MIG240 Installation Manual
Contents
1. vice versa CAUTION Micro inverters and PV modules are installed using a one to one ratio 12 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL Step 4 Install the AC Branch Circuit Junction Box 4 1 Mount the adapter plate to a suitable location on the PV racking system typically at the end of a row of modules The adapter plate must be installed with an appropriate junction box 4 1 Connect the open wire end of the AC interconnect cable into the junction box using an appropriate gland or strain relief fitting The fog ff C S ae AC interconnect cable requires a strain relief e CONS A 7 connector with an opening of 3 8 inches in x diameter Step 5 Lay Out the AC Trunk Cable Place the AC trunk cable at the required location Align the T branch connector to the position where the micro inverter will be installed Then secure the cable on either side of the rack using cable clips or tie wraps Step 6 Terminate the Unused End of the AC Trunk Cable 6 1 Strip 10mm about 0 5in of the outer sheath from the end of the AC trunk cable 6 2 Each terminator has four parts the sealing nut clamp ring seal and cap Slide the sealing nut clamp ring and then the seal onto the AC trunk cable 6 3 Insert the individual wires into the slots inside the cap of the terminator 6 4 Screw the hex nut onto the cap Use a wrench to ensure the hex nut is screwed in all the way to the base of the ca2. CAUTION Each AC branch circuit must be protected by a dedicated circuit breaker of 30A or less if using 10 AWG trunk cable or 20A or less if using 12 AWG trunk cable 6 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL Parts and Tools This section provides a list of equipment and tools needed for installing and setting up the PV system Darfon Equipment e MIG240 micro inverter e ACtrunk cables with T branch connectors e Sealing caps for any unused drops on the AC trunk cable e Terminators one needed at the end of each AC branch circuit Other Equipment Tools PV module e PV racking with a DC junction box attached to one of its ends e Cable clips or tie wraps e ACjunction boxes e Gland or strain relief fitting one per AC junction box e Continuous grounding conductor grounding washers Torque wrench sockets wrenches for mounting hardware e Adjustable wrench or open ended wrench for terminators Lightning Surge Suppression Lightning does not actually need to strike the equipment or building where the PV system is installed to cause damage Often a strike nearby will induce voltage spikes in the electrical grid that can damage equipment Darfon s micro inverters MIG240 have built in integral surge protection much higher than most traditional inverters However if the surge has sufficient energy the built in protection in the device would exceed and the device can
3. 3 Define customer service as Port Forwarding Rev 02 02013 Darfon America Corp 25 Page MIG240 MICRO INVERTER INSTALLATION MANUAL NAT Games and Other Services This page allows you to host games and other services over an Internet Connection Service Name Data loggerres v 1 0 f Enable Delete Edit x denotes custom service C Define Custom Service Forward a range of ports to an IP address on the LAN only after specific outbound traffic otep 4 Set the port to be 21 and Click the Next button Port Range Set up a Port Forwarding range entry based on your specific ports Service Name Data logger The above name will be saved as this service s description Global Port Range 80 80 Base Host Port 80 Protocol TCP UDP Fl X h Next Back Cancel Step 5 26 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL Repeat Step 1 4 you can make service name as xxxx 1 xxxx 2 and set the prot as 23 and 80 as below Port Range Set up a Port Forwarding range entry based on your specific ports service Name Data logger 1 The above name will be saved as this service s description Global Port Range 21 BI Base Host Port 21 Protocol TCPO UDP i x gf Next Back Cancel oet up a Port Forwarding range entry based on your specific ports Service Nama Data logger 2 The above name will be saved as this service s descript
4. as the property of their respective owners 2 Page 02013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL TABLE OF CONTENTS IMPORTANT SAFELY INSTRUCTIONS X uu k a m SS oba Corm to tui tua Ferd Ub Meu etis 4 ABOUT DARFON MICRO INVERTERS insidet tesa EP aio es inicie u u bei he Res 5 Gn erpal OVerv eW TU UEM 5 Advantages of Darfon Micro Inverters r 5 PRE INSTALEATION sies oct ded betae adv ns ab seu Du vta eI b ns a aia ae eae 6 Kia asi cc 6 COMpPatlOllity dand sana a 6 Parte and TOOS s M IE 7 Lightning Surg e S ppf sSSi n sua codes ets pate dod Vo pav ai telobsd v esu euet 7 IWICUINTIE ODT ONS tas RE AC Trunk Calo Gu 8 INSTADEATION PROCEDURE uuu u Xu uu a ne aliad u med nuy susan bte Mass 10132 9 Installing onto a PV Racking SySteMm ssccssccsssosssssssoscsesccssenesssssccssesescoussosssassoussousess 9 Installing onto the back of a PV Module 12 POSTINSTALLATION u u 15 Commissioning and Operating au u u Pere gue a u pU CRUS Uli eds 15 Trop 6SshootiliBu suyu u e cop s Face ben aeo Datum Seo e ap uev eue ovde aane naue asa desea domenus 15 DISCONMECTING a MIGEO nyerte l
5. be damaged As the Darfon Limited Warranty does not cover extraordinary and unexpected manifestation of the forces of nature such as lightning strikes it is recommended to install surge protection as part of any solar installation We recommend the following protection devices These have been tested to ensure that they do not interfere with power line communications Install per vendor instructions Residential Vendor Citel Part Number DS72RS 120 or DS73RS 120 Application DS72RS 120 is applied when N G is bound together or DS73RS 120 were N G is unbound Commercial Vendor Citel Part Number SP 120 Application Branch panel protection See the vendor datasheet for DS7OR which includes the DS72RS 120 or for SP 120 at www citelprotection com english citel data sheets ac protection Rev 02 02013 Darfon America Corp 7 Page MIG240 MICRO INVERTER INSTALLATION MANUAL Mounting Options The micro inverter can be mounted and installed on the back of the PV module panel screw tightened to the frame of the panel or on the standard PV racking The micro inverter will vary based on the type of mounting option chosen Be sure to have the correct micro inverters to support the installation type Mounting gt Grounding Mounting Bracket Terminal Bracket DC i J f 9 t z p AC Cable Onnector Grounding Tema 2 7 CN N AC Cable Z LED RC VY SS DC Connector k XY Option 1
6. for CAT5 wires Data Logger PLC Box RS485 Connection from Data Logger to PLC Box Rev 02 2013 Darfon America Corp 21 Page References for the layout on the roof Rule 1 One PLC can support to 25 units of MIG240 maximum No more than 13 units each in each side 4J JMIUL 03A MIG240 MICRO INVERTER INSTALLATION MANUAL Rule 3 Keep PLC closed to the microinverters No more than 10 m from the first unit E E le 4 Commerc E Ea s dent k i Ec 1 um i m Q a zi T a x n i 1 L i i i ii La a I j tm Mi TE di z a B LI ial layout should be regular and arranged AN p pir Fo 2 t EA Tr Lk o a Ll I Le k Kk i Rev 02 2013 Darfon America Corp 23 Page MIG240 MICRO INVERTER INSTALLATION MANUAL Data logger Internet setting AT amp T router as an example This is a real hard one to find anything out about Even Motorola doesn t have anything on their site dealing with this specific model and that could be because either AT amp T has them specifically make this model for them or because Motorola split into two companies and stuff isn t all updated transferred yet As Darfon don t have one of these and all equipment isn t the same Darfon will give you what we have found The previous Motorolas in AT amp T SBC areas was the 2210 2310 which evolved somehow into the Netopia l
7. for outdoor installation and complies with the NEMA 6 environmental enclosure rating standard Enhanced Monitoring System Darfon s enhanced monitoring system can view the performance of each module in the PV array a capability not available with string inverters This provides users installers with detailed real time information that can be used to pinpoint the location of performance issues and provide guidance for maintenance ensuring the solar system s performance is optimized over the lifetime of the installation Simplified PV Array Design and Installation With Darfon micro inverters the PV array design and installation can be simplified because solar modules can be installed on any available space on rooftops With conventional inverters the PV array design and installation are generally more complicated due to the effects shading has on the overall performance of the PV array When using Darfon micro inverters installers do not need to match the performance levels of adjacent solar modules to optimize the performance making solar installations easier faster and cheaper to implement Rev 02 02013 Darfon America Corp 5 Page MIG240 MICRO INVERTER INSTALLATION MANUAL PRE INSTALLATION Review and follow the instructions in this section before installing Darfon MIG240 micro inverters Layout PV System The PV system layout will need to be planned before installation The layout plan will affect the wiring and cabling schemes a
8. has four parts the sealing nut clamp ring seal and cap Slide the sealing nut clamp ring and then the seal onto the AC trunk cable 7 3 Insert the individual wires into the slots inside the cap of the terminator 7 4 Screw the hex nut onto the cap Use a wrench to ensure the hex nut is screwed in all the way to the base of the cap WARNING Ensure the AC trunk cable and terminator do not touch the roof by using cable clips or tie wraps to attach the trunk cable to the PV racking Ensure that all cabling is located underneath the PV module Step 8 Connect the AC Junction Box Connect the AC trunk cable to the AC junction box using the appropriate gland or strain relief fitting The AC trunk cable requires a strain relief connector with an opening of 1 6 cm 0 6 in in diameter The wires in the AC trunk cable are identified by color L1 is sheathed in Black L2 is sheathed in Red Neutral is sheathed in White and Ground is sheathed in Green WARNING Although the AC trunk cable includes a grounding wire the continuous grounding conductor or grounding washers is still required Step 9 Connect the PV Modules Mount the PV modules above the micro inverters and then connect each micro inverter to a PV module The micro inverter and PV module s DC cables have two connectors Connect the micro inverter positive connector to the PV module negative connector and vice versa CAUTION Micro inverters and PV modules are installed using a one
9. hazards or cause damage to this product Safety Instructions e Readall instructions and cautionary marks in the manual carefully before starting the installation e Do not attempt to repair this product it does not contain user serviceable parts Repairs and internal servicing should only be performed by Darfon authorized service personnel e Do not tamper with or open this product Opening this product may result in electric shock e Perform all electrical installations in accordance with all applicable local electrical codes and the National Electrical Code NEC ANSI NFPA 70 e Only qualified electrical personnel should perform the electrical installation and wiring of this product e Be aware that even without an external voltage source connected the MIG240 micro inverter may contain high voltages and there is a risk of electrical shock e Connect the Darfon micro inverter to the utility grid only after receiving prior approval from the electrical utility company e The temperature of the heat sinks outside of the device can reach over 85 C in normal operation To reduce risk of burns use caution when working with micro inverters e Do not disconnect the DC power source from the Darfon micro inverter without first disconnecting the AC power source Both AC and DC power sources must be disconnected before servicing Be aware that DC power voltage is generated when the photovoltaic array is exposed to light e Switch off the circuit b
10. racking system typically at the end of a row of modules The adapter plate must be installed with an appropriate junction box 2 2 Connect the open wire end of the AC interconnect cable into the junction box using an appropriate gland or strain relief fitting The AC interconnect cable requires a strain relief connector with an opening of 3 8 inches in diameter Step 3 Lay Out the AC Trunk Cable Place the AC trunk cable at the required location Align the T branch connector to the position where the micro inverter will be installed Then secure the cable on either side of the rack using cable clips or tie wraps Step 4 Attach the Micro Inverter to the PV Racking 4 1 Note the approximate centers of each PV module on the PV racking 4 2 Evaluate the location of the micro inverter against potential collection of moisture or water 4 3 Evaluate the location of the micro inverter with respect to the DC junction box and the PV module frame 4 4 Align the MIG240 so that the holes on the mounting bracket are above the slot opening on the PV racking and secure the micro inverter to the PV racking with screws CAUTION 240 Volt AC Single Phase 211 to 264 VAC L1 L2 to neutral 106 to 132 VAC 2 38 Pal a E 3 ge me eds bs DR d e sats AS S Ss F E ud or Ensure that the inverter does not obstruct the PV module frame or stiffen braces Ensure the micro in
11. uuu Leve dnd ka a se n pee dug ree tabo ud eaa Pali 16 TEGHNICAESPECIFICATIONS 4 u o Couteau Un Doe ees 17 INSTAPEATION MAPuuu u o EO teddies 18 SAMPLE WIRING DIAGRAM Small system 25 MIS ccccescccseccssceeseeceeeeceeceeseceeuceeeeeteneeeneeees 19 SAMPLE WIRING DIAGRAM Suggestion for small systems 20 SAMPLE WIRING DIAGRAM Big system gt 25 MIs esses nennen nnns 21 aqa 22 Rev 02 2013 Darfon America Corp 3 Page MIG240 MICRO INVERTER INSTALLATION MANUAL IMPORTANT SAFETY INSTRUCTIONS READ THIS FIRST amp SAVE THESE INSTRUCTIONS This manual contains important instructions for the installation and maintenance of Darfon MIG240 micro inverters Before installing please read these safety instructions carefully Take special care to follow the warnings indicated on the unit itself as well as the safety suggestion listed below Safety Symbols To reduce the risk of injury and to ensure the continued safe operation of this product the following safety instructions and warnings are marked in this manual WARNING This indicates the risk of electric shock The presence of high voltage levels may constitute a risk of injury or death to users and or installers CAUTION This indicates important information where failure to comply may result in safety
12. DARFON 3 M lil MIG240 MICRO INVERTER INSTALLATION MANUAL 4J JMIUL 03A MIG240 MICRO INVERTER INSTALLATION MANUAL FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on you are encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Changes or modifications not expressly approved by the party responsible for compliance may void the user s authority to operate the equipment Other Information Product information is subject to change without notice All trademarks are recognized
13. G240 MICRO INVERTER INSTALLATION MANUAL Step 3 Verify that there is AC voltage from the AC branch circuit to each micro inverter Step 4 Verify that any upstream AC disconnects as well as the dedicated circuit breakers for each AC branch circuit are functioning properly and are closed Step 5 Verify the PV module DC voltage is within the allowable voltage and wattage range shown in the Technical Specifications section on page 25 Step 6 Verify the DC is connected correctly between the micro inverter and the PV module Step 7 If the problem persists contact Darfon Technical Support at support darfon com Disconnecting a Micro Inverter Ensure the micro inverter is not disconnected from the PV modules under load and switch off the circuit breakers Step 1 Disconnect the micro inverter from the AC trunk cable Step 2 Completely cover the PV module with an opaque cover WARNING Be aware that DC power voltage is generated when the PV module is exposed to light Step 3 Using a meter verify that the DC wires between the PV module and the micro inverter does not have a current Step 4 Disconnect the PV module from the micro inverter To disconnect the micro inverter s positive connector squeeze the locking mechanism and pull the connectors apart The micro inverter s negative connector is tool removable only 1 ED Positive Connector Negative Connector Step 5 Disconnect the grounding wire or washer from the micro inver
14. Mounting onto the PV Racking Option 2 Mounting onto the Back of the PV Module AC Trunk Cable There are different types and options for AC trunk cables Depending on the orientation of the installation the AC trunk cable can be in portrait or landscape format Trunk cables can also consist of three pins three wires or four pins four wires Darfon currently uses the four pin AC trunk cable Pin Wire Color Wire Usage Note Darfon previously used the three pin AC trunk cable For support please contact an authorized Darfon representative Pin Wire Color Wire Usage 8 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL INSTALLATION PROCEDURE The following sections list steps on how to install the micro inverter onto a standard PV racking or onto the back of a PV module Ensure the micro inverter matches the installation method Refer to the Mounting Options section on page 6 Before installing review and follow all important safety instructions listed at the beginning of this manual Installing onto a PV Racking System Step 1 Measure AC Service at the Site Measure service entrance conductors to confirm AC service at the site Verify that the AC voltages at the electrical utility connection and at the junction box for each AC branch circuit are within the ranges Step 2 Install the AC Branch Circuit Junction Box 2 1 Mount the adapter plate to a suitable location on the PV
15. almer renina Europe Andorra 2 America America Europe Mariehamn America America America Europe Athens America E America Asia Bahrain America Asi America America America America New Salem Antarctica Ametica Indian Maldives America Vancouver Asia Dhaka 46 America Los Angeles z 5 1 amp amp h Q gt 4 Antarctica 30 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL Rev 02 2013 Darfon America Corp 31 Page MIG240 MICRO INVERTER INSTALLATION MANUAL DARFON Manufactured by Darfon Electronics Corp ud 167 Shan ying Road Gueishan Taoyuan 333 Taiwan R O C Tel 886 3 2508800 www darfon com US Office Darfon America Corp 3031 Tisch Way Suite 610 San Jose CA 95128 Tel 1 408 260 3880 32 Page 2013 Darfon America Corp 02
16. efault GMT is Taipei Refer Time zone reference city table input matches the time zone of the city name Please note that the bottom line and lower case letters Rev 02 02013 Darfon America Corp 29 Page MIG240 MICRO INVERTER INSTALLATION MANUAL Time zone reference city table UTC Europe Brussels l Bangkok Antarctica Casev i lt Australia Perth Western N Asia t gt Europe Zurich Shanghai I oC urope Prague aipel D s 1 ucla Western Brunei urope Berlin gt Europe Copenhagen l jurope jurope Durop Europe Luxembourg Longyearbyen rop Vatican Australia Hobart 10 Australia 10 Australia Melbourne 10 Australia sydney 10 Australia Australia Lindeman 10 Argentina Jujuy lt 3 Guam 10 Argentina Tucuman Australia LodHow 40 Argentina La Rioja Antarctica Argentina San Jun SC Antarctica Argentina Mendoza Argentina Rio Gallegos 12 Asia Tokyo Seoul 1 x O s tA t Broken Hill Adelaide Australia Darwin London Dublin Lisbon Honolulu Pacific ago Pago Argentina Buenos Aires _ 14 i I ustralia 17 I ate tra tT tT a a r ou L q 2 ft I Argentina Cordoba Argentina Salta Antarctica P
17. ines or was based on them There is a PDF manual for these models and this embedded link opens in new tab window will open it Go to page 14 get into the router then go to page43 if the embedded link is not working please refer to address as below http www1 arrisi com staticfiles Support US EN Home and Office DSL Modems and Gateways 2210 02 10NA ADSL2 Residential Gatewayy Documents Static Files 2210 02 10NA_AdminHandbook_v784 pdf Step 0 Run a Web browser such as Mozilla Firefox or Microsoft Internet Explorer Enter htto 192 168 1 254 in the URL Address text box A h1p 192 168 1 254 The user name password should be admin admin Otherwise you have to contact with the ISP Netopia 3000 User rame F admin Password TTIT Remember my password 24 Page 02013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL otep1 Key in the service name as data logger Once you choose a software service or game click Enable NAT Games and Other Services This page allaws you to host games and other services over an Internet Connection Service Name Age of EData logger n f Enable MDelete Edit x denotes custom service Define Custom Service Static NAT otep 2 Key in the IP address on display of data logger Then Enable Enable Service Service Name Age of Empires v 1 0 Select Host Device 192 168 1 33 F Enable Cancel Step
18. ion Global Port Range 23 BE Base Host Port Protocol TCP UDP Oh JA x 7 Next Back Cancel Use those instructions as a guide if it s somewhat similar Rev 02 02013 Darfon America Corp 27 Page MIG240 MICRO INVERTER INSTALLATION MANUAL Time server Setting manual Step 1 Login the system Solar Solution The default ID is user default Password is user Step 2 Select Other DARFON Solar Solution Welcome Darfon Data Logqer Your IF 196 214 88 148 Local Time 2013 8 20 14 42 47 Monitor System Setting Single view Network setting Graph View Wireless setting P4 Event Log Email setting Setting System event Other 28 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL Step 3 Key in Time server CE E d 7 oye S a q RLW A eer I xj umm jg Other Time setting s Date Time 2013 08 20 i0 r oo Language English Chinese Buzzer Setting On off Time Time server 220 130 158 71 Time update on Off Default Time Server is 220 130 158 71 w Step 4 Key in GMT Other o Time setting NU IMEEM Date Time 2013 08 20 10 M 09 ex 2012A Language English Chinese Buzzer al Setting On Off Time 32 Time server 220 130 158 71 GMT Johannesburg Time update On Off i D
19. ions WxHxD Natural Convention No Fans Outdoor NEMA 6 2 2 Qa c Enclosure Environmental Rating Powerline EN 61000 6 2 EN 61000 6 3 FCC Part15 Class B UL 1741 IEEE 1547 O O O O 3 3 o 3 2 2 O D D ct O 2 Extended frequency range available to serve local markets 18 Page 02013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL DARFON MICRO INVERTER INSTALLATION MAP Please print this page E Cc Oc o2 c G E O 5 q ec 2 a c 9 o i B gt c O DARFON 2013 Darfon America Corp 19 Page D lt O N MIG240 MICRO INVERTER INSTALLATION MANUAL SAMPLE WIRING DIAGRAM Small system lt 25 Mls 240 VAC single phase with monitoring system i a Usually in the house Junction Box Meter 2 pole of 30 Amp breaker 20 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL SAMPLE WIRING DIAGRAM communication system installation If the system is less than 25 Mls as below in the figure Darfon suggests putting the PLC Box in the center of the strings to improve communication Bad Layout i 1 Good Layout a PIC in AC Box Junction Box With PEC PLC Box inthe center of the string of Mis If you have 20 Mis in a string then you need to connect the PLC Box at per branch circuit Maximum Distance 400 meters Notice need
20. nd it will need to be adjusted accordingly The layout will also need to account for the constraints of the distance between each PV module due to the cable length House Circuit E Disconnect Breaker Box Switch near meter PV Feed In y 240V AC Circuit Junction box Breaker f atPVarray DARFON 240V AC Micro Inverter f j j j DC from 7 i ii RS 485 PV Panel Ethernet X I PV Panel E u Data X Logger PLC BOX Compatibility and Capacity Darfon MIG240 micro inverters are electrically compatible with PV modules that have a voltage range of 24V 40V and a maximum wattage of 260W For more information refer to the Technical Specifications section on page 18 For a list of electrically compatible PV modules and racking systems refer to the Darfon website at www darfonsolar com Before ordering the PV module connector make sure the connector type is compatible with both the micro inverter and PV module Electrical Compatibility Model PV MPPT Voltage Range PV Module Connector Type MIG240 24V 40V MC 4 Locking Tyco Solarlock Locking or Amphenol H4 Locking DC Voltage and Capacity Maximum number of MIG240s per AC Branch Circuit Overcurrent Protection 240V with 10AWG AC Trunk Cable 30Amp Breaker 240V with 12AWG AC Trunk Cable 20Amp Breaker WARNING DO NOT exceed the maximum number of micro inverters in an AC branch circuit as listed above
21. nd or strain relief fitting The AC trunk cable requires a strain relief connector with an opening of 1 6 cm 0 6 in in diameter The wires in the AC trunk cable are identified by color L1 is sheathed in Black L2 is sheathed in Red Neutral is sheathed in White and Ground is sheathed in Green WARNING Although the AC trunk cable includes a grounding wire the continuous grounding conductor or grounding washers is still required Step 11 Connect Monitoring System Optional The monitoring system requires additional equipment PLC box and data logger For more information on the monitoring system refer to the PV Monitoring System user s manual 14 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL POST INSTALLATION WARNING Changes to your electrical system should be carried out only by qualified electricians WARNING Do not attempt to repair this product it does not contain user serviceable parts Repairs and internal servicing should only be performed by Darfon authorized service personnel Commissioning and Operating Step 1 Step 2 Step 3 Turn on the AC disconnect of the circuit breaker from each micro inverter AC branch circuit Turn on the main utility grid AC circuit breaker Your system will start producing power after five minutes Optional Monitoring System Depending on the strength of the signal it can take up to 2 hours before the monitoring system detect all the micro inve
22. p WARNING Ensure the AC trunk cable and terminator do not touch the roof by using cable clips or tie wraps to attach the AC trunk cable to the PV racking Ensure that all cabling is located underneath the PV module Step 7 Place the PV Module on to the PV Racking Step 8 Ground the Micro Inverters Unscrew the top of grounding clips on the micro inverters Run the grounding electrode conductor to each grounding clip on the micro inverter and then to the junction box After laying out the grounding conductor secure the top of the grounding clips back onto the micro inverters WARNING Correct AC grounding and short circuit protection must be provided to ensure operational safety Rev 02 2013 Darfon America Corp 13 Page MIG240 MICRO INVERTER INSTALLATION MANUAL Step 9 Connect the Micro Inverters to the AC Trunk 9 1 Remove the temporary shipping cap from the t branch on the AC trunk cable and connect the micro inverter Ensure the connection is secure and locked into place Depending on the trunk cable s manufacturer the locking mechanism will vary 9 2 Repeat for all micro inverters in the AC branch circuit 9 3 For any unused connectors on the AC trunk cable replace the temporary shipping cap with a sealing cap Listen for a click as the sealing cap is connected to ensure that it is securely locked into place Step 10 Connect the AC Junction Box Connect the AC trunk cable to the AC junction box using the appropriate gla
23. reakers before installation and wirings e For the safety of installation remove all conductive jewelry or equipment during the installation or service of the device parts connector and or wiring e Do not stand on a wet location while doing installation and wirings Enclose the outer covering well before switch on the circuit breakers e MIG240 inverters should be installed as instructed in this manual Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the device The manufacturer assumes no liability for the customer s failure to comply with these requirements 4 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL ABOUT DARFON MICRO INVERTERS General Overview Thank you for choosing Darfon s MIG240 micro inverters as a key component to your solar power system The MIG240 converts DC power generated by the solar module to AC power powers your home appliances The Darfon micro inverter is installed to the back of each solar module and connects to the electricity grid without the need for a string or central inverter The AC output from MIG240 micro inverter is synchronized and in phase with the electricity grid Advantages of Darfon Micro Inverters Optimal Energy Harvest Darfon s micro inverters maximize the power produced from your Photovoltaic PV array This is accomplished by Ma
24. rters in the PV system For more information on the monitoring system refer to the PV Monitoring System user s manual support darfon com Troubleshooting If the PV system is not operating correctly use the steps in this section to troubleshoot the problem If the issue cannot be corrected using the steps in this section please contact a Darfon authorized service personnel LED Indicators LED Status Description Depending on the position location of the installed micro inverter the use of handheld l Orange a s mirrors may be needed If the micro inverter s Solid Orange Minimum Start Voltage Met LED indicator is not showing a color or is solid Green Operating MPPT Grid Mode On flashing red follow these steps Flashing Green Operating Over Maximum Wattage Step 1 Verify that the AC voltage and Q Solid Red Not Operating Low Voltage frequency in the connection to the utility grid are in the appropriate o Flashing Red 0 5 Hz Restarting Minimum Voltage Met ranges Ranges are in the Technical Halt Manually Calibration or Specifications section on page 18 e Flashing Red 2 Hz Flash Programming Step 2 Rev Verify that the AC voltages at the electrical 240 Volt AC Single Phase utility connection and at the junction box for each AC branch circuit are within the ranges L1 to L2 211 to 264 VAC L1 L2 to neutral 106 to 132 VAC 02 2013 Darfon America Corp 15 Page MI
25. ter Step 6 Remove the micro inverter from the PV racking 16 Page 2013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL WARNING Do not leave the T branch connector on the AC trunk cable exposed for an extended period of time If the removed micro inverter will not be replaced with another micro inverter immediately connect a sealing cap to the T branch connector Rev 02 2013 Darfon America Corp 17 Page MIG240 MICRO INVERTER INSTALLATION MANUAL TECHNICAL SPECIFICATIONS MIG240UL00 Input Data DC o Up to 260W 240W Recommended Maximum Input Power STC Nominal Input Power Maximum Input DC Voltage O c et c J P 9 Maximum Peak Power Tracking Voltage 24 40V Minimum Start Voltage 24V Maximum DC Short Circuit Current 12A Maximum Input Current 10A 220W 245W 0 917A 240 211 264 V 60 59 3 60 5 Hz 20 95 25 Single Phase Maximum Continuous Output Power Maximum Peak Output Power Nominal Output Current Nominal Voltage Range Nominal Frequency Range Power Factor Maximum Units per 30A Branch Circuit Efficiency 95 796 9596 9996 5imW Peak Inverter Efficiency CEC Weighted Efficiency Nominal MPP Tracking Night Time Power Consumption Mechanical Data 40 C to 65 C 40 C to 85 C 8 7 x 5 1 x 1 5 in 220 x 130 x 37mm 5 5 Ibs 2 5 kg Ambient Temperature Range Operating Temperature Range Internal Dimens
26. to one ratio Step 10 Connect Monitoring System Optional The monitoring system requires additional equipment PLC box and data logger For more information on the monitoring system refer to the PV Monitoring System user s manual Rev 02 2013 Darfon America Corp 11 Page MIG240 MICRO INVERTER INSTALLATION MANUAL Installing onto the back of a PV Module Step 1 Measure AC Service at the Site 240 Volt AC Single Phase Measure service entrance conductors to confirm AC service at the site Verify that the AC voltages at the L1 to L2 211 to 264 VAC electrical utility connection and at the junction box for Li 12 to neutral 106 to 132 VAC each AC branch circuit are within the ranges Step 2 Attach the micro inverter to the PV module 2 1 Using the micro inverter as a reference mark the location on PV module frame where it needs to be drilled 2 2 Drill the holes into the PV module frame using M5 5 drill bit 2 3 Insert the M4 support bolts x3 Note Each M4 support bolt has adhesive to secure it to the PV module frame Be sure to remove the liner from the adhesive before inserting the bolts 2 4 Place the micro inverter onto the PV module and secure it to the M4 bolts Step 3 Connect the PV modules Connect the micro inverter DC cable to the PV module s DC cable The micro inverter and PV module s DC cables have two connectors Connect the micro inverter positive connector to the PV module negative connector and
27. verter s AC connector can easily reach the T branch connector Rev 02 2013 Darfon America Corp 9 Page MIG240 MICRO INVERTER INSTALLATION MANUAL Step 5 Ground the Micro Inverters Unscrew the top of grounding clips on the micro inverters Run the grounding electrode conductor to each grounding clip on the micro inverter and then to the junction box After laying out the grounding conductor secure the top of the grounding clips back onto the micro inverters GROUNDING 4 WARNING Correct AC grounding and short circuit protection must be provided to ensure operational safety Step 6 Connect the Micro Inverters 6 1 Remove the temporary shipping cap from the t branch on the AC trunk cable and connect the micro inverter Ensure the connection is secure and locked into place Depending on the trunk cable s manufacturer the locking mechanism will vary Correctly Locked Not Locked Note the gaps 6 2 Repeat for all micro inverters in the AC branch circuit 6 3 For any unused connectors on the AC trunk cable replace the temporary shipping cap with a sealing cap Listen for a click as the sealing cap is connected to ensure that it is securely locked into place 10 Page 02013 Darfon America Corp Rev 02 MIG240 MICRO INVERTER INSTALLATION MANUAL Step 7 Terminate the Unused End of the AC Trunk Cable 7 1 Strip 10mm about 0 5in of the outer sheath from the end of the AC trunk cable 7 2 Each terminator
28. ximum Power Point Tracking MPPT which monitors performance and maximizes the power harvested from each solar module under varying environmental conditions The performance of an individual PV module may be affected by module mismatch shading cause by trees or chimneys or obstruction from leaves or other debris With MPPT if the performance of an individual PV module is reduced it does not impact the performance of other PV modules in the array This typically results in improved power harvest of up to 20 from the solar PV system and represents a significant cost performance advantage Improved Safety Darfon micro inverters convert DC power to AC at each solar module thus eliminating the need for high voltage DC wiring and making the solar system intrinsically safer By eliminating DC wiring specialized DC practices and equipment are not required for installation Increased Lifetime and Reliability Darfon micro inverters are more reliable and have a longer life cycle than the traditional string or central inverters Typically string central inverters will need to be replaced at least once over the lifetime of the solar module adding significantly to the overall cost of the solar PV system Darfon s solar micro inverters are designed to operate in real world conditions and achieve a peak efficiency of 95 796 for temperatures between 40 C 40 F and 65 C 150 F without degradation of performance The micro inverter housing is designed
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