yearly values of e Energy harvest Wh kWh e Peak power Wp e Earning value of the respective country e Avoided CO emission kg Figure 6 4 Energy harvest throughout the day 6 2 1 1 Upper Display Area The left section shows the status of the inverter Refer to Table 6 2 for the three different status options It is also a shortcut to the Active Alarms The middl
83. should be possible to reach the THEIA HE t UL webserver by typing the external IP address of the local network or the web address if a dynamic DNS service is used in the computer s web browser User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 75 6 4 Internal Webserver The inverter has an internal onboard webserver providing detailed information about the operation warning alarms and energy production of the inverter plant e The webpage is best viewed in Firefox 6 0 or Internet Explorer 8 0 and later versions e From the internal webserver some inverter settings can be changed via username and password e Type the inverter s IP address in the computer s web browser e Default administrator account Is User admin Password admin This can be changed by the user and should be changed If the web server is connected to the internet 6 4 1 Home The Home screen is the standard display which is always shown when opening the web server THEIA Analyzer System Status Figure 6 15 Standard display e System status shows the status and operating mode of the inverter or the PV plant Current power production and input values on DC and AC side are listed to the right e PV plant More detailed information for specific inverters in a plant can be found in the drop down menu under Plant to the right e Production status shows the energy yield for the current day month and year e More detaile
84. ss N D D u i No Figure 4 4 Fasten the inverter to the bracket 1 Locate the hooks for the carrier slots A on the upper back of the inverter and the locating pin taps on the Stringbox B 2 Lift the inverter and guide the upper hooks into the slots on the inverter bracket Align the lower taps into the slots and slide the inverter onto the bracket 3 Ensure that the inverter is securely aligned in the bracket rails and fasten the inverter with 2 screws on the bottom of the Stringbox Recommended tightening torque is 0 74 ft lbf 1 0 Nm NOTICE Check that the inverter is properly fastened and secured to the bracket prior to the electrical wiring N 4 2 Checks Prior to Electrical Installation Make sure that both the AC circuit breaker s and the DC switch are OFF and that the terminals are in a discharged state to prevent shock hazards during the installation of the inverter Refer to 8 1 Switch OFF All electrical installations shall comply with the current local and federal electrical regulations Check that the PV and the grid specifications are compatible with the inverter specifications Refer to 10 Technical Data Check that the inverter is properly fastened and secured to the bracket Ensure that the conductors are listed for PV applications and the site environment and that they have the correct color coding N NAN WN K 26 User Manual THEIA HE t UL String Inverters 357116 013
85. stem voltages N 4 3 5 1 Connection Procedures Depending on supply voltage configuration the connections to the inverter must be performed differently User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 3 7 e The current carrying conductors on the AC side must be rated for the current and be maximum 6 AWG 16 mm Ensure compliance with electrical regulations e The current carrying conductors on the AC side must be rated for the appropriate current and voltage Ensure compliance with the state and federal electrical regulations e The AC conductors must be between 10 AWG and 6 AWG 6 mm and 16mm and with a temperature rating of 194 F 90 C for all connections e When selecting AC conductors resistance should be minimized by selecting a larger size of conductors e Follow the safety instructions and specifications from the conduit manufacturers regarding installation e Terminate the conductors to the corresponding terminals in the connection area e Tightening torque of the terminal screws is 1 5 Nm 1 11 ft lbf e Check that the connection Is performed correctly Single Phase with Neutral 240 120 Split Phase 240 Delta 120 Stinger with Neutral with Neutral N Ah lt 240 gt 2 E lt 120 gt 120 gt S Z 8 maaan Z G x N f 4 i pi _ x Y y N 4 ro ye J ISJ 240 Vac phase to phase 240 Vac phase to phase 120 Vac phase to neutral 120 Vac phase to
86. sunlight Clean ventilation Refer to 8 2 8 Ventilation 83 Current power limitation l E14 Communication failure A E15 Fan failure W A E16 Fuse fault A E17 Active power limitation I E18 Reactive power compensation I E19 84 PV power exceeds inverter rating Internal communication failure Internal air distribution is missing The grounding jumper is in the wrong place or one or more DC fuses are blown The inverter is in Active power limitation mode The inverter Is in Reactive power compensation mode Input PV power exceeds the normal input levels of the inverter The inverter will deliver maximum power If in shutdown the inverter will try to start up again when the temperature is within the permissible range again Check if the ventilation is sufficient the minimum distances for cooling are followed and the Inverter is shielded from direct sunlight Clean ventilation Refer to 8 2 8 Ventilation If the inverter Is in Shutdown turn off the AC side and then the DC side Wait for 30 seconds then turn on the AC side and then the DC side If the fault persists contact the Supplier Contact the supplier for a replacement fan The grounding setup is configured incorrectly Check the jumper for the grounding setup refer to 4 3 4 7 Jumper Position for System Grounding Setup If the jumper Is correctly positioned contact the supplier Conta
87. t Select YES and an automatic logon sequence Is performed NOTICE Removal of the inverter s lower cover must be performed by qualified persons only N Always disconnect the power sources prior to removal of the lower cover The inverter is charged with lethal voltages and removal of the lower cover poses a shock hazard if the inverter is not disconnected 8 4 Return and Disposal When replacing an inverter it can either be returned to the distributor or disposed according to state and federal regulations Eltek is committed to its policy of environmental responsibility and therefore appeals to end users who are disposing inverters to follow local environmental legislation and to seek safe and responsible means of disposal 8 4 1 Return For return to the distributor the inverter should always be in its original packaging or equivalent packaging In case of return of the product as a result of inverter failure a fault report must be submitted to obtain a Return Material Authorization RMA number The fault report template can be found at www eltek com support User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 95 Prior to Return e Loosen the locking screws attached to the fixing clip on the mounting bracket e Pull the inverter up and out of the bracket e Pack the inverter securely in the packaging e Add a fault report if relevant e Return to the given address in the respect
88. t digit Down Decrease present digit Left Select previous digit Right Select next digit Enter Confirm Left Back INSTALLATION MENU Right Next Enter Confirm A a2 san BOE 5 Time HH MM 09 43 AM Enter Call up the date Up Increase present digit Down Decrease present digit Left Select previous digit Right Select next digit Enter Confirm Left Back INSTALLATION MENU amp Right Next A oJ 9 4 3 am v Enter Confirm NOTICE The time setting must match the time on the actual installation site otherwise data may be overwritten 6 Set Bus ID Enter Call up the digits Up Increase present digit Down Decrease present digit A 9 9 Enter Confirm v Left Back Right Next Enter Confirm Bus ID RS485 INSTALLATION MENU 50 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 If RS485 communication is used set a unique bus ID for the inverter For any client inverters this will be required to be set manually under Setup gt Network Setup gt Bus ID RS485 If RS485 communication Is not used this step can be missed 7 Set as Master Unit Default No Set as master unit Enter Call up the options Up Yes Down No Enter Confirm Left Back Right Next Enter Confirm INSTALLATION MENU o If the inverter is set to master data must be collected from the client inverters The followi
89. ter plant the output parameters from the inverter plant to the grid as well as earnings avoided CO emission and total energy production with peak values from the inverter plant e Plant available in a unit configured as a master when selecting Plant in the drop down list provides a snapshot of the connected inverters status and energy production information To refresh the information click the Plant tab 80 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 7 TROUBLESHOOTING This chapter contains useful information if the inverter malfunctions during operation Start by checking the installation Is carried out correctly and the display information and then check the information in 7 2 Table of Events for possible solutions If this does not help solve the problem please contact the system installer 7 1 Check List by Failure If the inverter does not feed power to the grid try to solve the problem by checking That both the AC and DC disconnect circuit breaker s disconnect s are ON That the irradiation is sufficient to generate power gt 7 W That the operation mode of the LEDs is normal Refer to 5 1 2 2 LEDs That there are no warnings or alarms in the display Refer to 7 2 Table of Events That all connection points in the system are properly tightened That the values of the PV voltage current and power match those in the display NAN RANK If all these ite
90. terminal block NEG Negative terminal block POS NEG Figure 4 12 Terminals in inverter lower compartment NOTICE The connection requires removal of the inverter lower cover and must be performed by qualified persons only N 4 3 4 2 Array Configuration A PV string consists of a certain number of PV modules connected in series Strings can be connected in parallel forming an array and attached to the inverter The THEIA HE t UL inverters have a large voltage range and several feasible PV string configurations are possible Follow the NEC and the module manufacturer Instructions when configuring the PV array e The grounding configuration of the PV array and the connection to the DC terminals depend on the module technology 32 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 e The inverter is delivered from the factory with a negative grounded PV array configuration as a standard but may also be delivered for a positive grounded PV array configuration e The positive grounded PV array configuration differs from the negative grounded PV array configuration by the connection to the DC terminal blocks in the inverter lower compartment and in the Stringbox and the DC switch in the Stringbox e Array configuration depends on the module technology used Both the positive and negative DC terminal blocks have three pairs of inputs which allow three Strings to be connected in parallel D
91. tical position e Keep the lower cover closed when mounting the inverter to avoid damage to internal components e It is not recommended to install the inverters in living areas due to possible noise levels of the inverter e The display should be at eye level the product label must be visible and the connection area readily accessible 3 2 2 Environment The installation of the inverter must comply with local regulations the National Electrical Code and the OSHA regulations Protect the inverter from flammable and explosive environments to avoid fire as the inverter heat sink can reach temperatures as high as 194 F 90 C during long periods of high performance operation e Ensure a longer life and optimum performance of the inverter by installing It ina clean non dusty dry and cool environment e Ensure a non flammable and non explosive environment to avoid fire O User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 1 e The ambient temperature must be between 13 F and 140 F 25 C and 60 C If the temperature rises above 104 F 40 C the inverter may start to reduce power to protect internal components e It is recommended that non condensing relative humidity should be between 4 and 95 NOTICE Avoid exposing the inverter to direct sunlight Direct sunlight may cause yield losses as direct sunlight causes increased internal temperature that can lead to reduced power output A
92. ttings have been successfully set in Setup gt Grid Setup If the failure persists contact the supplier The inverter tries to restart when the frequency is within the permissible range Check that the grid settings have been successfully set in Setup gt Grid Setup If the failure persists contact system installer The inverter tries to restart when the frequency is within the permissible range Check that the grid settings have been successfully set in Setup gt Grid Setup If the failure persists contact the supplier 85 Grid High output DC current I E26 Output powerimbalance I E27 Grid fault still running I E28 VDR fault DC side I E29 DNO Remote trip I E32 Reserved for future use 86 Too high proportion of DC current in the grid feeding Imbalance in the output power Fault ride through The varistors on the DC side are damaged Inverter tripped as a result of a command from the DNO User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 The inverter tries to restart when the fault is cleared If the fault still occurs contact the supplier No action needed No action needed Contact the supplier for new parts The DNO must remove the Signal before the inverter will restart 8 MAINTENANCE This chapter explains how to switch OFF and discharge the inverter safely It also provides an overview of important regular maintenance procedu
93. ue to the inverter having one MPP tracker the PV power should be identical for every string NOTICE Maximum Voltage The open circuit voltage Voc must never exceed 600 Voc under any conditions The voltage generated by PV modules is inversely proportional to the temperature at lower temperatures the PV voltage increases from the nameplate rating and at higher temperatures the PV voltage decreases from the nameplate rating N 4 3 4 3 DC Switch The Stringbox is attached to the bottom of the inverter and provides PV string connection via the wiring that runs from the PV array A DC disconnect switch is provided and mounted in the Stringbox NOTICE Before removing the lower cover to access the connection terminals ensure that the DC switch is in the OFF position and the PV array cables are disconnected N Figure 4 13 DC disconnect switch The DC switch ts rated at 600Vdc 25A User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 33 4 3 4 4 Positive Grounded PV String The inverter is shipped with a negative grounded string configuration if nothing else is specified at the time of order The difference between negative and positive grounded PV configurations is the connection to the Ungrounded and Grounded terminal blocks in the Stringbox and the POS and NEG terminal blocks in the inverter lower compartment The figure below shows the difference between negative and positive grou
94. ve contacts M Inverter cover Ensure that no cables interfere with the sealing of the inverter lower cover and fasten the cover firmly to the housing Recommended tightening torque is 1 0 Nm 0 74 ft Ibf Verify that the lower cover is correctly tightened so that no moisture enters the housing and damages the electronic components User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 45 5 START UP This chapter provides instructions to ensure a safe start up of the THEIA HE t UL inverters A minimum voltage of 184Vac and 230Vpc and a power greater than 7Woc is required from the PV system before the THEIA HE t UL t inverters start up and begin feeding power to the grid Do not attempt to start up or commission the inverter if one of the voltage sources is not available AC Side e Turn ON the AC circuit breaker s DC Side e Turn ON the DC switch es 5 1 Initial Start When the inverter is started for the first time an installation menu Is automatically displayed to enable the configuration of certain values and operational settings 5 1 1 Customizing the Inverter Settings Single Inverter e When both the DC and the AC disconnects are turned ON and the inverter is supplied with enough power the installation menu is displayed on the LCD screen Multiple Inverters Connected 1 CAN e Connecting all inverters via the CAN bus enables the configuration of all inverters in a plant via one inv
95. ver normal wear and tear of the inverter The warranty is only valid with an identifiable and accepted serial number 9 2 1 Damage Eltek takes no responsibility for damages to the inverter due to e Unauthorized persons removing the inverter upper cover e Unauthorized modifications made to the inverter e Inverter installed commissioned operated or maintained incorrectly e Relevant safety regulations and instructions in this User Manual being ignored e Inverter operating beyond the limit values given in 10 Technical Data e Inverter exposed to external abnormal conditions such as lightning storms fire vandal sm etc Refer to the Warranty document for details of benefits and exclusions that may apply to you User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 g 7 98 User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 10 TECHNICAL DATA 10 1 Inverter datasheet INPUT DATA PV SIDE THEIA 2 0HE t THEIA 2 9 HE t THEIA 3 8 HE t Nominal DC power 4600W Max recommended PV power 5750W Max input operating current 21 0A Max input short circuit 25 0A Max DC voltage 600Voc Normal operating range 230 500Voc Number of PV string inputs 3 Number of MPP trackers Input features THEIA 4 4 HE t H Reverse polarity protection Ground fault monitoring Integral DC switch Integral DC fuses for string inputs optional Field configurable for positive and neg
96. y and must be provided by the system installer Eltek may supply DC fuses if they are specified at the time of order Table 3 1 DC current characteristics and recommended fuse ratings Max DC 1x PV String 2xPVString 3x PV String Inverter Type Current THEIA 2 QHE t UL 9 5A 15A 8A 5A THEIA 2 9HE t UL 13 5A 22A 11A 8A THEIA 3 8HE t UL 18 0A 29A 15A 10A THEIA 4 4HE t UL 21 0A 33A 17A 11A User Manual THEIA HE t UL String Inverters 357116 013 Issue 2 0 April 2013 2 1 NOTICE Overcurrent protection is not required for PV strings where the maximum current which is equal to 1 25 x Isc from all sources cannot exceed the ampacity of the PV string conductors or the maximum overcurrent device size specified on the PV module product label 3 3 2 3 AC Overcurrent Protection e The AC Overcurrent Detector OCD protects the supply conductors between the inverter and the grid e AC OCD must be provided by the system installer To reduce the risk of fire the inverter AC terminals must only be connected to a circuit provided with branch circuit overcurrent protection in accordance with the National Electrical Code ANSI NFPA 70 and having maximum ratings as per Table 3 2 below Table 3 2 AC current characteristics and fuse rating Tripping Inverter Type Max AC Current AC Fuses Characteristics 208Vac 240Vac 208Vac 240Vac THEIA 2 0HE t UL 10 0A 8 5A 15A 15A Double THEIA 2 9HE t UL 14 0A 12 0A 20A 15A BorC Pole TH

Download Pdf Manuals

Related Search

Related Contents

Manual de utilização do Sankhya-W  Holmes HAP675RC User's Manual  

Copyright © All rights reserved. Failed to retrieve file