SGI 225-250-266-300-500 Installation
Contents
1. Lin i Power Stage LC Filet MYOKVA2298 VA Transtonmer Magnet Power Sipoo LC Filter 21 Dette to 420 Wya Contactor EMI Peter AC Breaker L1 3 gt e kb _ r 77 e F 49 Lengt Si gt 11 i 2 EV ke A ep ef TV we dr E i LT o 1 t Y C isa EZ PUC Uwributon Line e l e TCI LI P dree o J i rvwi gt BR RFI Fite Ootional Neutral Connection rt bored o oreusd Figure 9 4 Simplified Internal Circuit Diagram for SGI 225 480VAC through SGI 300 480VAC 50 Installation and Operation Manual Rev D SGI Series Inverters 10 0 Appendices 10 1 Appendix A SGI 225 SGI 250 SGI 266 SGI 300 and SGI 500 Data Sheet http www solren com utility html 10 2 Appendix B String Sizing Tool http www solren com stringSizing html 10 3 Appendix C Contact Information Solectria Renewables LLC 360 Merrimack Street Building 9 2 floor Lawrence Massachusetts 01843 USA Tel 978 683 9700 Fax 978 683 9702 Sales generalinfo inverters solren com Customer Support service solren com Website www solren com 10 4 Appendix D Authorized Distributors See website for complete and updated listing www solren com 51 Installation and Operation Manual Rev D SGI Series In2. 51 10 7 Appendix B Sirine Sizing TOOL eee nee ee en ee ete 51 10 3 Appendix C CONTACT INTOMM Ee E 51 10 4 Appendix D Authorized Distributors sise 51 10 5 Appendix E UL1741 IEEE 1547 CSA22 2 107 1 Listing Letter een 52 Installation and Operation Manual Rev D SGI Series Inverters 1 0 Introduction The Smart Grid inverters SGI are commercial three phase grid tied PV inverters designed to be interconnected to the electric utility grid By following this manual the inverter can be installed and operated safely This installation guide is used as a reference for the commissioning process and as a guideline on how to use the inverter most effectively Feeding power into the grid involves conversion of the DC voltage from the PV array to grid compatible AC voltage by inverting DC to AC This unit feeds power into a standard three phase commercial industrial institutional or electrical utility facility s electrical system which is connected to the electrical grid If the PV system and inverter are providing the same amount of electrical power that the facility is using then no power is taken from or fed into the utility grid If the facility is using more power than the PV system is providing then the utility grid provides the balance of power If the facility is using less power than the PV system is generating then the excess is fed into the utility grid Be sure to follow local regulations re
3. The SGI series of inverters require a clockwise phase sequence for proper operation gt If a phase sequence error is displayed on the screen during commissioning of the inverter simply swap any two phases to correct the phase sequence Either copper or aluminum wire may be used for the AC phase and optional neutral conductors although due to terminal size restrictions aluminum wire may not be an option for all cases As with any aluminum wire exercise best industry practices to ensure a reliable connection thoroughly clean the conductor just prior to making the electrical connection and use an oxide inhibitor to prevent the formation of aluminum oxide 26 Installation and Operation Manual Rev D SGI Series Inverters The table below describes the routing path and connection methodology for the optional neutral conductors that may be connected to the inverter s transformer to satisfy effective grounding requirements The inverter enclosure is designed with a routing path to allow for proper bending space of these conductors and therefore the path shown below should be followed The transformer s neutral bar has also been designed with a set of holes to allow for various field connections such as a box lug or a crimped lug SGI 225 300 Alternate Transformer Neutral Location Neutral Location Cu or Al Conductors Cu or Al Conductors Max 3 x 1 0AWG 400kcmil Max 2 x 1 0AWG 500kcmil 75C connections 75C connections 3 x 1 2 holes 3 x 3 8
4. 2010 Date June 30 2010 es TE CA A a Page of 1 a re EE fra agreement botaman inerte ard tty Cent raser aiti Apres Ba brated to fhe termes and condiions of the agreement niertek ascummes no ab rm any pany otter fan ko fe Cent in asccondance wth the agreement tor any expense or WEE E ine tia t e inenck name or one ofits marks for ho sabe or adveordisemant of f tested mere product or sono set Tot be approved in writing by ionok The otsenmions sed bis est Tie Teapot ure sebevat onby The sarapi bad Tiis sepert by toalf does sol ket al the rh product or Savid re or has ever Deen order an SEAS interte certicabon progam interiek Testing Services NA Inc 80 12 1 2 6 19 08 Informative 52
5. 561225 Figure 9 2 Efficiency of SGI Series Inverters at 360VDC Input and 25C Ambient Temperature 49 Installation and Operation Manual Rev D SGI Series Inverters 9 4 Internal Circuit Diagram The basic power flow within the SGI series of inverters is shown in the simplified one line diagrams below Note that the GFDI circuit is not depicted Power 51030 LC Filter C Typical intem Log Diagram for Scheciria GC ENG ASOVAC tnrd Te ki CC Suecombmnew fuses or beeakees SARVA Trarsiommet Magnete Powor Stage LC Filter 205 Delt to 620 Wipe Cute ior EN F rier AC Greaber Dy wm ae s S TN t QT iu b y gt al LT ef TE ke A a ef TT e ZS i i A oed d LI r i eel K PCO Detributon Line X ke 77 Op 9 i f mm nana N Power Stage RFI Fee Option Neutry Connection ot bonded a oreusdi Figure 9 3 Simplified Internal Circuit Diagram for SGI 500 480VAC Tyco internal Croo Dooram for Secta 56925 4DCVAC Gris Tie Inverter BW i 4 Saetta SGgsSo ABOV AC Gris The Inrvertar gan ges e o 1 Soocrio 3GQ pe AA Grid Tie Irreeroer 2 a ER TR wi PAI Get T a CC Suecarr bine i Y Sotecria 39800DO0 ABOVINC Grid Tie Ireno fuses or besiis T annee d
6. N j SMARTGRID 500 i ec p Figure 3 3 Minimum Requirements for Eyebolt Lifting 14 SGI Series Inverters Installation and Operation Manual Rev D 20 Minimum ye _ Pur entes my EE re hes Tean gegen ur e H J h c r ki ine Ps Cy i n we X ig E i vac See M e E s n 4 KS ip FPL E adi e t d oeae SMARTGRID Mer rr en Bee Figure 3 4 Marginal Lifting Method 15 Installation and Operation Manual Rev D SGI Series Inverters Less than 20 Figure 3 5 Improper Lifting Method 16 Installation and Operation Manual Rev D 4 0 DC Connections from the PV Array and AC Connections to the Electrical Utility Grid A 4 1 WARNING All electrical installations shall be performed in accordance with all local electrical codes and the National Electrical Code Canadian Electrical Code for Canada and NFPA 70 Only make AC connections directly to the AC breaker and DC connections to the DC subcombiner panel Grounding Electrode Conductor GEC As with all PV systems a Grounding Electrode Conductor must be installed per NEC 690 This conductor should be sized according to NEC requirements Both a DC and AC GEC may be required at the inverter in some instances Two lug positions are provided on the ground bond plate for the AC and DC grounding electrode conductors A A
7. 24VDC 21 6VDC 26 4VDC 100mADC 26 14AWG Table 4 10 Remote Shutdown Specifications 28 Installation and Operation Manual Rev D SGI Series Inverters Begin by locating a set of terminal blocks that are identified as Block 2 on the back panel of the inverter refer to the diagram below Wire the positive conductor to the left bottommost position on Terminal Block 18 Wire the return conductor to the left bottommost position on Terminal Block 19 Block 2 Block 1 Figure 4 5 Terminal Block Locations a bottom Remote shutdown in Remote shutdown return 6 8 Po Figure 4 6 Remote Shutdown Wiring Locations on Terminal Blocks 18 and 19 29 Installation and Operation Manual Rev D SGI Series Inverters 4 9 SolrenView Monitoring SolrenView is a state of the art web based inverter monitoring system The SGI series of inverters are equipped with SolrenView monitoring hardware as part of the display module To activate the hardware SolrenView monitoring services must be purchased from Solectria Renewables An Ethernet cable is then connected to a router with broadband internet on the premises for IP address assignment Connect the cat5 cable to the RJ45 jack on the lower right side of the SolrenView module Figure 4 7 Connection of Optional SolrenView Monitoring System For multiple inverters at one location it is necessary to connect an Ethernet cable to each inverter then to a router or switch fo
8. 271 301 320 360 602 m duration of 10 line cycles Peak Short Circuit Current Output 480VAC KApk duration of less than 300 microseconds om ojos os so qe AC current measurement accuracy t 396 measurement accuracy Unity gt 0 99 mn Anti islanding protection per UL1741 IEEE1547 CSA22 2 107 1 Peaktffidency 97 99 97 98 97 96 97 90 97 87 CEC Weighted Efficiency 97 5 97 5 97 5 97 5 97 0 Table 9 2 AC Output Specifications 47 Installation and Operation Manual Rev D SGI Series Inverters 9 3 Other Specifications DC Ground Fault Protection Per UL 1741 DC Ground Fault Current Withstand anii in UL 1741 testing to 3 2kADC components rated to DC Breaker Subcombiner Range Operational Ambient Temperature Switching Electronics Enclosure 68dBA at 1m Sound Pressure Level A Weighting 60dBA at 5m 57dBA at 10m Table 9 3 Other Specifications 48 Installation and Operation Manual Rev D SGI Series Inverters S 3 Q fed 3 O amp OU gt D D QO st 450 475 DC Input Voltage VDC SGI 300 SGI266 SGI 250 SGI 225 Strike Voltage Strike Voltage LV Option Figure 9 1 AC Output Power of SGI Series Inverters Overall ACto DC Conversion Efficiency 96 1096 2096 3096 4096 5096 6096 7096 8096 9096 10096 AC Nameplate Output Power 96 SGI 500 561300 SGI266 SGI250
9. 800A Table 4 7 Nominal 125 Rated Building Backfeed OCPD Ampere Ratings The grid impedance value at the connection point should be as low as possible to avoid an increase of the AC voltage to non permissible values while the inverter feeds power to the grid Designing for less than 196 AC phase to phase voltage rise is recommended Minimizing wiring impedance also results in higher system efficiency 25 Installation and Operation Manual Rev D SGI Series Inverters Connect the building s three phase conductors into the bottom of the integrated AC breaker as shown below Phase A should connect to the leftmost position of the breaker phase B to the middle position and phase C to the rightmost position Figure 4 4 AC Phase Wire Connection Points Use minimum 90 C 194 F rated wire to connect to the inverter s integrated three phase AC breaker See NEC 310 regarding temperature ratings of wire Follow local codes to determine minimum wire gauge and temperature rating of the wires Voltage drop and other considerations may dictate that larger wire sizes be used Wire Size Wire SIE LUE Torque SGI 225 480VAC 2 3 0AWG 500kemil 275indbs SGI250 480VAC 2 3 0AWG 500kemil 275indbs SGI 266 480VAC 2 3 0AWG 500kcmil 275 in Ibs SGI 300 480VAC 2 4 0AWG 500kcmil 275 in Ibs SGI500 480VAC 3 250kcmil 400kcmil 375 in lbs Table 4 8 Factory Included AC Breaker Phase Wire Size Limits
10. Figure 4 1 AC and DC GEC Lug Positions Cu or Al Conductors Max 1 x 1 0AWG 750kcmil 75C connections 550 in lbs 1 wire per lug or Max 2 x 1 0AWG 300kcmil 75C connections 550 in Ibs 2 wires per lug WARNING Make sure to establish a solid connection from the inverter to the system grounds before proceeding to connect any DC or AC power wires 17 SGI Series Inverters Installation and Operation Manual Rev D SGI Series Inverters 4 2 Equipment Grounding Conductor EGC The ground bond plate is also equipped with a number of provisions for equipment grounding conductors In most instances these will be used for the equipment grounds originating at the combiner boxes used to feed the subcombiner positions within the inverter Figure 4 2 EGC Lug Positions Cu or Al Conductors Max 28 x 14AWG 1 0AWG 75C connections 50 in lbs 1 wire per lug position 18 Installation and Operation Manual Rev D SGI Series Inverters 4 3 DC Subcombiner Wiring WARNING Before terminating AC or DC conductors at the inverter ensure that the conductors are deenergized by turning any AC and DC disconnects off building AC source circuits or breakers off and disconnect the PV module strings or ensure that the modules are covered WARNING Before connecting the DC conductors of the PV array to the subcombiner verify the polarity of the conductors WARNING Before connecting the DC conductors of the PV array to the subc
11. Installation and Operation Manual Rev D SGI Series Inverters 2 4 DC and AC Wire Entry Points AC and DC wiring must enter through the provided conduit cutout in the bottom of the inverter enclosure or through the alternate conduit entries Alternative locations are the left side for DC and back panel for AC AC and DC M Altemate AC Altemate DC Conduit Plate d Conduit Entry Conduit Entries Figure 2 4 AC and DC Conduit Entry Points Installation and Operation Manual Rev D SGI Series Inverters Fig 2 5 Alternate DC Conduit Entry Locations i i i es hu HETT Figure 2 6 Alternate AC Conduit Entry Location Installation and Operation Manual Rev D SGI Series Inverters 3 0 Installation WARNING Before installing the inverter read all instructions and caution markings in this manual and on the inverter as well as on the photovoltaic modules electrical codes and the National Electrical Code NEC Canadian Electrical Code for WARNING Electrical installation shall be performed in accordance with all local AN Canada CEC NFPA 70 WARNING Connecting the inverter to the electric utility grid must only be completed A after receiving prior approval from the utility company and installation performed only by qualified personnel licensed electrician s 3 1 Checking for Shipping Damage The inverter is thoroughly checked and tested rigorously before it is shipped Even though it is bolted onto a rugg
12. Inverter Placement nnne nennen enne nnne nens 4 MTP 6 Berre dee 6 Mor NN 7 Ke NN 8 ng EE EE 10 Checking for Shipping DRE EEE EEE net ee eee 10 NNN rn 11 Removing Inverter from Pallet and Moving Inverter Into Place 11 DC Connections from the PV Array and AC Connections to the Electrical Utility Grid 17 Grounding Electrode Conductor GEC EE 17 Equipment Grounding Conductor E EN 18 CNT 19 DC Ground Fault Detection and Interruption sis 24 BRUT dio NR ae a E E 25 FN 28 Lightning IT 28 Remote TV 28 ENN 30 S lrenView ATP ee ag EEE iin hope iu reus EDMEEPU FE DU ORI dG M eeP PUE CEDE 30 Commissioning the Inverter PV SSE E 31 RE gelt TENT 31 ie e de TTE T Em oem 31 ETEN 31 LCD Display and LED ue Te ee EN EE OT mom 32 Fenn 32 BULON DESC DUON EE 32 ENDEN 33 EDINI RT a ETT 36 Installation and Operation Manual Rev D SGI Series Inverters 7 0 Troubleshooting and Inverter Messages secius ends bH i bua sere 37 7 1 Verter E 37 8 0 Fo EE 39 8 1 VPA TH T 39 8 2 Return Material Authorization D e EE 44 9 0 IR 61 VIG AN DE LE H 45 9 1 MSN 46 9 2 UM NNN 47 9 3 MINN EE 48 9 4 era PCI POULE DS OR asic cessansoleuteesekaucentace uivadavatosassun ea anscanbensenwnacbacs 50 DO NNN ene ner reset E E ee ene eee a ee 51 10 1 Appendix A SGI 225 SGI 250 SGI 266 SGI 300 and SGI 500 Data Sheet
13. NOT TOUCH any equipment including SEEN but not limited to the inverter the PV array A ground fault has disconnects the PV array combiners the PV om been detected in the panels the PV racking system Immediately PV array contact the installer or another qualified RED person to locate and repair the source of the ground fault For other LED indications please contact Solectria Renewables Customer Support 36 Installation and Operation Manual Rev D SGI Series Inverters 7 0 Troubleshooting and Inverter Messages Although the inverter is designed for many years of power production there may be instances where messages may be displayed on the LCD screen For ease of diagnostics most messages are displayed as an error message AT a f Inverter Messages The inverter is in derating mode Can be Check string sizing ambient temp fans caused by high input power high operating vents are clear AC wire sizing temperature AC line impedance Pac XXXX W Power Derating A high voltage transient has occurred The inverter will need to be inspected and from the AC grid voltage Usually from serviced by an authorized service provider lightning Pac XXXX W MOV Fault The AC grid voltage is exceeding the high Measure the actual VAC compared to the LCD limit display VAC If VAC is greater than acceptable limits inverter will restart when normal Pac XXXX W AC Voltage High The AC grid voltage is less than the lo
14. holes 3 x 1 2 holes 3 x 3 8 holes 1 connection per hole 1 connection per hole Table 4 9 Optional Neutral Routing and Connections 27 Installation and Operation Manual Rev D SGI Series Inverters 4 6 AC Ground Fault Detection The SGI series of inverters are not equipped with AC ground fault protection When AC ground fault protection is used on the onsite electrical service determine if the ground fault device is listed to be backfed The inverter AC output should be connected on the supply side of the device unless the device is specifically listed for a backfeed application then the inverter may be installed on either the load or supply side of the device Always consult the AC ground fault manufacturer for guidance on backfeeding their devices in a Code compliant manner 4 7 Lightning and Surge Protection The SGI series is designed with certain protections against surges in voltage including certification to ANSI IEEE 62 41 62 42 However added protection and solid grounding provisions are important for best protection against utility surges and surges created by indirect lightning strikes The installation of a UL listed lightning arrester of the correct specification is recommended on both the DC and AC inputs of the inverter This should be installed and wired using the manufacturer s installation instructions This device gives important added protection from indirect lightning strikes and the resulting voltage surges that
15. provide protection beyond the inverter s IEEE 1547 requirements The best protection against damage from lightning and other voltage surge sources is proper grounding of the system When required by local codes it is recommended to establish a grounding electrode system specifically for the PV array located as close as practical to the array It is also recommended to have the lightning protection system of the building checked and upgraded if needed before the PV system is installed These added protections are especially important for areas prone to thunder storms and possible nearby lightning strikes Although these added precautions will not guarantee that there will be no damage from lightning they can help prevent or limit potential damage 4 8 Remote Shutdown Wiring The SGI series of inverters feature a remote shutdown input to allow for advanced remote command and control systems The input required is an isolated 24VDC signal that is wired to the terminal blocks on the back panel of the inverter by the installer Once the signal is activated the inverter will slowly ramp down power and then disconnect from the grid The inverter will not reconnect until the signal is removed The remote shutdown feature will not result in an instantaneous shutdown of the inverter Maximum Nominal Minimum Maximum Minimum Terminal Shutdown Input Input Input Current Terminal Torque Ramp Time Voltage Voltage Voltage Capability Wire Size if screw type
16. to a The product if it has been misused neglected improperly installed physically damaged or altered either internally or externally or damaged from improper use or use in an unsuitable environment b The product if it 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 Solectria Renewables product specifications including high input voltage from generators or lightning strikes C The product if repairs have been made to it other than by Solectria Renewables or its authorized trained service personnel d The product if it is used as a component part of a product expressly warranted by another manufacturer e The product if its original identification trademark serial number markings have been defaced altered or removed f The product if it has been damaged in shipping unless approved in writing by Solectria Renewables g Any installation and operation beyond the scope covered by relevant safety regulations UL1741 NFPA 70 etc h Third party monitoring equipment i Failure to perform Preventative Maintenance may void the warranty 41 Installation and Operation Manual Rev D SGI Series Inverters DISCLAIMER SOLECTRIA RENEWABLES LIMITED WARRANTIES ARE THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY SOLECTRIA RENEWABLES IN CONNECTION WITH YOUR SOLECTRIA RENEW
17. 00 An internal failure of the voltage Turn off the inverter and contact Solectria sensing circuit has occurred Renewables The inverter may need to be serviced by an authorized service provider Vsense Err 978 683 9700 One of the AC phases is not present at Verify that there is AC voltage on all the inverter phases at the inverter and all fuses are intact An internal failure of one of the Turn off the inverter and contact Solectria Open Phase 978 683 9700 MAG Failure OM gt D O ai UO O 5 09 i magnetic components Renewables The inverter may need to be SISSE REA serviced by an authorized service provider Pac XXXX W An internal failure of the master Turn off the inverter and contact Solectria PS Fail power stage Renewables The inverter may need to be serviced by an authorized service provider Pac XXXXW An internal failure of one of the slave Turn off the inverter and contact Solectria power stages Renewables The inverter may need to be serviced by an authorized service provider PS Fail Slave One of the internal power stages did Turn off the inverter and contact Solectria Pac XXXX W DEED PS Wake Fail not initialize properly Renewables The inverter may need to be serviced by an authorized service provider Pac XXXXW An internal failure of the voltage Turn off the inverter and contact Solectria ost Erea Lock sensing circuit Renewables The inverter may need to be d serviced by an authorized s
18. ABLES PRODUCT AND ARE WHERE PERMITTED BY LAW IN LIEU OF ALL OTHER WARRANTIES CONDITIONS GUARANTEES REPRESENTATIONS OBLIGATIONS AND LIABILITIES EXPRESS OR IMPLIED STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT HOWEVER ARISING WHETHER BY CONTRACT TORT NEGLIGENCE PRINCIPLES OF MANUFACTURER S LIABILITY OPERATION OF LAW CONDUCT STATEMENT OR OTHERWISE INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR CONDITION OR QUALITY OF THE PRODUCT ANY IMPLIED WARRRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OF DISTRIBUTOR OR DEALER INSTALLER ABILITY ALL OF WHICH ARE EXPRESSLY DISCLAIMED TO THE FULLEST EXTENT PERMITED BY LAW ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTY OF DISTRIBUTOR OR DEALER INSTALLER ABILITY TO THE EXTENT REQUIRED UNDER APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD STIPULATED UNDER THIS LIMITED WARRANTY TO THE FULLEST EXTENT PERMITTED BY LAW IN NO EVENT WILL SOLECTRIA RENEWABLES INCLUDING ITS SUPPLIERS MANUFACTURERS VENDORS SUBCONTRACTORS DISTRIBUTORS DEALERS AND ANY OTHER AFFILIATES BE LIABLE FOR ANY SPECIAL DIRECT INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT RESTRICTION ANY ECONOMIC LOSSES OF ANY KIND ANY LOSS OR DAMAGE TO PROPERTY INCLUDING LOSS OF USE AND INTANGIBLE HARM OF ANY K
19. D SGI Series Inverters IMPORTANT SAFETY INSTRUCTIONS e Al electrical installations shall be performed in accordance with the local American and Canadian electrical codes e The inverter contains no user serviceable parts Please contact Solectria Renewables or a Solectria Renewables authorized system installer for maintenance See Appendix C for Solectria Renewables contact information and authorized system installers e Before installing or using the inverter please read all instructions and caution markings in this manual and on the inverter as well as the PV modules e Connection of the inverter to the electric utility grid must be completed after receiving approval from the utility company and must only be performed by qualified personnel e Completely cover the surface of all PV arrays with an opaque material before wiring them PV arrays produce electrical energy when exposed to light and could create a hazardous condition e The inverter enclosure and disconnects must be locked requiring a tool or key for access for protection against risk of injury to persons The enclosure includes a lockable handle and comes with a key Keep the key in a safe location in case access to the cabinet is needed A replacement key can be purchased from Solectria Renewables SAVE THESE INSTRUCTIONS PRESCRIPTIONS DE SECURITE IMPORTANTES e Tous les travaux d installation lectrique doivent tre ex cut s en conformit aux normes lectriques l
20. IND AND ANY PHYSICAL DAMAGE OR OTHER DAMAGE ARISING FROM OR AS A RESULT OF ANY USE MISUSE OR ABUSE OF THE PRODUCT OR THE INSTALLATION INTEGRATION OR OPERATION OF THE PRODUCT REGARDLESS OF WHETHER SUCH INSTALLATION INTEGRATION OR OPERATION WAS PERFORMED PROPERLY OR IMPROPERLY Solectria Renewables neither assumes nor authorizes any other person to assume for it any other liability in connection with the repair or replacement of the Product Exclusions of the Policy Installation and Operation Manual If your product is a consumer product the applicable law may not permit exclusion of implied warranties To the extent permitted by the applicable law such warranties are limited to the duration of this Limited Warranty Some jurisdictions do not allow any limitations on the duration of an implied warranty or exclusions on implied warranties or on the limitation or exclusion of incidental or consequential damages so the above limitation s or exclusion s may not apply to you This Limited Warranty gives you specific legal rights You may have other rights which may vary from state to state or province to province 42 Installation and Operation Manual Rev D SGI Series Inverters WITHOUT LIMITING THE GENERALITY OF THE FOREGOING UNLESS SPECIFICALLY AGREED TO BY IT IN WRITING SOLECTRIA RENEWABLES a MAKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN MANUALS OR OTHER DOCUME
21. NTATION PROVIDED BY IT IN CONNECTION WITH THE PRODUCT AND b ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES DAMAGES COSTS OR EXPENSES WHETHER SPECIAL DIRECT INDIRECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USERS RISK WARNING LIMITATIONS ON USE Please refer to your product user manual for limitations on uses of the product Specifically please note that Solectria Renewables products are not intended for use in connection with life support systems and Solectria Renewables makes no warranty or representation in connection with any use of the product for such purposes 43 Installation and Operation Manual Rev D SGI Series Inverters 8 2 Return Material Authorization Policy Please review our Return Merchandise Authorization Policy below Obtaining a required Return Material Authorization Before returning a product directly to Solectria Renewables you must obtain a Return Material Authorization RMA number and the correct factory Ship To address Products must also be shipped prepaid Product shipments will be refused and returned at your expense if they are unauthorized returned without an RMA number clearly marked on the outside of the shipping box if they are shipped collect or if they are shipped to the wrong location Information Solectria Renewables needs when you are obtaining service 1 The model names and serial
22. SOLECTRIA RENEWABLES S SGI 225 SGI 250 SGI 266 SGI 300 SGI 500 Revision D 2012 Solectria Renewables LLC Installation and Operation Manual Rev D SGI Series Inverters IMPORTANT REGISTRATION AND WARRANTY INFORMATION For warranty to become active this inverter must be registered To activate warranty and register inverter please visit the link below www solren com registration Installation and Operation Manual Rev D SGI Series Inverters IMPORTANT SAFETY INSTRUCTIONS In this manual inverter or inverters refers to the inverter models SGI 225 SGI 250 SGI 266 SGI 300 and SGI 500 unless one of the specific models is noted This manual contains important instructions that shall be followed during installation and maintenance of the SGI inverter To reduce the risk of electrical shock and to ensure the safe installation and operation of the inverter the following safety symbols are used to indicate dangerous conditions and important safety instructions WARNING This indicates a fact or feature very important for the safety of the user and or which can cause serious hardware damage if not applied appropriately Use extreme caution when performing this task gt NOTE This indicates a feature that is important either for optimal and efficient use or optimal system operation EXAMPLE This indicates an example SAVE THESE INSTRUCTIONS Installation and Operation Manual Rev
23. by the end user or 64 months after the delivery date from Solectria Renewables to the distributor or the dealer installer whichever is shorter If a warranty extension has been purchased the term is defined as an extension beyond 60 months For example if a 5 year extension to 10 years total is purchased the term becomes 120 months from date of purchase For the PVI 3000 to PVI 7500 inverters the warranty period is 120 months from the date of purchase by the end user or 124 months after the delivery date from Solectria Renewables to the distributor or the dealer installer whichever is shorter If Solectria Renewables repairs or replaces a product its warranty continues for the remaining portion of the original Warranty Period or 90 days from the date of the repair replacement shipment to the customer whichever is greater Solectria Renewables obligation to repair or replace a defective product under this warranty is contingent upon Solectria Renewables receiving full and timely payment for the warranted products and associated shipping charges Solectria Renewables Warranty Coverage is voidable at Solectria Renewables sole option if full payment for products and associated shipping charges are not received in full and in a timely manner by Solectria Renewables Please contact Solectria Renewables Customer Service for further details on other products What will Solectria Renewables do Solectria Renewables will at its sole option r
24. ction and interrupt circuit GFDI The PV grounded connections should not be bonded to the ground system at any other point The PV ungrounded connections must never be bonded to the ground system at any time WARNING The PV grounded connections should not be bonded to the ground system at any point outside of the inverter This bond is made in the GFDI circuit that is A integral to the inverter 23 Installation and Operation Manual Rev D SGI Series Inverters 4 4 DC Ground Fault Detection and Interruption Every SGI inverter is equipped with an automatic DC Ground Fault Detection and Interruption GFDI circuit When a single ground fault on an ungrounded circuit exceeding the pickup value is present in the PV array or in the DC wiring to the inverter the DC GDFI breaker will trip and a ground fault will be signaled by means of a yellow LED and a message on the front LCD display Breaker TRIPPED Breaker ON DC GROUND FAULT INDICATED NO GROUND FAULT DETECTED Figure 4 3 Operating Positions of GFDI Breaker BEEN UO DC Ground Fault Current Pickup Maximum Trip Time SGI 225 250 SGI 266 300 500 Table 4 5 DC GFDI Specifications WARNING In the event of a ground fault DO NOT TOUCH any equipment including but not limited to the inverter the PV array disconnects the PV array combiners the PV panels the PV racking system Immediately contact the installer or another qualified person to locate and repair the
25. de in the GFDI circuit that is 1 WARNING The PV grounded connections should not be bonded to the ground system integral to the inverter 21 Installation and Operation Manual Rev D SGI Series Inverters The breaker subcombiner plate is populated with a number of 600VDC breakers in a variety of configurations designed to meet numerous array designs amas P Si d WE echt ech NN DONA E I Vi 1 venns Mc Bal See hips ay oe see Lid ad lt d all hi Or T me LI Daten Cui LIN EXC LI mm a MES TA vier D gt A 1 Na i Ri he me 3 Le SGI 500 16 positions 110 200A 600VDC breakers SGI 500 8 positions 225 400A 600VDC breakers SGI 225 300 12 positions SGI 225 300 6 positions 110 200A 600VDC breakers 225 400A 600VDC breakers Cu or Al Conductors Max 16 x 2AWG 300kcmil 75C connections 275 in lbs 1 wire per breaker position Cu or Al Conductors Max 8 x 4 0AWG 500kcmil 75C connections 375 in lbs 3 8 hex 1 wire per breaker position Or Max 16 x 2 0AWG 250kcmil 75C connections 275 in lbs 5 16 hex and 375 in Ibs 3 8 hex 2 wires per breaker position Table 4 3 DC Ungrounded Inputs Breaker Subcombiner NOTE Not all of the breaker positions will be used in all designs In the case that not all of the positions will be used the inverter will ship with breakers in the unused locations The locatio
26. eck of all AC and DC wiring to the inverter and in the 5 1 Turning on the Inverter e Turn on the dedicated three phase circuit breaker or disconnect at the building service e Turn on the inverter s DC disconnect using the handle on the front door e Turn on the inverter s three phase AC breaker using the handle on the front door e Watch the LED indicators for initialization green and red LEDs on then a slow blinking green LED followed by a faster blinking green LED Watch the LCD display for prompts and system status e Listen for contactor closing inverter on line e Listen for slight 60 Hz hum transformer on line e Following the blinking green LED and high frequency switching sound you should see a solid green LED This confirms that the inverter is operating normally The LCD display will show the AC Power PAC Energy EAC current and voltage as well as DC voltage 5 2 Operation The control electronics will be active as soon as the DC voltage reaches 300VDC The inverter will go on line with the utility three phase grid when the DC voltage first exceeds 390VDC strike voltage Next the inverter will load the array bringing the DC voltage down from 390VDC to not less than 300VDC unless the low voltage option has been selected in which case the strike voltage will be 370VDC and the minimum MPPT voltage will be 285VDC Once there is enough PV power to back feed three phase AC power power switching will automatically feed
27. ed oversized pallet for delivery the inverter can be damaged during shipping by poor handling trucking or transfer station activity Please inspect the inverter thoroughly after it is delivered If any damage is seen please immediately notify the shipping company to make a claim If there is any question about potential shipping damage contact Solectria Renewables Photos of the damage may be helpful in documenting potential shipping damage e Do not accept the unit if it is visibly damaged or if you note visible damage when signing shipping company receipt e Note damage on shipping papers with the truck driver Report damage immediately to the shipping company e Do not remove the unit from pallet packaging if damage is evident e If it is determined that the unit must be returned a RMA number must be obtained from Solectria Renewables prior to shipping the unit back 10 Installation and Operation Manual Rev D SGI Series Inverters 3 2 Inverter Mounting WARNING The inverter may tip over if improperly moved potentially causing damage to equipment personal injury or death Note the center of gravity to guide lifting methods Do not tilt the pallet or inverter while moving it Safety chains and straps must be used to prevent any possible tilting or shifting of the inverter in any direction while being lifted A WARNING Do not install the inverter on or over combustible surfaces or materials 3 3 Removing Inverter f
28. epair or replace the defective product free of charge provided that Solectria Renewables is notified of the product defect within the Warranty Period for the product and provided that Solectria Renewables through inspection establishes the existence of such a defect and that it is covered by the Limited Warranty Solectria Renewables will at its sole option use new and or reconditioned parts in performing warranty repair and or replacements Solectria Renewables reserves the right to use parts or 39 Installation and Operation Manual Rev D SGI Series Inverters products of original or improved design in the repair or replacement of the product All replaced products and all parts removed from repaired products become the property of Solectria Renewables Solectria Renewables will attempt to repair the unit within a reasonable time period No provision will be made for reimbursement of lost energy production For three phase inverters 10kW and higher Solectria Renewables covers parts travel and labor necessary to repair the product and shipment of parts to and from the customer via a Solectria Renewables selected non expedited surface freight within the contiguous United States Canada and Mexico For Alaska Hawaii and all other installation locations Solectria Renewables will supply necessary parts as needed for warranty repairs however travel is not included Contact Solectria Renewables Customer Service for details on the freight pol
29. ervice provider Pac XXXXW The DC voltage is outside of the Turn off the inverter and contact Solectria VDC Ctrl Fail regulation specifications Renewables The inverter may need to be serviced by an authorized service provider Pac XXXXW One of the internal power stages has Turn off the inverter and contact Solectria DMGI Overtemp exceeded its temperature limit Renewables The inverter may need to be serviced by an authorized service provider 38 Installation and Operation Manual Rev D SGI Series Inverters 8 0 Product Warranty amp RMA Policy 8 1 Warranty Policy The Solectria Renewables Warranty Policy is stated below Solectria Renewables Warranty Coverage Solectria Renewables Limited Warranties are provided by Solectria Renewables LLC Solectria Renewables and cover defects in workmanship and materials Solectria Renewables price for the products is based on inclusion of these limited warranty provisions and disclaimers In the event of a conflict between the terms of this Limited Warranty and any terms and conditions proposed by purchasers of Solectria Renewables products these Limited Warranty provisions shall govern the parties obligations with respect to warranty coverage for defective products Duration of a Solectria Renewables Warranty Period For three phase inverters PVI 10kW and higher and for the PVI 1800 and PVI 2500 inverters the warranty period is 60 months from the date of purchase of the inverter
30. garding net metering and interconnection in your local area Note that some utilities need to change their revenue kWh meter for proper net metering measurement and billing ni CT ER BET Me 3 v 7 r gt i pa o o ml LE Electrical SG Senes Inverter Grid Figure 1 1 Grid Tied Inverter Application Installation and Operation Manual Rev D DC disconnect switch A LCD display and keypad Nameplate specs m and ETL UL1741 IEEE1547 CSA certification labels Cooling air intake Left side of enclosure contains integrated inverter filters and contactor SGI Series Inverters p P E ID 500 e n __SMARTGR heh dem D ni Right side of enclosure contains isolation transformer and inductors Figure 1 2 The SGI Inverter Front Installation and Operation Manual Rev D SGI Series Inverters Exhaust air vents Figure 1 3 The SGI Inverter Rear Installation and Operation Manual Rev D SGI Series Inverters 2 0 Site Preparation and Inverter Placement The inverter is comprised of a rainproof industrial enclosure containing electrical and electronic components and AC and DC integrated disconnecting means NOTE If the inverter is mounted outside ensure that the enclosure doors remain closed during the installation process in case of rain or snow Leaving these doors open dur
31. icy for return shipments outside of the contiguous United States Canada and Mexico For single phase inverters 7 5kW and lower Solectria Renewables covers replacement inverters or parts necessary to repair the product and shipments of parts to and from the customer via a Solectria Renewables selected non expedited surface freight within the contiguous United States Canada and Mexico For Alaska Hawaii and all other installation locations Solectria Renewables will cover the cost of return shipment of product one way from the customer The warranty does not include customs fees broker fees or other taxes that may be imposed by the government agency Contact Solectria Renewables customer service for details on the freight policy for return shipments outside of the contiguous United States Canada and Mexico Obtaining Service If your product requires troubleshooting or warranty service contact your distributor or dealer installer If you are unable to contact your distributor or dealer installer or the distributor or dealer installer is unable to provide service contact Solectria Renewables directly at the number listed on the website in the customer service section for your product Solectria Renewables may send personnel to a jobsite or contract with an area technician installer or other authorized trained service personnel to service replace components Reimbursement for contracted services Solectria Renewables will submit a pu
32. ing installation will void the warranty NOTE If the inverter is to be stored outdoors before being installed and gt commissioned care must be taken to avoid condensation inside the unit Removing the protective shipping wrap and placing a small space heater inside the unit can help minimize the amount of condensation that can occur during onsite outdoor storage Criteria for device mounting e Because the power electronics are within the rainproof main enclosure the inverter can be mounted outdoors e The maximum life for the inverter can be achieved by mounting the unit in a clean dry and cool location e For optimal electrical system efficiency use the shortest possible AC and DC cables and use the maximum allowable cable size e Avoid installation in close proximity to people or animals as there is an audible high frequency switching noise e Install the inverter in an accessible location following NEC codes for enclosure and disconnect door clearances and proximity to other equipment e Although the inverter is designed to function at full power continuously in up to 50 C ambient temperatures for optimal inverter life and performance do not mount the inverter in direct sunlight especially in hot climates If the unit must be mounted in direct sunlight a metal sun shield is recommended It is recommended that the inverter is mounted on the north side of buildings or on the north side of a ground mount PV array Instal
33. ion Provide external ventilation to maintain an ambient condition of less than 50 C The ambient temperature should be kept as low as possible at all times for optimal inverter operation and life SGI 500 55000 Btu hr SGI 300 32000 Btu hr SGI 266 28000 Btu hr SGI 250 26000 Btu hr SGI 225 24000 Btu hr Table 2 2 Indoor Cooling Requirements Installation and Operation Manual Rev D SGI Series Inverters 2 1 Inverter Positioning Correct mounting position for the inverter is vertical with the mounting feet on the floor This diagram shows the basic inverter footprint dimensions e 109 a Eigen lage 5 1 a e weg mg Ro vi H aom fF Mounting hole 3 Figure 2 1 SGI Series Dimensions Top View 2 2 Leveling the Inverter The inverter must be mounted on a flat and level plane in order for proper operation of the doors and integral DC disconnect and AC breaker To check if the inverter is properly leveled the top of each pair of doors should be aligned with one another If the top edges are not aligned level the inverter by placing aluminum shims under the appropriate mounting foot prior to securing the inverter Acceptable Door Alignment Incorrect Door Alignment Figure 2 2 Leveling the Inverter for Proper Door Alignment NOTE Failure to properly level the inverter may cause damage to the enclosure resulting in water infiltration or degradation of the enclosure NOTE Failure t
34. is displays inverter errors event history Timestamps are formatted as MM DD YY 1 Err Counts 2 Err Log 3 Clear List of Logged Events Fan Life Reached MOV Fault AC Volt High AC Volt Low AC Freq High DC GND FAULT Min Vmpp Reached AC Contact Open CT Failure Temporarily disables the AC output of the inverter Serial port address ID of the inverter Serial port baud rate 19200 or 9600 AC Voltage Critical High AC Voltage High AC Voltage Low AC Voltage Critical Low AC Frequency Low AC Frequency Critical Low AC Frequency High Not adjustable Inverter AC power output level Inverter VAC Transformer model Limit AC Power 96 Wait time in minutes seconds 4 digit pin code to set limits Note data is only available when inverter is operating Displays cumulative counters for each supported event error with the highest error count shown first Displays events change of state with the earliest event shown first Clear History Options Err Counts This clears the Err Counts menu Err Log This clears Err Log menu All This clears both error menus AC Islanding e Vsense Err Open Phase e Contactor Fail AC Freq Low e PS Fail NTC Failure e PS Wake Fail IGBT Overtemp e PS Fail Slave Desat Error Power Derated DC Volt High MAG Failure 34 e Lost Freq Lock e VDC Ctrl Fail e DMGI Overtemp Installation and Operation Manual Rev D SGI Series Inverters Monitor Menu Displays monitor setting
35. lation and Operation Manual Rev D SGI Series Inverters A CAUTION Please follow these guidelines Be sure to verify load capacity of floor roof or concrete pad mounting area Inverter Model Fork Lift SGI 500 6980 lbs 8000 Ibs SGI 300 266 250 5650 Ibs 6000 lbs SGI 225 5170 lbs 6000 Ibs Table 2 1 Weight and Required Fork Lift Capacity The ambient temperature must be between 40 C and 50 C for full power continuous operation The inverter will automatically reduce power or may shut down to protect itself if ambient air temperature at the intake rises above 50 C The National Electrical Code NEC requires that the inverter be connected to a dedicated circuit and no other outlets or device may be connected to this circuit See NEC Article 690 The NEC also imposes limitations on the size of the inverter and the manner in which it is connected to the utility grid See NEC Article 690 for guidance within the US A minimum distance of 18 inches must be clear behind the inverter for cooling air exhaust and service access A clearance distance of 36 inches behind the inverter is highly recommended to aid in cleaning the exhaust screens A minimum distance of 12 inches must be clear above the inverter for ventilation A minimum distance of 6 inches must be clear to the sides of the inverter If you are installing the inverter in a utility vault or electrical closet the air circulation must be sufficient for heat dissipat
36. ler may land a neutral conductor or a set of neutral conductors directly on the neutral terminal of the inverter s integrated transformer The inverters are designed with a routing path through the inverter enclosure and a means for connecting these conductors to accommodate this requirement Each SGI inverter includes an integrated AC breaker that serves as the connection point for the AC phase wiring to the onsite electrical service or grid connection The integrated breaker will have different ratings depending on the inverter model Ampere Rating Interrupt Rating 100 Rated SGI 225 480VAC 400A 25 kAIC No SGI 250 480VAC 400A 35 kAIC No SGI 266 480VAC 400A 35 kAIC No SGI 300 480VAC 400A 35 kAIC Yes SGI 500 480VAC 800A 65 kAIC No Table 4 6 Factory Included AC Breaker Minimum Specifications If the onsite electrical service connection is designed with an overcurrent protection device OCPD it must be dedicated to the PV system and must be adequately rated for the current delivered by the inverter as required by NEC 690 See NEC 690 NEC 705 and NEC 240 for guidance on sizing the building OCPD The table below summarizes the inverter s required ampere rating for nominal 12596 rated OCPDs these ratings may change depending on the interconnect design and whether or not 100 rated OCPDs are used Ampere Rating SGI 225 480VAC 350A SGI 250 480VAC 400A SGI 266 480VAC 400A SGI 300 480VAC 450A SGI 500 480VAC
37. let If the inverter is lifted without the shipping pallet a properly rated safety strap must be placed over the top of the inverter firmly holding it down on the lifting devices forks It is recommended to use two lifting straps one holding the inverter to the left fork and another to the right fork gt NOTE Failure to follow these lifting guidelines may cause structural damage to the inverter and void the warranty Alternatively the inverter can be lifted using the lifting eyes on the top If using this lifting method lift with vertical chains and hooks connected to a proper lifting device Do not lift with an A chain between the two eyes left to right as this will result in permanent damage to the inverter At a minimum use 3 A chain sets going front to rear with each side of the A having a chain length of 4 feet minimum Each A chain must be tensioned equally The recommended method is a 3 beam hoist with 6 equal length tensioned chains hanging down one over each eye bolt An A frame can then be used above the 3 beams Never lift only by the outer 4 eyebolts as this will damage the inverter 12 SGI Series Inverters Installation and Operation Manual Rev D m EC P 500 gt eg FS tege Weken SC SMARTGRID B Figure 3 2 Preferred Straight Chain Lifting Method 13 SGI Series Inverters Installation and Operation Manual Rev D 4 Minimum N
38. lure to follow the labeling may cause the inverter not to be able to sense the DC voltage preventing the inverter from turning on 20 Installation and Operation Manual Rev D SGI Series Inverters The grounded subcombiner plate that accompanies the fused subcombiner is populated with a number of lugs of the appropriate size to match the wiring inputs of the fused subcombiner TD E ER RR GK RSR SE BREESE Ce sam cam n ca ca hia sa o pie sa CEE WENNER J E og 3 3 LJ L e SGI 500 8 positions SGI 500 16 positions SGI 500 32 positions 8 lugs 8 lugs two wires per lug 16 lugs double lugs SGI 225 300 6 positions SGI 225 300 12 positions SGI 225 300 24 positions 6 lugs 6 lugs two wires per lug 12 lugs double lugs Cu or Al Conductors Cu or Al Conductors Cu or Al Conductors Max 16 x 2AWG 300kcmil Max 16 x 2AWG 300kcmil Max 32 x 6AWG 1 0AWG 75C connections 550 in Ibs 75C connections 550 in Ibs 75C connections 50 in lbs 1 2 wires per lug 2 wires per lug 1 wire per lug position Table 4 2 DC Grounded Inputs Fused Subcombiner The grounded DC connections are bonded to the ground system within the inverter through the ground fault detection and interrupt GFDI circuit The PV grounded connections should not be bonded to the ground system at any other point The PV ungrounded connections must never be bonded to the ground system at any time at any point outside of the inverter This bond is ma
39. m oxide 19 Installation and Operation Manual Rev D SGI Series Inverters The fused subcombiner plate is populated with a number of fuse holders in a variety of configurations designed to meet numerous array designs THE Br j LII E I pa date su iab D EP D BR 562868 84 a age zE is iam an n ca clam Lies oae d a NUS VS KN 1 v 3 3 3 SGI 500 8 positions SGI 500 16 positions SGI 500 32 positions 225 400A 600VDC fuses 110 200A 600VDC fuses 70 100A 600VDC fuses SGI 225 300 6 positions SGI 225 300 12 positions SGI 225 300 24 positions 225 400A 600VDC fuses 110 200A 600VDC fuses 70 100A 600VDC fuses Cu or Al Conductors Cu or Al Conductors Cu or Al Conductors Max 16 x 2AWG 300kcmil Max 16 x 2AWG 300kcmil Max 32 x 6AWG 1 0AWG 75C connections 275 in lbs 75C connections 375 in lbs 75C connections 100 in lbs 1 2 wires per fuse position 1 wire per fuse position 1 wire per fuse position Table 4 1 DC Ungrounded Inputs Fused Subcombiner NOTE Not all of the fused positions will be used in all designs In the case that not all of the positions will be used the inverter will ship with spare fuses in the unused locations The locations of the used and unused positions will be clearly gt labeled on the shield that covers the exposed terminals The installer must follow the labeling for the used connections to ensure proper functionality of the inverter Fai
40. menu AC Energy Cumulative AC Energy kWh AC Power AC Power output W AC Voltage AC Voltage Three phase V AC Frea AC Frequency Hz AC Current average AC Current Three phase average A DC Voltage DC Voltage V Apparent Power Apparent AC Power output VA Reactive Power Reactive AC Power output VAr Reactive Avail Available Reactive AC Power output Var React Energy Cumulative reactive energy generated kVArh React Energy Cumulative reactive energy received kVArh Heat Sink Heat Sink Temperatures C 41 3 DC Current 41 2 DC Current A 1 2 Only available with SolZone DC Current 43 4 DC Current A 43 4 Only available with SolZone DC Current 45 6 DC Current A 5 6 Only available with SolZone DC Current 47 8 DC Current A 37 8 Only available with SolZone Note data will only be available when inverter is awake and communicating 33 Installation and Operation Manual Rev D Set Inverter Menu SGI Series Inverters This displays inverter parameters some of which may be modified with the keypad Use the n Lt buttons to scroll up and down through the list Pressing esc will take the screen back to the start menu Power Disable Inverter ID Baud Rate Vac Very High Vac High Vac Low Vac Very Low Fac Low Fac Very Low Fac High Power Level VAC Iransformer Limit Power UL Reconnect 16 Password m EE E ES A kA kA kA kA k UT 5 NN kA OH Inverter Events Menu Th
41. ns of the used and unused positions will be clearly gt labeled on the shield that covers the exposed terminals The installer must follow the labeling for the used connections to ensure proper functionality of the inverter Failure to follow the labeling may cause the inverter not to be able to sense the DC voltage preventing the inverter from turning on 22 Installation and Operation Manual Rev D SGI Series Inverters The grounded subcombiner plate that accompanies the breaker subcombiner is populated with a number of lugs of the appropriate size to match the wiring inputs of the breaker subcombiner d n i CAR ACCC CCE ai es liia le DS PALE PE er ua bd Lad Ve era Pas al K LI Den est orien gt n na LEE 1 diam Hi dall Le e SEL RER GP ae Cl KENE pl D p SGI 500 8 positions SGI 500 16 positions 8 lugs 8 lugs two wires per lug SGI 225 300 6 positions SGI 225 300 12 positions 6 lugs 6 lugs two wires per lug Cu or Al Conductors Cu or Al Conductors Max 8 x 4 OAWG 500kcmil Max 16 x 2AWG 300kcmil 75C connections 550 in Ibs 75C connections 550 in lbs 1 wire per lug 2 wires per lug or Max 16 x 2 0AWG 250kcmil 75C connections 550 in lbs 2 wires per lug Table 4 4 DC Grounded Inputs Breaker Subcombiner The grounded DC connections are bonded to the ground system within the inverter through the ground fault dete
42. number of your product Preparing the product for shipping 1 Package the unit safely preferably using the original box and packing materials Please ensure that your product is shipped fully insured in the original packaging or equivalent This warranty will not apply where the product is damaged due to improper packaging 2 Include the following a The RMA number supplied by Solectria Renewables clearly marked on the outside of the box b A return address to which the unit can be shipped Post office boxes are not acceptable c Acontact telephone number where you can be reached during work hours d A brief description of the problem Ship the unit prepaid to the address provided by your Solectria Renewables customer service representative Returning a product from outside of the USA or Canada In addition to the above you MUST include return freight funds and are fully responsible for all documents duties tariffs and deposits 44 Installation and Operation Manual Rev D SGI Series Inverters 9 0 Technical Data Input DC from PV array e Maximum open circuit voltage of PV array is 600V DC modules allowed for a maximum inverter open circuit voltage OCV of 600V DC in WARNING NEC 690 7 must be followed to calculate the maximum number of PV extreme cold temperatures for the installation location The open circuit voltage of PV modules depends on the cell temperature and the solar irradiation The highes
43. nverter IGBT Overtemp 978 683 9700 Internal component sensing fault Turn the DC and AC off restart the inverter The inverter may need to be inspected and serviced by an authorized service provider Desat Error 978 683 9700 37 SGI Series Inverters on ct A S O 3 Ou 3 Q O O D m c En O 5 3 c D J D lt SE DC GND Fault A ground fault has been detected in DO NOT TOUCH any equipment including but the PV array not limited to the inverter the PV array disconnects the PV array combiners the PV panels the PV racking system Immediately contact the installer or another qualified person to locate and repair the source of the ground fault The inverter had a UL event and is Wait for the inverter to restart VAC Low in the 5 minute wait period Reconnecting Pac XXXX W Grid voltage may not be present Check for grid voltage Waiting for grid The VAC grid connection phasing does Change the phase wire positions at the Reverse phasing geg not match the inverter inverter connection on the grid side amp restart PVI The power point tracking has been The inverter will hold the Vmpp at this reached level until it increases Pac XXXX W Min Vmpp reached The AC contactor is open when itis being Turn off the inverter and contact Solectria commanded to be closed Renewables The inverter may need to be serviced by an authorized service provider AC Contact Open 978 683 97
44. o properly level the inverter may cause damage to the operating mechanisms of the integral DC disconnect and AC breaker Installation and Operation Manual Rev D SGI Series Inverters 2 3 Mounting Details The inverter includes mounting feet with 6 holes 1 2 12mm diameter on a rectangular pattern for attaching the inverter Note that the outer 4 mounting holes are 2 inside each corner of the main inverter enclosure 2 al Le 1055 LITT e t 34 A D oc Front 4 smi c Outline of enclosure body 6x holes in mounting feet Figure 2 3 SGI Series Mounting Pattern Top View It is recommended to use six hot dip galvanized grade 5 or 8 steel bolts or stainless steel bolts for mounting the feet The correct bolt size is 3 8 10mm diameter Use a heavy lock washer and flat washer with each bolt Alternatively a toe plate can be used at the end of each 4x4 tube foot After mounting is completed remove shipping aids from front shrouds and inside unit WARNING Severe injury or death could occur if the inverter mounting fails and the unit tips over or falls on a person NOTE The weight of the inverter will exert an added load to floor roof or pad where mounted Be sure to verify proper load capacity of mounting surface NOTE If the roof floor mounting only uses the inverter s mounting feet be sure all 6 available foot mount bolt positions are used to secure the inverter
45. ocales ainsi qu la norme nationale am ricaine et canadienne e Le SGI ne contient aucune pi ce requ rant un entretient effectu par l utilisateur Pour toute maintenance veuillez consulter Solectria Renewables ou un installateur agr e par Solectria Renewables les coordonn es de Solectria Renewables et des installateurs agr es sont indiqu es sur le site web de Solectria Renewables www solren com e Avant d installer ou d utiliser le SGI veuillez lire toutes instructions et toutes les mises en garde pr sentes dans ce manuel sur le SGI et sur les modules PV e Le raccordement du SGI au r seau lectrique ne doit tre effectu e ou apres avoir obtenu une entente d interconnexion aupr s de la compagnie locale de distribution lectrique et uniquement par du personnel autoris et qualifi e La surface de tous les capteurs PV doivent tre recouverte enti rement d un mat riel opaque e noir avant de proc der au c blage Les capteurs PV expos s a la lumi re produisent du courant lectrique susceptible de cr er une situation de risque CONSERVEZ CES INSTRUCTIONS Installation and Operation Manual Rev D SGI Series Inverters 1 0 2 0 2 1 2 2 2 3 2 4 3 0 3 1 3 2 3 3 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 5 0 5 1 5 2 5 3 6 0 6 1 6 2 6 3 6 4 Table of Contents OO OO mentrrrce errr serennn ere seit nt rr wernt ten tn aerate ete Sere ee ee eee ares 1 Site Preparation and
46. ombiner verify that the DC voltage is less than 600V DC The PV array open circuit voltage must be below 600V DC V 600V DC under all conditions per NEC 690 Please read the Technical Info section for details Any DC voltage over 625V will damage the inverter and void the warranty WARNING Fuses in the inverter s ungrounded fused subcombiner must only be replaced with the same type and rating 600VDC fuses as originally installed The SGI series of inverters must be ordered with either an integral subcombiner populated with DC fuses or an integral subcombiner populated with DC breakers Many choices are available to meet any design constraint For the 225 400A fused or breaker subcombiner choose any combination of current ratings from 225A 250A 300A 350A or 400A For the 110 200A fused or breaker subcombiner choose any combination of current ratings from 110A 125A 150A 175A or 200A For the 70 100A fused subcombiner no breaker option in this class choose any combination of fuse values from 70A 80A 90A or 100A Either copper or aluminum wire may be used for the DC PV positive and negative conductors although due to terminal size restrictions aluminum wire may not be an option for all cases As with any aluminum wire exercise best industry practices to ensure a reliable connection thoroughly clean the conductor just prior to making the electrical connection and use an oxide inhibitor to prevent the formation of aluminu
47. power to the grid 5 3 Turning off the Inverter e f possible use the keypad to temporarily disable the power output e Turn off the inverter s DC disconnect using the handle on the front door e Turn off the inverter s three phase AC breaker using the handle on the front door e Wait at least one minute for the capacitor bank to discharge 31 Installation and Operation Manual Rev D SGI Series Inverters 6 0 LCD Display and LED Indicators The inverter operates automatically without the need for user interaction The LCD display and Led indicators on the front door of the inverter provide valuable inverter operating information 6 1 LCD Display Figure 6 1 LCD Display 6 2 Button Description amp To move up a level from the current menu 4 t To scroll up or down within the individual menu items To enter into selected menu 32 Installation and Operation Manual Rev D SGI Series Inverters 6 3 Screen Descriptions Main Screen Default Eac XXXX kWh Pac XX W SN Ek Press E Or 4 or to move from the main default screen into the Start Menu To enterinto a selected menu item press the E Start Menu 1 Measurements 2 Set Inverter 3 nverter Events 4 Monitor 5 RG Meter if installed 6 Info Measurements Menu This displays the data retrieved from the inverter Use the Lu buttons to scroll up and down through the list Pressing lese will take the screen back to the start
48. r connection to the customer s broadband internet service To enable the SolrenView monitoring follow these steps using the display panel e 1 Press E to enter the display set mode Press to MONITOR Press B to enter monitor set mode Press to SRV Mode Press HJ to activate the change mode Press to select Yes Press D A M m to confirm 4 10 SolrenView Air Monitoring If you have purchased the 3G cellular SolrenView Air monitoring option all of the hardware will be installed in the inverter and configured at the factory The inverter will begin to report to the SolrenView server as soon as the inverter is commissioned with AC and DC power and a cellular signal is present No additional installation or configuration steps are necessary 30 Installation and Operation Manual Rev D SGI Series Inverters 5 0 Commissioning the Inverter PV System At this point the inverter should be mounted all connections are made and the inverter is ready for power to be applied NOTE Make sure all tools parts etc are removed from the vicinity of the inverter before turning on system before turning on NOTE With the PV modules connected and inverter disconnects still off perform a final check of the PV voltage and polarity once more using a digital volt meter and probing the positive and negative PV connections Verify clockwise AC phase rotation for L1 L2 L3 using a phase rotation meter A WARNING Make a final ch
49. rchase order to the designated service personnel before work is performed This purchase order will cover time expected for the required service and most likely an allocation for travel time Direct returns may be performed according to the Solectria Renewables Return Material Authorization Policy In any warranty claim dated proof of purchase must accompany the product and the product must not have been disassembled or modified without prior written authorization by Solectria Renewables 40 Installation and Operation Manual Rev D SGI Series Inverters Proof of purchase may be in any one of the following forms The dated purchase receipt from the original purchase of the product at point of sale to the end user or The dated distributor or dealer installer invoice or purchase receipt showing original equipment manufacturer OEM status or The dated invoice or purchase receipt showing the product exchanged under warranty Solectria Renewables provides technical assistance Monday Friday 8 30am 7pm EST and on call technical support is provided outside normal business hours What does the Solectria Renewables warranty not cover Solectria Renewables Limited Warranties do not cover normal wear and tear of the product or costs related to the removal installation or troubleshooting of the customer s electrical systems These warranties do not apply to and Solectria Renewables will not be responsible for any defect in or damage
50. rom Pallet and Moving Inverter Into Place It is recommended to keep the inverter secured to the pallet and moved as close as possible to the final location prior to removing the pallet To remove the securing bolts use a 9 16 socket and or wrench Completely remove each nut and bolt from the pallet The center of gravity of the inverter is well to the right of center and is marked with a label on the left door of the transformer enclosure right half of the enclosure Use an 8 000lb capable forklift for the SGI 500 or 6 000lb capable forklift for the SGI 225 300 if lifting from the bottom The forks should be set to an inside spacing so they fit just to the left of the inverter s 4 x 4 aluminum tube feet Before lifting make sure forks are against the left edges of both the right most foot and center foot and install safety chains with failsafe hooks to prevent inverter from sliding off forklift see following diagrams 11 Installation and Operation Manual Rev D SGI Series Inverters be SMARTGRID 500 s 5 6 Figure 3 1 Forklift Lifting Positions Use positions A when lifting or moving the inverter while attached to the pallet Use positions B when lifting or moving the inverter removed from the pallet Note that the lifting diagrams show the inverter being lifted while mounted on the shipping pal
51. s that may be modified with the keypad tur E ae qw LAN a DHCP Mode b Static Fallback IP Gateway IP Netmask Date Time Reboot Remote SRV Reset SRV Local Area Network configuration applicable only for SolrenView monitoring See SolrenView manual on DHCP If DHCP is turned on this is then used as the fallback IP IP address of LAN s default gateway Subnet mask Manual time set This may be overwritten by scheduled NIST updates Reboots the monitor This starts the transmit process necessary for SolrenView monitoring Note Enabling this option when SolrenView service has not been purchased will result in unnecessary wear on the storage memory Settings are cleared to factory defaults Caution This will also clear Revenue grade KYZ counters 35 Installation and Operation Manual Rev D SGI Series Inverters 6 4 LED Indicators The LED indicators mounted on the front left of the inverter enclosure just above the LCD screen give the installer and user a quick look at what state the inverter is in and if it is operating normally GREEN POWER the unit is powered up and or feeding power to the grid RED ERROR or FAULT the inverter is not providing power due to an error or fault YELLOW indicates that a ground fault in the PV array has been detected and it must be located and repaired before the inverter will function Check GFDI breaker if YELLOW LED remains solid Figure 6 2 LED Indicators DO
52. source of the ground fault Be aware that normally grounded conductors and equipment may be energized and may pose a significant shock and or fire hazard WARNING If the GFDI breaker trips upon connection of one or more combined strings a ground fault in the array must be located and eliminated before proceeding The DC ground fault is eliminated when the GFDI breaker can be engaged into its lever up position and remain in that position Failure to obey these instructions may cause the grounded conductor to rise to potentially unsafe voltage levels WARNING Even when the DC disconnect is in the off position the ungrounded DC conductor leading up to the DC disconnect will remain live on the PV side as long as the PV modules are in daylight The inverter side of the DC disconnect will also remain live after the disconnect has been shut off until 60 seconds after the LEDs turn off as DC bus capacitors in the inverter discharge 24 Installation and Operation Manual Rev D SGI Series Inverters 4 5 AC Wiring The SGI series of inverters must be connected to the grid with three phase conductors and the appropriate AC grounding conductors No neutral conductor is required for the inverter to operate However some utilities or jurisdictions may require that a neutral connection be made from the onsite electrical service directly to the inverter s transformer in order to meet their effective grounding requirements Therefore the instal
53. t open circuit voltage occurs when the PV modules are at the coldest temperature and in bright sun Because the PV modules also have a reduction in voltage at high cell temperatures you must make sure the MPPT voltage of the strings will not drop below the minimum inverter DC input voltage in very hot temperature conditions Both the maximum open circuit voltage OCV when at cold extreme and minimum MPPT voltage when at hot extreme can be calculated for a PV module using its specification sheet PV module string sizing can then be used to determine how many modules can be used in a string Visit www solren com stringsizing html to use Solectria s interactive string sizing tool 45 Installation and Operation Manual Rev D SGI Series Inverters 9 1 Input DC PV Specifications Standard Units Operating voltage range 300 600 Input voltage MPPT range 300 500 VDC ADC Low DC Voltage Option Units Operating voltage range low voltage option Input voltage MPPT range low voltage option 285 600 285 500 Strike Voltage low voltage option 370 DC 56 Maximum input current low 308 398 9 1080 1812 ADC voltage option Continuous input current low 208 398 956 1080 1812 ADC voltage option DC voltage measurement accuracy 2 EE 230 5 256 2725 308 16 Maximum open circuit voltage C Absolute Maximum open circuit 625 voltage DC current measurement accuracy 2 SolZone option only DC Ground Fault Trip Se
54. tting PA Table 9 1 DC Input Specifications 46 Installation and Operation Manual Rev D SGI Series Inverters 9 2 Output AC Specifications The inverters are designed to feed power into a standard 60Hz three phase AC utility service provided within a facility by a transformer with a rating of not less than the rating of the inverter s connected to it As required by NEC there must be a dedicated three phase circuit breaker for the PV inverter connection The inverter is designed to work with the range of AC voltages for a three phase service defined by IEEE 1547 2003 and ANSI C84 1 ME GET 35 73 Turn on AC Turn onACvoltagerange range 9296 10596 VAC Default over under voltage trip points and per IEEE Std 1547 2003 Table 1 or utility specific order Se codes Over Over voltage trip magnitude adjustability trip magnitude adjustability 10096 12096 Vnom Under voltage trip magnitude adjustability 50 100 Vnom Over under voltage trip time adjustability 0 1 30 Voltage measurement accuracy 2 Operating frequency adjustability 60 3 0 40 5 Under frequency trip time adjustability 0 16 300 Frequency measurement accuracy 0 1 Maximum Rated Output Current 208VAC 624 693 738 332 1388 Arme external transformer Maximum Rated Output Current 208VAC 624 693 738 N A N A Arme internal transformer Short Circuit Current Contribution Utility Short Circuit Current Output 480VAC
55. verters 10 5 Appendix E UL1741 IEEE 1547 CSA22 2 107 1 Listing Letter viner Route 11 nd NY 13045 Intertek Telephone 607 753 5711 Facsimile 607 756 9881 www intertek etisernko com June 30 2010 Letter Report No G100042079CRT 001b Project No G100042079 Michael Zuercher Martinson Ph 978 683 9700 Solectria Renewables LLC 360 Merrimack St Email michael solren com Building 9 Floor 2 Lawrence MA 01950 Subject ETL Listing Evaluation of Grid tied Photovoltaic Inverter Dear Mr Michael Zuercher Martinson This letter confirms that Intertek has completed the Safety evaluation of your SGI 500 SGI 300 SGI 266 SGI 250 and SGI 225 Grid tied Photovoltaic Inverter and have listed them to the following standard UL 1741 Safety for Inverters Converters Controllers and interconnection System Equipment for Use With Distributed Energy Resources First Edition May 7 1999 with revisions through January 28 2010 CAN CSA C22 2 No 107 1 2001 09 01 Ed 3 R2006 This evaluation was authorized by signed quotation Q100042079 dated January 31 2010 If there are any questions regarding the results contained in this report or any of the other services offered by Intertek please do not hesitate to contact the undersigned W S eee Completed by Haiwen Liu Reviewed by Steven Pasternack Title Staff Engineer Title _ Sr Staff Engineer 2 s IT et ES Fc Signature ear Signature Date June 30
56. w Measure the actual VAC compared to the LCD limit display VAC If VAC is less than acceptable limits inverter will restart when normal Pac XXXX W AC Voltage Low The AC grid frequency is exceeding the If possible measure the frequency or contact high limit local utility provider Pac XXXX W AC Freq High The AC grid voltage is less than the low If possible measure the frequency or contact limit local utility provider Pac XXXX W AC Freq Low The AC contactor or sensing circuit has Turn off the inverter and contact Solectria failed Renewables The inverter may need to be serviced by an authorized service provider Contactor Fail 978 683 9700 An internal failure has occurred in oneor Turn the DC and AC off restart the inverter more of the cores The inverter may need to be inspected and serviced by an authorized service provider CT Failure 978 683 9700 The AC contactor is open when itis being Turn off the inverter and contact Solectria commanded to be closed Renewables The inverter may need to be serviced by an authorized service provider Thermal disc 978 683 9700 The internal temperature sensor has Turn the DC and AC off restart the inverter failed The inverter may need to be inspected and serviced by an authorized service provider NTC Failure 978 683 9700 The internal temperature is exceeding Turn the DC and AC off let the inverter cool operational limits to ambient temperature and restart the i
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