Power One aurora Installation And Operation Manual
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Power One aurora Installation And Operation Manual

Photovoltaic inverters
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See also: Installation Manual , Installation & Operator's Manual
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AURORA
Photovoltaic Inverters
INSTALLATION AND OPERATOR
MANUAL
Model number: PVI-3.8/4.6-I-OUTD-US
Rev. 1.1

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  • Page 1 ® AURORA Photovoltaic Inverters INSTALLATION AND OPERATOR MANUAL Model number: PVI-3.8/4.6-I-OUTD-US Rev. 1.1...

  • Page 2: Important Safety Instructions

    Installation and Operation Manual Page 2 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) TABLE OF CHANGES Document Revision Author Date Change Description Federico Mastronardi 03/08/10 First draft Federico Mastronardi 09/12/10 First revision KEEP THESE INSTRUCTIONS! IMPORTANT SAFETY INSTRUCTIONS POWER-ONE: Complete or partial reproduction of this document by any means whatsoever is strictly forbidden without prior authorization of Power-One.
  • Page 3 Installation and Operation Manual Page 3 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) INSTRUCTIONS FOR READING THE MANUAL This manual contains important instructions for safety and operation which must be understood and carefully followed during installation and maintenance of the equipment. In order to reduce the risk of electric shock and to be sure that the equipment is correctly installed and ready to operate, special safety symbols are used in the manual to highlight potential safety risks or useful information.
  • Page 4 The entire solar panel must be covered with dark opaque sheets before being connected to the equipment. This is because its connection cables to AURORA could have high voltage and generate serious hazard conditions.
  • Page 5 Installation and Operation Manual Page 5 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) GENERAL During inverter operation, parts may be powered, may lose proper insulation and may move or rotate. In addition, some surfaces may become hot. Unauthorized removal of necessary protections, improper use, faulty installation and incorrect operation may lead to serious injury to people and/or equipment damage.
  • Page 6 Installation and Operation Manual Page 6 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 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.
  • Page 7 Installation and Operation Manual Page 7 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) PVI-3.8-I-OUTD-S-US-PG PVI-3.8-I-OUTD-S-US-NG PVI-3.8-I-OUTD-US-PG PVI-3.8-I-OUTD-US-NG PVI-4.6-I-OUTD-S-US-PG PVI-4.6-I-OUTD-S-US-NG PVI-4.6-I-OUTD-US-PG PVI-4.6-I-OUTD-US-NG This document applies only to the inverter versions shown above. Product name plate (PVI-4.6-I-OUTD-S-US-NG) The name plate affixed to the inverter provides the following information: 1) Manufacturer code 2) Model code 3) Serial number...

  • Page 8: Table Of Contents

    Installation of -US-xx models ........40 3.3.6 Possible Aurora DC Input Configuration ..........40 3.3.6.1 Independent Connection of the Aurora DC inputs ..41 3.3.6.2 Parallel Connection of the Aurora DC inputs.... 42 3.3.7 Connection to the AC GRID ..............43 3.3.7.1...
  • Page 9 US-xx models ................47 3.3.8.2 Connection of the RS485 and Alarm contact for -US- xx models...................48 3.3.9 Selction of the grid standard ..............48 3.3.10 Ground Fuse replacement ...............49 AURORA I DC S ISCONNECTING THE NVERTER FROM THE WITCH -S-US- )..................50...
  • Page 10 Installation and Operation Manual Page 10 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.4.5.7 Last 365 Days ............77 5.4.5.8 User Period ..............77 5.4.6 Settings...................... 78 5.4.6.1 Address ..............79 5.4.6.2 Display Set..............79 5.4.6.3 Service ............... 80 5.4.6.4 New Password ............80 5.4.6.5 Cash ................

  • Page 11: Introduction

    Installation and Operation Manual Page 11 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) INTRODUCTION 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. PHOTOVOLTAIC ENERGY...

  • Page 12: Description Of The System

    Page 12 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) DESCRIPTION OF THE SYSTEM AURORA is an inverter with the capability to supply the grid with energy obtained from photovoltaic panels. The photovoltaic panels convert the energy irradiated by the sun into electricity of the direct current 'DC' type (through a photovoltaic field, also called a PV generator);...
  • Page 13 Installation and Operation Manual Page 13 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) The S-US-xx models are provided with an integrated 600V, 25A DC switch. Fig. 1a - Block diagram of version with integrated DC switch –PG...
  • Page 14 Installation and Operation Manual Page 14 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 1b - Block diagram of version with integrated DC switch -NG...
  • Page 15 Installation and Operation Manual Page 15 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) The -US-xx models are supplied without a switch box and therefore without a 600V integrated switch. The -PG models are supplied with positive input grounded fig.1a (to be used only in parallel mode).

  • Page 16: Fundamental Elements Of A Photovoltaic System: 'Strings' And 'Arrays

    An ARRAY is one or more strings connected in parallel. Large photovoltaic systems can be composed of several arrays, connected to one or more AURORA inverters. Maximizing the number of panels in each string, the cost and complexity of the connection systems of the plant may be reduced.
  • Page 17 520V to the grid (see Fig. 31 and Fig. 32 for clarification). Fig. 1 The current of each array must also be within the inverter's limits. For AURORA the maximum current from each input can be 14 Adc for PVI-4.6-I-OUTD, 12.5 A for PVI-3.8-I-OUTD.

  • Page 18: Data Transmission And Check

    Technical Description of AURORA Fig. 1 shows the block diagram for AURORA. The main blocks 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.

  • Page 19: Protective Devices

    Each array is controlled by an MPPT control circuit. Thanks to AURORA’s high efficiency and large heat dissipation system, this inverter provides operation at maximum power in a broad range of ambient temperatures.

  • Page 20: Grounding/Differential Protection Fault

    A sophisticated ground protection circuit continually monitors the ground connection; when it detects a ground fault, this circuit shuts down AURORA 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 ground conductors.

  • Page 21: Installation

    It is the customer's responsibility 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.

  • Page 22: Inspecting Package Contents

    (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 3.1.1 Inspecting package contents Description Quantity (No.) Aurora Inverter Bag containing: Nr.4 6.3x70 screws, nr.4 SX10 blocks, 2 cables AWG10, Torx20 wrench, nr.1 6x10 screw, nr.5 d.18 washer, 2 counterparts for signal connectors (3 poles), 2 counterparts for signal connectors (8 poles) Nr.1 wall mounting bracket...
  • Page 23 Installation and Operation Manual Page 23 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 4 - Installation Location - Minimum Clearances around the Aurora Inverter RECOMMENDED ARRANGEMENT Fig. 5 - Recommended Installation of Aurora Inverters...
  • Page 24 Fig. 6 - Tilted Mounting The Aurora inverter should be mounted vertically as shown in Fig. 6. Always follow the relative mounting instructions provided in this section. 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.

  • Page 25: Wall Mounting For -S-Us Models

    Installation and Operation Manual Page 25 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 3.2.1 Wall mounting for -S-US models 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 in the bracket (shown as pos B in Fig.
  • Page 26 Installation and Operation Manual Page 26 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 7 - Wall Bracket and Wall Mounting (only -S-US models)

  • Page 27: Wall Mounting For -Us Models

    Installation and Operation Manual Page 27 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 3.2.2 Wall mounting for -US models 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 3 holes present in the bracket (shown as pos B in Fig.
  • Page 28 Installation and Operation Manual Page 28 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 8 - Wall Bracket and Wall Mounting (-US models)

  • Page 29: Before Performing The Electrical Connections

    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.

  • Page 30: Electrical Connecting And/Or Disconnecting Procedure (Only -S-Us-Xx Models)

    (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) On the AC output side an automatic magnetothermic switch should be inserted between the Aurora inverter and the distribution grid (see sections 3.3.1 or 3.3.2 of this manual). WARNING: To reduce the risk of fire, connect only to a circuit provided with 25A maximum branch circuit overcurrent protection for PVI-3.8-I or...
  • Page 31 Installation and Operation Manual Page 31 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 9 - Electrical Connection Diagram (-S-US models) 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.

  • Page 32: Electrical Connecting And/Or Disconnecting Procedure (Only -Us-Xx Models)

    THIS 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 if all precautions are not observed. WARNING: THE FOLLOWING OPERATIONS MUST ALWAYS BE PERFORMED before accessing the power input of the inverter in order to avoid injury to personnel and/or damage to equipment.
  • Page 33 Installation and Operation Manual Page 33 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 10 - Electrical Connection Diagram (-US models) 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.

  • Page 34: Removing The Front Cover And Accessing The Internal Terminal Block

    To remove the front cover of the switch box, loosen the 4 screws shown in Fig. 11, pos “B” using the torx screwdriver provided in the box with the inverter. Fig. 11 - Aurora Inverter 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...

  • Page 35: Aurora Switch Box Description

    Installation and Operation Manual Page 35 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 3.3.4 Aurora Switch Box Description Fig. 12 - DC Switch Box Layout Pos. Fig. 11 Description DC Power cable knockouts – SIZE: 1”, ¾” AC Power cable knockouts – SIZE: 1”, ¾”...
  • Page 36 Installation and Operation Manual Page 36 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 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"). 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 section 3.3.1 prior to working on the cables.
  • Page 37 Installation and Operation Manual Page 37 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 14 - Switch Box, Internal View Details DC terminal input DIN bars for accessories DC switch Main Ground - Max Wire Size = AWG# 4 (Refer to local code for minimum wire size) Ground AC terminal output...

  • Page 38: Ac And Dc Wire Selection

    Installation and Operation Manual Page 38 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 3.3.4.1 AC and DC wire selection The following tables help installers to select the proper cable size and tighten correctly to the screw terminals PVI-3.8-I-OUTD 167°F 194°F (75°C) (90°C) DC input wiring PVI-3.8-I-OUTD-S- 10-4...

  • Page 39: Aurora Inverter Typical Electrical Installations

    Installation and Operation Manual Page 39 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 3.3.5 AURORA Inverter Typical Electrical Installations. WARNING: THE INPUT CURRENT shall not exceed 14 Adc for PVI-4.6- I-OUTD, 12.5A for PVI-3.8-I-OUTD for each input channel. 3.3.5.1 Installation of -S-US-xx models...

  • Page 40: Installation Of -Us-Xx Models

    Inverter, ALWAYS perform the disconnection procedure as explained in section 3.3.1 or 3.3.2 of this manual. The Aurora inverter can be configured with an independent MPPT for each DC input channel or with the 2 input DC channels connected in parallel with one MPPT. If the inverter is configured with 2 independent MPPTs, the max current for each channel shall not exceed 14 Adc for PVI-4.6-I-OUTD, 12.5 Adc for PVI-3.8-I-OUTD and the...

  • Page 41: Independent Connection Of The Aurora Dc Inputs

    After the DC connection is completed, follow the instructions in section 3.3.7. 3.3.6.1 Independent Connection of the Aurora DC inputs WARNING: Before performing any operation on the Switch Box power input or on the Inverter, ALWAYS perform the disconnection procedure as explained in section 3.3.1 or 3.3.2 of this manual.

  • Page 42: Parallel Connection Of The Aurora Dc Inputs

    Page 42 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 3.3.6.2 Parallel Connection of the Aurora DC inputs (default set-up) WARNING: Before performing any operation on the Switch Box power input or on the Inverter, ALWAYS perform the disconnection procedure as explained in section 3.3.1 or 3.3.2 of this manual.

  • Page 43: Connection To The Ac Grid

    (default set-up). 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.

  • Page 44: Connection To The Ac Grid For -S-Us-Xx Models

    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. 12 pos. "B" or "E").
  • Page 45 Installation and Operation Manual Page 45 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 17 - Terminal Block for AC connection (-S-US models) 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").

  • Page 46: Connection To The Ac Grid For -Us-Xx Models

    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 Inverter Step 4: Connect the 3 AC wires to the relative terminal block present inside the Inverter (Fig.

  • Page 47: Connection Of Rs485 And Alarm Contact (Optional)

    Step 1: Remove the Switch Box front panel (remove the 4 screws in pos "B" of Fig. 11). Remove also the cover of the Aurora inverter (screw pos. "A" of Fig. 11) in order to gain access to the terminal block board.

  • Page 48: Connection Of The Rs485 And Alarm Contact For -Us- Xx Models

    Step 1: Remove the cover of the Aurora inverter (screw pos. "A" of Fig. 11) in order to gain access to the terminal block board. Step 2: Lay down the cables between the Aurora inverter and the outside passing trough the provided holes and cable glands on the Inverter.

  • Page 49: Ground Fuse Replacement

    Installation and Operation Manual Page 49 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Perform the selection of the grid standard basing on the following table Left selector Right selector Grid standard Display language Default English VDE (Germany) German UL - 208 Single Phase English UL - 240 Split Phase English...

  • Page 50: Disconnecting The Aurora Inverter From The Dc Switch Box

    Installation and Operation Manual Page 50 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Aurora units grounding mode is identified by PN; -xx-PG indentify a unit with Positive Grounding while -xx-NG a unit with Negative Grounding. NOTE: Choose the PN in order to fulfil plant requirements.

  • Page 51: Cr2032 Lithium Battery Replacement

    Inverter, ALWAYS perform the disconnection procedure as explained in section 3.3.1 or 3.3.2 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.
  • Page 52 Installation and Operation Manual Page 52 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) To insert the new battery into the battery holder the battery needs to be slid at a 30° angle as shown in Fig. 20, and when pushed in on insertion it should seat into the correct position within the holder.

  • Page 53: Starting Up And Switching The Inverter Off

    Page 53 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) STARTING UP AND SWITCHING THE INVERTER OFF 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.

  • Page 54: Start-Up Using Side Button

    • Grid frequency value and status compared to specified values (within/outside range). 4) When the connection sequence is completed, AURORA starts operating; proper operation is indicated by a warning sound and the green LED staying on steady. 5) If the grid check routine does not give a positive result, the unit will repeat the procedure until all grid voltage and frequency parameters and grid configuration are found to be within the specified range.

  • Page 55: Shut-Down Procedure

    Installation and Operation Manual Page 55 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 21 - Stand by supply key Shut-Down Procedure There are three options for shutting down the inverter: 1) Disconnect the DC and the AC grid, by disconnecting their disconnect devices (in any order).

  • Page 56: User Interface, Monitoring And Data Transmission

    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), AURORA disconnects automatically and goes into standby mode. The operating cycle is resumed automatically the moment solar radiation becomes strong enough.
  • Page 57 Installation and Operation Manual Page 57 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Fig. 22 - Data Transmission Options...

  • Page 58: Data Types Available

    Installation and Operation Manual Page 58 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Data Types Available AURORA provides two types of data that can be collected using the display and/or the appropriate interface software. 5.1.1 Real-Time Operational Data Real-time operational data can be transmitted on demand through the communication lines and are not stored inside the inverter.

  • Page 59: Internally Logged Data

    Page 59 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.1.2 Internally Logged Data AURORA stores the following data internally: Total and partial counter of grid connection time Total and partial counter of energy transferred to the grid Energy produced daily (365 values)

  • Page 60: Led Indicators

    In this condition, the display will read 'Waiting 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.
  • Page 61 It is in transition status while yellow: settings loading, and operating conditions are being red: waiting for grid check checked. green: AURORA is powering Standard machine operation yellow: the grid (search for maximum power red: point or constant voltage) green:...
  • Page 62 NOTE: Inverter status is indicated by the corresponding LED turning to a steady on condition or flashing, and by a message on the AURORA LCD displaying a description of the existing operation or fault condition (see the following sections).
  • Page 63 When the red LED turns on, try to reset the fault indication by pressing the multi-function ESC key at the side of the LCD display. If AURORA reconnects to the grid, the fault was due to a transient event (such as condensation and moisture getting into the panels).
  • Page 64 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) system repaired. 5) Malfunction/Fault indication Every time the AURORA inverter's check system detects an operating 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 display.

  • Page 65: Messages And Error Codes

    This appearance of an alarm signal 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.
  • Page 66 Installation and Operation Manual Page 66 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Message Error Error Description Warning Type Grid Fail W003 Grid Fail Int.Error E010 Bulk Low Int.Error E011 Ramp Fail DC/DC Fail E012 DcDc Error revealed by inverter Wrong Mode E013 Wrong Input setting (Single instead of dual) or wrong grounding mode...
  • Page 67 Installation and Operation Manual Page 67 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Message Error Error Description Warning Type Int.Error E030 Ileak Measures Fault Int.Error E031 Wrong V Measure Int.Error E032 Wrong I Measure Empty Table W009 No wind table (only wind -W versions) Fan Fail W010 Fan Fail (No disconnection)

  • Page 68: Lcd Display

    Installation and Operation Manual Page 68 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) LCD Display 5.4.1 Connection of the System to the Grid The two-line LCD display is located on the front panel and shows: Inverter operating status and statistics; Service messages for the operator; Alarm and fault messages.

  • Page 69: Error Messages

    Installation and Operation Manual Page 69 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 4) Shows the instant output voltage value and whether it is within/outside range. Vgrid 223.8 V In range 5) Displays the instant output frequency value and whether it is within/outside range. Fgrid 50.17 Hz In range...

  • Page 70: First Phase - Electric Parameter Check

    Installation and Operation Manual Page 70 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Once the error has been removed, the inverter resets all functions in progress and re- starts the connection (Sect. 5.5.2 Connection of the system to the grid, item 2). - Missing grid - Waiting sun 5.4.3...
  • Page 71 Installation and Operation Manual Page 71 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) E-da: Daily energy output. $-da: Daily energy savings. The value is expressed in the set currency. E-tot ------------- E-par 0 KWh EUR E-tot: Total energy output (since first installation) E-par Partial energy output during the period selected by us P-out...
  • Page 72 Installation and Operation Manual Page 72 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Vin1 I in1 0.0 A Vin1: Instant input voltage value measured at channel 1 input Iin1: Instant input current value measured at channel 1 input 10A) Vin2 I in2 0.0 A Vin2: Instant input voltage value measured at channel 2 input Iin2: instant input current value measured at channel 2 input...

  • Page 73: Main Menu

    Installation and Operation Manual Page 73 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Riso 20.0 Mohm Riso: Measured insulation resistance. Unlike the parameters described above, this is not an instant value but a one-of-a-kind measurement taken at inverter start-up. The Riso measurement is only taken in the case of a configuration without grounding and with channels in parallel.

  • Page 74: Statistics

    Installation and Operation Manual Page 74 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) A FEW POINTERS ON DISPLAY KEY OPERATION: - Press the UP (2 key from display) and DOWN keys (3 key from display) to scroll through items. - Press the ESC key (1 from display) to go back to the previous session described in section 5.5.3.

  • Page 75: Partial

    Installation and Operation Manual Page 75 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.4.5.2 Partial Select Partial to view the following information: Time E-par Ppeak Val. Time: Total operation time since the counter was last reset * E-par: Total energy produced since the counter was last reset * PPeak: Maximum peak power measured since the 'partial' counter was activated Val.

  • Page 76: Last 7 Days

    Installation and Operation Manual Page 76 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.4.5.4 Last 7 days Select Last 7 Days to view the following information: E-7d Val. E-7d: Total energy output over the last 7 days Val. : Economic gain over the last 7 days CO2: CO saving over the last 7 days compared to fossil fuels 5.4.5.5...

  • Page 77: Last 365 Days

    Installation and Operation Manual Page 77 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.4.5.7 Last 365 Days Select Last 365 Days to view the following information: E-365 Val. E-365: Total energy output over the last 365 days Val. : Economic gain over the last 365 days CO2: CO saving over the last 365 days compared to fossil fuels 5.4.5.8...

  • Page 78: Settings

    Installation and Operation Manual Page 78 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.4.6 Settings Select 'SETTING' from the Main menu (section 5.5.4) to display the first screen, which refers to the password: Password **** The default password is 0000. It can be changed using the display keys in the usual way: 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)

  • Page 79: Address

    Installation and Operation Manual Page 79 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.4.6.1 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 64. Press the UP and DOWN keys to scroll numbers.

  • Page 80: Service

    Installation and Operation Manual Page 80 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 2) Contrast: Display light contrast Available display light tones go from 0 to 9. Press UP and DOWN keys to scroll the numbers and then press ENTER to confirm the selection.

  • Page 81: Time

    The start-up voltage for both input channels can be set according to the available photovoltaic system. The voltage can range from 120V to 350V. The default setting for Aurora is 200V. This parameter can be changed by means of the display keys. VStart1 200V When the independent input mode is selected it’s possible to set different start-up...

  • Page 82: Remote Control

    Remote Control This control is used to disable the inverter manual switch-off. Set as follows: - ENABLE, to activate the manual ON/OFF function - DISABLE to disable manual ON/OFF function, so that Aurora operation will only depend on external solar radiation.

  • Page 83: Uv Prot.time

    Installation and Operation Manual Page 83 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Remote ON/OFF Remote ON/OFF Enable Disable Manual ON and OFF input is read on the inverter digital input. When +R and –R are shorted the inverter shut off. When set to OFF, the display will cycle through the following screens: Remote OFF Waiting Rem.ON…...

  • Page 84: Alarm Message

    Installation and Operation Manual Page 84 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) This function is used to set the time interval for system maximum multiple scan. The default setting is 15 minutes. Scan Interval 15 min 5.4.6.13 Alarm Message Use the following procedure to program the error message shown on the display: Alarm message Press the ENTER key to open the relevant submenu Enable / Disable...
  • Page 85 Installation and Operation Manual Page 85 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Select COMPOSE MESSAGE and you will be able to write the first line of the message. Message row 1: - - - - - - - - - - - - - - - - The maximum number of characters that can be used is 16.

  • Page 86: Info

    (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 5.4.7 Info This menu is used to display all Aurora data, the grid standard and chosen language by means of the special selectors. Part No. (part number) Serial No. – Wk – Yr (serial number, week, year)

  • Page 87: Data Check And Communication

    Installation and Operation Manual Page 87 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) DATA CHECK AND COMMUNICATION Connection through RS-485 Serial Port or RJ12 Connectors 6.1.1 RS-485 Serial Port The RS-485 serial port uses a three-wire cable: Two wires are for signals and the third is for ground connection.
  • Page 88 Installation and Operation Manual Page 88 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) RJ45 No.1 RJ45 No.2 Fig. 27 - Terminals for connection to RS-485 and S2 switch 6.1.2 RJ45 Connectors As an alternative to RS485 serial connection, whether using single units or a daisy chain, inverter connection can be performed by means of RJ45 connectors (see Fig.

  • Page 89: Rj45 Connectors

    Not Used Daisy Chain The RS-485 terminal block or RJ45 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 is 64. The recommended maximum length of this chain is 1,200 metres.
  • Page 90 Please note that these other equivalent commercial devices could require external termination impedance, which is not necessary for Aurora PVI-232485. The following diagram shows how to connect multiple units into a daisy chain configuration.

  • Page 91: Measurement Accuracy

    Installation and Operation Manual Page 91 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Measurement Accuracy Every measurement should consider possible errors. The tables below show the following information for each reading: the units of measurement; the range; the resolution. Name of Unit of Resolution Maximum measured...
  • Page 92 Installation and Operation Manual Page 92 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Name of Unit of Resolution Maximum measured measure- percentage of Display Value variable ment error Accumulated Energy 1 Wh energy Time counter Lifetime hh:mm:ss Partial time Partial hh:mm:ss counter Time...

  • Page 93: Troubleshooting

    Page 93 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) TROUBLESHOOTING AURORA inverters comply with the standards set for grid-tied operation, safety, and electromagnetic compatibility. Before the product is dispatched, various tests are carried out successfully, to ensure: functioning, protection devices, performance and durability.
  • Page 94 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Before contacting the service centre, we ask you to make the following information available in order to maximize the effectiveness of the intervention: INFORMATION ON AURORA NOTE: Information available directly from the LCD display AURORA model? Serial number?

  • Page 95: Technical Characteristics

    Installation and Operation Manual Page 95 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) TECHNICAL CHARACTERISTICS Input Values WARNING: The photovoltaic field and system wiring must be configured in such a way that the PV input voltage is less than the maximum upper limit independent of the type, the number, and the operating conditions of the chosen photovoltaic panels.
  • Page 96 Installation and Operation Manual Page 96 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 36 Cell Panels 48 Cell Panels 72 Cell Panels 21.6 28.8 43.2 22.0 29.4 44.0 22.4 29.9 44.9 22.8 30.5 45.7 23.3 31.0 46.5 23.7 31.6 47.3 24.1 32.1 48.2 24.5 32.7...
  • Page 97 Installation and Operation Manual Page 97 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Value Value Description PVI-3.8-I-OUTD PVI-4.6-I-OUTD Max. recommended 4,420 W 5,260 W DC power input Rated DC power input 4,000 W 4,840 W Rated input voltage 330 Vdc 330 Vdc Max.
  • Page 98 Installation and Operation Manual Page 98 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) NOTE: If the input current supplied by the photovoltaic field connected to the inverter is above the maximum usable value and the input voltage is within the allowed range, the inverter will not be damaged.

  • Page 99: Output Values

    Installation and Operation Manual Page 99 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Output values Value Value Description PVI-3.8-I-OUTD PVI-4.6-I-OUTD Rated output power 3,800 W 4,600 W Max. continuous output 4,200W/ 3,800W/ 5000W/ 5000W/ 5000W power 3,300W Grid voltage, maximum 183 to 304 Vac 183 to 304 Vac range 277V single phase or...

  • Page 100: Grid Protection Characteristics

    Installation and Operation Manual Page 100 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Grid Protection Characteristics Complies with: Anti-islanding protection CSA-C22.2 N.107.1-01 UL Std N.1741 General Characteristics Value Value Description PVI-3.8-I-OUTD PVI-4.6-I-OUTD Maximum efficiency 96.5% 96.5% Internal consumption on < 8 W <...
  • Page 101 Installation and Operation Manual Page 101 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) 100% % of Rated Output Power Fig. 29 - Efficiency curve PVI-3.8-I-OUTD 100% % of Rated Output Power Fig. 30 - Efficiency curve PVI-4.6-I-OUTD...

  • Page 102: Power Derating

    AURORA can thus decrease power output during certain periods of the day according to these parameters. In any case, AURORA ensures maximum power up to 122°F for PVI-4.6-I-OUTD, up to 140°F for PVI-3.8-I-OUTD provided it is not directly exposed to the sun.
  • Page 103 Installation and Operation Manual Page 103 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) Power Derating (parallel channels) 5000 4000 PVI-4.6 full power + 10% 3000 PVI-4.6 full power PVI-3.8 full power + 10% PVI-3.8 full power 2000 1000 Vin (V) Fig. 31 - Derating curve against input voltage – Both channels used Power Derating (single channel) 3000 2500...

  • Page 104: Installation And Operation Manual

    Installation and Operation Manual Page 104 of 104 (PVI-3.8/4.6-I-OUTD-US Rev.: 1.1) NOTE: The curve for parallel channel configuration shows an area of non- operation up to 90V, a linear derating area up to 170V (PVI-4.6), 140V (PVI- 3.8), an area of constant rated power and derating at high voltage starting from 470V.

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