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Solar Grid Tie Inverter User Manual

1. i A E F a BEE Van ee oor Expansion Screw F ye Expansion Pipe Figure 9 Installation of Expansion Pipe Step 2 Clean all dust outside inside the hole and ensure the distances between hole are as per requirement Insert expansion pipes into the holes vertically use rubber hammer to tap the pipes into the wall completely Insert the bracket into expansion pipes and use expansion screws to fasten the Bracket H it I ja i J LA LJ A III i I TORAH i j k I Bae I Bl I i A ad eel ked oF i Se FF ff 1 Figure 10 Bracket Installation Step 3 Mount inverter onto the narrow vertical panel ensure upper corner of the inverter is hooked onto the bracket use M5 screws to fix the lower part of the inverter to the bracket See figure 10 Step 4 Use M5 flange nut to fix the bottom of the inverter Step 5 Complete the installation process 6 5 Connections of the PV power system ePV String inverters 4KTS SKTS 6KTS and 7KTS have facility to connect two strings of PV modules while the other models can only take one module string Use only one string PV modules with excellent performance and reliable quality Open circuit voltage of modules connected in series should be lt Max DC input voltage of the inverters Ref Table 3 and the operating voltage at all times should be within the MPPT voltage range 14 Model IKTS 1 5KTS 2KTS 3KTS AKTS S
2. Dy W NX 6 x VA Aba ais aI Figure 1 Solar PV Grid tied System 2 2 Important Safety Instructions Danger Danger to life due to high voltages in the inverter All work on the inverter must be carried out only by qualified personnel The appliance is not to be used by children or persons with reduced physical sensory or mental capabilities or lack of experience and knowledge Children should be supervised to ensure that they do not play with this appliance Caution Danger of burn injuries due to hot surfaces During operation the upper lid of the enclosure and the enclosure body may become hot Only touch the lower enclosure lid during operation Caution Possible damage to health as a result of effect of radiation Do not stay closer than 20 cm to the inverter for long periods Note Ground PV generator frame and other electricity conductor surfaces to protect the system and personnel 2 3 Explanation of Symbols This section gives an explanation of all the symbols shown on the inverter and on the type label eSymbols on the Inverter Danger to life due to high voltages in the inverter There is residual voltage in the inverter The inverter requires 5 minutes to discharge Wait 5 minutes before you open the upper lid or the DC lid Beware of hot surface The inverter can become hot during operation Avoid contact during operation Danger of bish voltages Danger
3. support MPPT Mode The default setting is MPPT mode the operation mode will return to MPPT after DC amp AC restart Fault Mode If any fault error occurs inverter will stop delivering power until the fault error is rectified Some fault error will recover automatically and others may need manual restart Setting Mode Press Function key for 5 seconds to get into the Setting mode if DC power exists Please refer to chapter 7 of the Manual more information 6 Installation 6 1 Packaging Type en a Description QTY Remark Equipment l PV Grid tied Inverter 1 unit Accessories 2 Backboard l pc Spare parts bag includes M5 3 Spare parts l bag flange nuts 2 4 AC connector l pc expansion screws en 5 DC connector assembly 1 2 MS tapping screws 6 Product manual l pc Warning N Ensure that the DC side is not charged before installation or maintenance If the inverter is powered the capacitors will be charged if after the inverter is turned off hence itis to wait for 5 Table 1 Packaging list minutes to ensure that the capacitors are discharged Note Inverters must be installed by qualified personnel only 6 2 Preinstallation precautions 11 Check the location where inverter is to be installed to ensure the following e The ambient temperature is within the operation range 20 C to 60 C 4 F to 140 F elhe altitude is less than 2 000
4. to life due to high voltages in the inverter Caution risk of electric shock Only authonzed personnel is allowed to set the DIP switch e Symbols on the Type Label CE mark The inverter complies with the requirements of the applicable ie CE guidelines e Important Safety Instructions When using the product please read follow information below to avoid fire lightning or other personal injury Warning Ensure input DC voltage the Max DC voltage Over voltage may cause permanent damage to the mverter or cause other damages which are not covered in the warranty This chapter contains important safety and operating instructions Read and keep tus Manual for future reference Warning Authorized service personnel must disconnect both AC and DC power trom the TressSolar Series mverter before attempting any maintenance or cleaning or working on any circuits connected to the TressSolar Series inverter The installation of inverter must fulfill Wiring e Before using the Series inverter read all instructions and cautionary markings on the Series inverter and all appropriate sections of this guide eUse only a accesories recommended or sold by otherwise may result in risk of fire electric shock or injury to persons e To avoid risk of fire and electric shock make sure that existing wiring is in good condition and cables used are not undersized Do not operate the Series inverter with damaged or substa
5. 00 2300 3200 4200 5400 6100 7000 Max DC voltage V 500 550 Max input Current A 8 8 9 7 11 13 21 26 32 a7 Number of MPP trackers Strings per MPP tracker 1 1 1 2 MPPT voltage range at rated power V 120 425 160 425 200 500 210 500 180 500 180 500 180 500 180 500 Shutdown voltage Start voltage V 70 100 70 100 4 2 Output AC DC injection monitoring Model IKTS 1 5KTS 2KTS 3KTS 4KTS 5KIS 6KTS 7KTS AC nominal power W 1000 1500 2000 2600 3000 3680 4000 4600 Max AC power W 1000 1500 2200 2800 3300 3680 4400 5000 Max AC current A 4 5 6 8 9 13 6 17 5 23 27 32 Nominal AC voltage range V 230 180 270 AC grid frequency range Hz 50 47 52 Power factor cos l Total harmonic distortion 3 THD at nominal power j Detailed parameter please see local grid standard 4 3 Efficiency Safety and Protection Model I KTS 1 5KTS 2KTS 3KTS 4KTS 5KTS 6KTS 7KTS Max efficiency 96 6 96 8 96 8 97 0 97 4 97 6 97 6 97 6 Euro efficiency 95 5 96 0 96 2 96 3 96 5 97 1 97 1 96 8 MPPT efficiency 99 9 Safety amp Protection Overvoltage under Ves voltage protection DC isolation impedance Yes monitoring Ground fault pr
6. KTS 6KTS 7KTS Max DC voltage 500V 550 V Table3 Max DC Voltage of inverters Only use good quality PV cables to connect modules to inverter Normally the voltage drop between modules and inverter could be about 1 2 Hence inverter should be installed as close to the PV module as possible to reduce cable losses E D Please don t connect the PV panel positive or negative to ground Figure 11 Use of Multimeter to measure module array voltage Warning PV modules carry igh DC voltage which is dangerous please comply with all electrical safety rules and regulations when working Warning In case ofany faults with module arrays do not connect the inverter to the arrays Need not connect the input terminal to optimizer e AC Output This series inverters are designed for single phase grid Operating AC voltage range from 180V to 260V 200V 270V for Australia and the typical frequency is 50Hz Other operating parameters should comply with local public grid regulations Table 4 Cable and MCB Requirement 15 Model IKTS 1 5KTS 2KTS 3KTS 4KTS SKTS 6KTS TKTS Cable Cu 1 5mm 2 5mm 2 5mm 4mm 4mm 6mm 6mm 6mm MCB No fxd Aids Figure 12 Incorrect connections between Load and Inverter Impedance of the AC connection should be less than 2Q To ensure anti islanding function PV cable should ensure power l
7. Solar Grid Tie Inverter User Manual 1 Notes This manual is an integral part of the inverter Please read this manual carefully before installation operation or maintenance and it s for future reference 1 1 Scope IKTS 1 5KTS 2KTS 3KTS AKTS SKTS 6KTS 7KTS Please keep this manual where it will be accessible at all times 1 2 Target Group This manual is to be read by qualified installer and PV system user The tasks described in this manual must only be performed by qualified technical service personnel 1 3 Symbols Used Some symbols are used in this manual in order to ensure safety of personal and property Please read the following symbols carefully Danger Danger mcicates a hazardous situation if not avoided will result m death or serious myury Warning Warmne ind cates a hazardous situation if not avoided could result m death or serious myury Caution Caution indicates a hazardous situation if not avoided could result m nunor or moderate myury _ Note ES Note provides tips which are valuable for the optunal operation when using the product 2 Safety 2 1 Appropriate Usage The Series is a Solar PV inverter which converts the DC current from a PV generator into AC current and feeds it into the public grid A A 9 N A WAT HRA Ware WEE V RA maw IN N XN ry XE MM vna a ooo eee gt ooo oes Grid Tie Inverter 0 Q
8. e Function Key to change language Ude xx xV Engum Pac xxxx xW Pac xxxx AW Press the Function key it will After a brief period of inactivity the go to next state display returns to Normal State Ide xx XA Pac xxxx xW Normal State Pac xxxx xW 73 LCD Display Information Table 5 Display Information Operating State Information Display Description Working Condition Power Off No display DC input voltage lt 70V inverter stops working Initialization amp Waiting Waiting 70V lt DC Input voltage lt 150V in standby mode Checking grid Checking Input voltage gt 150V checking grid tied mode Normal State Normal state Inverter is working in grid tied mode Flash Flash Upgrading software Real time Power Checking Parameters Pac xxxx W Real time output power 23 Total energy generation Etotal xxxxkWh Total energy generated Output Voltage Vac xxx xV Output voltage Output Frequency Freq xx xHz Output frequency Output Current lac xx xA Output Current PV Input Voltage Vpv xxxV PV input voltage PV Input Current Ide xxx A PV input current Fault Information Isolation Fault Isolation Fault Grounding fault or surge voltage protection failure Leakage Detecting Ground I Fault Leakage current over rating Fault OVR AC Over voltage rating Fault UVR AC Under v
9. e Remove the inverter from the bracket 10 2 Packaging elf possible pack the inverter in the original packaging elf original packaging is not available use an equivalent carton that meets the following requirements eSuitable for loads more than 25 kg e With handle eCan be fully closed 10 3 Storage Store the inverter in dry place where ambient temperature is always between 20 C 60 C 10 4 Disposal Warranty condition Tress Power will be responbsible for repairing and replacing faulty inverter within 5 year warranty period 29
10. he function key is used to set the LCD It can alternate between different parameters and languages 20 Power Londoner System Inverter will change into standby mode when 100V lt the de input lt 150V When the PV voltage gt 150V Inverter Checking 180s will change into Normal State mode Pac x xW after 180 second start up time 1 Normal State Pac x xW 21 Initial State LCD lights up Normal State Pac xxxx xW Displays total _Energy _ Etotal xx x kwh Pac xxxx xW Displays n day s energy Etoday xxxx xkwh Pac xxxx xW Displays the PV voltage VaC EE 5V PAr xxxX KW Displays AC _ current _ Displays AC frequency Freq xxxHz 7 Displays mverter model 4EW Pac xxxx xW Displays software version Ver W1 50 Pac xxxx x W Language setting Select Language Pac xxzx zW Energy today reset Reset Etoday Pac xzxx EW Displays the initial state Normal State Pac xxxn kW 22 Press Function key to check data will go back to initial state after 10s of inactivity Lockup function as below Set Language as below Ude xx xV Normal State Pac xxxx xW Pac xxxx xW Press the Function key for 5 Press the Function Key 10 times seconds it will be locked it will display the language menu Lock Select language Press and hold th
11. ies inverter Figure 22 Figure 22 RS232 Communication Diagram RS 232 Figure 23 RS232 Communication Cable and Interface Table 6 RS232 Pin Definition Pin l 2 3 4 5 6 8 9 Function NC TxD RxD NC Common GND NC NC NC NC Only one inverter can be connected with a PC at one time through RS232 port This facility is generally used for single inverter communication software update and testing by service person 2 RS485 Communication RS485 allows upto 32 inverters to communicate at the same time by one cable but the cable length should not be more than 1200m In order to monitor multiple inverters at the same time users need to install a monitor system Tress Browser in the PC to browser the PV plants operating data Tress Browser doesn t need PC software pls check the manual of Tress Browser details Connecting the system as blow figure 24 user can easily monitoring the PV power station 25 Figure 24 Monitoring Diagram Two types of cable must be prepared when using for monitoring multipleinverters RS485 Pin Definition Pin l 2 3 4 Function TX TX RX RX Inverter wiring Find a Ethernet cable with appropriate length At one end of the cable strip off about 2 inches of the Ethernet cable sheath Choose 4 wires brown brown white orange orange white and press the 4 wires into pinl to pin4 of the RJ11 crystal head as below The
12. m e Not prone to be damaged by sea water e Not close to corrosive gas or liquid for example locations where chemicals are processed or lots of poultry is fed e Not exposed to direct sunlight e Not prone to be flooded snowed in eEnsure good ventilation and low humidity e Not exposed to steam vapor or water e Not exposed to direct cool air eNot close to television antenna or antenna cae e Inverter needs to be at least 30 cm see table 2 clearance If this is not observed inverter is likely to malfunction high temperature inside the inverter will not cover any damage due to this condition oO O Position Min clearance Side 30cm Top 30cm Bottom 30cm 30cm 30cm Front 10cm Table 2 Minimum clearance needed w o 6 3 Preparation Following tools are needed for installation Installation Tools Installation Tools Crimping tool Plier Electrical drill and Screwdrivers amp adjustable spanner 6 4 Installation Steps 12 Step 1 Drill holes in the wall with electrical drill according to the size of bracket it is packed in the box Drill straight into the wall do not shake the dril to avoid damage to the wall Depth of the holes should be about 30mm and should be the same in all the holes After removing dust from the holes measure the net depth of the holes If the depth is more than 33mm or less than 27mm the expansion pipes can not be properly installed 13
13. n Insert the ready made crystal head into RS 485 port of inverter Figure 25 Inverter wiring 26 9 Troubleshooting 9 1 Troubleshooting This section contains information and procedures for solving possible problems on series inverters and provides troubleshooting tips to identify and solve most problems This section will help narrow down the source of any problem which you may encounter Please read the following troubleshooting steps eCheck the warning or fault messages on the System Control Panel or Fault codes on the inverter information panel If a message is displayed record it before doing anything further e Attempt the solution indicated in Table 8 elf the inverter information panel is not displaying a Fault light during a fault condition check the following to make sure that the installation allows proper operation of the unit Is the inverter located in a clean dry adequately ventilated place Is the DC Isolator in ON position Are the cables adequately sized and short enough Are the input and output connections and wiring in good condition Are the configuration settings correct for the particular installation Are the display panel and the communications cable properly connected and undamaged Contact Installer or Customer Service for further assistance Please be prepared to describe details of ofthe system installation and also provide the model and serial number
14. ndard wiring e Do not disassemble the Series inverter It contains no user serviceable parts See Warranty for instructions on obtaining service Attempting to service the Series inverter the user may result in risk of electric shock or fire and will void the warranty e To reduce the risk of electric shock authorized service personnel must disconnect both AC and DC power from the Series inverter before attempting any maintenance or cleaning or working on any circuits connected to the Series inverter Turning off controls alone will not reduce this risk e Keep away from flammable explosive materials to avoid fire disaster e The installation location should not be close to humid or corrosive substance e To avoid electric shock please do not disassemble the inverter as there are high voltage capacitances installed inside the inverter Fatal High voltage will remain in the inverter for 5 minutes after its disconnection from grid or PV plant e To reduce the chance of short circuits authorized service personnel must use insulated tools when installing or working with this equipment 3 Introduction 3 1 Basic Features Congratulations on your purchase of a series inverter The Series inverter is one of the finest inverter on the market today incorporating state of the art technology high reliability and convenient control features Advanced MCU Microcontroller Unit control technology e Utilize the latest high efficiency po
15. nverter after checking following a Make sure all the DC and AC breakers and Isolators are in off position b AC cable from inverter to connection point is done correct c All PV panels are connected to inverter correctly unused DC connectors should be sealed using covers provided Starting inverter a Turn ON AC MCB b Turn ON DC Isolator and then AC Isolator b Inverter will start up automatically when PV arrays generates enough energy Inverter goes through the following three stages during normal start up Waiting Inverter is waiting checking PV arrays output DC voltage to be with adequate At this time DC voltage is with in range of DC100V DC150V Checking Inverter checks AC grid conditions automatically when DC input voltage exceeds Start up voltage Inverter then goes through the start up count down Normal Inverter begins to operate normally with green light ON and feed power to grid LCD displays present output power Inverter will stop feeding power to grid when PV output is not enough for normal operation Note If inverter shows Fault status please refer to Part 9 19 7 Operation 7 1 Control Panel Normal tT LCD BRS Fault 2117 Function Figure 21 Control Panel Normal green The inverter is working in normal state Fault red The system is in fault state Function key To check the operating parameters for details see section 7 2 7 2 Display Function T
16. of the inverter Table 8 Troubleshooting tips Faults Diagnosis and Solutions Wait for some time to allow grid supply to stabilize for inverter to go back Gud rau to normal working state Making sure that grid voltage and frequency complies with standards Seek help from Installer No grid supply Sr Check grid connection like cables interface etc un Check grid usability Seek help from Installer PV Over Voltage Check the panel s open circuit voltage to be less than Max DC voltage If PV open circuit voltage is higher consider rewiring modules to get voltage under limits DC INJ High Wait for a minute to see if DC injection returns to normal If fault persists for assistance SCI Failure Disconnect PV ve and ve input and re connect after a short break If fault persists for assistance 27 Isolation Fault Check the impedance between PV PV and ground For 1 5KW T2 8KW gt 1 Mohm 3 3 5KW gt 2Mohm Contact Tress Power if impedance value is not big enough Consistent Fault Disconnect PV ve and ve input and re connect after a short break If fault persists for assistance Relay Failure Disconnect PV ve and ve input and re connect after a short break If fault persists for assistance Leakage current is too high ee concerns and rectify any faults found Reconnect the DC input and check operation If fault persists for assis
17. oltage rating Grid Fault Fault OFR AC Over frequency rating Fault UFR AC Under frequency rating No Utility No Utility No Utility Fan Fault Fan Fault Fan locked or circuit fault PV Over Voltage PV Over Voltage PV voltage gt Max DC voltage Consistent Fault Consistent Fault CPU or other hardware failure Relay Failure Relay Failure Relay between grid and inverters failed DC INJ High DC INJ High DC injection in AC output over rated value EEPROM Failure EEPROM Failure EEPROM s data collection failure SCI Failure SCI Failure MCU internal communication failure High DC Bus High DC Bus DC bus voltage is higher than the set value DC Sensor Fault DC Sensor Fault Input DC detector failure GFCI Failure GFCI Failure Leakage current detecting circuit failure Others Lock Lock Frozen information Reconnect Reconnect Reconnect to grid after relay disconnect Inverter s Version Ver xx xx Version information 24 8 Communication and Monitoring 8 1 Communication Interface inverters have communication interface RS485 and or RS232 depending on model Output voltage current frequency fault information etc can be delivered to a PC or other monitoring equipment via the RS485 RS232 8 2 Communication types inverters come with one or both of the following types communication facility depending on model RS232 Communication RS232 is a standard communication interface within a distance of 12m It transmits data between PC and one ser
18. oss to be lt 1 of nominal power Also AC cable between inverter and grid connection point should be less than 150m Chart below provides relationship between AC cable length and cross section with losses Figure 13 AC Cable Loss for inverter inverters come with good quality IP66 IP68 AC connector Please refer to information below to make correct AC connection 16 Figure 14 AC Connector details Follow below steps for wiring AC Connectors Stepl Pass the AC wire through the threaded sleeve and pressure screw See figure 15 Pressure screw Threaded sleeve Figure 15 Step2 Connect the AC cables as explained below Fix the green and yellow ground cable to the ground terminator in the AC Connector Figure 16 Fix the blue Neutral cable to the N Neutral terminator in the AC Connector Fix the Line cable brown or black wire to the L Line terminator in the AC Connector Figure 16 AC Connector Step3 Confirm that all the wires are fixed tightly Figure 17 17 Connected wires Pressure screw Threaded sleeve Socket element Figure 17 Step4 Fix the threaded sleeve Figure 18 Socket element with threaded sleeve az Pressure screw Figure 18 Step5 Fix the pressure screw Figure 19 Threaded sleeve Pressure screw Figure 19 Step 6 Connect AC connector to inverter Figure 20 18 Communication Figure 20 6 6 Inverter Start up Only start i
19. otection ve Grid monitoring Yes Ground fault current monitoring Yes Yes 4 4 General Data IKTS 1 5KTS 2KTS 3KTS AKTS 5KTS 6KTS 7KTS Dimension Dimension W H D 288 350 140 mm 338 430 138 mm 345 440 186 mm ee Operating I temperature range 20 C 60 de rating at 45 C C Degree of protectio IP65 Topology Transformer less Internal consum ption night W LCD display Backlight 16 2 character LCD Standard warranty 5 years 5 Function Operation Mode standby Mode The standby mode means that the inverter is ready for operation but still not connected to the grid In this mode it will continue to check whether PV array has enough power to feedback into grid When the inverter passes dump load test after startup it will change from standby mode to Checking mode Checking Mode If inverter passes dump load test and no error fault occurs will start checking mode to deliver power On grid Mode In this mode series inverters convert PV array s DC into AC and feedback into grid CAUTION It is normal that the mverter decreases the output power in the condition of thennal 1 protection but if this occurs frequently the heat sink and the fan will need to be checked 10 and the inverter may need to be shifted to a place with better air flow If the fan is dirty it shouldbe cleaned and and if the output power decrease is caused by electricity issues please ask for professional
20. tance Disconnect DC and AC connector check equipment on the AC side for EEPROM Failure Disconnect PV ve and ve input and re connect after a short break If fault persists for assistance Disconnect PV ve and ve input and re connect after a short break Check AC connection for faults If fault persists for assistance High DC Bus Check the fan for any block Check fan cables If fault persists for assistance fan Fault GFCI Failure Disconnect PV ve and ve input and re connect after a short break If fault persists for assistance 9 2 Routine Maintenance Inverters generally do not have any maintenance needs The cooling fan is fitted should not be blocked or covered in dust eCleaning of Inverter Use small electric blower soft dry cloth or brush to clean inverters Water corrosive chemical or intense cleaning agents should not be used eCooling fin cleaning To ensure proper inverter performance adequate space needs to be left all around the inverter and heat sink at the back Fan should not be blocked by dust snow or any other object Use air blower soft cloth or brush to clean cooling fin Water corrosive chemicals or intense cleaning agents should not be used for cleaning inverter or fan 28 10 Decommissioning 10 1 Dismantling the Inverter e Disconnect the inverter from DC Input and AC output e Remove all connection cables from the inverter
21. wer component Optimal MPPT technology e Advanced anti islanding solutions lt gt lt gt lt gt lt gt Excellent protections IP65 protection level Efficiency up to 97 6 Total Harmonic Distortion THD lt 3 Safe amp Reliable transformer less design with software and hardware protection Friendly HMI Human Machine Interface LED status indication LCD display of technical data Human Machine interaction through press key RS485 RS232 communication interface PC remote control 3 2 Electrical block diagram Step up 2 DC DC Converter DC input terminal Insulation Detection Figure 2 Electrical block diagram e Terminals on the inverter AC GRID AC output terminal Figure 3 Terminals of PV inverters IKTS 1 5KTS t Figure 4 Terminals of PV inverters 2KTS 3KTS Figure 5 Terminals of PV inverters 4KTS 5KTS 6KTS 7KTS 3 3 Dimensions and Weight e Dimension WWOGE Figure 6 IKTS 1 5KTS c 1 779 140mm 288mm a D Se 3 3 ka 138mm 338mm Figure 7 2KTS 3KTS NINI II 345mm Figure8 4KTS 5KTS 6KTS 7KTS eWeight Table 1 Weight in kilo grams kgs Model IKTS 1 5KIS 2KIS 3KIS AKTS SKTS 6KTS 7KTS 11Kgs 11 5Kgs 15Kgs 15 5Kgs 21Kgs 21 5Kgs 22 5Kgs 23Kgs 4 Technical Data 4 1 Input DC Model IKTS 1 5KTS 2KTS 3KTS AKTS SKTS 6KTS 7KTS Max DC power W 1100 16

Solar Grid Tie Inverter User Manual

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