The Enphase Microinverter System
Contents
1. Maximum AC output Power 40 to 65 C M190 models M210 models Output power factor Nominal AC output voltage range M190 72 240 S1x M190 72 208 S1x M210 84 240 S1x M210 84 208 S1x Extended AC output voltage range M190 72 240 S1x M190 72 208 S1x M210 84 240 S1x M210 84 208 S1x Maximum AC output current M190 72 240 S1x M190 72 208 S1x M210 84 240 S1x M210 84 208 S1x Nominal AC output frequency range Extended AC output frequency range Maximum AC output over current protection Maximum AC output fault current 8 duration High AC Voltage trip limit accuracy Low AC Voltage Trip limit accuracy Frequency trip limit accuracy Trip time accuracy Maximum inverters per AC branch circuit M190 72 240 S1x M190 72 208 S1x M210 84 240 S12 M210 84 208 S12 Peak inverter efficiency M190 models M210 models CEC weighted efficiency M190 models M210 models Nominal MPP tracking efficiency M190 models M210 models Total Harmonic Distortion Operating temperature range Night Tare Loss M190 72 240 S1x M190 72 208 S1x M210 84 208 S12 M210 84 240 S12 Storage temperature range e wle O glo o ula Sa N w NIN gt gt gt gt pa O O O N O gt I UI e N l H I O A N N O 3 H W W n O oo SS oo SS O O SIS X o o Olo I O D Ul Copyright Enphase Energy Inc 2011 1 264 229 264 229 269 232 269 232 900 1040 995 1147 60 5 60 6 15 A2. e enphase ENERGY a The Enphase Microinverter System The Enphase Microinverter System is the world s most technologically advanced inverter system for use in utility interactive applications This manual details the safe installation and operation of the Enphase Microinverter The three key elements of an Enphase Microinverter System are e the Enphase Microinverter the Enphase Envoy Communications Gateway the Enphase Enlighten web based monitoring and analysis system This integrated system maximizes energy harvest increases system reliability and simplifies design installation and management Enphase Microinverter System e installed on the racking beneath each solar module e maximizes energy harvest AC power travels over AC wiring to the load center e performance data is also sent via the AC wiring e plug and play communications 6 Envoy Communications Gateway e plugs into any AC outlet e collects information via the AC wiring e transmits data through a standard ethernet router to the internet O Standard Ethernet Router e information collected by the Enphase Envoy is then transmitted to Enlighten in 5 minute intervals O Enphase Enlighten Monitoring e provides moniforing and analysis e performance information can be viewed from any web browser Page 5 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y How the Microinverter Works The Enphase Microinverter
3. WARNING Always disconnect AC power before disconnecting the PV module wires from the Enphase Microinverter The AC connector of the first microinverter in a branch circuit is suitable as a disconnecting means once the AC branch circuit breaker in the load center has been opened WARNING The Enphase Microinverters are powered by DC power from the PV modules Make sure you disconnect the DC connections and reconnect DC power to watch for the six short LED blinks one minute after DC is applied Troubleshooting an Inoperable Microinverter To troubleshoot an inoperable microinverter follow the steps in the order shown 1 Page 17 A Check the connection to the utility grid Verify that the utility voltage and frequency are within allowable ranges shown in the Technical Data section on page 19 of this manual Verify utility power is present at the inverter in question by removing AC then DC power Never disconnect the DC wires while the microinverter is producing power Re connect the DC module connectors After one minute watch for six short LED blinks Check the AC branch circuit interconnection harness between all the microinverters Verify that each inverter is energized by the utility grid as described in the previous step Make sure that any AC disconnects are functioning properly and are closed Verify the PV module DC voltage is within the allowable range shown in the Technical Data section on page 19 of this manual
4. 0 788Arms over 3 cycles 0 784Arms over 5 cycles 4Apeak 50us duration 65 141 00007 Rev 10b eee RG Y Dimensions approximate 8 x5 1 4 x 1 1 4 Weight 4 4 Lbs Enclosure environmental rating NEMA 6 Cooling Convective no fan AC Cable Rating TC ER 14 AWG Dry rated to 90 C UV resistant crush resistant direct burial DC Cable Rating USE 2 10 AWG Communication Power line GFDI A GFI sensor is internal to the microinverter and meets UL 1741 Standard warranty term 15 years Compliance UL 1741 IEEE 1547 FCC Part 15 Class B Integrated AC Disconnect The AC connector has been evaluated and approved for use as the load break disconnect reguired by the NEC Integrated DC Disconnect The DC connector has been evaluated and approved for use as the load break disconnect reguired by the NEC Balanced 208 VAC is accomplished by alternating phases between microinverters Enphase Microinverter output is grid compliant according to IEEE 1547 Enphase Microinverters are reguired to detect and sync to the utility sine wave For each connected phase line the microinverter measures line to neutral voltage and freguency to ensure the utility is within acceptable limits 106 to 132 Vac Simulated utility source Maximum time sec Condition cycles at 60 Hz before Voltage V Frequency Hz cessation of current to the simulated utility 0 16 2 1 0 16 0 16 0 16 300 0 16 Page 21 Copyright
5. a Installation and Operations Manual Enphase Microinverter Models Mi90 and M210 a Contact Information Enphase Energy Inc 201 1 Street Petaluma CA 94952 http www enphaseenergy com info enphaseenergy com 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 the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e 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 equ
6. Check the DC connections between the microinverter and the PV module If the problem persists please call customer support at Enphase Energy WARNING Do not attempt to repair the Enphase Microinverter it contains no user serviceable parts If troubleshooting methods fail please return the microinverter to your distributor for maintenance Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y a Disconnecting a Microinverter from the PV Module To ensure the microinverter is not disconnected from the PV modules under load adhere to the following disconnection steps in the order shown I 2 3 4 Disconnect the AC by opening the branch circuit breaker Disconnect the first AC connector in the branch circuit Cover the module with an opaque cover Using a DC current probe verify there is no current flowing in the DC wires between the PV module and the microinverter Care should be taken when measuring DC currents most clamp on meters must be zeroed first and tend to drift with time Disconnect the PV module DC wire connectors from the microinverter Remove the microinverter from the PV array racking Installing a Replacement Microinverter 1 Attach the replacement microinverter to the PV module racking using hardware recommended by your module racking vendor If you are using grounding washers e g WEEB to ground the chassis of the microinverter the old grounding washer should be discarded
7. and a new grounding washer must be used when installing the replacement microinverter Torgue the microinverter fasteners to the values listed below e 1 4 mounting hardware 45 in lbs minimum 5 16 mounting hardware 80 in lbs minimum If you are using a grounding electrode conductor to ground the microinverter chassis attach the grounding electrode conductor to the microinverter ground clamp Connect the AC cable of the replacement microinverter and the neighboring microinverters to complete the branch circuit connections Energize the branch circuit breaker and verify operation of the replacement microinverter by checking the indicator light Initiate a device scan at the Envoy To do this press and hold the Menu button on Envoy for two seconds to bring up the Envoy menu on the LCD window When the LCD window displays Enable Communication Check release the Menu button Use Enlighten s Array Builder function to add the newly detected microinverter to the virtual array A NOTE Go to http www enphaseenergy com support learningcenter cfm Page 18 to view an Array Builder demo Copyright Enphase Energy Inc 2011 141 00007 Rev 10b o enphase RGY mit Technical Data Technical Considerations Be sure to verify the voltage and current specifications of your PV module match with those of the microinverter For more information refer to the Enphase website http www enphaseenergy com support downloads cf
8. WARNING Size the AC wire gauge to account for voltage drop All components of system wiring must be considered including internal voltage drop within the length of ETD cabling Use the voltage drop charts at http www enphaseenergy com support downloads cfm to select the correct wire size based on the distance from the beginning of the microinverter branch circuit to the breaker in the load center NEC guidelines for voltage WARNING Make sure protective end caps have been installed on all unused AC connectors Unused AC microinverter wire harness connectors Page 12 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b Page 13 e enphase ENERO drop on feeder and branch circuit conductors will not be adequate for microinverter branch circuits that contain the maximum allowable microinverters Refer also to our Voltage Drop Calculations Application Note at http www enphaseenergy com support downloads cfm Step 4 Ground the System If you are not using grounding washers to ground the microinverter chassis as described in step 2 follow the step below Each Enphase Microinverter comes with a ground clip that can accommodate a 6 8 AWG conductor a Route a continuous GEC through each of the microinverters to the NEC approved AC grounding electrode The racking and module could be grounded to this conductor using a crimp connection An alternative method would be to connect the microinverter to the grounded racking using a g
9. YM 0087 Xxarddy IvA drz LINDH HONVYYA M3d SYILMIANI OYDIW Z1S OP7 P8 0LZW El OLAN YO WN XLS ObZ ZL 06LW St OLAN X1S ObZ TL 061W SI OL dN WM 0087 xowddy IVAO ObZ LINDHIO HN HA 43d SYILMIANI OY IIN TIS ObT 4B 0ITW EL OLN YO YNXLS ObT ZL 061W SI OLAN XLS 0 7 ZL O6LW SL OL AN HINVIYA LUNDH dWW St 3104 Z gt Ba E Bu ve man kd TT N 1 O E le WWILNIN 3018 QISANN JIONYYO La X 038 ilag Head ja jakaa pra dra ayy Mounn d t L1 Ov8 Hage Gut BOU Koko t bac PUC SAM K FIBYI LIINNODUHJINI DW ISYHANI a na ye phere em 141 00007 Rev 10b Copyright Enphase Energy Inc 2011 Page 25 RG Y E MANB TWA 1008 00 T S mi l SYON 335 KS IA TEI 01901 Jemnau 01 7 ZI 1 Jen6GZZ 01 81 10171911 Z1IS SOZ TR OLZIN K1S BOT TL O61W i prevent saue Guoga ayi UY WA 39 PINOYS SPOLU JAYMA pa3e Jen GOT ayi 104 ISVHd JIYHI JVA BOT w aun soumi sabeyon 3u wdinba vonessyab Jejos Aue Buyjeysul 03 Jord sa01anpuod aoueprus anjinas WYONG NIIN O 14 m v Beyon ay jos MIeIsui 03 JO puo aan BNR we AHNWIT 4 Wiser N 9 ETH pren ri moun enphase E N SILON 335 OYE ao ie yo a6eyon eANaN O1 3UN pue aun a 3ui aya ainseaW NOK Jeyi ans AEW 1 NWIMOJWI E w X BASIE TAN Ye BS BO SOON3N SIVUN LAVA E 1 DI wm JAN AVA IV VIMOS HA OLI avd NOUNANISIO De El ann in HILNOH aNVBOYOUS OL AVMIIV9 SNOLLVOINNININOD AOANI i 3719V2 13N43H13 HId SHILHIANI OHIW ost OL
10. microinverter in each branch with its male connector facing the junction box The junction box AC interconnect cable has a female connector The microinverter can be mounted with either side facing up to accommodate cable routing Connect the first microinverter to the AC interconnect cable All AC interconnect cables have four conductors Wire them as follows depending on your microinverter model 240 VOLT AC 208 VOLT AC SPLIT PHASE WIRING THREE PHASE WIRING BLACK L1 BLACK L1 RED L2 RED L2 ORANGE UNUSED ORANGE L3 BLUE NEUTRAL BLUE NEUTRAL PIN 1 BLACK PIN 2 BLUE PIN 3 RED PIN 4 ORANGE b Plug the AC connector of the first microinverter into the connector of the next microinverter and so forth to form a continuous AC branch circuit Please check the microinverter rating label for the maximum allowable number of microinverters on one AC branch circuit NOTE The AC and DC connectors of each microinverter have been evaluated and approved for use as the load break disconnect as required by the NEC WARNING Do NOT exceed the maximum number of microinverters in an AC branch circuit as displayed on the unit rating label Each microinverter AC branch circuit must be sourced from a dedicated branch circuit protected by a 15A maximum breaker c Install a protective end cap on the open AC connector of the last microinverter in the AC branch circuit are live when the system is energized by the utility system
11. records Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y a Connect the PV Modules GY NOTE Completely install all microinverters and all system inter wiring connections prior to installing the PV modules a Mount the PV modules above their corresponding microinverters Each microinverter comes with two oppositely sexed DC connectors b First connect the positive DC wire from the PV module to the negatively marked DC connector male pin of the microinverter Then connect the negative DC wire from the PV module to the positively marked DC connector female socket of the microinverter Repeat for all remaining PV modules using one microinverter for each module Step 6 Build the Virtual Array In this step you will create the virtual array in Enlighten from the map you created in the last step Once the virtual array is built Enlighten displays a graphic representation of the PV system It also shows detailed current and historical performance information Please go to www enphaseenergy com for more information on the Enphase Enlighten web based monitoring and analysis a Use Array Builder to create the virtual array in Enlighten GY NOTE Go to http www enphaseenergy com support learningcenter cfm to view an Array Builder demo b If you do not already have an account please go to http www enphaseenergy com for more information on the Enphase Enlighten web based monitoring and analysis
12. voltage from the module is applied The status LED will flash green six times one minute after DC power is applied These green blinks indicate proper start up Y NOTE In the event of a GFDI failure the status LED will display continuous red after the fault occurs This will persist when AC and DC power are cycled to the microinverter Refer to page 16 for information on troubleshooting a GFDI condition You can also verify proper operation of the Enphase Microinverters via the Envoy See the Envoy Communications Gateway Installation and Operation Manual for more information Page 15 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y Troubleshooting Page 16 Adhere to all the safety measures described throughout this manual Qualified personnel can use the following troubleshooting steps if the PV system does not operate correctly WARNING Do not attempt to repair the Enphase Microinverter it contains no user serviceable parts If it fails please contact Enphase customer service to obtain an RMA number and start the replacement process Status LED Indications and Error Reporting Each Enphase microinverter has an LED that indicates status as follows LED Indicator Startup LED Operation One minute after DC power is first applied to the microinverter six short green blinks indicate a successful microinverter startup sequence Six short red blinks after DC power is first applied to the m
13. AN LINDUID KINYYA Yad n HINVIYI UNDYDD SHOLIINNOI JW ONILIINNOISIA OL KONYY dWW 51 310d E 1 QIN3JO 39 OINOHS HINVIYI HILNJI AVOI IV IHL SNY3W 9NILIINNOISIO Y SY JIIGYLINS SI LINDO KINYYAE HIVI NI YOLIFNNOD DW 15814 JHL e 208 W 3 3SWHd av 3SVHd l DM 007p kouddy JWA 807 O N UNDYDD KINYYI Yad TIN VA SHILUINNI OHDIW BUIN E NOLNARLSIO DW YO N X1S 80Z PB OLZW BL OLAN a K o va HIIW OL I YO WN XLS SOZ ZLZ OGLIW 17 OL dN X15 8907 7L 061W IZ OL dN M190 LINDO HONVHS 40 TIO BILYIANI LSVI NO GITIVISNI AVION lagram D iring 0910 W TEDOK YN BOU GRIYO Me asm W Mawon W ni If gt i WALNAN 319 anemi w ERIN K E1 JONVYO I a re HOM WH CENTS 771 034 inj sitye yo java pa aida an pogas Ipit i w A ii 11 40V18 p en an e a a we W FTIGYI 1IINNODUJINI DV ISVHANI lo m pA ppe arar A U a E V 141 00007 Rev 10b Copyright Enphase Energy Inc 2011 Page 26 ener RG Y Enphase Energy Inc 201 1 Street Petaluma CA 94952 www enphaseenergy com info enphaseenergy com
14. Enphase Energy Inc 2011 141 00007 Rev 10b OO nmnmoolo e enphase RG Y Appendix Page 22 Limited Warranty Enphase Energy Inc Enphase has developed a highly reliable microinverter that is designed to withstand normal operating conditions when used for its originally intended purpose in compliance with the Enphase User Manual supplied with the originally shipped system The Enphase limited warranty Limited Warranty covers defects in workmanship and materials of the Enphase microinverter Defective Product for a period of fifteen 15 years from the date of original purchase of such microinverter at point of sale to the originally installed end user location the Warranty Period During the Warranty Period the warranty is transferable to a different owner as long as the microinverter remains installed at the originally installed end user location During the Warranty Period Enphase will at its option repair or replace the Defective Product free of charge provided that Enphase through inspection establishes the existence of a defect that is covered by the Limited Warranty Enphase will at its option use new and or reconditioned parts in repairing or replacing the Defective Product Enphase reserves the right to use parts or products of original or improved design in the repair or replacement of Defective Product If Enphase repairs or replaces a Defective Product the Limited Warranty continues on the repair
15. INFRINGEMENT OR WARRANTIES AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN MANUALS OR OTHER DOCUMENTATION IN NO EVENT WILL ENPHASE BE LIABLE FOR ANY SPECIAL DIRECT INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT LIMITATION ANY ECONOMIC LOSSES OF ANY KIND ANY LOSS OR DAMAGE TO PROPERTY OR ANY PERSONAL INJURY To the extent any implied warranties are required under applicable law to apply to the Enphase microinverter such implied warranties shall be limited in duration to the Warranty Period to the extent permitted by applicable law Some states and provinces do not allow limitations or exclusions on implied warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential damages so the above limitation s or exclusion s may not apply This Limited Warranty gives the customer specific legal rights and the customer may have other rights that may vary from state to state or province to province Page 23 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b a ajaa 10 6 a n c U n a c LLI 193US OL 0 NOISIAJY 0000 0p1 YIIWNN IN3WADOO QUO M3SN dVW NOILVTIVISNI A 9 Y 3 aseudue UONeUW OUI 19 21SU J99ys OL j9qe7 jenas onuy uoneuojui lawosn5 193US OL yapying Aely uayybi
16. Page 14 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase a Commissioning A A A y WARNING Connect the Enphase Microinverter to the electrical utility grid only after receiving prior approval from the utility company WARNING Be aware that only qualified personnel must connect the Enphase Microinverter to the electrical utility grid WARNING Ensure that all AC and DC wiring is correct Ensure that none of the AC and DC wires are pinched or damaged Ensure that all junction boxes are properly closed NOTE The Status LED of each microinverter will blink green six times to indicate normal start up operation one minute after DC power is applied To commission the Enphase Microinverter PV system 1 Turn ON the AC disconnect or circuit breaker on each microinverter AC branch circuit Turn ON the main utility grid AC circuit breaker Your system will start producing power after a five minute wait time The Enphase Microinverters will start to send performance data over the power lines to the Envoy The time required for all the microinverters in the system to report to the Envoy will vary with the number of microinverters in the system The first units should be detected within 15 minutes but the entire system could take hours to detect Please refer to the Envoy Installation and Operation Manual for information on the Envoy Operating Instructions The Enphase microinverter is powered on when sufficient DC
17. conductors may be ungrounded and energized when a ground fault is indicated Parts Included In addition to the microinverters PV modules racking and associated hardware you ll need the microinverter installation kit This kit includes the following items e Protective end cap e Mounting Bracket adapter plate e AC interconnect cable 6 foot length Other Parts and Tools Required In addition to your PV array and its associated hardware you will need to provide the following e Junction box Continuous grounding conductor grounding washers Number 2 Phillips screwdriver Sockets wrenches for mounting hardware Torque wrench Mounting hardware suitable for module racking Lightning Surge Suppression Lightning does not actually need to strike the equipment or building where PV system is installed to cause damage Often a strike nearby will induce voltage spikes in the electrical grid that can damage equipment Enphase Energy Microinverters have integral surge protection greater than most string inverters However if the surge has sufficient energy the protection built into the Microinverter can be exceeded and the equipment can be damaged Since the Enphase Limited Warranty does not cover acts of God such as lightning strikes and since lightning strikes can occur anywhere it is best practice to install Surge protection as part of any solar installation We recommend the following protection device It has been tested to ensur
18. ding washer that is approved for the racking manufacturer Install a minimum of one grounding washer per microinverter Torque the microinverter fasteners to the values listed below e 1 4 mounting hardware 45 inlbs minimum e 5 16 mounting hardware 80 inlbs minimum Compatible grounding washer part numbers are included in the Racking Compatibility Application Note Installation guidelines are included in the Grounding Washer Application Note Refer to both documents at http www enphaseenergy com support downloads cfm c Mount one microinverter at each of these locations using hardware recommended by your module racking vendor Mounting slots on the microinverter are 0 33 inches in diameter Maximum bolt size is 5 16 inch The two slots on the microinverter are 4 inches apart Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase ENERO Y Step 3 Connect the Microinverter Wiring Harnesses Each microinverter comes with one 4 pin bulkhead receptacle or short pigtail and one 70 inch AC wire harness with multi pin connectors The DC input wires are approximately six inches long and are terminated with single pole connectors The AC connectors are oppositely sexed so that multiple inverters can be connected to form one continuous AC branch circuit When you perform this step refer to the wiring diagram for your microinverter model These diagrams are located in the Appendix of this manual a Orient the first
19. e at full power at ambient temperatures as high as 65 C 150 F The microinverter housing is designed for outdoor installation and complies with the NEMA 6 environmental enclosure rating standard NEMA 6 rating definition Indoor or outdoor use primarily to provide a degree of protection against hose directed water and the entry of water during occasional temporary submersion at a limited depth and damage from external ice formation Ease of Design PV systems using Enphase Microinverters are very simple to design and install You will not need string calculations and you can install individual PV modules in any combination of module quantity type age and orientation You won t need to install cumbersome centralized or string inverters Each microinverter quickly mounts on the PV racking directly beneath each PV module Low voltage DC wires connect from the PV module directly to the co located microinverter eliminating the risk of personnel exposure to lethal 600Vdc power Page 6 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y Enphase Microinverter Models Mi90 and M210 The Enphase M190 microinverters are electrically compatible with most 60 and 72 cell PV modules The M210 microinverters are electrically compatible with most 72 and 84 cell PV modules For more information see the Technical Data section on page 19 of this manual Refer to the Enphase website http www enphaseenergy com support dow
20. e that it does not interfere with power line communications Install per vendor instructions Vendor Citel Part Number DS72RS 120 Application Residential 120 240V Split Phase where N G bond exists See the vendor datasheet for DS7OR which includes the DS72RS 120 at http www citelprotection com english citel data sheets ac protection For commercial sites contact Citel at http www citelprotection com for information on a unit to fit your needs Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y Installation Procedure Installing the Enphase Microinverter System involves several key steps 1 Measuring service and Installing the AC branch circuit junction box 2 Attaching the Enphase Microinverters to the racking 3 Connecting the Enphase Microinverter wiring harnesses 4 Grounding the system 5 Completing the Enphase installation map and Connecting the PV modules Each of the detailed installation steps in the following sections is numerically referenced in the installation diagram below WARNING DO NOT connect Enphase Microinverters to the utility grid or energize the AC circuit s until you have completed all of the installation procedures as described in the following sections SUPPORT DANGER DO NOT DISCONNECT CIRCUIT AKER KANT PARARE UNDER LOAD Page 10 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b gt bere RG Y Step 1 Install the AC Branch Circ
21. echnical Considerations Lwa teke ennan n nannan aaa anna naakka aa aan a nunnan nananana kaan a ana n nananana 19 TECHNICA DECH KIOS asevoimat ret Jusa aia 19 Enphase Microinverter Operating ParamMeteFS 0ccccccccccccnnccncnnnnnccnnnnnn rra aak nn ranas 19 Voltage and Frequency Limits for Utility Interaction eeeeeetrrreesasesronnoesssseronoeooos 21 AD D MON YO scientists 22 ERE SO N SPRAY eer er ae op ke or e a E ec ee 22 Enprase Installation Mabe 24 Sample Wiring Diagram M190 72 240 00cocccccccnnccnnnnnncccnnnn nn nr 25 Sample Wiring Diagram M190 72 208 00coccccnccccococcccoconcnaconnnnn rr rr rn ana nn naan aaaanaana 26 Page 3 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase d Important Safety Information Page 4 Read this First This manual contains important instructions to follow during installation and maintenance of the Enphase Microinverter User documentation is updated frequently Check the Enphase website http www enphaseenergy com support downloads for the latest information To reduce the risk of electrical shock and to ensure the safe installation and operation of the Enphase Microinverter the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions A WARNING This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction Use extreme caution and follow inst
22. ed or replacement product for the remainder of the original Warranty Period or ninety 90 days from the date of Enphase s return shipment of the repaired or replacement product whichever is later The Limited Warranty covers both parts and labor necessary to repair the Defective Product but does not include labor costs related to un installing the Defective Product or re installing the repaired or replacement product The Limited Warranty also covers the costs of shipping repaired or replacement product from Enphase via a non expedited freight carrier selected by Enphase to locations within the United States including Alaska and Hawaii and Canada but not to other locations outside the United States or Canada The Limited Warranty does not cover and Enphase will not be responsible for shipping damage or damage caused by mishandling by the freight carrier and any such damage is the responsibility of the freight carrier To obtain repair or replacement service under this Limited Warranty the customer must comply with the following policy and procedure All Defective Product must be returned with a Return Merchandise Authorization Number RMA which customer must request from Enphase Before requesting the RMA however the customer should contact an Enphase technical support representative to evaluate and troubleshoot the problem while the Enphase microinverter is in the field since many problems can be solved in the field If in field
23. h the Microinverters to the RackinQ oocccccccccnncncnnncncnnnnncc rr 11 Step 3 Connect the Microinverter Wiring HarneSSes c cece eeeeeeeeeeeee eee eenees 12 Step 4 Ground the System 1 rra 13 Step 5 Complete the Map and Connect the PV Modules ccceeeeeeeeeeeeeeeeeeeeees 13 Complete the Enphase Map sesionar 13 Alternative Create Your Own Map sssssssssssssrnnsrrnnsnrnnsnrerenrrrrnnsrrnnrrennenenn 13 Connect te V MOU S aceitera m ist 14 Step Build the Virtual Arrasate Hua ne 14 COMMISSIONING acme ri ke e a tk agotan ostia 15 Operating ASE YCUON ee tie on a etre sa ia e kse a kite e EARNE NENEREDE REENE T 15 MEOUDICSHOO UNG a wd ra apaw kk ak kana a names e en ak a kt pa en ee e e tt a e et Da pa DE pret pe e kS 16 Status LED Indications and Error Reporting tt tett tee ete aaa aaaaaaaaaesaseseeseeesesesestone 16 Startup LED Operation ac ke corer deseni ao eka one dede ae acencuseeceneuneedeucesuedeceoeunes 16 Post Startup LED IndicationS i rain 16 GRDIAFQUIL serer E N DEL 16 Other PAHIES rro opte coca 17 Troubleshooting an Inoperable MiCrOiNVerter oooccccccccccccccnncccnnnnnnnnnn nn kaka r rr 17 Disconnecting a Microinverter from the PV MOdUIe ssooooo onnaa annakaan nananana 18 Installing a Replacement MiCroinVEFNtEK vie lele let kk atanta nana ae aaa aaa aaaaaaaasseseseeeeesesestttooe 18 technical Dat toi kota it kat ia a a a ko ap at e ip n l UN ko e tk a a e kap A tet te A AET 19 T
24. icroinverter indicate a failure during microinverter startup Post Startup LED Indications Flashing Green Producing power and communicating with Envoy Flashing Orange Producing power and not communicating with Envoy Flashing Red Not producing power GFDI Fault A solid red status LED when DC power has been cycled indicates the microinverter has detected a ground fault GFDI error The LED will remain red and the fault will continue to be reported by the Envoy until the error has been cleared The condition should clear with operator intervention unless conditions causing the event have not been remedied or if the failure is permanent Follow the instructions in the Envoy Communications Gateway Installation and Operation Manual to clear this condition Or for assistance contact Enphase Energy customer support at support enphaseenergy com Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y a Other Faults All other faults are reported to the Envoy Refer to the Envoy Installation and Operation Manual for a list of additional faults and troubleshooting procedures WARNING Be aware that only qualified personnel should troubleshoot the PV array or the Enphase Microinverter WARNING Never disconnect the DC wire connectors under load Ensure that no current is flowing in the DC wires prior to disconnecting An Opaque covering may be used to cover the module prior to disconnecting the module
25. ipment Other Information Product information is subject to change without notice All trademarks are recognized as the property of their respective owners For Enphase Envoy Warranty Terms and Conditions see the Appendix on page 22 of this manual Copyright 2011 Enphase Energy All rights reserved Copyright Enphase Energy Inc 2011 141 00007 Rev 10b Table of Contents Important Safety Information sm 4 Read TS SE ei heh ee te t osos ol ici ete 4 Salte II SON W L NON NS fiy it kt ta AA tk aka kk eat ten tk e te kk ea ke tk ok ik to ke at n tn 4 The Enphase Microinverter SYStCeEM ata t ae anana maana nannaa naa a avaa rr rr rr 5 How the Microinverter Works ii eee eee nannan enn hh una aa hana aaa kaan aan a nunnan ahaa aaaa nananana ana aaaaan 6 Sy Seen MON OLN vasa aki E asi ap a ey v ke e oye ri e ev TNT n a a ei ke a sy a KINNUNEN 6 ODUM aL Reabren 6 Enphase Microinverter Models M190 and M210 Vo cccccccccceceeeeee seen eee aak a annan 7 Enphase Microinverter InstallatiON ate e aaa annan aaa ainoaa aaa a aava anna anna annan aa aaaaa aan aaaaa aani 9 Parcs INCIUASA intine vo rta 9 Other Parts and Tools Required ooccccccococcccccnnnnnrrrrcn rr rr rr rr 9 Lightning Surge SUPPresSiON sarracenos ka pt ka ek pk On 9 Installation Procedure kle kk kk kk tk tn tn n tt ta tee nn 10 Step 1 Install the AC Branch Circuit Junction BOX tete eeeeeeeettrraasaaeeseseseeseseotone 11 Step 2 Attac
26. m for a list of electrically compatible PV modules and approved racking systems WARNING You must match the DC operating voltage range of the PV module with the allowable input voltage range of the Enphase Microinverter WARNING The maximum open circuit voltage of the PV module must not exceed the specified maximum input voltage of the Enphase Microinverter The output voltage and current of the PV module depends on the guantity size and temperature of the PV cells as well as the solar insolation on each cell The highest PV module output voltage occurs when the temperature of the cells is the lowest and the module is at open circuit not operating The maximum short circuit current rating of the module must be equal to or less than the maximum input DC short circuit current rating of the microinverter See the Enphase website http www enphaseenergy com support downloads cfm to view a list of compatible PV modules Technical Specifications MPPT voltage range M190 models V 22 40 M210 models V 31 50 Maximum DC input voltage M190 models V 56 M210 models V 62 DC Start Voltage M190 models V 28 54 M210 models V 38 62 Maximum DC input short circuit current M190 models A 12 M210 models A 12 Maximum DC input current M190 models A 10 M210 models A 10 Ground fault protection MA o po 1000 Maximum input source backfeed current to input LA popo 0 source Page 19 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b Page 20
27. maximizes energy production from your photovoltaic PV array Each Enphase Microinverter is individually connected to one PV module in your array This unique configuration means that an individual Maximum Peak Power Point Tracker MPPT controls each PV module This insures that the maximum power available from each PV module is exported to the utility grid regardless of the performance of the other PV modules in the array That is although individual PV modules in the array may be affected by shading soiling orientation or module mismatch the Enphase Microinverter insures top performance for its associated PV module The result is maximum energy production from your PV system System Monitoring Indoors you can install the Envoy Communications Gateway by plugging it into any convenient 120Vac wall socket and providing an Ethernet connection to your broadband router or modem After installation of the Envoy the full network of Enphase Microinverters automatically begins reporting to the Enphase Enlighten web server The Enlighten software presents current and historical system performance trends and it informs you when the PV system is not performing as expected Optimal Reliability Microinverter systems are also inherently more reliable than centralized or string inverters The distributed nature of a microinverter system ensures that there is no single point of system failure in the PV system Enphase Microinverters are designed to operat
28. neglected tampered with altered or otherwise damaged either internally or externally 2 that has been improperly installed operated handled or used including use under conditions for which the product was not designed use in an unsuitable environment or use in a manner contrary to the Enphase User Manual or applicable laws or regulations 3 that has been subjected to fire water generalized corrosion biological infestations acts of God or input voltage that creates operating conditions beyond the maximum or minimum limits listed in the Enphase Microinverter specifications including high input voltage from generators or lightning strikes 4 that has been subjected to incidental or consequential damage caused by defects of other components of the solar system or 5 if the original identification markings including trademark or serial number of such Microinverter have been defaced altered or removed The Limited Warranty does not cover costs related to the removal installation or troubleshooting of the customer s electrical systems The Limited Warranty does not extend beyond the original cost of the Enphase Microinverter THE LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY GIVEN BY ENPHASE AND WHERE PERMITTED BY LAW IS MADE EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED STATUTORY OR OTHERWISE INCLUDING WITHOUT LIMITATION WARRANTIES OF TITLE QUALITY MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NON
29. nloads for a list of electrically compatible PV modules and approved PV module racking systems To ensure mechanical compatibility be sure to order the correct connector type for both microinverter and PV module from your distributor See the Enphase website http www enphaseenergy com support downloads cfm for a list of approved PV module racking systems The following table summarizes electrical compatibility M190 72 208 S12 60 and 72 cell 21 MC 4 Type 2 Locking or 208 VAC M190 72 208 S12 NA Amphenol H4 Locking Three Phase M190 72 208 S13 60 and 72 cell 21 Tyco Solarlok Locking 208 VAC M190 72 208 S13 NA Three Phase M190 72 240 S12 60 and 72 cell 15 MC 4 Type 2 Locking or 240 VAC M190 72 240 S12 NA Amphenol H4 Locking single Phase M190 72 240 S13 60 and 72 cell 15 Tyco Solarlok Locking 240 VAC M190 72 240 S13 NA Single Phase M210 84 208 S12 72 and 84 cell 18 MC 4 Type 2 Locking or 208 VAC Amphenol H4 Locking Three Phase M210 84 240 S12 72 and 84 cell 13 MC 4 Type 2 Locking or 240 VAC Amphenol H4 Locking single Phase Page 7 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b Page 8 Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase RG Y g Enphase Microinverter Installation Follow all safety instructions listed on page 4 while installing the Enphase M190 and M210 Microinverters Page 9 WARNING Be aware that installation of this equipment includes risk of electric shock Normally grounded
30. rounding washer approved for the racking NOTE The AC output neutral is not bonded to ground inside the microinverter Step 5 Complete the Map and Connect the PV Modules The Enphase Installation Map is a diagrammatic representation of the physical location of each microinverter in your PV installation The virtual array in Enlighten is created from the map you create Use the blank map in the Appendix to record microinverter placement for the system or provide your own layout if a larger or more intricate installation map is required Complete the Enphase Map a Each Enphase Microinverter has a removable serial number label located on the mounting plate Peel the removable serial number label from each Enphase Microinverter and affix it to the respective location on the Enphase installation map see map on page 24 You can also download installation maps and examples from www enphaseenergy com auickstart Remember to keep a copy of the installation map for your records Alternative Create Your Own Map a Draw a top down view of the array using the Array Map template using either the grid on Side A or the freeform area on Side B Make sure to leave enough room to place the serial number stickers b When installing the microinverters remove the serial number labels located next to the DC input cables and place them in the correct order on your drawing of the system Remember to keep a copy of the installation map for your
31. ructions carefully NOTE This indicates information particularly important for optimal system operation Follow instructions closely Safety Instructions WARNING Be aware that the body of the Enphase Microinverter is the heat sink Under normal operating conditions the temperature is 15 C above ambient but under extreme conditions the microinverter can reach a temperature of 80 C To reduce risk of burns use caution when working with the microinverters Perform all electrical installations in accordance with all local electrical codes and the National Electrical Code NEC ANSI NFPA 70 Be aware that only qualified personnel should install and or replace Enphase Microinverters Do not attempt to repair the Enphase Microinverter it contains no user serviceable parts If it fails please contact Enphase customer service to obtain an RMA number and start the replacement process Tampering with or opening the Enphase Microinverter will void the warranty Before installing or using the Enphase Microinverter please read all instructions and cautionary markings in the technical description and on the Enphase Microinverter system and the PV array Connect the Enphase Microinverter to the electrical utility grid only after receiving prior approval from the utility company Do NOT disconnect the PV module from the Enphase Microinverter without first removing AC power Copyright Enphase Energy Inc 2011 141 00007 Rev 10b
32. troubleshooting does not solve the problem Customer may request the RMA number which request must include the following information a Proof of purchase of the Defective Product in the form of 1 the dated purchase receipt from the original purchase of the product at point of sale to the end user or 2 the dated dealer invoice or purchase receipt showing original equipment manufacturer OEM status or 3 the dated invoice or purchase receipt showing the product exchanged under warranty Model number of the Defective Product Serial number of the Defective Product Detailed description of the defect Shipping address for return of the repaired or replacement product n an o Copyright Enphase Energy Inc 2011 141 00007 Rev 10b e enphase ENERO All Defective Product authorized for return must be returned in the original shipping container or other packaging that is equally protective of the product The returned Defective Product must not have been disassembled or modified without the prior written authorization of Enphase Enphase Microinverters are designed to withstand normal operating conditions and typical wear and tear when used for their original intent and in compliance with the installation and operating instructions supplied with the original equipment The Limited Warranty does not apply to and Enphase will not be responsible for any defect in or damage to any Enphase Microinverter 1 that has been misused
33. uit Junction Box 1 Measure service entrance conductors to confirm AC service at the site Acceptable ranges are shown in the table below Li to L2 211 to 264 Vac Li to L2 to L3 183 to 229 Vac L1 L2 to neutral 106 to 132 Vac L1 L2 L3 to neutral 106 to 132 Vac Page 11 2 Mount the Enphase Adapter Plate ata suitable location on the PV racking system typically at the end of a row of modules 3 Install an appropriate junction box with adapter plate WARNING Only use electrical system components approved for wet locations 4 Connect the open wire end of the Enphase 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 2 Attach the Microinverters to the Racking A a Mark the approximate centers of each PV module on the racking system Evaluate the location of the microinverter with respect to the PV module junction box or any other obstructions WARNING Allow a minimum of 75 inches between the top of the roof and the bottom of the microinverter We also recommend that you allow 50 inches between the back of the PV module and the top of the inverter Do not mount the microinverter in a location that allows long term exposure to direct sunlight b If using grounding washers e g WEEB to ground the microinverter chassis to the PV module racking choose a groun
34. uz ui Kele penzia ayy pjing o dew SIYI asp wo bjausaseydua mam je auijuo abed UOnNBANJY y 0 peojdn pue dew pajajdwo5 ues YINWIZY Adno19 jaued 199Y5 O 141 00007 Rev 10b Copyright Enphase Energy Inc 2011 Page 24 ENERO Y e enphase 72 240 M190 lagram D iring U a E V ZIS OhT HB OLTIN KIS OHT LLOSIN EvHd TIONS IVA OFZ Wua INIBA EI ana mous SICA mi pre SRS A TW sann AL SNOUT oie MAWT 1 SALON 335 E ua AWAY ISA SIS SOON HIJLNOU ANVAGVOYI OL FIAVI 1IN43H13 AMLO SNOLLYINNIWINOD ADAN Wad SUTLNIANI OB WY JPA ZEL 01901 Lana 047740 7 n p97 01 117 7101 L7 saue Guimojjoy aw UILRIM 39 PINOYS spapou J3113anuralaIlu palel JEN OT ayi JOY sabeyon ay yuawdinbs uoqeauab ejos Ave Buljeisui 03 Joud SI0IINPUOI souesuUa BaAJaS We JO aDeyoa ennay 01 3417 pue 3ur 03 3U1 ayi ainseau NOA yey aans MEN NYIYHOJWI a NDH KIONYYE K3d UN 24 KON YYI JO FTIBVI YILAJANI 15VI NO O3JTIVISNI JYJ ON3 TEGOW MW 904 AUNAAN OLON HOI IVON lt OSUNA SIIPMOISKI KONM ANNEN DA ALAN AZE CEQOY TEN LAIN VISIOI IIN NOLAMKSII 057 OLAN SHOLIINNOI SV ONILDIINNOISIA OL YONIJ QINIJO 39 OINOHS HINVIYI HILNII AVOIN OV IHL SNWIW ONILIINNOISIA Y SY TIIWLINS SI LINDE KON YYJE HOV NI YOLIINNOJ DV 15414 IHL WM 0087 xoddy IVA OPT JINIYN HINA Yad SYILYJANI OY IIN Z1S OPT P8 DLZW El OLAN YO YN XLS 0hZ TL OGLW SI OLAN XLS ObZ ZL 061W SL OLAN
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