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Related Manuals for ABB MICRO-0.25-I-OUTD-US-208/240
Summary of Contents for ABB MICRO-0.25-I-OUTD-US-208/240
- Page 1 ABB solar inverters Product manual MICRO-0.25/0.3/0.3HV-I-OUTD-US-208/240...
- Page 2 IMPORTANT SAFETY INSTRUCTIONS This manual contains important safety instructions that must be followed during installation and maintenance of the inverter. SAVE THESE INSTRUCTIONS! Keep this document in a safe place near the inverter for easy access during installation and maintenance. THE INSTALLER MUST READ THIS DOCUMENT IN ITS ENTIRETY BEFORE INSTALLING OR COMMISSIONING THIS EQUIPMENT.
- Page 3 1 - Introduction and safety 2 - Installation location 3 - Mounting and wiring 4 - Operations 5 - Troubleshooting 6 - Maintenance 7 - Appendix MICRO-0.25/0.3/0.3HV-I-OUTD-US-208/240 Product Manual BCG.00612.1_AA, NA Rev 1.1 © Copyright 2014 ABB. All Rights Reserved. - 3 -...
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Page 4: Table Of Contents
ontents ntroduction and safety ........................7 Warnings in this document ........................7 Equipment safety warnings ....................7 General installation warnings....................8 Electrical connection warnings ...................8 Safety instructions ..........................8 Thermal and voltage hazard ....................9 Location of safety notices and labels .................9 Appropriate usage ..........................9 Improper or prohibited use ....................9 Available models ..........................10 Regulatory label ........................10... - Page 5 roubleshooting ..........................33 Alarm messages generated by the MICRO inverter .................33 Verification of ground leakage ......................38 Behavior of a system without leakage ................38 Behavior of a system with leakage ...................39 Measuring the insulation resistance of the PV module ..............39 Making a service call ..........................40 aintenance .............................
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Page 7: Ntroduction And Safety
Introduction and safety arnings in this document This is a list of special safety symbols used in this manual that highlight potential safety risks and/or useful information. The symbol usage is described below: CAUTION The reader should stop, use caution and fully understand the operations explained before proceeding. -
Page 8: General Installation Warnings
1- Introduction and safety eneral installation warnings The inverter is designed and tested according to international safety requirements (UL1741/ IEEE1547); however, certain safety precautions must be observed when installing and operating this inverter. Read and follow all instructions, cautions and warnings in this installation manual. -
Page 9: Thermal And Voltage Hazard
1- Introduction and safety hermal and voltage hazard Certain parts may be extremely hot immediately following shut down due to normal Prior to touching any part of the inverter use care to ensure surfaces and equipment are at touch-safe temperatures and voltages before proceeding. Anytime the inverter has been disconnected from the AC utility grid, use extreme caution time to dissipate the charge. -
Page 10: Available Models
(HV)). Each version is also available for either a 240Vac split phase or 208Vac single phase AC grid connection. All model dimensions are 10.5” x 9.7” x 1.37” and weigh 3-1/2 lb (1.65kg). Output power Model number MICRO-0.25-I-OUTD-US-208/240 MICRO-0.3-I-OUTD-US-208/240 MICRO-0.3HV-I-OUTD-US-208/240 egulatory label 2. - Page 11 1- Introduction and safety 5. AC output ratings 6. Environmental rating 7. Serial number 8. MAC address...
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Page 12: Product Identification Label
1- Introduction and safety roduct identification label The sample product shown provides the following information: and the product label above, are attached to the inverter in a plastic bag as shown below. Use the small label to create a map of the system for use with the monitoring software. A template to be used for the diagram can be found in part 7. -
Page 13: Nstallation Location
Installation location ransportation and handling shocks, humidity, etc. ncoming inspection It is the customer’s responsibility to examine the condition of the unit. Upon receipt of the inverter check the following: Inspect the shipping container for any external damage. Inventory the contents against list below; verify receipt of all items. Use care not to discard any equipment, parts, or manuals. -
Page 14: Overall Dimensions And Minimum Clearances
2 - Installation location verall dimensions and minimum clearances and roof. nvironmental check of installation location See technical data in part 7 to check the environmental parameters to be observed (degree of protection, temperature, humidity, altitude, etc.) The maximum operational ambient air temperature MUST be considered when choosing the inverter installation location. -
Page 15: Installation Position
2 - Installation location nstallation position Install the inverter underneath the photovoltaic modules so that they work in the shade; if this condition cannot be met, the inverter could undergo power reduction. Any maintenance or replacement of the device could require the technician to dismount the photovoltaic module mounted on the top of the MICRO inverter. -
Page 16: Choice Of Ac Cable
2 - Installation location hoice of AC cable The AC cable is shipped on a reel with the connectors pre-mounted. The available spacing between connectors is: 41”, 67”, and 81”. The installer is responsible for choosing the AC cable model with the correct spacing on the basis of the orientation (shown below) and type of photovoltaic modules. - Page 17 2 - Installation location AC-Trunk Spool – 41 inches, 50 plugs * Ideal for 60-cell, 72-cell, 96-cell PV modules 41”...
- Page 18 2 - Installation location...
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Page 19: Ounting And Wiring
Mounting and wiring Assembly diagram... -
Page 20: Assembly Instructions
3 - Mounting and wiring ssembly instructions 1. Run the AC cable along the racking system used for installing the photovoltaic modules. The cable must be compatible with the expected installation conditions, particularly concerning the number of modules and their orientation (portrait or landscape). Legislation in force in the country of installation and the installed power will determine the maximum number of MICRO inverters permitted for installation at each AC cable section. -
Page 21: Dc Grounding Electrode Conductor Coupling All The Micro Inverters
3 - Mounting and wiring C grounding electrode conductor coupling all the MICRO inverters Tighten with 2Nm (17.7 in-lb) torque. -
Page 22: Dc Grounding Electrode Conductors For Each Micro Inverter
3 - Mounting and wiring C grounding electrode conductors for each MICRO inverter The conductor linking the assembly to the grounding distribution structure must be at Tighten with 2Nm (17.7 in-lb) torque. Ensure that the quality of the bond made between the conductor and the structure is secure. - Page 23 3 - Mounting and wiring 4. Fasten the AC-TRUNK cable to the frame with listed cable ties. Each connector is provided with two guides for ideal fastening. Cable ties are not supplied with the inverter or AC-TRUNK cable. Use listed cable ties rated to 75°C.
- Page 24 3 - Mounting and wiring 6. Fit the appropriate AC-trunk end cap on the unused ends of the AC-trunk cable. Connect the AC-TRUNK cable/s coming from the MICRO inverters to the junction box or to the AC distribution panel. 8. Use the duplicate label in the attached plastic bag to create a map of the system by placing the adhesive labels on the diagram (found in the appendix, part 7).
- Page 25 3 - Mounting and wiring 9. Plug the DC cables into the corresponding inputs on the MICRO inverters and install the photovoltaic modules. It is recommended to install the MICRO inverters underneath the PV modules to operate in the shade. Direct sunlight may cause elevated temperatures and consequently power limiting.
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Page 26: Installing The Ac Trunk End Cap
3 - Mounting and wiring nstalling the AC trunk end cap The unused ends of the AC-trunk cable must be terminated; the following is necessary for properly installing the cap: Fit the ring nut and gasket around the cross section of the cable to terminate. Strip 18-25 mm/0.7in –... -
Page 27: Wiring Details
3 - Mounting and wiring Disconnection of the MICRO inverter AC cable: Removal of the AC trunk plug cap iring details oad protection switch (AC disconnect switch) The dimensions of the thermal-magnetic circuit breaker should be determined by the number of MICRO inverters connected to a single AC line. -
Page 28: Differential Protection Downstream Of The Inverter
3 - Mounting and wiring ifferential protection downstream of the inverter ABB Micro inverters with a high frequency transformer are equipped with an isolation transformer for each of the DC/DC converters which operate 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 29: Characteristics And Sizing Of The Line Cable
The installation technician is responsible for selecting a junction box with the appropriate dimensions and insulation. Do not to reverse the phase with the neutral! It is required that the CDD be installed with any ABB MICRO inverter in compliance with UL1741, for the purpose of indication and resetting of ground faults. - Page 30 3 - Mounting and wiring...
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Page 31: Perations
Operations ommissioning The MICRO inverter operating state is controlled through the CDD. The MICRO inverters must be acquired using the CDD before commissining the inverter. knowledge of the CDD equipment and the functions that have been enabled in the installation. The CDD Quick Installation Guide is shipped with the CDD and can be found on the website along with the CDD product manual. -
Page 32: Led Indicators
4 - Operations ED indicators LED behavior of MICRO inverters with LED on front panel System Description Grid Duration GREEN Status Power Connection 1 Start up MICRO 10sec. 50% DUTY virgin CYCLE, PERIOD 2SEC 2 Start up MICRO 10sec. SOLID GREEN acquired STATIC PHASE No DC... -
Page 33: Troubleshooting
Troubleshooting larm messages generated by the MICRO inverter The equipment communicates errors/warnings via radio to the associated CDD. Any messages received and ror (Exxx) messages generated by the MICRO inverters and displayed on the CDD, refer to the table below. Display code Cause Solution... - Page 34 5 - Troubleshooting Display code Cause Solution LED status Alarm message E006 The error appears when the inverter a) Check that the grid voltage is stable, blinking red output current exceeds the internal mainly upon: Output OC inverter alarm threshold. - loading with high current peak loads.
- Page 35 5 - Troubleshooting Display code Cause Solution LED status Alarm message E018 The error is generated when a ground blinking green leakage current is detected in the DC age” and “Measuring the insulation Ground fault section of the system. This may be resistance”...
- Page 36 5 - Troubleshooting Display code Cause Solution LED status Alarm message E051 The set grid standard is not compat- Solid red in the installation must be updated to a Country Not MICRO inverter. This condition may compatible version. Firmware updates Comp be generated if a MICRO inverter is replaced.
- Page 37 5 - Troubleshooting Display code Cause Solution LED status Alarm message This alarm is generated when one or If the error is generated only on one of Blinking green more grid parameters lie outside the the installation MICRO inverters, this Grid Fail permitted range set by the country of may be due to an inverter fault.
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Page 38: Verification Of Ground Leakage
5 - Troubleshooting erification of ground leakage In the presence of anomalies or report of ground fault, there may be a ground leakage from the photovoltaic module. To check this, measure the voltage between the positive pole and ground and between the negative pole and ground using a voltmeter. -
Page 39: Behavior Of A System With Leakage
5 - Troubleshooting ehavior 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 photovoltaic module. easuring the insulation resistance of the PV module To measure the insulation resistance of the photovoltaic module compared to ground, the two poles of the PV generator must be short-circuited (using a suitably sized selector), and verify that the chassis of the module... -
Page 40: Making A Service Call
5 - Troubleshooting If the measured insulation resistance is less than 1Kohm the inverter does not connect to the grid due to a low insulation of photovoltaic module respect to ground. The insulation resistance is affected by the environmental conditions the photovoltaic module is in (E.g.: pho- tovoltaic module wet from dump or rain);... -
Page 41: Aintenance
Maintenance outine maintenance or generate electrostatic charges. The maintenance schedule may vary depending on the environmental conditions of the installation site. Maintenance operations must be carried out with the equipment disconnected from the grid (power switch open) and the photovoltaic modules obscured or isolated, unless otherwise indicated. -
Page 42: Storage And Dismantling
ABB CANNOT be held responsible for disposal of the equipment, displays, cables, batteries, etc. The customer must dispose of these substances, which are potentially harmful to the environment, in accordance with the regulations in force in the country of installation. -
Page 43: Ppendix
Appendix he MICRO inverter system This system is composed of a group of MICRO Inverters that convert direct electric current from a photovoltaic module into alternating electric current and feed it into the utility grid. Photovoltaic modules transform energy from the sun into direct current (DC) electrical energy (through a rotating parts and only through static electronic devices. -
Page 44: Functionality Of The Equipment
7 - Appendix unctionality of the equipment Data transmission and control The MICRO inverters are monitored remotely through an advanced communications system based on a wireless connection and the CDD. In addition to local monitoring of the system, it is possible to have remote data visualization through an internet access to AURORA® VISION web portal. -
Page 45: Efficiency Curves
7 - Appendix fficiency curves should therefore is considered approximate. -
Page 46: Power Reduction Curves
7 - Appendix ower reduction curves In order to allow inverter operation in safe thermal and electrical conditions, the unit automatically reduces the value of the power fed into the grid. Power reduction can take place due to adverse environmental conditions or due to unsuitable input voltage values. - Page 47 7 - Appendix Power reduction due to input voltage The graphs show the automatic reduction of supplied power when input voltage values are too high or too low. The conditions for power reduction due to environmental conditions and input voltage can also occur at the same time, but the power reduction will always relate to the lower value measured.
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Page 49: Block Diagram
7 - Appendix lock diagram The diagram at right summarizes the layout of the MICRO inverter. The main blocks are the DC-DC input converter (the “boost” section) and the DC- AC output inverter. Both work at a high switching frequency, are small and relatively light. The inverter is equipped with a single input converter with Maximum Power Point Tracking (MPPT) to which it is possible to connect a single photovoltaic... -
Page 50: Wiring Diagram - 208Vac Three Phase
7 - Appendix iring diagram – 208Vac three phase If several MICRO inverters are installed in a three-phase AC GRID, it is recommended to distribute the inverters between the phases in order to reduce the power unbalances between the phases. Refer to the local standards. -
Page 51: Wiring Diagram - 240Vac Split Phase
7 - Appendix iring diagram – 240Vac split phase... -
Page 52: Template For System Diagram Of Installation
7 - Appendix emplate for system installation diagram... -
Page 53: Technical Data And Types
7 - Appendix echnical data and types Type code MICRO-0.25-I-OUTD MICRO-0.3-I-OUTD MICRO-0.3HV-I-OUTD Nominal output power 250W 300W 300W Rated grid AC voltage 208V 240V 208V 240V 208V 240V Maximum output power 260W 310W 310W Input side (DC) Maximum usable DC input power Maximum PV panel rating (STC) 300W 360W... - Page 54 For more information on ABB products and services for solar applications, navigate to www.abb.com/solarinverters...
- Page 55 www.abb.com/solarinverters...