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Power One AURORA MICRO-0.25-I-OUTD-US-208/240 Manual Download Page 2

 

 

 

 

 

AURORA MICRO ® 

Grid Tied Inverters 

 

MICRO-0.25/0.3-I-OUTD-US-208/240 

 

Technical Manual 

 

 

Summary of Contents for AURORA MICRO-0.25-I-OUTD-US-208/240

Page 1: ...THE MANUAL MICRO Model Number MICRO 0 25 I OUTD US 208 240 MICRO 0 3 I OUTD US 208 240...

Page 2: ...AURORA MICRO Grid Tied Inverters MICRO 0 25 0 3 I OUTD US 208 240 Technical Manual...

Page 3: ...quential damages under any circumstances Power One Renewable Energy Solutions LLC reserves the right to make changes to this document without notice and shall not be responsible for any damages includ...

Page 4: ...BCG 00612_AB Table of Revisions Revision Number Author Date Approved by Description of Modification AA Tech docs 12 6 12 BCG 00612 BCM 00138 New release AB Tech docs 2 4 13 BCG 00612 BCM 00138 New dat...

Page 5: ...ONNECTION TO THE AC DISTRIBUTION GRID AC SIDE 42 3 5 WIRING OF AC CABLE 43 PART 4 OPERATIONS GUIDE 44 4 1 GENERAL CONDITIONS 45 4 2 DISPLAY AND KEYPAD 45 4 3 COMMISSIONING 48 PART 5 TROUBLESHOOTING 50...

Page 6: ...Page 5 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Technical Manual PART 1 INTRODUCTION AND SAFETY...

Page 7: ...s available from the respective manufacturer This manual is a guide that will enable installers to work safely install the MICRO system and maintain it in good working order 1 1 2 INSTALLATION The ins...

Page 8: ...Inverter models available Output power Model number 250 Watts MICRO 0 25 I OUTD US 208 240 300 Watts MICRO 0 3 I OUTD US 208 240 1 1 4 NAMEPLATE The nameplate shown below is affixed to the inverter an...

Page 9: ...BCG 00612_AB Part 1 Introduction and Safety AC Rating Environmental rating Serial number MAC address 1 1 5 COMMISSIONING Power One can provide commissioning initial setup and power up Please contact...

Page 10: ...and the color of the components may not match those illustrated however the information is still applicable 1 1 8 STORAGE OF THIS INFORMATION Keep this document in a safe place near the AURORA MICRO...

Page 11: ...uding equipment damage or personal injury CAUTION This points out that the examined area must not be entered or that the described operation must not be carried out The reader should stop use caution...

Page 12: ...ure to read all labels before beginning installation of the equipment If any questions arise as to the meaning or intent of these notices please contact Power One Technical Support at 877 261 1374 1 2...

Page 13: ...ted 1 sec Default Adj Set Points 0 16 sec to 5 sec D V 120 Vnor Not Adjustable Rated 0 16 sec Not Adjustable E Rated f 60 5 Not Adjustable 0 16 sec Not Adjustable F Rated f 59 3 Default Adj Set Points...

Page 14: ...technical personnel CAUTION Systems with inverters typically require additional control e g switches disconnects or protective devices e g fusing circuit breakers depending upon the local safety regu...

Page 15: ...o the National Electric Code and abiding by specified environmental and mounting parameters as stated in this manual see Environmental Conditions section 1 2 2 3 and General Installation Conditions se...

Page 16: ...e and humidity Using the equipment with safety devices not working or disabled Using the equipment or parts of the equipment by connecting it to other machines or equipment unless otherwise expressly...

Page 17: ...A Inverter in accordance with the electrical standards prescribed by the applicable National Electric Code NEC Canadian Electric Code CEC and or by other local codes and regulations Use personal prote...

Page 18: ...in accordance with their intended use and by a licensed contractor or authorized Power One Service representative Liabilities arising from commercial components are delegated to their respective manu...

Page 19: ...lates are for notification and protection Figure 1 1 Safety label location The labels and plates attached to the equipment must NOT be removed damaged hidden etc They must be cleaned regularly and kep...

Page 20: ...l and product nameplate there is one identification label on the inverter A duplicate label is attached in a plastic bag as shown below and will be used later to fill in the system map for the monitor...

Page 21: ...l devices from lighting to household appliances etc When the photovoltaic system is not supplying sufficient power the power needed to ensure normal operation of the connected electrical devices is dr...

Page 22: ...Page 21 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Technical Manual PART 2 UNPACK AND SELECT INSTALLATION LOCATION...

Page 23: ...ging elements cardboard cellophane staples adhesive tape straps etc may cause cuts and or injuries if not handled with care They should be removed by suitable means and disposed of in accordance with...

Page 24: ...lugs AC cable 4 conductors 10AWG Plug connector pitch 41 AC TRUNK SPOOL 67 inches 32 plugs AC cable 4 conductors 10 AWG Plug connector pitch 67 AC TRUNK SPOOL 81 inches 27 plugs AC cable 4 conductors...

Page 25: ...ct Installation Location 2 2 SELECT INSTALLATION LOCATION 2 2 1 OVERALL DIMENSIONS The following figure shows the recommended minimum clearances around the inverter The overall dimensions are expresse...

Page 26: ...rs to be observed degree of protection temperature humidity altitude etc To avoid unwanted power derating due to an increase in the internal temperature of the inverter do not expose it to direct sunl...

Page 27: ...on comply with the following conditions Install only on structures specifically conceived for photovoltaic modules supplied by installation technicians Install MICRO inverter underneath the photovolta...

Page 28: ...ing the installation ensuring that the safety distances are correct for normal control and maintenance operations The distance between MICRO inverters installed on the same system array depends on the...

Page 29: ...he AC cable model with the correct spacing on the basis of the orientation shown below and type of photovoltaic modules Observe the certification documents concerning the maximum number of MICRO inver...

Page 30: ...Trunk Spool 41 inches 50 plugs Ideal for 60 cell 72 cell 96 cell PV modules Figure 2 5 Vertical orientation of the photovoltaic modules Note The AC TRUNK SPOOL may contain a number of connectors indi...

Page 31: ...Page 30 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Technical Manual PART 3 MOUNTING AND WIRING...

Page 32: ...Page 31 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Part 3 Mounting and Wiring 3 1 ASSEMBLY DIAGRAM Figure 3 1 Graphical representation of assembly instructions...

Page 33: ...AC cable section Do NOT exceed the maximum number of MICRO inverters permitted for installation See technical data found in the Appendix Part 7 of this manual 2 Secure the MICRO inverter to the photov...

Page 34: ...BCG 00612_AB Part 3 Mounting and Wiring Equipment grounding conductor coupling all the MICRO inverters The conductor must have a minimum cross section of 6 AWG 8AWG in conduits Figure 3 2 Equipment g...

Page 35: ...mum cross section of 8 AWG maximum length 1m Ensure that the quality of the bond made between the conductor and the structure is secure Only a racking system that is certified for use as a grounding s...

Page 36: ...ed for use in the installation location 5 Remove the temporary cap from AC TRUNK cable connectors and then connect the MICRO inverters The connectors are coupled correctly when two clicks are heard Be...

Page 37: ...on the unused ends of the AC TRUNK cable 7 Connect the AC TRUNK cable s coming from the MICRO inverters to the junction box or to the AC distribution panel 8 Draw a map of the system affixing the ext...

Page 38: ...underneath the photovoltaic modules having them operate in the shade Direct sunlight could cause elevated temperatures and consequently derating Each module must be connected to the MICRO Inverter wi...

Page 39: ...h slight pressure 5 Screw the ring nut to apply the correct pressure on the gasket max 2 45Nm 1 81 ft lbs 6 Secure the section of the terminated cable to the frame structure with cable ties 3 2 2 USE...

Page 40: ...0 3 I OUTD US 208 240 BCG 00612_AB Part 3 Mounting and Wiring The figures below illustrate the use of the AC trunk unlock tool Figure 3 4 Disconnection of the MICRO inverter AC cable Figure 3 5 Removi...

Page 41: ...0 25 4 7 12 15 MICRO 0 3 3 6 9 12 Max number of inverters 208VAC MICRO 0 25 4 6 10 13 MICRO 0 3 3 5 8 11 The dimensions of the thermal magnetic circuit breaker should be determined by the number of M...

Page 42: ...CHOOSING THE INTERFACE PROTECTION SYSTEM AND DEVICE DOWNSTREAM OF THE INVERTER The inverter does not include any electromechanical devices relays contactors etc for automatic disconnection from the po...

Page 43: ...al connections to the insulated junction box caps adapters etc must be made with securely sealed Power One components 3 4 1 CHARACTERISTICS AND SIZING OF THE LINE CABLE The line cable not supplied fro...

Page 44: ...to identify the function of each conductor Table 3 2 Wiring of AC Cable Pay special attention and ensure not to reverse the phase with the neutral The installation technician is responsible for selec...

Page 45: ...Page 44 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Technical Manual PART 4 OPERATIONS GUIDE...

Page 46: ...DISPLAY AND KEYPAD The Power One MICRO inverters associated with the CDD are controlled and monitored through the CDD 4 2 1 DESCRIPTION OF THE DISPLAY The display for the CDD permits simultaneous moni...

Page 47: ...nu or to increase decrease the settable values The ESC button returns the user to the previous submenu when navigating The ENTER button is pressed to bring the user to the desired submenu or to confir...

Page 48: ...GEMENT The CDD device is equipped with an Ethernet port and a Wi Fi network interface controller to connect to a local network or Internet The system can be managed and monitored from a PC or Smartpho...

Page 49: ...l data in the Appendix section of this manual for further details 4 3 1 PRELIMINARY CHECKS When conducting the checks ensure that the main AC disconnect downstream from the system and any other possib...

Page 50: ...ering at the AURORA VISION portal are described in the AURORA CDD Instruction Manual Please refer to the Operations Guide Part 4 of the AURORA CDD Instruction Manual to complete the commissioning of t...

Page 51: ...Page 50 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Technical Manual PART 5 TROUBLESHOOTING...

Page 52: ...specifications are compatible with the inverter c If conditions a and b have been verified and the error persists the malfunction may be caused by an internal inverter fault Vbulk OV E004 The error is...

Page 53: ...ground leakage and Measuring the insulation resistance sections for information on how to perform checks and measurements a If the measured insulation resistance value is less than 1K the PV module ha...

Page 54: ...ware installed on the MICRO inverter This condition may be generated if a MICRO inverter is replaced The firmware in the MICRO inverter s in the installation must be updated to a compatible version Fi...

Page 55: ...RO inverters Use the CDD Internal Web Server to verify the signal quality refer to the CDD manual for information on the Internal Web Server Comm fault W005 The alarm is generated when the CDD device...

Page 56: ...ing a voltmeter 5 2 1 BEHAVIOR OF A SYSTEM WITHOUT LEAKAGE Due to the capacitive effect of the photovoltaic module during the first moments that the voltmeter is connected between one of the two poles...

Page 57: ...otovoltaic module Example When the measurement is made between positive pole and ground on a photovoltaic module with Voc 37V a voltage of 7V is measured 5 3 MEASURING THE INSULATION RESISTANCE OF PHO...

Page 58: ...ted poles and ground of the inverter 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...

Page 59: ...cal Service Engineers Provide a brief description of the fault Information on the photovoltaic module Brand and model of photovoltaic modules Identify the system structure o Maximum voltage and curren...

Page 60: ...Page 59 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Technical Manual PART 6 MAINTENANCE GUIDE...

Page 61: ...o be used if problems of any kind are found and restore the normal conditions correctly or otherwise make sure that this is done Always use the personal protective equipment provided by the employer a...

Page 62: ...verters are not designed to allow internal repairs The AC output wiring harness AC drop cable on the MICRO inverter cannot be replaced If the cord is damaged the equipment should be scrapped Any maint...

Page 63: ...inside the equipment if not suitably protected 6 2 2 DISMANTLING DECOMMISSIONING AND DISPOSAL Power One CANNOT be held responsible for disposal of the equipment displays cables batteries accumulators...

Page 64: ...Page 63 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Technical Manual PART 7 APPENDIX...

Page 65: ...Page 64 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Part 7 Appendix 7 1 TECHNICAL DATA...

Page 66: ...s of the efficiency curves of all the models of inverter described in this manual are shown below The efficiency curves are linked to technical parameters that are continually being developed and impr...

Page 67: ...conditions and input voltage can also occur at the same time but the power reduction will always relate to the lower value measured 7 1 2 1 Power Reduction Due To Environmental Condition The power red...

Page 68: ...age 67 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Part 7 Appendix Figure 7 3 MICRO 0 25 I OUTD 208 240 temperature derating curve Figure 7 4 MICRO 0 3 I OUTD 208 240 temperature derating curv...

Page 69: ...duction Due To the Input Voltage The graphs show the automatic reduction of supplied power when input voltage values are too high or too low Figure 7 5 MICRO 0 25 I OUTD 208 240 voltage derating curve...

Page 70: ...MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Part 7 Appendix Figure 7 7 MICRO 0 3 I OUTD 208 240 voltage derating curve Tamb up to 65 C Figure 7 8 MICRO 0 3 I OUTD 208 240 voltage derating curve Tam...

Page 71: ...er words with galvanic isolation of the primary DC side from the secondary AC side while maintaining very high performance in terms of output and energy export This type of circuit allows for the grou...

Page 72: ...Page 71 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Part 7 Appendix Figure 7 9 Topographic Diagram...

Page 73: ...7 10 Wiring diagram 208Vac three phase IMPORTANT If several Aurora MICRO inverters are installed in a three phase AC GRID it is recommended to distribute the inverters between the phases in order to...

Page 74: ...Page 73 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Part 7 Appendix Figure 7 11 Wiring diagram 240Vac split phase...

Page 75: ...ROTECTIVE DEVICES 7 1 2 1 Anti Islanding In accordance with required national standards and laws in the event of a local grid outage by the utility or when the grid equipment is switched OFF for maint...

Page 76: ...Page 75 of 76 MICRO 0 25 0 3 I OUTD US 208 240 BCG 00612_AB Part 7 Appendix 7 2 TEMPLATE FOR MAP OF MICRO INVERTER INSTALLATION...

Page 77: ...nding the MICRO inverters 34 Figure 3 4 Disconnection of the MICRO inverter AC cable 39 Figure 3 5 Removing the AC trunk plug cap 39 Table 3 1 Overcurrent device recommended characteristics 40 Table 3...

Page 78: ...800 00 28 76 72 Aurora Power Service Germany 0800 2200211 Aurora Power Service Italy 00 800 00 28 76 72 Aurora Power Service Spain 00 800 00 28 76 72 Aurora Power Service Middle East 00 800 00 28 76...

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