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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 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
grid, in full compliance with the applicable prevailing national standards and
regulations. To avoid any possible islanding operation, the Aurora inverter is 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:

•

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 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.

NOTE:

For more details of Aurora inverter shutdown or possible causes of

malfunction, please refer to sections 5.3 and 5.4.

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Содержание AURORA PVI-3.0-OUTD-S-US

Страница 1: ...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 Rev 2 1 ...

Страница 2: ...TD x US Rev 2 1 REVISION TABLE Document Revision Date Change Description 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 ...

Страница 3: ...NG The paragraphs highlighted by this symbol contain processes and instructions that must be followed to avoid potential injury to personnel 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 The equipment is provided with several labels Labels with a yellow background ...

Страница 4: ...nection regulations and must be done only by qualified personnel 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...

Страница 5: ...ons 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 Comply with all corresponding marks and symbols ...

Страница 6: ... 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 Manufacturing Part Number 2 Model Number 3 Serial Number 4 Week Year of Manufacture ...

Страница 7: ...FORE PERFORMING THE ELECTRICAL CONNECTIONS 24 3 3 1 Switch Box ELECTRICAL CONNECTING and or DISCONNECTING procedure 26 3 3 2 Removing the Front Cover and Accessing the Internal Terminal Block 28 3 3 3 Aurora Switch Box Description 29 3 3 4 AURORA Inverter Typical Electrical Installations 34 3 3 5 Possible Aurora DC Input Configuration 35 3 3 5 1 Aurora Inverter Connection to a Single Photovoltaic ...

Страница 8: ...es 63 5 5 3 First phase electric parameter check 64 5 5 4 Main menu 67 5 5 5 Statistics 68 5 5 6 Information 68 5 5 6 1 Lifetime 68 5 5 6 2 Partial 69 5 5 6 3 Today 69 5 5 6 4 Last 7 days 69 5 5 6 5 Last Month 70 5 5 6 6 Last 30 Days 70 5 5 6 7 Last 365 Days 70 5 5 6 8 User period 70 5 5 7 Settings 72 5 5 7 1 Address 73 5 5 7 2 Display Set 73 5 5 7 3 Service 74 5 5 7 4 New Password 74 5 5 7 5 Cash...

Страница 9: ... RS 485 serial port 81 6 1 2 RJ12 connectors 84 6 1 3 Daisy chain 85 6 2 SERIAL CONNECTION WITH USB PORT 87 6 3 ALARM CONTACT CONNECTION 87 6 4 MEASUREMENT ACCURACY 88 7 TROUBLESHOOTING 89 8 TECHNICAL FEATURES 91 8 1 INPUT VALUES 91 8 2 OUTPUT VALUES 94 8 3 GRID PROTECTION CHARACTERISTICS 95 8 4 GENERAL CHARACTERISTICS 95 8 5 BACKFEED CURRENT 98 8 6 VOLTAGE AND FREQUENCY LIMITS 99 8 7 FAULT CURREN...

Страница 10: ...any 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 is becoming more and more imp...

Страница 11: ...urrent 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 co...

Страница 12: ...08 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 1a Fig 1a Schema funzionale inverter con DC switch integrato Fig 1b Block diagram of inverters model without integrated DC switch ...

Страница 13: ...t 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 more strings electrically connected in parallel Larger photovoltaic systems may be implemented by using several arrays connected to one or more Aurora inverters The gr...

Страница 14: ...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 DC side and to the grid on the AC side Each Aurora inverter will work independent of the others and wil...

Страница 15: ... 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 high switching frequency to enable a compact design and relatively low weight This is a transformerless version of the Aurora i e without galvanic insulation between input and output which further increases conversio...

Страница 16: ...ctive 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 grid in full compliance with the applicable prevailing national standards and regulations To avoid any possible islandi...

Страница 17: ...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 automatic power limitation control based on internal temperature monitoring to avoid overheating heat sink temperature 70 C 158 F Many control devices are fitted to Aurora making its structure redundant but at ...

Страница 18: ...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 d...

Страница 19: ...ght 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 ...

Страница 20: ...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 ...

Страница 21: ...ommended Installation of Aurora Inverters NOTE Tilted mounting is permitted see Fig 7 but will reduce heat dissipation and may result in self derating WARNING The inverter surface may become hot to the touch during operation To avoid burn injury DO NOT touch the inverter surface during operation Fig 7 Tilted Mounting ...

Страница 22: ... a concrete wall the wall plugs provided should 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 After the bracket is secured to the wall install the inverter as shown in figu...

Страница 23: ...ecommended 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 Always make sure that the airflow is not blocked in any installations ...

Страница 24: ... and possible injury to personnel and or equipment damage WARNING All field wiring connected to signal circuits WIND ALARM REM 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 s...

Страница 25: ... 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 ...

Страница 26: ...efore 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 models o...

Страница 27: ...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 elec...

Страница 28: ...RTER 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...

Страница 29: ...N OFF C DC Switch D Signal cable entries SIZE G1 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 disc...

Страница 30: ...e 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 Fig 11 SD 01 Switch Box DC Electrical Schematics ...

Страница 31: ...2 1 Fig 11 SB 02 Switch Box POS Details A Terminal Block AC OUT B DIN bars for accessories C Grid Standard Table D Main Ground Max Wire Size AWG 4 Refer to local code for minimum wire size E Ground F DC IN Terminal Block G Cable Knockouts Table SBD Switch Box Internal Parts Summary ...

Страница 32: ...on maximum AWG value is due to National Electric Code ANSI NFPA 70 Wire Size Temp Torque Models PVI 4 2 3 6 OUTD S US AWG min max C Nm In lbs 4 10 90 AC and GND field wiring terminals 4 8 75 2 26 20 4 10 90 DC field wiring terminals 4 8 75 2 26 20 4 10 90 Grounding Electrode 4 8 75 5 08 45 Wire Size Temp Torque Models PVI 3 0 OUTD S US AWG min max C Nm In lbs 4 10 90 AC and GND field wiring termin...

Страница 33: ... on maximum AWG value is due to National Electric Code ANSI NFPA 70 Wire Size Temp Torque Models PVI 4 2 3 6 OUTD US AWG min max C Nm In lbs 6 10 90 AC and GND field wiring terminals 6 8 75 1 69 15 6 10 90 DC field wiring terminals 6 8 75 1 69 15 4 10 90 Grounding Electrode 4 8 75 5 08 45 Wire Size Temp Torque Models PVI 3 0 OUTD US AWG min max C Nm In lbs 6 10 90 AC and GND field wiring terminals...

Страница 34: ...ox 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 10 and connect the signal cable optional Pass t...

Страница 35: ...g 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 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 10A...

Страница 36: ...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 inverter needs to be removed Ref Fig 14 screw pos A in order to gain access to the terminal block boar...

Страница 37: ...ALWAYS perform the AURORA ELECTRICAL DISCONNECT PROCEDURE described in section 3 3 1 of this manual WARNING When the current from the photovoltaic array exceeds 16Adc 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 necessar...

Страница 38: ... 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 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 i...

Страница 39: ...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 ...

Страница 40: ...s 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 termin...

Страница 41: ...VI 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 ...

Страница 42: ...ce the power unbalances between the phases Always refer to the local standards 3 3 7 Connection of RS485 and Alarm contact WARNING Before performing the following instructions ALWAYS perform the AURORA ELECTRICAL DISCONNECT PROCEDURE 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...

Страница 43: ... 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 WARNING In order to separate correctly power cable from signal cables make sure to use the provided cable ties on the inverter and on the Switch Box See fig 15a 15b for appropriate cabling Fig ...

Страница 44: ...G All the screws on the electrical input output terminal block of the inverter should be tightened using 13 in lbs torque IMPORTANT In case of inverter without the Switch Box follow the same cabling approach for signal and communication cables as shown in fig 15c RS485 cables Alarm cable Input cables Output cables Ground cable ...

Страница 45: ...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 ...

Страница 46: ...e 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 ...

Страница 47: ...tion 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 Parallel 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...

Страница 48: ...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 Fig 16 Lithium Battery Repla...

Страница 49: ...found to be outside the operating range as per the UL 1741 standard The check routine is 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 Measuring Riso connection in progress with progress indication Riso insulating resista...

Страница 50: ...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 ...

Страница 51: ...e is resumed automatically the moment when solar radiation becomes strong enough This is indicated by the LEDs The Aurora inverter provides operational data in the following ways LED indicators Operational data on the LCD display 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 conven...

Страница 52: ...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 ...

Страница 53: ...Installation and Operator s Manual Page 53 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 18 Data Transmission Options ...

Страница 54: ...ware 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 Grid voltage Grid current Grid frequency Power transferred to the grid Voltage of photovoltaic array 1 Current of photovoltaic array 1 Voltage of photovoltaic array 2 Current of photovoltaic array 2 Heat sink temperature Serial ...

Страница 55: ... which on average cover more than 2 days logged data Partial counter of grid connection time counter start time can be reset using the Aurora Communicator software Partial counter of energy uses the same start time as the partial time counter Last 100 fault conditions with error code and time stamp Last 100 changes to grid connection parameters with parameter code and new value The first two types...

Страница 56: ...on becomes strong enough to start up the inverter In this condition the display will read Waiting for sun 2 The yellow FAULT LED indicates that the Aurora inverter has detected a fault condition A fault description will appear on the display 3 The red GFI 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...

Страница 57: ...transition status while operating conditions are being checked 3 green yellow red Aurora is powering the grid Standard machine operation search of max power point or constant voltage 4 green yellow red System insulation device faulty Ground leakage found 5 green yellow red Defect fault The fault can be inside or outside the inverter See the alarm appearing on the LCD 6 green yellow red Installatio...

Страница 58: ... and analyzes the maximum power point MPPT of the photovoltaic field G Y R 4 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 carefu...

Страница 59: ...ls 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 in the following table ALARMS identify a possible equipment fault or a fault of the ...

Страница 60: ...Error E011 Ramp Fail DC DC Fail E012 DcDc Error revealed by inverter DcDc fault detected by inverter Wrong Mode E013 Wrong Mode Single instead of dual channel Over Temp E014 Overtemperature Internal temperature too high Cap Fault E015 Bulk capacitor fail Bulk capacitor fault Inv Fail E016 Inverter fail revealed by DcDc Inverter fault detected by DcDc Int Error E017 Start Timeout Ground F E018 I le...

Страница 61: ...Fault Grid frequency FGrid misreading Int Error E029 Zgrid Measures Fault Grid impedance ZGrid misreading Int Error E030 Ileak Measures Fault Leak current ILeak misreading Int Error E031 Wrong V Measure Voltage V misreading Int Error E032 Wrong I Measure Current I misreading Fan Fail W010 Fan Fail No disconnection Fan faulty Log Only Int Error E033 UnderTemperature Internal temperature E034 Interl...

Страница 62: ...play and DOWN keys 3rd key from display 1 These two screens are displayed upon inverter start up 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 is flashing When waiting for sun radiation Waiting Sun the green LED tu...

Страница 63: ...ance 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 pr...

Страница 64: ...to the display calls back the previous menu Fig 20 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 sho...

Страница 65: ...imum peak power achieved since partial counter was activated Ppk Day Maximum peak power achieved during the day Counter will reset when unit is powered off 7A Vgrid Measured instant grid voltage Vgrid Avg Average grid voltage during the last 10 minutes of operation 8A Igrid Measured instant grid current Fgrid Measured instant grid frequency 9A Vin1 Instant input voltage measured at channel 1 input...

Страница 66: ...ns described in 9A and 10A 11A Pin1 Measured instant input power of channel 1 Pin2 Measured instant input power of channel 2 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 Measured insulation resistance Unlike the parameters discussed above this is not an instant value but a one of a kind mea...

Страница 67: ...the first time the unit is powered up or after the battery has been replaced FAN FAIL contact service MEMORY FAIL Data logging malfunction Contact service 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 dis...

Страница 68: ... 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 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 Time h E tot KWh Val CO2 lb Lifetime Partial...

Страница 69: ... 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 day...

Страница 70: ...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 5 5 6 8 User period This feature measures ...

Страница 71: ...previous field from right to left Press ESC repeatedly to go back to the previous menus as described in section 5 5 3 To set days Press DOWN to scroll numbers backwards from 31 to 1 Press UP to scroll numbers from 1 to 31 To set the month Press DOWN to scroll months from December to January Press UP to scroll months from January to December If set dates are inconsistent the display alerts the user...

Страница 72: ...n section 5 5 3 Press DOWN to scroll numbers backwards from 9 to 0 Press UP to scroll numbers from 0 to 9 Type in the correct password and press ENTER to access all information of this section The display 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 le...

Страница 73: ...istributed automatically 5 5 7 2 Display Set This function is used to set display features 1 Light display light setting 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 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 sec...

Страница 74: ...ult 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 5 5 7 5 Cash This function...

Страница 75: ...y means of the display keys 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 Press ENTER to access all information of this section OV Max voltage UV Min voltage OF Max Frequency UF Min Frequency DC injection Output current direct component This component shall not be 0 5...

Страница 76: ... 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 Al...

Страница 77: ... O and C only when an error signal occurs i 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 extern...

Страница 78: ...nd 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 1 second to 3600 seconds 5 5 7 13 MPPT scan This function is used to automatically detect input power max multiples 5 5 7 14 Scan Interval This function is used to set time interval for system max multiple scan...

Страница 79: ...nd 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 Part No part number Serial No Wk Yr serial number week year Fw rel firmware release level ...

Страница 80: ...Installation and Operator s Manual Page 80 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ...

Страница 81: ...l 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 Fig 23 Hole for cables necessary for RS 485 port connection or wiring for RJ12 connectors connect...

Страница 82: ...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 Signal wires must be connected to T R and T R terminals Ground wire must be connected to RTN terminal R...

Страница 83: ...Installation and Operator s Manual Page 83 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 24 Terminals for connection to RS 485 serial line and S2 switch RJ12 No 1 RJ12 No 2 ...

Страница 84: ... 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 Pin Signal Name Description 1 Not Used 2 TR Data Line Required for RS485 ...

Страница 85: ...ine termination contact active S2 switch 120Ω 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 Othe...

Страница 86: ...OTE 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 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 ...

Страница 87: ...SB 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 cable...

Страница 88: ...ue Maximum error percentage Input voltage PV N 1 VP1 Vdc 1V 600mV 2 Input voltage PV N 2 VP2 Vdc 1V 600mV 2 Input current PV N 1 IP1 Adc 0 1A 25mA 2 Input current PV N 2 IP2 Adc 0 1A 25mA 2 Output power PV N 1 Pin1 W 1 W 10 W 2 Output power PV N 2 Pin2 W 1 W 10 W 2 Output voltage Vout V 1V 2 Output current Iout A 0 1A 2 Output power Pout W 1 W 2 Frequency Freq Hz 0 01 0 01 0 1 Accumulated energy E...

Страница 89: ...lity guarantee Aurora optimal operation In case of any possible malfunction of the inverter solve problems as follows 9 Work under safe conditions as stated in section 3 3 and following check that connections between the Aurora photovoltaic field and power distribution grid have been made correctly 9 Carefully observe which LED is blinking and read the signal appearing on the display then followin...

Страница 90: ...g or steady 9 Signal displayed 9 Malfunction short description 9 Can malfunction be reproduced 9 If so how 9 Does malfunction appear cyclically 9 If so how frequently 9 Is malfunction present from installation 9 If so has it worsened 9 Description of the atmospheric conditions when the malfunction appeared INFO on the Photovoltaic Field 9 Make and model of photovoltaic panels 9 System structure ar...

Страница 91: ...to 580 Vdc 0 output power WARNING The open circuit voltage of the photovoltaic panels is 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 o...

Страница 92: ...er of panels Panel voltage Panel voltage Max number of panels Panel voltage 25 21 6 27 28 8 20 43 2 13 20 22 0 27 29 4 20 44 0 13 15 22 4 26 29 9 20 44 9 13 10 22 8 26 30 5 19 45 7 13 5 23 3 25 31 0 19 46 5 12 0 23 7 25 31 6 19 47 3 12 5 24 1 24 32 1 18 48 2 12 10 24 5 24 32 7 18 49 0 12 15 24 9 24 33 2 18 49 8 12 20 25 3 23 33 8 17 50 7 11 25 25 7 23 34 3 17 51 5 11 Table A ...

Страница 93: ...c from 90 Vdc to 580 Vdc from 90 Vdc to 580 Vdc Input voltage MPPT operating range at full power from 200 Vdc to 530 Vdc from 200 Vdc to 530 Vdc Vgrid 277 Vac or 240 Vac from 220 Vdc to 530 Vdc Vgrid 208 Vac from 200 Vdc to 530 Vdc Vgrid 277 Vac or 240 Vac from 220 Vdc to 530 Vdc Vgrid 208 Vac Max short circuit current of each array 12 5 Adc 20 Adc 20 Adc Max operating input current of each array ...

Страница 94: ...00 W 4200 W Grid voltage maximum range 183 to 304 Vac 183 to 304 Vac 183 to 304 Vac Grid voltage nominal 277V single phase or 240V split phase default or 208V single phase setting required 277V single phase or 240V split phase default or 208V single phase setting required 277V single phase or 240V split phase default or 208V single phase setting required Grid voltage operating range as per UL 1741...

Страница 95: ...dard 8 4 General characteristics Description Value PVI 3 0 OUTD Value PVI 3 6 OUTD Value PVI 4 2 OUTD Maximum efficiency 96 8 96 EURO 96 8 96 EURO 96 8 96 EURO Internal consumption during stand by 8 W 8 W 8 W Internal consumption during nighttime 2 W 2 W 2 W Operating ambient temperature 25 C to 60 C 25 C to 60 C 25 C to 60 C Casing protection rating IP65 Nema 4X IP65 Nema 4X IP65 Nema 4X Audible ...

Страница 96: ... 18 kg 18 kg 18 kg Relative Humidity 0 100 condensation point 0 100 condensation point 0 100 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 Fig 27 Efficiency curve PVI 3 0 OUTD ...

Страница 97: ...Installation and Operator s Manual Page 97 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Fig 28 Efficiency curve PVI 3 6 OUTD Fig 29 Efficiency curve PVI 4 2 OUTD ...

Страница 98: ...age 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 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 interna...

Страница 99: ... Vnor b V 0 88 Vnor Rated 60 Hz 2 C 1 10 Vnor b V 1 20Vnor Rated 60 Hz 1 D 1 20Vnor V Rated 60 Hz 0 16 E Rated f rated 0 5c 0 16 F Rated f rated 0 7c 0 16 a 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 t...

Страница 100: ...42 0 12 F Rated f rated 0 62 0 12 Accuracy 2 0 02Hz 0 033 b 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 Models Output Voltage Fault Current RMS A Duration mSec 3 cycles Fault Cur...

Страница 101: ...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 to...

Страница 102: ...Installation and Operator s Manual Page 102 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 Power Derating max input current Non Operating Range Voltage Derating Range Non Operating Range Fig 30 180 ...

Страница 103: ...ing max input current Non Operating Range Voltage Derating Range Non Operating Range Fig 31 Necessary conditions for power derating due to environmental conditions and to input voltage can occur at the same time but in this instance power derating will always consider the lowest value detected 180 ...

Страница 104: ...Installation and Operator s Manual Page 104 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ...

Страница 105: ...Installation and Operator s Manual Page 105 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ...

Страница 106: ...Installation and Operator s Manual Page 106 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ...

Страница 107: ...Installation and Operator s Manual Page 107 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ...

Страница 108: ...Installation and Operator s Manual Page 108 of 108 PVI 3 0 3 6 4 2 OUTD x US Rev 2 1 ...

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