User Manual for SUN250G-EU SUN500G-EU
Contents
1. 6 Microinverter Models SUN250G and SUNS00G 7 sunshine Microinverter Installation 8 Parts Included 8 Other Parts and Tools Required 8 Lightning Surge Suppression 8 Installation Procedure 9 Step 1 Install the AC Branch Circuit Junction Box 10 Step 2 Attach the Microinverters to the Racking 10 otep 3 Connect the Microinverter Wiring Harnesses 11 Step 4 Ground the System 12 Step 5 Complete the Map and Connect the PV Modules 13 Complete the Sunshine Map 13 Alternative Create Your Own Map 13 Connect the PV Modules 14 Step 6 Build the Virtual Arra2. 22 Sunshine Installation Map 22 Sample Wiring Diagram SUN250G 230 _ 23 sample Wiring Diagram SUNS00G 230 _ 24 Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world BAR Important Safety Information Read this First This manual contains important instructions to follow during installation and maintenance of the Sunshine Microinverter To reduce the risk of electrical shock and to ensure the safe installation and operation of the Sunshine Microinverter the following safety symbols appear throughout this document to indicate dangerous conditions and important safety instructions WARNING when the photovoltaic array is exposed to light it supplies a d c voltage to the PCE WARNING The Sunshine Microinverter SUN250G 230 EU SUN250G 230 SA SUN500G 230 SA SUN500G 230 EU Works with Ungrounded PVmodle type WARNING This indicates a situation where failure to follow instructions may be a safety hazard or cause equipment malfunction Use extreme caution and follow instructions carefully gt gt NOTE This indicates information particularly important for optimal system operation Follow instructions closely Safety Instructions WARN
3. 99 0 96 Night time power consumption 50 mW MECHANICAL DAT ______________ _ __ __ _____ Ambient temperature range 40 C to 65 Dimensions WxHxD 230 mm x 165 mm x 30 mm without mounting bracket Weight 2 5 kg Cooling Natural convection No fans Enclosure environmental rating IP67 ee Compatibility Compatible with 60 90 cell PV modules Communication Power line Compliance 53100 54777 2 54777 3 VDE0126 1 1 IEC62109 1 62109 2 EN62109 1 EN62109 2 Warranty 21 Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world MASSPOWER Appendix cn HS pon inay pom tag uaModssvw o ourgsung u29 1H JEUoneN OGSulN 60 __ J a jo js fa f y ro ro ro 19946 oT dew uonej ejsu 22 Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world MASSPOWER BAR CNNOWD OL 4784 LANUAHLA ae LT T ates I del _ LIU LOI Leo TTI m a i M Ee Fa loo ET Wey SS t SOSZTNNS FT HATH TV ULOAHN eS xog IEEE ZT MOVIE NOLLONNOL O Z DOSGZNNS BuurM 23 Ningbo National Hi Tech Park Sunshine Technology Co Ltd
4. 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 and a new grounding washer must be used when installing the replacement microinverter Torque the microinverter fasteners to the values listed below x 1 4 mounting hardware 45 in lbs minimum x 5 16 mounting hardware 80 in lbs minimum L7 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world 2 f you are using a grounding electrode conductor to ground the microinverter chassis attach the grounding electrode conductor to the microinverter ground clamp 3 Connect the AC cable of the replacement microinverter and the neighboring microinverters to complete the branch circuit connections 4 Energize the branch circuit breaker and verify operation of the replacement microinverter by checking the indicator light 18 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Technical Data A A Be sure to verify the voltage and current specifications of your PV module match with those of the microinverter WARNING You must match the DC operating voltage range of the PV module with the allowable input voltage
5. 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 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 three conductors Wire them as follows depending on your microinverter model Yellow Green PE Brown 11 S L2 Light Blue Light Blue 12 Yellow Green 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 11 Ningbo National Hi Tech Park Sunshine Technology Co Ltd MASSPOWER AN AN AN Green world Clean world 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 National wiring rule AS NZS 3000 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
6. no user serviceable parts If it fails please contact Sunshine customer service to obtain an RMA number and start the replacement process Status LED Indications and Error Reporting Each Sunshine microinverter has an LED that indicates status as follows Startup LED Operation One minute after DC power is first applied to the microinverter One short Red blinks indicate a successful microinverter startup sequence be equal or greater than Two short red blinks after DC power is first applied to the microinverter indicate a failure during microinverter startup Post Startup LED Indications Flashing Blue LED slowly means produce the power Blue LED flashes said the frequency of the power of the state the faster the flashing means the greater power Other Faults All other faults can reported to the ECD or Red LED flash times Refer to the ECD Installation and Operation Manual for a list of additional faults and troubleshooting procedures a Red LED falsh two times means Error of the PV input voltage Please check the microinverter input voltage is fit the PV output voltage b Red LED falsh three times means Error of the Power grid voltage or frequency Please check the inverter output voltage frequency is in line with the local grid WARNING Be aware that only qualified personnel should troubleshoot the PV array or the Sunshine Microinverter WARNING Never disconnect the DC wire connectors under load Ensure that no current is f
7. range of the Sunshine Microinverter WARNING The maximum open circuit voltage of the PV module must not exceed the specified maximum input voltage of the Sunshine Microinverter The output voltage and current of the PV module depends on the quantity 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 19 Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world BAR MICROINVERTER TECHNICAL DATA SUN250G 230 60 to 90 Cell Modules 0 Vmax PV absolute maximum d c 60 V PV input operating voltage range de 9 55 VI Maximum operating PV input current die IBA Isc PV absolute maximum d c 13A Max inverter backfeed current to the array d c 1A Voltage nominal or range a c 200 270V a c 184 265V Current maximum continuous TEROSON Current inrush a c 0 03A Frequency nominal or range 50 0 45 55Hz 50 0 47 5 51 5Hz Power maximum continuous 250W Power factor range Maximum output fault current a A Maximum output overcurrent protection emer 20A CEN CEC weighted efficiency 240 VAC 94 5 CEC weighted efficiency 20
8. 8 VAC 94 0 96 Peak inverter efficiency 95 0 96 Static MPPT efficiency 99 0 96 Night time power consumption 50 mW ECCE Ambient temperature range 40 C to 65 Dimensions WxHxD 215 mm x 137 mm x 30 mm without mounting bracket Weight 2 0 kg Cooling Natural convection No fans Enclosure environmental rating IP67 Compatibility Compatible with 60 90 cell PV modules Communication Power line Compliance 53100 54777 2 54777 3 VDEO0126 1 1 IEC62109 1 IEC62109 2 EN62109 1 EN62109 2 Warranty 20 Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world BAR MICROINVERTER TECHNICAL DATA SUN500G 230 60 to 90 Cell Modules Vmax PV absolute maximum d c 60 V PV input operating voltage range de 9 55 V Maximum operating PV input current d c 9 83A Each input 2 provided Isc PV absolute maximum d c Each input 2 provided Max inverter backfeed current to the array d c 1A Voltage nominal or range a c 200 270V a c 184 265V Current maximum continuous 2 Current inrush 0 06A Frequency nominal or range 50 0 45 55Hz 50 0 47 5 51 5Hz Power maximum continuous 500W Power factor range Maximum output fault current a c 16A Maximum output overcurrent protection emer 25A CEC weighted efficiency 240 VAC 94 5 CEC weighted efficiency 208 VAC 94 0 96 Peak inverter efficiency 95 0 96 State VIP Pir
9. Green world Clean world 2o mE 2 lt o OI 1 d m D mj e e E lt e Ze c E 1 ECD Sample Wiring Diagram SUN500G 230 GROUND YELLOW NEUTRAL BLACK 12 RED L1 JUNCTION BOX
10. ING Be aware that the body of the Sunshine Microinverters is the heat sink and can reach a temperature of 80 under extreme conditions To reduce risk of burns do not touch Perform all electrical installations in accordance with all local electrical codes and the National wiring rule AS NZS 3000 Be aware that only qualified personnel should install and or replace Sunshine Microinverters Do not attempt to repair the Sunshine Microinverter it contains no user serviceable parts lf it fails please contact Sunshine customer service to obtain an RMA number and start the replacement process Tampering with or opening the Sunshine Microinverter will void the warranty Before installing or using the Sunshine Microinverter please read all instructions and cautionary markings in the technical description and on the Sunshine Microinverter system and the PV array Connect the Sunshine Microinverter to the electrical utility grid only after receiving prior approval from the utility company Do NOT disconnect the PV module from the Sunshine Microinverter before removing AC power Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world The Sunshine Technology Microinverter System The Sunshine 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
11. Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world SUN250G EU SUNS00G EU Installation and Operations Manual SUN250G EU SUNS00G EU www chinesegrid com 2013 8 1 rights reserved Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspower Green world Clean world En ht Contact Information ADDRESS Block 5 Lingyun Industrial Park No 1177 Lingyun Road Ningbo National Hi Tech Zone Ningbo zhejiang China Post 315000 TEL 86 574 86699988 86 574 86698369 Contact Mr Alan Wu E MAIL masspower chinesegrid com Mob 86 13738871588 Contact Ms Jingle Bal E MAIL sunshine chinesegrid com Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world BAR Table of Contents Important Safety Information 4 Read this First 4 Safety Instructions 4 The Sunshine Microinverter System _ 5 How the Microinverter Works _ 6 system Monitoring 6 Optimal Reliability
12. 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 Sunshine 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 Microinverter Energy collecting device by plugging it into the same wire wall socket and providing an Ethernet connection to your broadband router or modem After installation of the ECD the full network of Sunshine Microinverters automatically begins reporting to the Sunshine Microinverter Energy monitoring and analyzer web server The ECD software presents current and historical system performance trends and it informs you when the PV system is not performing as expected Optimal Reliability Sunshine 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 Sunshine Microinverters are designed to operate at full power at ambient temperatures as high as 65C 150F The inverter housing is designed for outdoor installation and complies with NEMA6 environmental enclosure rating standard NEMAG rating definition Indoor or outdoor use primarily to provide a degree of protecti
13. eaker Your system will start producing power after a one minute wait time 3 The Sunshine Microinverters will start to send performance data over the power lines to the ECD The time required for all the microinverters in the system to report to the ECD will vary with the number of microinverters in the system The first units should be detected within 5 minutes but the entire system could take hours to detect Please refer to the ECD Installation and Operation Manual for information on the ECD Operating Instructions The Sunshine microinverter is powered on when sufficient DC voltage from the module is applied The status LED will flash Red one times like heartbeat one minute after DC power is applied These Red blinks indicate proper start up NOTE This inverter must be used with an external GFDI device as required by the Article 690 of the National Electrical Code for the installation location You can also verify proper operation of the Sunshine Microinverters via the ECD See the ECD Communications Gateway Installation and Operation Manual for more information 14 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Troubleshooting 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 Sunshine Microinverter it contains
14. ion Procedure Installing the Sunshine Microinverter System involves several key steps 1 Measuring service and Installing the AC branch circuit junction box 2 Attaching the Sunshine Microinverters to the racking 3 Connecting the Sunshine Microinverter wiring harnesses 4 Grounding the system 5 Completing the Sunshine 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 Sunshine 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 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Step 1 Install the AC Branch Circuit Junction Box 1 Measure service entrance conductors to confirm AC service at the site Acceptable ranges are shown in the table below Wieland RST 25132 Mount the Sunshine Adapter Plate at a 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 Sunshine AC interconnect cable into the junction box using an appropriate gland or strain relief fitting The AC interconnect cable requires a strain relief connector wi
15. k 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 Check the DC connections between the microinverter and the PV module If the problem persists please call customer support at Sunshine WARNING Do not attempt to repair the Sunshine Microinverter it contains no user serviceable parts If troubleshooting methods fail please return the microinverter to your distributor for maintenance Disconnecting a Microinverter from the PV Module 6 f To ensure the microinverter is not disconnected from the PV modules under load adhere to the following disconnection steps in the order shown 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
16. lowing in the DC wires prior to disconnecting An opaque covering may be used to cover the module prior to disconnecting the module WARNING Always disconnect AC power before disconnecting the PV module wires from the Sunshine 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 gt gt gt 15 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world 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 WARNING The Sunshine Microinverters are powered by DC power from 16 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Troubleshooting an Inoperable Microinverter To troubleshoot an inoperable microinverter follow the steps in the order shown 1 AN 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 one short LED blinks Chec
17. of the Sunshine Microinverter The three key elements of a Sunshine Microinverter System are the Sunshine Microinverter the Sunshine Microinverter Energy collecting device ECD the Sunshine Microinverter Energy monitoring and analyzer EMA This integrated system maximizes energy harvest increases system reliability and simplifies design installation and management Sunshine Microinverter System installed on the racking beneath each solar module maximizes energy harvest AC power travels over AC wring to the load center performance data is also via the AC wring plug and play communications ECD communication plug into same AC outlet collects information via the AC wring transmits data through a standard ethernet router to the internet Standard Ethernet Router information collected by the ECD is then transmitted to EMA EMA Monitoring provides moniforing and analysis performnace information can be viewed from any web browser Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world BAR How the Microinverter Works The Sunshine Microinverter maximizes energy production from your photovoltaic PV array Each Sunshine 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
18. on 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 Sunshine 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 wont 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 Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world Sunshine Microinverter Models SUN250G SUN500G The Sunshine SUN250G microinverters are electrically compatible with most 60 and 84 cell PV modules The SUN500G microinverters are electrically compatible with most Two Piece 60 and 84 cell PV modules For more information see the Technical Data section on page 19 of this manual Refer to the Sunshine website http www chinesegrid com 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 Sunshine websi
19. on 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 a Each Sunshine Microinverter has a removable serial number label located on the mounting plate Peel the removable serial number label from each Sunshine Microinverter and affix it to the respective location on the Sunshine installation map See map on page 24 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 records Connect the PV Modules 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 connecto
20. r 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 15 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Step 6 Build the Virtual Array In this step you will create the virtual array in EMA from the map you created in the last step Once the virtual array is built EMA displays a graphic representation of the PV system It also shows detailed current and historical performance information Commissioning WARNING Connect the Sunshine 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 sunshine 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 gt gt gt NOTE The Status LED of each microinverter will blink Red one times like heartbeat to indicate normal start up operation one minute after DC power is applied To commission the Sunshine Microinverter PV system 1 Turn ON the AC disconnect or circuit breaker on each microinverter AC branch circuit 2 Turn ON the main utility grid AC circuit br
21. sourced from a dedicated branch circuit protected by a 25A maximum breaker Install a protective end cap on the open AC connector of the last microinverter in the AC branch circuit WARNING Make sure protective end caps have been installed on all unused AC connectors Unused AC microinverter wire harness connectors are live when the system is energized by the utility system WARNING Size the AC wire gauge to account for voltage drop All components of system wiring must be considered including internal voltage 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 Sunshine Microinverter comes with a ground clip that can accommodate a 6 10 AWG conductor Route a continuous GEC through each of the microinverters to the National wiring rule AS NZS 3000 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 grounding washer approved for the racking NOTE The AC output neutral is not bonded to ground inside the microinverter 12 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Step 5 Complete the and Connect the PV Modules The Sunshine Installation Map is a diagrammatic representation of the physical locati
22. t installation of this equipment includes risk of electric shock Normally grounded conductors may be ungrounded and energized when a ground fault is indicated WARNING This unit is provided with fixed trip limits and shallnot be aggregated above 30 kW on a single Point of Common Connection gt gt 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 Protective end cap Mounting Bracket adapter plate 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 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 In some areas the statistical frequency of lightning strikes near a PV installation is high enough that lightning protection should be installed as part of an Sunshine system In areas with lighting flashes greater than 8 0 per square mile per year the following protection device is recommended It has been tested to ensure that it does not interfere with power line communications 8 Ningbo National Hi Tech Park Sunshine Technology Co Ltd masspoweR Green world Clean world Installat
23. te http www chinesegrid com for a list of approved PV module racking systems The following table summarizes electrical compatibility Works with PV Maximum Microinverters Module Connector Works with Model Number Module Type per AC branch circuit Type Service Type SUN250G 230 EU 60 to 90 cell DC MCA 230 VAC AC RST 2513 Single Phase SUN250G 230 SA 60to 90 DC MC4 230 VAC AC RST 253 Single Phase Two piece of DC MC4 230 VAC 60 90 AC RST 2513 Single Phase Two piece of DC MC4 230 VAC 60 to 90 AC RST 2513 Single Phase Ningbo National Hi Tech Park Sunshine Technology Co Ltd Green world Clean world rAINVI Sunshine Microinverter Installation Follow the instructions in this section to install Sunshine SUN250G and SUN500G Microinverters WARNING Before installing the Sunshine Microinverter read all instructions and cautionary markings in the user manual on the Sunshine Microinverter and on the photovoltaic array gt WARNING Perform all electrical installations in accordance with all local electrical codes and the National wiring rule AS NZS 3000 WARNING Connect the Sunshine Microinverter to the electrical utility grid only after receiving prior approval from the utility company WARNING Be aware that only qualified personnel should connect the Sunshine Microinverter to the electrical utility grid WARNING Be aware tha
24. th an opening of 3 8 inches in diameter Step 2 Attach the Microinverters to the Racking 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 A WARNING Allow a minimum of 0 75 inches between the top of the roof and the bottom of the microinverter We also recommend that you allow 0 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 grounding 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 1 4 mounting hardware R 45 inlbs minimum 5 16 mounting hardware R 80 inlbs minimum 10 Ningbo National Hi Tech Park Sunshine Technology Co Ltd MassPowen Green world Clean world Step 3 Connect the Microinverter Wiring Harnesses Each microinverter comes with one 3 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
25. y 14 Commissioning 14 Operating Instructions 14 Troubleshooting 15 Status LED Indications and Error Reporting 15 Startup LED Operation 15 Post Startup LED Indications 15 Other Faults 15 Troubleshooting an Inoperable Microinverter 17 Disconnecting a Microinverter from the PV Module 17 Installing a Replacement Microinverter 17 Technical Data 19 SUN250G 230 SA SUN250G 230 EU 20 SUNS500G 230 SA SUNS00G 230 EU 21 Appendix
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