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Aurora Outdoor User Manual

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1. V measured voltage T time necessary to take the measurement F measured frequency T time necessary to take the measurement I measured current T time necessary to take the measurement If the test fails the following will be displayed V measured voltage T time necessary to take the measurement F measured frequency T time necessary to take the measurement I measured current T time necessary to take the measurement 5 5 7 10 Alarm The inverter features an alarm function that opens or closes a relay contact access can be gained through the front panel the Alarm Contact Terminal Block 1s shown in Fig 22 This relay contact can be used for instance to activate a siren or a visual alarm in case the inverter is disconnected from the grid no energy output or for any alarm event generated by the system This function can activate two alarm modes Press ENTER to open the relevant submenu Production Fault POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 77 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 An arrow on left side of the display highlights your current selection When the chosen item is selected press ENTER to confirm activation of the chosen mode PRODUCTION Relay is only activated when inverter 1s connected to the grid contact closing across terminals N O and C FAULT triggers relay activation contact closing across terminals N O and C
2. only when an error signal occurs 1 e when grid is disconnected excluding Input Under Voltage Fig 22 Alarm Contacts Terminal Block 5 5 7 11 Remote Control This function is used to disable the inverter manual switch off Operation is as follows set to ENABLE to activate manual ON OFF function set to DISABLE to disable manual ON OFF function so that Aurora operation will only depend on external solar radiation Remote ON OFF Remote ON OFF Enable Disable Manual ON and OFF input is read on inverter digital input When set to OFF the display will cycle through the following screens Remote OFF AN POWET One VSO hanging the Shape of Power Installation and Operator s Manual Page 78 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 7 12 UV Prot time This function is used to set inverter connection time after input voltage drops below Under Voltage limit set at 90V For example if UV Prot time is set at 60 seconds and Vin voltage drops below 90V at 9 00 the inverter stays connected to the grid at 0 power up to 9 01 Power One sets this time at 60 seconds The user can change this setting and set it from second to 3600 seconds 5 5 7 13 MPPT scan This function is used to automatically detect input power max multiples MPPTscan En7Dis Enable This function is used to set time interval for system max multiple scan Default setting is 15 minutes Scan Interval 15 min 5 5 7 14 Scan Int
3. OFF C DC Switch D Signal cable entries SIZE G1 4 WARNING The Switch Box disconnects the DC current from the photovoltaic panels when the switch is in OFF position see the electrical schematics in Fig 11 SD 01 Electrical Schematics DC Switch Box and DOES NOT disconnect the AC line going to the Grid To disconnect the inverter from the AC Grid the AC switch not included in the Switch Box must be disconnected see Fig 9 Connection Diagram AN POWET ONE ASO hanging the Shape of Power Installation and Operator s Manual Page 30 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 WARNING Due to the high voltage present on the power cable in the Switch Box ALWAYS disconnect the Switch Box from the DC power cables as described in the Switch Box Connecting and or Disconnecting procedure see section 3 3 2 prior to working on the cables 1N 1 o IN1 Z Li IN1 IN 1 Q IN2 IN2 o gt N 2 IN2 lt DC Switch Box AURORA o 1 o 2 Fig 11 SD 01 Switch Box DC Electrical Schematics POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 31 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 11 SB 02 Switch Box POS Details A Terminal Block AC OUT B C D _DIN bars for accessories _ Grid Standard Table Main Ground Max Wire Size AWG 4 Refer to local code for minimum
4. IP65 Nema 4X IP65 Nema 4X lt 50 dbA 1m lt 50 dbA lm 787 x 325 x 787 x 325 x 208mm 208mm POWEr One VJ 6 hanging the Shape of Power Page 95 of 108 Arms 20 20 20 Arms 25 25 25 Arms Value PVI 4 2 OUTD 96 8 96 EURO lt 8 W lt 2W 25 C to 60 C IP65 Nema 4X lt 50 dbA Im 787x325 x 208mm Installation and Operator s Manual Page 96 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Weight 18 kg 18 kg 18 kg Relative Humidit a 0 100 0 100 condensation point condensation point condensation point Full power guaranteed up to T amb 45 C for PVI 4 2 55 C for PVI 3 6 and 55 C for PVI 3 0 as far as unit is not exposed to direct sun radiation PVI 3 0 OUTD Efficiency 400 00 peeeeee 95 00 3 REDER oD oS ae eR On nye RW ge de Ra coed cL UE Nir nd ing Dry NA AR aL it Sain We rats all Ga ca el nas an CL php ne E id ie Opn a Pil GUNES PN AN A gan 9 it AL E Nea cas an cn dor SP AR Lay E EN NWR dint demo arensddeerenuaede asl Secermn isha Suara man E ws a Eanes nian N TTT A 85 00 eee ee em ee ee em nm em ae nnn aa a aaa aa aaa aa arn eee Efficiency 13 00 lt a pas nendeta F aoee pae 252222 1 SIDIIIIIC evin 200Vae Pe o O A EE TEES S TE EA UST POATE T ee TPA EEE e Vin 480Vde 70 00 M 0 0 5 1 15 2 25 3 Output Power kW Fig 27 Efficiency curve PVI 3 0 OUTD power one ASO hanging
5. P Input 11 P inputi _ oOo PY Input 4 3 PY Input l PY Input 1 2 3 ase i T tie CLO AG PY Input 2 i Output PY Input 2 DCAC Inverter PY Input 2 PY put MPPT 2 PV 3 0 OUTD S 7 PVI 3 6 OUTD S PVL 4 2 OUTD S ae TP PP PP PP PP PB nn nt tn ttt tr rr teeter ewer rere se e e wee ee He ee Re ee ee ee a a ne a ae a ae ae a a ae a ae a ae a a a a a ae a ee en ae ee ne ae ae a ae a ae ar ee a ee ae ee es a MPPT 1 P Inputt PY Input 1 1 C PY Input 1 2 A p Py Input 1 1 i I PYInputt PY Input1 2 5 gt P Input 2 A Pe PVInput2 m T p DCIAC Inverter PY Input 2 PY Input 2 MPPT 2 PVE3 O OQUTD PVE3 6 OUTD Fig 1b Block diagram of inverters model without integrated DC switch Power one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 13 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 2 1 Key elements of a photovoltaic system STRINGS and ARRAYS The so called STRINGS technology has been developed in order to reduce the installation costs of a photovoltaic system as much as possible These costs are mainly related to the wiring operations on the inverter s DC side and the consequent distribution on the AC side A photovoltaic panel is composed of many photovoltaic cells assembled on the same mount A String is composed of a certain number of panels electrically connected in series An Array is composed of two or mo
6. POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 60 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 type Input voltage under threshold when off Wrong grid parameters DcDc fault detected by inverter Single instead of dual channel Internal temperature too high Bulk capacitor fault Inverter fault detected by DcDc Leakage current fault Leakage current fault DcDc relay fault Inverter relay fault Grid OF W006 Output Overfrequency Grid UF W007 Output Underfrequency POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 61 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ps Z Grid HI W008 Z grid out of range Impedance outside range Int Error II E024 Unknown Error Internal Error E025 Riso Low Log Only Low insulation resistance Log only Int Error E026 Vref Error Wrong reference voltage VRef Int Error II E027 Vgrid Measures Fault Grid voltage VGrid misreading Grid frequency FGrid misreading Int Error E029 Zgrid Measures Fault Grid impedance ZGrid misreading Int Error II E030 lleak Measures Fault Leak current ILeak misreading Voltage V misreading Current 1 misreading ae eee Fan Fail No disconnection Fan faulty Log Only a e Internal temperature a Ol Oe ee Remote power off a een Average output voltage outside range T Clock Battery Low No disconnection Clock battery low not operating O m R Clock faulty not o
7. analyzes the maximum power point MPPT of the photovoltaic field Ground insulation fault Aurora indicates that insulation resistance was found to be too low This may be due to an insulation fault in the connection between the photovoltaic field inputs and the ground WARNING Shock hazard Do not attempt to correct this fault yourself The instructions below have to be followed very carefully In case you are not experienced or skilled enough to work safely on the system contact a specialized technician What to do after an insulation defect has been found When the red LED turns on try to reset the fault indication by pressing the multi function ESC key at the side of the display If the Aurora reconnects to the grid the fault was due to a transient event such as condensation and moisture getting into the panels If this trouble occurs frequently have the system inspected by a specialized technician If Aurora does not reconnect to the grid open both the AC and DC disconnect switches to place the Aurora into a safe condition and contact an authorized service center to have the system repaired POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 59 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 If a grid failure event occurs while the system is in normal operation the yellow LED turns on steady G XX 5 Malfunction Fault indication YB Every time the Aurora inverter s check system d
8. have been made correctly v Carefully observe which LED is blinking and read the signal appearing on the display then following the instructions given in chapters 5 3 5 4 and 5 5 try to identify the type of fault found If the malfunction cannot be removed by following these instructions contact the service center or the installer see following page POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 90 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Before contacting the service center keep the following information handy INFO Aurora is NOTE Information to be found directly on LCD Aurora model Serial number Week of production LED flashing Light blinking or steady Signal displayed v V v V v V Malfunction short description Can malfunction be reproduced If so how Does malfunction appear cyclically If so how frequently Is malfunction present from installation If so has it worsened Description of the atmospheric conditions when the malfunction appeared LYNN NNN NA INFO on the Photovoltaic Field v Make and model of photovoltaic panels vV System structure array max voltage and current values number of strings for the array number of panels for each string POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 91 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 8 TECHNICAL FEATURES 8 1 Inpu
9. 2 1 s G STANDARD 208V 240V 3PH SPLIT PHASE EEE KEE EEEE WREE Ee Ee ee Ee o Table CN 01 AC Grid Connections TOP IMPORTANT If several Aurora inverters are installed in a tree phase AC GRID it is recommended to distribute the inverters between the phases in order to reduce the power unbalances between the phases Always refer to the local standards 3 3 7 Connection of RS485 and Alarm contact perform the AURORA ELECTRICAL DISCONNECT PROCEDURE WARNING Before performing the following instructions ALWAYS N described in section 3 3 1 of this manual Step 1 Remove the Switch Box front panel remove the 4 screws in pos B of Fig 10 Remove also the cover of the Aurora inverter Ref Fig 14 screw pos A in order to gain access to the terminal block board POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 43 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Step 2 Lay down the cables between the Aurora inverter and the outside passing trough the provided holes and cable glands on the Switch Box Step 2 Connect the communication and the alarm cables to the communication and alarm terminal block on the right side of the inverter Follow the marking on the terminal block for appropriate connection make sure to use the provided cable ties on the inverter and on the Switch WARNING In order to separate correctly power cable fro
10. 2 input terminals in the Switch Box rif IN1 e IN2 in fg 13 A Parallel input connection shall be equally distributed in such a way to limit to 16Adc for the PVI 4 2 model or 10Adc for the PVI 3 0 3 6 models the current for each terminal A WARNING When the inverter is configured with parallel input the current To parallel the 2 inputs 2 AWG10 cables should be used to connect the terminal block IN1 and IN2 and IN1 and IN2 as shown in Fig 13 1 black and 1 red cable Fig 13 Parallel Connection The switch S1 should be placed to position PAR as shown in Fig 14 in order to configure the inverter in parallel mode power on ASG hanging g ne of Power Installation and Operator s Manual Page 39 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 wer EOLO ZAL grt Zld 4 WOOdIXy F es Fig 14 Inverter Parallel Mode Configuration After switching the Aurora inverter to parallel mode configuration the front panel should be reinstalled apply 13 2 in lbs of torque to each of the 4 screws After the front panel is secured it is possible to begin the START UP procedure see section 4 power one f Changing the Shape of Power Installation and Operator s Manual Page 40 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 3 6 Connection to the AC GRID perform the AURORA ELECTRICAL DISCONNECT PROCEDURE WARNING Before performing the following in
11. Manufacturing Part Number 2 Model Number 3 Serial Number 4 Week Year of Manufacture power one ASO hanging the Shape of Power Installation and Operator s Manual Page 7 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 CONTENTS DORE WV OOK DD a goraepcoca encoun ces E OEE E EAE EAE 10 1 1 PHOTOVOLTAIC ENERGY ps case scenicstnstn cavern seus acyn arcane sannaactene ness anions 10 Zo EV UE LOO N ais cesses cose ce vente cnacaeenecacuestcescracshesesucueses 11 2 1 KEY ELEMENTS OF A PHOTOVOLTAIC SYSTEM STRINGS AND ARRAY ea vee ae cetnsenasiysais AT E AE EAA AAE 13 22 DATA TRANSMISSION AND CHECK ccccsessseeseeeeseeeeeeeeeceeceeeeeceeeeeeeeenees 15 22 AURORA TECHNICAL DESCRIPTION goceecctreptnn voce ei rn E E E 15 2 4 PROTE TI FOTY ES rss peste cs a E E E E E E ANAE E A 16 24d AVAIL S 10S se stsacseay ironii EEEE AE EAEI EEEE NEE TEE Ei 16 2 4 2 Panel Ground TQ ioe rssh estate nin memaotiastensn arma vtec 16 2 4 3 Additional Protective DOVICES cccccccccccccc ccs eeveeecececeeeeceanaeeeeeeeeeeeeeaannes 17 S INSTALLATION ooer EEE E ESEE ES 18 3 1 PACKAGE INSPECTION cerisier E E E E E T 18 3 1 1 Inspecting package contents eeeeessnnnnnnessssnrnnnessssesrrsressrssrrrrees 19 32 SELECTING THE INSTALLATION LOCATION ceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 19 3 3 BEFORE PERFORMING THE ELECTRICAL CONNECTIONS ccccceeseeeeeeeeees 24 3 3 1 Switch Box ELECTRICAL CONNECTING and or DISCONNECTING POC QTC sc
12. Power Installation and Operator s Manual Page 63 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 Shows instant output frequency value and within outside range status Ferid 50 17 Hz In range 6 If measured instant values of voltage step 4 and frequency step 5 are outside the allowed range the following screens are shown alternately Next connections screen 3 Verid screen 4 Fgrid screen 5 7 Instant value of insulation resistance 5 5 2 Error messages After the connection is established the inverter runs a test cycle if the wrong data is found the cycle is interrupted and an error code is displayed Please refer to the table in section 5 4 for error codes and their meanings Until the error is rectified the following screens are alternately displayed Once the error has been removed the inverter resets all functions in progress and re starts the connection Sect 5 5 1 Connection of the system to the grid item 2 Missing Grid Waiting Sun POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 64 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 3 First phase electric parameter check A FEW POINTERS ON DISPLAY KEY OPERATION During normal operation the display will cycle through available data The display changes to a different screen every 5 seconds or screens may be scrolled manually by pressing the UP 2nd key from display and DOWN keys 3rd key f
13. Shape of Power Installation and Operator s Manual PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 6 3 10 2 Fig 8a MP 01 Wall Bracket Page 23 of 108 Fig 8b MP 02 Wall Mounting NOTE It is recommended that you DO NOT expose the Aurora inverter to direct sun radiation or any other heat source including heat generated by other Aurora inverters see Fig 6 recommended installation When the ambient temperature rises above 50 C the inverter may self derate the output power e Always make sure that the airflow is not blocked in any installations power one ASG hanging the Shape of Power Installation and Operator s Manual Page 24 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ae gt PPP D gt Before Performing the Electrical Connections WARNING Before performing any operation on the Switch Box power input ALWAYS PERFORM the Switch Box ELECTRICAL DISCONNECTION PROCEDURE as explained in section 3 4 1 of this manual WARNING The electrical connections must be connected only after the Aurora inverter is firmly mounted to the wall WARNING The connection of the Aurora inverter to the electrical distribution grid must be performed by qualified and trained personnel and only after receiving authorization from the utility that operates the grid WARNING For a step by step description of the correct procedure please r
14. circuit state and it avoids any current propagation form output to input terminals Abnormal Fault tests conducted during UL1741 qualification show also that these type of faults produce the opening of internal grid disconnect relays and cause the external AC CB protection devices to trip preventing any power flow from the grid In conclusion for PVI 4 2 3 6 3 0 OUTD x US y models it is not possible to have any single fault responsible of Input source back feed current flow For these models the Back feed current into DC Source is negligible POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 99 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 8 6 Voltage and frequency limits The UL1741 requires for voltage and frequency the following limits for utility interaction alts AT Voltage V Frequency Hz sec at 60 Hz before cessation Her of current to the simulated utility 0 50V Rated 60 Hz 0 50 Vnor lt V lt Rated 60 Hz 0 88 Vior 1 10 Vaor lt V lt Rated 60 Hz l 1 20Vnor Df 120Vw lt V_ Rated 60 Hz When a utility frequency other than 60 Hz is used for the test the maximum number of cycles it takes to cease to export power to the simulated utility shall not exceed the number of cycles a utility frequency of 60 Hz takes regardless of the time the inverter takes to cease to export power to the simulated utility V is the nominal output voltage rat
15. one or more inverters are added later to the system please remember to switch the DIP switch of the former last inverter of the system back to the OFF position a POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 87 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 6 2 Serial connection with USB port Serial connection through use of the inverter s USB port allows connection of a single inverter to a personal computer equipped with a USB 2 0 interface and dedicated software supplied by Power One The PC inverter connection cable is a standard USB 2 0 cable 5 meters long with terminals of the A and B type Just remove the waterproof plug located on Aurora s side to make the connection see Fig 26 Fig 26 USB Connection 6 3 Alarm contact connection Three connections are provided to drive an external alarm a common contact a normally open contact and a normally closed contact To cable alarm contact use a three wire or two wire cable The cables are routed through the hole located on the bottom of the Switch box which is blanked with waterproof plugs see Fig 23 23a Refer to 3 3 7 for correct cabling procedure power one ASG hanging the Shape of Power Installation and Operator s Manual PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 6 4 Measurement Accuracy ics Every measure should consider possible errors gt measurement units gt capacity gt resolution Input vo
16. or other non function related faults meaning such faults that do not affect the inverter s ability to generate energy are shown in the bottom line of the display in place of date and time The following error messages are provided CLOCK FAIL indicates clock malfunction contact service BATTERY LOW SET TIME appears the first time the unit 1s powered up or after the battery has been replaced FAN FAIL contact service MEMORY FAIL Data logging malfunction Contact service 13A 5 5 4 Main menu When the grid connection sequence described in section 5 5 3 and all electrical parameter checks are completed other screens become available These screens let you monitor inverter operation Pressing the ESC key right next to display gives access to 3 new screens A FEW POINTERS ON DISPLAY KEY OPERATION Press the UP 2nd key from display and DOWN keys 3rd key from display to scroll through items Press the ESC key right next to display to go back to the previous menu Press ENTER 4th key from display to open the selected submenu POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 68 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 5 Statistics Select the Statistics menu to display the following submenu Lifetime Partial Today Last 7 days Last Month Last 30 Days Last 365 Days User period 5 5 6 Information The display has 2 lines use the keys
17. power supply and safety regulations The Aurora inverter operating system communicates with the related parts to proceed to data processing This process ensures optimal performance levels of the whole units as well as a high efficiency under all solar radiation and load conditions while always in full compliance with the applicable directives standards and regulations 2 4 Protective Devices 2 4 1 Anti Islanding When the local power distribution grid fails due to a fault or when the equipment is shut down for maintenance operations the Aurora inverter should be physically disconnected under safety conditions so as to protect any personnel working on the erid in full compliance with the applicable prevailing national standards and regulations To avoid any possible islanding operation the Aurora inverter 1s provided with an automatic disconnection protective system called Anti Islanding The AURORA PVI 3 0 3 6 4 2 OUTD US model is equipped with a state of the art anti islanding protection system certified to the following standards and regulations e CSA C22 2 N 107 1 01 UL Std N 1741 2 4 2 Panel Ground Fault The Aurora PVI 3 0 3 6 4 2 versions have been designed for use with panels with a floating connection positive and negative terminals not connected to ground A sophisticated ground protection circuit continually monitors the ground connection when it detects a ground fault this circuit shuts down the inverter and turns on a
18. red LED on the front panel to indicate a ground fault condition The Aurora inverter is equipped with a terminal for the system grounding conductor see section 3 3 6 steps 3 and 4 for more details RSP NOTE For more details of Aurora inverter shutdown or possible causes of malfunction please refer to sections 5 3 and 5 4 POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 17 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 2 4 3 Additional Protective Devices The Aurora inverter 1s equipped with additional protections to guarantee safe operation under any circumstances The protections include e constant monitoring of grid voltage to ensure that voltage and frequency remain within the specified operational limits in accordance with UL 1741 standard For more detail see paragraph 8 6 e automatic power limitation control based on internal temperature monitoring to avoid overheating heat sink temperature lt 70 C 158 F Many control devices are fitted to Aurora making its structure redundant but at the same time ensuring a perfect and fully safe operation POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 18 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 INSTALLATION performed in accordance with the electrical standards prescribed by the local WARNING The electrical installation of the Aurora inverter must be regulations and b
19. s Manual Page 84 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 6 1 2 RJ12 connectors As an alternative to RS485 serial connection whether using single units or a daisy chain inverter connection can be performed by means of RJ12 connectors see Fig 24 Wiring is again routed through the holes located at the bottom of the Inverter which are blanked with waterproof plugs see Fig 23 Input wiring passes through one hole and is to be assembled to one of the RJ12 connectors it does not matter whether it is no 1 or no 2 since signals are the same considering that they are connected in parallel Output wiring goes out from the other RJ12 connector through the other hole and extends to the next unit RJ12 connectors Description Not Used Data Line Remote OFF Required or Remote OFF control see section 5 5 7 11 for details POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 85 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 6 1 3 Daisy chain The RS 485 terminal block or RJ12 connectors can be used to connect a single Aurora inverter or multiple Aurora inverters connected in a daisy chain The maximum number of inverters that can be connected in a daisy chain 1s 248 The recommended maximum length of this chain is 1200 meters In a case where multiple inverters are connected in a daisy chain it is necessary to assign an address to each unit Refer to paragraph 5 5 7 1 for mstructi
20. the Shape of Power Page 97 of 108 Installation and Operator s Manual 2 1 PVI 3 0 3 6 4 2 OUTD x US Rev iciency PVI 3 6 OUTD Eff 100 00 95 00 74 4 85 00 Aouad 215Vde oes jn aa bt Tica OE SR ET A NS n MaMe ETAN ASO Sa EL EEIE EE EET AANA DA MAAN E IS aE ES PERRET LEET ST SIRT S EA A ana OAA 4 oo 70 00 Output Power kW Fig 28 Efficiency curve PVI 3 6 OUTD iciency PVI 4 2 OUTD Eff 100 00 95 00 85 00 Aduana Output Power kW Fig 29 Efficiency curve PVI 4 2 OUTD VSO hanging the Shape of Power POWET One Installation and Operator s Manual Page 98 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 8 5 Input Source Backfeed Current PVI 4 2 3 6 3 0 OUTD x US Grid Tied Inverters are provided with two separate and consecutive power stages e Booster Stage DC DC converter connected to DC Input Terminals e Inverter Stage DC AC converter connected to AC Output Grid Terminals The Booster Stage is provided with forward diodes that allows the current power flow only from DC Input terminals towards Inverter Output Stage In case of any fault on Inverter Stage these diodes avoid any back feed current phenomena towards input terminals In case of fault of the forward diode the corresponding booster MOSfet goes immediately and permanently in short
21. 0 and connect the signal cable optional Pass the cable inside the Switch Box through the input knockouts see pos D fig 11 SB 01 DC Switch Box Layout and then inside the inverter through the cable gland placed in the upper side of the Switch Box finally screw the cable to the appropriate terminal block inside the inverter Step 5 Remove the cover from the photovoltaic panel or wait for the sun to irradiate the panel WARNING Verify that the DC voltage in the Switch Box input terminal block pos F Fig 11 SB 02 has the correct polarity and is within the operational range POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 35 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 If the parameters are within the operating range defined in the specification close and secure the inverter and the Switch Box covers and follow the instructions in section 4 START UP 3 3 5 Possible Aurora DC Input Configuration input ALWAYS perform the Switch Box CONNECTION and or DISCONNECTION PROCEDURE as explained in section 3 3 1 of this manual WARNING Before performing any operation on the Switch Box power WARNING Before performing the following instructions ALWAYS perform the AURORA ELECTRICAL DISCONNECT PROCEDURE in section 3 4 1 of this manual The Aurora inverter can be configured with an independent MPPT for each DC input channel or with the 2 input DC channel connected
22. 14pages and Attachment 3 Model PVI 3 0 OUTD S US 14 pages Issued by Rob Hempstock AScT THIS LETTER OF ATTESTATION DOES NOT AUTHORIZE THE USE OF THE CSA MARK ON THE SUBJECT PRODUCTS QUOTATIONS FROM THE TEST REPORT OR THE USE OF THE NAME OF THE CANADIAN STANDARDS ASSOCIATION AND CSA INTERNATIONAL OR ITS REGISTERED TRADEMARK IN ANY WAY I5 NOT PERMITIED WITHOUT PRIOR WRITTEN CONSENT OF THE CANADIAN STANDARDS ASSOCIATION OR CSA INTERNATIONAL superiorsolar hot water solar power pool heating Unit 2 10 Enterprise Close West Gosford 2250 DQD 507 06 Rev 2006 02 23 Page 2 of 2 tel 4323 9050 fA Power one S Changing the Shape of Power
23. 3500 W 3120 W 360 Vdc 600 Vdc from 90 Vdc to 580 Vdc from 200 Vdc to 530 Vdc 12 5 Adc 10 Adc Negligible 2000 W Value PVI 3 6 OUTD 4150 W 3750 W 360 Vdc 600 Vdc from 90 Vdc to 580 Vdc from 200 Vdc to 530 Vdc Verid 277 Vac or 240 Vac from 220 Vdc to 530 Vdc Verid 208 Vac 20 Adc 16 Adc Negligible 3000 W Page 93 of 108 Value PVI 4 2 OUTD 4820 W 4380 W 360 Vdc 600 Vdc from 90 Vdc to 580 Vdc from 200 Vdc to 530 Vdc Verid 277 Vac or 240 Vac from 220 Vdc to 530 Vdc Verid 208 Vac 20 Adc 16 Adc Negligible 3000 W Ground fault detector and interruption provided POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 94 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Two independent MPPT channels with shared negative poles or Two channels in parallel Input channels configuration 1 The total input power shall not exceed the max Recommended DC power RS NOTE If the input current supplied by the photovoltaic field connected to the inverter is above the max value and the input voltage is within the allowed range the inverter will not be damaged 8 2 Output values Desea mtoi Value Value Value p PVI 3 0 OUTD PVI 3 6 OUTD PVI 4 2 OUTD AORN OuIUL 3000 W 3600 W 4200 W power Grid voltage 183 to 304 Vac 183 to 304 Vac 183 to 304 Vac maximum range 277V single phase 277V single phase ort See o i pha
24. 8 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 2 Available Data The Aurora inverter provides two types of data that can be collected using the Aurora Communicator interface software 5 2 1 Real time operational data Real time operational data can be transmitted on demand through the communication lines and are not stored by the inverter The Aurora Communicator software available on the installation CD may be used to transmit data to a PC Please check for the latest updated version at www power one com The following data is available e Grid voltage e Grid current e Grid frequency e Power transferred to the grid e Voltage of photovoltaic array 1 e Current of photovoltaic array 1 e Voltage of photovoltaic array 2 e Current of photovoltaic array 2 e Heat sink temperature e Serial number Part number e Manufacturing week e Firmware revision code e Daily energy e Leakage current of the system e Total energy e Partial energy e Mean grid voltage e Insulation resistance e Leakage current to ground e Date time POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 55 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 2 2 Internally logged data Aurora stores internally the following data e Lifetime counter of grid connection time e Lifetime counter of energy transferred to the grid e Energy transferred to the grid every 10 seconds for the last 8640 periods of 10 seconds whic
25. ASUREMENT ACCURACY ccscececcccccccecccecececcsececececeeecscecccecseececucececacacs 88 7 TROUBLESHOOTING 2 cccccccccccccccccccccccccccccccccces 89 8 TECHNICAL FEATURES cccccccccccccccccccccccccccccces 91 8 1 INPUT VALUES cnsacasesssescienaeansenaasagumamonnaacsnpndaiesanie eieistacatsewseausuuesesmadaunesareoanets 91 8 2 OUTPUT VALUES 2 00 ccc ccccccccecccccecccecccccccceccnccececeasacueaensueasusueusceueueceuscececeees 94 8 3 GRID PROTECTION CHARACTERISTICS cscecececsccccccccaccceccccececececececececes 95 8 4 GENERAL CHARACTERISTICS ccccecececscecccccecccscceeescceecsccesusseneseceuseececeees 95 8 5 BACKFEED CURRENT cccccccecececescccccecceccccecececececcecscecececeseecscesucesusesencess 98 8 6 VOLTAGE AND FREQUENCY LIMITS ccccsccsccsscecceccsccsccsccsccsscsessenseuseusees 99 8 7 FAULT CURRENT ccccecececcccccceececccccececececececececeeecseececscesscsesssesetencnceeass 100 8 8 POWER DERATIING ccccccececcceccccceccecccccecccecsceuecenesscecesscsueceeceececeseueueess 101 Powe r one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 10 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 1 FOREWORD This document contains a technical description of the Aurora Photovoltaic Inverter which provides the installer and user with the information required for its installation operation and use 11 PHOTOVOLTA
26. DC side and to the grid on the AC side Each Aurora inverter will work independent of the others and will push the maximum power available from its own section of the photovoltaic panels to the grid There are several factors and considerations to be taken into account when designing photovoltaic systems such as the type of panels available space location long term target output etc The system configurator available on Power One s web site at WWw power one com may help in sizing a photovoltaic system PV Array Circuit breaker or fused load breaking AC disconnect Load breaking DC disconnects PV Array 2 Fig 3 Simplified Diagram of a Photovoltaic System PowEer one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 15 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 2 2 Data Transmission and Check When more than one inverter is used remote monitoring can be implemented through a sophisticated communication system based on an RS 485 serial interface with a USB port to facilitate access during installation An optional Aurora Easy Control system is also available for remote monitoring via the Internet analog modem or GSM digital modem 2 3 Aurora Technical Description Figure 4 shows a block diagram of the Aurora inverter The main elements are the input DC DC converters termed boosters and the output inverter Both the DC DC converters and the output inverter operate at a
27. ELECTRICAL CONNECTION e Always comply with all prevailing national accident prevention regulations e Electrical connections such as conductor sections fuses PE connection etc must always be made in accordance with applicable regulations OPERATION Systems with inverters should be provided with additional control and protective devices in compliance with the corresponding prevailing safety rules such as those relating to the compliance with technical equipment accident prevention regulations etc e Comply with all corresponding marks and symbols present on each device e Ensure that all covers and doors are closed during operation e Any calibration changes should be made using the operational software e Anytime that the inverter has been disconnected from the power grid powered parts and electrical connections should not be touched as some capacitors could still be charged MAINTENANCE AND SERVICE Contact Power One Customer Service for maintenance and service needs SAVE ALL DOCUMENTS IN A SAFE PLACE POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 6 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 gt This document applies only to the PVI 3 0 OUTD US PVI 3 6 OUTD US PVI 4 2 OUTD US PVI 3 0 OUTD S US PVI 3 6 OUTD S US PVI 4 2 OUTD S US inverters Fig 1 Name Plate for PVI 4 2 OUTD US The name plate affixed to the inverter provides the following information 1
28. GND field wiring terminals DC field wiring oo 1 69 terminals Grounding Electrode cae p48 TS Models PVI 3 0 OUTD US AWG Se min max AC and GND field a 1 69 ee A DC field wiring E S E e terminals Grounding Electrode PoOwWer ole LU hanging the Shape of Power Installation and Operator s Manual Page 34 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 3 4 AURORA Inverter Typical Electrical Installations WARNING Before performing any operation on the Switch Box power input ALWAYS perform the Switch Box CONNECTION and or DISCONNECTION PROCEDURE as explained in section 3 3 1 of this manual WARNING THE INPUT CURRENT shall not exceed 16Adc for each input channel PVI 4 2 or 10Adc PVI3 0 3 6 WARNING Before performing the procedures described below ALWAYS perform the ELECTRICAL DISCONNECT PROCEDURE as described in section 3 4 1 of this manual gt gt Step 1 Disconnect from the AC Grid by turning Off the AC Bipolar Switch Part D in Fig 9 Electrical Connection Diagram Step 2 Remove the Switch Box cover and connect the DC cable to the terminal block at pos F in Fig 11 SB 02 Switch Box carefully check the correct polarity of the DC cable Step 3 Connect the AC cable by following the instructions in section 3 3 6 Electrical Connection to the AC Grid Refer to Table CN 01 AC Grid Connection Step 4 Open the inverter cover 4 screws in pos b of fig 1
29. IC ENERGY Industrialized countries greater energy consumers have been experimenting with energy saving methods and the reduction of pollutant levels for many years thanks to the energy conversion process This may be possible through a shrewd and rational consumption of well known resources and also by looking for new forms of clean and non exhaustible energy Regenerating sources of energy are fundamental to solve this problem Under these circumstances solar energy exploitation to generate electrical photovoltaic energy 1s becoming more and more important worldwide Photovoltaic energy in any case is of great advantage to the environment because the radiated energy we receive from the sun is transformed directly into electrical energy without any combustion process and without producing any pollution POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 11 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 2 SYSTEM DESCRIPTION The Aurora inverter feeds a power grid by using the power generated from photovoltaic panels The photovoltaic panels transform sun radiated energy into electrical energy in the form of direct current DC through a photovoltaic field also known as a PV generator In order to utilize this energy and feed it to the distribution grid the energy needs to be converted into alternating current AC The Aurora inverter does this conversion also known as DC to AC inversion ver
30. Language It 1s possible to set the national language or English English Italiano 5 5 7 8 Start up Voltage Start up voltage can be set according to the available photovoltaic system Voltage range can be 120V to 350V Default setting for Aurora is 200V This parameter can be changed by means of the display keys VStart 200V 5 5 7 9 Autotest This is the Aurora inverter s internal test for checking correct operation of the protection and the grid interface device as provided for by UL 1741 regulation Autotest Press ENTER to access all information of this section UV test OF test UF test DC injection OV Max voltage UV Min voltage OF Max Frequency UF Min Frequency DC injection Output current direct component This component shall not be gt 0 5 with respect to inverter maximum rated current or the unit will switch off POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 76 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 The display has 2 lines use the keys at the side of the display to scroll through items or open the corresponding submenus An arrow on left side of the display highlihghts your current selection When the chosen item is selected press ENTER to open the submenu As soon as test is selected the display shows During the test the display gives test progress indication If the test passes depending on selected item the display shows
31. P Appendix 3 Section B Inverters MWaximum Continuous Power Conversion Efficiency Tare Losses Motes l Models PVI 4 2 0OUTD 5 U PVI 3 6 0UTD 5 US and PVI 3 0 0UTD 5 US were tested as being representative of the series Each model is available in 208V ac 240W ac and 277V ac outputs and each output voltage was tested Models PVI 4 2 OUTD 5 US FVI 3 6 0UTD 5 U5 and PVI 3 0 OUTD 5 US are identical to models PYT 4 2 OU0TD US PVI 3 6 OUTD US and PVI 3 0 OUTD US except for an integrated switch box 3 Inverter Models PVI 4 2 OUTD US W PVI 3 6 OU0TD US W and PVI 3 0 OUTD US W are intended for operation with Regulated Wind Generated supplies only these inverters are intended to receive an input supply from a wind generator interface module which converts AC voltage from a wind generator into a DC voltage bh DOD 307 05 Rev 2005 02 25 Page l of 2 fN Power one AJ G hanging the Shape of Power Installation and Operator s Manual Page 108 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 CSA INTERNATIONAL m M M Certificate 1096477 Master Contract 173688 Project 2096477 Date March 6 2009 4 Inverter Models PVI 4 2 OUTD US W PV1 3 6 OUTD US W and PVI 3 0 OUTD US W are identical in construction to models PVI 4 2 OUTD US PVI 3 6 OUTD US and PVI 3 0 OUTD US 5 For summary of test results refer to Attachment 1 Model PVI 4 2 OU0TD S US 14 pages Attachment 2 Model PVI 3 6 OUTD S US
32. S 485 serial port uses a three wire cable two wires are for signals and the third one is for a ground connection The cables are routed through the hole located on the bottom of the Switch box which is blanked with waterproof plugs see Fig 23 23a Supplied cable gland must be installed in the hole selected for use RS485 Alarm Fig 23 Hole for cables necessary for RS 485 port connection or wiring for RJ12 connectors connection AN POWET ONE SA Changing the Shape of Power Installation and Operator s Manual Page 82 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 23a Holes for cables necessary for RS 485 port connection or wiring for RJ12 connector connection without the switch box After passing through cable gland cables are connected inside of the unit to RS 485 terminal blocks that can be reached by removing the front cover Refer to paragraph 3 3 2 for details on correct front cover removal and reassembly procedure Refer to paragraph 3 3 7 for details on correct cabling gt Signal wires must be connected to T R and T R terminals gt Ground wire must be connected to RTN terminal power one ASO hanging the Shape of Power Installation and Operator s Manual Page 83 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 RJ12 No 1 RJ12 No 2 Fig 24 Terminals for connection to RS 485 serial line and S2 switch AN POWET One VSO hanging the Shape of Power Installation and Operator
33. WARNING The Aurora inverter operates at high voltages that can be WARNING Always open the AC disconnect switch to disconnect the Aurora inverter from the Grid before opening the DC disconnect switch STEP 1 Disconnect the inverter from the AC Grid using the AC disconnect switch shown as Part D in Fig 9 Connection Diagram STEP 2 Wait about 5 minutes to allow the internal capacitors to discharge verify that the LEDs on the front panel are OFF STEP 3 Disconnect the High Voltage DC power line coming from the photovoltaic arrays using the appropriate switch switch C of the Switch Box shown in Fig 11 SB 01 DC Switch Box Layout Turn the switch to the OFF position as shown on the silk print shown in Fig 11 SB 01 and LOCK as shown in Fig SB 02 DC Switch Box Safety Lock This step completes the electrical disconnection of the inverter from the DC Switch Box POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 47 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig SB 02 DC Switch Box Safety Lock After the ELECTRICAL DISCONNECTION OF THE INVERTER FROM THE SWITCH BOX PROCEDURE has been completed remove the 2 front panels from the AURORA inverter as shown in section 3 3 2 Access to the Internal Terminal Block Disconnect the DC cable from the inverter board remove the 4 screws from the terminal block and IN1 and and IN2 Fig 13 P
34. age found 4 yellow C faulty red E green X Defect fault The fault can be inside or 5 yellow pa outside the inverter See the red X alarm appearing on the LCD green X Installation phase Aurora During installation it refers to yellow d is disconnected from set up of the address for RS 6 ae red x grid 485 communication green Xx Grid disconnection Indicates a missing grid 7 yellow es condition red X PoOwWer ole LU hanging the Shape of Power Installation and Operator s Manual Page 58 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 JKA AKO AKO tS KAE Oe RR JA NOTE Inverter status is indicated by the corresponding LED turning to a steady on condition or flashing and by a display message that provides a description of the existing operation or fault condition see the following sections 1 2 3 4 Nighttime mode Aurora disconnected during nighttime this occurs when input power is too low to feed the inverter Aurora initialization and grid check Initialization is in progress input power sufficient to feed the inverter Aurora is verifying start up conditions for instance input voltage value insulation resistance value etc and a grid check routine is launched Aurora is feeding the grid After completing a set of electronics and safety auto test routines the inverter starts the grid connection process As mentioned above during this stage Aurora automatically tracks and
35. arallel Connection Disconnect the 3 AC cables 1 2 and 3 from the inverter pos A B and C in Fig 15 Place the DC cable inside the Switch Box close the hole in the upper side of Switch Box using the following water tight caps Quantity Size Alternative 2 Gi M32 2 G1 2 PG16 M20 Close the Switch Box cover using the 4 screws power one ASG hanging the Shape of Power Installation and Operator s Manual Page 48 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 5 CR2032 Lithium Battery Replacement WARNING Before performing the following instructions ALWAYS perform the AURORA ELECTRICAL DISCONNECT PROCEDURE described in section 3 4 1 of this manual Inside the Aurora inverter there is a CR2032 lithium battery When this battery is at end of life a message will be shown in the display informing that the battery needs to be replaced The battery is visible after removing the Aurora inverter s front panel Refer to section 3 3 2 for the procedures to remove the front panel To insert the new battery into the battery holder the battery needs to be slid at a 30 angle as shown in Fig 16 and when pushed in on insertion it should seat into the correct position within the holder ae Sy papi RAE GGA ULL a reggie fili y SATEN Tox T TEETE FEREN EE Fig 16 Lithium Battery Replacement WARNING The replacement of this battery should be performed only by
36. at the side of the display to scroll through items or open the corresponding submenus as described in section 5 5 3 An arrow on the left side of the display highlights your current selection as shown in the following figure Partial 5 5 6 1 Lifetime Select Lifetime to view the following information Time Lifetime operation time E tot Lifetime energy output Val Money earned CO2 CO2 saving compared to fossil fuels power one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 69 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 6 2 Partial Select Partial to view the following information Time Total operation time since counter was last reset E par Total energy output since counter was last reset PPeak Maximum peak power measured since Partial counter was activated Val Money earned since counter was last reset CO2 CO2 saving compared to fossil fuels since counter was last reset Hold the ENTER key 4th key from display depressed for over 3 seconds to reset all counters in this submenu After 3 seconds a warning sound is repeated 3 times 5 5 6 3 Today Select Today to view the following information E tod Total energy output during the day Ppeak Peak power achieved during the day Val Money earned during the day CO2 CO2 saving compared to fossil fuels during the day 5 5 6 4 Last 7 days Select Last 7 days to view the following information E 7d Total
37. ave to remove the inverter from its mounting surface The following figure shows the recommended minimum clearances around the inverter POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 20 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 5 Installation Location Minimum Clearances around the Aurora Inverter POowWEer one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 21 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 RECOMMENDED ARRANGEMENT Fig 6 Recommended Installation of Aurora Inverters NOTE Tilted mounting is permitted see Fig 7 but will reduce heat dissipation and may result in self derating A WARNING The inverter surface may become hot to the touch during operation To avoid burn injury DO NOT touch the inverter surface during operation NO Derating F Tp O Fig 7 Tilted Mounting PoWEr One VAS G hanging the Shape of Power Installation and Operator s Manual Page 22 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 The Aurora inverter should be mounted vertically as shown in figures 5 6 7 8a and 8b Always follow the relative mounting instructions provided in this section Included in the shipping package is a mounting kit with 4 screws and 4 wall plugs provided for mounting the metal bracket to a concrete wall The screws should be mounted in the 4 holes present
38. cally the moment when solar radiation becomes strong enough This 1s indicated by the LEDs The Aurora inverter provides operational data in the following ways e LED indicators e Operational data on the LCD display e Data transmission on a dedicated serial RS 485 line Data can be collected by a PC or a data logger equipped with an RS 485 port If an RS 485 line is used it may be convenient to use the Aurora RS 485 RS232 Serial Interface Converter model number PVI RS232485 An optional Aurora Easy Control data logger is also available e Data transmission via USB cable This type of connection is typically used when monitoring a single inverter and for maintenance purposes To connect the USB cable remove the waterproof plug at the bottom end of the inverter right wall see Fig 17 POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 52 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 17 USB Port S Changing the Shape of Power Installation and Operator s Manual Page 53 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 AURORA Analog inputs Digital Input Output sift Additional units RS485 Aurora Easy Control adapter RS232 Ethernet Telephone or GSM modem End User s computer Fig 18 Data Transmission Options AN POWET ONE VSO hanging the Shape of Power Installation and Operator s Manual Page 54 of 10
39. cccccccccccceceesesesesececeeceseaaeeesseseeees 74 TS E e E E E E EE EE 74 DD RMS esac rea E E E EEES 74 Iddl AA OW ACC eera E e EEE 75 5 5 7 8 Start up Voltage eecccccccsssseccceeceeesecceeeseeeeceees 75 Deel AOO e EE E E E E E 75 5 5 7 10 POVAU A eae cn cuastoveaccine aenicectingsepenesacnnermteanensinoorieateaanties 76 5 5 7 11 Remote Control permetia eia 11 5 5 7 12 UV Prot time eeccccccssscccceesecceeeeeeeeeeaaeees 78 5 5 7 13 MPPT scan 000 eee eececeecccceeeeececceeeeeeeeeaeeseeceaeeeeeeeeees 78 POWEr One VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 9 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 7 14 Scan Interval ccccccccccccceccccccecccecscecscseccecececeeues 78 e MY E eee ee AEE E T eee ee ee ere nee ener 79 6 DATA CHECK AND COMMUNICATION cccscvees 1 6 1 CONNECTION THROUGH RS 485 SERIAL PORT OR RJ 12 CONNECTORS 8 6 1 1 RS 485 serial DOME accercasreve cists otsgens tencenttansaiemincaancctatecnesSsschestare sessed ieaenqiee 81 6 1 2 RITZ CONNEC COV S ooc ccc cccccccccccccccuccccucucuccccucucuceceucucuseucucuceseucusuceseucuenenneaenens 84 6 1 3 Daisy chain ooooeneennnnesssnssssrrsesssrrrsesssrrerssssrrrressssrrressrrrresserrrees gt 8 amp 5 6 2 SERIAL CONNECTION WITH USB PORT ececcececececccccecececceccscececeeees 87 6 3 ALARM CONTACT CONNECTION ccsccccccccccecececececececececscsececescccecncecesacess 87 6 4 ME
40. d signals wiring from the inverter to the AC Grid and to the photovoltaic panel are connected through the Switch Box as described in Fig 11 SB 01 DC Switch Box Layout using the access windows in pos A for the power cables and the windows in pos D for the signal cables PowWEer one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 28 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 3 2 Removing the Front Cover and Accessing the Internal Terminal Block WARNING Before performing the following instructions ALWAYS perform the ELECTRICAL DISCONNECTION OF THE INVERTER FROM THE SWITCH BOX PROCEDURE located and described in section 3 4 1 To remove the front cover loosen the 4 screws shown in fig 10 pos A using the flathead screwdriver provided in the box with the inverter Fig 10 Aurora Inverter with Front Panel and DC Switch When the connection operations are completed reinstall the front cover and tighten the 4 screws into the cover with at least 1 5Nm 13 2 in lbs torque to ensure proper waterproof sealing PowWEr One VSO hanging the Shape of Power Installation and Operator s Manual Page 29 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 3 3 Aurora Switch Box Description ON i i OFF o Fig 11 SB 01 DC Switch Box Layout Pos Fig SB 01 Description A DC and AC Power cable knockouts SIZE G1 B Silkscreen ON
41. e next from left to right gt Use ESC to go back to the previous field from right to left gt Press ESC repeatedly to go back to the previous menus as described in section 5 5 3 To set days gt Press DOWN to scroll numbers backwards from 31 to 1 gt Press UP to scroll numbers from 1 to 31 To set the month gt Press DOWN to scroll months from December to January gt Press UP to scroll months from January to December If set dates are inconsistent the display alerts the user to the problem POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 72 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 7 Settings Select Settings from the Main menu section 5 5 4 to display the first screen that refers to the password Password P See ale Default password is 0000 It can be changed using the keys on display Use ENTER to move from one figure to the next from left to right Use ESC to go back to the previous figure from right to left Press ESC repeatedly to go back to the previous menus as described in section 5 5 3 Press DOWN to scroll numbers backwards from 9 to 0 Press UP to scroll numbers from 0 to 9 VV VVWV Type in the correct password and press ENTER to access all information of this section gt Address Display Set Service New Password Cash Time Language Vstart Autotest Alarm Remote Control UV Prot time MPPT scan EN DIS Scan Period The dis
42. ead and closely follow the instructions provided in this section and its subsections and all safety warnings Not complying with the instructions that follow can lead to hazards and possible injury to personnel and or equipment damage WARNING All field wiring connected to signal circuits WIND ALARM REM amp RS485 must be UL CSA certified rated 600 V or higher and must be additionally protected by means of a non metallic conduit Take care to provide means for securing all the above mentioned wiring away from both AC side and DC side field wiring Moreover AC side field wiring should be secured away from DC side field wiring WARNING Always respect the nominal ratings of voltage and current defined in section 8 Technical Features when designing your system Please observe these considerations in designing the photovoltaic system gt Maximum array DC voltage input to each MPPT circuit 600 Vdc under any condition gt Maximum array DC current input to each MPPT circuit 16Adc under any condition for PVI 4 2 model 10Adc under any condition for PVI 3 0 3 6 models WARNING The electrical installation of the Aurora inverter must be performed in accordance with the electrical standards prescribed by the local regulations and by the National Electric Code ANSI NFPA 70 standard POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 25 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 O
43. efore calculating the maximum voltage of the photovoltaic array POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Minimum Panel Temp C 20 15 10 Page 92 of 108 36 Cells Panels 48 Cells Panels 72 Cells Panels Panel voltage 21 6 22 0 22 4 22 8 23 3 23 7 24 1 24 5 24 9 25 3 25 7 Max number of panels N NJ 27 26 26 25 25 24 24 24 23 23 Q Q oN oN S gt gt L 8 a an am 28 8 20 29 4 20 29 9 20 30 5 19 31 0 19 31 6 19 32 1 18 32 7 18 33 2 18 33 8 17 34 3 17 Table A POWEl one VJ 6 hanging the Shape of Power Max number of panels 43 2 44 0 44 9 45 7 46 5 47 3 48 2 49 0 49 8 50 7 51 5 Panel voltage 13 13 13 12 12 12 12 12 11 11 Installation and Operator s Manual PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Description Max reccomended DC power input Nominal DC power input Nominal input voltage Max absolute input voltage Input voltage MPPT operating range Input voltage MPPT operating range at full power Max short circuit current of each array Max operating input current of each array Input backfeed current Max input power of each channel PV Ground fault protection Value PVI 3 0 OUTD
44. el Cover the photovoltaic panels with dark opaque sheets before they are connected This helps prevent any hazardous high voltages from appearing at the connecting cable terminations GENERAL During inverter operation parts may be powered may lose proper insulation and may move In addition some surfaces may become hot Unauthorized removal of necessary protections improper use poor or incorrect installation or improper operation may lead to serious injury to people and or equipment damage Transportation handling installation startup and maintenance must be performed by qualified and trained personnel all accident prevention rules in force in the user s country must be observed Basic safety rules require using qualified and trained personnel that have the skills for assembly startup and operation of the product to perform such activities POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 5 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ASSEMBLY e Devices should be assembled and cooled according to the specifications mentioned in their corresponding documents e In particular during transport and handling parts should not be bent and or the insulation distances should not be changed There should be no contact between electronic parts and connection terminals e Electrical parts must not be mechanically damaged or destroyed this could cause potential health risks
45. energy output during the last 7 days Val Money earned during the last 7 days CO2 CO2 saving compared to fossil fuels during the last 7 days POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 70 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 6 5 Last Month Select Last Month to view the following information E mon Total energy output during the month Val Money earned during the month CO2 CO2 saving compared to fossil fuels during the month 5 5 6 6 Last 30 Days Select Last 30 Days to view the following information E 30d Total energy output during the last 30 days Val Money earned during the last 30 days CO2 CO2 saving compared to fossil fuels during the last 30 days 5 5 6 7 Last 365 Days Select Last 365 Days to view the following information E 365d Total energy output during the last 365 days Val Money earned during the last 365 days CO2 CO2 saving compared to fossil fuels during the last 365 days This feature measures energy saving during a period selected by the user Press ENTER from the User period screen to access the following submenu 5 5 6 8 User period POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 71 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Start 23 June End 28 August Use the display keys to set the start and end date of the period as follows gt Use ENTER to move from one field to th
46. er of Attestation Document 2096477 Master Contract 173688 Project 2096477 Date Issued March 6 2009 Issued to Power One Italy S p A Via San Giorgio 642 Terranuova Bracciolini Arezzo 520258 Italy Attention Mr Gianfranco lannuzzi CSA International hereby confirms that it has completed an evalnation of Utility Interactive Inverters Models PVI 4 2 OLTD US PVI 3 6 OUTD US PVI 3 0 OUTD US PYV1 4 2 OUTD S US PVI 3 6 OUTD 83 US PVI 3 0 OUTD 8 US PY T 4 2 OUTD US W PVI 3 6 OUTD US W and PVTI 3 0 OLTD US W CSA International hereby attests that the products identified above and described in CSA report 2096477 complies with the following standards tests to the extent applicable The testing of the subject inverters were completed according to the following sections of the test protocol entitled Performance Test Protocol for Evaluating Inverters Used in Gnd Connected Photovoltaic Systems prepared by Sandia National Laboratories Endecon Engineering BEW Engineering and Institute for sustainable Technology dated October 14 2004 as modified by the CEC Guideline for the use of the Performance Test Protocol for Evaluating Inverters Used in Grid Connected Photovoltaic Systems draft for immediate use prepared by REMA Xenergy and BEW Engineering dated March 1 2003 with deviations according to the requirements of the Califorma Energy Commission New Solar Homes Partnership Guidebook 2nd edition CEC 300 2007 008 CM
47. erter needs to be removed Ref Fig 14 screw pos A in order to gain access to the terminal block board After the cover is removed short the pins marked as IN2 and IN2 on the terminal block DC INPUTS To connect the 2 pins use the cable provided with the unit as shown in Fig 12 After the above connections are completed install the cover and tighten the screws with a 1 5Nm 13 2 in lbs torque and perform the START UP procedure in section 4 POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 37 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ee od __tC_ INPUTS M 3 Fig 12 Short Circuit on IN2 Channel 3 3 5 2 Parallel Connection of the Aurora DC inputs i IN1 Q IN2 IN2 a JF25 99 1 bt a Le ie perform the AURORA ELECTRICAL DISCONNECT PROCEDURE WARNING Before performing the following instructions ALWAYS described in section 3 3 1 of this manual WARNING When the current from the photovoltaic array exceeds 16Adc A N for the PVI 4 2 model or 10Adc for the PVI 3 0 3 6 models when the array power exceeds the limit for the single channel see table in 8 1 paragraph or when there is a consistent unbalance of the power between two arrays it is necessary to parallel the 2 inputs power one YJ c hanging the Shape of Power Installation and Operator s Manual Page 38 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 to the
48. erval POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 79 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 8 Info This menu is used to display all Aurora data gt Part No part number gt Serial No Wk Yr serial number week year gt Fw rel firmware release level pam zs oO Ent Esc ND_T_F MS_AUT1 MS_AUT2 MS_AUT3 MS_AUT4 MS_AUT5 ND_AUT_2 AUT_3 ND_AUT_1 ND_AUT_4 oO LL a Q Pah ND_ Test Fail iii ENT ESC Test completed ND_T_OK Test OK PowEer one VAS G hanging the Shape of Power Page 80 of 108 3 f SS P L EFINI 2 ned on ayy Buca Kibet win ioe e a gy baay o sa ens Borg oud OM j TH vicky pubs yf oN i yo ex oe uuw mai Haigh a ee a AN SNypHBA 5 Cr ONne S a S S A th 5 a gino sL way wns a me q i c S e YIS ON T 1 i 4 x ey Ps al nnan i _ Jie oni we Installation and Operator s Manual PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Installation and Operator s Manual Page 81 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 6 DATA CHECK AND COMMUNICATION 6 1 Connection through RS 485 serial port or RJ12 connectors 6 1 1 RS 485 serial port R
49. etects an operating R X malfunction or fault of the monitored system the yellow LED comes on and a message showing the type of problem found appears on the LCD G XX 6 RS 485 address setup indication Y Id During installation the yellow LED will keep flashing until the address R K is acknowledged For further information about address entry refer to section 5 5 7 1 G X 7 Grid disconnection Y B R XX 5 4 Messages and Error Codes The system status 1s identified through message or error signals appearing on the LCD The table that follows summarizes the two types of signals that can be displayed MESSAGES identify the current Aurora inverter status so they do not relate to faults and nothing has to be done messages disappears as soon as the system is back to normal operating conditions See the W strings 1n the following table ALARMS identify a possible equipment fault or a fault of the connected parts Alarm signals will disappear as soon as the causes are removed except for ground insulation faults in the photovoltaic panels which have to be corrected by qualified personnel Usually when an error signal appears an action is needed This action will be managed as much as possible by Aurora or in case this is not possible Aurora will supply all the necessary help information to the person who will have to perform the maintenance operations to fix the fault on the equipment or system See the E strings in the following table
50. fN o POWEr 0ne Changing the Shape of Power AURORA Photovoltaic Inverters INSTALLATION AND OPERATOR S MANUAL Note This document contains proprietary information of Power One Inc The contents of this document or any part thereof should not be reproduced or disclosed to any third party without Power One s express written consent Model number PVI 3 0 3 6 4 2 OUTD x US Rey 2 1 Installation and Operator s Manual Page 2 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 REVISION TABLE Document Date Change Description Revision 1 0 19 Nov 07 1 1 12 Jan 09 2 0 17 Mar 09 Certificate of Compliance added 2 1 26 Jun 09 Modified allowed cable section according to normative SAVE THESE INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 3 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 IMPORTANT SAFETY INSTRUCTIONS This manual contains important safety instructions that must be followed during the installation and startup of the equipment To reduce the risk of electrical shock hazards and to ensure the equipment is safely installed prior to operation special safety symbols are used in this manual to highlight potential safety hazards and provide important safety information The symbols are and instructions that must be followed to avoid potential injury to personnel WARNING The paragraphs highlighted by this symb
51. h on average cover more than 2 days logged data e Partial counter of grid connection time counter start time can be reset using the Aurora Communicator software e Partial counter of energy uses the same start time as the partial time counter e Last 100 fault conditions with error code and time stamp e Last 100 changes to grid connection parameters with parameter code and new value The first two types of data are displayed on the LCD and through the RS 485 interface while all other data can be displayed only through the RS 485 interface POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 56 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 3 LED indicators There are three LEDs at the side of the display the first LED from the left POWER indicates proper operation of the inverter the LED in the middle FAULT indicates a fault condition whereas the LED on the right GFI indicates a ground fault l The green Power LED indicates that the Aurora inverter is operating correctly This LED flashes upon start up during the grid check routine If a correct grid voltage is detected and solar radiation is strong enough to start up the unit the LED stays on steady If not the LED keeps flashing until solar radiation becomes strong enough to start up the inverter In this condition the display will read Waiting for sun The yellow FAULT LED indicates that the Aur
52. hanging the Shape of Power Installation and Operator s Manual Page 74 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 2 Contrast display light contrast Available display light tones go from 0 to 9 Press UP and DOWN to scroll numbers and then press ENTER to confirm 3 Buzzer key tone setting Selecting ON key tone on OFF key tone off 5 5 7 3 Service Only installing staff can gain access to this function which is password protected and dedicated code is supplied by Power One 5 5 7 4 New Password This function is used to change the default password 0000 To set your personal code use the display keys as follows Use ENTER to move from one digit to the next from left to right Use ESC to go back to the previous digit from right to left Press ESC repeatedly to go back to the previous menus as described in section 5 5 3 Press DOWN to scroll numbers backwards from 9 to 0 Press UP to scroll numbers from 0 to 9 VV VV WV 5 5 7 5 Cash This function is about energy output savings Name Val KWh 00 50 Name set desired currency using keys as usual Default currency is US Dollar Val K Wh it indicates the cost of 1 KWh expressed in set currency Default setting 1s 0 50 Euro 5 5 7 6 Time This function allows time and date setting Time 14 21 Date 17 May 2006 POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 75 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 7 7
53. high switching frequency to enable a compact design and relatively low weight This is a transformerless version of the Aurora 1 e without galvanic insulation between input and output which further increases conversion efficiency On the other hand the Aurora inverter 1s equipped with the necessary protective devices to ensure safe operation in compliance with applicable regulations without an insulation transformer These protections are discussed in more detail in sections 2 4 through 2 4 3 PY Array Vee G00 V max Yo 340 Y nom fam Fig 4 Aurora Inverter Block Diagram POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 16 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 The block diagram shows an Aurora PVI 3 0 3 6 4 2 OUTD US with two independent input DC DC converters each converter is dedicated to a separate array with independent Maximum Power Point Tracking MPPT control This means that the two arrays can be installed in different positions and orientations Each array is controlled by an MPPT control circuit Thanks to its high efficiency and a generously sized heat sink the Aurora inverter provides maximum power operation in a broad range of ambient temperatures The inverter is controlled by two independent Digital Signal Processors DSPs and one central microprocessor This way grid connection is controlled by two independent computers in full compliance with electrical
54. ibility to file a claim with the carrier Failure to file a claim with the carrier may void all warranty service rights for any damage Save the Aurora inverter s original shipping package in the event that you should ever need to return the inverter for repair POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 19 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 1 1 Inspecting package contents Description Quantity No Aurora Inverter l Bag containing l Nr 4 6 3x70 screws nr 4 SX10 wall plugs red cable AWG10 black cable AWG10 Torx20 wrench nr 1 6x10 screw nr 1 d 18 washer Installation and Operator s Manual l Certificate of warranty l CD ROM with communication software i 3 2 Selecting the installation location Installation location should be selected based on the following considerations Height from ground level should be such as to ensure that the display and status LEDs are easy to read Select a well ventilated location sheltered from direct sun radiation Choose a location that allows unobstructed airflow around the inverter Allow sufficient room around the inverter to enable easy installation and removal from the mounting surface A door is provided on the front of the inverter to allow for hardware maintenance and the USB port for software connection is on right side wall of the inverter protected by a cover Ensure free access to the right side otherwise you will h
55. in parallel with one MPPT If the inverter is configured with 2 independent MPPTs the max current for each channel shall not exceed 16Adc for the PVI 4 2 model or 10Adc for the PVI 3 0 3 6 models WARNING THE INPUT CURRENT SHALL NEVER EXCEED 16Adc for the PVI 4 2 model or 10Adc for the PVI 3 0 3 6 models for each channel single contact in the terminal block D C IN1 e IN2 in the Switch Box After the DC connection is completed follow the instructions in section 3 3 6 ELECTRICAL CONNECTION TO THE AC GRID POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 36 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 3 5 1 Aurora Inverter Connection to a Single Photovoltaic Array If the system has one single photovoltaic array and the current from it is less than 16Adc for the PVI 4 2 model or 10Adc for the PVI 3 0 3 6 models and the power of the array is below the limit for the single channel see table in 8 1 paragaph then the array can be connected to one single input channel IN1 WARNING Before performing the following instructions ALWAYS A N perform the AURORA ELECTRICAL DISCONNECT PROCEDURE described in section 3 3 1 of this manual To avoid possible misreadings in the insulation parameters we recommend using an electrical cable to short the 2 inputs of channel IN2 shown in Fig 12 that are not connected to the photovoltaic array The cover of the Aurora inv
56. in the bracket shown as pos B in Fig 8a If needed to ensure stability of the inverter you can use 2 additional screws in the 2 holes shown as pos A in Fig 8a WARNING The bracket needs to be mounted vertically to the wall and the side with the hook shown as pos C in Fig 8b should be mounted with the hook pointing upward as shown in the picture be used and the mounting holes in the wall should have a 10mm diameter and 75mm depth When the wall is made of a different material other than concrete the installation should be done using adequate mounting material Power One recommends always using stainless steel screws IS If the installation is done on a concrete wall the wall plugs provided should After the bracket is secured to the wall install the inverter as shown in figure 8b The inverter should be hung onto the bracket using the hooks D and F that need to be well inserted into their counterparts C and E D connects to C and F connects to E The inverter needs to be lifted up and then slid down over the hooks making sure that the connecting points in the bracket and in the back of the inverter engage properly After the inverter 1s hung onto the wall mounting it needs to be secured using a M6x10 screw and the relative washer that will pass through the opening on the lower side of the inverter shown as pos H in Fig 8b and into to the PEM fastener in position G of the bracket POWET ONeE VJ 6 hanging the
57. ing The rate of change in frequency shall be less than 0 5 Hz per second POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 100 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 The PVI 4 2 3 6 3 0 OUTD x US voltage and frequency limits are listed in the following table Condition Trip Limits Trip Times Voltage V Frequency Hz sec A Z 0 55 Vat Rated 60 Hz e 0 55 Vaor lt V lt 0 90 Rated 60 Hz Va C 1 08 Vaor lt V lt Rated 60 Hz max 1 18 Vior 310Vac 310Vac Vnor lt V E F 0 02Hz V is the nominal output voltage rating 8 7 Fault Current The output current in case of fault short circuit between lines or between line and neutral has been measured according to UL1741 requirements The following tables shows the corresponding current and duration Output Fault Duration Fault Total Voltage Current mSec Current Duration RMS A 3 cycles PK A mSec PVI 4 2 49 92 122 4 119 0 ee 740 49 92 1644 120 9 7 49 92 165 9 132 eres POWET ONe VJ 6 hanging the Shape of Power Series Installation and Operator s Manual Page 101 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 49 92 162 0 121 8 PVI 3 0 eT1es 8 8 Power Derating In order to ensure inverter operation under safe conditions both from the temperature and electrical point of view the unit automatically decreases power input in the distribution grid Power dera
58. instant grid frequency 9A Vinl 0V I ini 0 0 A Vin1 Instant input voltage measured at channel input lin1 Instant input current measured at channel 1 input POWEl ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 66 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 10A Vin2 0V I in2 0 0A Vin2 Instant input voltage measured at channel 2 input lin2 Instant input current measured at channel 2 input Or Vin 0V Lin 0 0 A In a configuration with one input connected and a second input connected in parallel this screen is shown instead of the 2 screens described in 9A and 10A 11A Pin 1 0 W Pin 2 0 W Pinl Measured instant input power of channel 1 Pin2 Measured instant input power of channel 2 Pin 0 W In a configuration with one input connected and a second input connected in parallel this screen is shown instead of the screen described in 11A 12A Riso 0 0 Mohm Ileak 73 mA Riso Measured insulation resistance Unlike the parameters discussed above this is not an instant value but a one of a kind measurement taken upon inverter start up POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 67 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Inverter OK Wed 17 May 11 23 If all items described above tested OK the inverter shows a corresponding message in the display top line along with date and time Clock malfunctioning
59. ironmental conditions and to input voltage can occur at the same time but in this instance power derating will always consider the lowest value detected POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 104 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fi CSA INTERNATIONAL Certificate of Compliance Certificate 2006477 Master Contract 173688 Project 2096477 Date Issued 2009 03 06 Issued to Power One Inc 740 Calle Plano Camarillo CA 93012 USA Attention Mr Gianfranco Iannuzzi The products listed below are eligible to bear the CSA Mark shown with adjacent indicators C and US for Canada and US or with adjacent indicator US for US only or without either indicator for Canada only Issued by Rob Hempstock AScT Authorized by Lindsay Clark Product Group Manager ABAAA CLASS 5311 09 POWER SUPPLIES Distributed Generation Power Systems Equipment CLASS 331189 POWER SUPPLIES Distributed Generation Power Systems Equipment Certified to U S Standards Utility Interactive Inverter Models PVI 4 2 OUTD US PVI 3 6 OUTD US PVI 3 0 OUTD US PYT 4 2 OUTD S US PVI 3 6 OUTD 8 US PVI 3 0 OUTD 3 U0S PVI 4 2 OUTD US W PVT 3 6 OUTD US W and PV1 3 0 OUTD US W provided with two DC input channels permanently connected POWEr One VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 105 of 108 PVI 3 0 3 6 4 2 OUTD x US Re
60. ltage PV N 1 Input voltage PV N 2 Input current PV N 1 Input current PV N 2 Output power PV N l Output power PV N 2 Output voltage Output current Output power Frequency Accumulated energy Time counter Partial time counter Page 88 of 108 The following tables show for each reading Name of Resolution Maximum measured Unit of l error variable Measure Display Value percentage VPI Vdc 1V 600mV 2 VP2 Vdc 1V 600mV 2 IP1 Adc O 1A 25mA 2 P2 Adc O 1A 25mA 2 Pinl W 1 W 10 W 2 Pin2 W 1 W 10 W 2 Vout V 1V 2 Tout A O 1A 2 Pout 1 W 2 Freq Hz 0 01 0 01 0 1 Energy Wh 1Wh 4 Lifetime hh mm ss ls 0 2 Partial hh mm ss ls 0 2 Time POoWEr one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 89 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 7 TROUBLESHOOTING Aurora inverters comply with standards set for grid tied operation safety and electromagnetic compatibility Before being delivered the product has been successfully subjected to several tests to check operation protective devices performance and durability All these tests together with the system ensuring Power One quality guarantee Aurora optimal operation In case of any possible malfunction of the inverter solve problems as follows v Work under safe conditions as stated in section 3 3 and following check that connections between the Aurora photovoltaic field and power distribution grid
61. m signal cables N Box See fig 15a 15b for appropriate cabling 2 PS ei me eee oe We G Fig 15a Complete cabling a POWEr One VSO hanging the Shape of Power Installation and Operator s Manual Page 44 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 RS485 Input cables cables Ww am nO Alarm Output cables i cable Ground cable Fig 15b Complete cabling particular WARNING All the screws on the electrical input output terminal block of the inverter should be tightened using 13 in lbs torque gt IMPORTANT In case of inverter without the Switch Box follow the same cabling approach for signal and communication cables as shown in fig 15c zi PowEer one VSG hanging the Shape of Power Installation and Operator s Manual Page 45 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 15b Complete cabling without Switch Box application POWET One VSO hanging the Shape of Power Installation and Operator s Manual Page 46 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 4 Disconnecting the AURORA Inverter from the DC Switch Use the procedure in paragraph 3 4 1 anytime that it is necessary to electrically disconnect the Aurora inverter from the DC Switch Box 3 4 1 ELECTRICAL DISCONNECTION OF THE INVERTER FROM THE SWITCH BOX PROCEDURE extremely dangerous CARFULLY FOLLOW EACH STEP OF THIS PROCEDURE in order to avoid injury to personnel and or equipment damage
62. mpared to specified values within outside range e Grid frequency value and status compared to specified values within outside range 4 When the connection sequence is completed the Aurora inverter starts Operating proper operation is indicated by a warning sound and the green LED staying on steady This means that sun radiation 1s sufficient to feed the grid 5 If the grid check routine gives a negative result the unit will repeat the procedure until all grid voltage and frequency parameters and grid configuration POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 50 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 are found to be within the specified range During this process the green LED will keep flashing POoWEr 0ne VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 51 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 MONITORING AND DATA TRANSMISSION 5 1 User s Interface Mode M WARNING The RS 485 cable must provide at least 600V protection WARNING The RS 485 cable must be UL CSA certified wiring and must be additionally protected by means of a non metallic conduit Normally the Aurora inverter operates automatically and needs no particular supervision When solar radiation is not enough to generate power for the grid for instance at night the Aurora disconnects automatically and goes into standby mode The operating cycle is resumed automati
63. n the AC output side an automatic magnetothermic switch should be inserted between the Aurora inverter and the distribution grid see Fig 9 Electrical Connection Diagram On the DC input side a DC switch should be inserted when not integrated in the inverter The S models have an integrated DC switch 600V 25A WARNING To reduce the risk of fire connect only to a circuit provided with 20A maximum branch circuit overcurrent protection in accordance with the National Electric Code ANSI NFPA 70 POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 26 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 3 3 1 Switch Box ELECTRICAL CONNECTING and or DISCONNECTING procedure EXTREMELY CAREFULLY in order to avoid injury to personnel and or equipment damage The Aurora inverter works at high voltage levels that may be extremely dangerous 1f all precautions are not observed WARNING FOLLOW EACH STEP OF THIS PROCEDURE WARNING THE FOLLOWING OPERATIONS MUST ALWAYS BE PERFORMED before accessing the power input of the Switch Box in order to avoid injury to personnel and or damage to equipment STEP 1 If the inverter is connected to the AC Grid Fig 15 Terminal Block for AC Connection pos 1 2 and 3 DISCONNECT the inverter from the AC Grid by opening the switch indicated as Part D in Fig 9 Electrical Connection Diagram Disconnect the DC side switch integrated in the S m
64. o tases enna pst Hes deen nbd goaseinse ue ctsow ebint patos eto ies petniienenondneterseuedbetede 26 3 3 2 Removing the Front Cover and Accessing the Internal Terminal Block 28 3 3 3 Aurora Switch Box Description o aassaeeeeeesssssnnnneesssssssrrrerssssrrenn 29 3 3 4 AURORA Inverter Typical Electrical Installations cccccccccc cece eeeeeeees 34 3 3 5 Possible Aurora DC Input Configuration ccccccccccccccccceseeseececcccseeeeeaaes 35 3 3 5 1 Aurora Inverter Connection to a Single Photovoltaic Array 36 3 3 5 2 Parallel Connection of the Aurora DC inputs 37 3 3 6 Connection to the AC GRID ccccccccccccccccc cece ctnecceec ect eeeeeceeeenaeeseeesanneees 40 3 3 7 Connection of RS485 and Alarm contact 42 3 4 DISCONNECTING THE AURORA INVERTER FROM THE DC SWITCH 46 3 4 1 ELECTRICAL DISCONNECTION OF THE INVERTER FROM THE SWITCH BOX PROCEDURE oooeoeeeeeeesssssssnnnnnneesssssssssrrrrnssneesssssssssrrrrrreesesss 46 GPs CR2032 LITHIUM BATTERY REPLACEMENT ssseeeceeeccceceeeeeeeeeeeeeees 48 A START UP seee ESEE EEEN EEEN REET 49 Power one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 8 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 MONITORING AND DATA TRANSMISSION 008 51 5 1 USER S INTERTACE MODE serisonu oE EEE ESER 51 5 2 PT ATA BC DATA ea E E 54 5 2 1 Real time operational Cat ccccccccccccccccsvcccccceccececcensesseceese
65. odels or externally provided STEP 2 Carefully cover all the photovoltaic panels using appropriate cover or perform the grid CONNECTION and or DISCONNECTION operation during night hours Ensure that the no photovoltaic panel can provide energy during this operation POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 27 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 AC Ground _ AC Fault a bipolar Protection O x a ENERGY T switch Device nt Aurora part D 1 gt 100 mA COUNTER D Inverter 5 i I now part i ot 2 part C part E Fig 9 Electrical Connection Diagram WARNING Always open the AC disconnect switch to disconnect the Aurora inverter from the Grid before opening the DC disconnect switch WARNING To avoid the risk of electric shock from energy stored in capacitors wait 5 minutes after disconnecting both AC and DC sides before opening the front panel WARNING A requirement when selecting the electrical cables is to carefully evaluate the nominal operating voltage the insulation rating the max operating temperature the current rating and the flammability rating in accordance with the local safety standards When selecting the wire for the installation the correct size needs to be selected in order to avoid efficiency loses Refer to Table CN 01 section 3 3 6 AC Grid Connections to select the cable size The electrical power an
66. ol contain processes and equipment damage NOTE The paragraphs highlighted by this symbol contain processes and instructions that must be followed to avoid potential equipment damage or negative results e The equipment is provided with several labels Labels with a yellow background are related to safety issues e Read the labels and ensure that you understand them before performing equipment installation e The labels utilize the following symbols Equipment grounding conductor Main grounding protective earth PE Alternating Current AC value Phase Direct Current DC value Grounding Earth POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 4 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 USEFUL INFORMATION AND SAFETY STANDARDS FOREWORD Installation of the Aurora inverter must be performed in full compliance with national and local standards and regulations The Aurora inverter has no user serviceable parts For maintenance or service please contact Power One Customer Service Read the instructions contained in this manual and become familiar with the safety symbols in the relevant paragraphs before you install and operate the equipment Connection to the distribution grid must be done only after receiving approval from the appropriate local distribution utility as required by national and state interconnection regulations and must be done only by qualified personn
67. ons on how to set addresses In addition the last inverter of the chain must have line termination contact active S2 switch 12002 TERM set to ON See Fig 24 Any Aurora device is supplied with default address two 2 and with the S1 DIP switch in the OFF position In order to ensure optimum communication on the RS485 line Power One recommends connecting the PVI RS232485 adapter to a location between the first unit of the daisy chain and the computer See Fig 25 for further details Other equivalent devices available on the market can also be used but Power One does not assure correct connection operation since their equipment has never been tested with these equivalent devices Please note that these other equivalent commercial devices could require an external termination impedance which is not necessary for Aurora PVI 232485 Figure 25 shows you how to connect multiple units into a daisy chain configuration POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 86 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 RS 485 _ 5 w R5485 ADAPTER TR P I RS232 485 x fa Bg r RS 232 m m Last Unit oe GL al j 3rd ai Fig 25 Daisy Chain Multiple Connection NOTE When using an RS 485 link there can be up to 248 inverters connected on the same link Choose any address between 2 and 248 NOTE When using the RS 485 link in case
68. ora inverter has detected a fault condition A fault description will appear on the display The red GFT ground fault LED indicates that Aurora is detecting a ground fault in the DC side of the photovoltaic system When this kind of fault is detected the Aurora inverter immediately disconnects from the grid and the corresponding fault indication appears on the display The inverter remains in this condition until the operator presses the ESC key to re start the grid connection sequence If the inverter does not reconnect to the grid contact service to have the system checked Power one Fig 19 LED Location LED indicator combinations and their meanings are listed in the following table PowEer one VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 57 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 KEY El LED on y LED blinking DI LED off Any one of the above conditions LEDs Status Operational Status Remarks green Xx Aurora self disconnection Input voltage less than 90 1 yellow X during nighttime Vdc at both inputs red X green d Aurora initialization It is in a transition status 2 yellow x settings loading and while operating conditions are red x waiting for grid check being checked green C Aurora is powering the Standard machine operation 3 yellow X grid search of max power point red or constant voltage green System insulation device Ground leak
69. perating PoOwWer ole LU hanging the Shape of Power Installation and Operator s Manual Page 62 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 LCD Display 5 5 1 Connection of the system to the grid The two line Liquid Crystal Display is located on the front panel and shows v Inverter operating status and statistics Vv Service messages for the operator V Error messages and fault indications During regular operation the display will cycle through available data The display changes to a different screen every 5 seconds or screens may be scrolled manually by pressing the UP 2nd key from display and DOWN keys 3rd key from display 1 These two screens are displayed upon inverter start up POWER ONE Initializing Please wait 2 The following screens may appear while waiting for the connection to be established While the system checks for grid connection to be established Missing Grid the yellow LED next to the display turns on steady while the green LED 1s flashing When waiting for sun radiation Waiting Sun the green LED turns on steady When the Missing Grid and Waiting Sun conditions are verified the inverter 1s connected 3 Time seconds to complete output voltage and frequency check Next connections 2 secs 4 Shows instant output voltage value and within outside range status Verid 197 8 V In range POWET ONeE VJ 6 hanging the Shape of
70. play has 2 lines use the keys at the side of the display to scroll through items or open the corresponding submenus as described in section 5 5 4 A FEW POINTERS ON DISPLAY KEY OPERATION An arrow on left side of the display highlights your current selection When the chosen item is selected press ENTER to open its submenu fN POoWEr 0ne VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 73 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 5 5 7 1 Address This function is used to set addresses for communication of the single inverters connected in the system on an RS485 line You can assign numbers from 2 to 250 Press UP and DOWN to scroll numbers If you do not want to manually set the address of each inverter select the AUTO function and they will be distributed automatically NEW ADDRESS NEW ADDRESS 248 Auto 5 5 7 2 Display Set This function is used to set display features Light Contrast Buzzer 1 Light display light setting y Mode Intensity Use the MODE key to set display backlighting Select the Mode item with the arrow and press ENTER to open the relevant submenu shown on this screen ON OFF Auto ON Light always on OFF Light always off AUTO Automatic light setting It turns on every time a key is pressed and stays on for 30 seconds then gradually turns off Use the INTENSITY key to set the intensity of backlighting from 0 to 9 POWET ONe VJ 6
71. re strings electrically connected in parallel Larger photovoltaic systems may be implemented by using several arrays connected to one or more Aurora inverters The greater the number of panels in each string the lower the cost and the less complex the wiring connections of the system PV Cell TE y Q J D BEREEEEEEE BESlESS05 SSSSSeESS2 BESEEESEEE BGGEESGEES lt PV Array a Fig 2 Array Composition AN PowWEr one VSO hanging the Shape of Power Installation and Operator s Manual Page 14 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 WARNING To avoid equipment damage the string voltage must not exceed 600 Vdc for any reason ics NOTE A minimum input voltage of 200 Vdc is required for the Aurora inverter to start the grid connection sequence Once connected the inverter will transfer the maximum available power for any DC input voltage value within a 90 Vdc to 580 Vdc range to the grid The total current of an array must also be within the capability limits of the inverter For PVI 4 2 model the limit is set at 16 Adc maximum for each input while for PVI 3 0 3 6 models the limit is set at 10 Adc maximum for each input The AURORA is capable of handling 2 separate arrays If the output of photovoltaic system exceeds the capacity of a single inverter additional Aurora inverters can be added to the system each inverter will be connected to an adequate section of the photovoltaic field on the
72. rom display Either way pressing the ESC key right next to the display calls back the previous menu I Fig 20 0 Fig 21 Auto scroll is indicated by 2 arrows in the top left corner of the display see Fig 20 To stop auto scroll press the ENTER key 4th key from display A padlock will appear see Fig 21 1A If the measurements taken previously see section 5 5 1 are found to be correct the system will proceed to the next checks The 12 screens outlined below are shown alternately as listed in this section 3A E tod Daily energy output tod Daily energy savings Value is expressed in the set currency POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 65 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 4A E tot Lifetime energy output since first installation E par Partial energy output during selected period SA P out 0 W T iny C P out Measured instant output power The second line of the display shows the higher of two temperatures T inv inverter heat sink temperature or T boost Heat sink temperature 6A Ppk Day Maximum peak power achieved during the day Counter will reset when unit is powered off 7A Vgrid 197 V Vorid Avg 0V Verid Measured instant grid voltage Verid Avg Average grid voltage during the last 10 minutes of operation 8A Igrid 0 8 A Ferid 50 18 Hz Igrid Measured instant grid current Ferid Measured
73. se or Grid voltage 240V split phase 240V split phase sets on a SOMES default default nominal or ae or 208V single phase 208V single phase ene setting required setting required fictive cena Grid voltage 88 to 110 of 88 to 110 of 88 to 110 of operating range as nominal voltage nominal voltage nominal voltage per UL 1741 211 to 264Vac 211 to 264Vac 211 to 264Vac regulation for V 240Vac for V 240Vac for V 240Vac a maeae 60 Hz 60 Hz 60 Hz nominal Grid frequency operating range as per UL 1741 59 3 to 60 5 Hz 59 3 to 60 5 Hz 59 3 to 60 5 Hz regulation Nominal output 10 8 12 5 14 4 13 15 17 15 1 17 5 19 9 POWEr One VJ 6 hanging the Shape of Power Installation and Operator s Manual PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 current Max output current Output over current protection Arms 12 14 5 14 5 Arms 15 20 20 Arms 8 3 Grid protection characteristics Anti islanding protection 8 4 General characteristics Description Maximum efficiency Internal consumption during stand by Internal consumption during nighttime Operating ambient temperature Casing protection rating Audible noise with internal fan on Size height x width x depth Value PVI 3 0 OUTD 96 8 96 EURO Arms 16 17 2 17 2 Arms 20 25 25 Arms Complies with UL 1741 standard Value PVI 3 6 OUTD 96 8 96 EURO lt 8 W lt 8 W lt 2 W lt 2 W 25 C to 60 C 25 C to 60 C
74. sesusesseseeeeeas 54 5 2 2 Internally logged data wiisstivscannsniatnsioiararinaiayedininarbiniassddnsausiasrteniontandustasia 55 Sis LEDINDICATORS 2enceseensucrracansennecaneseestneasmcevigeeaesan seen EEE aro aie 56 5 4 MESSAGES AND ERROR CODES sesseesesseeesresresrereresresrrsrrsrerrereersreeereerseeseee 59 5 5 LEDD TAT arra A E E ee 62 5 5 1 Connection of the system to the grid essnee 62 IIa LO MOS O OS ae a n A E E E E E E E E E S 63 5 5 3 First phase electric parameter check 64 IIA MT sarc E EE E E E E ncandeenenas 67 IIS OSS oA EE E E A E TE 68 IIO LI OTe ogee r A EEE EEE OEE E A E EE E 68 5 5 6 1 Lafetime cs cateseseecdetesentarwestenoanenctiedssenisintausenarentoeuoberans 68 Dee BAIA aa i EEEE EEEE E ER E EER 69 5 5 6 3 TOUAY cecccscscssscssesssessssesssesssecssscsssesssesssecsssecssesssecessecsve 69 5 5 6 4 Last 7 days ccccccecccccccccsseeccccccaeesecceeeaaeeecceeseeeeeeesees 69 5 5 6 5 Last Month on cearceguspacecaceenesnmnaoprenearadeneiee esgussereqnuseeetiees 70 5 5 6 6 BASE 30 AS arerceresceiicsaceorsasaniecacceeecaesrserns 70 5 5 6 7 Last 365 DayS 0 cecccccssccccceseecceaeeeceeaeeeceeaeeseesanees 70 5 5 6 8 User period cc ceccccccssesccccceeeececeeeeecceceaeeeceeeueeeceeeaas 70 De CTI GS eE EE nia ens EEE E ee esse acta woven EE EEEE 72 Sol POON CSS eeri sreersueeseeraneneratparreecesesasei enlacteseessseensoeed 13 Dida Doy OE eea EEE E E 13 d CU VICE e E E E E E 74 5 5 7 4 New Password cc
75. structions ALWAYS described in section 3 3 1 of this manual Step 1 Remove the Switch Box front panel remove the 4 screws in pos B of Fig 10 Step 2 Lay down the cable between the Aurora inverter and the AC disconnect switch Step 3 Pass the AC cable inside Aurora through one of the cable glands present in the lower side of the Switch Box see Fig 11 SB 01 DC Switch Box Layout pos A Steps 4 Connect the 3 AC wires to the relative terminal block present inside the inverter The AC wire connections should be done based on the type of AC Grid by following Table CN 01 AC Grid Connection The ground cable shall be connected to the terminal block indicated by the pointer of pos D of Fig 11 SB 02 Switch Box requirements of sections 690 41 through 690 47 of the NEC ANSI NFPA 70 WARNING The photovoltaic grounding shall be installed per the N and it is responsibility of the installer POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 41 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 15 Terminal Block for AC Connection Based on the local GRID standards it is possible to select different connection types The available configurations are shown in the following table Table CN 01 AC Grid Connections AN POWET One VSO hanging the Shape of Power Installation and Operator s Manual Page 42 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev
76. t Values 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 independently from the type the number and the operating conditions of the chosen photovoltaic panels As panel voltage also depends on working temperature the number of panels per string shall be chosen according to the min ambient temperature expected in that special area see table A WARNING The Aurora Inverter 1s provided with a linear output power derating depending on the input voltage starting from 530 Vdc 100 output power to 580 Vdc 0 output power WARNING The open circuit voltage of the photovoltaic panels 1s affected by the ambient temperature the open circuit voltage increases as the temperature decreases You have to make sure that the minimum temperature estimated for the installation doesn t cause the panels to exceed the maximum upper limit of 600Vdc As an example the following table shows for typical panels of 36 48 and 72 cells the maximum voltage of each panel as a function of the temperature assuming a nominal open circuit voltage of 0 6Vdc per cell at 25 C and a temperature coefficient of 0 0023V C The table shows therefore the maximum number of panels that can be connected in series as a function of the minimum temperature at which the system will operate Consult the panel manufacturer for the correct temperature coefficient of Voc b
77. ting can occur in two cases Power reduction due to environmental conditions Power reduction and temperature at which it occurs depend on many operating parameters other than ambient temperature such as input voltage grid voltage and power available from the photovoltaic panels The Aurora inverter can thus decrease power output during certain periods of the day according to these parameters In any case the inverter ensures top power up to 40 C ambient temperature when it is not directly exposed to the sun Power reduction due to input voltage The graph in Fig 27 shows automatic power output derating when input or output voltage is too high or too low POWET ONe VJ 6 hanging the Shape of Power Page 102 of 108 Installation and Operator s Manual PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Output Power two Dc sections operating Power W ebuey Huei do UoN 600 obuey Buneisg ebeyo 930 580 Input voltage V uano yndul xew 6ueiaq 1 MOd 90 ebuey Huei do UON Fig 30 A mE POWET ONE XS Changing the Shape of Power Installation and Operator s Manual Page 103 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Output Power one Dc section operating Power W Voltage Derating Range Non Operating Range Power Derating max input current Non Operating Range 90 180 Input 530 580 600 voltage V Fig 31 Necessary conditions for power derating due to env
78. trained personnel After battery replacement is completed reinstall and secure the front panel of the inverter and perform the START UP procedure in section 4 AN POWEr One VSO hanging the Shape of Power Installation and Operator s Manual Page 49 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 4 START UP WARNING Do not place any items on the Aurora inverter during operation WARNING Do not touch the heat sink when the inverter is operating as some parts may be hot and cause burns The start up procedure is as follows 1 Set the external DC disconnect if present for the photovoltaic panels to ON 2 Set the external AC disconnect for the grid to ON There is no specific order for closing the two disconnects WARNING This operation starts the connecting procedure for inverters Do not open the inverter or the switch box 3 Once both disconnects are closed the inverter starts the grid connection sequence unless the grid voltage and frequency parameters are found to be outside the operating range as per the UL 1741 standard The check routine 1s indicated by the flashing green LED labelled POWER over the display The check routine may take from 30 seconds up to several minutes depending on grid condition Three screens are shown on the display during the check routing e Measuring Riso connection in progress with progress indication Riso insulating resistance e Grid voltage value and status co
79. v 2 1 G fi CSA INTERNATIONAL Certificate 20906477 Master Contract 173688 Project 2096477 Date Issued 2009 03 06 Notes For details related to ratings reference should be made to the CSA Certification Record Appendix 1 or the Descriptive Report APPLICABLE REQUIREMENTS CAN CSA C22 2 No 0 M91 General Requirements Canadian Electrical Code Part I CAN CSA C22 2 No 0 4 04 Bonding of Electrical Equipment CSA C222 No 107 1 01 General Use Power Supplies UL Std No 1741 First Edition Inverters Converters Controllers and Interconnection System Equipment for Use With Distributed Energy Resources Including Revisions through and including November 7 2005 DOD 307 Rev 2004 06 30 POwWEr one AS G hanging the Shape of Power Installation and Operator s Manual Page 106 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 CSA INTERNATIONAL Supplement to Certificate of Compliance Certificate 2096477 Master Contract 1 3688 The products listed including the latest revision described below are eligible to be marked in accordance with the referenced Certificate Product Certification History Project Date Description 2096477 2009 03 06 Utility Interactive Inverters PVI 4 2 PVI 3 6 and FVI 3 0 Senes CUS POWEr One WA G hanging the Shape of Power Installation and Operator s Manual Page 107 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 w CSA PHTERMATIONAL ee M Lett
80. wire size E Ground F DC IN Terminal Block G Cable Knockouts Table SBD Switch Box Internal Parts Summary PoOWwer 0ie WLA G hanging the Shape of Power Installation and Operator s Manual Page 32 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 box apply the AWG size temperature and torque listed in the following table The restrictions on minimum AWG value is due to cable gland The restrictions on maximum AWG value is due to National Electric Code ANSI NFPA 70 i WARNING In order to thighten correctly the screw terminal of the switch Models PVI 4 2 3 6 C Nm OUTD S US AWG min max AC and GND field wiring terminals DC field wiring terminals Grounding Electrode Ho 90 48 5 Models PVI 3 0 Nm OUTD S US AWG Ke min max AC and GND field lt 2 2 20 wiring terminals DC field wiring 4 12 90 f 226 20 terminals ao 5 Grounding Electrode Ae 2 sej POWET ONeE VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 33 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 apply the AWG size temperature and torque listed in the following table The restrictions on minimum AWG value is due to cable gland The restrictions on maximum AWG value is due to National Electric Code ANSI NFPA 70 j WARNING In order to thighten correctly the screw terminal of the inverter Models PVI 4 2 3 6 C Nm OUTD US AWG nine max AC and
81. y efficiently using just static power electronic devices and without the need of rotating parts When used in parallel with the power grid the alternating current generated by the inverter is directly fed to the domestic distribution circuit which in turn is also connected to the public power distribution grid The solar energy system can thus feed all the connected user electrical loads such as lighting devices household appliances etc When the photovoltaic system is not generating sufficient energy the power required to ensure proper operation of connected user loads is taken from the public power grid While if the produced energy exceeds load needs it is directly fed to the grid thus becoming available to other users loads According to national and local standards and regulations the user produced energy can be sold to the grid or credited to the user against future consumption thus reducing costs and providing what could even be significant savings Available versions PVI 3 0 OUTD US PVI 3 6 OUTD US PVI 4 2 OUTD US PVI 3 0 OUTD S US PVI 3 6 OUTD S US PVI 4 2 OUTD S US POWET ONe VJ 6 hanging the Shape of Power Installation and Operator s Manual Page 12 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 The S US models are provided with an integrated 600V 25A DC switch as shown on fig la ewe n eR eRe Re RP ee ee ee eR eR ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee eH eta PY Input 1
82. y the National Electric Code ANSI NFPA 70 standard A WARNING The connection of an Aurora inverter to the electrical 3 1 distribution grid must be performed only after receiving authorization from the utility that operates the grid Package Inspection S NOTE The distributor delivered your Aurora inverter to the carrier safely packaged and in perfect condition Upon acceptance of the package the carrier assumes responsibility for its safe delivery In spite of careful handling transportation damage to the package or its contents is always a possibility The customer is encouraged to perform the following checks Inspect the shipping box for apparent damage such as holes cracking or any other sign of possible damage to its contents Describe any damage or shortage on the receiving documents and have the carrier sign his her full name Open the shipping box and inspect the contents for internal damage While unpacking be careful not to discard any equipment parts or manuals If any damage is detected call the delivering carrier to determine the appropriate action Save all shipping material in the event that the carrier sends an inspector to verify damage If the inspection reveals damage to the inverter contact your supplier or authorized distributor They will determine if the equipment should be returned for repair They will also provide instructions on how to get the equipment repaired It is the customer s respons

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