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Conext™ Grid Tie Solar Inverter

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1. Adjustment Range Default ee Setting Setting Tolerance Low High Tolerance Phase to Neutral RMS 132 00 0 5 2 5 V 130 50 135 00 1 5V High Threshold Voltage Phase to Neutral RMS 127 20 0 24 V 126 96 135 00 1 5V Reconnect Voltage Phase to Neutral RMS 105 60 0 5 2 5 V 102 00 107 10 1 5V Low Threshold Voltage Voltage RMS High 1000 0 0 1 s 1000 2000 0 0 1 s Clearing Time ms Voltage RMS Low 2000 2000 5000 Clearing Time ms Frequency High 60 50 0 1 Hz 60 40 60 60 0 1 Hz Threshold Frequency Low 59 30 57 00 59 80 Threshold Frequency High Clearing 160 See 160 200 0 0 1 s Time ms important Frequency Low Clearing 160 Note Balov ligg 300000 Time ms Reconnect Delay ms 305000 n a 60000 1305000 n a NOTICE Setting Frequency High Clearing Time or Frequency Low Clearing Time to 160 ms results in a Conext Inverter clearing time of 90ms 0 01 s 0 02 s This performance meets CSA 107 1 requirements for a grid interconnect disconnect time limit of six cycles for Canadian installations A 12 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Output Power Versus Ambient Temperature Output Power Versus Ambient Temperature Once the heat sink on the Conext Inverter reaches a temperature limit the Conext Inverter reduces its energy output to make sure component ratings are not exceeded The follow
2. 253mm 9 96 in Es 45mm Typ 1 77 in 40mm Typ 1 57 in 1 I es og es en a Rectangular slots x 30 8x 30 5 16 in x 1 3 16 in i m mm i se Si aame A aemm A eme i Mounti A Flanges Mounting hooks je 776 mm Oo 30 55 in i 90 mm 3 54 in oc 1 Mounting slots 78mm 3 07 in P ap a 49 ox 1mm 13 5 mm 71 in 53 in 63 mm 2 48 in Figure 2 3 Mounting bracket and Conext Inverter Conext TX 5000 NA and Conext TX 3800 NA 2 8 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Rectangular slots x 30 8 x 30 5 16 in x 1 3 16 in Mounting Flanges 90 mm 3 54 in 253 mm 9 96 in Ll 45mm Typ 1 77 in 40mm Typ 1 57 in f 1 oo E E oo 7 681 mm 26 81 in 1 I 78 mm 3 07 in ERON a 18mm gt 71 in 63mm Aa 13 5mm 2 48 in 53 in Mounting the Conext Grid Tie Solar Inverter Mounting slots Mounting hooks Figure 2 4 Mounting bracket and Conext Inverter Conext TX 3300 NA and Conext TX 2800 NA 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Installation Clearance Requirements For optimal and safe operation maintain adequate clearance around the Conext Inverter If the minim
3. Conext Inverter 2 Conext Inverter 1 HIL Grounding not shown Figure 3 16 Improper multiple Conext Inverter connections 3 16 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Connecting the AC Wiring Connecting the AC Wiring A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Before wiring the Conext Inverter make sure the main breaker in the primary utility breaker box is switched OFF locked out and tagged out Switch this breaker on only after all wiring is completed as instructed in the procedures e Ifthe DC wiring has been completed make sure the DC AC disconnect switch is in the OFF position and isolate or disconnect all sources of electricity If the system does not provide a PV disconnect device cover the PV array with opaque dark material Failure to follow these instructions will result in death or serious injury The Conext Inverter can be connected to a single bi directional meter or to dual meters where one meter indicates power used and the second meter indicates power sold power supplied back to the utility Consult the local utility to determine the proper components to install and obtain any permits required prior to installation Make sure all connections are secured in the terminal block See Cage Clamps
4. 2 2 Installation Codes 2 2 Conext Grid Tie Solar Inverter Location 2 2 MPPT Requirements eee rere 24 Mounting the Conext Grid Tie Solar Inverter 2 5 Dimensions and Knockout Locations 000002 2 5 Installing the Mounting Bracket 2 8 Mounting the Conext Grid Tie Solar Inverter on the Bracket 2 11 3 Wiring the Conext Grid Tie Solar Inverter Grounding Requyremens lt lt scsccess ars Er SSS Shee 3 3 AC GLOMNGING gt erregen 3 3 PV Grounding E rere rere rere ennn 3 3 Ground Fault Fuse gt er TH ET ee 3 5 Wiring Requirements HH rr rr rrr rrr nnenn 3 5 AC Circuit Breaker Requirements 3 6 DC AC Disconnect Switch 33 oss ope RR ee see nes 3 6 Combiner Fuses Optional Sss Psesece tes scot HE Sie See one 3 6 Accessing the Wiring Terminals 400 0000 3 8 Connecting the DC Wiring 0 5 err rere ee 3 11 Connecting the DC Wiring Using the Optional Fuse Holder 3 13 DC Wiring for Multiple Conext Grid Tie Solar Inverters 3 15 Con
5. Figure 3 11 DC connections for single PV string 3 12 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Connecting the DC Wiring Connecting the DC Wiring Using the Optional Fuse Holder AWARNING HAZARD OF FIRE If the array consists of more than two strings fusing might be required to help prevent conductor overloads Consult your local authority and electrical code for details Failure to follow these instructions can result in death or serious injury You can connect the DC wiring using an optional fuse holder See Combiner Fuses Optional on page 3 6 for more information The following procedure is illustrated in Figure 3 12 Label the positive and negative wire pairs appropriately for example PV1 String 1 POS PV1 String 1 NEG PV1 String 2 POS and so on See Cage Clamps on page 3 10 for instructions on using Cage Clamps PV1 String 1 PV1 String 2 PV1 String 3 Lok e el _ Ss TUNE ir ololo e 7 L oO Grounding not shown ge Er Figure 3 12 DC connections for multiple PV strings 975 0596 01 01 Revision A 3 13 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter To wire the PV array to the
6. 4 4 Disconnect Test 2 rrr rr rrr rrr rr ree 4 6 Locating the Firmware Version Number 4 7 Monitoring the Conext Grid Tie Solar Inverter Monitoring the Front Panel Display 5 2 Front Panel Display Screens and What They Mean 7 5 3 Startup Mode Be men R a aerate E R A AER e RI EE 5 3 Normal Operation Mode meer ee rd 5 5 Offline Moden asen Ap ptr ee ee a a re ee 5 7 Fault Modes Tosiek eiri piei igs ER 5 8 Special Screens ee e aig ae a E a E ar a 5 10 CUSIOM SCIEENS Here Rs RS TRITT Ra Ae re Pees 5 11 Stat s Indicator ighis snig ee er ge 5 12 Maintenance and Troubleshooting Factors Affecting Conext Grid Tie Solar Inverter Performance 6 2 PV Altay Factors 222 nase nie Sie sions Dessen ise oe be seen 6 2 ther Factors ae adil a a a ia 6 3 Performing General Maintenance errr ee 64 Replacing Parts 0000000000000 eee 64 Replacing the Ground Fault Protection Fuse 6 5 Replacing the Conext Grid Tie Solar Inverter 6 7 Identifying Error Fault Conditions and Solutions 6 11 Specifications Electrical Specifications lt S i s eter ae EHE re ahaa e A 2 Conext TX
7. 2 6 975 0596 01 01 Revision A This chapter is for use by qualified personnel only 137 mm 5 39 in 617mm 24 28 in 865 mm 34 05 in 893 mm 35 17 in ai of ee Par i CS J 146mm _ 403 5 mm 5 76 in 15 88 in a 185 6 MM _ 7 31in 40 3 mm 1 59 in EN 40 2 mm 1 58in Dual 35 mm or 27 mm 1 3 8 or 1 in knockouts 2 places on bottom Mounting the Conext Grid Tie Solar Inverter 83 mm 3 28 in 63mm 95 2 48 in N 3 75 in F y A 30mm _ som 1 191 al ne 1 19 n 1 19 in 62 mm I 62MM 2 43 in 2 43 in 22 mm 7 8 in knockouts 4 places on back Dual 35 mm or 27 mm 1 3 8 or 1 in knockouts 2 places on back 40 2 mm 1 58 in Figure 2 2 Conext Inverter dimensions and knockout locations Conext TX 3300 NA and 2800 NA 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Installation Installing the Mounting Bracket Secure the mounting bracket to a vertical structure or surface The Conext Inverter mounting hooks attach to the flanges on the mounting bracket Mounting bracket dimensions are shown in Figure 2 3 and Figure 2 4 If mounting more than one Conext Inverter install each mounting bracket at least 6 inches 150 mm apart to provide enough space for the Conext Inverters to hang side by side
8. on page 3 11 e Connecting the AC Wiring on page 3 17 e DC and AC Wiring for Multiple Conext Grid Tie Solar Inverters Single Phase System on page 3 18 e Communications Wiring for Multiple Conext Grid Tie Solar Inverters on page 3 20 e Communications Wiring for Monitoring a Single Conext Grid Tie Solar Inverter on page 3 26 3 2 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Grounding Requirements Grounding Requirements AC Grounding PV Grounding The Conext Inverter has the following grounding requirements The Conext Inverter must be connected to the AC ground from the utility via the Conext Inverter ground lug see Figure 3 1 on page 3 3 The PV array frame ground should be connected to the Conext Inverter ground bar see Figure 3 1 on page 3 3 The size for the conductor is usually based on the size of the largest conductor in the DC system A DC grounding electrode conductor might be required by the AHJ Use the Conext Inverter ground bar for this connection see Figure 3 2 on page 3 4 CAUTION RISK OF EQUIPMENT DAMAGE Provide adequate clearance for grounding wires inside the Conext Inverter wiring box Make sure the bare copper grounding wire is more than Ye inch clear of the DC AC interconnect circuit board Failure to follow these instructions can result in equipment damage Two inch 7 mm knockouts in the bottom of the wir
9. s specific characteristics maximizing its output at all times The high frequency solid state design of the Conext Inverter is extremely efficient See Appendix A Specifications for the efficiency ratings of each model Multiple Conext Inverters can be networked together for increased net metering capacity or future system growth All models have adjustable voltage and frequency disconnect settings and can be aggregated above 30 kW on a single point of common coupling PCC See Adjustable Voltage Frequency and Reconnection Settings on page A 12 The Conext Inverter uses the Xanbus communications protocol enabling it to communicate with multiple Conext Inverters connected within the system For more information see Xanbus Network Technology on page 3 21 Standard Features The Conext Inverter has the following standard features e Sealed electronics section protecting power electronic components e Liquid Crystal Display LCD providing easy to read system status and daily cumulative energy production information e Two LED indicator lights providing unit status and ground fault indication e Wiring disconnect box providing protection for all AC and DC connections and eliminating exposed live wiring if the electronics section of the Conext Inverter is removed 975 0596 01 01 Revision A 1 3 Introduction Front Panel Features Heat sink LCD LED indicator lights Wiring disconnect box DC
10. 1 1 1 1 a 1 1 1 1 1 1 1 1 a Ww oa co co y Koua yya Values in legend are VDC 0 of Rated Output Power 4 Conext TX 3800 NA 208 VAC typical efficiency Figure A 975 0596 01 01 Revision A A 6 This appendix is for use by qualified personnel only Conext TX 3300 NA Input Model number Electrical Specifications 878 3301 PV input voltage Maximum Power Point range Certified operating range 195 550 VDC Absolute maximum array open circuit voltage 600 VDC Maximum PV input current 18 ADC 240 VAC 17 5 ADC 208 VAC Maximum array short circuit current 24 ADC STC PV reverse polarity protection Shunt diode Array grounding Array negative is grounded internally via 1 A fuse PV ground fault protection GF detection when 1 A fuse clears Output Nominal AC output voltage 240 VAC 208 VAC Maximum AC output power 3300 W 3100 W AC operating range utility voltage phase to phase 212 263 VAC 184 224 VAC AC operating range utility voltage phase to neutral 106 1 131 5 VAC AC nominal output frequency 60 Hz AC operating range utility frequency 59 3 60 5 Hz Startup current OA Maximum AC continuous output current 14 0A 15 2 A Maximum output fault current 20 A Maximum output overcurrent protection internal AC 20 A fuse rating Maximum utility backfeed current OA Total harmonic
11. 96 7 96 4 CEC efficiency 96 0 95 5 Nighttime tare loss 1 25 W 1W 2 PS a 3 E wi 80 75 70 m 10 20 30 40 50 of Rated Output Power Figure A 1 Conext TX 5000 NA 240 VAC typical efficiency 975 0596 01 01 Revision A 60 70 80 30 100 Values in legend are VDC This appendix is for use by qualified personnel only Specifications gt gt c a iq lu 0 10 20 30 40 50 60 70 80 90 100 of Rated Output Power Values in legend are VDC Figure A 2 Conext TX 5000 NA 208 VAC typical efficiency Conext TX 3800 NA Input Model number 878 3801 PV input voltage Maximum Power Point range Certified operating range 195 550 VDC Absolute maximum array open circuit voltage 600 VDC Maximum PV input current 20 8 ADC 240 VAC 19 5 ADC 208 VAC Maximum array short circuit current 24 ADC STC PV reverse polarity protection Shunt diode Array grounding Array negative is grounded internally via 1 A fuse PV ground fault protection AA GF detection when 1 A fuse clears 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Electrical Specifications Output Nominal AC output voltage 240 VAC 208 VAC Maximum AC output power 3800 W 3500 W AC operating range utility voltage phase to phase 212 263 VAC 184 228 VAC AC operating range utility voltage phase t
12. C Accept wire gauges of at least 10 AWG Fully disconnect and isolate the fuse body from the PV circuit when opened to allow for finger safe removal of PV fuses when servicing The fuses must be Compatible with the fuse holder used refer to the fuse holder manufacturer s instructions Marked with either CSA certified or UL Listed UR Recognized for use in 600 VDC circuits Appropriately rated according to the array sizing and in accordance with Article 690 of the NEC as well as any other local electrical codes 975 0596 01 01 Revision A 3 7 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Accessing the Wiring Terminals You must remove the Conext Inverter s wiring box cover to access the terminal blocks ground bar and communications ports To remove the wiring box cover see Figure 3 4 1 Make sure the DC AC disconnect switch is set to OFF A safety lock prevents removal of the wiring box cover if the switch is not set to OFF 2 Using a Phillips screwdriver loosen but do not remove the two screws on the bottom side of the wiring box until you can lift the bottom of the wiring box cover 3 Lift the bottom of the wiring box cover Slide the wiring box cover down and then lift it off the chassis Figure 3 4 Removing the wiring box cover AC and DC connections are made at the wiring terminals shown in Figure 3 6 on page 3 9 A DANGER HAZARD OF
13. XanBus 250 Kbps TX OK RX XanBus 250 Kbps TX RX OK 975 0596 01 01 Revision A Xanbus communication is not established because a Xanbus enabled device is not connected to the Conext Inverter or interference is present in the communications path to Xanbus enabled devices This is expected behavior if the standalone Conext Inverter is not connected to a Xanbus enabled device and no action is required If Xanbus communication is required make sure the Conext Inverter is connected to a Xanbus enabled device This chapter is for use by qualified personnel only 6 14 Specifications Appendix A contains specifications for the Conext Grid Tie Solar Inverter The topics in this appendix are organized as follows e Electrical Specifications on page A 2 e Output Power Versus Ambient Temperature on page A 13 e Environmental Specifications on page A 13 e User Display on page A 13 e Mechanical Specifications on page A 14 e Regulatory Approvals on page A 14 Specifications Electrical Specifications Conext TX 5000 NA Input Model number 878 5001 PV input voltage Maximum Power Point range Certified operating range 240 550 VDC Absolute maximum array open circuit voltage 600 VDC Maximum PV input current 22 5 ADC 240 VAC 20 5 ADC 208 VAC Maximum array short circuit current 24 ADC STC PV reverse polarity protection Shunt diode A
14. 01 Revision A This chapter is for use by qualified personnel only Indoor Outdoor Orientation Temperature Distance Debris free Planning the Installation Conext Inverter failure due to improper installation will void the Conext Inverter s warranty Consider the following when determining where to install the Conext Inverter The Conext Inverter uses a Type 3R rated enclosure vertical mount only that can be mounted indoors or outdoors Type 3R enclosures are intended for outdoor use primarily to provide a degree of protection against falling rain and to be undamaged by the formation of ice on the enclosure While the 3R rated enclosure protects the Conext Inverter from moisture outdoor installations should be located away from lawn sprinklers and other sources of spray A sun shade is recommended for outdoor installations In bright sun conditions when the Conext Inverter is at or near full output with an ambient temperature above 104 F 40 C shading the Conext Inverter will help increase its performance A sun shade can also help protect the Conext Inverter from dust debris and birds The sun shade should be made from an opaque dark material to provide shade for the heat sink It should be large enough and positioned so that it shades the heat sink when the Conext Inverter is operating at full power usually a four hour time period centered around noon Make sure the shade is installed according to the minimu
15. A 5 7 Monitoring the Conext Grid Tie Solar Inverter Additional offline messages for multiple inverter systems Fault Mode Fault Mode causes 5 8 Multiple inverter systems in offline mode display all the message screens shown in Table 5 6 plus the additional screens shown in Table 5 7 These additional screens are displayed following the Time Online screen These screens are displayed only in multiple inverter systems with communications cables installed If you continue to tap the Conext Inverter the LCD continues to cycle through all of the available offline mode screens Table 5 7 Additional offline mode screens for each Conext Inverter in a multiple inverter system Tap Display Description 5th Unit OW Power being produced by this Conext Inverter Today 1 25kWh now and cumulative energy produced by this Conext Inverter today 6th Unit Lifetime Lifetime energy produced by this Conext 150kWh Inverter When a fault state is detected the appropriate fault message appears on the front panel display at the next screen refresh within 2 seconds The Conext Inverter fault message screens are shown in Table 5 8 The numbers used in Table 5 8 are examples of what could display when a fault is present These message screens only appear when a fault exists and then they flash alternately with the Inverter Offline default screen Table 5 5 until the fault is corrected Table 5 8 Fault message screens Display App
16. AC disconnect switch Mounting slots Figure 1 2 Main features of the Conext Inverter Wiring Disconnect Box A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH In North America and other locations the wiring disconnect box is an electrical code requirement Regulatory approval is based on the wiring disconnect box always being attached to the Conext Inverter during operation Any attempt to remove this box will invalidate the approvals and create an electrical hazard Make sure the wiring disconnect box is correctly installed in all applications Failure to follow these instructions will result in death or serious injury 14 975 0596 01 01 Revision A Wiring Disconnect Box 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH The 600 volt DC AC disconnect in the wiring disconnect box meets NEC Article 690 requirements It is a non serviceable component and must remain in place Separating the electronics section of the Conext Inverter and wiring disconnect box or removing the wiring disconnect box cover can expose energized conductors PV input circuits in the wiring box ahead of the switch remain energized even when the switch is in the OFF position so hazardous voltage will still be present on the DC input PV terminals under the clear plastic insulation barrier inside the wiring disconnect box e No user serviceable parts inside To be installed and serviced only by qualifie
17. Angle of the sun Partial shade Other Factors Factors Affecting Conext Grid Tie Solar Inverter Performance NOTICE The Conext Inverter will reduce its energy output to help protect its electronic circuits from overheating and to help protect from possible damage in high heat conditions For maximum output in hot climates mount the Conext Inverter in a shaded location with good air flow The angle of the sun in relation to the PV array surface the array orientation can dramatically affect the PV array output The array energy output will vary depending on the time of day and time of year as the sun s angle in relation to the array changes Incident sunlight decreases when the sun is near the horizons such as in winter in North America due to the greater atmospheric air mass that must be penetrated This reduces both the light intensity that strikes the array s surface and the spectrum of the light In general you can expect only four to six hours of direct sunlight per day Shading of only a single module of the array will reduce the output of the entire system Such shading can be caused by something as simple as the shadow of a utility wire or tree branch on part of the array s surface This condition acts like a weak battery in a flashlight reducing the total output even though the other batteries are good However the output loss is not proportional to the shading The Conext Inverter is designed to maximi
18. ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH The insulating barrier must not be removed Failure to follow these instructions will result in death or serious injury Insulating barrier The clear plastic insulating barrier inside the wiring box is a permanent component Its purpose is to separate the AC and DC wiring from the communications cabling and it must not be removed 3 8 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Accessing the Wiring Terminals When wiring the Conext Inverter it is necessary to pull the barrier back to access the wiring terminals See Figure 3 5 After completing the wiring return the insulating barrier to its original position Insulating Barrier DC Terminal Blocks AC Terminal Block Figure 3 6 AC and DC terminal block location 975 0596 01 01 Revision A 3 9 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Cage Clamps The AC and PV terminals use Cage Clamps To insert a wire into a Cage Clamp on an AC or PV terminal 1 Release the Cage Clamp a Insert a flat blade screwdriver into the rectangular hole directly above the wiring hole where you want to insert the wire The screwdriver should be at approximately a 30 angle and the screwdriver s flat face should align to the top edge of the rectangular hole See Figure 3 7 b Push the screwdriver in and then press the spring cag
19. IX 1 Index Information about Your System form WA 4 installation clearance required 2 10 grounding requirements 3 3 location concerns 2 3 mounting 2 10 options 2 2 PV array requirements 2 4 inverter features 1 3 purchase date WA 4 removing from wiring box 6 8 serial number WA 4 ISC Short circuit current rating of an PV panel under STC iv K knockout locations 2 6 2 7 L LCD liquid crystal display iv LED light emitting diode iv LEDs See status LEDs M maintenance general 6 4 maximum operating altitude A 13 maximum power point tracking See MPPT mechanical specifications A 14 messages See front panel display mounting bracket 2 8 2 9 MPPT maximum power point tracking iv operational window 2 4 technology 1 3 multiple inverters communication between 3 20 communications wiring 3 25 configuration 2 2 messages in normal operation 5 6 messages in offline mode 5 8 single phase AC and DC wiring 3 18 three phase AC and DC wiring 3 19 N NEC US National Electrical Code NFPA 70 iv NOTICE definition v Ix 2 O operation factors affecting performance 6 2 inverter startup 4 4 messages at startup 5 3 reassembling the unit 4 3 startup procedure 4 2 P parallel configuration communication between inverters 3 20 communications wiring 3 25 ports RJ 11 3 22 RJ 45 communication between inverters 3 22 RJ 45 location in wiring box 3 9 RS 232 3 26 5 9 power derating A 13 proof of purchase WA 4 purcha
20. If the initial assessment suggests that the defect is such that it may not be covered by this Limited Warranty billing information will be required If it is ultimately determined that the product is performing to the manufacturer s specifications and that no repair is required you will be billed for the service call at Xantrex s standard billing rates If a required repair is not covered under this Limited Warranty you will be responsible for all costs associated with such non covered repair including costs for replacement parts and labor at Xantrex s standard billing rates Xantrex will at its option use new and or reconditioned parts in performing warranty repair and building replacement products Xantrex reserves the right to use parts or products of original or improved design in the repair or replacement If Xantrex 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 return shipment to the customer whichever is greater All replaced products and all parts removed from repaired products become the property of Xantrex Xantrex covers both parts and labor necessary to repair the product and return shipment to the customer via a Xantrex selected non expedited surface freight within the contiguous United States and Canada Alaska Hawaii and outside of the United States and Canada are excluded Contact Xantrex Customer Service for details on freight policy for
21. have to disconnect wiring between the Conext Inverter and the wiring disconnect box Recommended tools Insulated screwdriver Wire nuts 7 mm socket and small ratchet or 7 mm open wrench 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Maintenance and Troubleshooting 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e Replacement of the Conext Inverter must be done only by qualified service personnel such as a certified electrician or technician using appropriate personal protective equipment and following safe electrical work practices The Conext Inverter is energized from two sources PV array while exposed to light and AC grid Before opening doors or covers consult the system diagram to identify all sources de energize lock out and tag out all sources After disconnecting both DC and AC power from the Conext Inverter wait five minutes before attempting troubleshooting or maintenance on any circuit connected to the Conext Inverter This will allow internal capacitors to discharge to a safe state Turn OFF the AC breaker in the main utility service panel and the DC AC disconnect switch on the Conext Inverter Isolate or disconnect all sources of electricity If the system does not provide a PV disconnect device cover the PV array with opaque dark material Otherwise leakage current from the ungrounded conductor to ground at the array can cause the grounded lead
22. hazardous voltages from paralleled PV strings will still be present upstream of the switch and inside the wiring box Isolate or disconnect all sources of electricity before making any connections make sure the DC AC disconnect switch is set to OFF see Figure 3 10 on page 3 11 and always test for voltage before touching exposed wiring or devices If the system does not provide a PV disconnect device cover the PV array with opaque dark material Before attempting any maintenance or cleaning or working on any circuits connected to the Conext Inverter consult the system diagram to identify all sources and then de energize lock out and tag out all sources Internal capacitors remain charged for five minutes after disconnecting all sources of power e Do not use a pressure washer to clean the Conext Inverter and do not use other cleaning methods that could allow water to enter the Conext Inverter Failure to follow these instructions will result in death or serious injury Follow these simple routines to ensure many years of service and optimal performance of your solar energy system Keep the heat sink clear of dust and debris e Clean the PV array during the cool part of the day whenever it is visibly dirty e Periodically inspect the system to make sure that all wiring and supports are securely in place e Maintain a log of system performance readings so that you can recognize when system performance becomes inconsis
23. is 208 V and line to neutral voltage is 120 V The resulting power for a three phase configuration is the sum of the output rated power of each Conext Inverter 975 0596 01 01 Revision A 3 19 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter CAUTION RISK OF EQUIPMENT DAMAGE Do not connect the Conext Inverter to the high leg of a 240 V center tap delta service mains Make AC connection only to the center tap 240 120 V side Failure to follow these instructions can result in equipment damage 2 09 L Ge Ng 208 V 208 120 V WYE 4 wire Figure 3 19 Three phase configuration 240 120 V Delta centre tap Table 3 2 Typical three phase system aggregation Power Configuration Models Used 7 95 kW 3 x Conext TX 2800 NA 9 3 kW 3 x Conext TX 3300 NA 13 5 kW 3x Conext TX 5000 NA 15 9 kW 6 x Conext TX 2800 NA 18 6 kW 6 x Conext TX 3300 NA 27 0 kW 6 x Conext TX 5000 NA Communications Wiring for Multiple Conext Grid Tie Solar Inverters 3 20 Communications wiring between multiple Conext Inverters allows information about each Conext Inverter and its associated PV array to be communicated between all of the Conext Inverters in the system Information about the entire system can be displayed on any Conext Inverter s LCD in the system 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Communications Wiring f
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26. 15 Insulating barrier with DC side cutout removed DC Wiring for Multiple Conext Grid Tie Solar Inverters For installations with multiple Conext Inverters separate solar arrays are required for each Conext Inverter The output of each Conext Inverter feeds a separate dual pole circuit breaker L1 and L2 in the main utility service panel For such installations complete the wiring and perform the commissioning procedure see Commissioning Multiple Conext Grid Tie Solar Inverters on page 4 4 for each Conext Inverter one at a time 975 0596 01 01 Revision A 3 15 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e In multiple inverter systems make sure each Conext Inverter is correctly connected to its own PV array s and that no wires are crossed For example connect PV1 positive and PV1 negative to Conext Inverter 1 and PV2 positive and PV2 negative to Conext Inverter 2 e Do not connect PV1 positive and PV2 negative to Conext Inverter 1 and PV2 positive and PV1 negative to Conext Inverter 2 As shown in Figure 3 16 on page 3 16 this configuration can cause short circuit failures in the Conext Inverters and could also generate hazardous voltages within the system Failure to follow these instructions will result in death or serious injury PV Array 1 PV1
27. 5 0596 01 01 Revision A This chapter is for use by qualified personnel only Startup Procedure Checking the AC Utility Voltage To check the AC utility voltage 1 Switch on the main and Conext Inverter breakers in the main electrical service panel 2 Using an AC voltmeter measure the AC open circuit utility voltage between L1 and L2 Make sure this voltage is at approximately the nominal value The Conext Inverter operates with a line to line voltage L1 to L2 range around the nominal value 3 Measure the phase to neutral voltage Phase to neutral voltage should be 120 VAC nominal for each phase to neutral measurement whether the grid is 120 240 V split phase or 208 V three phase WYE Phase to phase voltage might rise 3 to 4 VAC at the field wiring points depending upon grid impedance when current is flowing to a typical 240 V grid If the grid voltage is within 1 to 2 VAC of the high voltage disconnect threshold when the Conext Inverter is at full rated power output see Adjustable Voltage Frequency and Reconnection Settings on page A 12 the Conext Inverter might disconnect more frequently than it normally would If the grid is normally high the Conext Inverter might disconnect and then refuse to reconnect due to the required reconnect voltage of 106 per cent of nominal If this occurs consult the utility about reducing the utility voltage or to get permission to allow the installer to adjust the disconnect thres
28. 5 6 mm Shipping dimensions H x Wx D 46 x 22 3 4 x 10 1 4 in 1165 x 577 x 260 mm 42 x 22 3 4 x 10 1 4 inches 1070 x 577 x 260 mm Weight 85 8 Ib 38 9 kg 80 5 Ib 36 5 kg 71 0 Ib 32 2 kg 70 1 Ib 31 8 kg Shipping weight 114 9 Ib 52 1 kg 109 3 Ib 49 6 kg 96 0 Ib 43 5 kg 95 21 Ib 43 2 kg Input and output terminals AC and DC terminals accept wire sizes of 2 5 to 16 mm 14 to 6 AWG Disconnect switch Integrated switch disconnects both AC and DC meets NEC Article 690 rated 600 VDC VAC Including Conext Inverter and handle projection Regulatory Approvals A 14 The Conext Inverter meets the following safety operating standards and code requirements e UL 1741 2010 UL Standard for Inverters Converters Controllers and Interconnection System Equipment for Use with Distributed Energy Resources Includes IEEE 1547 and 1547 1 e CSA C22 2 No 107 1 General Use Power Supplies FCC Class B NOTICE The Conext Inverter is compliant with IEEE 1547 for those requirements referenced in UL 1741 2010 section 46 1 A utility interactive inverter and interconnection system equipment ISE shall comply with the Standard for Interconnecting Distributed Resources With Electric Power Systems IEEE 1547 and the Standard for Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems IEEE 1547 1 e
29. 5000 NA 2 2 eee ete Sepa ee A 2 Conext TA 3800 N Arms EEE HH eae a ale eee eRe te eae A4 Conext TX 3300 NA zer REES ne he te BEI A 7 Conext TX 2800 NA rere re reer rere nnnn A 9 Adjustable Voltage Frequency and Reconnection Settings A 12 975 0596 01 01 Revision A Contents Output Power Versus Ambient Temperature A 13 Environmental Specifications A 13 User Display Tanson 22 0 30 5 sea ee een een A 13 User Display Accuracy 5 rr errr rrr errr eennn A 14 Mechanical Specifications A 14 Regulatory Approvals 22 rrr rere reer reer eee A 14 Warranty and Return Information errr reer ee WA 1 975 0596 01 01 Revision A xiii xiv Introduction Chapter 1 contains information about the features and functions of the Conext Grid Tie Solar Inverter Introduction About the Conext Grid Tie Solar Inverter PV compatibility Utility grid compatibility The Conext Grid Tie Solar Inverter Conext Inverter is designed to convert solar electric photovoltaic or PV power into utility grade electricity that can be used by the home or sold to the local power company Installing the Conext Inverter consists of mounting it to the wall and conne
30. AND C ANY DAMAGE OR INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE OR THE INCORRECT INSTALLATION INTEGRATION OR OPERATION OF THE PRODUCT BY PERSONS NOT AUTHORIZED BY XANTREX Exclusions If this product is a consumer product federal law does not allow an exclusion of implied warranties To the extent you are entitled to implied warranties under federal law to the extent permitted by applicable law they are limited to the duration of this Limited Warranty Some states provinces and jurisdictions do not allow limitations or exclusions on implied warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential damages so the above limitation s or exclusion s may not apply to you This Limited Warranty gives you specific legal rights You may have other rights which may vary from state to state province to province or jurisdiction to jurisdiction Return Material Authorization Policy For those products that are not being repaired in the field and are being returned to Xantrex before returning a product directly to Xantrex 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 th
31. C Absolute maximum array open circuit voltage 600 VDC Maximum PV input current 15 5 ADC 240 VAC 14 9 ADC 208 VAC Maximum array short circuit current 24 ADC STC PV reverse polarity protection Shunt diode Array grounding Array negative is grounded internally via 1 A fuse PV ground fault protection GF detection when 1 A fuse clears 975 0596 01 01 Revision A A 9 This appendix is for use by qualified personnel only Specifications Output Nominal AC output voltage 240 VAC 208 VAC Maximum AC output power 2800 W 2650 W AC operating range utility voltage phase to phase 212 263 VAC 184 228 VAC AC operating range utility voltage phase to neutral 106 1 131 5 VAC AC nominal output frequency 60 Hz AC operating range utility frequency 59 3 60 5 Hz Startup current OA Maximum AC continuous output current 11 8A 13 0A Maximum output fault current 15A Maximum output overcurrent protection internal AC 15A fuse rating Maximum utility backfeed current OA Total harmonic distortion lt 5 Power factor gt 0 99 at rated power gt 0 95 full power range Utility monitoring AC voltage frequency and anti islanding protection Output characteristics Current source Output current waveform Sine wave Factory settings can be adjusted with the approval of the utility The Conext Inverter is provided with adjustable trip limits and can be aggregated above 30 k
32. Conext Grid Tie Solar Inverter Conext TX 2800 NA Conext TX 3300 NA Conext TX 3800 NA Conext TX 5000 NA Owners Manual Schneider www schneider electric com E ectric Conext Grid Tie Solar Inverter Owners Manual Schneider www schneider electric com Electric Trademarks Schneider Electric the Schneider Electric logo Conext Fast Sweep Xantrex and Xanbus are trademarks or registered trademarks of the Schneider Electric group of companies Other trademarks registered trademarks and product names are the property of their respective owners and are used herein for identification purposes only Notice of Copyright Copyright July 2011 Xantrex Technology Inc All rights reserved No part of this document may be reproduced in any form or disclosed to third parties without the express written consent of Xantrex Technology Inc 161 G South Vasco Road Livermore California USA 94551 Xantrex Technology Inc reserves the right to revise this document and to periodically make changes to the content hereof without obligation or organizat
33. Conext Inverter 1 Prepare the fuse holder a Strip Yin 12 13 mm from both ends of three 2 5 in 65 mm lengths of 10 AWG wire b Insert one end of each wire into each of the three top lugs of the fuse holder See Figure 3 13 c Torque screws to the value indicated by the manufacturer on the fuse holder to secure the wires Figure 3 13 Fuse holder with 10 AWG wiring 2 Insert the free ends of each of the three wires into the PV terminals marked UNGROUNDED See Figure 3 14 3 Snap the fuse holder to the provided DIN rail to secure it to the wiring box See Figure 3 14 I Am Figure 3 14 Fuse holder secured to wiring box 3 14 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Connecting the DC Wiring 4 Insert the POSITIVE wire from PV1 String 1 into one of the fuse holders Torque the screw to the value indicated by the manufacturer on the fuse holder to secure the wire 5 Insert the NEGATIVE wire from PV1 String 1 into one of the PV terminals marked GROUNDED Repeat for PV1 String 2 if applicable Repeat for PV1 String 8 if applicable 8 Make sure all connections are correctly wired and secured Torque wires in the fuse holder to the value indicated by the manufacturer 9 Remove the cutout on the DC side of the insulating barrier for fuse holder clearance See Figure 3 15 on page 3 15 Cutout removed for fuse holder clearance Figure 3
34. Conext Inverter is producing power run the disconnect test as described in this procedure To run the disconnect test 1 2 Switch off the AC breaker for the circuit connected to the Conext Inverter Have someone watch the front panel of the Conext Inverter to make sure the green light on the front of the Conext Inverter goes out within two seconds The green light goes out when the AC circuit is switched off disconnecting the Conext Inverter from the AC grid The front panel display will show an AC Fault display indicating that the AC is out of the operating range Switch on the AC circuit for the Conext Inverter The Conext Inverter responds by starting its 305 second protection timer Make sure the Conext Inverter does not produce power before the countdown is over After completing the countdown the green light turns on and the Conext Inverter begins delivering power The display returns to showing the power being produced and the total kWh produced to date NOTICE The default voltage frequency and reconnect delay values are programmed into the Conext Inverter at the time of shipment from the factory With the utility s approval these settings can be adjusted in the field using the GTConfigLite software tool See Adjustable Voltage Frequency and Reconnection Settings on page A 12 4 If you have another Conext Inverter to commission switch off the AC circuit for the Conext Inverter you have j
35. Inverter At night and when no power is being produced by the PV array offline mode the Conext Inverter displays the screen shown in Table 5 5 Table 5 5 Offline mode default display Display Desc ription Inverter Offline Displayed at all times while the system is offline Additional message screens can be viewed when the system is offline by tapping the Conext Inverter s front panel Each additional tap displays the next screen in the order shown in Table 5 6 These message screens are common to all Conext Inverter systems no matter how many Conext Inverters are installed If you continue to tap the Conext Inverter then the LCD will continue to cycle through all of the available offline mode screens Table 5 6 Offline mode screens for all Conext Inverters Tap Display Description 1st Inverter LCD backlight turns on for better readability Offline and default offline mode screen is displayed 2nd System 0W Power being produced by the system now and Today 2 50kWh cumulative energy produced by the system today 3rd System Lifetime Lifetime energy produced by the system 305kWh 4th Time Online Total time that the system was online today in hh mm ss hours hh minutes mm and seconds ss In a multiple inverter system with communications cables properly installed the System values displayed are for the entire system Time Online is for the local Conext Inverter 975 0596 01 01 Revision
36. Readings screen tap the Conext Inverter s front panel LCD four times 5 After the input current has risen above 1 A if the Conext Inverter is still operating normally switch off the Conext Inverter by turning the DC AC disconnect switch to the OFF position Proceed to step 5 If the Conext Inverter stops operating after the input current has risen above 1 A turn the Conext Inverter off remove DC power and inspect the ground fault protection fuse If the fuse has blown a DC wiring problem could exist Check all DC wiring to make sure the Conext Inverter is connected to a single PV array 6 Run the disconnect test see Disconnect Test on page 4 6 Proceed to the next Conext Inverter and perform the same test See Figure 4 2 for an example of the recommended commissioning sequence Figure 4 2 Commissioning sequence for multiple Conext Inverters 975 0596 01 01 Revision A 4 5 This chapter is for use by qualified personnel only Starting the Conext Grid Tie Solar Inverter Disconnect Test The disconnect test is designed to verify correct operation of the Conext Inverter both on initial operation and periodically through its life as required by the local utility This test makes sure the Conext Grid Tie Solar Inverter does not send electricity to the utility grid when the local utility has shut off the grid for repairs or when the utility wiring is damaged When operation of the Conext Inverter has been verified and the
37. They Mean 975 0596 01 01 Revision A Front Panel Display Screens and What They Mean Front Panel Display Screens and What They Mean Startup Mode NOTICE For the tables in this section all numbers are examples only Your model revision numbers and performance data will vary The front panel display shows different message screens during different modes of operation Startup Normal Offline and Fault All single Conext Inverters display a basic set of message screens Multiple Conext Inverter systems display additional screens in Normal Operation and Offline modes In addition special message screens might appear in any operational mode All these message screens are described in the following tables During startup the Conext Inverter displays several message screens on its front panel LCD These screens appear in the following order Table 5 1 Startup screens on Conext Inverter front panel display Display Duration Description Power 5000W 5 seconds Startup message 1 Maximum output power and NA 240 208V Region nominal output voltage Flash 03 09 5 seconds Startup message 2 Model and revision numbers ROM 03 00 for Flash and ROM memory on the Conext Inverter The ROM revision number applies to the protection processor Vh 266V 3 seconds Vh Phase to phase RMS high threshold voltage Clr t lt 1 00s setting The threshold at which the Conext Inverter disconnects itself from the power g
38. W on a single Point of Common Coupling See Adjustable Voltage Frequency and Reconnection Settings on page A 12 Efficiency Output Voltage 240 VAC 208 VAC Maximum peak efficiency 95 2 95 2 CEC efficiency 94 5 94 5 Nighttime tare loss 1 22 W 1 23 W A 10 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Electrical Specifications 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 i 1 1 1 1 4 1 lt J 1 1 1 4 1 1 1 J D a co co Adusm y Values in legend are VDC of Rated Output Power 7 Conext TX 2800 NA 240 VAC typical efficiency Figure A O oO uo oO co co Adusm y Values in legend are VDC Q 3 a 2 Q _ ko cc e PS Figure A 8 Conext TX 2800 NA 208 VAC typical efficiency A 11 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Specifications Adjustable Voltage Frequency and Reconnection Settings Utility disconnect settings can be adjusted using the GTConfigLite software tool Permission from the utility must be granted before adjusting any of these settings For more information about installing and using GTConfigLite see the GTConfigLite User s Guide Document Part Number 975 0260 01 01 available with the software
39. allation Chapter 2 Chapter 3 Chapter 4 and Chapter 6 are intended for qualified personnel who need to install the Conext Grid Tie Solar Inverter Qualified personnel have training knowledge and experience in e Installing electrical equipment and PV power systems up to 1000 V e Applying all applicable installation codes e Analyzing and reducing the hazards involved in performing electrical work e Selecting and using personal protective equipment Installation commissioning and maintenance of the Conext Inverter must be done only by qualified personnel 975 0596 01 01 Revision A iil About This Manual Organization Acronyms This manual is organized into six chapters and an appendix Chapter 1 contains information about the features and functions of the Conext Grid Tie Solar Inverter Chapter 2 provides instructions for installing the Conext Grid Tie Solar Inverter It contains information on determining a suitable location for installation PV array requirements and procedures for mounting the Conext Grid Tie Solar Inverter Chapter 3 provides information about DC and AC wiring as well as grounding the Conext Inverter and the PV array Chapter 4 provides instructions for starting the Conext Grid Tie Solar Inverter and performing a functional test Chapter 5 contains information about the LCD screens and the LED indicators Chapter 6 contains information on general maintenance of the Conext Grid Tie Solar Inv
40. antrex Authorized Service Center ASC A Xantrex return material authorization RMA number is not required However you must contact the ASC prior to returning the product or presenting the unit to verify any return procedures that may apply to that particular facility and that the ASC repairs this particular Xantrex product Out of Warranty Service If the warranty period for your product has expired if the unit was damaged by misuse or incorrect installation if other conditions of the warranty have not been met or if no dated proof of purchase is available your unit may be serviced or replaced for a flat fee To return your product for out of warranty service contact Xantrex Customer Service for a Return Material Authorization RMA number and follow the other steps outlined in Return Procedure Payment options such as credit card or money order will be explained by the Customer Service Representative In cases where the minimum flat fee does not apply as with incomplete units or units with excessive damage an additional fee will be charged If applicable you will be contacted by Customer Service once your unit has been received 975 0596 01 01 Revision A WA 3 This manual is for use by qualified personnel only Warranty and Return Information Information About Your System As soon as you open your Conext Grid Tie Solar Inverter package record the following information and be sure to keep your proof of purchase O Serial Num
41. as completed its countdown and during normal operation the Conext Inverter displays the following normal operation message screen Table 5 2 Normal operation default screen Display Description System 5000W Today 9 875kWh Power being produced by the system now and cumulative energy produced by the system today All numbers in this table and the following tables are examples only If sufficient energy from the PV array is provided the default screen is displayed continuously while the system is operating normally In a multiple inverter system with communications cables properly connected the power and cumulative energy values displayed are for the entire system During low light conditions when the Conext Inverter cannot produce any power the normal operation default screen flashes alternately every two seconds with the Insufficient Solar Energy screen see Table 5 10 on page 5 10 In addition to the default normal operation display additional system information messages can be viewed To view more normal operation information Tap the front panel to advance the display to the next screen Normal operation screens shown in Table 5 3 are displayed in the order given as you tap successively on the Conext Inverter They are common to all Conext Inverter systems no matter how many Conext Inverters are installed If you continue to tap the front panel the LCD continues to cycle through all of the available normal
42. ay can cause the grounded lead to become a shock hazard even with the DC AC disconnect switch turned OFF Use insulated fuse pullers or fuse holders Failure to follow these instructions will result in death or serious injury AWARNING HAZARD OF FIRE For continued protection against risk of fire replace only with same type and rating of fuse Use UL CSA listed fuses only Failure to follow these instructions can result in death or serious injury The ground fault protection fuse will blow when excessive leakage current occurs between the PV array and earth ground or when the system has been installed with deficient wiring Before replacing the fuse it is important to have qualified service personnel such as a certified electrician or technician determine the cause of the ground fault The Conext Inverter also has an AC overcurrent protection fuse see Figure 6 2 on page 6 7 that also must be replaced only by qualified service personnel To replace a ground fault protection fuse 1 Isolate or disconnect all sources of electricity turn the DC AC disconnect switch OFF and turn the AC breaker in the main utility service panel OFF If the system does not provide a PV disconnect device cover the PV array with opaque dark material 2 Remove the wiring disconnect box cover as described on page 3 8 975 0596 01 01 Revision A 6 5 This chapter is for use by qualified personnel only Maintenance and Troubleshooti
43. ber 71 Purchased From 71 Purchase Date If you need to contact Customer Service please record the following details before calling This information will help our representatives give you better service Type of installation Length of time inverter has been installed DC wiring size and length Description of indicators on front panel OOo 0 0 40 Description of problem PV Details Solar Panel Mount Roof Pole Solar Panel Brand and Model Nominal Voltage Range VDC Peak Open Circuit Voltage VDC Nominal Current Rating Adc Maximum Current Rating Adc Solar Tracker Yes No String 1 of Panels Series String 2 of Panels Series String 3 of Panels Series String 4 of Panels Series WA 4 Ground Parallel L Parallel Parallel Parallel 975 0596 01 01 Revision A This manual is for use by qualified personnel only Index A AC circuit breaker requirements 3 6 grounding requirements 3 3 output voltage ratings Conext TX 2800 NA A 10 output voltage ratings Conext TX 3300 NA A 7 output voltage ratings Conext TX 3800 NA A 5 output voltage ratings Conext TX 5000 NA A 2 terminals accessing 3 8 three phase wiring 3 19 utility voltage checking 4 3 wiring instructions 3 17 acceptable wire sizes A 14 accessing AC and DC terminals 3 8 acrony
44. box together form a Type 3R enclosure to allow outdoor installation In jurisdictions where the local utility requires that the AC disconnect be capable of being locked in the open position by its service personnel this disconnect switch can also serve as a lockable isolating device 975 0596 01 01 Revision A 15 Installation 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH The Conext Grid Tie Solar Inverter must be installed and serviced only by qualified personnel equipped with appropriate personal protective equipment and following safe electrical work practice and all applicable code requirements Failure to follow these instructions will result in death or serious injury Chapter 2 provides instructions for installing the Conext Grid Tie Solar Inverter It contains information on determining a suitable location for installation PV array requirements and procedures for mounting the Conext Grid Tie Solar Inverter The topics in this chapter are organized as follows e Installation Options on page 2 2 e Planning the Installation on page 2 2 e Mounting the Conext Grid Tie Solar Inverter on page 2 5 Installation Installation Options The Conext Inverter can be installed as a single inverter for a single PV array of one to three PV strings When two or more PV strings are connected the existing wiring disconnect box can serve as a fuse box but fuse holders and fuses must b
45. bus networks i e greater than 328 ft 100 m you must verify network integrity using a CANbus network analysis tool such as the Maretron N2KMeter NMEA2000 Diagnostic Tool See Verifying the Xanbus Network on page 3 26 The network terminator supplied with each Conext Inverter Figure 3 21 is required at each end of the network to ensure the communication signal quality on the network E gt Figure 3 21 Network terminator Two RJ 45 ports are provided in the Conext Inverter accessible from the wiring box See Figure 3 22 for the location of these ports The 4 position RJ 11 port connectors allow interconnection of multiple Conext Inverters for three phase connections where the requirement is balanced generating conditions Any Conext Inverter disconnecting from the grid also forces the remaining Conext Inverters offline This condition remains until grid parameters for all Conext Inverters are within operating specifications If a balanced system is required daisy chain the inverters via the RJ 11 ports using a 4 wire straight through telephone cord No terminators are required 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Communications Wiring for Multiple Conext Grid Tie Solar Inverters RJ 45 Xanbus ports RJ 11 ports Network terminator RS 232 port used to connect a PC to use Conext View Figure 3 22 Communication ports in the Conext Inverter wir
46. cting the DC input to a PV array and the AC output to the utility See Figure 1 1 fora simple diagram of a typical installation In order to operate the Conext Inverter must have grid power available and connected It will not provide backup power if the AC grid fails u SavePord LE le E Ginete L Figure 1 1 Basic system overview The Conext Inverter is designed to take advantage of solar modules configured as high voltage PV string arrays single crystalline poly crystalline or thin film with an input voltage Maximum Power Point range depending on the model of 195 to 550 VDC or 240 to 550 VDC See Electrical Specifications beginning on page A 2 for more information The Conext Inverter can operate on either 240 V or 208 V nominal grid voltage The Conext Inverter senses the phase to phase voltage and automatically changes the power limit value for each grid voltage The disconnect thresholds see Adjustable Voltage Frequency and Reconnection Settings on page A 12 remain the same because both nominal voltages have the same 120 VAC phase to neutral thresholds 975 0596 01 01 Revision A Maximum Power Point Tracking MPPT High efficiency Expandable Communications protocol Standard Features The Conext Inverter uses proprietary Maximum Power Point Tracking MPPT technology to harvest the maximum amount of energy from the solar array MPPT learns your array
47. d personnel equipped with appropriate personal protective equipment and following safe electrical work practices Energized from two sources PV array when exposed to light and AC grid Before opening doors or covers consult system diagram to identify all sources de energize lock out and tag out all sources and wait at least five minutes for internal capacitors to discharge to safe voltages Before servicing test using a meter rated at least 1000 volts AC and DC to make sure all circuits are de energized Failure to follow these instructions will result in death or serious injury The wiring disconnect box is standard on all North American models of the Conext Inverter The wiring disconnect box provides a location for making AC DC and ground connections It also contains the DC AC PV array utility disconnect switch When used in conjunction with the Conext Inverter the DC AC disconnect switch is suitable for disconnecting both AC and DC input voltages up to 600 V The switch is lockable and meets the requirements of NEC Section 690 as a means of disconnect subject to acceptance by your local AHJ The wiring disconnect box has been designed to be physically mated to the electronics section of the Conext Inverter at the factory but it remains in place as a non serviceable item in the event that the Conext Inverter electronics section must be removed The electronics section of the Conext Inverter and wiring disconnect
48. derate injury CAUTION CAUTION without the exclamation symbol indicates a potentially hazardous situation which if not avoided can result in equipment damage NOTICE NOTICE indicates important information that you need to read carefully 975 0596 01 01 Revision A v About This Manual Symbols Used Ground In this manual Danger Warning or Caution On the product Danger Warning or Caution with further explanation in the manual On the product Warning risk of electric shock On the product Warning hot surface risk of burns On the product Danger hazard of electric shock explosion fire or arc flash YER Related Information vi You can find more information about Schneider Electric as well as its products and services at www schneider electric com 975 0596 01 01 Revision A Important Safety Instructions SAVE THESE INSTRUCTIONS This manual contains important safety and operating instructions that must be followed during the installation operation and maintenance of the Conext Grid Tie Solar Inverter Read and keep this manual for future reference A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e The Conext Grid Tie Solar Inverter has no user serviceable parts inside It must be installed and serviced only by qualified personnel equipped with appropriate personal protective equipment and following safe electrical work practic
49. described in Table 5 1 Startup screens on Conext Inverter front panel display on page 5 3 When the 305 second protection timer begins the Conext Inverter displays Reconnecting in sss seconds see Table 5 10 Special message screens on page 5 10 When the protection timer stops the Conext Inverter begins delivering power indicated by the power output reading in the display see Table 5 2 Normal operation default screen on page 5 5 When the Conext Inverter is offline at night for example or a fault condition has been detected the LCD displays a message to indicate that the Conext Inverter is offline and to identify the specific fault condition See Table 5 5 Offline mode default display on page 5 7 and Table 5 8 Fault message screens on page 5 8 NOTICE If both DC and AC power supplies are either not present or too low then the front panel LCD will be blank Tap the front panel for backlight and status screens Figure 5 1 Front panel LCD Additional information screens about the performance of the Conext Inverter can be displayed by tapping the Conext Inverter s front panel This causes the LCD to cycle through a series of information screens in normal operation offline or fault modes These are described in detail in the following section Front Panel Display Screens and What
50. disconnect switch positions 975 0596 01 01 Revision A 3 11 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter NOTICE If you are connecting the DC wiring using an optional fuse holder see Connecting the DC Wiring Using the Optional Fuse Holder on page 3 13 The following procedure is illustrated in Figure 3 11 on page 3 12 If the system has more than one PV string label the positive and negative wire pairs appropriately for example PV1 String 1 POS PV1 String 1 NEG PV1 String 2 POS and so on See Cage Clamps on page 3 10 for instructions on using Cage Clamps To wire the PV array to the Conext Inverter 1 Insert the POSITIVE wire from PV1 String 1 into one of the PV terminals marked UNGROUNDED 2 Insert the NEGATIVE wire from PV1 String 1 into one of the PV terminals marked GROUNDED 3 Repeat for PV1 String 2 if applicable Repeat for PV1 String 3 if applicable 5 Make sure all connections are correctly wired and secured P PV1 String e oo OFF SEO o Je E SFO o o Oo W oO 1 2 LOL SORAA bee Grounding not shown
51. distortion lt 5 Power factor gt 0 99 at rated power gt 0 95 full power range Utility monitoring AC voltage frequency and anti islanding protection Output characteristics Current source Output current waveform Sine wave Factory settings can be adjusted with the approval of the utility The Conext Inverter is provided with adjustable trip limits and can be aggregated above 30 kW on a single Point of Common Coupling See Adjustable Voltage Frequency and Reconnection Settings on page A 12 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Specifications Efficiency Output Voltage 240 VAC 208 VAC Maximum peak efficiency 95 6 95 3 CEC efficiency 95 0 94 5 Nighttime tare loss 1 22 W 0 96 W 95 90 35 a N 2 E Ld 80 75 70 0 10 20 30 40 50 60 70 60 90 100 of Rated Output Power Values in legend are VDC Figure A 5 Conext TX 3300 NA 240 VAC typical efficiency A 8 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Electrical Specifications DS s 2 b w 0 10 20 30 40 50 60 70 50 90 100 of Rated Output Power Values in legend are VDC Figure A 6 Conext TX 3300 NA 208 VAC typical efficiency Conext TX 2800 NA Input Model number 878 2801 PV input voltage Maximum Power Point range Certified operating range 195 550 VD
52. e cables should run on top of the insulation barrier inside the wiring disconnect box and out a side conduit hole avoiding any contact with the AC and DC wiring Failure to follow these instructions will result in death or serious injury 3 24 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Communications Wiring for Multiple Conext Grid Tie Solar Inverters AWARNING HAZARD OF UNPREDICTABLE DEVICE BEHAVIOR Unpredictable device behavior might result from connecting one end of the network to the other to make a ring or loop Failure to follow these instructions can result in unintended operation that can result in death serious injury or equipment damage Connecting Network Cable Between Multiple Conext Grid Tie Solar Inverters The following procedure illustrated in Figure 3 20 on page 3 21 assumes only two Conext Inverters are connected However up to five Conext Inverters can be connected in this configuration 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Before opening the Conext Inverter wiring disconnect box turn OFF the breaker switches connected to the Conext Inverter AC output and turn the DC AC disconnect switch to the OFF position Hazardous voltage will still be present on the DC input PV terminals located under the clear plastic insulation barrier Do not remove the insulation barrier during this procedure To reduce the risk
53. e purchased and installed See Combiner Fuses Optional on page 3 6 for details The Conext Inverter can also be installed in a multiple inverter system If multiple Conext Inverters are used each Conext Inverter must be wired to an independent PV array Enable communication between Conext Inverters by installing network cabling to the Conext Inverter s RJ 45 ports See Connecting Network Cable Between Multiple Conext Grid Tie Solar Inverters on page 3 25 Planning the Installation Make sure you have obtained all permits required by local authorities or utilities before beginning installation Installation Codes Governing installation codes vary depending on the specific location and application of the installation Some examples include the following e The U S National Electrical Code NEC e The Canadian Electrical Code CEC e The U S Code of Federal Regulations CFRs e Canadian Standards Association CSA It is the installer s responsibility to make sure that all applicable installation requirements are met Conext Grid Tie Solar Inverter Location A CAUTION HAZARD OF BURN e In extreme conditions the Conext Inverter heat sink can reach temperatures over 158 F 70 C and can cause skin burns if accidentally touched e Make sure the Conext Inverter is located away from normal traffic areas Failure to follow these instructions can result in minor or moderate injury 2 2 975 0596 01
54. e terminal downward until the spring cage opens See Figure 3 8 Figure 3 7 Releasing the Cage Clamp step 1 a Figure 3 8 Releasing the Cage Clamp step 1 b 3 10 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Connecting the DC Wiring 2 Insert the wire and then remove the screwdriver to engage the Cage Clamp See Figure 3 9 Figure 3 9 Inserting the wire and engaging the Cage Clamp Connecting the DC Wiring 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e Use caution when working around sources of DC power Although the DC AC disconnect switch disconnects the Conext Inverter from DC power hazardous voltages from paralleled PV strings will still be present upstream of the switch and inside the wiring box Isolate or disconnect all sources of electricity before making any connections make sure the DC AC disconnect switch is set to OFF see Figure 3 10 and always test for voltage before touching exposed wiring or devices If the system does not provide a PV disconnect device cover the PV array with opaque dark material If AC wiring has been connected previously turn off lock out and tag out the AC breaker in the main utility panel prior to connecting the DC wiring Failure to follow these instructions will result in death or serious injury 6 0 6 ON OFF Figure 3 10 DC AC
55. e wrong location WA 2 975 0596 01 01 Revision A This manual is for use by qualified personnel only Warranty and Return Information When you contact Xantrex to obtain service please have your instruction manual ready for reference and be prepared to supply The serial number of your product Information about the installation and use of the unit Information about the failure and or reason for the return A copy of your dated proof of purchase Record these details in Information About Your System Return Procedure 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 Include the following The RMA number supplied by Xantrex Technology Inc clearly marked on the outside of the box e Areturn address where the unit can be shipped Post office boxes are not acceptable A contact telephone number where you can be reached during work hours e Abrief description of the problem Ship the unit prepaid to the address provided by your Xantrex customer service representative If you are returning a product from outside ofthe 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 If you are returning a product to a X
56. ears When DC Voltage Fault The actual DC voltage is over or under the allowable 145 5V range Self clearing no action required The PV array should be configured such that DC voltage falls within the input voltage maximum power point range as specified for your model in Electrical Specifications in Appendix A AC Voltage Fault The actual AC voltage is over or under the allowable range 280V as specified in Electrical Specifications in Appendix A This is a utility fault It will clear itself when the AC voltage comes within the specified range t If the fault does not clear a phase to neutral line might not be connected properly 975 0596 01 01 Revision A Front Panel Display Screens and What They Mean Table 5 8 Fault message screens Display Appears When AC Current Fault The AC output current is over the allowable limit 0 5 A less than the maximum output fault current See Electrical Specifications in Appendix A The message clears after 15 seconds if the output current falls below the limit Frequency Fault 47 0Hz The actual frequency is over or under the allowable range as specified in Electrical Specifications in Appendix A This is a utility fault It will clear itself when the frequency comes within the specified range T Over Temp Fault 90 4C 194 7F The Conext Inverter s internal temperature is greater than 88 C 190 F The Conext Inverter will sh
57. ebs can accumulate on the Conext Inverter interfering with wiring connections and ventilation Do not install in a location where debris can accumulate for example under a tree 975 0596 01 01 Revision A 2 3 This chapter is for use by qualified personnel only Installation MPPT Requirements MPPT operational window The MPPT software maximizes the output energy of solar arrays as long as the operating voltage is within the MPPT operational window of the Conext Inverter Make sure the open circuit voltage VOC of the PV array is within the MPPT operational window See Input voltage Maximum Power Point range in Appendix A Specifications for the MPPT operational window of each Conext Inverter model Effects of array voltages outside of the MPPT operational window are shown in Table 2 1 Table 2 1 MPPT operational window Voltage Effect of Array Voltage Conext Inverter Mode VOC lt Lower limit of MPPT range Conext Inverter not operating Offline VMPP lt Lower limit of MPPT range Operating voltage shifts to lower limit of Online low power VOC gt Lower limit of MPPT range MPPT range the array is not at its maximum power point VMPP within MPPT range Maximum harvest of solar energy Online MPPT window VMPP between upper limit of MPPT Does not allow maximum harvest of Online power range and absolute maximum VOC solar energy derating VMPP gt absolute maximum VOC Conext In
58. ed improperly installed physically damaged or altered either internally or externally or damaged from improper use or use in an unsuitable environment including any environment or location that causes excessive wear and tear or debris buildup within the system or that is difficult or unsafe for Xantrex representatives to access b the product if it has been subjected to fire water generalized corrosion biological infestations or input voltage that creates operating conditions beyond the maximum or minimum limits listed in the Xantrex product specifications including but not limited to high input voltage from generators and lightning strikes c the product if repairs have been performed on it other than by Xantrex or its authorized service centers unless such repairs and service providers were authorized by the Xantrex Field Service Manager or Technical Support Representative prior to the performance of such repairs d the product if it is used as a component part of a product expressly warranted by another manufacturer e component parts or monitoring systems supplied by you or purchased by Xantrex at your direction for incorporation into the product f the dern if its original identification trade mark serial number markings have been defaced altered or removed g the product if it is located outside of the country where it was purchased and h any consequential losses that are attributable to the product losing power whether by
59. el only Starting the Conext Grid Tie Solar Inverter 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e The Conext Grid Tie Solar Inverter has no user serviceable parts inside It must be installed and serviced only by qualified personnel equipped with appropriate personal protective equipment and following safe electrical work practices The Conext Inverter is energized from two sources PV array while exposed to light and AC grid Before opening doors or covers consult the system diagram to identify all sources de energize lock out and tag out all sources and wait at least five minutes for internal capacitors to discharge to safe voltages Before servicing test using a meter rated at least 1000 volts AC and DC to make sure all circuits are de energized The Conext Inverter is provided with integral PV ground fault protection Normally GROUNDED conductors might be UNGROUNDED and ENERGIZED when a GROUND FAULT is indicated Disconnect all sources of power before opening The Conext Inverter employs field adjustable voltage and frequency set points and time delays that are factory set in compliance with local utility and safety requirements and can be changed only by trained technicians with approval by both the local utility and equipment owner Failure to follow these instructions will result in death or serious injury Starting the Conext Grid Tie Solar Inverter Chapter 4 provides inst
60. endations as described on page 2 10 Do not install the Conext Inverter in a zero clearance or unventilated compartment Failure to follow these instructions can result in death or serious injury viii 975 0596 01 01 Revision A Safety Safety and Data Labels The figure below shows the location of the external safety labels and the data label with model serial number and part number information Data Label gt a Safety Labels 975 0596 01 01 Revision A ix Safety Safety Equipment Authorized service personnel must be equipped with appropriate personal protective equipment including the following e Safety glasses Ear protection e Composite toed safety boots e Safety hard hats e Padlocks and tags e Double insulated tools e Appropriate meter to verify that the circuits are de energized 1000 volts AC and DC rated minimum Check local safety regulations for other requirements FCC Information for the User This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions could cause harmful interference to radio c
61. erter It also provides information about troubleshooting the Conext Inverter Appendix A contains specifications for the Conext Grid Tie Solar Inverter AHJ Authority Having Jurisdiction CEC Canadian Electric Code CFRs The U S Code of Federal Regulations CSA Canadian Standards Association FCC Federal Communications Commission GT Grid Tie Isc Short circuit current rating of an PV panel under STC LCD Liquid Crystal Display LED Light Emitting Diode MPPT Maximum Power Point Tracking NEC US National Electrical Code NFPA 70 PV Photovoltaic RMS Root Mean Square STC Standard Test Conditions specific to photovoltaic panels 1000 W m light spectrum AM 1 5 and 25 C panel nameplate ratings are based on STC and can be exceeded under other conditions UL Underwriters Laboratories VAC Volts AC VDC Volts DC VMPP Maximum Power Point Voltage VOC PV Array Open Circuit Voltage 975 0596 01 01 Revision A About This Manual Conventions Used The following conventions are used in this manual 4 DANGER DANGER indicates an imminently hazardous situation which if not avoided will result in death or serious injury AWARNING WARNING indicates a potentially hazardous situation which if not avoided can result in death or serious injury A CAUTION CAUTION indicates a potentially hazardous condition which if not avoided can result in minor or mo
62. es e The Conext Inverter is energized from two sources PV array while exposed to light and AC grid Before opening doors or covers consult the system diagram to identify all sources de energize lock out and tag out all sources and wait at least five minutes for internal capacitors to discharge to safe voltages Before servicing test using a meter rated at least 1000 volts AC and DC to make sure all circuits are de energized e The Conext Inverter is provided with integral PV ground fault protection Normally GROUNDED conductors might be UNGROUNDED and ENERGIZED when a GROUND FAULT is indicated Disconnect all sources of power before opening The Conext Inverter employs field adjustable voltage and frequency set points and time delays that are factory set in compliance with local utility and safety requirements and can be changed only by trained technicians with approval by both the local utility and equipment owner Do not use the Conext Inverter in connection with life support systems medical equipment or where human life or medical property could be at stake Before installing and using the Conext Inverter read all instructions and cautionary markings on the Conext Inverter wiring box and all appropriate sections of this manual To reduce shock fire and energy hazards installation must be in accordance with all applicable local installation codes It is the installer s responsibility to ensure adherence
63. for the Conext Inverter are shown in Figure 2 1 and Figure 2 2 Dual knockouts are provided on the back and bottom of the Conext Inverter to accommodate wiring and four knockouts are provided on the back of the wiring disconnect box Six conduit holes on the sides of the wiring disconnect box three on each side are filled with plastic plugs thread size PG 21 These plugs can be removed to insert conduit nipples as required for multiple inverter systems however they must remain in place if not being populated with a conduit connection Side conduit holes must be used to accommodate network communication cables connected between multiple Conext Inverter 975 0596 01 01 Revision A 2 5 This chapter is for use by qualified personnel only Installation 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Do not drill cut or punch holes in the wiring disconnect box Use only the knockouts provided for conduit entry Failure to follow these instructions will result in death or serious injury 38 91 in 22 mm 7 8 in knockouts 4 places on back Dual 35 mm or 27 mm P Far 2 B 1 3 8 or 1 in knockouts Dual 35 mm or 27 mm 5 Q 2 places on bottom 1 3 8 or 1 in knockouts l 2 places on back 40 2 mm Y 40 2 mm 3 in 1 58 in Figure 2 1 Conext Inverter dimensions and knockout locations Conext TX 5000 NA and 3800 NA
64. gh risk areas e No mounting hardware is supplied with the Conext Inverter The manufacturer recommends using 1 4 inch 6 mm diameter fasteners However because mounting surfaces vary installers must select appropriate hardware for each installation 2 10 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Mounting the Conext Grid Tie Solar Inverter Mounting the Conext Grid Tie Solar Inverter on the Bracket Place the Conext Inverter s mounting hooks over the flanges on the bracket Make sure the Conext Inverter is seated properly and then secure the bottom of the Conext Inverter with appropriate screws or anchors through the mounting slots u Ka aasi 2 c Flange ae mounting slots Figure 2 5 Placing the Conext Inverter on the mounting bracket 975 0596 01 01 Revision A This chapter is for use by qualified personnel only 2 12 Wiring the Conext Grid Tie Solar Inverter 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e The Conext Grid Tie Solar Inverter has no user serviceable parts inside It must be installed and serviced only by qualified personnel equipped with appropriate personal protective equipment and following safe electrical work practices The Conext Inverter is energized from two sources PV array while exposed to light and AC grid Before
65. hneider electric com Espana 34 902 101 813 34 933 055 026 es sat es schneider electric com L Italia 39 035 4151111 39 035415 3200 IT pronto contatto it schneider electric com For other country details please contact your local Schneider Electric Sales Representative or visit the Schneider Electric Web site at http www schneider electric com sites corporate en support operations local operations local operations page About This Manual Scope Audience The purpose of this Owner s Manual is to provide explanations and procedures for installing operating maintaining and troubleshooting the Schneider Electric Conext Grid Tie Solar Inverter Conext Inverter The manual provides safety guidelines as well as detailed planning and setup information It provides procedures for installing operating and troubleshooting the Conext Inverter It does not provide details about particular brands of photovoltaic PV panels Consult individual PV manufacturers for that information Chapter 1 and Chapter 5 are intended for anyone who needs to operate the Conext Grid Tie Solar Inverter Operators must be familiar with all the safety regulations pertaining to operating high voltage equipment as dictated by local code Operators must also have a complete understanding of this equipment s features and functions Do not use this product unless it has been installed by qualified personnel in accordance with the instructions in Chapter 2 Inst
66. hold to gain additional margin See Electrical Specifications Output in Appendix A Specifications for the utility voltage operating range of your Conext Inverter model Replacing the Wiring Disconnect Box Cover After performing the voltage checks turn OFF the breaker in the main utility service panel and the DC AC disconnect switch on the Conext Inverter and then replace all covers that were removed during installation and startup To replace the wiring disconnect box cover 1 Make sure the clear plastic insulating barrier is properly positioned in the wiring box 2 Slide the cover into position on the wiring box being careful not to pinch any wires inside Make sure the DC AC disconnect switch is set to OFF see Figure 3 10 on page 3 11 3 Make sure the two screw holes in the bottom of the wiring box cover are aligned with the corresponding screws in the bottom of the wiring box 4 Securely tighten the two screws that were loosened when the cover was removed see Accessing the Wiring Terminals on page 3 8 975 0596 01 01 Revision A 4 3 This chapter is for use by qualified personnel only Starting the Conext Grid Tie Solar Inverter Starting the Conext Inverter To start the Conext Inverter Turn the AC breaker ON Switch the DC AC disconnect switch to the ON position see Figure 4 1 Check the Conext Inverters LCD The startup screens see Table 5 1 on page 5 3 should appear for five sec
67. ified personnel only Replacing Parts 7 Inside the Conext Inverter remove the four nuts attaching the wiring box to the Conext Inverter See Figure 6 3 8 Lift the Conext Inverter off the mounting bracket leaving the wiring box in place 9 Make sure the gasket on the wiring disconnect box is clean and undamaged The gasket must create a water tight seal between the Conext Inverter and the wiring disconnect box 10 If the replacement Conext Inverter is not immediately available make sure the wiring box is protected from the weather Four nuts to secure Conext Inverter las gt Gasket Figure 6 3 Wiring disconnect box and removable Conext Inverter 975 0596 01 01 Revision A 6 9 This chapter is for use by qualified personnel only Maintenance and Troubleshooting Back view Top mounting hook goes over wall mounted bracket Lower flange goes behind wiring disconnect box Wiring disconnectbox permanently mounted to bracket Figure 6 4 Conext Inverter and wiring disconnect box sections To replace the Conext Inverter o
68. ing box Cabling Requirements CAUTION RISK OF EQUIPMENT DAMAGE Do not use a crossover cable in a Xanbus system Failure to follow these instructions can result in equipment damage The network uses Category 5 CAT5 or CAT5e cable a standard cable available from any computer supply store The cable consists of eight conductors in four twisted pairs with an RJ 45 modular connector wired to the T568A standard Table 3 4 shows the arrangements of wire colors to pin numbers for the T568A standard 975 0596 01 01 Revision A 3 23 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Table 3 4 T568A standard wiring Pin Conductor CAT5 Cable CAT5e Cable Number Name Insulation Color Insulation Color 1 NET_S White Green White Orange 2 NET_S Green Orange 3 NET_C White Orange White Green 4 CAN_L Blue Blue 5 CAN_H White Blue White Blue 6 NET_C Orange Green 7 NET_S White Brown White Brown 8 NET_C Brown Brown Pins 87654321 Figure 3 23 RJ 45 connector Network Components Consult your system designer to determine what network components you need for your specific installation and then purchase standard CAT5 cables locally Guidelines for Routing the Network Cables 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e Do not route the network cables in the same conduit or panel as the AC and DC power cabling Th
69. ing box are intended for routing the ground conductors to the ground bar See Figure 3 1 Knock outs for ground conductors DC Compartment AC compartment Figure 3 1 Ground conductor knockouts The ground bar accepts wires up to 4 AWG Use wire size 12 to 4 AWG copper conductors only rated 90 C minimum Torque ground wires as specified in Table 3 1 975 0596 01 01 Revision A 3 3 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Table 3 1 Torque values for ground wiring Wire Size Torque Value AWG mm in Ib Nm 12 10 4 0 6 0 25 35 3 0 4 0 8 10 30 40 3 444 5 64 16 25 3545 4 0 5 0 AWARNING HAZARD OF FIRE In most models the negative PV conductor is internally bonded to the ground system within the Conext Inverter s ground fault detection circuit e Itis important that the grounded PV conductor is not bonded to the ground at any other point in the system Failure to follow these instructions can result in death or serious injury PV1 String 1 PV1 String 2 r N Conext TX 5000 NA model shown Grounding electrode Figure 3 2 Grounding diagram 34 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Wiring Requirements NOTICE A DC grounding elec
70. ing shows the maximum continuous output power derating to be expected at higher ambient temperatures Output Power versus Ambient Temperature Vin 550 VDC Vout 240 208 VAC 5kW 240Vac B 5kW 208Vac 8kW 240Vac 8kW 208Vac 3kW 240Vac 3kW 208Vac m z e a x 8kW 240Vac 8kW 208Vac 40 Temperature C Figure A 9 Output power versus ambient temperature Environmental Specifications Operating and storage 13 to 149 F 25 to 65 C temperature range Power derating See Figure A 9 on page A 13 Tolerable relative humidity limit Operating lt 95 non condensing Storage 100 condensing Maximum operating altitude 6561 feet 2000 m User Display Type Alphanumeric liquid crystal display with backlight Size 2 lines by 16 characters 975 0596 01 01 Revision A A 13 This appendix is for use by qualified personnel only Specifications User Display Accuracy Instantaneous Power 30 W 1 of reading Voltage 1 of rating 1 of reading Current 1 of rating 1 of reading System Lifetime Energy 5 Mechanical Specifications Conext TX 5000 NA Conext TX 3800 NA Conext TX 3300 NA Conext TX 2800 NA Outdoor enclosure Type 3R rainproof Dimensions H x Wx D 38 7 8 x 15 7 8 x 7 5 16 in 988 x 403 5 x 185 6 mm 35 x 16 7 8 x 7 5 16 n 893 x 403 5 x 18
71. ion of such revisions or changes unless required to do so by prior arrangement Exclusion for Documentation UNLESS SPECIFICALLY AGREED TO IN WRITING XANTREX TECHNOLOGY INC XANTREX A MAKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION 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 USER S RISK AND C REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION THE ACCURACY CANNOT BE GUARANTEED APPROVED XANTREX CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION WHICH IS POSTED AT WWW SCHNEIDER ELECTRIC COM Date and Revision July 2011 Revision A Part Number 975 0596 01 01 Product Part Numbers 878 2801 Conext TX 2800 NA 878 3301 Conext TX 3300 NA 878 3801 Conext TX 3800 NA 878 5001 Conext TX 5000 NA Contact Information www schneider electric com 4 T s Ded North America 1 650 351 8237 1 925 245 1022 re techsupport schneider electric com 1 866 519 1470 France 33 0 825 012 999 fr re techsupport fr schneider electric com Deutschland 49 0 180 575 3 575 49 0 2102 404 7101 pv service de sc
72. isconnect settings 54 A 12 V VAC volts AC iv VDC volts DC iv VMPP maximum power point voltage iv VOC PV array open circuit voltage iv WwW WARNING definition v weight A 14 wiring acceptable wire sizes A 14 PV array to Xantrex GT Inverter 3 12 3 14 torquing 3 3 3 15 using Cage Clamps 3 10 975 0596 01 01 Revision A This manual is for use by qualified personnel only Index IX 3 IX 4 Schneider Electric www schneider electric com amp Foy B bed North America 1 650 351 8237 1 866 519 1470 1 925 245 1022 re techsupport schneider electric com France 33 0 825 012 999 fr re techsupport fr schneider electric com Deutschland 49 0 180 575 3 575 49 0 2102 404 7101 pv service de schneider electric com Espana 34 902 101 813 34 933 055 026 es sat es schneider electric com L Italia 39 035 4151111 39 035415 3200 IT pronto contatto it schneider electric com For other country details please contact your local Schneider Electric Sales Representative or visit the Schneider Electric Web site at http www schneider electric com sites corporate en support operations local operations local operations page 975 0596 01 01 Revision A Printed in India
73. lified personnel only Maintenance and Troubleshooting Table 6 1 is intended to assist in determining fault conditions that might require action to remedy Table 6 1 Troubleshooting the Conext Inverter Problem Possible Cause Solution The Conext Inverters LED indicators and display are blank and the Conext Inverter does not operate in sufficient sunlight DC AC disconnect switch is OFF Turn on DC AC disconnect switch and breakers in the sequence described in Startup Procedure on page 4 2 The display reads Inverter Offline and AC Voltage Fault Utility service panel breakers are switched off AC grid voltage is not present or incorrect Turn on utility panel breakers Check AC connections at the Conext Inverter s terminals Make sure AC voltage within the range specified in Output in Appendix A is present The display reads Inverter Offline with sufficient sunlight DC breakers are switched off if installed or external DC fuses are blown if installed DC array voltage is not present Turn on any DC breakers and check any DC fuses Check DC connections at the Conext Inverter s positive and negative DC terminals Check for incorrectly wired PV arrays The display reads Inverter Offline and DC Voltage Fault with sufficient sunlight DC voltage is present but incorrect Check DC connections at the Conext Inverter s positive and negative DC terminal
74. m clearances specified on page 2 10 The Conext Inverter must be mounted vertically on a wall or pole Do not mount the Conext Inverter horizontally If mounting the Conext Inverter indoors on a south facing wall make sure the wall is insulated to reduce the amount of heat absorbed by the Conext Inverter Unless walls are properly insulated avoid mounting the Conext Inverter indoors on any wall that is directly exposed to the sun Make sure the Conext Inverter is mounted in a location where the ambient temperature range is 13 to 149 F 25 to 65 C Above 104 F 40 C the Conext Inverter might derate power output See Output power versus ambient temperature on page A 13 and Environmental Specifications on page A 13 At extremely cold temperatures outside of the specified operating range the front panel LCD might not function normally For example the display could update very slowly or not update at all it could be illegible or it could go blank To minimize resistance and resulting power loss make sure the wire lengths between the PV array and the Conext Inverter and between the Conext Inverter and the main utility service panel are kept to a minimum Maximum distances will depend on the wire gauges used and PV array output voltages To minimize system failures due to AC voltage faults size the AC and DC wiring to have a maximum 1 to 1 5 voltage drop Excessive debris such as dust leaves and cobw
75. m message screens additional screens specific to for multiple inverter each Conext Inverter can be displayed when it is networked to other Conext systems Inverters These screens are only available on multiple inverter systems To view single inverter specific screens in a multiple inverter system 1 Tap the Conext Inverter s front panel to advance the display to the next screen Continue tapping until the final system message screen Grid Readings in Table 5 3 above is displayed Tap again Normal operation screens shown in Table 5 4 are displayed in the order given as you tap successively on the Conext Inverter If you continue to tap the Conext Inverter the LCD will cycle through all of the available normal operation screens Each message is displayed for up to 30 seconds If you do not tap again within that time period then the LCD backlight turns off and the display reverts to the default normal operation screen Table 5 2 5 6 975 0596 01 01 Revision A Offline Mode Offline default display Offline messages for all systems Front Panel Display Screens and What They Mean Table 5 4 Additional normal operation screens for each Conext Inverter in a multiple inverter system Tap Display Description 7th Unit 5000W Power being produced by this Conext Inverter Today 1 250kWh now and cumulative energy produced by this Conext Inverter today 8th Unit Lifetime Lifetime energy produced by this Conext 150kWh
76. ms iv adjusting utility disconnect settings A 12 AHJ Authority Having Jurisdiction iv altitude maximum for operation A 13 C Cage Clamps 3 10 CAUTION definition v CEC Canadian Electric Code iv CFRs The U S Code of Federal Regulations iv chart derating A 13 checking AC utility voltage 4 3 PV array DC voltage 4 2 clearance required for installation 2 10 combiner fuses 3 6 communication between multiple inverters 3 20 communications cabling installing for inverters in parallel 3 25 standard CAT 5 wiring 3 24 Conext View 3 26 5 11 CSA Canadian Standards Association iv D DANGER definition v DC PV voltage checking 4 2 terminals accessing 3 8 three phase wiring 3 19 wiring instructions 3 12 975 0596 01 01 Revision A derating chart A 13 dimensions 2 6 2 7 A 14 display accuracy A 14 E electrical specifications A 2 enclosure type A 14 error messages and solutions 6 12 F Fast Sweep 3 28 fault conditions and solutions 6 12 FCC Federal Communications Commission iv x features standard 1 3 front panel display 1 3 5 2 fault messages 5 8 normal operation messages 5 5 offline mode messages 5 7 reading messages 5 3 special messages 5 10 startup messages 5 3 fuses combiner 3 6 holder 3 6 location of ground fault protection 6 7 G general maintenance 64 ground fault protection fuse 3 5 location of fuse 6 7 replacing fuse 6 5 grounding requirements 3 3 GT grid tie iv H humidity limits A 13
77. n the wiring box 1 6 10 If it has not already been removed remove the wiring disconnect box cover see Figure 3 4 on page 3 8 Disconnect the PV power by re covering the PV arrays and or turning off any external switches If it has not already been removed remove the display front panel cover on the Conext Inverter see Figure 6 1 on page 6 6 Mount the Conext Inverter on the upper mounting bracket above the wiring disconnect box making sure the Conext Inverter s lower flange goes behind the wiring disconnect box See Figure 6 4 Replace the nuts that connect the Conext Inverter and the wiring disconnect box Tighten each nut alternately to clamp the gasket between the Conext Inverter and wiring disconnect box Secure all nuts tightly and torque to 1 8 2 0 Nm 16 17 7 in Ib a Uncap the DC wires and reconnect them to the terminals inside the Conext Inverter Insert the GROUNDED wire from the wiring disconnect box into the PV terminal block connection inside the Conext Inverter Insert the UNGROUNDED wire from the wiring disconnect box into the PV terminal block connection inside the Conext Inverter b Torque terminal block connection screws to 1 0 Nm 8 9 in Ib 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Identifying Error Fault Conditions and Solutions 6 Uncap the AC wires and reconnect them to the terminals inside the Conext Inverter a Insert the BLACK wire from the
78. nect switch to the ON position and turn the main utility panel breaker switches ON When power is restored to the Conext Inverter you can run Conext View on your computer to monitor the Conext Inverter s operation NOTICE In multiple installations Conext View monitors only the Conext Inverters to which the computer is connected However if the Conext Inverters are connected with a Xanbus network cable Conext View will display total system wattage and the accumulated daily energy produced by all Conext Inverters Monitoring multiple Conext Inverters requires multiple DB9 cable connections one per Conext Inverter to your computer For more information about Conext View see the User s Guide included with the Conext View software Document Part Number 975 061 1 01 01 975 0596 01 01 Revision A 3 27 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Fast Sweep Shade Tolerant MPPT Algorithm Conext View contains the Fast Sweep MPPT algorithm that optimizes the Conext Inverter s energy harvest under partially shaded conditions Once Conext View is installed and communication with the inverters has been established Fast Sweep can be enabled or disabled using Conext View For instructions see the Conext View User s Guide Document Part Number 975 061 1 01 01 available with the software 3 28 975 0596 01 01 Revision A This chapter is for use by qualified personn
79. necting the AC Wiring rrr errr ee 3 17 DC and AC Wiring for Multiple Conext Grid Tie Solar Inverters Single Phase System 3 18 DC and AC Wiring for Multiple Conext Grid Tie Solar Inverters Three Phase System 3 19 Communications Wiring for Multiple Conext Grid Tie Solar Inverters 3 20 Xanbus Network Technology rrr rrr rrr re 3 21 975 0596 01 01 Revision A xi Contents xii Guidelines for Routing the Network Cables 3 24 Connecting Network Cable Between Multiple Conext Grid Tie Solar Inverters 3 25 Verifying the Xanbus Network 2 2 re rrr rrr rrr rrr 3 26 Communications Wiring for Monitoring a Single Conext Grid Tie Solar Inverter 3 26 Fast Sweep Shade Tolerant MPPT Algorithm 3 28 Starting the Conext Grid Tie Solar Inverter Startup Procedure ses ers Hmmm en anna 4 2 Checking the PV Array DC Voltage 4 2 Checking the AC Utility Voltage 4 3 Replacing the Wiring Disconnect Box Cover 4 3 Starting the Conext Inverter 44 Commissioning Multiple Conext Grid Tie Solar Inverters
80. ng 3 Use an appropriately rated meter to make sure no DC or AC voltages are present Remove the display front panel cover see Figure 6 1 located below the heat sink Use a Phillips screwdriver to remove the two external panhead screws and washers and the two screws along the bottom edge of the cover The ground fault protection fuse is located to the left side of the LCD panel see Figure 6 2 Using an insulated fuse puller remove the blown fuse and replace it with a new AC DC midget cartridge rated 600 VDC 1A Littelfuse KLKD 1 or equivalent Replace the display front panel cover and tighten all four screws securely Replace the wiring disconnect box cover see instructions on page 4 3 Figure 6 1 Display front panel assembly 6 6 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Replacing Parts Ground fault LCD AC overcurrent protection fuse protection fuse Figure 6 2 Location of fuse front panel cover removed Replacing the Conext Grid Tie Solar Inverter NOTICE Only replace a Conext Inverter with another Conext Inverter that is the same model and grounding scheme If your Conext Inverter requires servicing you can replace it with another Conext Inverter of the same model leaving the existing wiring box in place This means that you do not have to disturb wiring connections in the wiring disconnect box However you do
81. ngle Conext Inverter to a personal computer 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Before opening the Conext Inverter wiring disconnect box turn OFF the breaker switches connected to the Conext Inverter AC output and turn the DC AC disconnect switch to the OFF position e Hazardous voltage will still be present on the DC input PV terminals located under the clear plastic insulation barrier Do not remove the insulation barrier during this procedure e To reduce the risk of shock isolate or disconnect all sources of electricity If the system does not provide a PV disconnect device cover the PV array with opaque dark material Failure to follow these instructions will result in death or serious injury 1 Feed the male end of the serial cable through a top side conduit hole on the Conext Inverter If the end of the serial cable is too large to fit through the conduit hole you might need to use two DB9 to CAT 5 adaptors Plug the DB9 end of the adapter into the Conext Inverter and feed the CAT 5 end of the cable out the conduit hole Use another adapter to convert the CAT 5 end of the cable back to DB9 2 Plug the male end of the serial cable into the Conext Inverter s RS 232 port 3 Plug the female end of the serial cable into your computer s serial port A USB to DB9 converter not supplied could be required 4 Replace the wiring disconnect box cover 5 Turn the DC AC discon
82. o neutral 106 1 131 5 VAC AC nominal output frequency 60 Hz AC operating range utility frequency 59 3 60 5 Hz Startup current OA Maximum AC continuous output current 16 0A 16 8A Maximum output fault current 25A Maximum output overcurrent protection internal AC 25A fuse rating Maximum utility backfeed current OA Total harmonic distortion lt 5 Power factor gt 0 99 at rated power gt 0 95 full power range Utility monitoring AC voltage frequency and anti islanding protection Output characteristics Current source Output current waveform Sine wave Factory settings can be adjusted with the approval of the utility The Conext Inverter is provided with adjustable trip limits and can be aggregated above 30 kW on a single Point of Common Coupling See Adjustable Voltage Frequency and Reconnection Settings on page A 12 Efficiency Output Voltage 240 VAC 208 VAC Maximum peak efficiency 96 3 96 0 CEC efficiency 95 5 95 5 Nighttime tare loss 1 21 W 0 96 W 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Specifications Kuang Values in legend are VDC v 3 a 5 _ Q F cc o se 3 Figure A 3 Conext TX 3800 NA 240 VAC typical efficiency 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 T 1 1 1 1 1 1 1 L 1 1 1 1 1 1 1 1 r 1 1 1 1 r 1 1 1
83. odes is 2 m when terminated at both ends Table 3 3 provides information on maximum Xanbus network length Table 3 3 Total Xanbus network length Xanbus Baud Rate Total Xanbus Network Length 250 kbps 130 ft 40 m 125 kbps 1000 ft 300 m 975 0596 01 01 Revision A 3 21 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Terminators RJ 45 Xanbus ports RJ 11 ports 3 22 A WARNING HAZARD OF UNPREDICTABLE NETWORK OPERATION Do not exceed the maximum total Xanbus network length shown in Table 3 3 Total Xanbus network length on page 3 21 Improper network operation can occur when these distances are exceeded Failure to follow these instructions can result in unintended operation that can result in death serious injury or equipment damage NOTICE e Xanbus baud rate is set to 250 kbps by default If you want to switch to 125 kbps make sure to follow the recommended procedure supplied in the baud rate change procedure application note 976 0216 01 01 at www schneider electric com renewable energies e Remote upgrade using the Xantrex Gateway accessory is not supported on systems with a 125 kbps baud rate If you change the baud rate to 125 kbps then you will no longer be able to use the Gateway to upgrade the firmware on Conext Inverters You will have to upgrade each Conext Inverter in the system via the RS 232 port When creating long Xan
84. of shock isolate or disconnect all sources of electricity If the system does not provide a PV disconnect device cover the PV array with opaque dark material Failure to follow these instructions will result in death or serious injury To provide communication between multiple C onext Inverters ale Remove the wiring disconnect box cover from each Conext Inverter See Accessing the Wiring Terminals on page 3 8 Connect the network cable to any RJ 45 port in Conext Inverter 1 Route the cable along the top of the insulation barrier and through a side conduit hole to Conext Inverter 2 Connect the network cable to any RJ 45 port in Conext Inverter 2 For more than two Conext Inverters continue connecting cable as described above Insert network terminators into the empty RJ 45 ports in the Conext Inverters at the beginning and end of the network There should be no empty RJ 45 ports in any of the Conext Inverters 975 0596 01 01 Revision A 3 25 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Verifying the Xanbus Network For long Xanbus networks greater than 328 feet 100 m you must verify network integrity using a CANbus network analysis tool such as the Maretron N2KMeter NMEA 2000 Diagnostic Tool To determine if the network is healthy check to see if any bus errors are present on the network The presence of bus errors specifically more than one bus e
85. om the power grid when abnormally low frequency is detected Clr t Clear time t Reconnect Delay 305 00s 3 seconds Setting for the reconnect delay for the protection timer After a fault clears for the specified clear time the protection timer starts counting down before the Conext Inverter attempts to deliver power to the grid The voltage and frequency thresholds clear times and reconnect delay can be adjusted for multiple inverter systems producing 30 kW or more with the permission of the local utility using GTConfigLite software tThe clear time is the total time to disconnect the output from the grid It is the sum of the debounce time and the hardware delay time The debounce time is the protection processor waiting time before it declares a fault This delay is necessary to avoid nuisance trips The protection timer begins counting down the reconnect delay during startup and the Reconnecting in sss seconds screen appears until the timer countdown is complete 54 975 0596 01 01 Revision A Front Panel Display Screens and What They Mean Normal Operation Mode Normal operation default display More screens for all systems The LCD on the Conext Inverter is refreshed every two seconds so all readings are current to within two seconds A default display is available at all times and a series of additional screens can be displayed by tapping the Conext Inverter s front panel After the protection timer h
86. ommunications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment to a different circuit from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help 975 0596 01 01 Revision A Contents Important Safety Instructions um nn nn nn vii Safety and Data Labels ix Safety Equipment hami 2 2 42224042 rescence cc 20002 x FCC Information for the User HH HH HH HH x 1 Introduction About the Conext Grid Tie Solar Inverter 1 2 Standard Features 0 50 5555 1 3 Front Panel Features rin i ei er as re is nite esis 14 Wiring Disconnect Box eee e 14 2 Installation Installation Options 2 2 Planning the Installation
87. on page 3 10 for instructions on using Cage Clamps The AC wiring procedure is illustrated in Figure 3 17 NOTICE The neutral conductor must be attached to the Conext Inverter in all cases The neutral conductor is used for phase to neutral voltage sensing only and is not a current carrying conductor This conductor is not bonded to ground in the Conext Inverter 975 0596 01 01 Revision A 3 17 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter Utility Meter Arm Ground 88888865 I Grounding not shown Main Utility Service Panel Figure 3 17 AC connections from Conext Inverter to utility service panel DC and AC Wiring for Multiple Conext Grid Tie Solar Inverters Single Phase System DC and AC wiring for multiple Conext Inverters in a single phase system is illustrated in Figure 3 18 If the system has more than one PV array label the positive and negative wire pairs appropriately for example PV1 String 1 POS PV1 String 1 NEG and so on If required by the AHJ a DC grounding conductor can be connected to each Conext Inverter s ground bar One Conext Inverter will connect to a common grounding conductor The other Conext Inverters will use tap connectors Connection is then made to the DC or AC grounding electrode as
88. onds each and then the Reconnecting in sss seconds special screen see Table 5 10 on page 5 10 will appear until the 305 second default value protection timer countdown has completed 0 0 9 0 0 ON OFF Figure 4 1 DC AC disconnect switch positions Commissioning Multiple Conext Grid Tie Solar Inverters In an installation with multiple Conext Inverters special commissioning procedures must be followed in order to safely determine if any DC wiring problems exist NOTICE Before performing this procedure all Conext Inverters must be off with the DC AC disconnect switch in the OFF position To commission multiple Conext Inverters 1 Uncover the PV arrays and or close the main DC disconnect switch if one is installed Start the first Conext Inverter by turning the DC AC disconnect switch to the ON position Check the Conext Inverters LCD The startup screens see Table 5 1 on page 5 3 should appear for five seconds each and then the Reconnecting in sss seconds special screen see Table 5 10 on page 5 10 will appear until the 305 second default value protection timer countdown is completed 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Commissioning Multiple Conext Grid Tie Solar Inverters 4 Wait for the input current to rise above 1 A This information is displayed on the Array Readings screen To display the Array
89. opening doors or covers consult the system diagram to identify all sources de energize lock out and tag out all sources and wait at least five minutes for internal capacitors to discharge to safe voltages Before servicing test using a meter rated at least 1000 volts AC and DC to ensure all circuits are de energized The Conext Inverter is provided with integral PV ground fault protection Normally GROUNDED conductors might be UNGROUNDED and ENERGIZED when a GROUND FAULT is indicated Disconnect all sources of power before opening The Conext Inverter employs field adjustable voltage and frequency set points and time delays that are factory set in compliance with local utility and safety requirements and can be changed only by trained technicians with approval by both the local utility and equipment owner Failure to follow these instructions will result in death or serious injury Wiring the Conext Grid Tie Solar Inverter Chapter 3 provides information about DC and AC wiring as well as grounding the Conext Inverter and the PV array This chapter does not provide sufficient information for anyone but qualified personnel as defined under Audience on page ili to install this product The topics in this chapter are organized as follows e Grounding Requirements on page 3 3 e Wiring Requirements on page 3 5 e Accessing the Wiring Terminals on page 3 8 e Connecting the DC Wiring
90. operation screens Each screen is displayed for a maximum of 30 seconds If you do not tap again during that time period the LCD backlight turns off and the display reverts to the default system message screen 975 0596 01 01 Revision A 5 5 Monitoring the Conext Grid Tie Solar Inverter Table 5 3 Normal operation screens Tap Display Description 1st System 5000W LCD backlight turns on for better readability Today 2 500kWh and default Normal Operation screen is displayed 2nd System Lifetime Lifetime energy produced by the Conext 305kWh Inverter system 3rd Time Online Length of time Conext Inverter has been online Today hh mm ss today in hours hh minutes mm and seconds ss 4th Array Readings Immediate DC voltage and current readings 350 5V 8 4A from the PV array 5th Grid Readings Immediate AC voltage and frequency readings 242 6V 60 0Hz from the grid 6th XanBus 250Kbps Xanbus network baud rate transmitter and Tx OK Rx OK receiver status In a multiple inverter system with network cables properly installed the System values displayed are for the entire system For example in a two inverter system if Conext Inverter 1 is producing 1500 W and Conext Inverter 2 is producing 2000 W both Conext Inverters display a total system power of 3500 W Time OnlineandArray Readings arefor the local Conext Inverter and PV array associated with that Conext Inverter Additional screens In addition to the normal syste
91. or Multiple Conext Grid Tie Solar Inverters For example in a two inverter system if Conext Inverter 1 is producing 1500 W and Conext Inverter 2 is producing 2000 W both Conext Inverters display a total system power of 3500 W The cumulative energy produced by both Conext Inverters that day is also displayed You can also view information for an individual Conext Inverter in a system See To view single inverter specific screens in a multiple inverter system on page 5 6 Without communications wiring network cables each Conext Inverter in a system will only display information pertinent to itself Xanbus Network Technology Conext Inverters use Xanbus technology to communicate with other Conext Inverters Network connections for multiple Conext Inverters are laid outin a daisy chain pattern with each device on the network linked together with separate lengths of cable as shown in Figure 3 20 Network terminator Xanbus cable Network terminator Figure 3 20 Daisy chain layout CAUTION RISK OF EQUIPMENT DAMAGE AND FAILURE e Connect only Xanbus enabled devices e Although the cabling and connectors used in this network system are the same as ethernet connectors this network is not an ethernet system Equipment damage could result from attempting to connect Xanbus to different systems Failure to follow these instructions can result in equipment damage The minimum cable length between two n
92. per NEC 690 47 Make sure all connections are secured in the terminal block See Cage Clamps on page 3 10 for instructions on using Cage Clamps 3 18 975 0596 01 01 Revision A This chapter is for use by qualified personnel only DC and AC Wiring for Multiple Conext Grid Tie Solar Inverters Three Phase System 08900090099 Main Utility Service Panel BEEE Grounding not shown Figure 3 18 DC and AC wiring with multiple Conext Inverters single phase system DC and AC Wiring for Multiple Conext Grid Tie Solar Inverters Three Phase System Conext Inverters can be connected in multiples of three to create a balanced three phase distributed power generation system Different models can be combined to help match the available PV power see Table 3 2 on page 3 20 for some examples Conext Inverters can be connected between any phase on a 208 VAC WYE service but they can only be connected to the centre tap side of a 240 V Delta service see Figure 3 19 on page 3 20 Connection to a 208 VAC WYE service provides the ability to balance the generating power if an equal number of Conext Inverters feed each phase Connect each Conext Inverter to a phase of the 208 V 120 V WYE transformer where line to line voltage
93. r Inverter Performance on page 6 2 e Performing General Maintenance on page 64 e Replacing Parts on page 64 e Identifying Error Fault Conditions and Solutions on page 6 11 Factors Affecting Conext Grid Tie Solar Inverter Performance This section describes several factors that affect the amount of power a properly installed and operating Conext Inverter can produce PV Array Factors PV array ratings Expected performance Temperature and reduced output 6 2 PV arrays are rated under standardized conditions such as specified illumination 1000 Wim spectrum of the light and specified temperature 77 F 25 C which seldom reflect real world installations This is called the STC Standard Test Condition rating and is the figure that appears on the PV module nameplate label Due to several unavoidable environmental factors you can expect your PV array to produce around 60 to 70 of its peak STC rated output for a properly designed and installed PV system on a typical day PV array temperature affects the output of the entire system As the temperature on the array surface rises its energy output decreases Roof mounted arrays also collect the heat generated by the roof surface or trapped under the array and will produce less output than pole mounted arrays which allow greater air circulation behind the panels 975 0596 01 01 Revision A This chapter is for use by qualified personnel only
94. rid when abnormally high phase to phase AC voltage is detected Clr t Clear time t Vl 177V 3 seconds VI Phase to phase RMS low threshold voltage Clr t lt 2 00s setting The threshold at which the Conext Inverter disconnects itself from the power grid when abnormally low phase to phase AC voltage is detected Clr t Clear time t 975 0596 01 01 Revision A 5 3 Monitoring the Conext Grid Tie Solar Inverter Table 5 1 Startup screens on Conext Inverter front panel display Display Duration Description Vph 130V Clr t lt 1 00s 3 seconds Vph Phase to neutral RMS high threshold voltage setting The threshold at which the Conext Inverter disconnects itself from the power grid when abnormally high phase to neutral AC voltage is detected Clr t Clear time t Vpl 107V Clr t lt 2 00s 3 seconds Vpl Phase to neutral RMS low threshold voltage setting The threshold at which the Conext Inverter disconnects itself from the power grid when abnormally low phase to neutral AC voltage is detected Clr t Clear time t Fh 60 4Hz Clr t lt 0 16s 3 seconds Fh Frequency high threshold setting The threshold at which the Conext Inverter disconnects itself from the power grid when abnormally high frequency is detected Clr t Clear time t Fl 59 4Hz Clr t lt 0 16s 3 seconds Fl Frequency low threshold setting The threshold at which the Conext Inverter disconnects itself fr
95. rray grounding Array negative is grounded internally via 1 A fuse PV ground fault protection GF detection when 1 A fuse clears Output Nominal AC output voltage 240 VAC 208 VAC Maximum AC output power 5000 W 4500 W AC operating range utility voltage phase to phase 212 263 VAC 184 228 VAC AC operating range utility voltage phase to neutral 106 1 131 5 VAC AC nominal output frequency 60 Hz AC operating range utility frequency 59 3 60 5 Hz Startup current OA Maximum AC continuous output current 21A 22A Maximum output fault current 30 A Maximum output overcurrent protection internal AC 30 A fuse rating Maximum utility backfeed current OA Total harmonic distortion lt 3 Power factor gt 0 99 at rated power gt 0 95 full power range Utility monitoring AC voltage frequency and anti islanding protection Output characteristics Current source Output current waveform Sine wave Factory settings can be adjusted with the approval of the utility The Conext Inverter is provided with adjustable trip limits and can be aggregated above 30 kW on a single Point of Common Coupling See Adjustable Voltage Frequency and Reconnection Settings on page A 12 A 2 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Electrical Specifications Efficiency Output Voltage 240 VAC 208 VAC Maximum peak efficiency
96. rror per second indicates that the network is not operating optimally If the CANbus analyzer indicates your network is not operating properly check the following and then re test the network e Make sure the total Xanbus network length has not been exceeded See Table 3 3 Total Xanbus network length on page 3 21 e Make sure the network has only two terminators installed one at each far end of the network e Make sure no long stub connections are coming from a Xanbus 3 port Tconnector if any are used Daisy chain network configuration is the optimal configuration e Make sure all cable sections are correct and not shorted anywhere Communications Wiring for Monitoring a Single Conext Grid Tie Solar Inverter You can view Conext Inverter operational data on a personal computer using Conext View Download it at www schneider electric com To use Conext View connect your computers serial port to the Conext Inverter RS 232 port see Figure 3 22 on page 3 23 RS 232 cable To connect your computer to the Conext Inverter you must use a serial DB9 requirements straight through cable The RS 232 connector on the Conext Inverter is configured as follows Pin 2 transmit Pin 3 receive e Pin 5 ground All other pins are unused 3 26 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Communications Wiring for Monitoring a Single Conext Grid Tie Solar Inverter To connect a si
97. ructions for starting the Conext Grid Tie Solar Inverter and performing a functional test The topics in this chapter are organized as follows e Startup Procedure on page 4 2 e Commissioning Multiple Conext Grid Tie Solar Inverters on page 44 e Disconnect Test on page 4 6 e Locating the Firmware Version Number on page 4 7 Startup Procedure Starting the Conext Inverter includes several steps You must 1 2 Make sure the DC AC disconnect switch is in the OFF position see Figure 4 1 Check the PV array DC voltage Follow the procedure in Checking the PV Array DC Voltage on page 4 2 Check the AC utility voltage Follow the procedure in Checking the AC Utility Voltage on page 4 3 Replace the cover on the wiring box Follow the procedure in Replacing the Wiring Disconnect Box Cover on page 4 3 Start the Conext Inverter by switching the DC AC disconnect switch ON see Figure 4 1 Checking the PV Array DC Voltage To check the PV array DC voltage 1 2 4 2 Uncover the PV arrays and expose them to full sunlight The sunlight must be intense enough to produce the required output voltage Measure the PV array open circuit DC voltage across the DC positive and negative terminals of the string combiner This voltage must be greater than 150 volts DC to energize the electronics and less than 600 volts DC to help prevent damage to the Conext Inverter 97
98. rviced only by qualified personnel equipped with appropriate personal protective equipment and following safe electrical work practices e The Conext Inverter is energized from two sources PV array while exposed to light and AC grid Before opening doors or covers consult the system diagram to identify all sources de energize lock out and tag out all sources and wait at least five minutes for internal capacitors to discharge to safe voltages Before servicing test using a meter rated at least 1000 volts AC and DC to make sure all circuits are de energized The Conext Inverter is provided with integral PV ground fault protection Normally GROUNDED conductors might be UNGROUNDED and ENERGIZED when a GROUND FAULT is indicated Disconnect all sources of power before opening e The Conext Inverter employs field adjustable voltage and frequency set points and time delays that are factory set in compliance with local utility and safety requirements and can be changed only by trained technicians with approval by both the local utility and equipment owner Failure to follow these instructions will result in death or serious injury Maintenance and Troubleshooting Chapter 6 contains information on general maintenance of the Conext Grid Tie Solar Inverter It also provides information about troubleshooting the Conext Inverter The topics in this chapter are organized as follows e Factors Affecting Conext Grid Tie Sola
99. s Check for incorrectly wired PV arrays Make sure a voltage within the operating voltage range is present at the Conext Inverter s terminals Only the red LED is illuminated and the display reads Ground Fault 6 12 Ground fault condition detected on the PV array The PV system should be checked and repaired See Table 5 8 on page 5 8 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Identifying Error Fault Conditions and Solutions Table 6 1 Troubleshooting the Conext Inverter Problem Possible Cause Solution The System value power being produced by the system displayed on each Conext Inverter s LCD is different on Conext Inverters connected to the same daisy chained network Conext Inverters can display different System values when one of the Conext Inverters is set to a different baud rate than the rest That particular Conext Inverter s baud rate screen shows for Tx and or Rx see Table 5 3 on page 5 6 Check each Conext Inverter s baud rate and compare the settings Each Conext Inverter must have the same baud rate Change any Conext Inverters with an inconsistent baud rate making sure to follow the recommended procedure supplied in the baud rate change procedure application note 976 0216 01 01 available on www schneider electric com renewable energies A standalone Conext Inverter s display shows one of the following
100. s at startup and after any grid fault Inverter Conext Inverter switching or has switched from normal Offline operation to offline mode This screen might flash alternately with a fault message screen 975 0596 01 01 Revision A Front Panel Display Screens and What They Mean Table 5 10 Special message screens Display Description System 9600W The asterisk in these two screens see Table 5 2 and Today 15 56kWh Table 5 4 indicates that the Conext Inverter is derating its output power because the heat sink temperature is Unit 4800W u Today 7 82kWh above 84 C 183 F The asterisk only appears when the power is actually being limited by the Conext Inverter Insufficient Indicates the Conext Inverter is not producing power Solar Energy due to insufficient solar energy during low light conditions in early morning or late afternoon or when the PV array is in shade This screen flashes alternately with the normal operation default screen Custom Screens Two custom screens are available The Conext Inverter does not display them unless they are configured using Conext View see page 3 26 If programmed the custom screens display as the fourth and fifth screens during the startup sequence They can also be viewed by tapping the Conext Inverter during normal operation and fault mode The first custom screen is intended for the home owner to display information such as the name or location of the PV array a
101. s of electricity and always test for voltage before touching exposed wiring or devices If the system does not provide a PV disconnect device cover the PV array with opaque dark material Failure to follow these instructions will result in death or serious injury Combiner Fuses Optional A WARNING HAZARD OF FIRE If the array consists of more than two strings fusing might be required to help prevent conductor overloads Consult your local authority and electrical code for details Failure to follow these instructions can result in death or serious injury 3 6 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Wiring Requirements There is provision for an optional touch safe DIN rail mount 35 mm x 7 5 mm fuse holder A Ferraz Shawmut fuse holder is recommended part number USMS The fuse holder must be wired in series with the PV UNGROUNDED terminals in the wiring box using a minimum of 10 AWG wire and it must be secured to the DIN rail installed in the DC side of the wiring box See Figure 3 3 Pr 1 A mk as ny Valine Figure 3 3 Fuse holder wiring The fuse holders must Be either CSA certified to or UL Listed UR Recognized for use in 600 VDC circuits and up to a minimum of 30 ADC Be suitable for use with copper field wiring for either stranded or solid wire as appropriate Be rated for use in ambient temperatures up to at least 104 F 40
102. se date WA 4 PV photovoltaic iv PV arrays angle of the sun 6 3 checking DC voltage 4 2 effect of shade on performance 6 3 factory ratings 6 2 temperature affecting performance 6 2 types of modules 2 4 voltage requirements 2 4 R RJ 11 ports 3 22 RJ 45 ports communication between inverters 3 22 location in wiring box 3 9 RMS root mean square iv RS 232 port 3 26 5 9 S safety instructions vii Schneider Electric web site vi serial number WA 4 settings utility disconnect 5 4 A 12 shade tolerance 6 3 specifications electrical A 2 mechanical A 14 975 0596 01 01 Revision A This manual is for use by qualified personnel only standard wiring box features 1 3 description 1 5 test conditions iv 6 2 removing the cover 3 8 startup procedure removing the inverter from 6 8 checking PV array DC voltage 4 2 RJ 45 ports 3 9 checking utility AC voltage 4 3 terminal block location 3 9 monitoring front panel display 5 2 overview 4 2 X replacing wiring box cover 4 3 Xanbus technology 3 20 starting the inverter 44 status LEDs description 5 12 do not illuminate 6 12 red LED is on 6 12 STC standard test conditions iv T temperature affecting PV array performance 6 2 range for locating inverter 2 3 terminal blocks in wiring box 3 9 terminators network 3 22 thermal derating chart A 13 three phase AC and DC wiring 3 19 torque values for wires 3 3 3 15 troubleshooting 6 12 U UL Underwriters Laboratories iv utility d
103. ssembled or modified without prior written authorization by Xantrex Proof of purchase may be in any one of the following forms e The dated purchase receipt from the original purchase of the product at point of sale to the end user The dated dealer invoice or purchase receipt showing original equipment manufacturer status or e The dated invoice or purchase receipt showing the product exchanged under warranty 975 0596 01 01 Revision A WA 1 This manual is for use by qualified personnel only Warranty and Return Information In the event a proof of purchase is not available then the original Xantrex dated invoice will be used If no original Xantrex dated invoice can be found the manufacturing date of the product will be used What does this warranty not cover Claims are limited to repair and replacement or if in Xantrex s discretion that is not possible reimbursement up to the purchase price paid for the product Xantrex will be liable to you only for direct damages suffered by you and only up to a maximum amount equal to the purchase price of the product This Limited Warranty does not warrant uninterrupted or error free operation of the product or cover normal wear and tear of the product or costs related to the removal installation or troubleshooting of the customer s electrical systems This warranty does not apply to and Xantrex will not be responsible for any defect in or damage to a the product if it has been misused neglect
104. ssociated with the Conext Inverter The second custom screen is intended for installers who can configure the screen to display for example contact information for service 975 0596 01 01 Revision A 5 11 Monitoring the Conext Grid Tie Solar Inverter Status Indicator Lights The Conext Inverter has two status indicator lights LEDs located below the front panel LCD Figure 5 2 These LEDs indicate the Conext Inverter s status Table 5 11 and assist in troubleshooting the performance of the Conext Inverter Only one indicator light will be lit at any time Table 5 11 Status indicator LEDs LED on Means Green Conext Inverter is on DC voltage and AC voltage are qualified and the protection timer has finished and delivering power No action required Turns off when a fault state is detected Red Ground fault condition detected Check for any fault messages on the display see Table 5 8 and refer to Table 6 1 Troubleshooting the Conext Inverter on page 6 12 to resolve the fault condition JIEINIIELIIDDIEN Green LED lt Mr Red LED Figure 5 2 Status indicator lights 5 12 975 0596 01 01 Revision A Maintenance and Troubleshooting 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e The Conext Grid Tie Solar Inverter has no user serviceable parts inside It must be installed and se
105. sult in death or serious injury 975 0596 01 01 Revision A 3 5 This chapter is for use by qualified personnel only Wiring the Conext Grid Tie Solar Inverter AC Circuit Breaker Requirements The main utility service panel must dedicate a double pole breaker to operate each installed Conext Inverter This breaker must be sized to handle the rated maximum output voltage and current of your Conext Inverter model see Electrical Specifications Output beginning on page A 2 DC AC Disconnect Switch The wiring box includes a 600 V utility PV disconnect switch that switches both AC and DC at the same time Depending on the installation an external AC and or DC disconnect might be required if the Conext Inverter is installed in a location not easily accessible to utility or fire personnel Consult local authorities for additional information A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Do not remove the wiring disconnect box The 600 V DC AC disconnect in the wiring box meets NEC Article 690 requirements It is a non serviceable component and must remain in place Removal can expose energized conductors e Use caution when working around sources of DC power Although the DC AC disconnect switch disconnects the Conext Inverter from DC power hazardous voltages from paralleled PV strings will still be present upstream of the switch and inside the wiring box Isolate or disconnect all source
106. tent Replacing Parts A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH The Conext Grid Tie Solar Inverter has no user serviceable parts inside It must be installed and serviced only by qualified personnel equipped with appropriate personal protective equipment and following safe electrical work practices Failure to follow these instructions will result in death or serious injury 64 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Replacing Parts See Warranty and Return Information on page WA 1 for information on how to get service for your Conext Inverter Replacing the Ground Fault Protection Fuse 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Conext Inverter fuses must be replaced only by qualified service personnel such as a certified electrician or technician using appropriate personal protective equipment and following safe work procedures After disconnecting both AC and DC power from the Conext Inverter wait five minutes before attempting troubleshooting or maintenance on any circuits connected to the Conext Inverter to allow internal capacitors to discharge to a safe state e Isolate or disconnect all sources of electricity during this procedure If the system does not provide a PV disconnect device cover the PV array with opaque dark material Otherwise leakage current from the ungrounded conductor to ground at the arr
107. ter s front panel Each additional tap displays the next screen in the order shown in Table 5 9 Table 5 9 Additional fault mode screens Tap Display Description 1st Current fault message LCD backlight turns on for better readability screen see Table 5 8 2nd System 0W Energy being produced by the system now and Today 2 500kWh cumulative energy produced by the system today 3rd System Lifetime Lifetime energy produced by the system 305kWh 4th Time Online Length of time Conext Inverter online today in Today hh mm ss hours hh minutes mm and seconds ss 5th Array Readings Immediate DC voltage and current readings of 350 5V 8 4A power from the PV array 6th Grid Readings Immediate AC voltage and frequency readings 242 6V 60 0Hz of power from the grid In a multiple inverter system with network cables installed the System values displayed are for the entire system Time Online and Array Readings are for the local Conext Inverter and PV array associated with that Conext Inverter Special message screens are displayed in specific situations that are not considered fault situations They can appear in any mode of operation These screens are described in Table 5 10 Table 5 10 Special message screens Display Description Reconnecting in Time remaining in seconds sss before the Conext sss seconds Inverter reconnects to the grid This is a protection timer It runs for approximately five minute
108. to applicable codes Failure to follow these instructions will result in death or serious injury 975 0596 01 01 Revision A vii Safety 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH To avoid a risk of fire and electric shock make sure that all wiring is in good condition and that wire is not undersized Do not operate the Conext Inverter with damaged undersized or substandard wiring The Conext Inverter must be connected to the AC ground from the utility via the Conext Inverter ground lug A DC grounding electrode conductor might be required by the AHJ Use the Conext Inverter ground bar for this connection The AC N connection is for voltage sensing only and is not used as a current carrying conductor It is not internally bonded to ground within the Conext Inverter Do not operate the Conext Inverter if it has received a sharp blow been dropped or otherwise been damaged in any way If the Conext Inverter is damaged see the Warranty on page WA 1 Use only accessories recommended or sold by the manufacturer Failure to follow these instructions will result in death or serious injury A WARNING HAZARD OF BURNS OR FIRE Do not touch the heat sink Under some conditions the Conext Inverter heat sink can reach temperatures hot enough to cause skin burns if touched Make sure that the Conext Inverter is located away from normal traffic areas Observe the clearance recomm
109. to become a shock hazard even with the DC AC disconnect switch turned OFF The Conext Inverter should be removed from the wiring box only when a replacement Conext Inverter is immediately available Do not leave the top of the wiring box exposed for extended periods of time Failure to follow these instructions will result in death or serious injury To remove the Conext Inverter from the wiring box 1 Turn OFF the AC breaker in the main utility service panel and the DC AC disconnect switch on the Conext Inverter Isolate or disconnect all sources of electricity If the system does not provide a PV disconnect device cover the PV array with opaque dark material 2 Remove the wiring disconnect box cover and then remove the display front panel cover see Figure 3 4 on page 3 8 and Figure 6 1 on page 6 6 3 Use an appropriately rated meter to check that no DC or AC voltages are present at the disconnect box input terminals and Conext Inverter terminal blocks Disconnect any network cables from the Conext Inverter 5 Label the DC and AC wires connected to the Conext Inverter terminal blocks so they can be installed in the correct location on the replacement Conext Inverter 6 Disconnect all DC and AC wires from the Conext Inverter terminal blocks pull the wires into the wiring disconnect box and cap all disconnected AC and DC wire ends with wire nuts 6 8 975 0596 01 01 Revision A This chapter is for use by qual
110. trode conductor might be required by the AHJ Check local codes before installation Ground Fault Fuse The Conext Inverter is equipped with a 600 V 1 A ground fault protection fuse replace with Littelfuse KLKD 1 or equivalent 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH The ground fault protection fuse must only be serviced by qualified service personnel such as certified electricians or technicians See Replacing the Ground Fault Protection Fuse on page 6 5 Failure to follow these instructions will result in death or serious injury Wiring Requirements A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Check for existing electrical or plumbing prior to drilling holes in walls Failure to follow these instructions will result in death or serious injury All AC and DC wiring must be copper conductors only rated 90 C minimum and sized from 6 to 12 AWG according to the applicable electrical code Strip all wires 0 48 0 51 inches 12 13 mm For safety and compliance with local electrical codes such as the NEC run AC DC and communication wires in separate conduits A WARNING HAZARD OF FIRE e Wiring must not be undersized Wire sizes must be coordinated with the array maximum short circuit current or the AC breaker sizes used e Make sure wiring is in accordance with the NEC or applicable codes Failure to follow these instructions can re
111. um clearances in Table 2 2 are not met rated power might not be achieved Table 2 2 Conext Inverter clearance requirements Location Minimum Clearance Above 12 inches 300 mm Below Allow sufficient clearance between the bottom of the Conext Inverter and the ground for easy operation of disconnect switch The Conext Inverter extends below the bracket by approximately 6 inches 170 mm Front 12 inches 300 mm minimum 36 inches 910 mm are recommended for easy access for reading the display avoiding accidental contact with hot surfaces and servicing the Conext Inverter Sides Conext Inverters can be mounted side by side with no clearance between them but 6 inches 150 mm of clearance around the outside edges of the outermost two Conext Inverters is recommended In hot climates some clearance between Conext Inverters might be needed to help prevent thermal derating Surfaces for Mounting The Conext Inverter can be mounted to a vertical surface such as wallboard wood siding concrete wall or pole assembly Make sure the mounting surface or structure can support the weight of the Conext Inverter up to 84 Ib 38 1 kg as well as the associated wiring and conduit Installation onto wallboard requires either the use of a supporting material such as plywood or securing the mounting screws to supporting wall studs NOTICE e Local codes might impose additional mounting requirements in earthquake or other hi
112. urer provides a VOC rating per panel but it is usually rated at 77 F 25 C Make sure that the VOC rating at the coldest ambient temperature does not exceed 600 VDC Panel voltage increases in cold temperatures The panel manufacturer should be able to provide a coefficient of voltage increase per degree e The NEC has required temperature voltage deratings that must be used These can be found in Article 690 of the NEC You must determine the coldest temperatures expected on the site and then size the array strings accordingly To help prevent damage to the Conext Inverter the array s maximum DC voltage in the coldest expected temperature with both manufacturer coefficient and NEC derating must not exceed 600 VDC Panel voltage decreases in high temperatures This will affect the panels VMPP and VOC The manufacturer s coefficient must be used with the highest expected temperature to determine the minimum VMPP and VOC NOTICE A PV array sizing tool is available at www schneider electric com Mounting the Conext Grid Tie Solar Inverter AWARNING HEAVY EQUIPMENT The Conext Inverter weighs up to 84 0 Ibs 38 1 kg Use proper lifting techniques in accordance with local workplace safety rules and always use assistance when moving or lifting Failure to follow these instructions can result in death or serious injury Dimensions and Knockout Locations Dimensions and knockout locations
113. ust commissioned and tested by switching off the breaker on the main panel You can then run the commissioning procedure and disconnect test on the next Conext Inverter 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Locating the Firmware Version Number Locating the Firmware Version Number The firmware version number for the protection processor is visible on ascreen that appears when the Conext Inverter is started or is powered up after switching the DC AC disconnect switch to ON The screen reads Flash 03 xx ROM 03 xx The number appearing after ROM is the firmware version number for the protection processor 975 0596 01 01 Revision A 4 7 This chapter is for use by qualified personnel only Monitoring the Conext Grid Tie Solar Inverter Chapter 5 contains information about the LCD screens and the LED indicators The topics in this chapter are organized as follows e Monitoring the Front Panel Display on page 5 2 e Front Panel Display Screens and What They Mean on page 5 3 e Status Indicator Lights on page 5 12 Monitoring the Conext Grid Tie Solar Inverter Monitoring the Front Panel Display During startup During waiting period During operation When the Conext Inverter is offline or a fault condition exists Viewing more information 5 2 During startup the Conext Inverter s front panel LCD see Figure 5 1 on page 5 2 shows the screens
114. ut down automatically and only restart when the temperature has dropped below 78 C 172 F Ground Fault Reset System A grounding fault is detected The ground fault fuse will be blown The system must be shut down completely the fault must be corrected and the fuse must be replaced see Replacing the Ground Fault Protection Fuse on page 6 5 Then the system must be restarted Troubleshooting a grounding fault must be performed by qualified personnel such as a certified electrician or technician Unit Shutdown via Remote The Conext Inverter has been shut down via a computer connected to the RS 232 port Protection uP Not Responding The protection microprocessor is not responding It is normal to receive this fault during low light conditions at dawn or dusk At such times the array does not have sufficient energy to power the Conext Inverter so the PV voltage drops below the lower limit of the maximum power point range occasionally Grid fault When this fault is cleared the protection timer will begin its countdown and you will see the Reconnecting in sss seconds and Inverter Offline special screens see Table 5 10 flashing alternately until the countdown is complete 975 0596 01 01 Revision A Monitoring the Conext Grid Tie Solar Inverter Additional Fault messages for all systems Special Screens 5 10 Additional message screens can be viewed in fault mode by tapping the Conext Inver
115. verter stops delivering power Offline Shutdown or VOC gt absolute maximum VOC Array voltage and current limits 24 and shuts down Conext Inverter could be damaged The maximum power point voltage VMPP of a string connected to the Conext Inverter should preferably be above the lower limit of the MPPT range for that model If it is below the lower limit of the MPPT range the Conext Inverter continues to operate but it regulates the PV voltage to the lower limit of the MPPT range Because the array is not operating at its maximum power point lower than expected energy harvest could result If VOC is below the lower limit of the MPPT range the Conext Inverter remains offline and does not deliver power CAUTION RISK OF EQUIPMENT DAMAGE To help prevent damage to the Conext Inverter the array voltage must never exceed 600 VOC open circuit voltage under any condition The short circuit current l rating of the array under worst case conditions of solar irradiance and panel temperature must not exceed the lsc rating of the Conext Inverter Failure to follow these instructions can result in equipment damage 975 0596 01 01 Revision A This chapter is for use by qualified personnel only Mounting the Conext Grid Tie Solar Inverter Guidelines for Matching PV Array Size to Conext Grid Tie Solar Inverter Input e Consider the expected VOC of the string under all possible conditions The panel manufact
116. wiring disconnect box into the L1 terminal block connection inside the Conext Inverter b Insert the RED wire from the wiring disconnect box into the L2 terminal block connection inside the Conext Inverter c Insert the WHITE wire from the wiring disconnect box into the Neutral terminal block connection inside the Conext Inverter d Torque terminal block connection screws to 1 0 Nm 8 9 in Ib 7 Re connect any communications cables and then make sure all connections are correctly wired and secured Re install the display front panel cover and wiring disconnect box cover 8 Follow the startup procedure as described on page 4 2 Identifying Error Fault Conditions and Solutions A DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH Only qualified personnel equipped with appropriate personal protective equipment and following safe electrical practices should attempt to troubleshoot the Conext Inverter Failure to follow these instructions will result in death or serious injury Most error or fault conditions will be identified by fault message screens on the Conext Inverter s front panel LCD These are described in the Fault Mode section on page 5 8 of this manual Most of these fault conditions are self correcting and require no action to remedy See Front Panel Display Screens and What They Mean on page 5 3 for more information 975 0596 01 01 Revision A 6 11 This chapter is for use by qua
117. xcluding the requirements for Interconnection Installation Evaluation Commissioning Tests and Periodic Interconnection Tests 975 0596 01 01 Revision A This appendix is for use by qualified personnel only Warranty and Return Information Warranty What does this warranty cover and how long does it last This Limited Warranty is provided by Xantrex Technology Inc Xantrex and covers defects in workmanship and materials in your Conext Grid Tie Solar Inverter This warranty period lasts for 10 years from the date of purchase at the point of sale to you the original end user unless otherwise agreed in writing the Warranty Period Your warranty claims are conditional upon and subject to your demonstration of proof of purchase of the product as described in What proof of purchase is required This Limited Warranty is transferable to subsequent owners but only for the unexpired portion of the Warranty Period Warranty claims of subsequent owners are also subject to the same proof of purchase requirements referenced above and described below What will Xantrex do During the Warranty Period Xantrex will at its option repair the defective product if economically feasible or replace the defective product free of charge provided that you notify Xantrex of the product defect within the Warranty Period and provided that Xantrex through inspection establishes the existence of such a defect and that it is covered by this Limited Warranty
118. ze its energy production in all of the above situations using its MPPT algorithm The shade tolerance algorithm can be enabled and disabled using Conext View For instructions see the Conext View User s Guide Document Part Number 975 0611 01 01 available with the software For information on installing Conext View see Communications Wiring for Monitoring a Single Conext Grid Tie Solar Inverter on page 3 26 For more information on shade tolerant MPPT optimization see the white paper Photovoltaic String Inverters and Shade Tolerant Maximum Power Point Tracking Toward Optimal Harvest Efficiency and Maximum ROI for more information available at http www se renbu docs com SEShade TolerantWP pdf Other factors that contribute to system losses are e Dust or dirt on the array e Fog or smog e Mismatched PV array modules with slight inconsistencies in performance from one module to another Conext Inverter efficiency e Wire losses e Utility grid voltage For additional information and technical notes concerning PV array performance see www schneider electric com 975 0596 01 01 Revision A 6 3 This chapter is for use by qualified personnel only Maintenance and Troubleshooting Performing General Maintenance 4 DANGER HAZARD OF ELECTRIC SHOCK EXPLOSION FIRE OR ARC FLASH e Use caution when working around sources of DC power Although the DC AC disconnect switch disconnects the Conext Inverter from DC power

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