Xantrex PV-225208 User's Manual
Contents
1. POWER OPERATOR ELECTRONICS INTERFACE MATRIX N a STs XH PANEL MAIN ENCLOSURE MM Y AC INTERFACE Sanne _ DC INTERFACE pu En V 4 m m O id UJ n UJ Pe UU Ten UJ FAN SHROUD FAN SHROUD lt ld INDUCTOR ENCLOSURE Figure 1 1 DOCUMENT 151811 PV 225208 Photovoltaic Inverter 1 1 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 1 xantrex PRODUCT DESCRIPTION Smart choice for power AC Interface Enclosure This enclosure is NEMA 3R rated The AC Interface serves as the connection between the isolation transformer utility and the PV 225208 This enclosure is where the AC line fuses and AC disconnect switch reside For specific control components see Drawing No 151809 in Section 7 Appendix DC Interface Enclosure This enclosure is NEMA 3R rated The DC Interface serves as the connection interface between the PV array and the PV 225208 This enclosure is where the DC disconnect switch and DC contactor reside For specific control components see Drawing No 151810 in Section 7 Appendix CAUTION The fuses within the PV 225208 are intended for protecting the PV 225208 control circuitry only They are not intended to provide protection for the PV array or external cabling2. 7 1 Drawings List s na nn apashanki y un apus 7 4 Warranty and Certifications 7 4 SECTION 1 xantrex PRODUCT DESCRIPTION Smart choice for power INTRODUCTION The Xantrex Technology Model PV 225208 is a current following grid tied photovoltaic inverter utilizing state of the art IPM Intelligent Power Module insulated gate bi polar transistors IGBT s and gate drive circuits to allow interface of a photovoltaic array with a utility grid The PV 225208 consists of an inverter bridge photovoltaic controller and associated control electronics The PV 225208 control software provides for complete overall system control with a variety of protection and safety features MAJOR COMPONENTS The major components of the PV 225208 are identified in Figure 1 1 Control components are identified in Figure 1 2 For specific control components see Drawing No 151808 located in Section 7 Appendix Main Enclosure This enclosure is NEMA 3R rated The PV 225208 main enclosure contains the power electronic inverter bridge electrical and electromechanical control components power supplies system sensing circuits and the PV 225208 embedded control unit Also found within the main enclosure are some ofthe system protection devices sense and control power fuses
3. 3 1 Torque and Wire Gauge Specifications 3 1 Installation Instr ctions tertii coenae neret 3 2 Interconnection Wiring 3 4 Initial Turn On Procedure 3 6 Operation a bua Section 4 Description of System Operation 4 1 Operation Features dde sas adt desse aut 4 2 Operator Interface ua eee e ote tO NN det 4 3 Manual State Transitions 4 5 Automatic State Transitions 4 6 Auto Restart FeatutG basado tete se 4 7 Isolation Procedure etti sr edet le opo arde 4 7 Turtn On Procedure s n e ettet 4 7 Troubleshooting sss Section 5 5 1 Alarms and Fault Conditions 5 1 Preventative Section 6 Periodic Maintenance 6 1 Isolation Procedure ir ge a ida da 6 2 Pun On Proced re seo prn irre Nec iib a Pea RECO 6 2 AppendiN N neat agent Section 7 Fault Codes saco enean enu eedem uat 7 1 Read Write Parameter Menu
4. ij J Es H UJ no IV t Lg 3 5 PV 225208 Photovoltaic Inverter Operation and Maintenance Manual DOCUMENT 151811 Copyright 2003 Xantrex Technology Inc SECTION 3 xantrex INSTALLATION AND INITIAL TURN ON Smart choice for power INITIAL TURN ON PROCEDURE The following must be performed by an approved Technician The following procedures are intended to verify correct installation and proper operation of the PV 225208 These steps are to be followed sequentially Do not continue if any of the steps or results are unclear Refer to Section 4 for a detailed description of system operation Refer to Section 5 for fault condition descriptions and troubleshooting Refer to Section 7 for detailed system schematics Visual Inspection Isolation Transformer WYE WYE e Verify the isolation transformer circuit breaker is open e Ifa phase rotation meter is available verify proper phase rotation at the line side of the isolation transformer circuit breaker e Insure the neutral on the inverter side is left floating If the inverter side neutral is tied to ground the inverter will not function properly Also insure that the neutral is not bonded to the isolation transformer frame e Verify the inverter 208 VAC conductors are connected to the isolation
5. DOCUMENT 151811 PV 225208 Photovoltaic Inverter 5 5 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 6 xantrex PREVENTATIVE MAINTENANCE Smart choice for power PERIODIC MAINTENANCE Xantrex Technology recommends that the following preventative maintenance be carried out on the PV 225208 Monthly intervals or as required Visually inspect the exterior surfaces for any damage nicks chips exposed base metal and scratches Touch up or recoat using White NISSEN Feltip Paint Marker or equivalent to prevent rust or corrosion Aluminum Extrusion Heatsink Accumulation of dirt and debris on the aluminum extrusion heatsinks and fans will decrease the ability to transfer heat which can cause the PV 225208 to shutdown on over temperature alarms Inspect the aluminum extrusion heatsinks and fans for accumulation of dirt and debris Clean if debris is present Fan Operation Verify proper operation ofthe heatsink cooling fans located above the matrix heatsinks The fans operate when the K1 contactor is closed Remove any debris from the fans Internal Circulation Fan Verify the internal circulation fan is operating whenever there is utility power applied to the PV 225208 Inductor Enclosure Cooling Fans Verify these fans operate whenever the PV 225208 is processing power Six month intervals See Isolation Procedure located on page 6 2 and perform prior to the following Enclosure Sea
6. PV Configuration Operating Temperature Storage Temperature Maximum Ambient Temperature Rating Relative Humidity Elevation Dimensions in inches Weight Enclosure Type UL Listing File 208 VAC 10 12 695 ARMS at low line voltage 60 Hz 0 5 0 7 Hz 225 0 kW 208 VAC 3 Phase 600 VDC 330 600 VDC 330 VDC 710 ADC 1100 ADC Monopolar negative grounded _20 to 50 C 40 to 50 C 50 To 95 Non condensing Derated above 6 600 feet 87 X 102 X 27 Approx 1935 165 NEMA3R File E199356 Dependent on actual AC line voltage Refer to Section 4 for detail on the minimum power tracking voltage If ambient temperature is between 20 to 0 C the unit must be powered up in standby for at least one hour prior to going on line EQUIPMENT SYMBOL Chassis ground Customer supplied system ground connection point This symbol may be found near astud within the main enclosure It is provided as a location to bond the electrical system equipment ground GND DOCUMENT 151811 PV 225208 Photovoltaic Inverter 1 4 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 2 xantrex SAFETY Smart choice for power SAFETY FEATURES The PV 225208 enclosure contains exposed high voltage conductors The enclosure doors should remain locked except during maintenance or testing These servicing instructions are for use by qualified personnel only To reduce the risk of electric
7. S Current through the PV CT has exceeded the allowable limit Possible causes PV system wiring short Inspect the PV power system for short circuits PCU Power Supply is defective Verify 15Vdc sources referenced to analog ground on the PCU There are labeled test points on the PCU circuit board Note There are two isolated 15Vdc power supplies labeled 15Vdc and 15Vdc Drv The 15Vdc Drv power supply provides power for the matrix driver boards only Faulty CT wiring Verify the wiring between the PCU and the CT is properly connected and undam aged Refer to the system schematic in Section 7 CT defective Locate the current transducer for the PV leg in question see control components drawing in Section 7 With a digital multi meter measure the voltage from CT pins 1 2 and 3 to chassis ground Pins 1 and 3 should read approximately 15 and 15Vdc respectively These volt ages are sourced directly from the PCU Pin 2 should read less than 20mV when no current is passing through the CT window If Pin 2 reads greater than 20mV and the supply voltages are on Pins 1 and 3 are correct the CT may be damaged Clear the fault and restart the PCU If the fault is sustained contact your Xantrex Technology distributor for assistance or service 8021 DC Bus Voltage High H The DC Bus voltage has exceeded the maximum allowable limit This fault is generally transient in nature Clear the fault and attempt to restart the PV 225208
8. 225208 Photovoltaic Inverter 3 6 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 3 xantrex INSTALLATION AND INITIAL TURN ON Smart choice for power terminal The value should be the same as at the PV array string disconnect switch It should also be positive Open all PV string disconnect switches Close the isolation transformer circuit breaker Verify 208 VAC voltage across the AC disconnect switch If a phase rotation meter is available verify proper phase rotation at the AC disconnect switch Close the AC disconnect switch Verify 208 VAC voltage across the AC line fuses F1 3 System Verification Upon applying 208 VAC power to the PV 225208 observe the operator interface panel After approxi mately 15 seconds the panel should finish initialization and will probably report a fault condition Remedy any faults reported To clear a fault condition press the lt ENTER gt key twice Ifthe fault message does not change the fault condition is still present Most likely any faults seen at this point will be related to PV 225208 safety switches To disable the door interlock switch with the main enclosure door opened pull the switch shaft out It will lock in its maintenance position Once all faults are cleared the system will read Sleeping or Keyswitch Disable depending on the position of the On Off switch To re enable interlock push the shaft in and close the door Scroll up
9. and will void the product warranty Inverter Side Isolation Transformer Requirements The inverter side of the isolation transformer is configured as a WYE and is rated for 208 VAC The neutral X0 connection on the inverter side must be left floating If the neutral is tied to ground the inverter will be damaged internally at power up Utility Side Isolation Transformer Requirements The utility side windings of the isolation transformer are configured WYE and must match the voltage at the utility inter tie Verify that the transformer supplied matches the voltage requirement Also the transformer is supplied with a neutral connection on the utility side Connection of this utility side neutral does not affect the operation of the inverter Check local jurisdiction for their requirements regarding the connection of this neutral Contact your Xantrex Technology distributor if you have any questions regarding isolation transformer requirements TORQUE AND WIRE GAUGE SPECIFICATIONS The following torque specifications are to be used on all electrical interfaces made during installation of the PV 225208 Torque Table Terminal Block or Bolt Size Torque Setting 3 8 16 Bolt AC 250 in 165 28 2 Nm Terminal Block DC DC amp DC Neutral 275 in 165 31 1 Nm DOCUMENT beer PV 225208 Photovoltaic Inverter 3 1 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 3 xan
10. shock do not perform any servicing other than that specified in the operating instructions unless you are qualified to do so Do not open the cabinet doors if extreme moisture is present rain or heavy dew On Off Switch The PV 225208 incorporates a maintained position on off switch located on the front door of the main enclo sure Under normal conditions the on off switch is in the on position Turning the switch to the off position will initiate a controlled shutdown ofthe PV 225208 and open the A C contactor within the unit The A C contactor cannot be closed unless the switch is in the on position The PV 225208 is prevented from being restarted until the on off switch is turned back to the on position Cycling the on off switch will reset the PV 225208 and attempt to clear any system fault Main Enclosure Door Interlock Switch The front door ofthe PV 225208 main enclosure is equipped with an interlock switch to preclude operation in the event ofthe front door being opened It is required that the PV 225208 main enclosure door handle be padlocked during normal operation The PV 225208 will immediately shutdown if the front door is opened during opera tion Itis required that the PV 225208 main enclosure door handle be padlocked during normal operations Please make sure the unit is powered down and isolated from the utility grid and PV panels prior to opening the front door Allow 5 minutes for any stored potentials to be discharged p
11. system operating state on the first line The second line will display the date and time This is the standard display Refer to Section 7 Appendix for a complete description of all system read write parameters The operator interface display will reset itself to the standard display if there is no input for 30 seconds N Nm SYS Stotus Stand by INV Status and b Standard N Display M Password P ES I aar s Enter 7 8 9 F Password x 2 6 J x 2 Parameter Set Date Time Z JESS ELE Change I m F4 Parameters S Jl Figure 4 1 Figure 4 2 Operator Interface Flow Chart Operator Interface Keypad Viewing Read Write Parameters Values To display any parameter use the A or V keys on the operator interface keypad to scroll through the read write parameters The V key will scroll downward through the menu and the key will scroll upward Upon reaching the end of the menu it will roll over to the beginning PV 225208 Photovoltaic Inverter 4 4 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc DOCUMENT 151811 SECTION 4 xantrex OPERATION Smart choice for power Write parameter values are password protected however they may be viewed in the read parameter menu without entering a password From the standard displa
12. the menu until Enter Read Parameter is displayed Press lt Enter gt then lt 19 gt This is line voltage frequency being read by the PCU It should read 60 0 0 5 0 7 Verify the On Off switch is in the Off position Close the PV array string disconnect switches Close the PV 225208 DC disconnect switch Press lt F2 gt on the operator interface panel If the PV voltage is above the PV Start Voltage setpoint the second line should read Waking Up Once the PV Start Time is exceeded the PV 225208 should transition to Power Tracking The power tracker was previously limited to 25 of PV 225208 rated power Once the PV 225208 has stabilized operation approximately 20 seconds scroll through the main operator interface panel menu Verify all phase voltages and currents are closely balanced Scroll to Enter Read Parameter Press ENTER then lt 17 gt lt ENTER gt to view ground fault current value This value should be equal to or very close to zero Continue to monitor this value as the PV 225208 is commanded to higher power levels Enter the write parameter menu and increase the I PPT Max to 50 Exit the write parameter menu and verify all operating values are proper Continue to increment I PPT Max to 100 Depending upon solar conditions the PV 225208 may not operate at full power If the PV array is not experiencing full sun the PV maximum power tracker will regulate the PV voltage to maintain m
13. transformer e Ifthe wires are marked verify they follow the sequence on the line side of the isolation transformer and circuit breaker e Verify the utility conductors are properly connected to the isolation transformer Visual Inspection PV 225208 e Insure AC and DC disconnect switches are opened e Remove the front cover from the inductor enclosure open the door of the main enclosure and disconnect enclosures and inspect e Verify all wire connections are tight e Inspect the fiber optic cables between the PCU and the matrix driver boards All fibers should be snap locked into their respective receivers transmitters e Insure all connector jack screws on the PCU and matrix driver board are tight e Verify AC phase connections landed at the AC interface enclosure Visual Inspection PV Array Wiring e Verify the PV PV and PV safety ground are isolated from each other The safety ground must not be tied to PV e Verify all PV fuses are installed Initial Power e Turn the On Off switch located on the front door to off e With the DC disconnect switch opened close one of the PV array string disconnect switches e Carefully measure VDC across the PV terminal block The value should be the same as at the PV array string disconnect switch It should also be positive e Close the PV disconnect switch e Carefully measure VDC between the DC contactor negative terminal and the DC switch positive DOCUMENT 151811 PV
14. 225208 will start a PV sleep timer PV T Stop Ifthe PV voltage and power remain below their respective setpoints for the duration ofthe sleep timer the PV 225208 will transition to Sleeping DOCUMENT 151811 PV 225208 Photovoltaic Inverter 4 6 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 4 xantrex OPERATION Smart choice for power Any State Fault Ifthe PV 225208 encounters a fault regardless of operating state it will transition to the Fault state The PV 225208 will remain in this state until the fault condition has been remedied and cleared via the front panel A description of the fault will show on the first line ofthe operator interface LCD The second line ofthe LCD will read Clear Fault To clear a fault press ENTER The PV 225208 will transition to Sleeping If the fault does not clear the fault condition has not been corrected If the Clear Fault mes sage is not shown on the second line ofthe LCD scroll through the read parameter menu with the or V keys until the message appears AUTO RESTART FEATURE In the event of a utility voltage or frequency surge or sag which causes the inverter to shut down the PV 225208 will automatically transition to a fault condition Once the utility recovers for a period of five minutes the PV 225208 will automatically clear the fault then resume normal operation ISOLATION PROCEDURE The following procedure should be
15. 5 245 5400 Smart Choice for Power Fax 1 925 245 1022 XANTREX PV SERIES LIMITED WARRANTY AND REGISTRATION Xantrex Technology warrants all equipment supplied to Customer under this purchase order against defects in workmanship and material for a period of 12 twelve months from delivery provided that the equipment has been operated and maintained in accordance with the service manual provided with the equipment Should Customer give Xantrex written notice of any such defects within the warranty period and Xantrex s inspection confirms the existence of such defects Xantrex shall correct the defects either by repair or replacement at its sole option For wall mounted products generally below 30 kW in rating defective products must be returned to Xantrex or it Authorized Service Center in the original or equivalent packaging The cost of transportation and insurance on items returned for service is at the Customer s expense Return transportation and insurance expense shall be borne by Xantrex For floor mounted inverter products generally 30 kW in rating and above warranty repairs or replacements are performed at the installation site Xantrex s material labor freight and travel living expenses associated with such repair or replacement shall be borne by Xantrex In either case Customer s labor and travel living expense shall be borne by Customer Xantrex will assume no expense liability or responsibility for repairs made by or fo
16. 50826 01 Contact Block NC j spe EE E 10 12 16 17 18 20 m 151808 Sheet 2 of 2 Xantrex Technology Inc PV 225208 Photovoltaic Inverter Major Parts List Assembly Description Enclosure AC Interface PV 225208 Xantrex Technology Assembly 151809 Titem Qty Reference Designator Xantrex Technology Part o 1 151784 01 Fab Enclosure DC Interface PV225208 x 1 151754 01 Fab Panel Encl AC PV225208 a Se T 1 151669 03 Switch Dsenct Non Fuse 600V 800A 4 3 s 1465 03 rusebase Sq Body Fuse Style s 3 R3 785 01 Fes SqBody S0A T0V 6 1 sat ____1 114653 01 mestor Surge MOV 60 seii Bracket Surge Arrestor Mg SS 151809 Sheet 2 of 2 Xantrex Technology Inc PV 225208 Photovoltaic Inverter Major Parts List Assembly Description Enclosure DC Interface PV 225208 Xantrex Technology Assembly 151810 Een On Reterence Desigusior Xantrex Technology Part 1 1 j o 1 151783 01 Fab Enclosure DC Interface PV225208 gt J j 7550 Fab Panel DC PV225208 0 Switch Dsenct Non Fuse 600V 1200A 4 1 EC 71517860 Contactor 3P 750A 120VAC col 151810 Sheet 2 of 2 a a Xantrex Technology Inc xa ntrex 161 G South Vasco Road enr Choice for Pow
17. NONE P 151808 X 1 2 1 I sur 1 or 2 Xantrex Technology Inc PV 225208 Photovoltaic Inverter Major Parts List Assembly Description Main Enclosure Control Components PV 225208 Xantrex Technology Assembly 151808 Ciema Qu Reference Designator Xantrex Technology Part Deseripfion Ss aa x T T T EBUSIUI Enclosure Upper 2 Bay PV225208 3 4 o Assy PCU Wrower Supply PV225208 3 2 o lwnMark SSCS LL Tu uses rranmtonmes 20624 2300A Pese m 1816 01 Transtormer 208 120V S00VA 1 Phase eos former 24V SV no emasen He 2 usse i12090 2 ccs mimoso Capacitor 15uF 1000V Ceramic Dis x 1 1782 01 jCapadtor IKVAR 3P G0V O Pr crosses e A A fran AV Internal termina 26Pes I CC 4 on omeo Fse 6A S00VDE O j 1 5 mena 1745204 23 1 S 1599901 Switch Interlock Door 23 1 T8 1309901 Interlock Door O 24 FPJ E 3 1 _ _____1151750 01 Fab Enclosure Lower 2 Bay PY225208 Fan 10 600 Toy Reference Designator Xantrex Technology Part Enclosure Door Not Shown 39 1 aso AmnECDWKepad j 31 2 Si 1
18. OPERATION and MAINTENANCE MANUAL for MODEL PV 225208 225 kW Grid Tied Photovoltaic Inverter xantrex m iii HI Smart choice for power t xantrex B Document 151811 Revision C November 26 2003 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS THIS MANUAL CONTAINS IMPORTANT INSTRUC TIONS FOR XANTREX TECHNOLOGY MODEL PV 225208 GRID TIED PHOTOVOLTAIC INVERTER THAT SHALL BE FOLLOWED DURING INSTALLATION AND MAINTENANCE Xantrex Technology Inc 161 G SOUTH VASCO ROAD Livermore CA 94550 925 245 5400 Copyright 2003 Xantrex Technology Inc Table of Contents Product Description 1 Section 1 Introduction ER 1 1 Major Components t Osee eec t eem at dede 1 1 Control Components rotae ies e ARR eer 1 2 Interconnection Standards Compliance 1 3 Specificati ns asss 1 4 Equipment deem tiec eter decide th 1 4 Safety uoo issus tute tp d Ended ta esee bts Section 2 a nis Ron a danh Mis nta aq 2 1 Isolation Procedure 2 2 Installation And Initial Section 3 Isolation Transformer Requirements
19. PV peak power tracker designed to maintain maximum power output from the PV array at all times of operation The peak power voltage point varies primarily depending upon the temperature of the PV cells The PV 225208 constantly seeks the optimum voltage and current operating points ofthe PV array to maintain maximum PV power output Upon PV wake up the power tracker will increase power while ramping PV array voltage to the PV maximum power voltage refer ence setpoint PPT V Ref The change rate is governed by the power point ramp time setpoint PPT Ramp T Once the PV voltage is ramped to the reference setpoint the PCU begins to adjust the commanded PV voltage around the reference setpoint seeking maximum PV power The power tracker may only adjust the operating voltage 20 of PPT V Ref The PV maximum power voltage step and update rate are user setable PPT V Step and PPT Rate respectively Ifavailable PV power is above the maximum allowable power level ofthe PV 225208 the power tracker will increase voltage as needed to maintain output power below rated maximum The minimum operating voltage ofthe PV 225208 is 330 VDC The power tracker will not track voltage below this point regardless ofthe reference voltage setpoint Automatic Sleep Test Toward the end of every solar day the PV 225208 automatically determines when to stop producing power dependent upon the output power of the inverter As the net output power ofthe PV 225208 nears z
20. Power Electronics Matrix The power electronics converters are located at the top ofthe PV 225208 Main Enclosure Each matrix is comprised of switching transistors IGBTS transistor gate drive electronics a laminated power bus DC capacitor bank and an aluminum extrusion heat sink with a cooling fan A fan is located above each matrix heatsink The PV array is tied logically to the matrix DC bus via the DC interface enclosure The embedded control unit manages the transfer of power between the DC bus and the utility grid Operator Interface The operator interface is located on the front door ofthe PV 225208 main enclosure It consists of an On Off switch and a keypad with liquid crystal display for control and monitoring purposes All interface components are NEMA 3R rated Refer to Section 4 for detailed operation instructions Inductor Enclosure This enclosure is NEMA 3R rated It contains the necessary filter components to insure the PV 225208 line currents and voltages meet IEEE 519 and UL1741 harmonic distortion requirements Mounted on the right and left side ofthe lower enclosure are inductor fans to allow cooling ofthe line filter components within This enclosure also serves as the mounting base for the PV 225208 main enclosure CONTROL COMPONENTS The following assemblies are contained within the PV 225208 main enclosure as shown in Figure 1 2 For specific control components see Drawing No 151808 in Section 7 Appendix Power Dis
21. RIX TES Inverter Disobled inver idle A N ue by IN A S lt E EN e 4 Automatic P I Ne N 3 P NZ A E Xe ES EL E 74 N SO d N RACKING DY MANUAL CURRENT Inverter Current S a iN Figure 4 3 m PV 225208 State Machine Power Tracking Manual Current Power Tracking or Sleeping Verify the PV manual current parameter I Manual is set to the desired percent of rated Com mand the PV 225208 to Manual Current mode from the operator interface keypad While in the manual current mode the user may change the PV manual current parameter However the user may demand greater current than the capacity ofthe PV array Ifthis causes the PV voltage to drop below the minimum operating voltage 330 Vdc the PV 225208 will transition to Sleeping To exit the Manual Current mode the user must manually command the PV 225208 to either Power Tracking or Sleeping AUTOMATIC STATE TRANSITIONS Sleeping Power Tracking Sleeping The On Off switch must be turned to the On position Once the PV voltage exceeds the PV voltage start setpoint PV V Start the PV 225208 will start a wake up timer PV T Start If the PV voltage remains above the PV start voltage setpoint for the duration ofthe wake up timer the PV 225208 will transition to Power Tracking If the PV power drops below the PV power stop setpoint PV P Stop the PV
22. Technology Inc SECTION 2 xantrex SAFETY Smart choice for power Over Under Voltage and Frequency The over under frequency and voltage detection setpoints have been chosen to be in compliance with IEEE 929 and UL1741 Fk Cni 11 0 lt VAC 137 2 Seconds 137 lt VAC 2 Cycles f lt rated 0 7 6 Cycles f gt rated 0 5 6 Cycles Anti Island Protection A digital phase shift loop PSL circuit is implemented in the DSP inverter controller to prevent Islanding ofthe PV 225208 The DSP continuously makes minor adjustments to the power factor phase angle above and below unity In the event of a utility outage these adjustments destabilize the feedback between the inverter and the remaining load resulting in an over under frequency or voltage condition The PV 225208 then performs an orderly shutdown The fault condition will remain until the utility voltage and frequency have returned to normal for 5 minutes This method has been extensively tested and proven to exceed the requirements of UL 1741 ISOLATION PROCEDURE The following procedure should be followed to de energize the PV 225208 for maintenance The terminals of the PV input may be energized if the arrays are energized In addition allow 5 minutes for all capacitors within the main enclosure to discharge after disconnecting the PV 225208 from AC and DC sources Turn the on off switch to the off position Open the DC interface PV array disconnect sw
23. a 1 2 anchor bolts 3 Install all conduits needed for cable entry in the shaded areas of both AC and DC interface enclo sures as shown in Figure 3 2 See following page POCUMENE telah PV 225208 Photovoltaic Inverter 3 2 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 3 xantrex INSTALLATION AND INITIAL TURN ON Smart choice for power Cable Entry Cable Entry Area PS 756257 5426025006 52256258 600600500 6026075025 5626 4 Figure 3 2 Array Grounding NEC 690 41 42 requires the PV array to be earth grounded The PV 225208 chassis is also bonded to the PV safety ground terminal block Refer to the system schematic in the appendix for further wiring configura tion DOCUMENTS TEINI PV 225208 Photovoltaic Inverter 3 3 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 3 xantrex INSTALLATION AND INITIAL TURN ON Smart choice for power Ground Fault Detection The PV 225208 is equipped with a ground fault detection circuit and current transducer in illustration This circuit is active when the PV array is grounded as described in the previous section In the event of a greater than 10 amp ground fault the PV 225208 will execute an orderly shutdown and annunciates a ground fault at the operator interface The PV 225208 will remain faulted until the ground fault is remedied and cleared at the opera tor interface see section 5 Troubl
24. af ter shutting down the PV 225208 Turn the on off switch to the off position Open the DC interface PV array disconnect switch Open the AC interface disconnect switch Open the isolation transformer circuit breaker Install lockout devices on the isolation transformer circuit breaker and PV disconnect switch O dr TURN ON PROCEDURE Refer to Section 3 for a detailed first time turn on procedure 1 Remove any lockout devices from the isolation transformer circuit breaker and PV disconnect switch Close the isolation transformer circuit breaker Close the AC interface disconnect switch Close the DC interface PV array disconnect switch Turn the on off switch to the on position ee ce pe After a 15 second initialization period and a 5 minute wake up period the PV 225208 will automatically begin power tracking given the PV voltage is greater than the PV start voltage setpoint DOCUMENT 151811 PV 225208 Photovoltaic Inverter 6 2 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 7 xantrex APPENDIX Smart choice for power FAULTS CODES Refer to section 5 for detailed fault code descriptions H Fault s triggered by hardware S Fault s triggered by software paar Fault Source s 0045 Line Matrix Control Failure to Turn On 0046 Line Matrix Control Failure to Turn Off 0061 Line Frequency Too Low READ WRITE PARAMETER MENU Read Only Parameters ees w
25. aximum PV power output To determine if the PV 225208 has reached it s maximum power output enter lt 20 gt at the Enter Read Parameter 0 means the PV 225208 has not reached maximum power contrarily 1 means the PV 225208 has reached maximum power and executed the modified peak power tracker to limit output power The PV 225208 is now fully operational DOCUMENT 151811 PV 225208 Photovoltaic Inverter 3 7 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 3 xantrex INSTALLATION AND INITIAL TURN ON Smart choice for power Power Tracker Fine Tuning e All PV 225208 operating parameters have been set at the factory based upon prior experience with PV arrays Contact your Xantrex Technology distributor for further information e tisrecommended that the PV 225208 be watched during Wake Up and Sleep Test If the PV 225208 cycles between operating and sleeping at either of these times the condition setpoints are not set properly refer to section 4 for detailed description of PV 225208 state transitions The PV225208 should not cycle ifthe setpoints are set properly Some field adjustable parameters are password protected and may only be changed by trained service technicians In particular are parameters relating to utility pro tection setpoints Any changes to these setpoints should be agreed upon by the local utility and the equipment owner Visually inspect the exterior surfac
26. ctive phase shift loop algorithm which destabilizes a balanced load which may otherwise be capable of maintaining inverter operation in the absence of utility voltage This feature has been extensively tested and proven to exceed the safety requirements of UL 1741 and IEEE 929 2000 Ground Fault Detection The PV 225208 is equipped with a ground fault detection circuit and current transducer In the event ofa 10 amp ground fault the PV 225208 will execute an orderly shutdown and annunciates a ground fault at the operator interface See Section 5 Troubleshooting DOCUMENT 151811 PV 225208 Photovoltaic Inverter 4 2 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 4 xantrex OPERATION Smart choice for power Current Imbalance Detection In the event of phase to phase current imbalance of greater than 2096 between phases the inverter will ex ecute an orderly shutdown and annunciate a fault at the operator interface See Section 5 Troubleshooting for further information on this fault condition DC Overvoltage Detection In the event of DC voltage greater than 600Vdc the PV 225208 will execute an orderly shutdown and annunciate a fault to the operator interface If DC voltage remains greater than 600Vdc the PV 225208 may be irreparably damaged See Section 5 troubleshooting for further information on this fault condition Peak Power Tracking The PV 225208 control software employs an active
27. e vu otis nc Current States 0 Initilizing 1 Key Disabled 2 Sleeping sp lead NA N A N A 3 Starting State 4 Power Tracking 5 Manual Current 6 Matrix Test 7 Faulted Error Fault Source s S Mari Overen 8021 DC Bus Voltage Too High H 0000 002E 002F 0031 0032 0040 0042 0045 0046 0061 Goal States 0 Shut Down System Goal State 2 Read N A N A N A l1 Power Tracking 2 Manual Current 3 Matrix Test DOCUMENT taint PV 225208 Photovoltaic Inverter 7 1 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 7 APPENDIX emen mme vus Inverter State 4 Read N A Line B C Voltage 6 Read Vrms ueste s t Ane DE Fr nen s Line Line Cure Current Data Limits N A UA A N A Default N A N A N A xantrex Smart choice for power See Fault Codes Above Inverter States 0 Shut Down 1 Standby 2 Starting 3 Main Setting 4 On Line Line to Line Voltage Line to Line Voltage Line to Line Voltage pe Matrix mE Hs PV PV Voltage m Read VDC VDC E EE Curen eee N A N A N A PV States 0 Shut Down 1 Sleep 2 Wakeup 3 Online 4 Sleep Test Peak Power On Off N A dE Inverter Frequency N A Maximum Inverter y Maximum Line Power DOCUMENT 151811 PV 225208 Photovoltaic Inver
28. e PV 225208 will transition to this goal state If the goal state requested violates the conditions ofthe state machine the PV 225208 will remain in the previous state of operation Setting the Date and Time From the standard display enter the write parameter menu see previous From the Change Goal State prompt scroll up with the key until date time parameter is reached Press the enter key The date time will be replaced with an underscore Enter the proper date time in a six digit format For example The date is entered month day year April 28 2002 is entered 042802 ENTER The time is entered in military hours minutes seconds 4 30 pm is entered 163000 lt ENTER gt If the date time is entered incorrectly the original value will remain Press MENU to return to the standard display MANUAL STATE TRANSITIONS Referto previous sections on commanding PV 225208 goal states Sleeping Matrix Test Sleeping Turn the On Off switch to the Off position Command the PV 225208 to Matrix Test Once the user has completed the test command the PV 225208 to Sleeping If the On Off switch is turned to On while the PV 225208 is in the Matrix Test state the PV 225208 will transition to Sleeping DOCUMENT 151811 PV 225208 Photovoltaic Inverter 4 5 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 4 xantrex OPERATION Smart choice for power ay I P4 N EEPING MAT
29. e necessary 002F Parameter Out Of Date S Software has determined that the system variables within the operator interface panel do not match the ones in the PCU Generally this fault may be cleared and normal operation resumed 0031 Ground Current Fault S The earth safety ground current has exceeded the maximum programmed value Max Gnd Flt I DOCUMENT 151811 PV 225208 Photovoltaic Inverter 5 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 5 xantrex TROUBLESHOOTING Smart choice for power Possible causes e Inspect the PV array for ground faults e CT8 defective Troubleshoot the ground fault CT8 located on the power distribution panel ofthe main enclosure see system schematic drawing in Section 7 using the procedures described in fault Y Y27 0032 PV Overvoltage S The PV voltage has exceeded the maximum programmed limit PV Max Volt Check the PV input voltage at the PV disconnect switch If the voltage is below 600 VDC clear the alarm and restart the PV 225208 0040 In Programming Mode S System is in reload PROM mode 0042 Bad Memory S The static memory test failed upon system initialization This fault is generally transient in nature Attempt to clear the fault by either cycling control power or pressing the black reset button in the lower left corner of the PCU If the fault is sustained replacement or service ofthe PCU will be necessary 0045 L
30. ecommendations of IEEE 929 2000 Refer to both documents for details of these recommendations and test procedures POWER DISTRIBUTION PANEL L TTT AMA TTT A Se VUL Em x SH E PE L F F F E E Figure 1 2 DOCUMENT 151811 PV 225208 Photovoltaic Inverter 1 3 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 1 PRODUCT DESCRIPTION xantrex Smart choice for power SPECIFICATIONS The PV 225208 has been designed for photovoltaic power systems which operate within the following speci fications Application of the PV 225208 in a manner inconsistent with these specifications may cause damage to the PV 225208 and other system components and is a violation of the terms of the warranty Nominal AC Line Voltage Maximum AC Line Current Nominal Line Frequency Continuous AC Output Power PV Maximum Voltage Peak Power Tracking Window PV Minimum Peak Power Tracking Voltage PV Maximum Operating Current Maximum PV Array Short Circuit Current
31. er Livermore CA USA 94550 SOURCE CONTROL SPECIFICATION ECO DATE DRAWN p Gc ENGR __ C _ PART DESCRIPTION XFMR 225KVA 3 PHASE 60Hz 208Y MANUFACTURER SQUARE D MFG S PART NO XANTREX PART NO 208Y208 2257956373 Custom Built 1 151812 01 208Y480 2257956374 Custom Built 1 151812 02 DATA SOURCE nttp www squared com L9LSL 41 0 1041 0 49 50 1257 0 H2 H3 4 N H3 PD pZ 22 p7 P NNNNNN MAXIMUM SIDE AREA FOR CUSTOMER CONDUIT ENTRANCE IRANSFORMER SPECIFICATIONS HIGH VOLTAGE 480Y 277 V iZ LOW VOLTAGE 208Y 20 NEMA 2 VENTILATED ENCLOSURE A0 1910 BS 860_KG MAXIMUM BOTTOM AREA a CONDUIT ENTRANCE MINIMUM CLEARANCE OF 6 MUST BE 29 dB SOUND LEVEL MAINTAINED BETWEEN VENT OPENINGS 40 C AMBIENT AND OTHER OBSTRUCTIONS ECECIROSTATS oS IED USE WEATHERSHIELD CAT WS382 FOR NEMA 3R THE DIMENSIONS ON THIS DRAWING ARE SUBJECT TO CHANGE PLEASE VERIFY IF DIMENSIONS ARE CRITICAL I 225 KVA GENERAL PURPOSE TRANSFORMER ve 4 Places CATALOG NO 225TQ56374R1 DRAWN BY BA A Q56374R1 A 4
32. erly shutdown and remain faulted until the fault is cleared manually or automatically In general the operator should respond to any PV 225208 fault as follows 1 The source of the fault should be sought by referring to the following chart 2 Rectify the fault condition and attempt to clear the fault by cycling the on off switch 3 Ifthe problem cannot be corrected note and write down the fault code and description then contact your Xantrex Technology distributor for assistance or service ALARM AND FAULT CONDITIONS Lethal energy may be stored within each matrix assembly Use extreme caution when troubleshooting After disconnect all sources of power wait at least 5 minutes for internal capacitors to discharge H Fault triggered by hardware S Fault triggered by software 0000 No Faults No fault conditions are detected 002C 012C Matrix Over Temperature S The temperature ofthe matrix 002C Matrix 1 012C Matrix 2 aluminum heat sink exceeded 85 C Possible causes e External cooling fan inoperable e Air flow on heat sink impeded due to accumulation of debris e Operation above rated ambient temperature for an extended period of time 002E State Machine Failure S Software has encountered an undefined state Attempt to clear the fault by either cycling control power or pressing the black reset button in the lower left corner of the PCU If the fault is sustained replacement or service ofthe PCU will b
33. ero a timer is started to allow the inverter to ride through any brief irradiance reductions OPERATOR INTERFACE The operator interface display consists of two main menu levels The read parameter menu and the write parameter menu The read parameter menu consists of all system parameters the date and time These can be viewed any time the PV 225208 has control power The write parameter menu consists of a goal state sub menu and all system write parameters The write parameter menu is password protected and may only be changed by trained service technicians In particular are parameters relating to utility protection setpoints These have been set in the factory to DOCUMENT 151811 PV 225208 Photovoltaic Inverter 4 3 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc xantrex Smart choice for power SECTION 4 OPERATION the limits mandated by UL1741 Any changes to these setpoints should be agreed upon by the local utility and the equipment owner The ability to adjust the voltage and frequency setpoints with respect to the actual utility voltage and frequency has been provided as a simulation tool to verify the PV 225208 accurately detects and responds to a utility excursion This test should only be performed by a trained service technician It is possible to adjust the setpoints in a manner that will prevent the PV 225208 from functioning Upon system power up the operator interface LCD will display the
34. es for any damage nicks chips exposed base metal and scratches that may have occurred during shipment or installation Touch up or recoat using White NISSEN Feltip Paint Marker or equivalent to prevent rust or corrosion DOCUMENT 151811 PV 225208 Photovoltaic Inverter 3 8 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 4 xantrex OPERATION Smart choice for power DESCRIPTION OF SYSTEM OPERATION Overview The PV 225208 is a fully automated grid tied photovoltaic inverter Manual interaction or control ofthe inverter is necessary only in the event ofa system fault The following conditions govern PV 225208 operation e Stable utility voltage and frequency must be present for all states of operation e Fault states are automatic from any state of operation A fault will cause the PV 225208 to immediately stop processing all power The fault condition will be reported to the operator interface e The on off switch located on the front door ofthe PV 225208 must be switched to the on position for all operating states e Cycling the on off switch attempts to clear any system faults and return the PV 225208 to normal opera tion Operating States A state machine implemented within the PCU control software governs the operation ofthe PV225208 There are five steady state operating states and numerous intermediate transition states The intermediate transition states provide an orderly progress
35. eshooting The input and output circuits are isolated from the enclosure and the system grounding if required by sec tions 690 41 690 42 and 690 43 of the National Electric Code ANSI NFPA 70 is the responsibility of the in staller INTERCONNECTION WIRING To reduce the risk of fire connect only to a circuit provided with 800 amperes 208VAC or 400 amperes 480VAC maximum branch circuit overcurrent protec tion in accordance with the National Electrical Code ANSI AFPA 70 The following wires for connecting the PV 225208 to external devices are not provided by Xantrex Technolo gy See installation diagram on pages 3 5 e Connect 3 Phase 208 VAC inverter output AC Disconnect switch to terminals of the 208 VAC inverter side of isolation transformer The neutral on the inverter side of the isolation transformer must be left floating Ground loops will exist when the inverter starts switching which will cause the inverter to shut down due to phase over currents and will result in damage to the PV 225208 Also insure that this neutral is not bonded to the isolation transformer frame Be sure to maintain proper phasing as shown in the system schematic found in Section 7 e Connect Isolation transformer grid side terminals 1 2 and 3 to line circuit breaker Be sure to maintain proper phasing as shown in the system schematic found in Section 7 PV frame ground to ground terminal block TB3 Connect PV PV and PV Safety gr
36. followed to de energize the PV 225208 for maintenance Turn the On Off switch to the Off position Open the DC interface PV array disconnect switch Open the AC interface disconnect switch Open the isolation transformer circuit breaker Install lockout devices on the isolation transformer circuit breaker and PV disconnect switch mo e pem The terminals of the PV input may be energized if the arrays are energized In addi tion allow 5 minutes for all capacitors within the main enclosure to discharge after disconnecting the PV 225208 from AC and DC sources TURN ON PROCEDURE Refer to Section 3 for a detailed first time turn on procedure 1 Remove any lockout devices from the isolation transformer circuit breaker and PV disconnect switch Close the isolation transformer circuit breaker Close the AC interface disconnect switch Close DC interface PV array disconnect switch Turn the On Off switch to the On position p duc pa After a 15 second initialization period the PV 225208 will automatically transition to Waking Up given the PV voltage is greater than the PV V Start setpoint DOCUMENT 151811 PV 225208 Photovoltaic Inverter 4 7 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 5 xantrex TROUBLESHOOTING Smart choice for power GENERAL In the event ofa fault the PV 225208 will annunciate the condition at the operator interface The PV 225208 willexecute an ord
37. gormiry ass Conformity Assessment Services 3013MNBK E mail Timothy P Zgonena us ul cem A not for profit organization dedicated to public safety an committed to quality service CO REPRESENTS QUA WIRE BUNDLE ALL CONTROL WIRE 60IV CLASS 1 WIRE PASS THROUGH ALL CT S oe Elsa Px3268MCH 2 262MCM BUS BAR me FORCES T PATE NES ENCR BY 5l SCHEMATIC L SYSTEM PV225208 wee P 151828 T a mmo We wc C T 93 v z UNNERSAL DRNER BOARD ROTOR SIDE LINE 2 DEVICES m 3 T WWW zs 7261 jam TL UNIVERSAL DRIVER BOARD LINE SIDE LINE 1 DEVICES AINA WANNA INNA LUI LU UU 5948397261 gu BL 151828 E Tm z wr 7 ScVlSl NOTES UNLESS OTHERWISE SPECIFIED I DO NOT LIFT INVERTER FROM MATRIX LIFTING EYE BRACKETS THE PURPOSE OF THE BRACKETS ARE FOR LIFTING THE MATRIX ONLY 2 APPROX WEIGHT 1935 LBS mu amu s mE MOUNTING HOLES AEOS xantrex y Fil ENGR E ENVELOPE GRID TIED LLL INVERTER PV225208 wed BP 151807 A ar Sar ro ey gt HT 1 or 1 EL Tee ee 0 Laco 1s2ju 1 of ce T T L mm SEE SEPARATE BILL OF MATERIAL repe AL DENSIS N 3 ENGR By ENCLOSURE MAIN CONTROL P COMPONENTS PV 225208 Gi OLY ber mE dr 16
38. ine Matrix Failure to Turn On S 0046 Line Matrix Failure to Turn Off S Software was not able turn on or turn off the indicated switching matrix Attempt to clear the fault by either cycling control power or pressing the black reset button in the lower left corner of the PCU If the fault is sustained replacement or service ofthe PCU will be necessary 0061 Line AC Frequency Too Low S The AC line frequency fell below the allowable limit This fault is self clearing Once the utility frequency has recovered within the acceptable operating range the PV 225208 will automatically clear this fault and resume normal operation after 5 minutes If the fault will not clear verify the adjustable setpoint is below the actual utility frequency Ifthe fault is sustained contact your Xantrex Technology distributor for assistance or service 0062 Line AC Frequency Too High S The AC frequency exceeded the allowable limit This fault is self clearing Once the utility frequency has recovered within the acceptable operating range the PV 225208 will automatically clear this fault and resume normal operation after 5 minutes If the fault will not clear verify the adjustable setpoint is above the actual utility frequency If the fault is sustained contact your Xantrex Technology distributor for assistance or service DOCUMENT 151811 PV 225208 Photovoltaic Inverter 5 2 Operation and Maintenance Manual Copyright 2003 Xantrex Technology I
39. ion from one operating state to the next The user has the ability to manually transition the PV 225208 between operating states from the operator interface keypad Manual transitions are initiated by entering a Goal State where the goal state is the desired operating state Given all applicable system parameters are within acceptable limits and the request is valid within the state machine the PV 225208 will initiate the proper sequence of operations necessary to progress to the requested goal state Refer to Figure 4 3 for a description of valid state transitions Shutdown The line interface controller is idle The PCU monitors the status of the PV array and utility grid waiting in standby until the PV array is available to produce power to the grid Fault The PV 225208 has encountered a fault condition When this happens regardless of the PV 225208 state of operation the PV 225208 will stop processing all power and execute an orderly system shutdown A description ofthe fault and fault code will appear on the operator interface LCD The Fault state may be cleared from the keypad once the cause ofthe fault has been corrected See Section 5 fora complete description of all fault codes Manual Current This operating state is provided to evaluate the existing PV array V I character istics The PV controller regulates a constant amount of PV current as commanded by the user from the operator interface keypad up to the PV current
40. itch Open the AC interface disconnect switch Open the isolation transformer circuit breaker Install lockout devices on the isolation transformer circuit breaker and PV disconnect switch P px j H U F M rd DOCUMENT 151811 PV 225208 Photovoltaic Inverter 2 2 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 3 xantrex INSTALLATION AND INITIAL TURN ON Smart choice for power ISOLATION TRANSFORMER REQUIREMENTS The PV 225208 UL 1741 certification requires the use of a Xantrex Technology specified 225 WYE WYE isolation transformer between the inverter AC output and the utility interconnection See Appendix in Section 7 for transformer dimensions and specifications This custom 225 kVA isolation transformer is not part of the 225 kVA inverter but can be ordered as a separate item If maintaining the listing to UL1741 is not a requirement for your application contact Xantrex Technology for a fact sheet describing the installation op tions and precautions for installing this inverter in a photovoltaic system that does not require UL1741 compli ance Xantrex Technology requires installing an isolation transformer between the PV 225208 inverter and the point of utility interconnection Failure to do so could result in catastrophic damage to the PV 225208 as well as the utility distribution system
41. le causes e AC system wiring short Inspect the AC power system for short circuits e PCU Power Supply is defective Verify 15Vdc sources referenced to analog ground on the PCU There are labeled test points on the PCU circuit board Note There are two isolated 15Vdc power supplies labeled 15Vdc and 15Vdc Drv The 15Vdc Drv power supply provides power for the matrix driver boards only e Faulty CT wiring Verify the wiring between the PCU power supply and the CT is properly con nected and undamaged Refer to page 2 ofthe system schematic in Section 7 e CT defective Locate the current transducer for the matrix and phase in question see control com ponents drawing in Section 7 With a digital multi meter measure the voltage from CT pins 1 2 and 3 to chassis ground Pins 1 and 3 should read approximately 15 and 15Vdc respectively These voltages are sourced directly from the PCU Pin 2 should read less than 20mV when no current is passing through the CT window If Pin 2 reads greater than 20mV and the supply voltages are on DOCUMENT 151811 PV 225208 Photovoltaic Inverter 5 4 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 5 xantrex TROUBLESHOOTING Smart choice for power Pins 1 and 3 are correct the CT may be damaged Clear the fault and restart the PCU If the fault is sustained contact your Xantrex Technology distributor for assistance or service 0828 PV Over Current Fault
42. limit of the PV 225208 Ifthe user commands more PV current than is available the DC bus voltage will drop below the minimum bus voltage level and the PV 225208 will return to Sleeping mode Matrix Test This operating state is provided to verify proper operation of the matrix and associ ated control electronics There is no power transfer between the PV and utility in this mode Power Tracking This is the standard operating state of the PV 225208 The PV 225208 maximum power tracker will demand maximum power from the PV array given sufficient PV irradiance DOCUMENT 151811 PV 225208 Photovoltaic Inverter 4 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 4 xantrex OPERATION Smart choice for power The user should be aware of the following conditions governing PV 225208 state transitions Utility power must be present for all states of operation Fault states are automatic from any state of operation A fault will cause the PV 225208 to immediately stop processing all power The fault condition will be reported to the operator interface LCD Most PV 225208 faults are latching and must be cleared at the operator interface keypad before transitioning to another operating state The On Off switch located on the front door ofthe PV 225208 must be in the On position for all operating states except Matrix Test in which case it must be in the Off position OPERATION FEATURES Fixed U
43. ls Inspect the enclosure access panel seal If damaged replace with equivalent closed cell foam gasket Call your Xantrex Technology distributor for factory replacements or specifications Electrical Connections Inspect the condition ofall wiring within the PV 225208 Inspect all wire crimps and connections for damage caused from high temperature Check for corrosion Replace any damaged wires Verify all mechanical connections are sufficiently tightened Verify all conduction surfaces are clean and free of corrosion DOCUMENT 151811 PV 225208 Photovoltaic Inverter 6 1 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 6 xantrex PREVENTATIVE MAINTENANCE Smart choice for power Mechanical electrical connections will loosen over time This is caused primarily by thermal cycling during normal operation As connections loosen electrical impedance will increase at the connection eventually leading to fire and component damage It is critical to check all electrical connections every six months Inductor Enclosure Access the inductor enclosure and remove any accumulated dirt and debris Vacuum enclosure whenever dust or dirt is present ISOLATION PROCEDURE The following procedure should be followed to de energize the PV 225208 for maintenance The terminals of the PV input may be energized if the arrays are energized In addition allow 5 minutes for all capacitors within the enclosure to discharge
44. nc SECTION 5 xantrex TROUBLESHOOTING Smart choice for power 0063 AC Voltage Too Low S The AC Inverter voltage fell below the minimum programmed limit Min AC Volt This problem was caused by the utility Clear the fault and restart the PV 225208 Possible causes High momentary load which forces the inverter to current limit Fuses F1 F2 F3 F4 F5 or F6 blown SSR 1 inoperable Contactor K1 inoperable Utility voltage fell below the allowable limit This fault is self clearing Once the utility voltage has recovered within the acceptable operating range the PV 225208 will automatically clear this fault and resume normal operation after 5 minutes Ifthe fault will not clear verify the adjustable setpoint is below the actual utility voltage If the fault is sustained contact your Xantrex Technology distributor for assistance or service 0064 AC Voltage Too High S The inverter controller voltage exceeded the maximum programmed limit Max AC Volt Possible causes e SSR 1 inoperable e Contactor K1 inoperable e Utility voltage exceeded the allowable limit This fault is self clearing Once the utility voltage has recovered within the acceptable operating range the PV 225208 will automatically clear this fault and resume normal operation after 5 minutes Ifthe fault will not clear verify the adjustable setpoint is above the actual utility voltage If the fault is sustained contact your Xantrex Technology distribu
45. nity Power Factor Operation The Xantrex PV Series grid tied inverters maintain unity power factor during operation The control software constantly senses utility voltage and constructs the output current waveform to match the utility voltage The PV line of inverters are not capable of operation without the presence of normal utility voltage nor are they capable of varying the output power factor off unity Utility Voltage Frequency Fault Automatic Reset In the event ofa utility voltage or frequency excursion outside of preset limits the PV 225208 will stop operation and annunciate a fault at the operator interface Once the utility voltage has stabilized within accept able limits for a period of at least five minutes the PV 225208 will automatically clear the fault and resume normal operation Voltage and frequency fault setpoints are detailed later in this section Active Island Detection Much concern has been given to the possibility of an inverter causing a utility island condition during a utility power outage An island condition is defined as grid tied inverter maintaining operation and supporting a load that has been isolated from the utility power source This requires the load to be closely balanced to the output power of the inverter as well as having a resonant frequency close to 60Hz Needless to say this is an extremely remote possibility To insure this condition does not occur the PV 225208 control software contains an a
46. ound to the DC interface enclosure s designated termina tions See Section 7 for further detail When connecting external AC wires to the PV 225208 positive phasing sequence must be maintained throughout the installation process Refer to the System Sche matic in Section 7 of this manual for proper phasing convention Install all wires listed above Refer to the Appendix in Section 7 for layout of the AC and DC inter face enclosures Refer to the system schematic in Section 7 for more detailed terminal locations DOCUMENT T518 PV 225208 Photovoltaic Inverter 3 4 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 3 Smart choice for power INSTALLATION AND INITIAL TURN ON T SUMIM sissuu T LE JouLmjsueA ES uonejosp puno r5 uonnqrusiq T u UJ IEAA ASUS o J93 12AU _ 80CSCC Ad I ii MIR h ES 5 I Pas s
47. ow Up Service Program to the above pxoducts which are constructed as described below Similar to rhe subject model which was submitted to UL for this investigation the UL rec ris covering the product will be in the Follou Up Services Inspection Procedure File E19935 Volumel To provide the manufacturer with the intended authorization to use the UL Mark the addr sec must send a copy of this Notice and all attached marerial to each manufacturing iucation as currently authorized in tha appropriate UL File Procedure This authorization is effective for 90 days only from the date of this Notice and only f products at the indicated manufacturing locations Records covering the product are now being prepared and will be sent to the indicated manufacturing locations in the near future lease note that Follow Up Services Procedures are sent to the manufacturers only unless the Applicant specifically requests this document Products produced which bear the UL Mark shall be identical to those evaluated by UL az found to comply with UL s requirements If changes in construction are discovered authorization to use the UL Mark may be withdrawn and products that bear the UL Mark may to be revised in the field or at the manufacturer s facility to bring them into complia with UL s requirements Respectfully Reviewed by ter T Timothy P Zgonena Ext 43051 Senior Engineer f g Associate Staff Conr
48. r Customer without written authority from Xantrex Xantrex shall not be responsible for any consequential incidental or similar damages THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Project Name Customer PO Inverter Serial Delivery Date Xantrex Authorized Signature Customer Authorized Signature Date Date Received 8 9 02 10 26AM 847 272 9718 gt Konica Fax 9825 Page 1 08 09 02 12 37 FAX 847 272 9718 UND LAB INC 333 Pfingsten Roa Northbrook COc2 2096 United States County Code 1j 847 272 8800 FAX No 847 272 8124 httpJ www ul com 8 Underwrilers Laboratories Inc e NOTICE OF AUTHORIZATION TO APPLY THE UL MARK Northbrook Off ce August 9 2002 Xantrex Technology Inc Atta Mr Doug Blodgett PO BOX 5049 LIVERMORE CA 94551 Our Reference File E199356 Project 02NK19944 Subject Model PV225 Pv Grid Tied Three Phase Utility Interactive Inverter Provided With An Evternal Isolation Transformer Dear Mr Blodgett We have completed our engineering investigation under the above project number and find a products comply with the applicable requirements This letter temporarily supplements the UL Follow Up Services Inspection Procedure and as authorization to apply the UL Listing Mark only at the factory under UL s Foll
49. rior to opening the unit Disconnect Switches Both AC amp DC switches are equipped with lockout hasps for personnel safety The switch enclosure door will not open while the PV 225208 is running In addition the switch handle and shaft provide a door interlock The door cannot be opened when the switch is in the on position The PV disconnect switch is equipped with an auxiliary contact block which enables the switch to be used as a load break PV disconnect In the event a disconnect switch is opened while the PV 225208 is processing power from the PV array the contact block will signal the PCU to stop processing power before the switch opens Fault Reporting Any fault conditions are reported to the operator interface The LCD will display a text description of the fault Refer to Section 5 Troubleshooting for detailed descriptions of system fault conditions PV Ground Fault Detection The PV 225208 is equipped with ground fault detection circuitry see section 3 installation and section 7 system schematic for further detail Upon detection of 10 amps of ground fault current the PV 225208 executes an orderly shutdown and annunciates a ground fault at the operator interface The PV 225208 will remain faulted until the ground fault is remedied and cleared at the operator interface see section 5 trouble shooting snn r DOCUMENT 151811 PV 225208 Photovoltaic Inverter 2 Operation and Maintenance Manual Copyright 2003 Xantrex
50. tail XX25 XX26 Line Gate Drive Fault S One of the IGBT gate drive boards signaled the PCU that there was a fault The second two digits refer to which matrix has the fault X X25 refers to matrix 1 and X X26 refers to matrix 2 The particular device at which the fault was detected is indicated by the first two digits ofthe fault code as follows XX Ol PhaseA 02 Phase A 04 Phase B 08 Phase B 10 Phase C 20 Phase C If more than one phase faults simultaneously the error code will contain the summation of phase fault values For example if phase A and B of matrix 1 fault simultaneously the error will read 0525 Make sure the fiber optics for the device and matrix in question are properly connected to the driver board Similarly make sure the fiber is properly connected at the PCU Clear the fault and restart the PV 225208 Ifthe fault is sustained contact your Xantrex Technology distributor for assistance or service YY27 Y Y28 Line Over Current Fault S Current in one phase ofthe matrix has exceeded the allowable limit Y Y27 refers to matrix 1 and Y Y28 refers to matrix2 The faulted phase is indicated by the first two digits ofthe fault code as follows 01 02 Phase B 04 Phase If more than one phase faults simultaneously the error code will contain the summation of phase fault values For example if phase A and C of matrix 1 fault simultaneously the error will read 0527 Possib
51. ter Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 7 xantrex APPENDIX Smart choice for power ree m ws one Dawn ocn Maximum Inverter Maximum Line Power Recorded by PCU Maximum Line Current Recorded by PCU Maximum PV Current Commanded PV Available to be Current NS n Commanded by the PV Power Tracker Maximum AC Voltage 32 Vols 190 V 229 229 Maximum AC Voltage fault setpoint Minimum AC Voltage 33 Write Vers 183 V 220 aga AC Voltage fault setpoint Maximum AC 59 3 lt Hz lt Maximum AC Frequency Minimum AC 59 3 lt Hz lt Minimum AC Frequency Maximum Ground Ground fault current PPT V Ref 37 Write Volts 300 lt v 600 400 Peak Power Tracker Reference Voltage up voltage wake up PV P Stop abel dew veces jd pontio pegu 10 0 sleep test timer nverter trips off line within two cycles on over under voltage and frequency faults It should be noted that the voltage trip limits can be up to 196 off from the actual grid voltage at full load due to the 196 regulation ofthe isolation transformer The PV 225208 uses phase to phase voltage measurement to detect the under over voltage trip limits For an unbalanced single phase voltage variation of 10 and 12 as per UL1741 the trip limits must be set to 220V for maximum AC voltage and 193V for minimum AC voltage Consult your local utility for their specific req
52. tor for assistance or service 012A Interrupt Time Out S The PCU was not able to service the interrupt for approximately 1 second Attempt to clear the fault and restart the PV 225208 by pressing the black reset button on the lower left corner of the PCU If the fault is sustained replacement or service of the PCU will be necessary 0230 Door Interlock Switch Open H The door interlock lock switch located in the inside upper left corner of the main enclosure door is open If the switch is closed and the fault still registers on the front panel isolate the PV 225208 from external power then e Verify continuity across the switch contact block while the switch is closed e Verify continuity between PCU J2 5 and PCU J3 3 0430 PV Auxiliary Switch Open DOCUMENT 151811 PV 225208 Photovoltaic Inverter 5 3 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 5 xantrex TROUBLESHOOTING Smart choice for power The dry contact auxiliary switch mounted to the PV disconnect switch has been toggled The auxiliary switch should be opened when the PV disconnect switch is open If the fault will not clear when the PV disconnect switch is closed e Isolate PV 225208 from utility power e Close PV disconnect switch and check continuity between PCU J3 3 and PCU J2 7 If there is no continuity inspect wiring between the PCU and the auxiliary switch see page 2 of the system schematic for further de
53. trex INSTALLATION AND INITIAL TURN ON Smart choice for power The following table shows acceptable wire gauges to be connected to the PV 225208 AC and DC inputs Wire Gauge Table Termination Wire Range AWG Up to 4 600MCM 2 Conductors Per Phase Up to 8 600MCM 2 Conductors for each and Up to 2 350MCM 6 Conductors Compression Lug AC Compression Lug DC and DC Terminal Block DC Neutral INSTALLATION INSTRUCTIONS CAUTION All wiring methods shall be in accordance with the National Electrical Code ANSI NFPA 70 All power conductors interfacing to the PV 225208 should be sized in accordance with the National Electric Code ANSI NFPA 70 and local codes Large gauge wire must have a minimum bend radius dependent upon the wire gauge refer to the National Electric Code Article 373 6B Take care to keep the wire bundles away from any sharp edges which may damage wire insulation over time Xantrex Technology recommends using 250 MCM 105 degrees C minimum copper wire for all connections to the PV 225208 Ventilation Considerations Maintain a minimum of 12 clearance in back front and both sides of the PV 225208 for proper cooling fan operation Installation 1 Move the PV 225208 into place Lift the PV 225208 from beneath the lower enclosure with a forklift as shown in Figure 3 1 See following page 2 Anchor the lower enclosure feet to the floor with
54. tribution Panel This panel contains many of the Electro mechanical protective and control power components neces sary to support the operation ofthe PV 225208 DOCUMENT 151811 PV 225208 Photovoltaic Inverter 1 2 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 1 xantrex PRODUCT DESCRIPTION Smart choice for power Power Control Unit PCU The PCU is a Digital Signal Processor DSP based control board that performs numerous control and diagnostic functions associated with PV 225208 operation Its most significant tasks are control of PV 225208 electromechanical components and power electronics converters signal conditioning for high voltage signal inputs and communication with the operator interface panel and system sensors The PCU also contains the necessary DC power supplies to support its operation INTERCONNECTION STANDARDS COMPLIANCE The PV 225208 has been tested and listed by Underwriters Laboratories to be in compliance with UL1741 Static Inverters And Charge Controllers For Use In Photovoltaic Power Systems as well as IEEE 929 2000 Recommended Practice For Utility Interface Of Photovoltaic PV Systems IEEE 929 2000 provides guidance regarding equipment and functions necessary to ensure compatible operation of photovoltaic systems which are connected in parallel with the electric utility UL1741 1s the standard applied by Underwriters Laboratory to the PV 225208 to verify it meets the r
55. uirement DOCUMENT 151811 PV 225208 Photovoltaic Inverter 7 3 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc SECTION 7 xantrex APPENDIX Smart choice for power Parameters 1D Units Data Limits Default Descriptions IPPTMax 42 write 0 lt lt 100 pee walle PV power tracker mode current IMamal 43 write 0 lt lt 100 PV manual mode current Turns power tracker on or off If off the power tracker will PPT Enable 44 Write N A 0 or 1 regulate voltage at the reference setpoint 0 Off 1 On PPT Rate 0 1 lt T lt 10 0 Power tracker update rate PPT V Step vols 0 v 10 0 Voltage perturbation step of power tracker WARRANTY AND CERTIFICATION Xantrex Inverter Warranty Registration Underwriters Laboratories Compliance Of Standard UL1741 DRAWINGS LIST 151828 Schematic System Grid Tied PV Inverter PV 225208 151807 Envelope Drawing Grid Tied Inverter PV 225208 151808 Enclosure Main Control Components PV 225208 151809 Enclosure AC Interface PV 225208 151810 Enclosure DC Interface PV 225208 151812 Transformer 225 kVA 3 Pole 60 Hz 98 Efficient 208Y 120 or 480Y 277 DOCUMENT TOTSUE PV 225208 Photovoltaic Inverter 7 4 Operation and Maintenance Manual Copyright 2003 Xantrex Technology Inc Xantrex Technology Inc Distributed Power Markets X ntrex 161G South Vasco Road Livermore CA 94550 USA Phone 1 92
56. y press the key The display will read Enter Parameter ID Enter the desired write parameter ID then press the Enter Refer to Section 7 Appendix for a table of all read write parameters and their descriptions Changing Write Parameter Values From the standard display or anywhere in the read parameter menu you may access the write param eter menu by pressing the MENU key This will ask for a password Enter the password and press the lt ENTER gt button Use the or V key on the operator interface keypad to scroll through the write parameters To change the displayed parameter press the lt ENTER gt button Enter the desired value and press lt ENTER gt If the value entered is outside the acceptable range for the parameter the original value will remain To leave the write parameter menu press the MENU button repeatedly until the standard display shows on the LCD Refer to Section 7 Appendix for a table of all read write parameters and their descriptions Commanding Goal State Changes From the standard display press the lt MENU gt key This will ask for a password Enter the password and press the lt ENTER gt button The LCD will prompt Change Goal State Press lt ENTER gt again The goal state menu will show on the LCD Scroll through the goal state menu with the or V keys until the desired goal state is reached Press ENTER The LCD will prompt Press F4 to Confirm Press lt F4 gt and th
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