PV6 Inverter
Contents
1. 2005 EN 61000 6 3 2007 Load Curve a ae pee a a ii Ean Power SOW 100 Pern Voltage y ne TJUV Sil q v a5 Ts Note Test equipment tolerances and deviation between products may cause the test results to be slightly different 25 Produced by UTICA www utica sg 12 Mechanical requirements 12 1 Dimension Dimension WxDxH mm 429 8 x 171 3 x 531 8 12 2 Weight 12 3 Installation method Ctovteiensig T 12 4 Connection of wires DC side pair s MC connectors Multibrainded 6 0 8 0 mmz Solidcore 6 0 8 0 mm2 13 Troubleshooting In most situations the Utica inverter requires very little service However if Utica is not able to work perfectly please refer to the following instructions before calling your local dealer Should any problems arise the red Fault LED on the front panel turns on and the LCD displays the relevant information Please refer to the following table for a list of potential problems and their solutions 26 Produced by UTICA www utica sg Display Possible actions Check the impedance is between PV amp PV and the PV Inverter is Isolation Fault earthed The impedance must be greater than S5MQ If the problem persists please call service The ground current is too high Unplug the inputs from the PV generator and check the peripheral AC system Ground I Fault After the cause is cleared re pl2. continuously start up and shut down This is due to insufficient power generated to operate the control circuits 14 Preventative maintenance Although P V Inverter requires very little maintenance the following inspections at regularly would help to ensure PV Inverter operation with optimal performance 14 1 Visual Inspection Check the inverter and cables for any signs of external damage Contact your installer immediately if you find any defects Do not carry out any repairs on your own 14 2 Checking and Maintenance Asking your installer to check for proper inverter operation at regularly is the measure we suggested for preventative maintenance The following check is the key 1 Check If the fan guard is covered with debris or dust get rid of it if find any 2 Check heat sink to ensure no barrier blocking its air flow 3 Inspect for corrosion especially at connecting point 4 Verify all connections are firmly tightened periodically 5 Clean the exterior of the unit periodically with a damp cloth to prevent accumulation of dust and dirt Keep warranty label intact anyhow 6 To get optimal performance PV panel cleaning periodically would also be essential due to it is prone to dust and dirt accumulation _ Before cleaning PV panel or Inverter be sure to switch off AC power and Bee double check LCD of Inverter displaying No Utility cleaning shall be restricted to the exterior surface ase To avoid a
3. vertical surface which can adequately support the weight of the Inverter Do not install the Inverter at an angle 10 Produced by UTICA www utica sg 2 The Grid PV Inverter requires adequate cooling space Allow at least 50cm space above and below the Inverter z Fa Fa F F j A Fi Fi D Fa F F Z F Fa F Fi E oy af Fee y F F ac Minimun space 50 cm UTICA Minimun space Minimun space 30cm 30 cm 3 Use the mounting frame as a template drill 3 or 4 holes according to the installation requirements as shown in the figures 4 Fix the mounting frame as shown 5 Hang the Inverter on the mounting frame 4 Pes Outer Holes 4 Pes Snap Bushings 4Pcs Screws DIMENSIONS OF OPENING MOUNTING BRACKET 11 Produced by UTICA www utica sg 6 Check the installation conditions a Check the upper straps of the Inverter making sure they fit perfectly into the bracket b Insert the safety lock screws on the bottom leg to secure the Inverter hi 3 Safty Lock Screw Check the Inverter is secure by trying to lift the Inverter vertically from the bracket Select the installation location such that the Inverter display can be viewed easily Choose a strong mounting wall to prevent vibration whilst the PV Inverter is operating Produced by UTICA www utica sg 6 3 Installation Comply with all necessary national and international installation standards espe
4. PV open voltage System start up voltage Typical 150 V Initial feeding voltage 180 V 100V 130 550 V 150 500 V Shutdown voltage Working voltage range MPPT voltage range MPPT efficiency gt 99 Number of MPP tracker s Max DC current per tracker 27 5A lt 10 gt 5MQ DC voltage ripple i 2 DC insulation resistance Output AC Nominal AC power 6000W Max AC power 6000W in 10 minutes 230V 212 256 V Nominal voltage Operational voltage range FW Setting 50Hz 47 05 50 45Hz Nominal frequency Operational frequency range FW Setting AC wiring system Single phase 26 A 28 6 A lt 3 Nominal AC current Max AC current O P current distortion THD 1 Power Factor gt 0 99 z O gt jul O EE Which is the DC voltage range that inverter can feed power to grid gt The DC resistance requirement for positive or negative terminal to chassis ground Regulation voltage range is 207 264 VAC according to G83 1 1 Regulation frequency range is 47 50 5Hz according to G83 1 1 24 Produced by UTICA www utica sg Topology lt 8W lt 0 1W standby night Protection degree Heat dissipation Operating temperature range Standard protocol Eaton Phoenixtec MMPL proprietary RS485 Protocol protocol Normative references Grid interface regulation G83 1 1 EMC EMS EMI LVD 2006 95 EC EMC 2004 108 EC 11 1 Load graphs for Utica Energy PV6 EN 61000 6 2
5. RO i he ur in i Voc Max ae hs Ya n t f J Model Current a Sy ane VDC ADC 2 Use MC4 or compatibly MC4 Multi contact connectors for the DC wiring ex Wieland PST4011 3 Connect the positive wire from the PV array to the terminal and the negative wire to the terminals Each DC terminal is rated to a maximum of 27 5ADC AN Cover the unused MC4 plugs on the PV Inverter with protection covers Before energizing the PV Inverter please ensure that the polarity is correct Incorrect polarity connection could cause permanent damage to the PV Inverter Check the short circuit current ISC of the connected PV array ISC should be less than the PV Inverter s maximum DC input current High voltages arise when the PV array is exposed to the sun This can AN cause an electric shock in conjunction with exposed live components Always be very careful when handling the PV modules array and any connections Ensure touch protection for individuals 14 Produced by UTICA www utica sg 6 4 Checking and start up after installation 1 Follow the messages on the display These are Power ON LED Green Fault LED Red LCD Display When the PV array is connected and the input voltage is higher than 180VDC if the AC grid is not connected the LCD will display the following message Standby gt XXXX W gt Waiting gt No Utility In this status the No Utility message will remain and
6. UTICA UTICA GRID PV INVERTER Utica Energy PV6 Installation and Operation Manual Version 1 0E Contents 2 2 Introducing the Utica Energy PV6 Inverter 3 Features 4 Scope of delivery 5 System diagrams 6 Installation instructions 6 linstallation 6 2 Wall mounting 6 3 Installation OSOnNInNInNI DA a nN RA QU pd pd 6 3 1 Connection to the grid AC side 6 3 2 AC output connector seal 6 4 Checking and start up after installation 7 Operation PV Inverter 7 1 Modes of operation 7 2 Front panel arrangement 7 3 Front panel 7 4 Display accuracy i ccesesseeeseeseseeseeeeees 8 Maximum Power Point Tracking MPPT 9 Communication 10 Display message table 11 Electrical specification 11 1 Load graphs for Utica Energy 12 Mechanical requirements 12 1 Dimension and color aaea 12 2 weigbt l aaeaeneenennenennrnennennenrcnenrcnenrrnnnnn 12 3 Installation method 13 Trouble shooting 14 Preventative maintenance 14 1 Visual Inspection 14 2 Checking and Maintenance 15 Regulation amp Certificate Produced by UTICA www utica sg pd pd pd N 6 3 3 Connection to DC Connector DC side y N y Ua Y NY WKY NY WK NV WY WN WY N mm m m m m m SS j A HA amp AAAA HE WwWHonvvevveuerr ran uaa un N N SIN 1 Before you start Thank you for choosing our product The Utica Energy PV6 inverter is a highly reliable product line thanks to its innovative design and st
7. and a bar graph on the right Press the Function key repeatedly until the display s contrast is acceptable d Release the key for more than 10 seconds the display will show Pac xxxx x W Setting completed Contrast sehip 19 Produced by UTICA www utica sg Model Exxx 6000 Model information a VER Feeding energy of F W version Etodav kWh e Fac k Wh the current day Accumulate energy Normal Operating status Set Contrast Contrast Adj E o Set Language Language setting Vac V Vde __ _V DC PV voltage Frequency _ Hz AG Frequency Auto Test Set LCD Display 7 4 Accuracy of the reading The reading on the LCD is just for reference We do not recommend using the data for checking or testing of the system Normally its accuracy is around 2 In all ranges of operation the accuracy is up to 5 8 Maximum Power Point Tracking MPPT A good PV inverter must be able to convert the maximum power from any PV panel Due to its advanced design Utica Energy PV6 inverter can track the maximum power from your PV panel in any condition When the displayed power on the LCD output does not change dramatically Utica Energy PV6 inverter is converting the maximum power from panels When the LCD power reading is significantly changes Utica Energy PV6 inverter is tracking the powe
8. atibility EMC Part 4 4 Testing and measurement techniques Electrical fast transient burst immunity test IEC 61000 4 5 Electromagnetic compatibility EMC Part 4 5 Testing and measurement techniques Surge immunity test IEC 61000 4 6 Electromagnetic compatibility EMC Part 4 6 Testing and measurement techniques Immunity to conducted disturbances induced by radio frequency fields IEC 61000 4 8 Electromagnetic compatibility EMC Part 4 8 Testing and measurement techniques Power frequency magnetic field immunity test IEC 61000 4 11 Electromagnetic compatibility EMC Part 4 11 Testing and measurement techniques Voltage dips short interruptions and voltage variations immunity tests Grid Monitoring G83 1 1 Recommendations for the Connection of Small Scale Embedded Generators in Parallel with Public Low Voltage Networks 29 Produced by UTICA www utica sg Safety IEC 60529 Degrees of protection provided by enclosures IP Code IEC 62103 Electronic equipment for use in power installations IEC 61683 Photovoltaic systems Power conditioners Procedure for measuring efficiency 30 Produced by UTICA www utica sg
9. cially series IEC 60364 Part 7 712 Requirements for special installations Solar photovoltaic PV power supply systems 6 3 1 Connection to the grid AC side 1 Measure the grid utility voltage and frequency It should be 230VAC or 220VAC 50Hz single phase 2 Open the breaker or fuse located between the Inverter and the grid 3 Use the correct cross section for wiring according to IEC 60364 4 43 and your national installation standards Suggested minimum cross sections ae Stranded Solid Stripping wire wire length A s Stripping length Refer to the diagram on the right Insert the utility cable through the cable gland Connect the wires according to the polarity indicated on the terminal block L Line brown black 13 Produced by UTICA www utica sg White blue grey are usually used for N according to NEC N Neutral blue PE System ground green yellow Secure the gland plate with the supplied screws Rotate the gland until the cable is firmly secured We recommend a 30mA or 100 mA Type A RCD for additional protection as per IEC 60364 4 41 Clause 412 5 6 3 2 Connection to PV panel DC input 1 Make sure that the maximum open circuit voltage VOC of each PV string Is less than listed in the table below i ki k iji Tir Ly nUr s mt i Ly ft P Fan n Fe i Stall L raak 1 a Ti j mT 1 i in L bf TOENN kr Bara e
10. hecking AX sec Information during start up 18 Produced by UTICA www utica sg 3 4 5 6 Change display information During normal operation Utica Energy PV6 inverter can show details about the PV Inverter The display is setup to automatically indicate the supplying power to the grid Press the Function button on the front panel and release it immediately to see additional information Each subsequent press changes the display The display sequence is shown in panel LCD display sequence figure on next page Hold display If you want to hold a specific display Repeatedly press the function key until the desired display is reached Release the key and press again for more than second until you see Lock release the key the information remains on the display To change the display again please press the key as indicated in 3 LCD backlight control To save power the LCD display s backlight automatically turns off after 30 seconds To enable it press the Function key again Contrast control A natural phenomenon of LCD displays is the background color is darker at higher temperatures At higher temperatures the characters may not be easily identified In this case the adjust the contrast as follows Press the Function key repeatedly until Contrast shows in the display b Hold the Function key down for more than 2 seconds until display shows Set contrast
11. le To comply with local safety standards and codes this part must be designed by a qualified technician 6 Utility this is also referred to as the grid within this manual It is the method used by your electricity company to provide power to your site Please note that the Inverter can only be connected to low voltage systems namely 220 230 VAC 50Hz Produced by UTICA www utica sg 6 Installation instructions 6 1 Prior to installation Before starting the installation process please consider the following IP65 proof for outdoor use This unit is designed for outdoor use however we do not recommend that it is exposed to moist or wet environments Do not expose this unit to direct sunlight Direct sunlight will increase internal temperatures thus reducing efficiency Check that The ambient temperature of the PV Inverter is within the specified range 20 to 55 C x For optimum operation we recommend an ambient temperature within the range of 0 to 40 C The AC grid voltage is between 212 and 256 VAC 50Hz The electricity utility company has approved connection to the grid Qualified personnel are performing for the installation process Adequate ventilation space is provided around the Inverter The Inverter is installed in a room free from explosive vapors No flammable items are near the Inverter Produced by UTICA www utica sg 6 2 Wall mounting 1 Select a wall or solid
12. le or no sunlight Utica Energy PV6 inverter automatically stops running In this mode Utica Energy PV6 inverter does not take any power from the grid The display and LED s on the front panel do not work 7 2 Front Panel arrangement rR TE A Ut Ca Energy F 2 VO LCD Liquid Crystal Display 17 Produced by UTICA www utica sg 7 3 Front Panel Operating Utica Energy PV6 inverter is quite easy During normal operation Utica Energy PV6 inverter runs automatically However to achieve maximum conversion efficiency of Utica Energy PV6 inverter please read the following information 1 Automatic ON OFF Utica Energy PV6 inverter starts up automatically when DC power from the PV panel is sufficient Once the PV Inverter starts it enters one of the following 3 states Standby The PV string can only provide just enough voltage to minimum requirements of the controller Waiting When the PV string DC voltage is greater than 130V Utica Energy PV6 inverter enters a waiting state and attempts to connect to the grid Normal operation When PV string DC voltage is greater than 180V Utica operates in the normal state In this state it feeds power to the grid Utica Energy PV6 inverter automatically stops when the PV power is not enough 2 Starting up display sequence Once the PV power is sufficient Utica Energy PV6 inverter displays information as shown in the flow chart to T the right C
13. ny risk of electric shock AC and DC power shall be switched off whenever personnel need to contact PV panel under any circumstances 28 Produced by UTICA www utica sg 15 Regulation amp Certificate Compliance amp Standards EMC IEC 61000 6 2 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for industrial environments IEC 61000 6 3 Electromagnetic compatibility EMC Part 6 3 Generic standards Emission standard for residential commercial and light industrial environments IEC 61000 3 11 Electromagnetic compatibility EMC Part 3 11 Limits Limitation of voltage changes voltage fluctuations and flicker in public low voltage supply systems Equipment with rated current lt 75 A and subjet to conditional connection IEC 61000 3 12 Electromagnetic compatibility EMC Part 3 12 Limits Limits for harmonic currents produced by equipment connected to public low voltage systems with input current gt 16 A and lt 75 A per phase EN 55014 1 Electromagnetic compatibility Requirements for household appliances electric tools and similar apparatus Emission IEC 61000 4 2 Electromagnetic compatibility EMC Part 4 2 Testing and measurement techniques Electrostatic discharge immunity test IEC 61000 4 3 Electromagnetic compatibility EMC Part 4 3 Testing and measurement techniques Radiated radio frequency electromagnetic field immunity test IEC 61000 4 4 Electromagnetic comp
14. r according to the varied sunlight W 20 Produced by UTICA www utica sg V When the PV panel s output is low the feeding DC power may drift slowly ey as does the AC power It is because PV Inverter is tracking maximum DC power continuously 9 Communication The Inverter is equipped with a powerful communication interface and options The user can use software to monitor the status of the Inverter Qualified personnel can also upgrade the firmware via the RS232 port Optional communication slot the Inverter can accept various special cards designed for this slot only these provide powerful interfacing RS232 to use the RS232 port remove the RS232 cover from the underside of the inverter This is a DB9 socket and the pin out is as follows DB9Y connector pin definition Pin Functional description NLC TxD RxD NC 5 1 Common 9 6 N C N C N C N C TxD Data transmission o oy on fe Geo Ta RxD Data reception N C Not Connected ATTENTION If you are already using an optional communication card slot device the RS232 port cannot be used 10 Display message table The PV Inverter requires very little attention in most situations However if the inverter is not working correctly please refer to the following instructions before calling your local dealer Users will usually be able to solve most problems Whenever the Red Fault LED is illuminated the LCD will displa
15. ringent quality control Such a device is intended for use in high demand grid linked PV systems This manual contains information regarding the installation and safe operation of this unit Be sure to read this manual carefully before using If you encounter any problems during installation or operation of this unit always refer to this manual before contacting your local dealer or representative The instructions provided in this manual will help you solve most installation and operational difficulties Please check Section 4 Scope of delivery before starting the installation process Thank you again for choosing our product Please keep this manual at hand for future reference Produced by UTICA www utica sg 2 Safety instructions Risk of electric shock 1 Do not remove the covers The Grid PV Inverter contains no user serviceable parts Refer any servicing to qualified service personnel i Both AC and DC voltages are present in this equipment All circuits must be disconnected prior to servicing 2 When a photovoltaic module is exposed to light it generates a DC voltage When connected to this equipment a photovoltaic array will charge the DC link capacitors 3 Energy stored in this equipment s DC link capacitors poses a risk of electric shock Even after the unit has been disconnected from the grid and photovoltaic array high voltages may still be present within the unit Always allow at lea
16. sh modern design Compact small profile High reliability Maintenance free Natural convection cooling Quiet no fan design Very high conversion efficiency MPPT Maximum Power Point Tracking Higher power capacity than similar products of the same size Standard RS232 and RS485 4 Scope of delivery After opening the packaging please check the contents of the box It should contain the following 1 x Grid PV Inverter 1 x User manual 1 x Mounting frame 6 x Mounting screws 2 x Safety lock screws 1 x Output cover 1 x Cable gland M32 Produced by UTICA www utica sg 5 System Diagrams A typical connection for an entire PV system is shown in the drawing below Utility am AC Connection Unit AC Output Feeding AC powerto Public Utility only 1 PV array provides DC power to the Inverter 2 DC dis connector for de energizing the DC side of the PV array 3 PV Inverter converts the DC Direct Current power from the PV array into AC Alternating Current power As this unit is a grid connected Inverter it controls the optimum output current amplitude according to the power provided from the PV array 4 DC SPD this surge protective device protects the system from transient surges caused by the effects of lightning strikes 5 Connection System the interface between the grid and the Inverter This will consist of a circuit breaker fuse and terminals for the connection for examp
17. st 30 minutes following the disconnection of all power sources before removing any covers or panels 4 This unit is designed to supply power to the grid utility only Do not connect this unit to an AC source or generator Connection of the PV Inverter to this type of equipment will cause damage 5 Carefully remove the unit from its packaging Inspect for external damage If you find any damage please contact your local dealer Hot surface Although designed to meet all safety requirements certain parts and surfaces of the PV Inverter will become hot during operation To reduce the risk of injury do not touch the heat sink behind the unit or any surface near the heat sink whilst the Grid PV Inverter is operating Keep a distance of at least 5 cm between AC and DC wiring and the heat sink Produced by UTICA www utica sg 2 1 Overview the Utica Energy PV6 Inverter Bottom View 000000000000 pEEHOOREEJON Produced by UTICA www utica sg 2 2 Introducing the Utica Energy PV6 Inverter Function Button AA ae A Power ON LED Green Grid feeding Ny Fault LED Red ZF ye Failure Utility AC connection Gland plate LCD Display Optional showing the inverter status j RS 232 Cover communication slot PV Array Input DC Produced by UTICA www utica sg 3 Features Easy to install Easy to operate Embedded LCD display complete status information Styli
18. t function well The internal temperature is higher than Temperature too high Over temperature normal value The relay between inverter and grid is not Output relay failure Relay Failure functional Output DC injection too high Output DC injection too high C INJ High EEPROM problem EPROM Failure EEPROM inside has data access problem ow DC Bus The communication between MCU inside is Communication failure between microprocessors abnormal DC bus voltage is too high High DC Bus The DC BUS inside is higher than expected DC bus voltage is too low LowDe Bus The DC BUS inside is lower than expected 2 5V reference voltage inside Ref 2 5V Fault The 2 5V reference inside are abnormal prolem Output DC sensor abnormal DC Sensor Fault The DC output sensor is abnormal GFCI detection problem GFCI Failure The GFCI detection circuit is abnormal Model display Uca Energy PVE nvr model LCD contrast Conrat fre top menu of LCD contrast setting LCD contrast setting Setting the contrast of LCD LCD display lock Lock ot the present display message Waiting for reconnect to grid The time for reconnect to grid Firmware version F W version information 23 Produced by UTICA www utica sg D EEP SCI Low Setting Language Set Language Set up of the display language 11 Electrical specification Model Utica Energy PV6 Grid interface regulation G83 1 1 Input DC 380V 550V Nominal DC voltage Max
19. the RED Fault LED is illuminated U tica Energy PV6 15 Produced by UTICA www utica sg 2 Close the AC breaker or fuse between the PV Inverter and the grid The PV Inverter status should change to normal operation after a countdown Checking xxS if the PV array is energizing with a DC voltage higher than 180VDC C O Utica Energy PV6 Checking xxS Fault Functio Fault Utica Energy PV6 16 Produced by UTICA www utica sg 7 Operating PV Inverter 7 1 Modes of operation There are 3 different modes of operation 1 Normal mode In this mode Utica Energy PV6 inverter works normally Whenever the supplied power from PV panel is sufficient voltage gt 180VDC Utica Energy PV6 inverter converts power to the grid as generated by the PV panel If the power is insufficient voltage lt 130VDC Utica Energy PV6 inverter enters a waiting state While waiting Utica Energy PV6 inverter uses just enough power from the PV panel monitor internal system status In normal mode the green LED is on 2 Fault mode The internal intelligent controller can continuously monitor and adjust the system status If Utica Energy PV6 inverter finds any unexpected conditions such as grid problems or internal failure it will display the information on its LCD and light up the red Fault LED 3 Shutdown mode During periods of litt
20. ug the PV panel and check PV Inverter Status If the problem persists please call service Wait for 30 seconds if the grid returns to normal PV Inverter automatically restarts Grid Fault Make sure grid voltage and frequency meet the specifications If the problem persists please call service Check open PV voltage see if it is too close to or over SSOVDC PV over If PV voltage is less than 550Vdc and the problem still occurs please Voltage call service Grid is not connected No Utility Check grid connection cables Check grid usability Consistent Disconnect PV or PV from the input restart the PV Inverter Fault If it does not work call service The internal temperature is higher than specified normal value Over Find a way to reduce the ambient temperature Temperature 3 Or move the inverter to a cooler environment Relay Failure DC INJ Disconnect ALL PV or PV EEPROM _ Wait for few seconds Failure SCI Failure 3 After the LCD switches off reconnect and check again High DC Bus 4 Ifthe message reappears call your local service Low DC Bus Ref 2 5V Fault DC Sensor Fault GFCI Failure If it is not effective call local service 2I Produced by UTICA www utica sg If there is no display on the panel please check PV input connections If the voltage is higher than 180V call your local service During periods of little or no sunlight the PV Inverter may
21. y information about the problem Please read this information and refer to the table below 21 Produced by UTICA www utica sg Poweroff fe display PV inverter is totally shutdown Vpy lt 100V Standby Standby 100V lt Input voltage lt 130V Input voltage range 130 180V_ during Initialization amp waiting iti start up After PV voltage is higher than 150V inverter is waiting for feeding to grid Check grid TE AN When PV voltage gt 180V inverter is checking feeding conditions Inverter is feeding power After 10 seconds Feeding grid MPPT Normal of this display LCD will show wattage FLASH FLASH Flash firmware Instantaneous Output power The real time output power in xxxx W Total energy to has been fed to grid since Accumulated energy information Energy xxxxxxkWh inverter was installed Earth fault of the PV panels or failure of Isolation failure Isolation fault surge voltage protection Leakage current on ground conductor is too high Grid measured data is beyond the Grid failure Grid fault specification voltage amp frequency Noutlty fe Utility Utility is not available 22 Produced by UTICA www utica sg GFCI active Ground I fault Input voltage higher than the maximum Input voltage too high PV over voltage input voltage The readings of 2 microprocessors are not Consistent failure Consistent Fault consistent It could be caused by CPU and or other circuit do no
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