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User Manual PVI-3.8_4.6-I-OUTD EN

1. 61 5 5 5 3 DIUI NEUE 61 5 5 5 4 Cast 62 5 5 5 5 Last Month COE hea Rae 62 5 5 5 6 Last ithe et ORE aes 62 5 5 5 7 Last 365 days a ENA 63 5 5 5 8 User periods sss gae eniti dete ete ee 63 J9 0 SEINE S eiii 64 5 5 6 1 65 5 5 6 2 Imp Display eee rg terree be 65 5 5 6 3 Nioaun cH 66 5 5 6 4 New pass nette eee er cese ines oe 66 5 5 6 5 CUENCY 66 5 5 6 6 Date Time hiss RM c 67 5 5 6 7 EDD I 67 5 5 6 8 START UP Voltage tete verbera vee 67 5 5 6 9 Autotest 2 242404 4 ener 67 SNMP rium 70 5 56 11 Remote Control 71 23 5 06 12 UV Prot Me enit teneret 72 5 2 0 13 MPPT CER 73 2 Power one 0 hanging the Shape of Power Installation and operating manual Page 10 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 6 14 Alarm Message eee ettet Er rec eR 73 m 75 5 6 AUTOTEST PROCEDURE BY USING AURORA COMMUNICATOR 76 6 DATA CHECK AND COMMUNICATION ssssscssssssccssssccccesseecsessceecess 81 6 1 CONNECTION THROUGH RS 485 SERIAL POR
2. Totale 1964 ih e Select the test or tests of interest check max voltage check min voltage check max frequency check min frequency checking off the corresponding check boxes and clicking on the start button to launch the test AN POUWEF DITe hanging the Shape of Power Installation and operating manual Page 79 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Ce gt File Conf Statistiche E Mail Data Logger Aurore PYLDesttop finest Auto W Verifies Max Tensione nerga Tote 196 4 ih Potenza di Ingresso Potenza Monitoraggio in corsa e The inverter will perform all of the tests selected in sequence displaying its progress Ej Aurore Communicator 281 Verifica Max Tensione RUNNING suc Gic Energia 1965 Potenza di Ingresso Potenza 604 3 Monitoraggio e At the end of each test the wait grid screen will appear while awaiting the inverter to re connect to the grid power one hanging the Shape of Power Installation and operating manual Page 80 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Bayon Connie 2515 EE qe File Configurazione Lingua Statistiche E Mail Datalogger Aurora PVIDesktop Aiuto Verifica Max Tensione WAIT GRID
3. hanging the Shape of Power Installation and operating manual Page 61 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 5 2 Partial By selecting Partial you can access the following information Time Total operation time since the count was last reset E par Total energy produced since the count was last reset Peak Measured peak power value since the partial meter was activated Val Economic gain since the count was last reset CO2 CO2 saving compared to fossil fuels since the count was last reset Resetting all meters in this submenu can be done be keeping the ESC key depressed from display for more than 3 seconds After this time a sound will repeat three times 5 5 5 3 Today By selecting Today you can access the following information E tod Total energy produced during the current day Ppeak peak power value reached during the day Val Economic gain during the current day CO2 saving for the current day compared to fossil fuels Power one 0 hanging the Shape of Power Installation and operating manual Page 62 of 94 PVI 3 8 4 6 I OUTD xx 1 3 5 5 5 4 Last 7 days By selecting Last 7 days you can access the following information E 7d Total energy produced during the last 7 days Val Economic gain during the last 7 days CO2 CO2 saving over the last 7 days compared to fossil fuels 5 5 5 5 Last month By selecting Last month you can access the following inf
4. Anomaly fault so POWEF DITe 0 hanging the Shape of Power NOTES Input voltage less than 90 Vdc for both inputs It is in a transition status needed for checking the operating conditions The machine is operating normally search for the maximum power point or constant voltage Leakage to the ground detected The fault may an internal or external anomaly see the report on the LCD display Installation and operating manual Page 48 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 green Installation phase During installation it yellow AURORA is indicates the address setting 6 red disconnected from the phase for RS 485 grid communication Green 4 Disconnection from the Indicates that the grid is 7 yellow grid missing red US NOTE In correspondence with each of the inverter states signaled via the constant or intermittent lighting up of the relevant LED a message identifying the operation which is being performed or the fault defect detected will also be displayed on AURORA LCD display see the following paragraphs POUWEF DITe hanging the Shape of Power Installation and operating manual Page 49 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 V 1 Night time mode G K AURORA is in its night time shut down phase this happens when the input power is too low to feed the inverter V d 2 AURORA initialization and grid check K machine is in its
5. E QOL 2 H i i m E 8 To d eL SPINE vik E vid iat 1 EE I 818 tt z ag 3 3 3 3 8 IH ek 3 od 5 i 8 E ra 8g 3 E 94 HHH Fig 1 Block diagram of inverter without integrated DC switch The models whose code does not end in S are supplied without the 600V integrated switch AN POWEr OnE bw G hanging the Shape of Power Installation and operating manual Page 14 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 21 Fundamental elements of a photovoltaic system STRINGS ARRAYS In order to significantly reduce the costs of installing the photovoltaic system costs linked especially to the wiring problem of the inverter DC side and to the subsequent distribution on the AC side the STRING technology was developed A photovoltaic panel is composed of many photovoltaic cells which are fixed onto the same supporting base A STRING is composed of a certain number of panels connected in series An ARRAY is composed of one or more strings connected in parallel Photovoltaic systems of a certain size can be composed of more than one array connected to one or more AURORA inverters By maximizing the number of panels inserted into each string it is possible to reduce the cost and complexity of the plant connection system Array Fig 2 Arr
6. inverter will be able to recognize any grounding which does not respond to WARNING Depending on the grid standard chosen see section 3 4 8 the AN the applicable regulations and an error message will appear on the display power one A Changing the Shape of Power Installation and operating manual Page 37 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 5 2032 Lithium Battery Replacement WARNING Before carrying operation follow the connection disconnection procedure detailed in paragraph 3 4 1 Inside Aurora there is a CR2032 lithium battery When the battery is at its end of life a message will be shown on the display indicating the battery state The battery can easily be seen once the front panel has been removed see Fig 15 The component cannot be assembled vertically to its container but it must be inserted from the side Side A at an angle of around 30 The component will rotate inside the battery port until it seats in the right position Fig 15 Lithium battery replacement WARNING battery must be replaced by qualified personnel only 3 6 Replacement of the memory WARNING Before carrying out operation follow the connection disconnection procedure detailed in paragraph 3 4 1 All historical data relative to the system energy production are stored in this memory If the inverter must be replaced the memory can simply be removed from the old unit and reinserte
7. Installation and operating manual Page 69 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 OF Test During this test the limit set for the maximum grid frequency AC is reduced gradually until reaching the threshold for which the disconnection of the inverter from the distribution grid occurs At the end of the test when the inverter has disconnected itself from the grid the test result will be shown on the display Pressing the ESC key will allow you to return to the Autotest menu from which you can select another test UF Test During this test the limit set for the maximum grid frequency Hz is increased gradually until reaching the threshold for which the disconnection of the inverter from the distribution grid occurs At the end of the test when the inverter has disconnected itself from the grid the test result will be shown on the display Pressing the ESC key will allow you to return to the Autotest menu from which you can select another test Power one 0 hanging the Shape of Power Installation and operating manual Page 70 of 94 PVI 3 8 4 6 I OUTD xx 1 3 5 5 6 10 Alarm The inverter is equipped with an alarm system which allows for the switchover of a relay contact available both as a contact normally set open N O and as a contact normally set closed N C The relay contacts are accessible from the front cover as shown in Error Reference source not found This c
8. RECOMMENDED POSITIONING Fig 5 Recommended installation of Aurora inverters US NOTE Although titled mounting is possible see Fig 6 please note that this may reduce performance Derating due to a reduction in heat dissipation WARNING During operation the unit surface may become very hot To avoid burns DO NOT touch the surface power one NAS Changing the Shape of Power Installation and operating manual Page 22 of 94 PVI 3 8 4 6 I OUTD xx 1 3 Fig 6 Titled mounting AURORA must be mounted vertically Follow the information contained in the following paragraphs in order to mount the device correctly is NOTE It is recommended to install AURORA away from direct sunlight and heat sources including heat generated by other AURORA inverters see Fig 5 When the ambient temperature exceeds 50 C for PVI 4 6 I OUTD models and 60 C for PVI 3 8 I OUTD models the inverter will self derate the output power In order to avoid overheating always ensure that the airflow around Aurora is not blocked AN POWEF DITe hanging the Shape of Power Installation and operating manual Page 23 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 3 1 Wall mounting Included in the shipping package is a kit containing 4 steel screws 6 3x70 with 4 M6 washers and 4 SX10 anchors necessary for attaching the metal bracket to a concrete wall Screws and anchors can be inserted into the 3 holes on the m
9. T R T R terminal block RTN Data Logger RS485 port POWEL OE NA Charging Po Shao af Power Block Diagram RS 485 cabling AURORA PVI 3 8 4 6 OUTD NOTE when using an RS 485 connection there may be up to 62 inverters connected on the same chain Choose any address between 2 and 63 NOTE when using an RS 485 connection if one or more inverters are subsequently added to the system remember to switch back to the OFF position the system inverter switch that before was the last one in the system power one NAS Changing the Shape of Power Installation and operating manual Page 85 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 7 TROUBLESHOOTING The AURORA inverters conform to the standards predefined for their operation in connection with a grid for safety and electromagnetic compatibility Before the product is delivered several tests are successfully performed to check the operation protection devices performance and durability of the equipment These tests together with Power One quality guarantee system ensure optimal operation of AURORA If the inverter should malfunction however solve the problem as follows Y Work in safe conditions as described in chapter 3 5 checking that the connections between AURORA the photovoltaic field and the distribution grid have been made correctly Y Carefully observe which of the LEDs is flashing and read the text on the display After having don
10. The contract remains in this position i e switched over with respect to its rest position until normal operation i e operation in parallel with the grid is restored e ALARM conf the relay switches over in the event of alarms code E or warnings code W chosen from a list by the user the list may also show selections which are not designed for the specific model consult table 5 4 when choosing For example if the N O or N C contact is chosen the contact will remain open closed until in the inverter an error occurs or warning is issued from those selected once in the inverter the error has occurred or warning issued the relay switches its status to closed open The contract remains in this position i e switched over with respect to its rest position until the error code or warning is solved e TWILIGHT the relay switches only when the input voltage set for grid connection is exceeded For example if the N O or N C contact is chosen the contact will remain open closed until the inverter reaches a Vin which is greater than that selected for grid connection The contact will remain in this position i e switched over with respect to its rest position for the time the inverter is on even if disconnected from the grid This mode is useful for disconnecting any large output transformers which may incur large levels of consumption during the night To select the alarm contact operating mode access the Alarm s
11. UV 60 secs For example having set the UV Prot time at 60 seconds if Vin voltage drops below 90V at 09 00 the inverter will remain connected to the grid at O power until 09 01 The default time is set at 60 seconds The user may change this setting from 1 to 3600 seconds POUWEF DITe hanging the Shape of Power Installation and operating manual Page 73 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 6 13 MPPT This function is used in order to set the parameters for the Maximum Power Point Tracker function MPPT Amplitude this setting allows you to choose the amplitude of disturbance introduced in DC in order to establish the optimal work point There are 3 choices LOW MEDIUM HIGH The default setting is MEDIUM MPPT Amplitude MPPT Amplitude Multi Max Scan Low You can enable or disable the scan function to identify the maximum multiples MPPT scan En Dis Enable The time interval for system maximum multiples scans can be set using this function The default setting is 15 minutes Scan Interval 15 min You may also decide to perform a manually scan by using the specific control Manual Scan 5 5 6 14 Alarm Message Follow the procedure described below in order to program the error message that will be shown on the display Alarm Message Pressing the ENTER key will allow you to access the relevant submenu N Power one hanging the Shape of Power Installation and operat
12. which must be understood and followed carefully to avoid damage and malfunctions to equipment WARNING Paragraphs marked by this symbol contain actions and instructions The equipment has various labels those with a yellow background regard the safety devices provided Make sure to have read and thoroughly understood the labels before installing the equipment The symbols used are as follows System earth conductor grid protection earth PE Alternating Current AC Value Direct Current DC Value Phase Grounding ground Danger risk of electric shock Time to discharge stored energy 5 minutes NL Ll Caution hot surface ANC 5 AS Power one bw G hanging the Shape of Power Installation and operating manual Page 4 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 USEFUL INFORMATION AND SAFETY REGULATIONS FOREWORD gt gt The installation of AURORA inverters must be performed in compliance with national and local regulations The AURORA inverter has no spare parts For all kinds of maintenance or repair please contact the authorized repair centre closest to you Please contact the retailer in order to find out the location of the closest service point It is strongly recommended to read all the instructions contained in this manual and to observe the symbols displayed in the individual paragraphs before installing or using the equipment Connection
13. AURORA Inverter 1 Bag containing 1 4 screws 6 3x70 4 SX10 anchors Torx20 screwdriver 1 screw 6x10 5 washers d 18 2 counterparts for signal connectors 3 poles 2 counterparts for signal connectors 8 poles Bracket for wall mounting Copies of this manual Certificate of warranty gt 1 CD ROM with communication software 3 3 Selecting the location for installation The inverter must be installed in a location chosen according to the following considerations The inverter must be placed at a height from ground level so that the display and status LEDs can be read easily gt Choose a location which is protected from direct sunlight and is well ventilated Avoid locations where air is unable to circulate freely around the unit gt Leave enough room around the unit to allow for easy installation and removal from the mounting surface gt Hardware and software maintenance is carried out through the cover on the front of the inverter It is thus necessary to have easy access to this side if you do not wish to remove the unit from its mounting surface The figure below indicates minimum clearances that must be maintained around the inverter POUWEF DITe hanging the Shape of Power Installation and operating manual Page 21 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 150mm 6 2 2 200mm 8 Fig 4 Installation location Minimum clearances around the inverter
14. BATTERY 37 3 6 REPLACEMENT OF THE MEMORY ss scsccecsesessseecececeesesssceeececeesessnsaeeeeceeens 37 3 REPLACEMENT OF THE RS485 COMMUNICATION 38 AN Powe r one hanging the Shape of Power Installation and operating manual Page 9 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 4 COMMISSIONING AND SWITCHING OFF THE INVERTER 39 4 1 START UP PROCEDURE 39 4 2 START UP USING THE SIDE 41 4 3 SHUT DOWN 41 5 USER INTERFACE MONITORING AND DATA TRANSMISSION 42 5 1 USER INTERFACE 42 5 2 DATA TYPES AVAILABLE eee nne enrenn nnne enne trennen 44 5 2 1 Real time operational data eese 44 5 2 2 Data stored inside the inverter eese eee 45 53 LED INDICATORS D 46 5 4 MESSAGES AND ERROR enne ents 51 5 5 LCD DISPLAY siestis R 53 5 5 1 Connection of the system to the grid 53 3 2 2 Error Re Efe e IE 55 5 5 3 First phase Electric parameter check eee 55 Didi M HEU E 59 60 5 5 5 1 60 5 5 5 2
15. Consult the panel manufacturer for the correct temperature coefficient of before calculating the maximum voltage of the photovoltaic array Power one 0 hanging the Shape of Power Installation and operating manual PVI 3 8 4 6 I OUTD xx Rev 1 3 Panel min temp C 20 15 10 10 15 20 25 Page 88 of 94 36 cell panel 48 cell panel 60 cell panel 72 cell panel Panel voltage 21 6 22 4 22 8 23 3 23 7 24 1 24 5 24 9 25 3 25 7 Max number of panels N 319 N NIU 21 21 21 20 al amp 3 Su 5 23 4 E gt E 28 8 18 36 0 29 4 367 29 9 17 37 4 30 5 31 0 17 388 31 6 16 39 5 32 1 16 401 32 7 16 408 332 16 365 338 15 me 343 15 429 Table Power one NAS Changing the Shape of Power Max number of panels A 13 13 12 12 Max number of panels 45 7 Panel voltage 12 12 11 11 11 11 11 10 10 10 Installation and operating manual Page 89 of 94 PVI 3 8 4 6 I OUTD xx 1 3 Value Value Description PVI 3 8 OUTD PVI 4 6 OUTD Maximum input power 4420 W 5260 W Rated input power 4000 W 4840 W Rated input voltage 330 Max absolute input 520 Vdc voltage voltages MIEL from 90 Vdc to 520 Vde operating range Input volta
16. MAINTENANCE AND ASSISTANCE The manufacturer s documentation must be observed KEEP ALL DOCUMENTATION IN A SAFE PLACE POUWEF DITe hanging the Shape of Power Installation and operating manual Page 7 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 PVI 3 8 I OUTD PVI 3 8 I OUTD S PVI 4 6 I OUTD PVI 4 6 I OUTD S This documentation is only valid for the aforementioned inverter versions Power One PVI 4 6 1 0UTD 3L13991F000G SN 549574 WK 26 11 AUAM 500000000 01 Product name plate PVI 4 6 I OUTD S The name plate affixed to the inverter contains the following information 1 Manufacturer code 2 Model code 3 Serial number 4 Week Year of production N Power one hanging the Shape of Power Installation and operating manual Page 8 of 94 PVI 3 8 4 6 I OUTD xx 1 3 CONTENTS 1 INTRODUCTION ccsississcascesssceisessccosssinccossssscisocsbssssesesecssoustveretsscsesebecssesscoesseses 11 1 1 11 2 DESCRIPTION OF THE SYSTEM e eee ee ee 12 2 1 FUNDAMENTAL ELEMENTS OF A PHOTOVOLTAIC SYSTEM STRINGS AND ARRAYS c 14 2 2 DATA TRANSMISSION AND 2 2 04 0000000 0100000000 16 2 3 TECHNICAL DESCRIPTION OF THE AURORA 65 16 2 4 PROTECTIONS cccccccccecsessssscccec
17. The tables below summarized the two types of signals which may be displayed The MESSAGES indicate the current status of AURORA they are not caused by faults and do not involve any action the messages will disappear once normal conditions are re established See the W lines in the following table ALARMS indicate a possible fault in the equipment or connected parts The signal will disappear once causes are removed except in the case of ground isolation problems for which qualified personnel will have to be called in order to have the system restored to normal operation The appearance of an error signal generally involves some form of action by the installer of by the Power One Service The AURORA photovoltaic inverters will show on display much helpful information as possible to those performing the necessary maintenance on the equipment or system See the E line in the following tables Message Error Error Description warning type Sun Low W001 Il Input Voltage under threshold Input voltage under threshold in OFF status Input OC E001 Input Overcurrent Input UV W002 Il Input Undervoltage Input OV E002 Input Overvoltage Int Error E003 No parameters No parameters Bulk OV E004 Bulk Overvoltage Int Error E005 Internal Communication Error Communication error in internal bus Out OC E006 Output Overcurrent Int Error E007 IGBT Sat Sun Low wo11 Bulk Undervoltage Int Error E009 Int
18. as described in the paragraph GENERAL QUESTIONS REGARDING THE USE OF DISPLAY KEYS Type and p n of the inverter Indicates the serial number of the inverter and the firmware revision level E da 0 Wh da 0 0 EUR E da Daily quantity of energy produced da Daily energy savings The value is expressed in the set currency E par 0 KWhEUR E tot Total energy produced since first installation E par Partial energy produced during the period selected by us P out 0 T boostl C P out measured instant output power value In the second line of the display only the higher of the two temperatures is shown T boost1 booster channel 1 switching device temperature T boost2 booster channel 2 switching device temperature Ppk maximum peak power value achieved since the partial function was activated Ppk Day indicates the maximum peak power value achieved during the day The meter is reset when the unit is shut down N Power one hanging the Shape of Power Installation and operating manual Page 57 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 VoutR 230 V VoutS 230 V VoutT 230 V Vout AvgR 230 V Vout AvgS 230 V Vout AvgT 230 V VoutX measured instant phase neutral grid voltage Vout AvgX average grid phase neutral voltage calculated over the last 10 minutes of inverter operation VoutRS 400 V VoutST 400 V VoutTR 400 V Vout AvgR 230 V Vout AvgS 230 V Vout AvgT 230 V VoutXX measured inst
19. bottom of the inverter with a cable gland supplied and use it to pass through the wires Step 5 Remove the cover from the photovoltaic panels WARNING Verify the polarity and the no load voltage on the inverter terminal block to ensure that the connection has been made correctly If the parameters fall within the range defined by the inverter s technical specifications reclose the inverter by replacing the cover and tightening the screws as described in paragraph 0 then and proceed to section 4 N Power one bw G hanging the Shape of Power Installation and operating manual Page 30 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 4 5 Possible configurations of input channels WARNING Before carrying out any operation follow the connection disconnection procedure detailed in paragraph 3 4 1 The inverter models referred to in this manual are supplied with two input channels 1 and 2 thus with a double maximum power point tracker MPPT which are configured in parallel They can however be configured independently by following some simple operations during the installation phase To each individual channel strings of photovoltaic modules which have the same type and number of panels must be connected in series Moreover they must require the same installation conditions orientation and inclination When the two input channels are configured in parallel they must respect the aforementioned requirements with the be
20. diagram AN Power one hanging the Shape of Power Installation and operating manual Page 27 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 WARNING When selecting cables several factors have to be considered nominal voltage isolation rating maximum operating temperatures current rating and flammability rating in accordance with the national regulations of the country of installation Procedure for accessing the internal terminal blocks by removing the front cover 3 4 2 Procedure for accessing the internal terminal blocks by removing the front cover inverter has been disconnected from both the AC and DC sides for at least 5 minutes in order to allow for the internal capacitors to discharge and thus to avoid the risk of electrocution WARNING Before removing the front cover ensure that the AURORA To remove the front cover loosen the 4 screws shown in Fig 9 using the Torx screwdriver provided lt o lt Fig 9 Front cover of the inverter Once the cover has been reassembled ensure to tighten the screws at a torque of at least 1 5Nm 13 2 in Ibs for ensuring a watertight seal power one bw 77 hanging the Shape of Power Installation and operating manual PVI 3 8 4 6 I OUTD xx Rev 1 3 3 4 3 AC and DC wire selection Page 28 of 94 The following tables will help the installer to select AC and DC wires PVI 3 8
21. initialization phase Input power is sufficient to feed the inverter AURORA is checking that the conditions necessary for start up have been satisfied for example input voltage value isolation resistance value etc and starts the grid check gp 3 AURORA is feeding the grid G x After having completed the series of autotests the machine R connects itself to the grid As previously mentioned AURORA will automatically perform a search and analysis of the maximum power point MPPT of the photovoltaic field V 4 Ground isolation fault G AURORA indicates that the isolation resistance value is too low The problem may be linked to an isolation fault in the connection between the photovoltaic field inputs and the ground fault yourself The instructions below must be followed very carefully Please contact a specialist if you do not possess the experience or qualifications necessary to work safely on the system WARNING it is extremely dangerous to attempt to correct the What to do after an isolation fault has been detected When the red LED turns on try to reset the fault indication by using the multifunctional ESC button at the side of the LCD display If AURORA reconnects to the grid normally the fault was due to temporary circumstances for example infiltration of humidity onto the panels due to condensation It 15 recommended to allow a specialized technician to inspect the machine if the fault
22. inverter other AURORA inverters can be added to the system Each of these inverters will be connected to an adequate section of the photovoltaic field on the DC side and will be connected to the distribution grid on the AC side Every AURORA inverter will work independently from the others and from its section of photovoltaic panel will supply the grid with the maximum available power Decisions regarding the structuring of a photovoltaic system depend on a certain number of factors and considerations including the type of panels the availability of space the future location of the plant long term energy production targets etc On the Power One website www power one com a configuration program is available to help you dimensioning your photovoltaic system Aurora Designer Power one 0 hanging the Shape of Power Installation and operating manual Page 16 of 94 PVI 3 8 4 6 I OUTD xx 1 3 PV Array 1 2 5 gt LI Ley b AC disconnect ewitch PV Array 2 DC disconnect Fig 3 Simplified diagram of a photovoltaic system 2 2 Data transmission and monitoring If more than one inverter is used they may be monitored even remotely by using an advanced communication system which is based on the RS 485 serial interface The Aurora Easy Control system is also available as an additional form of monitoring and allows for the remote monitoring of the system via the Inter
23. isolator or automatic switch are 20A 230V for PVI 3 8 I OUTD and 25A 230V for PVI 4 6 I OUTD IN Power one 0 hanging the Shape of Power Installation and operating manual Page 26 of 94 PVI 3 8 4 6 I OUTD xx 1 3 3 4 1 Procedure of CONNECTION DISCONNECTION order to avoid possible damage to property and or persons and damage to the equipment The AURORA inverters have very high operational voltages which can be extremely dangerous if all precautions are not observed WARNING It is advised to carefully follow the steps of this procedure in WARNING The following operations must always be carried out when AN accessing the interior parts of the inverter in order to avoid injury to people and damage to property STEP 1 If the inverter is connected to the power supply grid disconnect it by opening the switch indicated as Part D in Fig 8 STEP 2 Carefully cover the photovoltaic panels with an opaque material or perform the following operations at night Ensure that the photovoltaic field cannot provide power before proceeding with the installation STEP 3 Disconnect the DC part by opening the integrated disconnect switch models with the S suffix or the external disconnect switch AC Ground AC Fault PV La bipolar Protection ENERGY 1 switch Device D gt 100 mA part E COUNTER part F Array 1 part A Fig 8 Electrical connection
24. length of this chain is 1000 meters If several inverters are connected in a daisy chain it will be necessary to assign an address to each See paragraph 5 5 6 1 for information on changing addresses Furthermore the last inverter in the chain must have the line termination contact of the activated line switch S2 120Q TERM in ON position see Fig 24 Each AURORA is provided with default address two 2 and with the S2 switch in the OFF position In order to ensure optimum communication on the RS485 line Power One recommends connecting the PVI USB RS485 232 adaptor between the first unit of the daisy chain and the computer See Fig 25 for details RS485 USB Converter For this purpose other equivalent devices found on the market may also be used however since they have never been specifically tested Power One does not guarantee the correct operation of the connection Please note that these devices may also require an external termination impedance which is not necessary for the Aurora PVI USB 485 232 The following diagram shows how to connect units in a daisy chain configuration Power one 0 hanging the Shape of Power Installation and operating manual PVI 3 8 4 6 I OUTD xx 1 3 Last Aurora 2 Aurora 1 Aurora 9 Fig 25 Daisy chain connection Page 84 of 94 PC with RS232 port Sub D 9 pin male PVI USB RS232_485 RS485 to USB Converter RTN
25. number week year of production Firmware firmware revision level Country Selector Current value currently set standard New value standard that will be set upon re start if the switches are switched over Set new manually set the new selected standard Residual time for which it is still possible to change the applied standard VVVVVV The last menu allows you to see which standard is currently set in the inverter Current Value which will be applied to the next start up New Value after acting on the selectors manually set the new value Set New Value and set the time remaining for making changes to the applied standard Residual Time When the Residual Time is finished it will no longer be possible to make changes to the applied standard and an unblocking code will be needed see paragraph 3 4 7 The time period is 24 hours of operation with the inverter connected to the power supply grid Power one 0 hanging the Shape of Power Installation and operating manual Page 76 of 94 PVI 3 8 4 6 I OUTD xx 1 3 5 6 AUTOTEST PROCEDURE BY USING AURORA COMMUNICATOR The Autotest procedure can be carried out by using the Aurora Communicator software included in the CD provided To carry out autotest follow the procedure below Install the Aurora Communicator software on your Connect the inverter to the PC by using the RS485 UBS converter Start up the Aurora Communicator so
26. 1964 Potenza di Ingresso Potenza 606 1 w n When the Aurora Communicator has completed all of the requested tests a summary screen will appear reporting the results of the various tests Gal Aurora Com File Co Lingus E Mail DataLogger Fiet Aluto 9 a Fe Energia Giornali Td Dco Seb Pot Usa 5 nun paeron 03 1 J Max Tensone A fS verica Mn Tersiore Versione Serial Number iui Settimana Anno 15 11 Data 200901 09 05 44 F Vera Frequenza 2 veria Mn Frequenza Verifica Max Tensione R Valore dt soglia Valore nlevato Vmax 2680 25231 asns PASS Verifica Min Tensione R Valore dt Valore vmn PASS Verifica Max Frequenza Valore di soglia Valore nlevato Fmax mins PASS Verifica Hin Frequenza Qe 2 Valore di soglia Valore rilevato ree potenza ient sons Er 3000 3000 PASS 2000 23 2 kwh soot E Esporte 2 Potenza di Ingresso Caricamento Completato Potenza 3993 1 W Desktop NOTE Click on the Export button to export the test results onto your PC in cs
27. Data types available through the appropriate interface software 5 2 1 Real time operational data can be transmitted on demand through the communication lines and will not be internally registered inside the inverter For transmitting data to a PC the free AURORA Communicator software can be used This software is included in the installation CD please check the website www power one com for the latest Real time operational data updated version The following data is available VVVVVVVVVVVVVVVVVVV VV VV Grid voltage Grid current Grid frequency Power transferred to the grid Voltage of photovoltaic array 1 Current of photovoltaic array 1 Voltage of photovoltaic array 2 Current of photovoltaic array 2 Temperature of internal semiconductors Serial number of Code Week of production Firmware revision code Daily energy System earth leakage current Total energy Partial energy Mean grid voltage Isolation resistance Leakage current to the ground Date time Daily peak power Absolute peak power Input power Power one hanging the Shape of Power Installation and operating manual Page 45 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 2 2 Data stored inside the inverter AURORA stores the following data internally Total meter of grid connection time Total meter of energy transferred to the grid Partial meter of energy uses the same start time as the partial time meter Daily energy meter
28. I OUTD 167 AWG 194F 75 C 90 C DC input wiring PVI 3 8 I OUTD 8 6 10 6 Ground PVI 3 8 I OUTD 4 4 AC output wiring PVI 3 8 I OUTD 8 6 10 6 Main ground PVI 3 8 I OUTD 6 6 PVI 4 6 I OUTD AWG 167 AWG 194F 75 C 90 C DC input wiring PVI 4 6 I OUTD 8 6 10 6 Ground PVI 4 6 I OUTD 4 4 AC output wiring PVI 4 6 I OUTD 8 6 8 6 Main ground PVI 4 6 I OUTD 6 6 AN POWEF Ie NAS Changing the Shape of Power Installation and operating manual Page 29 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 4 4 Installation of the AURORA inverter WARNING The maximum DC input current to each of the two MPPT circuits should not exceed 14Adc PVI 4 6 I OUTD and 12 5Adc PVI 3 8 I OUTD under any conditions WARNING Follow the procedure step by step in order to avoid damage to things and injury to people Step 1 Disconnect the inverter from the AC grid by turning off the AC switch part D in Fig 8 Also turn off the DC part by using the DC switch integrated in S models or external Step 2 Remove the inverter front cover as described in paragraph 0 Connect the DC cables to the inverter carefully checking the correct polarity For possible connection types refer to 3 4 5 Step 3 Connect the AC cables to the terminal block following the instructions laid out in paragraph 3 4 6 Step 4 optional Connect the signal cables to the specific terminal block Replace one of the capped holes present on the
29. LN POWEI DIIE VASO hanging the Shape of Power AURORA Photovoltaic Inverters INSTALLATION AND OPERATING MANUAL Model number PVI 3 8 4 6 I OUTD Rey 1 3 Installation and operating manual Page 2 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 TABLE OF CHANGES Revision of m Author Date Description of changes Document 1 0 Mastronardi F 03 08 10 First release 1 1 Mastronardi F 17 05 11 First review 12 Statuti A 30 06 11 Second review 1 3 Brogi D 06 07 11 Third review KEEP THESE INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS AN AN POWER ONE The total or partial reproduction of this document by any means is forbidden without the authorization of Power One POUWEF DITe hanging the Shape of Power Installation and operating manual Page 3 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 HOW TO USE THIS MANUAL This manual contains important instructions regarding safety and operation which must be understood and carefully followed during the installation and maintenance of the equipment In order to reduce the risk of electric shock and to be sure that the equipment is correctly installed and ready to operate special safety symbols are used in this manual to highlight potential safety risks or useful information The symbols are the following which must be understood and followed carefully to avoid potential harm to people NOTE Paragraphs marked by this symbol contain actions and instructions
30. T OR RJ45 CONNECTORS 81 6 1 1 RS 485 serial port eee te ttr herr Eee tede b 61 6 1 2 RJA5 connector S voces E 82 63 Daisy eha m 83 7 TROUBLESHOOTING wiisssiscssssesscesssscccsassdsasossscssviccscsseassassssicsssssssesssasvisosesses 85 TECHNICAL SPECIFICATIONS ssscccssssscccssssecesssccccsssccscsscessssssccesenee 87 8 1 INPUT VALUES 87 8 2 OUTPUT 90 8 3 GRID PROTECTION 5 5 nnn 90 8 4 GENERAL CHARACTERISTICS 6 00 91 8 5 POWER 93 Powe r one hanging the Shape of Power Installation and operating manual Page 11 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 1 INTRODUCTION This document is a technical description of the AURORA photovoltaic inverter the aim of the document is to provide the installer and user with the necessary information regarding the installation operation and use of AURORA photovoltaic inverters 11 PHOTOVOLTAIC ENERGY In the energy transformation process industrial companies the greatest energy consumers have for many years now been experimenting with ways of saving energy and lowering pollutant emissions through the prudent and rational consumption of known resources and have been searching for new forms of clean and inexhaustibl
31. Weekly energy meter Monthly energy meter Annual energy meter Energy meter over last 7 days Energy meter over last 30 days Energy meter over last 365 days Energy meter for a user defined period Daily energy buffer produced over the last 366 days Buffer of last 100 fault signals with error code and time mark VVVVVVVVVVV VV All the meter data is shown on the LCD display and on the RS 485 interface the daily energy and error buffers can only be viewed through the RS 485 interface Power one 0 hanging the Shape of Power Installation and operating manual Page 46 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 3 LED indicators At the side of the display there are three LEDs The first from the left POWER indicates the proper functioning of the inverter the central LED FAULT indicates the presence of an anomaly and the right hand LED indicates a ground fault 1 The green LED Power indicates that AURORA is operating correctly When the unit is undergoing commissioning and the grid is being checked this LED will be flashing If a correct grid voltage is detected the LED will stop flashing and will emit a steady light as long as solar radiation is sufficient to start up the unit If not the LED will continue to flash until solar radiation becomes strong enough to start up the inverter During this phase the LCD display will show the message Awaiting sun 2 The yellow LED FAULT indicate
32. ample batteries WARNING The Aurora inverters are designed to be supplied by sources of Should the DC source panel be unavailable it is possible to force the start up of the display for brief periods by supplying it from the grid see paragraph 4 2 Depending on the DC input voltage present the inverter will behaves as follows a When the inverter is switched off it starts up as soon as an input voltage value of 130V is reached b The inverter displays the message Awaiting Sun until the input voltage exceeds the set Vin start value see paragraph 5 5 6 8 c When the Vin start value is exceeded the inverter displays the message Vac absent if the grid is not connected whereas if the grid is present the inverter connects to it d The inverter will stay connected to the grid if the input voltage is between 70 of the set Vin start value and 520 Vdc If the input voltage is outside this range the inverter disconnects from the grid AS POWEF DITe 0 hanging the Shape of Power Installation and operating manual Page 40 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 The procedure for commissioning AURORA is as follows 1 Set the inverter integrated DC disconnector for the photovoltaic panels to the ON position 2 NOTE The DC disconnector of the panels may or may not be US integrated into the inverter depending on the chosen model 2 Setthe external AC disconnector related the grid to the ON posi
33. ant concatenated voltage IoutR 5 6 ToutS 5 5 ToutS 5 8 FoutR 50 01 Hz FoutS 50 01 Hz FoutS 50 01 Hz Tout measured instant grid current value Fout measured instant grid frequency value Vini 0v Iinl 00 Vinl input instant voltage value measured at channel 1 input In input instant current value measured at channel 1 input Vin2 0v lin2 0 0A Vin2 input instant voltage value measured at channel 2 input Iin2 input instant current value measured at channel 2 input Or Vin lin 0 0A In the case of configuration with one input connected and a second input connected in parallel this screen is shown instead of the 2 screens previously described Power one NAS Changing the Shape of Power Installation and operating manual Page 58 of 94 PVI 3 8 4 6 I OUTD xx 1 3 Pint OW Pin2 OW Pinl measured input instant power of channel 1 Pin2 measured input instant power of channel 2 Pin In a configuration with one input connected and a second input connected in parallel this screen is shown instead of the screen previously described IsoOF 5 5 Vend 200V IsoOF The value indicates the quality of the earth insulation with reference to the unitary value which is sufficient for operation In the example of the screen above insulation is 5 5 times the minimum Vgnd measured voltage value between the negative earth input This screen is only displayed in the case of groundi
34. ay composition power one NA Changing the Shape of Power Installation and operating manual Page 15 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 AN WARNING To prevent damage to equipment the string voltage must never exceed 520 Vdc Due to the negative thermal coefficient of the open circuit voltage of the photovoltaic module maximum voltage is obtained in conditions of minimum ambient temperature It is advised to check the configuration of the photovoltaic generator by means of the Aurora Designer dimensioning software ics NOTE A minimum Vstart input voltage of 200 Vdc voltage can be set from the control panel within the range of 120 Vdc to 350 Vdc is required in order to start the Aurora inverter grid connection sequence Once connected the inverter will transfer the maximum available power to the grid for any Vdc input voltage value within the range between 70 of the value set for Vstart and 470V The power transferred for each array is also limited by the maximum manageable current see paragraph below Error Reference source not found and Error Reference source not found show the limits for which maximum power is transferred The current of each array must also fall within the limits of the inverter For the AURORA inverters the maximum current coming from each input can be 14Adc for PVI 4 6 I OUTD models or 12 5 A for PVI 3 8 I OUTD models In the event that the photovoltaic system exceeds the capacity of a single
35. continues to occur It is recommended to allow a specialized technician to inspect the machine if the fault continues to occur If AURORA does not reconnected to the grid it is necessary to S Power one hanging the Shape of Power Installation and operating manual Page 50 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 put AURORA into a safe condition by isolating it on both the DC and AC sides and contacting an authorized centre in order to have the fault repaired V 5 Anomaly Fault indication Each time that AURORA s check system detects an anomaly fault in the operation of the monitored system the yellow LED lights up continually and a message indicating the type of problem detected will appear on the LCD display V 6 Internal ventilation system anomaly G 4 Indicates that the ventilation system is not woking correctly This R x should not cause problems as the fan is only activated when high temperatures are combined with high output power 7 Grid disconnection V 4 When the system is functioning normally and a grid failure event c B occurs the yellow LED will immediately light up with a steady R light and the green LED will flash POUWEF DITe hanging the Shape of Power Installation and operating manual Page 51 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 4 Messages and error codes The system status will be identified by message or error signals shown on the LCD display
36. d down in accordance with the specifications outlined in the relevant documentation In particular during transportation and handling the components must not be bent and the isolation distances must not be changed There must be no contact between electronic components and connection terminals Electrical components must not be mechanically damaged or destroyed potential risk for health ELECTRICAL CONNECTION When working with the live inverter national regulations regarding accident prevention must be respected Electrical installation must be carried out in accordance with the relative regulations e g conductor sections fuses PE connection Power one 0 hanging the Shape of Power Installation and operating manual Page 6 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 OPERATION The system in which the inverters are installed must be equipped with further control and protection devices in accordance with the relative applicable safety standards e g compliance with technical equipment accident prevention regulations etc Calibration variations are possible through the use of the operational software After having disconnected the inverter from the mains grid the live parts and the electrical connections must not be touched for a while as capacitors may still be charged For this reason all the related signs and marks present on the devices must observed During operation all covers and doors must be closed
37. d into the new one By so doing you can continue to save present and future daily data on this memory and avoid losing the data already stored in it See Error Reference source not found power one 0 hanging the Shape of Power Installation and operating manual Page 38 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Fig 16 Inverter memory WARNING This component must be replaced by qualified personnel only 37 Replacement of RS485 communication board WARNING Before carrying out any operation follow the connection disconnection procedure detailed in paragraph 3 4 1 It is possible to replace the RS485 communication board Fig 17 RS485 Board WARNING This component must be replaced by qualified personnel only power one NAS Changing the Shape of Power Installation and operating manual Page 39 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 4 COMMISSIONING AND SWITCHING OFF THE INVERTER WARNING do not place any items of any sort on top of AURORA during operation WARNING do not touch the heart sink when the inverter is operating as some parts may be extremely hot 4 1 Start up procedure To start the inverter and interact with the display using the keypad a minimum voltage of 130Vdc is necessary on at least one of the DC INPUTS limited current solar panels It is thus recommended not to use sources that may supply sudden peaks of current capable of damaging the circuitry for ex
38. d you wish to start the inverter press the side button shown in Error Reference source not found for more than 2 seconds A beep indicates that the system has acknowledged the input given by pressing the button The inverter will remain switched on for 10 minutes allowing for the monitoring of any type of value on the display statistics settings etc The inverter will not connect itself to the grid until a valid and stable DC input voltage is present When the inverter is started up under these conditions with no DC its consumption is less than 20W Fig 18 Button for starting up the inverter from the grid 4 3 Shut down procedure The inverter can be shut down in three different ways 1 Disconnect DC and the AC grid by disconnecting their disconnectors in any order The inverter will shut down after a few seconds which are required in order to discharge the internal capacities 2 Disconnect DC by disconnecting the relative disconnector and wait for the set UV prot Time see paragraph 5 5 6 12 3 Disconnect the grid by disconnecting its disconnector with a DC input lower than 80 Vdc power one Changing the Shape of Power Installation and operating manual Page 42 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 USER INTERFACE MONITORING AND DATA TRANSMISSION 51 User interface mode Normally the AURORA inverter operates automatically and does not require any particular controls When solar radiatio
39. dvanced anti islanding protection system certified according to the following directives Guide for connection to the ENEL low tension distribution grid VDE V 0126 1 1 Royal Decree RD1663 2000 of Spain UK G83 1 VVVV Power one 0 hanging the Shape of Power Installation and operating manual Page 18 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 2 4 2 Ground fault RCD protection WARNING In some cases national and local regulations make it obligatory to connect one of the DC input terminals to the system ground Carefully refer the national standard in order to ground the inverter input correctly A specific connector allows connecting one and only one of the two DC input terminals positive or negative to the ground A sophisticated ground protection circuit constantly monitors the ground connection deactivates the inverter in the event that a ground fault is detected and indicates the ground fault condition through a red LED located on the front panel The AURORA inverter is equipped with terminals for the system ground conductors For further information about the grounding of terminals and protections refer to section 3 4 9 is NOTE For further details about disconnecting the AURORA inverters or about the causes of malfunction refer to paragraphs 0 Protections against ground faults comply with the following directives Guide for connection to the ENEL low tension distribution grid VDE V 0126 1 1 Royal Decre
40. e energy Renewable energy sources provide a fundamental contribution to solving the problem In this context the exploitation of solar energy to generate electrical energy photovoltaic 1s becoming increasingly more important across the world Photovoltaic energy is a great advantage in terms of environmental protection as the solar radiation that we receive from the sun is directly transferred into electrical energy without involving any form of combustion and without producing waste products which would pollute the environment Power one 0 hanging the Shape of Power Installation and operating manual Page 12 of 94 PVI 3 8 4 6 I OUTD xx 1 3 2 DESCRIPTION OF THE SYSTEM AURORA is an inverter which is capable of feeding the power supply distribution grid with energy obtained from photovoltaic panels The photovoltaic panels transform energy radiated by the sun into electrical energy in the form of direct current or DC through a photovoltaic field also known as a PV generator to feed the distribution grid however and in order to make energy available for use it is necessary to transform it into alternating current or AC This conversion known as DC AC conversion is carried out in an efficient way by the AURORA inverters without rotating elements only using static electronic devices When used in parallel with the distribution grid the alternating current output from the inverter flows directly into th
41. e RD1663 2000 of Spain UK G83 1 VVVV 2 4 3 Additional protective devices The AURORA inverters are equipped with additional protections in order to ensure its safe operation under any circumstances These protections include gt continual monitoring of the grid voltage to guarantee that the voltage and frequency values remain within the operational limits gt internal temperature control in order to limit power automatically should it be necessary to ensure that the unit does not overheat heat sink temperature lt 70 C 158 F The numerous control devices create a redundant structure ensuring the absolute safety of its operation POUWEF DITe hanging the Shape of Power Installation and operating manual Page 19 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 INSTALLATION WARNING the electrical installation of the AURORA inverters must be performed in compliance with the applicable local and national standards and laws WARNING connecting the AURORA inverters to the power supply distribution grid may only occur after having received authorization by the utility operating that grid 3 1 Package inspection UIS NOTE The distributor delivered your AURORA inverter to the carrier safely packaged and in perfect condition By accepting the package the carrier assumes responsibility for its delivery Despite careful handling by the carrier both the packaging and its contents may have been damaged during t
42. e domestic circuit which is in turn connected to the public distribution grid The solar power system supplies energy to all that which is connected to it from lighting to all the different domestic appliances etc In the event that the energy supplied from the photovoltaic system is lower than required the quantity of energy necessary to guarantee the normal operation of connected appliances will be taken from the public distribution grid If the opposite occurs that is excess energy is produced it is sent directly into the public grid thus becoming available to other users In accordance with local and National regulations the Energy product can be sold to the distribution grid or credited against future consumption thus producing energy savings Available versions PVI 3 8 I OUTD PVI 3 8 I OUTD S PVI 4 6 I OUTD PVI 4 6 I OUTD S POUWEF DITe hanging the Shape of Power Installation and operating manual Page 13 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 The models whose code ends in S are supplied with an integrated DC switch 600 V 25A as shown in Fig 1 8 OHE 38 1 T d 3 5 8
43. e of Power Installation and operating manual Page 31 of 94 PVI 3 8 4 6 I OUTD xx 1 3 3 4 5 2 Parallel connection of channels WARNING Before carrying out any operation follow the connection disconnection procedure detailed in paragraph 3 4 1 Use this configuration when the input current to one of the channels is greater than 14Adc PVI 4 6 I OUTD 12 5Adc PVI 3 8 I OUTD when the input power to one of the channels is greater than 3kW Parallel configuration is the factory setting therefore it is not necessary to change the connections Fig 10 Parallel connection of channels Check that the jumpers are inserted and that the selector switch in Fig 11 is in the PAR position power one NAS Changing the Shape of Power Installation and operating manual Page 32 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Fig 11 Parallel independent configuration switch power one Na Changing the Shape of Power Installation and operating manual Page 33 of 94 PVI 3 8 4 6 I OUTD xx 1 3 3 4 6 Connection to the AC grid WARNING Before carrying out any operation follow the connection disconnection procedure detailed in paragraph 3 4 1 Step 1 Remove the front cover of the inverter as shown in section 0 Step 2 Connect the AC cables from the external disconnector to the internal inverter terminal box indicated by the serigraphy GRID Step 3 Install the cable gland supplied o
44. e of both channels N Power one hanging the Shape of Power Installation and operating manual Page 94 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Power Derating single channel 3000 4 2500 4 2000 4 PVI 4 6 3 8 Pout W 1500 1000 4 500 4 Vin V Figure 29 Derating curve compared to input voltage use of only channel ics NOTE The curves show a zone of non operation up to 90V a linear derating zone up to 170V PVI 4 6 and 140V PVI 3 8 a zone of constant rated power and a high voltage derating starting at 470V Actually the low voltage operating zone depends on the setting of the minimum starting voltage 200V default Once the converter is switched on it will continue to operate according to the curves up to a minimum value of 70 of the set starting voltage i e with a default value of 200V the converter will have a minimum operating voltage of 140V Conditions for power reduction due to environmental conditions and input voltage may occur at the same time but power reduction will always occur with reference to the lower detected value POUWEF DITe hanging the Shape of Power
45. e this follow the instructions in chapters 5 3 5 4 5 5 in order to identify they kind of anomaly which is occurring If the instructions in this document do not help in eliminating the problem contact the help service or the installer see the instructions in the following page Power one 0 hanging the Shape of Power Installation and operating manual Page 86 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Before contacting the help service we ask you to have to following information close to hand in order to maximize the efficiency of the operation INFORMATION ON AURORA US NOTE Information available directly from the LCD display v v Rr rod AURORA model Serial number Week of production Which LED is flashing Intermittent or steady light Which signals are shown on the display Brief description of the fault Have you noted if the fault can be reproduced If so in what way Have you noted if the fault repeats itself cyclically If so how often Was the fault present at the time of installation If so has it worsened Describe the atmospheric conditions present at the time the fault appeared INFORMATION on the Photovoltaic Field Brand and model of photovoltaic panels Y System structure maximum array voltage and current values number of strings in the array number of panels per string POUWEF DITe hanging the Shape of Powe
46. ecsessaeceeececsessaeeecececsessaaeceeececeeseseeeeeeeeenea 17 2 4 1 Anti Islanding eese entente trennen rene eene enne 17 2 4 2 Ground fault RCD protection eese 18 2 4 3 Additional protective devices eese esent 16 3 INSTALLATION e 19 3 1 PACKAGE INSPECTION reet rU ERE a eed 19 3 2 INSPECTING THE PACKAGE CONTENTS 20 3 3 SELECTING THE LOCATION FOR 5 2222 20 3 3 1 WAU MOUNT M 23 3 4 PRELIMINARY OPERATIONS FOR ELECTRICAL 25 3 4 1 Procedure of CONNECTION 26 3 4 2 Procedure for accessing the internal terminal blocks by removing the MOT COVER seis eie tbe Wied as iei ak eed een ee re sess 27 3 4 3 AC and DC wire 28 3 4 4 Installation of the AURORA inverter essen 29 3 4 5 Possible configurations of input 30 3 4 5 1 Connection with independent channels 30 3 4 5 2 Parallel connection of channels see 31 3 4 6 Connection to the AC 33 3 4 7 Connection of alarm cables and RS465 optional sess 34 3 4 8 Selection of grid standard seen 34 3 4 9 Grounding of DC inputs eese eene ener nenne 35 3 5 CR2032 LITHIUM
47. efault setting To allow the Aurora photovoltaic inverter to operate regularly installers must select the grid standard in accordance with the national regulations To access the selector switches remove the front cover as shown in paragraph 0 NOTE The 0 0 default position does not allow connection to the power supply grid Select the standard based on the following table Left selector Right selector Grid standard Language switch switch 0 0 Standard de selected English 0 1 VDE 0126 German 0 2 UL 1741 208V English 0 3 UL 1741 240V English 0 4 UL 1741 277V English 0 5 ENEL Italian 8 8 Reserved F Reserved AN Power one hanging the Shape of Power Installation and operating manual Page 35 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 The table above is the basic table further additions can be added when new standards become available Once the standard has been chosen a meter will begin to scan the connection to the grid for 24 hours Before 24 hours expire the selected standard can still be changed Once the 24 hours have passed the Power One assistance center would have to send an Authorization Key to unblock the inverter and allow further changes Remaining time can be checked on the information menu Fig 13 Selector switches for grid standard and grounding connector positioner 3 4 9 Grounding of DC inputs WARNING Before carrying out an
48. elected from the following OV Test Disconnection from distribution grid due to Overvoltage UV Test Disconnection from distribution grid due to Undervoltage Power one hanging the Shape of Power Installation and operating manual Page 68 of 94 PVI 3 8 4 6 I OUTD xx 1 3 OF Test Disconnection from distribution grid due to Maximum frequency UF Test Disconnection from distribution grid due to Minimum frequency OV Test During this test the limit set for the maximum grid voltage AC is reduced gradually until reaching the threshold for which the disconnection of the inverter from the distribution grid occurs At the end of the test when the inverter has disconnected itself from the grid the test result will be shown on the display Pressing the ESC key will allow you to return to the Autotest menu from which you can select another test UV Test During this test the limit set for the maximum grid voltage AC is increased gradually until reaching the threshold for which the disconnection of the inverter from the distribution grid occurs At the end of the test when the inverter has disconnected itself from the grid the test result will be shown on the display Pressing the ESC key will allow you to return to the Autotest menu from which you can select another test AN Power one hanging the Shape of Power
49. ernal Error Internal error Message Error Error Description warning type Grid Fail W003 Il Grid Fail Grid out of range Int Error E010 Bulk Low Int Error E011 Ramp Fail DC DC Fail E012 Internal error N Power one 0 hanging the Shape of Power Installation and operating manual PVI 3 8 4 6 I OUTD xx Rev 1 3 Page 52 of 94 Wrong Mode Il E013 Wrong Input setting Single instead of dual Wrong setting of inputs single channel instead of dual Over Temp E014 Overtemperature Internal temperature too high Cap Fault E015 Bulk Capacitor Fail Bulk capacitor failure Inv Fail E016 Internal error Int Error E017 Internal error Ground F E018 leak fail High leakage current or incorrect ground mode Int Error Il E019 Sensor fail Leakage current error Int Error E020 Output relay self test fail Output relay self test failed Int Error E021 Output relay self test fail Output relay self test failed Int Error Il E022 Output relay self test timeout Output relay self test failed Int Error E023 Dc Injection Error Int Error E024 Internal Error Int Error Il E025 Riso Low Log Only Isolation resistance low log only Int Error E026 Internal error Int Error E031 Output relays fail Output relays fault Int Error Il E032 Unbalanced output currents Output currents unbala
50. etal bracket Part B and then into the hole on the bottom of the inverter gt WARNING bracket must be attached to the wall vertically the side with the hook Part C must be facing upwards while the side with the PEM M6 Part G must be facing downwards NOTE If the device is to be mounted onto a concrete wall holes must be created of diameter 10mm and depth 75mm NOTE When the device is installed on walls of materials other than concrete suitable screws and anchors should be used Power One recommends always using stainless steel screws Attach the inverter to the hook Part C present on the upper part of the bracket by using the metal fin fixed onto the upper part of the rear of the inverter This metal fin has a point Part D in correspondence to the fixing hook of the wall mounting bracket Part C Once the upper part of the inverter has been attached fix the lower part to the PEM M6 present on the bracket by using the special slot on the lower flange of the inverter Part H N Power one hanging the Shape of Power Installation and operating manual Page 24 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Fig 7 Wall mounting power one gt Changing the Shape of Power Installation and operating manual Page 25 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 4 Preliminary operations for electrical connection A A A A WARNING The electrical connection must on
51. evious grid connection phases and electrical parameter checks have been completed other screens become available which allows us to monitor the inverter operation from various viewpoints By pressing the ESC key 1st key from display 3 new screens become accessible GENERAL QUESTIONS RELATING TO THE USE OF DISPLAY KEYS Pressing the UP and DOWN keys allows you to move from one entry to the next Pressing the ESC key allows you to return to the previous session described in chapter 5 5 3 Pressing ENTER allows you to access the corresponding sub menu Power one 0 hanging the Shape of Power Installation and operating manual Page 60 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 5 Statistics Select the STATISTICS menu to display the following submenu Partial Today Last 7 days Last month Last 30 days Last 365 days User period The display only shows 2 lines so to scroll through the entries or open the corresponding submenus use the keys at the side of the display as described in paragraph 5 5 3 GENERAL QUESTIONS REGARDING THE USE OF DISPLAY KEYS The selected entry will be highlighted by an arrow on the left hand side of the display as shown in the figure below 5 5 5 1 Total By selecting Total you can access the following information Time Lifetime operation time E tot Total energy produced Val Economic gain CO2 CO2 saving compared to fossil fuels AN POUWEF DITe
52. ftware The start up screen will be displayed AN POUWEF DITe hanging the Shape of Power Installation and operating manual Page 77 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 e Click on Configuration gt Configure Inverter E Aurora Communicator 2818 EE Confgureione Lingua Statistiche E Mail Datalogger AuorePlDekbp Finestra Auto a Cm sig ce stato Potenza di Uscita e In the Configure inverter window click on Scan all the connected inverters will be shown under Inverter list Select the inverter upon which the autotest is to be performed and press OK E Aurora Communicator v2815 7 args Fle Configurazione Lingua Statistiche E Mail Daalegge Aurcra PVIDesktep Finestra Aiuto j 7 a 70 Lats vere zum Td Modelo M Configurazione invert Lista Inverter Energia Potenza di Uscita 1 Inverter 0 0 W N Power one NAS Changing the Shape of Power Installation and operating manual Page 78 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 e the start up page the selected inverter will now be shown Right click on the S N of the inverter and click Autotest ingua Statistiche E Mail Datalogger Aurora PVIDesktop Finestra Aiuto SA Lists Inverter ere en a rere
53. ge MPPT operating range at full power Max short circuit current of each array Eure nue Max operating input current of each array eae input power of 3000 W each array PV ground fault Isolation detection system PTC protection Input channel Parallel Independent configuration array The total input power must remain within the max recommended DC power value The independent channel configuration cannot be used with positive grounding setting from 200 Vdc to 470 Vdc power one NAS Changing the Shape of Power Installation and operating manual Page 90 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 US NOTE If the photovoltaic field connected to the inverter supplies an input current which is greater than the maximum usable value the inverter will not be damaged as long as the input voltage is within the permitted range 8 2 Output values Value PVI 4 6 OUTD Value PVI 3 8 OUTD Rated output power 3800W 4600 W Grid voltage maximum 180 264 Vac operating range Grid voltage rated 230V Grid frequency 41163Hz maximum range Grid frequency rated 50Hz Rated output current 165A 20A Description 18 2A Max output current 16 A for UK Version 22 5 G83 1 20 25 Output over current protection 83 Grid protection characteristics Complies with gt Guide for connection to the ENEL power supply distribution grid Anti islanding pro
54. hrough the numbers in descending order from 31 to 1 gt Use UP to scroll through the numbers in ascending order from 1 to 31 To set the month gt Use DOWN to scroll through the months from December to January gt Use UP to scroll through the months from January to December If an invalid date is entered the display will show the following AN Power one 0 hanging the Shape of Power Installation and operating manual Page 64 of 94 PVI 3 8 4 6 I OUTD xx 1 3 5 5 6 Settings If you select SETTINGS from the Main menu chapter 5 5 4 the first screen will appear on the display concerning the password Password Password The default password is 0000 It can be changed using the display keys in the usual way gt Use ENTER to scroll from one figure to another from left to right gt Use ESC to return to the previous figure from right to left gt Press ESC repeatedly to return to the previous menus as described in chapt 5 5 3 Use DOWN to scroll through the numbers in descending order from 9 to 0 gt Use UP to scroll through the numbers in ascending order from 0 to 9 After having entered the correct password press ENTER to access to the different information saved in this section Address Display settings Service New Password Currency Date Time Language Vstart Autotests Alarm Remote control UV Prot time MPPT Alarm Message The display only shows 2 lines so to scroll th
55. ing manual Page 74 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 C Enable Disable Enable Msg Compose message Disable Msg Move the selection arrow using the UP and DOWN keys press ENTER to navigate the submenus or select the functions Once the personalized message has been enabled you must compose the message itself Compose Message message Upon selecting Compose Message you will be able to write the first line of the message The maximum numbers of characters is 16 Pressing the Enter key 17 times will allow you to move to the second line To write the message use the display keys following procedure below gt Use the ENTER key scroll from one position to the next from left to right gt Use the ESC key to return to the previous position from right to left gt Press the ESC key several times to return to previous menus as described in chapter 5 5 3 gt Use the UP key to scroll through the numbers letters and symbols in ascending order gt Use the DOWN key to scroll through the numbers letters and symbols in descending order POUWEF DITe hanging the Shape of Power Installation and operating manual Page 75 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 7 Info From this menu you can access all the Aurora inverter data and display the grid standard and the chosen language through the specific selectors The menu is structured as follows Product ID part number Serial No serial
56. ly be made after the inverter has been firmly fixed to the wall WARNING The connection from the inverter to the power supply distribution grid must be performed exclusively by qualified personnel and only after authorisation has been received from the power supply provider managing the distribution grid WARNING For details regarding each individual operation it is necessary to read and follow the instructions in this chapter and sub chapters and all safety warnings Read the instructions carefully and follow them step by step Any operation which does not conform to what follows may cause hazardous conditions for the operator installer and can cause damage to the equipment WARNING When designing the system always respect the voltage and current nominal ratings as indicated in chapter 8 Technical Specifications The following in particular must be kept in mind when designing the photovoltaic field gt Maximum DC input voltage to each of the two MPPT circuits 520 Vdc gt Maximum DC input current to each of the two MPPT circuits 14Adc PVI 4 6 I OUTD and 12 5Adc PVI 3 8 I OUTD WARNING Check the national regulations and local standards so that electrical installation complies with them In accordance with the assembly diagram a main isolator comprised of an automatic magnetothermic switch should be inserted between the inverter and the distribution grid on the AC output side The characteristics of the main
57. ly turning itself off The INTENSITY key allows for the regulation of backlight intensity on a scale of 1 to 9 2 Contrast Display light contrast The scale of the display s light tones go from 0 to 9 To select the number press the UP and DOWN keys to scroll and then ENTER to confirm your choice 3 Buzzer key tone setting Selecting ON key tones are on OFF key tones are off 5 5 6 3 Service Only installation staff may access this function A dedicated password only supplied by Power One is necessary to gain access 5 5 6 4 New password This function is used to change the default password 0000 To enter your own personal code the display keys must be used in the following way Use ENTER to scroll from one digit to another from left to right Use ESC to return to the previous digit from right to left Press ESC repeatedly to return to the previous menus as described in chapter 5 5 3 Use DOWN to scroll through the numbers in descending order from 9 to 0 Use UP to scroll through the numbers in ascending order from 0 to 9 VV VVWV 5 5 6 5 Currency This function regards the energy output earnings Name EUR Val KWh_ 00 50 Name set the desired currency using the keys in the same way The default currency is the Euro Val KWh indicates the cost of 1 KWh expressed in the set currency The default setting is 0 50 Euros AN Power one hanging the Shape of Power Installation and operating man
58. n is sufficient to generate power to be input into the grid for example at night AURORA automatically disconnects itself entering into stand by mode The operating cycle is automatically resumed when solar radiation becomes sufficient This will be indicated by the LEDs The AURORA inverter is capable of supplying operational information through the following instruments gt Indicator lights luminous LEDs gt Operational data shown on the LCD display gt Data transmission on a dedicated serial RS 485 line Data can be collected from a PC or data logger equipped with an RS 485 port If an RS 485 line is employed it may be beneficial to use the RS485 USB converter model number PVI USB RS485 232 Furthermore it is possible to use the PVI AEC EVO data logger AN WARNING the RS 485 cable must ensure a protection of at least 600V POUWEF DITe hanging the Shape of Power Installation and operating manual Page 43 of 94 PVI 3 8 4 6 I OUTD xx 1 3 Service Laptop 4 USB Analog inputs Digital Input Output sla RS485 Aurora Easy Control adapter lt 85232 Ethernet Telephone or GSM modem End User s computer Fig 19 Data Transmission Options power one NAS Changing the Shape of Power Installation and operating manual PVI 3 8 4 6 I OUTD xx Rev 1 3 5 2 AURORA supplies two types of data which can be read through the display and or
59. nced Fan Fail W010 Fan No disconnection Fan failure log only Int Error E033 Under Temperature Internal temperature too low IGBT not Il E034 Internal Error ready Remote OFF E035 Remote Off Int Error E036 Vout Avg Average output voltage out of range Int Error W012 Il Clock Battery Low No disconnection Clock battery low Int Error W013 Il Clock Failure No disconnection Clock does not work POUWEF DITe hanging the Shape of Power Installation and operating manual Page 53 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 LCD Display 5 5 1 Connection of the system to the grid The two line LCD display is located on the front panel and shows the following operating status of the inverter and statistical data Y Service messages for the operator Alarm and fault messages During regular operation the display will cycle through available data The screens change every 5 seconds or can be changed manually by pressing the UP and DOWN keys see Fig 20 These 2 screens are displayed at inverter start up POWER ONE Starting up Please wait One of the following two screens may be displayed while waiting for the connection depending on conditions While the system is checking the grid connection the yellow LED next to the display will be lit up constantly and the green LED will be flashing When waiting for solar radiation Waiting sun the yellow LED will be off
60. nefit of being able to exploit full power from the inverter in a single channel The double MPPT structure allows two photovoltaic generators to be run independently one for each input channel which can differ in terms of installation conditions and the type and number of photovoltaic modules connected in series In order for the two MPPT to be used independently the photovoltaic generator connected to each of the inputs MUST have current and power values which are lower than the power limit of the individual input channel The two input channels MPPT are configured in parallel as the default setting All of the input parameters which must be respected to ensure the correct operation of the inverter are reported in the Technical characteristics paragraph After having chosen the type of connection follow the instructions in paragraph 3 4 4 3 4 5 1 Connection with independent channels WARNING Before carrying out any operation follow connection disconnection procedure detailed in paragraph 3 4 1 To use this configuration the input current to each channel must be less than 14Adc PVI 4 6 I OUTD or 12 5Adc PVI 3 8 I OUTD and the input power to each channel must be less than 3kW In order to configure Aurora with independent channels remove the jumpers between the positive and negative terminals in Fig 10 and move the selector switch in Fig 11 to the IND position Power one hanging the Shap
61. net or digital GPRS modem Furthermore a system of radio monitoring is also available as an option PVI Desktop PVI Radio module to obtain a remote data display terminal connected wirelessly 2 3 Technical description of the AURORA inverters Fig 1 shows the block diagram of an AURORA inverter The main blocks are the input DC DC converters known as boosters and the output inverter Both the DC DC converters and the output inverter work at a high switching frequency to enable a compact design and a relatively low weight This version of inverter has a high frequency transformer i e a transformer with galvanic isolation between input and output The high frequency transformer allow galvanic isolation between the primary DC side and the secondary AC side maintaining very high performance in terms of energy yield and export The AURORA inverters are equipped with all of the protections necessary for a safe operation in compliance with the applicable regulations as described in the paragraph on protective devices AN Power one hanging the Shape of Power Installation and operating manual Page 17 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 The block diagram shows the PVI 3 8 4 6 I OUTD model with two independent converters on DC DC input Each of these converters is dedicated to a separate array with an independent Maximum Power Point Tracking MPPT control This means that the two arrays can be installed in diffe
62. ng of the positive or negative terminal Or Riso 20M Vgnd 200V Riso measured isolation resistance value values greater than 20Mohm are to be considered out of reading range Vgnd measured voltage value between the negative earth input This screen will only be displayed if the grounding is disconnected and the channels are configured in parallel Inverter OK Wed 17 May 20 10 If there are no problems OK will be written on the first line of the display with the current date and time displayed on the second AN Power one hanging the Shape of Power Installation and operating manual Page 59 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 In the event of problems with the clock or other inverter parts which are not vital to the operation of the inverter insofar as the unit is still capable of producing energy the type of problem will be indicated on the second line of the display in the place of the date and time Error messages are as follows CLOCK FAIL indicates problems with the clock it is necessary to call assistance BATTERY LOW battery is low ADJ TIME appears when the unit is first turned on or after the battery has been replaced FAN FAILURE does not affect the correct operation of the inverter replace the fan at the first convenient opportunity MEMORY FAILURE data collected can no longer be stored For recovery it is necessary to call for assistance 5 5 4 Main menu Once the pr
63. nto the dedicated hole located on the bottom of the inverter and use it to pass through the AC cables Step 4 Connect the 3 AC conductors to the inverter terminal box following the serigraphy Terminal for protective earth PE the screw located next to the symbol can also be used for connecting to the earth conductor terminal 1 for Neutral N terminal 2 Line L Fig 12 Terminal Block for connection to AC conductors POWEr OnE Changing the Shape of Power Installation and operating manual Page 34 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 4 7 Connection of alarm cables and RS485 optional WARNING Before carrying out any operation follow connection disconnection procedure detailed in paragraph 3 4 1 Step 1 Remove the front cover of the inverter as shown in section 0 Step 2 Replace one of the holes present on the bottom of the inverter with a cable gland supplied and use it to pass though the alarm relay or signal cables Step 3 Connect the wires by following the serigraphy of the signal connector 3 4 8 Selection of grid standard WARNING Before carrying out any operation follow connection disconnection procedure detailed in paragraph 3 4 1 The inverter is provided with two rotary selectors Error Reference source not found which allow installers to choose which grid standard they wish to apply The unit is delivered with the selector switches set in the 0 0 position d
64. ontact can be used for example to activate an acoustic or visual alarm In any case the contact voltage current rating of 230V 1A must not be exceeded Al ARM Fig 22 Alarm contact terminal block This function can activate 4 different modes of alarm By pressing the ENTER key you can access the following submenu Production Alarm Alarm conf Twilight The selected entry is highlighted by an arrow on the left hand side of the display Use the UP DOWN keys to change your selection and the ENTER key to confirm e PRODUCTION the relay is only activated when the inverter is connected to the grid For example if the N O or N C contact is chosen the contact will remain open closed until the inverter is connected to the grid once the inverter is connected and begins to transfer power the relay will switch its status to closed open When the inverter disconnects itself from the grid the relay contact returns to its rest position i e open closed e ALARM the relay is activated in the case of alarm code E AN POWEr ONnE hanging the Shape of Power Installation and operating manual Page 71 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 For example if the N O or N C contact is chosen it will remain open closed until an error occurs in the inverter IT DOES NOT SWITCH OVER IN CASE OF WARNING or code W once an error has occurred in the inverter the relay switches its status to closed open
65. ormation E mon KWh Val EUR CO2 E mon Total energy produced the current month Val Economic gain in the current month CO2 CO2 saving in the current month compared to fossil fuels 5 5 5 6 Last 30 days By selecting Last 30 days you can access the following information E 30d Total energy produced over the last 30 days Val Economic gain over the last 30 days CO2 CO2 saving over the last 30 days compared to fossil fuels POUWEF DITe hanging the Shape of Power Installation and operating manual Page 63 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 5 7 Last 365 days By selecting Last 365 days you can access the following information E 365 KWh Val EUR co2 Kg E 365 Total energy produced over the last 365 days Val Economic gain over the last 365 days CO2 CO2 saving compared to fossil fuels over the last 365 days 5 5 5 8 User period User period This function measures energy saving during a period selected by us By pressing ENTER from the User period screen you can access the following submenu Start 23 June End 28 August To set the start and end dates of the chosen period use the display keys gt Use ENTER to scroll from one field to the next from left to right gt Use ESC to return to the previous field from right to left gt Press ESC repeatedly to return to the previous menus as described in chapter 5 5 3 To set the day gt Use DOWN to scroll t
66. r Installation and operating manual Page 87 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 8 TECHNICAL SPECIFICATIONS 81 Input values A A A WARNING the photovoltaic field and system wiring must be configured in such a way that the PV input voltage is less than the maximum upper limit independent of the model number and operating conditions of the chosen photovoltaic panels As the panel voltage also depends on the operating temperature the choice of the number of panels per string must take into account the minimum ambient temperature for that specific area see table A WARNING the inverter is provided with a linear output derating depending on the input voltage from 470 Vdc 100 output power to 520 Vdc 0 output power WARNING the open circuit voltage of the photovoltaic panels is affected by the ambient temperature the open circuit voltage rises as temperature drops and it is necessary to ensure that the minimum expected temperature for installation does not cause the panels to exceed their maximum upper voltage limit of 520 Vdc The table below is an example which indicates the maximum voltage for each panel for typical panels of 36 48 60 and 72 cells depending on temperature assuming a rated open circuit voltage of 0 6 Vdc for a cell at 25 C and a temperature coefficient of 0 0023 V C The table thus shows the maximum number of panels that may be connected in series depending on the minimum operating temperature
67. r connection to RS 485 and S2 switch 6 1 2 RJ45 connectors Alternatively the RS485 serial connection of the inverters whether as single units or a daisy chain can be performed by means of RJ45 connectors see Fig 24 The wiring must be routed through the holes closed with airtight plugs located on the bottom of the inverter see Fig 23 Input wiring passes through one hole and is assembled to one of the RJ45 connectors output wiring passes through the other hole and is assembled to the RJ45 connector of the next unit It does not matter whether it is no 1 or no 2 insofar as being connected in parallel the signals are the same RJ45 connectors ps 20081 Description 1 Not Used 2 Not Used 3 TR Data Line RS485 Communication 4 R Remote OFF Remote control see paragraph 5 5 6 10 for details 5 TR Data Line RS485 Communication 6 Not Used AN Power one hanging the Shape of Power Installation and operating manual Page 83 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Signal Return Common mass for logical 7 78 signals en Nao 3 1 3 i5 8 Not Used 6 1 3 Daisy chain The RS 485 terminal block or RJ45 connectors can be used to connect a single AURORA inverter or multiple inverters connected in a daisy chain The maximum number of inverters that may be connection in a daisy chain is 62 The recommended maximum
68. ransport The client is invited to perform the following checks gt examine the shipping container in order to check for visible damage holes cracking or any other sign of possible damage to its contents gt describe any damage or missing parts on the delivery documents and to obtain the carrier s full name and signature gt To open the shipping container and examine its contents to check for any internal damage When unpacking make sure not to discard any equipment components or manuals In the event that some form of damage is detected contact the delivery carrier to determine the appropriate course of action As the carrier may request an inspection it is important to keep all shipping material for the inspector gt Should the inspection detect damage to the product please contact your local supplier or authorized distributor They will determine whether the equipment must be returned for repair and will provide the relevant instructions for doing SO gt 1015 the client s responsibility to file a complaint with the carrier Failure to do so may result in the loss of all warranty service rights for any reported damage gt Keep original shipping package in case the device has to be returned for repair Power one hanging the Shape of Power Installation and operating manual Page 20 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 3 2 Inspecting the package contents Description Quantity No
69. rent positions facing in different directions Each array is controlled by an MPPT control circuit Due to the size and high efficiency of the AURORA inverters and the thermal dissipation system operation at maximum power in a wide range of ambient temperatures is guaranteed The inverter is controlled by two independent DSPs Digital Signal Processors and by a central microprocessor Connection to the power supply grid is thus controlled by two independent controllers in full compliance with the current regulations for electrical power supply and its safety The AURORA inverter operating system communicates with related components in order to carry out data analysis All of this ensures the optimal operation of the entire system and a high yield in all isolation and load conditions always fully respecting the relevant directives laws and regulations 2 4 Protections 2 4 1 Anti Islanding In the event of a failure in the local distribution grid due to the power supply provider or if the machine is shut down for maintenance operations the inverter must be physically disconnected in a safe manner in order to guarantee the protection of those working on the grid all in full compliance with the applicable national standards and laws In order to avoid any islanding operations the inverter is equipped with an automatic disconnection system a protection known as Anti Islanding The PVI 3 8 4 6 I OUTD model is equipped with an a
70. rough the entries and access each of the submenus use the UP and DOWN buttons Power one hanging the Shape of Power Installation and operating manual Page 65 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 GENERAL QUESTIONS REGARDING READING THE DISPLAY The selected entry will be highlighted by an arrow on the left hand side of the display Once the chosen entry is selected press ENTER to enter its submenu 5 5 6 1 Address Using this function you can set the addresses for the communication of individual inverters connected to the system on the RS485 line The numbers assigned can go from 2 to 63 Use the UP and DOWN keys to scroll through the numbers New Address 63 The AUTO selection is not usable at the moment 5 5 6 2 Imp Display This function allows you to set the display characteristics Light Contrast Buzzer 1 Light display light setting Mode Intensity With the MODE key it is possible to control the display backlighting After selecting the Mode entry with the arrow and pressing ENTER you will access the following submenu The next screen is ON OFF Auto ON Light always on OFF Light always off so Power one hanging the Shape of Power Installation and operating manual Page 66 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 AUTO Automatic light management The light turns on every time a key is pressed and remains on for 30 seconds before gradual
71. s that AURORA has detected a fault The type of problem will be shown on the display 3 The red LED GFT ground fault indicates that AURORA is detecting a ground fault in the DC side of the photovoltaic field When a fault is detected AURORA will immediately disconnect itself from the grid and the relative error message will appear on the LCD display AUORA will remain in this state until the operator presses the ESC key in order to restart the grid connection process If AURORA does not re connect itself to the grid technical assistance must be called in order to identify and remove the cause of the system fault Fig 20 Location of buttons and LEDs AN POUWEF DITe hanging the Shape of Power Installation and operating manual PVI 3 8 4 6 I OUTD xx Rev 1 3 Page 47 of 94 The following table shows all the possible combinations of LED activation with reference to the operational state of AURORA Key LED STATUS green 1 yellow red green 2 yellow red green red green 4 yellow red green red yellow yellow X KEK KAA A EN LED on Ld LED flashing Dx LED off Any of the aforementioned conditions OPERATIONAL STATUS AURORA self disconnection at night AURORA initialization loading settings and waiting for grid check AURORA is transferring energy to the grid Anomaly detected in the system isolation device
72. tection gt VDE V 0126 1 1 gt Royal Decree RD1663 2000 of Spain UK G83 1 power one A Changing the Shape of Power Installation and operating manual Page 91 of 94 PVI 3 8 4 6 I OUTD xx 1 3 8 4 General characteristics Value Value Description PVI 3 8 OUTD PVI 4 6 OUTD Maximum efficiency 96 596 Internal consumption in stand by mode SEN Internal consumption at lt 2W night Operating ambient from 25 C to 60 C temperature Environmental category For outdoor use Outdoor Pollution degree 3 Overvoltage category in compliance with IEC DC circuit 62109 1 III Output AC circuit Level of casing renee protection Audible noise when internal fan is operating lt 50 Im Size height x width x depth 712 x 325 x 222 mm 24 kg Relative humidity 0 100 condensation point Working altitude 2000 meters max Full power guaranteed up to Amb T 50 C for PVI 4 6 I OUTD or 60 C for PVI 3 8 I OUTD provided that it is not exposed to direct solar radiation power one NAS Changing the Shape of Power Installation and operating manual Page 92 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 Efficiency 0 10 20 30 40 50 60 70 80 90 100 of Rated Output Power Fig 26 Efficiency curve PVI 3 8 OUTD Efficiency 0 10 20 30 40 50 60 70 80 90 100 of Rated Output Po
73. tion The two disconnectors can be closed in any order without the need of giving priority to one over the other 3 Once the two disconnectors are closed the inverter starts the grid parameter control sequence This operation will be indicated by the flashing of the green LED which is labeled POWER and located on the display This check may take from a minimum of 30 seconds to a maximum of some minutes depending on the conditions of the grid itself During the process a sequence of three screens appears on the display e Grid voltage value and indication of status with respect to the values of the technical specifications if within or outside of the range foreseen e Grid frequency value and indication of status with respect to the values of the technical specifications if within or outside of the range 4 Once the connection process has been completed AURORA starts to operate signaling its correct functioning by emitting a warning sound and by keeping the green LED continually on 5 If the grid check does not give a positive result the unit repeats the procedure again until all the grid voltage parameters are within the range During this phase the green LED will be flashing AN Power one hanging the Shape of Power Installation and operating manual Page 41 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 4 2 Start up using the side button If DC voltage is not present but the AC grid is properly connected an
74. tion in the test cycle the system will interrupt this cycle indicating the error code Refer to the table in paragraph 5 4 for information on error codes To customize the display message use the programming procedure described in chapter 5 5 6 14 Alarm Message Until the error has been solved the system will continue to show the following cycle of screens In range Once the error has been rectified the inverter resets all of the function in progress restarting the connection chapter 5 5 1 Connection of the system to the grid 5 5 3 First phase Electric parameter check GENERAL QUESTIONS RELATING TO THE USE OF DISPLAY KEYS During regular operation the display will cycle through available data The screens change every 5 seconds or can be alternated manually by pressing the UP and DOWN keys see Fig 20 In any case to return to the previous menu press the ESC key see Fig 20 e B Fig 21 Activation of cyclical scrolling is indicated by the 2 arrows in the top left hand corner of the display Fig 21 Scrolling can be blocked by pressing the ENTER key A padlock symbol will appear Fig 21 N Power one 0 hanging the Shape of Power Installation and operating manual Page 56 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 If the measures performed previously in chapter 5 5 1 are found to give a positive result then the system will continue with other checks The following screens repeat cyclically
75. to the distribution grid must only occur after having received approval from the Authority or Body in charge of the distribution of electric energy as is required by the current national regulations and must be carried out only and exclusively by qualified personnel The entire solar panel must be covered with an opaque material before connecting it to the appliance as high voltages can occur in the connecting cables generating conditions of serious hazard POUWEF DITe hanging the Shape of Power Installation and operating manual Page 5 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 GENERAL When the inverter is operating there can be parts that are live or non isolated and in some cases also moving or rotating and in addition some surfaces may become hot Unauthorized removal of required protections improper use faulty installation or incorrect operation may cause serious damage to persons and things All operations concerning transport installation commissioning and maintenance must be carried out by qualified and trained personnel only all national standards for the prevention of accidents must be respected According to this basic safety rules qualified and trained individuals must be experts in the mounting assembly commissioning and operation of the product and must and have the necessary skills qualifications and requisites to carry out their tasks ASSEMBLY The devices must be assembled and coole
76. ual Page 67 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 6 6 Date Time The time and date can be modified from this section if necessary Time 14 21 Date 17 May 2006 5 5 6 7 Language Itis possible to set your national language or English English Italian 5 5 6 8 START UP Voltage The start up voltage can be adjusted if they are configured independently also separately for both channels in order to tailor it to the needs of the system The voltage range is from 120V to 350V The default setting for Aurora is 200V This parameter may be varied by using the display keys Set VStart 200V 5 5 6 9 Autotest Operation In accordance with the guide for connection to the ENEL power supply distribution grid the autotest can be launched through the menu on the display or by using an RS485 USB converter and the Aurora Communicator software see paragraph 5 6 for further details The following conditions are necessary for the Autotest to be performed You must have set the ENEL grid standard The inverter must be connected to the grid in a way that allows simulating a disconnection condition Do not carry out any operation during the test execution phase Check that the device is connected to the grid in a stable way Follow the procedure below in order to perform Autotest Access the menu SETTINGS gt Autotest n the section of the menu dedicated to the Autotest the type of test that the device must start may be s
77. ubmenu from the Settings menu select the desired operating mode by using the UP and DOWN arrows and push the ENTER key to confirm your choice 5 5 6 11 Remote Control This setting is used to enable disable the inverter remote switch off function through the appropriate control signal on the signal terminal box If you choose to enable this option it will be possible to control Aurora s ON OFF function by connecting a relay contact or switch between the R and R contacts AS POWEI le 0 hanging the Shape of Power Installation and operating manual Page 72 of 94 PVI 3 8 4 6 I OUTD xx 1 3 Remote ON OFF Remote ON OFF Enable Disable e Disable Aurora operation is automatic depending on the radiation conditions and grid presence and is not influenced by the condition of the control contact Enable by closing the contact between R and Aurora is forced to shut down The state of the control signal can be read from the internal microprocessor and alternatively if this is closed the display will show the forced OFF status Remote OFF Waiting Rem ON to restart 5 5 6 12 UV Prot time Using this function it is possible to set the length of time for which the inverter will remain connected after input voltage drops below the Under Voltage limit fixed at 70 of the activation voltage Power One sets this time at 60 seconds The user may change this setting from 1 to 3600 seconds T Protez
78. v or txt format AN Power one Changing the Shape of Power Installation and operating manual Page 81 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 6 DATA CHECK AND COMMUNICATION 6 1 Connection through RS 485 serial port or RJ45 connectors 6 1 1 RS 485 serial port The RS 485 serial port uses a three wire cable two for signals and a third for ground connection The cable should be passed through the holes located on the bottom of the inverter closed with airtight plugs see Fig 23 The supplied cable gland must be installed into the appropriate hole replacing one of the caps Fig 23 Cable routing for RS 485 connection For ease of installation the inverter is provided with two holes to differentiate the input cable route from the output cable route when several units are connected in a daisy chain as described below Once the cables have been passed through the cable gland they are connected inside the unit to the RS 485 terminal blocks which can be accessed by removing the front cover Refer to par 3 4 2 for information on correct front cover removal and reassembly gt The signal wires must be connected to the T R and T R terminals The ground wire must be connected to the RTN terminal power one hanging the Shape of Power Installation and operating manual Page 82 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 RJ45 No 1 RJ45 No 2 DCAOR A X 4 A Fig 24 Terminals fo
79. wer Fig 27 Efficiency curve PVI 4 6 OUTD AN Power one hanging the Shape of Power Installation and operating manual Page 93 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 8 5 Power Derating In order to ensure inverter operation in safe thermal and electrical conditions the unit automatically reduces power input to the grid Power derating may occur in two cases Reduction in power due to environmental conditions The degree of power reduction and the temperature at which it starts occurring also depend besides ambient temperature on many operating parameters including for example input voltage grid voltage and power available from the photovoltaic field AURORA therefore can reduce power during certain periods of the days according to the value of these parameters However AURORA guarantees maximum power up to an ambient temperature of 50 C for PVI 4 6 I OUTD and of 60 C for PVI 3 8 I OUTD provided that it is not exposed to direct solar radiation Reduction in power due to input voltage The chart shows the automatic reduction in power output when input or output voltage is too high or too low Power Derating parallel channels 5000 4000 3000 PVI 4 6 full power 10 a PVI 4 6 full power 3 PVI 3 8 full power 10 2000 4 PVI 3 8 full power 1000 4 o 50 Vin V Figure 28 Derating curve compared to input voltage Us
80. while the green LED will be flashing As soon as the Vac absent and Awaiting sun conditions have been successfully satisfied the inverter will start the inverter connection procedure Depending on the type of grounding different controls will be performed and different screens shown If the system is grounded one of the two poles is connected to the ground the first screens will be as follows Power one bw G hanging the Shape of Power Installation and operating manual Page 54 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 GND ISO SELFTEST GND ISO SELFTEST RUN Vgnd 130V OK Vend 130V If instead the system is ungrounded neither of the two poles is connected to the ground the first screen will be as follows Control grid 30 sec After the first control the following screens will alternate between them V grid 223 8 V Fgrid 50 17 Hz Connection K OK The grid voltage and frequency values will be displayed along with information regarding whether they are inside or outside the range until the connection is made When connected a beep will sound from the buzzer and from this point the screens will show the measurements as described in paragraph 5 5 3 POUWEF DITe hanging the Shape of Power Installation and operating manual Page 55 of 94 PVI 3 8 4 6 I OUTD xx Rev 1 3 5 5 2 Error messages After the connection has been established if the inverter detects incorrect informa
81. y operation follow the connection disconnection procedure detailed in paragraph 3 4 1 These inverter models are equipped with a special connector for grounding one of the input terminals By positioning of this connection it is possible to choose which terminal to connect to the ground Error Reference source not found shows the cables and the connectors to which they must be connected in order to make the grounding effective S POWEI le 0 hanging the Shape of Power Installation and operating manual Page 36 of 94 PVI 3 8 4 6 I OUTD xx 1 3 NOTE The Aurora inverters are delivered with the grounding connection disconnected The connection is to be chosen during the installation process Fig 14 Connectors for grounding inputs It is possible to make the connection in two ways a Grounding of the negative DC terminal b Grounding of the positive DC terminal WARNING Option b is only available when the inputs are configured in AN parallel YOU MUST NOT use option b if the inputs are configured independently Should you not wish to connect either of the two input terminals directly to the ground you can disconnect the connector and store it within the dedicated housing next to the grid standard selector switches see Fig 13 NOTE Under these conditions neither of the input terminals is completely floating but each is connected to the ground with an impedance of around 1 5 Mohm

User Manual PVI-3.8_4.6-I-OUTD EN

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