ABB UNO-2.0-I-OUTD Product Manual
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ABB UNO-2.0-I-OUTD Product Manual

Solar inverters 2.0 to 2.5 kw
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UNO-2.0/2.5-I-OUTD
(2.0 to 2.5 kW)

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  • Page 1 ABB solar inverters Product manual UNO-2.0/2.5-I-OUTD (2.0 to 2.5 kW)
  • Page 2 Operators are required to read this manual and scrupulously follow the indications reported in it, since ABB cannot be held responsible for damages caused to people and/or things, or the equipment, if the warranty conditions are not observed.
  • Page 3 3 - Safety and accident prevention 4 - Lifting and transport 5 - Installation 6 - Instruments 7 - Operation 8 - Maintenance UNO-2.0_2.5-I-OUTD-Product manual EN Rev D (M000003DG) EFFECTIVE 10/10/2014 © Copyright 2014 ABB. All Rights Reserved. - 3 -...

  • Page 4: Ntroduction And General Information

    ABB accepts no liability for failure to comply with the instructions for correct installation and will not be held responsible for systems upstream or downstream the equipment it has supplied.

  • Page 5: Table Of Contents

    1- Introduction and general information ontents ntroduction and general information ....................4 Warranty and Supply Conditions ......................4 Not included in the supply .......................4 Contents ..............................5 Reference number index ........................8 Graphical representation of references ....................8 The document and who it is for ......................9 Purpose and structure of the document .................9 List of annexes ........................9 Staff characteristics .........................9...
  • Page 6 1- Introduction and general information Residual risks ............................35 Table of residual risks ......................35 ifting and transport ........................36 General conditions ..........................36 Transport and handling .......................36 Lifting .............................36 Unpacking and checking ......................36 List of supplied components ....................37 Equipment weight .........................38 nstallation ............................39 General conditions ..........................39 Environmental checks ......................40 Installations above 2000 metres ...................40...
  • Page 7 1- Introduction and general information Dynamic behaviour of the display ..................65 LED behaviour ............................66 Specifications on the operation of the LEDs.................67 LED insulation fault .......................67 Description of the menus ........................68 General information ......................68 Statistics Menu ........................70 Settings Menu ........................72 Info Menu ..........................79 AUTOTEST procedure in accordance with standard CEI 0-21 ............80 Running the tests from the display menu ................80 aintenance .............................

  • Page 8: Reference Number Index

    1- Introduction and general information eference number index bracket service cable glands anticondensation valve inverter , DC disconnect switch , display AC cable gland locking screw , keypad , LED panel , front cover , AC output screw terminal block main board , DC input connectors , heat sink...

  • Page 9: The Document And Who It Is For

    1- Introduction and general information he document and who it is for urpose and structure of the document This operating and maintenance manual is a useful guide that will enable you to work safely and carry out the operations necessary for keeping the equipment in good working order.

  • Page 10: Symbols Ad Signs

    1- Introduction and general information ymbols ad signs In the manual and/or in some cases on the equipment, the danger or hazard zones are indicated with signs, labels, symbols or icons. Table: Symbols This points out that it is mandatory to consult the manual or original do- cument, which must be available for future use and must not be dama- ged in any way.

  • Page 11: Field Of Use, General Conditions

    1- Introduction and general information ield of use, general conditions ABB shall not be liable for any damages whatsoever that may result from incorrect or careless operations. You may not use the equipment for a use that does not conform to that provided for in the field of use.

  • Page 12: Haracteristics

    Characteristics eneral conditions A description of the characteristics of the equipment is given so as to identify its main components and specify the technical terminology used in the manual. Technical terminology and the fast retrieval system for information, are supported by: •...

  • Page 13: Models And Range Of Equipment

    The choice of the inverter model must be made by a qualified technician who knows about the installation conditions, the devices that will be installed outside the inverter and possible integration with an existing system. • UNO-2.0-I-OUTD MODELS UNO-2.0-I-OUTD: • Number of input channels: 1 •...

  • Page 14: Identification Of The Equipment And The Manufacturer

    3. Rating data 4. Certification marks DIN V VDE 0126-1-1 PROTECTIVE CLASS: I Made in Italy www.abb.com/solar MODEL: SOLAR INVERTER UNO-2.0-I-OUTD-S 520 V 230 V 1Ø dc max 90 - 520 V 50 Hz dc MPP 200 - 470 V 2000 W @ 50°C amb.
  • Page 15 The officially required information is located on the approval label. The identification label is an accessory label which shows the information necessary for the identification and cha- racterisation of the inverter by ABB. N.B. The labels must NOT be hidden with objects and extraneous parts (rags, boxes, equip- ment, etc.);...

  • Page 16: Inverter Components

    2 - Characteristics nverter Components For both of the inverter models (2 kW or 2.5 kW) two different set-ups are available: UNO-X.X-I-OUTD: Standard version UNO-X.X-I-OUTD-S: Version equipped with DC disconnect switch Standard version S Version 08 06 10 09 08 06 08 06 10 09 08 06...

  • Page 17: Characteristics And Technical Data

    2 - Characteristics haracteristics and technical data Table: Technical Data UNO-2.0-I-OUTD UNO-2.5-I-OUTD Input Absolute Maximum DC Input Voltage (Vmax,abs) 520 V Start-up DC Input Voltage (Vstart) 200 V (adj. 120...350 V) Intervallo Operativo di Tensione DC in Ingresso 0.7 x Vstart...520 V (Vdcmin...Vdcmax)
  • Page 18 2 - Characteristics Table: Technical Data UNO-2.0-I-OUTD UNO-2.5-I-OUTD Operating performance Maximum Efficiency (ηmax) 96.3% Weighted Efficiency (EURO/CEC) 95.1% / - 95.4% / - Power Input Treshold 24.0 W Stand-by Consumption < 8.0 W Communication Wired Local Monitoring PVI-USB-RS232_485 (opt.), PVI-DESKTOP (opt.) Remote Monitoring PVI-AEC-EVO (opt.), AURORA-UNIVERSAL (opt.)

  • Page 19: Tightening Torques

    2 - Characteristics ightening torques To maintain the IP65 protection of the system and for optimal installa- tion, the following tightening torques must be used: 2,2 Nm Front cover screws 5,0 Nm AC cable gland 2,7 Nm Service cable glands 1,5 Nm AC output screw terminal block 6 mm...

  • Page 20: Bracket Dimensions

    2 - Characteristics racket dimensions The overall dimensions are expressed in mm and in inches 295mm / 11.61” 220mm / 8.66” 18.5mm / 0.73” 50mm / 1.97” - 20 -...

  • Page 21: Efficiency Curves

    Graphs of the efficiency curves of all models of inverter described in this manual are shown below. The efficiency curves are linked to technical parameters that are continually being developed and improved and should therefore be considered approximate. UNO-2.0-I-OUTD Efficiency curves UNO-2.0-I-OUTD-S 100%...

  • Page 22: Power Derating

    The inverter can therefore reduce the power during certain periods of the day according to the value of these parameters. In any case, the inverter guarantees the maximum output power even at high temperatures, provided the sun is not shining directly on it. UNO-2.0-I-OUTD Pout Vs Tamb UNO-2.0-I-OUTD-S 100%(Pacr) Ambient temperature (°C)

  • Page 23: Power Reduction Due To The Input Voltage

    UNO-2.5-I-OUTD-S 100%(Pacr) Ambient temperature (°C) ower reduction due to the input voltage The graphs show the automatic reduction of supplied power when input voltage values are too high or too low. UNO-2.0-I-OUTD Pout Vs Vin UNO-2.0-I-OUTD-S 3000 2750 2500 2250...

  • Page 24: Characteristics Of A Photovoltaic Generator

    2 - Characteristics haracteristics of a photovoltaic generator A PV generator consists of an assembly of photovoltaic panels that tran- sform solar radiation into DC electrical energy and can be made up of: Strings: X number of PV panels connected in series Array: group of X strings connected in parallel trings and Arrays In order to considerably reduce the cost of installing a photovoltaic sy-...

  • Page 25: Description Of The Equipment

    2 - Characteristics escription of the equipment This equipment is an inverter that converts direct electric current from a photovoltaic generator into alternating electric current and feeds it into the national grid. Photovoltaic panels transform energy from the sun into direct current (DC) electrical energy (through a photovoltaic field, also called photovol- taic (PV) generator;...

  • Page 26: Connection Of Several Inverters Together

    A configuration program that can help to correctly size the photovoltaic system is available on the web site of ABB - 26 -...

  • Page 27: Functionality And Components Of The Equipment

    The inverter, or a network of several inverters, can also be monitored remotely through an advanced communications system based on an RS-485 serial interface. The range of optional ABB devices that can be connected to this communication line allows one to monitor the device locally or remotely via internet access.
  • Page 28 2 - Characteristics the grid and goes into SLEEP Mode. Sleep Mode This functionality turns off the inverter completely and the power absorp- tion is reduced to a minimum (0.6W). In this mode, the inverter allows display of the information available even in the absence of input voltage and therefore in the absence of sufficient irradiation of the photovoltaic panels.

  • Page 29: Topographic Diagram Of The Equipment

    2 - Characteristics opographic diagram of the equipment The diagram summarises the operation of the inverter. The main blocks are the DC-DC input converter (called “booster”) and the DC-AC output inverter. Both, work at a high switch-over frequency, and so are small and relatively light. This inverter is equipped with a high frequency transformer, in other words with galvanic isolation of the primary (DC side) from the seconda- ry (AC side), while maintaining very high performance in terms of output...
  • Page 30 2 - Characteristics - 30 -...

  • Page 31: Protective Devices

    2 - Characteristics rotective devices nti-Islanding In the event of a local grid outage by the electricity company, or when the equipment is switched off for maintenance operations, the inverter must be physically disconnected safely, to ensure protection of people work- ing on the grid, all in accordance with the relevant national standards and laws.

  • Page 32: Afety And Accident Prevention

    ABB accepts no liability for failure to comply with the instructions for correct installation are cannot be held responsible for the systems upstream or downstream of the equipment it has supplied.

  • Page 33: Hazardous Areas And Operations

    These conditions are reported on the thecnical data and on installation chapter. ABB CANNOT be held responsible for disposal of the equipment: displays, cables, batteries, accumulators, etc., and therefore the customer must...

  • Page 34: Thermal Hazard

    ABB has eliminated sharp edges and corners, but in some cases it is not possible to do anything, and we therefore advise wearing the clothing and personal protective devices provided by the employer.

  • Page 35: Residual Risks

    3 - Safety and accident prevention esidual risks Despite the warnings and safety systems, there are still some residual risks that cannot be eliminated. These risks are listed in the following table with some suggestions to prevent them. able of residual risks RISK ANALYSIS AND DESCRIPTION SUGGESTED REMEDY Noise pollution due to installation in unsuitable environments or where...

  • Page 36: Ifting And Transport

    ABB usually stores and protects individual components by suitable means to make their transport and subsequent handling easier, but as a rule it is necessary to turn to the experience of specialized staff in change of loading and unloading the components.

  • Page 37: List Of Supplied Components

    4 - Lifting and transport ist of supplied components Table: Components supplied with the equipment Components available for all models Quantity Connector for connecting the configurable relay Connector for the connection of the communication and control signals L-key, TORX TX20 Two-hole gasket for M20 signal cable glands M20 2 + 2 and cover...

  • Page 38: Equipment Weight

    4 - Lifting and transport quipment weight Mass (weight in kg) UNO-2.0 / UNO-2.5: 17 kg Lifting points: 2 If the package is stored correctly, it can withstand a maximum load of 6 pieces of equipment. DO NOT stack with equipment or products other than those indi- cated.

  • Page 39: Nstallation

    Installation eneral conditions Installation of the equipment is carried out based on the system and the place in which the equipment is installed; therefore, its performance depends on the correctness of the connections. Staff authorised to carry out the installation must be specialised and experienced in this job;...

  • Page 40: Environmental Checks

    5 - Installation nvironmental checks • Consult the technical data to check the environmental parameters to be observed (degree of protection, temperature, humidity, altitude, etc.) • The installation to direct sunlight must be avoid beacuse it may cause: - phenonmena of power limitation by the inverter (with consequent reduc- tion of energy production) - premature aging of electronic/electromechanical components - premature aging of mechanical components (gaskets) and user inter-...

  • Page 41: Installation Position

    5 - Installation nstallation position When choosing the place of installation, comply with the following condi- tions: • Install on a wall or strong structure suitable for bearing the weight. • Install in safe, easy to reach places. • If possible, install at eye-level so that the display and status LEDs can be seen easily.

  • Page 42: Wall/Pole Mounting

    5 - Installation all/Pole mounting 10 mm Ø During installation do not place the inverter with the front cover facing towards the ground. • Position the bracket 01 perfectly level on the wall and use it as a drilling template. •...

  • Page 43: Operations Preparatory To Pv Generator Connection

    5 - Installation perations preparatory to PV generator connection hecking the correct polarity of the strings Using a voltmeter, check that the voltage of each string observes the correct polarity and falls within the input voltage limits accepted by the inverter (see technical data).
  • Page 44 DC side”, considers isolation transformers that operate at low frequency (grid frequency). ABB inverters with a high frequency transformer are equipped with an iso- lation transformer for each of the DC/DC converters which operates at high frequency (switch-over frequency of the converter). This transformer allows for high frequency galvanic isolation between the DC and AC side of the system.

  • Page 45: Grounding Configuration Of The Dc Inputs

    5 - Installation rounding configuration of the DC inputs The grounding of the inputs is negative configuration by default. For the correct operation, some photovoltaic panels require the connec- tion of the potential of the positive terminal to the earth terminal, or to have both of the input poles floating in regards to ground potential.

  • Page 46: Installation Procedure For Quick Fit Connectors

    5 - Installation nstallation procedure for quick fit connectors On equipment models with which quick fit connectors are supplied, they may be supplied in two different types: CAUTION: To avoid damage to the equipment, when attaching cables, pay particular atten- tion to polarity.
  • Page 47 5 - Installation MULTICONTACT (or equivalents) Installation of Multicontact connectors requires crimping to be carried out with suitable equipment. - Strip the cable to which you want to apply the connector (after verifying that it complies with the connector limits) 4...6mm 5.5...9mm - Apply the terminal to the conductor using suitable crimping pliers...

  • Page 48: Grid Output Connection (Ac Side)

    Cross-section of the line con- Maximum length of the line conductor (m) ductor (mm UNO-2.0-I-OUTD UNO-2.5-I-OUTD The values are calculated considering an energy loss along the line (in rated power condi- tions) not exceeding 1%. The temperature rating of the line cable must be at least 20° C above the maximum expected ambient temperature.

  • Page 49: Load Protection Switch (Ac Disconnect Switch)

    (AC disconnect switch) To protect the AC connection line of the inverter, we recommend install- ing a device for protection against over current and leakage with the fol- lowing characteristics: UNO-2.0-I-OUTD UNO-2.5-I-OUTD Type Automatic circuit breaker with differential thermal magnetic protection...

  • Page 50: Main Board

    5 - Installation ain board Main board Ref. manual Ref. inverter Description J9 - J10 Input varistors Connector for floating ground of the inputs Connector for negative grounding of the inputs Connector for positive grounding of the inputs F1 - J25 J11 - J12 Output varistors Inverter data memory card housing...

  • Page 51: Connections Of The Signals To The Main Board

    5 - Installation onnections of the signals to the main board Each cable which must be connected to the connectors of the commu- nication and control signals must pass through the two service cable glands (shown in the picture). The available cable glands are two M20s that can take a cable with a diameter of 7 mm to 13 mm.

  • Page 52: Procedure For Connection To A Monitoring System

    5 - Installation Table: crimping scheme connectors RJ45 Pin N° Function +T/R -T/R 1, 2, 4, 6, 8 not used Use a connector with metal body to provide cable shield continuity! For long distance connections, the connection on terminal connector is preferable using a shielded twisted pair cable with characteristic imped- ance of Z0=120 Ohm like the one shown in the following table: Signal...

  • Page 53: Configurable Relay Connection

    5 - Installation If a single inverter is connected to the monitoring system, activate the termination resistance of the communication line by switching switch a10 (to ON position). Set a different RS485 address on each inverter of the chain. No inverter should have “Auto”...

  • Page 54: Remote Control Connection

    5 - Installation emote control connection The connection and disconnection of the inverter to and from the grid can be controlled through an external control. The function must be enabled in the relevant menu. If the remote control function is disabled, the switching on of the inverter is dictated by the presence of the normal parameters that allow the inverter to connect to the grid.

  • Page 55: Nstruments

    - there are doubts or contradictions between your experience, the manual and/or other operators. ABB cannot be held responsible for damage to the equipment or the operator if it is the result of incompetence, insufficient qualifications or lack of training.

  • Page 56: Display And Keyboard

    6 - Instruments isplay and keyboard isplay fields and symbols description Using the display, operating parameters for the equipment are shown. signals, alarms, channels, voltages, etc. The display, when in operation, behaves dynamically, allowing cyclical display of certain information (see relevant chapter). b02 b03 b04 Ref.

  • Page 57: Description Of Keyboard And Led Panel

    6 - Instruments escription of keyboard and LED Panel Using the combination of keyboard keys, under the display, it is possible to set values or scroll through the data items to view them. LED indica- tors are located alongside the keyboard, indicating the operating state of the inverter.

  • Page 58: Peration

    Operation eneral conditions Before checking the operation of the equipment, it is necessary to have a thorough knowledge of the INSTRUMENTS chapter and the functions that have been enabled in the installation. The equipment operates automatically without the aid of an operator; operating state is controlled through the instruments.

  • Page 59: Monitoring And Data Transmission

    • LCD display for displaying operating data • Data transmission on the dedicated RS-485 serial line. Data may be collected by a PC or a data logger with an RS-485 port. Contact the ABB support service with any queries about device compatibility.

  • Page 60: Standard Grid Setting Of The Country And Language Display

    7 - Operation tandard grid setting of the country and language display There are different grid parameters (dictated by the electricity distributor) according to the country in which the inverter is installed. Setting the grid standard for the country of installation is a necessary operation before com- missioning, and the installer must know the correct standard to be configured.

  • Page 61: Grid Standard Of The Country And Display Language Saving

    If it is necessary to change the standard of the country after the settings have been fixed (after 24 hours of operation) please contact ABB’s technical support department with the part number and serial number of the inverter to hand.

  • Page 62: Commissioning

    7 - Operation ommissioning Do not place objects of any kind on the inverter during operation! Do not touch the heatsink while the inverter is operating! Some parts may be very hot and cause burns. b02 b03 b04 The inverter commissioning procedure is as follows: NOTE: Before proceeding with •...
  • Page 63 7 - Operation • At this point the b17 icon will flash, this indicates the start-up of the DC- DC circuit (booster) part. This icon will remain permanently switched on when the DC-DC will be operating at steady state (the flashing of the icon usually lasts a few seconds).

  • Page 64: Display Access And Settings

    7 - Operation isplay access and settings After the commissioning of the inverter, it is possible/necessary to set the configuration of the inverter by accessing the “Account Settings” from the display. The following are the main adjustable parameters (see the section dedicated to the “Menu descriptions”) •...

  • Page 65: Dynamic Behaviour Of The Display

    30, 60 or 120 minutes. The vertical axis represents the maximum power derating (2.2kW for the UNO-2.0-I-OUTD and 2.75kW for the UNO-2.5-IOUTD) and therefore 100% corresponds to this outgoing exported power value. Finally, bear in mind that the power value expressed by each column of the graph represents the average value of the power during the period relating to the horizontal unit.

  • Page 66: Led Behaviour

    7 - Operation ED behaviour = LED On The following table shows all the possible activation combinations of LEDs = LED flashing on the LED panel according to the operating status of the inverter. = LED Off = Any one of the conditions described above LED status Operating state...

  • Page 67: Specifications On The Operation Of The Leds

    7 - Operation pecifications on the operation of the LEDs In correspondence to each status of the inverter indicated by the con- stant or intermittent lighting of the specific LED, the display , section b10, also shows a message identifying the operation which is being car- ried out or the defect/anomaly recorded (see specific chapter).

  • Page 68: Description Of The Menus

    7 - Operation escription of the menus has a section b10 (graphic display) for moving through The display the menu by using the buttons Section b10 consists of 2 lines with 16 characters per line and can be used to: •...
  • Page 69 Lun 22 Lug 15:55 Lun 22 Lug 15:55 DOWN DOWN Type: Outdoor inverter type (OUTD) Type OUTD P/N: ABB product identification code P/N -3xxx- DOWN S/N: Sequential serial number S/N XXXXXX FW rel. : Firmware version installed FW rel. XXXX...

  • Page 70: Statistics Menu

    7 - Operation tatistics Menu Selecting STATISTICS from the three main sub-menus gives access to: Statistics ENTER Total DOWN Partial DOWN Today DOWN Last 7 days DOWN Last month DOWN Last 30 days DOWN Last 365 days DOWN User Period 1.
  • Page 71 7 - Operation 4. Last 7 days This section of the menu displays the statistics for the last 7 days: • E-7d: Energy produced over the last 7 days • Val. : Value of production over the last 7 days, calculated using the cur- rency and conversion coefficient set in the relevant section of the SET- TINGS menu •...

  • Page 72: Settings Menu

    7 - Operation ettings Menu Selecting STATISTICS from the three main sub-menus brings up the first screen, asking for the password. The default password is "0000". This can be changed by using the display buttons, following the same procedure as always: •...
  • Page 73 7 - Operation 1. Address This section of the menu allows you to set the serial port addresses of the individual inverters connected to the RS485 line. The addresses that can be assigned are 2 to 63. The UP and DOWN buttons scroll through the numerical scale.
  • Page 74 7 - Operation Parameter Description Setting range Set Uconn> Max. permissible voltage during checks prior to grid connection Unom … Unom x 1.3 Set Uconn< Min. permissible voltage during checks prior to grid connection 10V … Unom Set Fconn> Max. permissible frequency during checks prior to grid connection Fnom …...
  • Page 75 We advise changing the activation voltage only if really necessary and to set it to the correct value: the photovoltaic generator sizing tool available on the ABB website will indicate whe- ther Vstart needs changing and what value to set it at.
  • Page 76 7 - Operation INVERTER RUN • Alarm with reset at the end of the alarm signalling process (display N.C. text “ALARM”): Relay State: Idle N.O. The relay is activated (state: switched) whenever an error is present (code Exxx) on the inverter; this does not apply to warnings (Warning ERROR OCCURENCY –...
  • Page 77 Under Voltage limit (set at 70% of Vstart). ABB sets the time at 60 sec. The user can set it at any time from 1 to 3600 sec.
  • Page 78 7 - Operation 14. MPPT This section of the menu allows you to set the parameters of the maxi- mum power point tracking (MPPT) function. This function is useful when there are areas of shade on the PV generator, which may create several points of maximum power on the operating curve.

  • Page 79: Info Menu

    7 - Operation nfo Menu Selecting INFO from the three main sub-menus gives access to: Information ENTER Product ID DOWN Serial No DOWN Firmware DOWN Country Select. 1. Product ID Displays the model code 2. Serial No Displays the serial number and week and year of manufacture of the equipment 3.

  • Page 80: Autotest Procedure In Accordance With Standard Cei 0-21

    7 - Operation UTOTEST procedure in accordance with standard CEI 0-21 The autotest run in accordance with grid standard CEI-021 may be initia- ted from the display menu or by using an RS485/USB converter with the dedicated interface software (Aurora Communicator). The conditions required to perform an Autotest are: •...
  • Page 81 7 - Operation The display shows the message “Performing Test” when the test has Test in corso started..At the end of the test, when the inverter has disconnected from the grid, the results and values of the test performed will appear on the display. You can move from one screen to another using the UP/DOWN arrow keys.

  • Page 82: Aintenance

    Maintenance eneral conditions Checking and maintenance operations must be carried out by specialized staff assigned to carry out this work. Maintenance operations must be performed with the apparatus disconnected from the grid (power switch open) and the photovoltaic panels obscured or isolated, unless otherwise in- dicated.

  • Page 83: Routine Maintenance

    PV plant. We recommend that maintenance operations be carried out by qualified personnel or by the personnel of ABB (as set forth in a maintenance contract). The periodicity of the maintenance operations may vary in accordance with local environmen-...
  • Page 84 8 - Maintenance - Code on display - Error message Name of Alarm and Cause Solution - Signal • Measure the insulation resistance using a megohmmeter posi- tioned in the photovoltaic field (positive terminal short-circuited at the negative pole) compared to ground. The measurement is strongly influenced by the environmental conditions, so must be - No code Ground fault of photovoltaic generator:...
  • Page 85 8 - Maintenance - Code on display - Error message Name of Alarm and Cause Solution - Signal - W010 * - Fan broken! Fan broken: • Error inside the inverter and cannot be checked externally. Yellow LED lamp. This error occurs when there is a malfunction in the fan/ - If the alarm repeats persistently, contact customer assistance.
  • Page 86 8 - Maintenance - Code on display - Error message Name of Alarm and Cause Solution - Signal • Check whether the composition of the PV generator enables Input over-current (photovoltaic generator): - E001 input current which exceeds the maximum threshold allowed by The alarm occurs when the inverter's input current - Input OC the inverter and that the configuration of the inputs (independent...
  • Page 87 8 - Maintenance - Code on display - Error message Name of Alarm and Cause Solution - Signal • Check that the setting of the "IN MODE" switch is specifically Incorrect configuration of inputs (set in parallel ra- set to "PAR" and that the bridges between the two input channels ther than independent): have been included.
  • Page 88 8 - Maintenance - Code on display - Error message Name of Alarm and Cause Solution - Signal Failure of the test on the inverter's relay (DC-AC cir- cuit): Before connecting to the grid the inverter carries out in- • Error inside the inverter and cannot be checked externally. - E021 ternal tests.
  • Page 89 8 - Maintenance - Code on display - Error message Name of Alarm and Cause Solution - Signal High leakage current (DC side): Error in the internal measurement (made when the in- - E030 verter is grid connected) of the leakage current of the •...

  • Page 90: Power Limitation Messages

    8 - Maintenance - Code on display - Error message Name of Alarm and Cause Solution - Signal • Check that the inverter is not exposed to direct sunlight. Wait for Excessive temperature measured inside the inver- E056 the temperatures to which the inverter is exposed to return to the ter's wiring box: - Over Temp.
  • Page 91 8 - Maintenance - Message on display Name of Derating and Cause Solution - Signal Power limitation for over-voltage: The message indicates that the user has set a power limitation due to over voltage (parameter U >(10 min)) in order to reduce the maximum output power of the inverter when the reading of the - LIMxxx% CODE:02 average grid voltage exceeds certain limits.

  • Page 92: Registration On "Registration" Website And Calculation Of Second-Level Password (Service Menu)

    8 - Maintenance egistration on “Registration” website and calculation of second- level password (Service Menu) Settings In order to obtain the second-level password needed to access the in- verter's service menu, it is necessary to go through the following stages: ENTER Password 0000 ENTER...
  • Page 93 8 - Maintenance Stage 3 - Request for second level password - Go online and access https://registration.ABBsolarinverters.com - Insert the Username (corresponding to the email used during registra- tion) and the Password obtained at the end of Stage 2 - Access the section dedicated to requesting the second-level password - Choose the inverter model from the drop-down list and insert Update Ver., Serial Number and Week of Production of the inverter which were obtained previously (Stage 1)
  • Page 94 8 - Maintenance - Click on icon to request password. Should there be an error in inputting data, the fields containing the error will be highlighted in red. If, on the other hand, the data are correct, the passwords will be shown in a new window and at the same time sent to the email address used for registration.

  • Page 95: Resetting The Time Remaining To Change The Grid Standard

    8 - Maintenance esetting the time remaining to change the grid standard From the time a valid grid standard is entered and the inverter is turned on, a period of 24 hours is available to modify the grid standard setting. The 24 hours are counted only when the inverter is turned on.

  • Page 96: Replacing The Back-Up Battery

    8 - Maintenance eplacing the back-up battery The back-up battery may need to be replaced when: 1. An error message is displayed 2. The date and time settings are reset Back-up battery replacement procedure: 1. Disconnect the strings by opening the AC and DC disconnect switches external to the inverter.

  • Page 97: Verification Of Ground Leakage

    8 - Maintenance erification of ground leakage In the presence of anomalies or report of ground fault (where provided), there may be a ground leakage from the PV generator (DC side). To check this, measure the voltage between the positive pole and ground and between the negative pole (of the PV generator) and ground using a voltmeter whose input accepts a voltage sufficient for the dimensions of the photovoltaic generator.

  • Page 98: Behaviour Of A System With Leakage

    8 - Maintenance ehaviour of a system with leakage If the voltage measured between one of the two poles and ground does not tend to 0V and stabilizes on a value, there is a ground leakage from the PV generator. Example: When the measurement is made between positive pole and ground, a voltage of 200V is measured.

  • Page 99: Measuring The Insulation Resistance Of Photovoltaic Generator

    8 - Maintenance easuring the insulation resistance of photovoltaic generator To measure the insulation resistance of the PV generator compared to ground , the two poles of the PV generator must be short-circuited (using a suitably sized switch). Once the short-circuit has been made, measure the insulation resistance (Riso) using a megohmmeter positioned between the two shorted poles and ground (of the inverter).

  • Page 100: Further Information

    For more information on ABB products and services for solar applica- tions, navigate to www.abb.com/solarinverters - 100 -...

  • Page 101: Contact Us

    www.abb.com/solarinverters...

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