® AURORA Photovoltaic Inverters INSTALLATION AND OPERATOR’S MANUAL Model number: PVI-2000-OUTD-UK Rev. 1.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 2 of 62 REVISION TABLE Document Revision Author Date 0 M. Trova Dec. 17, 2006 Change Description First release of the document SAVE THESE INSTRUCTIONS ! IMPORTANT SAFETY INSTRUCTIONS POWER-ONE: Reproduction and disclosure, even partially, of the contents of this manual are strictly forbidden without prior authorization of Power-One.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 3 of 62 IMPORTANT SAFETY INSTRUCTIONS This manual contains important safety and operational instructions that must be accurately understood and followed during the installation and maintenance of the equipment.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 4 of 62 USEFUL INFORMATION AND SAFETY STANDARD FOREWORD ¾ The installation of AURORA must be performed in full compliance with national and local standards and regulations ¾ AURORA has no internal user serviceable parts. For any maintenance or repair please contact the nearest authorized repair center. Please contact your reseller if you need to know the nearest authorized repair center.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 5 of 62 Electrical parts must not be mechanically damaged or destroyed (potential health risk). ELECTRICAL CONNECTION With the inverter powered, comply with all prevailing national regulations on accidents prevention. Electrical connections shall be carried out in accordance with the applicable regulations, such as conductor sections, fuses, PE connection.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 6 of 62 PVI-2000-OUTD-UK This document applies to the above-mentioned inverters, only. UK Fig.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 7 of 62 CONTENTS: 1 FOREWORD 1.1 PHOTOVOLTAIC ENERGY 2 SYSTEM DESCRIPTION 2.1 Main Elements of a PV System: “STRINGS and ARRAYS” 2.2 Data Transmission and Check 2.3 AURORA Technical Description 2.4 Protective Devices 2.4.1 Anti-Islanding 2.4.2 Panel Ground Fault 2.4.3 Further Protective Devices 3 INSTALLATION 3.1 Package Inspection 3.2 Package Check List 3.3 Choosing Installation Location 3.4 Wall Mounting 3.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 8.2 8.3 8.4 8.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 1 Page 9 of 62 FOREWORD This document contains a technical description of the AURORA photovoltaic inverter so as to provide the installer and user all the necessary information about installation, operation and use of AURORA. 1.1 PHOTOVOLTAIC ENERGY Industrialized countries (greater energy consumers) have been experimenting with energy-saving methods and reducing pollutant levels.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 2 Page 10 of 62 SYSTEM DESCRIPTION AURORA is an inverter able to feed energy to the electrical power distribution grid. Photovoltaic panels transform the solar radiation into electrical energy in the form of direct (Dc) current (through a photovoltaic field, also known as PV generator). In order to utilize this energy and feed it back to the distribution grid, this energy shall be turned into alternating (Ac) current.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 11 of 62 PV Cell + PV Panel PV String + + _ PV Array _ _ Fig.2 Array Composition Array voltage value shall be within an acceptable range for the inverter. Please refer to the technical data for the AURORA for details on the Dc operating voltage range (see Section 8.1 “Input Values” for more details). WARNING: String voltage shall not exceed 600Vdc for any reason, so as to avoid damage to the equipment.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 12 of 62 The total current of an array must also be within the capability limits of the inverter. The 2000W model of AURORA is capable of handling a single array. For AURORA the maximum input current shall not exceed 10Adc.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 2.3 Page 13 of 62 AURORA Technical Description Figure 4 shows a block diagram of AURORA. The main blocks are the input DcDc converter (called booster) and the output inverter. Both the Dc-Dc converter and the output inverter work at high switching frequency to minimize size and weight. This model of AURORA is transformer-less, that means that there is no galvanic isolation between input and output.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 14 of 62 The AURORA operating system performs inter-process communication checks to ensure the entire unit operates properly. This process ensures optimal performance levels of the whole unit, as well as a high efficiency under all solar radiation and load conditions, always in full compliance with the applicable directives, standards and regulations. 2.4 2.4.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 2.4.3 Page 15 of 62 Further Protective Devices AURORA is equipped with additional protections to guarantee safe operation under all circumstances. The protections include: ¾ Continuous monitoring of the grid voltage to ensure the frequency and voltage values are within the proper operational limits; ¾ Control of the internal temperatures to automatically drive the speed of the external cooling fan.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) ¾ ¾ ¾ 3.2 Page 16 of 62 action. They may require an inspection. Save all shipping material for the inspector to see! If the inspection reveals damage to the inverter call your supplier, or authorized distributor. They will determine if the equipment should be returned for repair. They will also provide instructions on how to get the equipment repaired; It is your responsibility to file a claim with the delivery carrier.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 3.3 Page 17 of 62 Choosing Installation Location The location for the installation of AURORA should be selected in accordance to the following recommendations: ¾ AURORA should be placed at a suitable height from ground to allow easy reading of the front display and the status LEDs. ¾ Leave enough room around the unit to allow easy installation and maintenance.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 3.4 Page 18 of 62 Wall Mounting AURORA should be mounted in a vertical position as shown in figure 7. NOTE: AURORA ratings are based on a vertical mounting position. Although it is possible to mount AURORA in a tilted position, the thermal performance in that case may be de-rated. In any case avoid mounting AURORA with the front plate rotated, always make sure that the fins of the front heatsink are vertical.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 19 of 62 Install the expansion screws in the wall so that the head of the screws is about 4mm (~1/6”) from the wall surface. Then hang AURORA on the wall by fitting the screw heads in the mounting slots as shown in Fig.7, and secure the screws. Fig.7 AURORA wall mounting It is possible to mount AURORA in a tilted position.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 20 of 62 RECOMMENDED ASSEMBLING Fig.8 Aurora, recommended assembling It is recommended that the unit is not placed in direct sunlight. WARNING: During operation, inverter surface can reach very high temperatures. DO NOT touch inverter surface to prevent the risk of burns. NO Derating -5° Derating 0° Derating 5° Derating Fig.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 3.5 Page 21 of 62 Preliminaries to Electrical Connections WARNING: The electrical connections can be done only after AURORA is firmly mounted to the wall. WARNING: The connection of AURORA to the electrical distribution grid must be performed only by skilled operators and after having received authorization from the utility that operates the grid.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) PV Array Page 22 of 62 DC Disconnect AC Disconnect Rating 10A/600Vdc Rating 10A/240Vac Grid Load Center Fig.10 General wiring diagram CAUTION: To reduce the risk of fire, connect only to a circuit provided with 10A maximum branch circuit overcurrent protection. WARNING: Always open the AC disconnect breaker before to open the DC disconnect. WARNING: All power wires connecting AURORA must have a section of at least 14 AWG (2.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 23 of 62 The AURORA must be installed using watertight wiring methods. The connections available on the bottom of the inverter, from left to right (see Fig. 11): ¾ ¾ ¾ ¾ 1 watertight cap. This cap can be replaced by the PG16,5 cable gland supplied with the inverter to route the signal cable for RS485 serial link. 1 Binder type connector for AC mains connection. 1 pair of Multicontact connectors, for the connection of the PV array (IN1).
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 3.6 Page 24 of 62 Electrical connection Step 1/5: Open the Ac disconnect switch or circuit breaker and lockout the Ac disconnecting means. Step 2/5: Open the Dc disconnect switch of the Photovoltaic array Step 3/5: Verify there is no voltage on the connection terminals.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 25 of 62 WARNING: carefully respect the Phase and Neutral connection position (do not reverse it!) as this may impact on the safety of the system and lead to malfunctioning of the inverter. NOTE: In case your system has an additional kW-hour meter installed between the Ac disconnect and AURORA, please apply the Ac connection procedure to the terminals of the meter.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 3.7 Page 26 of 62 Access to the terminal blocks by removing the right side panel WARNING: To avoid the risk of electric shock from energy stored in capacitors. Wait 5 minutes after disconnecting both Ac and Dc connections before opening the side panel. To remove the side panel unscrew it using the Torx TX20 wrench supplied with the inverter kit. Fig.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 4 Page 27 of 62 START-UP NOTE: do not lay any object on AURORA during operation. WARNING: do not touch the heatsink during operation, some parts could be very hot and cause serious burns. To start up AURORA switch the external Dc disconnect on the ON position. 1) Switch the Ac disconnect to the ON position.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 5 5.1 Page 28 of 62 MONITORING AND DATA TRANSMISSION User’s Interface Mode WARNING: RS-485 cable must ensure a protection and insulating voltage rating of at least 600V. The AURORA inverter usually works automatically and is maintenance-free.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Fig.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 5.2 Page 30 of 62 Available Data AURORA provides two sets of data that are accessed using AURORA interface software. 5.2.1 Real time data The real time operating data can be transmitted on request over the communication lines and is not recorded internally by the AURORA inverter. The AURORA interface software (AURORA Communicator) can be used to retrieve and store data on a PC computer.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) ¾ ¾ Page 31 of 62 Last 100 fault conditions with error code and time stamp Last 100 variations to the grid connection parameters with parameter code, new value. All data are available for transmission via the RS-485 link or PLM. In addition, the first two data of the list are displayed on the LCD. The AURORA Communicator software shall be used in order to download the internally stored data. 5.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 32 of 62 2 1 3 4 Fig.15 LED’s location The following table summarize all the possible LED activation configurations related to each AURORA inverter operating status.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) LEDs Status Operational Status Page 33 of 62 Remarks Power (Green): Fault (Yellow): GFI (Red): AURORA self-disconnection during nighttime Input voltage below 90 Vdc for both inputs Power (Green): Fault (Yellow): GFI (Red): AURORA initialization, load settings and waiting for grid check Input voltage above 200 Vdc also for one input only. It is a transition status while operating conditions are checked.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 34 of 62 G Y R 1) Night-time Mode AURORA is in the nighttime disconnection phase; this happens whenever the input power is too low to export power to the grid and power the inverter control system as well. G Y R 2) AURORA Initialization and Grid Check The unit is in the initialization phase: energy supply for the inverter control system is high enough.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 35 of 62 most probably a temporary reduction of the insulation resistance (for example the water seepage on the modules caused by condensation). It is recommended to call qualified personnel to perform an inspection of the installation in case this disconnection events are recurrent. If the fault cannot be reset, that is causing a ground fault or there is some other insulation breakdown.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 5.4 Page 36 of 62 Messages and Error Codes The system status is identified through message or error signals appearing on the LCD. The tables below summarize the two types of signals that can be displayed. MESSAGES identify the AURORA actual status; so they do not relate to faults and nothing has to be done.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 5.5 Page 38 of 62 LCD Display The 2-line LCD display is located on the front panel and shows: 9 the status of the inverter and statistical data; 9 service messages for the operator; 9 messages of faults or damages found. Data are shown cyclically, the screens change every 5 seconds. On the right of the display there is a button that when pressed freezes the screen. Pushing the button again unfreezes the screen.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 9 This screen shows the grid voltage and the related status (in range or out of range).
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 9 Third screen: measured insulation resistance and leakage current value. Riso Ileak 9 #mOhm Fourth screen: Output power and Voltage Input from the photovoltaic array Pac Vin 9 Page 40 of 62 ## W ## V Fifth screen: Total energy exported to the grid (E-Total) and total operating time (h-Total, that is time during which the unit was active). Both data are measured since the unit was first operated.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 9 Page 41 of 62 Seventh screen: Daily energy (E-Today) and mode of operation of the inverter (ModeInverter) E-Today ## Wh ModeInverter OK In case the inverter is not working properly the Fault or Ground Fault LEDs will turn on as described in paragraph 5.3, and the following three screens scroll on the LCD remaining on for 5 seconds.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 42 of 62 The sequence of the screens is summarized in the following figure: Grid fail Initializing...
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 6 6.1 Page 44 of 62 DATA CHECK AND COMMUNICATION RS-485 serial link The RS-485 link uses two wires for signals plus a third wire for signal grounding, which is different from the equipment grounding of the unit. The wires must be run in a watertight conduit through the bottom of the unit as explained in paragraph 3.5 after removing the watertight cap and installing a suitable watertight conduit connector.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 45 of 62 Up to 31 AURORA inverters can be connected on the same RS-485 line. The maximum recommend RS-485 cable length is 1300 yards (1200 m). In case multiple inverters are daisy-chained to the same RS-485 line, then the last unit must be terminated by changing the position of the dip-switch shown in Fig.19 from OFF to ON. The default position of the switch is OFF. Also, each unit must have a different address. See par. 6.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 46 of 62 Fig.17 Multiple units connection NOTE: up to 31 inverters can be connected to the same RS485 serial link. Although any address in the range from 2 to 63 can be selected, we recommend to set the inverter addresses in the range 2 to 33 for the RS485 serial link.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 6.2 Page 47 of 62 Power Line Modem (PLM) An optional Power Line Modem card can be integrated in the AURORA inverter. This system allows to transmit and receive the data directly from the AC mains cable, using advanced algorithms to improve communication performance and increase reliability of data transmission over noisy electrical lines.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 48 of 62 NOTE: the maximum number of inverters that can be connected via PLM is 63. NOTE: It is not possible to have more than one receiving equipment such as AURORA Easy Control data logger or AURORA PLM/RS232 interface box connected to the same transmission line.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 49 of 62 Fig.19: Data transmission to AURORA Easy Control 6.3 Display Menu When using PLM or the RS-485 serial link communication each unit must have a unique address. The default address of each unit is 2. When connecting multiple units on the same serial or PLM link a new address needs to be assigned to each unit to avoid communication errors.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 6.4 Page 50 of 62 Address information Addresses 0 and 1: are reserved for the host computers and monitoring accessories like the PLM modem and Easy Controller display unit. The RS-485 serial link uses addresses 2 through 32 The PLM link uses addresses 2 through 64 6.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 6.6 Page 51 of 62 Baud Rate setting 1) After the inverter address have been defined according to the procedure included in paragraph 6.5 or 6.6, if the button at the right side of the LCD is pushed continuously for at least 5 sec and then released the display menu enters in the Baud Rate setting.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Page 52 of 62 6) To confirm the selected baud rate that appear on the display keep the button firmly pushed for at least 5 sec. WARNING: In general the standard baud rate is at 19200. Only in case of long distance or noisy transmission lines it is recommended to slow down the baud rate.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 6.7 Page 53 of 62 Measurement accuracy All measurement devices are affected by errors. For each reading the following table shows: ¾ Description and Unit of Measure ¾ Resolution and Accuracy Resolution Display Measure Maximum Error (%) Vdc 1V 600mV 2% IP Adc 0.1 A 15mA 2% PV Input Power Pin W 1W 10W 2% Output Voltage Vout V 1V - 2% Output Current Iout A 0.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 7 Page 54 of 62 TROUBLESHOOTING AURORA inverters comply with standards set for grid-tied operation, safety and electromagnetic compatibility. Before being delivered by Power-One, 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.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 8 8.1 Page 56 of 62 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. As panel voltage also depends on working temperature, the number of panels per string shall be chosen according to the min.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Max number of panels Panel voltage Max number of panels Panel voltage Max number of panels 72 Cells Panels Panel voltage 48 Cells Panels Minimum Panel Temp.[°C] 36 Cells Panels Page 57 of 62 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.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) Description Nominal input voltage Minimum input voltage to connect to the grid “Absolute Maximum Rating” for input voltage Input voltage, MPPT operating range Input voltage, MPPT range at full power Page 58 of 62 Value PVI-2000-OUTD-UK 360Vdc 200Vdc 600Vdc 90Vdc to 580Vdc 220Vdc to 530Vdc Max. short circuit current 12Adc Max. operating input current 10Adc Max.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 8.2 Page 59 of 62 Output Values Description Nominal Output Power AC voltage, max. operating range AC voltage, nominal Value PVI–2000–OUTD-UK 2000 W 180 Vac to 264 Vac 230 Vac AC voltage, operating range in acc. to UK G83\1 from 82% to 115% of nominal (188.6Vac to 264Vac / Vnom=230Vac) AC Frequency, max. operating range 47Hz to 53 Hz AC Frequency, nominal AC Frequency, operating range in acc. to UK G83\1 50 Hz 49.72Hz to 50.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 8.4 Page 60 of 62 General characteristics Description Maximum efficiency Internal consumption during stand-by Internal consumption during night time Operating ambient temperature Enclosure type Relative Humidity Audible Noise Size (height x width x depth): Weight Value PVI-2000-OUTD-UK 96% <8W < 0,30 W -25°C to +60°C (-13°F to 140°F) IP65 / Nema 4X 0 – 100 % condensing < 30dBA @1m with Fan off < 50 dBA @1m with Fan @ max.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev: 1.0) 8.5 Page 61 of 62 Power Derating To ensure inverter safe operation under any temperature and electrical condition, the unit will automatically derate the power to be delivered to the grid.
Installation and Operator’s Manual (PVI-2000-OUTD-UK Rev.: 1.
