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Power One AURORA PVI-OUTD-US Series Installation And Operator's Manual

Photovoltaic inverters
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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
Rev. 2.1

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  • Page 1 ® 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 Rev.
  • Page 2 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 19-Nov-07 12-Jan-09 17-Mar-09 Certificate of Compliance added 26-Jun-09 Modified allowed cable section according to normative SAVE THESE INSTRUCTIONS! IMPORTANT SAFETY INSTRUCTIONS...
  • Page 3 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.
  • Page 4 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.
  • Page 5 Installation and Operator’s Manual Page 5 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) ASSEMBLY • Devices should be assembled and cooled according to the specifications mentioned in their corresponding documents. • In particular, during transport and handling, parts should not be bent and/or the insulation distances should not be changed.
  • Page 6 Installation and Operator’s Manual Page 6 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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) Manufacturing Part Number 2) Model Number 3) Serial Number...

  • Page 7: Table Of Contents

    Installation and Operator’s Manual Page 7 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) CONTENTS FOREWORD ................10 PHOTOVOLTAIC ENERGY ..............10 SYSTEM DESCRIPTION ............11 : “STRINGS” EY ELEMENTS OF A PHOTOVOLTAIC SYSTEM “ARRAYS” ......................13 .............15 RANSMISSION AND HECK ............15 URORA ECHNICAL ESCRIPTION ................16 ROTECTIVE EVICES 2.4.1 Anti-Islanding ..................16...
  • Page 8 Installation and Operator’s Manual Page 8 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) MONITORING AND DATA TRANSMISSION...... 51 ’ ................. 51 NTERFACE ..................54 VAILABLE 5.2.1 Real-time operational data..............54 5.2.2 Internally logged data ................55 ..................56 INDICATORS ..............59 ESSAGES AND RROR ODES LCD D...
  • Page 9 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 ............78 5.5.8 Info......................79 DATA CHECK AND COMMUNICATION......81 RS-485 RJ12 ..81 ONNECTION THROUGH SERIAL PORT OR CONNECTORS 6.1.1 RS-485 serial port..................81 6.1.2 RJ12 connectors..................84 6.1.3 Daisy chain ....................85 ............87 ERIAL CONNECTION WITH PORT...

  • Page 10: Foreword

    Installation and Operator’s Manual Page 10 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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. PHOTOVOLTAIC 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.

  • Page 11: System Description

    Installation and Operator’s Manual Page 11 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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).
  • Page 12 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. 1a. Fig.1a – Schema funzionale inverter con DC switch integrato. Fig. 1b - Block diagram of inverters model without integrated DC switch...

  • Page 13: Key Elements Of A Photovoltaic System: "Strings" And "Arrays

    Installation and Operator’s Manual Page 13 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 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.
  • Page 14 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. NOTE: A minimum input voltage of 200 Vdc is required for the Aurora inverter to start the grid connection sequence.

  • Page 15: Data Transmission And Check

    Installation and Operator’s Manual Page 15 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.

  • Page 16: Protective Devices

    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.

  • Page 17: Additional Protective Devices

    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 is equipped with additional protections to guarantee safe operation under any circumstances. The protections include: • constant monitoring of grid voltage to ensure that voltage and frequency remain within the specified operational limits (in accordance with UL 1741 standard).

  • Page 18: Installation

    Installation and Operator’s Manual Page 18 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) INSTALLATION 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). WARNING: The connection of an Aurora inverter to the electrical distribution grid must be performed only after receiving authorization from the utility that operates the grid.

  • Page 19: Inspecting Package Contents

    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 Bag containing: 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 Certificate of warranty CD-ROM with communication software...
  • Page 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...
  • Page 21 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. WARNING: The inverter surface may become hot to the touch during operation.
  • Page 22 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.
  • Page 23 Installation and Operator’s Manual Page 23 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Fig. 8a - MP-01 –Wall Bracket 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.

  • Page 24: Before Performing The Electrical Connections

    Installation and Operator’s Manual Page 24 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Before Performing the Electrical Connections WARNING: Before performing any operation on the Switch Box power input, ALWAYS PERFORM "Switch ELECTRICAL DISCONNECTION PROCEDURE" as explained in section 3.4.1 of this manual.
  • Page 25 Installation and Operator’s Manual Page 25 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) On 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.

  • Page 26: Switch Box Electrical Connecting And/Or Disconnecting Procedure

    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 FOLLOW EACH STEP THIS PROCEDURE WARNING: 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.
  • Page 27 Installation and Operator’s Manual Page 27 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.

  • Page 28: Removing The Front Cover And Accessing The Internal Terminal Block

    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 ELECTRICAL DISCONNECTION OF THE perform the " INVERTER FROM THE SWITCH BOX PROCEDURE" located and described in section 3.4 1.

  • Page 29: Aurora Switch Box Description

    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 Fig. 11 - SB-01 – DC Switch Box Layout Pos. Fig. SB-01 Description DC and AC Power cable knockouts – SIZE: G1" Silkscreen "ON" / "OFF" DC Switch Signal cable entries –...
  • Page 30 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.
  • Page 31 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 Details Terminal Block AC OUT DIN bars for accessories Grid Standard Table Main Ground - Max Wire Size = AWG# 4 (Refer to local code for minimum wire size) Ground DC IN Terminal Block...
  • Page 32 Installation and Operator’s Manual Page 32 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) WARNING: In order to thighten correctly the screw terminal of the switch 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).
  • Page 33 Installation and Operator’s Manual Page 33 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) WARNING: In order to thighten correctly the screw terminal of the inverter 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).

  • Page 34: Aurora Inverter Typical Electrical Installations

    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.

  • Page 35: Possible Aurora Dc Input Configuration

    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”.

  • Page 36: Aurora Inverter - Connection To A Single Photovoltaic Array

    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).

  • Page 37: Parallel Connection Of The Aurora Dc Inputs

    Installation and Operator’s Manual Page 37 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Fig. 12 - Short Circuit on IN2 Channel 3.3.5.2 Parallel Connection of the Aurora DC inputs WARNING: Before performing the following instructions, ALWAYS perform the “AURORA ELECTRICAL DISCONNECT PROCEDURE” described in section 3.3.1 of this manual.
  • Page 38 Installation and Operator’s Manual Page 38 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) WARNING: When the inverter is configured with parallel input the current to the 2 input terminals in the Switch Box– rif.: " ± IN1 " e "± IN2 " in fg. "13 / A –...
  • Page 39 Installation and Operator’s Manual Page 39 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.

  • Page 40: Connection To The Ac Grid

    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 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.
  • Page 41 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").

  • Page 42: Connection Of Rs485 And Alarm Contact

    Installation and Operator’s Manual Page 42 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Table CN-01 – AC Grid Connections (*) 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.
  • Page 43 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.
  • Page 44 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 Alarm cable Output cables 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. (*) IMPORTANT: In case of inverter without the Switch Box, follow the same cabling approach for signal and communication cables as shown in fig.
  • Page 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...

  • Page 46: Disconnecting The Aurora Inverter From The Dc Switch

    Installation and Operator’s Manual Page 46 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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...
  • Page 47 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".

  • Page 48: Cr2032 Lithium Battery Replacement

    Installation and Operator’s Manual Page 48 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.

  • Page 49: Start-Up

    Installation and Operator’s Manual Page 49 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.
  • Page 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.

  • Page 51: Monitoring And Data Transmission

    Installation and Operator’s Manual Page 51 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) MONITORING AND DATA TRANSMISSION User’s Interface Mode 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.
  • Page 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...
  • Page 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...

  • Page 54: Available Data

    Installation and Operator’s Manual Page 54 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.

  • Page 55: Internally Logged Data

    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: • Lifetime counter of grid connection time • Lifetime counter of energy transferred to the grid • Energy transferred to the grid every 10 seconds for the last 8640 periods of 10 seconds (which on average cover more than 2 days logged data) •...

  • Page 56: Led Indicators

    Installation and Operator’s Manual Page 56 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.
  • Page 57 Installation and Operator’s Manual Page 57 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) KEY: LED on LED blinking LED off Any one of the above conditions LEDs Status Operational Status Remarks green: Aurora self-disconnection Input voltage less than 90 yellow: during nighttime Vdc at both inputs red: green:...
  • Page 58 Installation and Operator’s Manual Page 58 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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).

  • Page 59: Messages And Error Codes

    Installation and Operator’s Manual Page 59 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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. 6) RS-485 address setup indication During installation, the yellow LED will keep flashing until the address is acknowledged.
  • Page 60 Installation and Operator’s Manual Page 60 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Message Warning Error Description type Sun Low W001 Input Voltage under threshold Input voltage under threshold (when off) Input OC E001 Input Overcurrent Input UV W002 Input Undervoltage Input OV E002 Input Overvoltage Int.Error...
  • Page 61 Installation and Operator’s Manual Page 61 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Message Warning Error Description type Z Grid HI W008 Z grid out of range Impedance outside range Int.Error E024 Unknown Error – Internal Error --------- E025 Riso Low (Log Only) Low insulation resistance (Log only) Int.Error E026...

  • Page 62: Lcd Display

    Installation and Operator’s Manual Page 62 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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: Inverter operating status and statistics; Service messages for the operator; Error messages and fault indications.

  • Page 63: Error Messages

    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. Fgrid 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) - Vgrid (screen 4)

  • Page 64: First Phase - Electric Parameter Check

    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 from display).
  • Page 65 Installation and Operator’s Manual Page 65 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) E-tot ------------- E-par 0 KWh E-tot: Lifetime energy output (since first installation) E-par Partial energy output (during selected period) P-out T-inv °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 Ppk Day ………..W...
  • Page 66 Installation and Operator’s Manual Page 66 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 10A) Vin2 I in2 0.0 A Vin2: Instant input voltage measured at channel 2 input Iin2: Instant input current measured at channel 2 input I in 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)..

  • Page 67: Main Menu

    Installation and Operator’s Manual Page 67 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 13A) 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 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.

  • Page 68: Statistics

    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;...

  • Page 69: Partial

    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 E-par Ppeak Val. 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 *...

  • Page 70: Last Month

    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 Val. 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:...
  • Page 71 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 28 August Use the display keys to set the start and end date of the period as follows: Use ENTER to move from one field to the next (from left to right) Use ESC to go back to the previous field (from right to left) Press ESC repeatedly to go back to the previous menus as described in section 5.5.3...

  • Page 72: Settings

    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 **** 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...

  • Page 73: Address

    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.

  • Page 74: Service

    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...

  • Page 75: Language

    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 Language It is 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.

  • Page 76: 5.5.7.10 Alarm

    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.

  • Page 77: 5.5.7.11 Remote Control

    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 is connected to the grid (contact closing across terminals “N.O.”...

  • Page 78: 5.5.7.12 Uv Prot. Time

    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.

  • Page 79: Info

    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: Part No. (part number) Serial No. – Wk – Yr (serial number, week, year) Fw rel (firmware release level)
  • Page 80 Installation and Operator’s Manual Page 80 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)

  • Page 81: Data Check And Communication

    Installation and Operator’s Manual Page 81 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) DATA CHECK AND COMMUNICATION Connection through RS-485 serial port or RJ12 connectors 6.1.1 RS-485 serial port RS-485 serial port uses a three-wire cable: two wires are for signals and the third one is for a ground connection.
  • Page 82 Installation and Operator’s Manual Page 82 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) RS485 Alarm 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.
  • Page 83 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...

  • Page 84: Rj12 Connectors

    Installation and Operator’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).

  • Page 85: Daisy Chain

    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 is 248.
  • Page 86 Installation and Operator’s Manual Page 86 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Fig. 25 - Daisy Chain Multiple Connection When using an RS-485 link there can be up to 248 inverters connected NOTE on the same link. Choose any address between 2 and 248. When using the RS-485 link, in case one or more inverters are added NOTE later to the system, please remember to switch the DIP-switch of the former...

  • Page 87: Serial Connection With Usb Port

    Installation and Operator’s Manual Page 87 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.

  • Page 88: Measurement Accuracy

    Installation and Operator’s Manual Page 88 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Measurement Accuracy Every measure should consider possible errors. The following tables show for each reading: measurement units; capacity; resolution Name of Resolution Maximum measured Unit of error Display Value variable Measure percentage...

  • Page 89: Troubleshooting

    Installation and Operator’s Manual Page 89 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.
  • Page 90 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 NOTE: Information to be found directly on LCD Aurora model? Serial number? Week of production? LED flashing? Light blinking or steady? Signal displayed? Malfunction short description?

  • Page 91: Technical Features

    Installation and Operator’s Manual Page 91 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) TECHNICAL FEATURES 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 independently from the type, the number, and the operating conditions of the chosen photovoltaic panels.
  • Page 92 Installation and Operator’s Manual Page 92 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 36 Cells Panels 48 Cells Panels 72 Cells 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 93 Installation and Operator’s Manual Page 93 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Value Value Value Description PVI–3-0-OUTD PVI–3.6-OUTD PVI–4.2-OUTD Max. reccomended 3500 W 4150 W 4820 W DC power input Nominal DC power 3120 W 3750 W 4380 W input Nominal input 360 Vdc 360 Vdc 360 Vdc...

  • Page 94: Output Values

    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 Input channels poles or configuration Two channels in parallel (1) The total input power shall not exceed the max. Recommended DC power NOTE: If the input current supplied by the photovoltaic field connected to the inverter is above the max.

  • Page 95: Grid Protection Characteristics

    Installation and Operator’s Manual Page 95 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) current Arms Arms Arms Max. output 12/14.5/14.5 16/17.2/17.2 20/20/20 Arms current Arms Arms Output over 15/20/20 Arms 20/25/25 Arms 25/25/25 Arms current protection Grid protection characteristics Complies with: Anti islanding protection - UL 1741 standard.
  • Page 96 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 0 – 100 % 0 – 100 % 0 – 100 % Relative Humidity 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) Fig.
  • Page 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...

  • Page 98: Backfeed Current

    Installation and Operator’s Manual Page 98 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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: • Booster Stage (DC-DC converter) connected to DC Input Terminals. • Inverter Stage (DC-AC converter) connected to AC Output Grid Terminals.

  • Page 99: Voltage And Frequency Limits

    Installation and Operator’s Manual Page 99 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Voltage and frequency limits The UL1741 requires, for voltage and frequency, the following limits for utility interaction: Condition Simulated utility source Maximum time (sec) at 60 Hz Voltage (V) Frequency (Hz) before cessation of current to the...

  • Page 100: Fault Current

    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 (sec) Voltage (V) Frequency (Hz) < 0.55 V Rated (60 Hz) 0.12 0.55 V ≤...

  • Page 101: Power Derating

    Installation and Operator’s Manual Page 101 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) PVI-3.0- 11.7 49.92 162.0 121.8 OUTD 10.6 49.92 139.7 118.9 Series 49.98 92.2 116.5 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.
  • Page 102 Installation and Operator’s Manual Page 102 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) Fig. 30...
  • Page 103 Installation and Operator’s Manual Page 103 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1) 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.
  • Page 104 Installation and Operator’s Manual Page 104 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
  • Page 105 Installation and Operator’s Manual Page 105 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
  • Page 106 Installation and Operator’s Manual Page 106 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
  • Page 107 Installation and Operator’s Manual Page 107 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
  • Page 108 Installation and Operator’s Manual Page 108 of 108 (PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)

This manual is also suitable for:

Aurora pvi-3.0-outd-usAurora pvi-3.6-outd-usAurora pvi-4.2-outd-usAurora pvi-3.0-outd-s-usAurora pvi-3.6-outd-s-usAurora pvi-4.2-outd-s-us

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