UniLynx Indoor User Manual
Contents
1. input since last resetting of max value memory Total drt Temp Press OK to view Total Derating Temperature Shows the total amount of time the inverter has derated due to high temperature Submenu DC1 derate temp 3h 35m 061 Derating Temperature Shows the amount of time the inverter has derated due to high temperature DC2 derate temp 3h 35m DC3 derate temp 3h 35m DC2 Derating Temperature Shows the amount of time the inverter has derated due to high temperature DC3 Derating Temperature Shows the amount of time the inverter has derated due to high temperature Total drt Grid Oh 00 min Total Derating Grid Shows the amount of time the inverter has derated due to unstable grid conditions Power down time 00600 seconds Code numbers PRESS OK to view Time before inverter goes into OFF mode when no solar power is avail able Press OK to access submenu for recorded values k Submenu Inverter code no Indicates inverter product code AC code number 60070105602 DC1 code number C0070105402 Indicates AC module product code Indicates DC1 module product code DC2 code number C0070105402 DC3 code number C0070105402 Indicates DC2 module product code Indicates DC3 module product code Serial numbers Press OK to view Press OK to go to submenu for recorded values Submenu Inverter SN Indicate2. PV configuration test has not yet been run Shown before the inverter connects to grid OFF PV configuration test is disabled Applicable to ULX 1800i and to inverters where the test is otherwise disabled WAITING The PV configuration test is ready to run but only solar radiation for one PV input is available Applicable to ULX 54001 The inverter can only determine the con figuration of all three modules when two are running PV AUTODETECTING The PV configuration test is running No result yet INDIVIDUAL The PV modules are connected in individual string configuration PARALLEL 1 2 The PV configuration has ended concluding that inputs 1 and 2 are connected in parallel string configuration PARALLEL 1 3 The PV configuration has ended concluding that inputs 1 and 3 are connected in parallel string configuration PARALLEL 2 3 The PV configuration has ended concluding that inputs 2 and 3 are connected in parallel string configuration PARALLEL 1 2 3 The PV configuration has ended concluding that inputs 1 2 and 3 are connected in parallel string configuration Table 2 1 PV Configuration Test Status Field Text The PARALLEL 1 2 is only allowed for the ULX 3000i 3600 inverter The PARALLEL 1 2 PARALLEL 1 3 and PARALLEL 2 3 is not allowed for the ULX 5400i inverter 4 00410292 05 02 2 Function Description 2 1 3 LEDs The green LED indicators show the production in pe
3. 2 1 2 PV Configuration Upon connecting to grid an automatic test of the PV module wiring is performed by the inverter This test is made in order to determine the wiring configuration of the modules It is established whether the modules are connected in individual string configuration or in parallel string config uration and the inverter is automatically configured accordingly 00410292 05 02 3 2 Function Description The test works by activating the input one by one The test takes 1 2 minutes and the inverter continues to produce energy meanwhile In menu B the result of the test can be read in the display menu called PV configuration Upon test completion the display will automatically show the PV configuration detected however only if the buttons on the display have not been used in the past 3 minutes For ULX 5400i 2 out of 3 DC modules must be powered for the test to run If not enough PV power is available to power 2 modules the test is postponed until sufficient PV power is available for the second DC module to run Notice that the inverter continues to produce energy in the meantime The display readout shows the status of the test The first line shows that this concerns the PV configuration and the second line shows which status the test is in or which configura tion it has detected On Grid Test end Illustration 2 1 PV configuration test The status field may show the following IDLE
4. Clean inverter and integrated display with a soft cloth Do not use aggressive chemicals cleaning solvents or strong detergents to clean the inverter 4 1 3 Cleaning the Heatsink In order to secure proper function and long inverter life it is essential that the free air circulation around the heat sink at the back of the inverter is not obstructed If the free air circulation is obstructed e g by dust this has to be removed Clean the heatsink by means of a soft cloth or a brush Do not use aggressive chemicals cleaning solvents or strong detergents to clean the inverter The heatsink can reach a temperature of more than 70 C during operation Touch ing components of this temperature may result in serious injuries Note BS Do not cover the inverter 00410292 05 02 11 Danfoss Solar Inverters A S Ulsnaes 1 DK 6300 Graasten Denmark Tel 45 7488 1300 Fax 45 7488 1301 E mail solar inverters danfoss com www solar inverters danfoss com Danfoss can accept no responsibility for possible errors in catalogues brochures and other printed material Danfoss reserves the right to alter its products without notice This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the respective companies Danfoss and the Danfoss logotype are trademarks of D
5. MAKING MODERN LIVING POSSIBLE UniLynx Indoor User Manual ULX 1800i ULX 3000 ULX 3600i e ULX 5400 SOLAR INVERTERS Contents 1 Introduction L00410292 05_02 Contents 1 Introduction Danfi 1 Introduction 1 1 Introduction This manual describes Danfoss photovoltaic inverters These products are among the most tech nologically advanced and efficient inverters on the market and are designed to supply the owner with reliable solar energy for many years Illustration 1 1 ULX Indoor Range CE marking This certifies the conformity of the equipment with the regula tions which apply in accordance with the directives 2004 108 EC and 2006 95 EC 2 00410292 05 02 2 Function Description 2 Function Description 2 1 Definition of Operation Modes The inverter has four modes Standby mode In standby mode the inverter is ready to switch into connecting mode As decision variable the input voltage of the PV generator is used If the input voltage exceeds a preset nominal value the inverter shifts from standby to connecting or continues into the operation mode OFF if the PV voltage drops Connecting mode After performing the system tests which check whether all connection conditions are met the inverter goes from standby mode to connecting mode During the specified cut in time the in verter continues testing the system values and connects t
6. anfoss A S All rights reserved Rev date 2010 03 24 Lit No L004100292 05_02
7. ctual grid voltage and frequency values ENS COM ERR Error in communication with ENS board Inverter Service inverter ENS impedance Grid impedance step higher than limit AC grid In case of repeated occurrence Request technical service from utility PV CONFIG ERR Error detected by PV configuration test PV system Check the cabling of the PV panels Two DC inputs are wired in parallel string configura tion one is not Not recorded in the event log red LED does not flash Event text Description Fault Action in the event of a permanent fail origin ure EARTHFAULT Current event shown in grid mode PV system Earth fault check PV system for earthing to avoid damage to PV panels Request techni cal service from the PV system supplier or in Staller A permanent failure is defined by an event having been present for more than 15 minutes L00410292 05_02 Danfoss 4 Maintenance 4 1 Maintenance 4 1 1 Maintenance Normally the ULX indoor inverters need no maintenance or calibration It should be ensured however that the cooling is not obstructed and that the inverter is kept dry at all times To ensure the functionality of the DC switch all switches should be switched on and off by turning the switch to on and off positions ten times once a year to clean the contacts If it becomes wet wipe it dry immediately Liquids may contain substances that corrode the elec tronics 4 1 2 Cleaning the Cabinet
8. er supply outside limits Inverter Service inverter U 15 0 Internal power supply outside limits Inverter Service inverter U PV Input voltage from PV string too high PV system Request technical service from PV system supplier U SNUBBER Snubber voltage too high Inverter Service inverter U DC BUS DC bus voltage too high Inverter Service inverter U GRID AC grid voltage outside the threshold AC grid In case of repeated occurrence Request values higher or lower than setting technical service from utili F GRID Grid frequency outside limits outside AC grid In case of repeated occurrence Request settings technical service from utility IPM CURRENT The DC content in the AC current is too Inverter Service inverter high ENS ENS error AC grid In case of repeated occurrence Request technical service from utility ENS RAM ENS memory error Inverter Service inverter ENS FL CHKSM Flash memory error after self test Inverter Service inverter ENS EP CHKSM EPROM memory error after self test Inverter Service inverter HW TRIP Hardware trip current too high Inverter Service inverter TEMP HIGH Temperature in integrated power mod Environ Check whether inverter is covered ule too high ment Check inverter for free air flow through heat sink Clean heat sink Check that ambient temperature is within limits EPRM PAR LIM Validity check of grid voltage and fre Inverter Request service to check inverter settings quency settings Settings too far away from a
9. he event is shown If an earthing fault occurs the display will indicate this by a flash of the lit green LEDs The display will change to current event if it has not been operated in the past 10 minutes The inverter will continue to produce energy In case an earth fault occurs this does not indicate an inverter error and technical assistance must be called to check the PV panel connection Only applicable if earth fault detection is enabled By default earth fault detection is enabled for the following countries Austria France and Spain 8 00410292 05 02 Danfoss 3 Troubleshooting 3 Troubleshootinc 3 1 Troubleshooting Note Z Remember that only trained and authorised personnel familiar with electrical systems and safety issues may work on inverters and electrical installations In the following the term Event describes all events that prevent the inverter from operating properly An event may occur anywhere in the installation grid PV module cable and connections inverter at any time Not all events indicate an inverter error If the PV system does not supply power to the grid as expected please go through the following checklist 1 Check that the grid is connected properly to the inverter and that the grid is ready for operation 2 Check that there is sufficient solar radiation to generate power Check for shading and loose cables connections in the PV system 4 Check the instal
10. he inverter to the grid if the system tests are okay The minimum cut in time is specified by the supplier and authorities and can vary from region to region Grid mode In this mode the inverter is connected to the grid and supplies power to the grid The inverter is only uncoupled from the grid in case of abnormal grid conditions or when PV power is not available PV configuration mode Having completed the connecting mode the PV module wiring is automatically tested to detect whether any of the DC inputs are wired in parallel string configuration If so the DC modules are automatically run in parallel string configuration mode Master Slave Derating temperature If the display shows DRT TEMP the inverter is derating due to high temperatures Derating grid If the display shows DRT GRID the inverter is derating due to high voltage on the grid Off If there is no PV power available the inverter waits ten minutes specified value before it disen gages In this mode the power supply to all processors is switched off to conserve energy This is the normal night mode 2 1 1 Grid Surveillance In order to safeguard the people working on AC power lines and the inverter the inverter shuts down in the event of abnormal grid conditions or failures The inverter continuously monitors grid voltage and frequency by means of an internal control circuit Subsequently the inverter will re connect as soon as the grid is within limits
11. lation of the PV modules if the voltages of the PV modules is not within the expected values Check the event in menu B If the red LED is flashing this indicates a failure 6 If the above mentioned points are OK wait 15 minutes to find out whether there is a permanent failure 7 If the PV system still does not supply any power to the grid please check the voltage current and power of the PV module as well as voltage current and power of the grid in menu B 8 If the voltage values of the grid do not lie within the threshold values please contact your public utility for technical assistance 3 1 1 Inverter Event Messages The red LED will start flashing in case of an Everts Mod inverter event Please check the event in menu B ICAC The event text is a short text describing the event If the inverter reports an event ID number to the display instead of a text no event text has been predefined for that particular event ID num ber This could be the case if the display software is older than the inverter software Module designation identifies the module that caused the event DC1 DC2 DC3 or AC 00410292 05 02 9 3 Troubleshooting 10 2 Table 3 1 Inverter Event Log Event text Description Fault Action in the event of a permanent fail origin ure U 3 3 Internal power supply outside limits Inverter Service inverter U 5 0 Internal pow
12. menu for recorded values Present current at PV input 1 upper position in inverter Present current at PV input 2 second position in inverter Present current at PV input 3 third position in inverter Press OK to access submenu for recorded values Maximum values recorded at AC output since last resetting of max value memory DC1 in 2220 W 8 004 A 509 V DC2 in 2220 W 8 004 A 509 V Maximum values recorded at DC1 input since last resetting of max value memory Maximum values recorded at DC2 input since last resetting of max value memory DC3 in 2220 W 8 004 A 509 V Table 2 3 Overview Menu Structure B Maximum values recorded at DC3 input since last resetting of max value memory The PV2 and PV3 menus are only displayed in inverters equipped with two or three inputs 00410292 05 02 2 4 Menu Structure B Continued Display Functions Maximum values Press OK to view Description Press OK to access submenu for recorded values s Submenu AC out 1844 W 8 356 A 263 V DC1 in 2220 W 8 004 A 509 V Maximum values recorded at AC output since last resetting of max value memory Maximum values recorded at DC1 input since last resetting of max value memory DC2 in 2220 W 8 004 A 509 V DC3 in 2220 W 8 004 A 509 V Maximum values recorded at DC2 input since last resetting of max value memory Maximum values recorded at DC3
13. rcentage of the nominal inverter power rating The leftmost green LED is always lit when the inverter is connected to the grid While connecting to grid both the red LED and the leftmost green LED will be on When the inverter is off grid the red LED to the left is lit to indicate that the inverter is in standby mode No green LEDs are lit If no LED s are on the inverter is off If the inverter is forced into standby mode because of an event in the inverter or the peripheral connections e g disconnection from the grid the red LED starts flashing For a description of events please refer to the section on 7roubleshooting 2 1 4 Display Through the integrated display on the inverter front the user has access to all information about the PV system and the inverter When the inverter is in OFF mode at night the inverter can be activated by pressing the left button ESC 2 ESC Goes one step backwards up in the menu structure A Scrolls back to the previous menu display v Scrolls forward to the next menu display OK Enter New menu level or changing of settings 2 The parameters shown in the display refer to internally measured voltages and currents The parameters shown may deviate The display information is organised in a menu structure divided into two sections A and B Section A Contains information about the in verter and PV system performance Section B Displays all measurement values and u
14. s inverter serial number AC SN 117500C0408 DC1 SN 642800C0808 Indicates AC module serial number Indicates DC1 module serial number DC2 SN 642800C0808 Indicates DC2 module serial number DC3 SN 642800C0808 Table 2 4 Overview Menu Structure B Indicates DC3 module serial number The DC2 and DC3 menus are only displayed in inverters equipped with two or three inputs The maximum values for PV power may reach more than 2000 W in inverters where the inputs are connected in parallel This is normal In menu section A the display will continue to show the menu point last chosen by the user In menu B the display automatically switches to menu A when there has been no keyboard activity for 3 minutes L00410292 05_02 2 Function Description 2 Function Description If the inverter is off grid and no keys have been pressed for a certain number of seconds the display will automatically switch to the operation mode display If the inverter is on grid and there has been no keyboard activity for 3 minutes the display au tomatically switches to the display Production today When the PV configuration test initiates and terminates the display temporarily changes to menu B to show the state of the PV configuration test If the inverter is disconnected from the grid because of a failure the red LED will start flashing and the display automatically switches to menu B where t
15. ser settings Illustration 2 2 Display 2 1 5 Overview Menu Section A The table below gives an overview of the menu structure The values shown are only intended as examples of display texts The display text shown in the first column Display Functions is divided between 2 lines with 16 characters available per line The line division is illustrated with the symbol Menu Structure A Display Functions Description Output power 0 W Current output power in watt Use Service Tool to enter inverter name If the inverter name is undefined this menu Inverter name is skipped Total production 22 991 kWh Total energy production in kWh since first inverter start up Total operating time 00028h 57m 025 Total operating time time with power on displayed in hours minutes and seconds Production today 19637 Wh Energy production today in Wh Go to menu B Jumps to menu level B when OK is pressed Table 2 2 Overview Menu Structure A 00410292 05 02 5 2 Function Description 2 1 6 2 Overview Menu Section 8 The table below gives an overview of the menu structure The two menu levels are clearly indicated by an arrow followed by a submenu The values shown are only intended as examples of display texts The display text shown in the first column Display Functions is divided between 2 lines with 16 characters available per line The line division is illustrated with the s
16. ymbol Menu Structure B Display Functions Operation mode STANDBY Description Displays present inverter operation mode See operation mode definitions in chapter 2 PV configuration IDLE Event Mod ENS FL CH DCAC Shows the status of the automatic PV configuration test and the results found If the inverter is not connected to the grid because of a failure the red LED starts flashing and the reason for the failure is shown here Language ENGLISH View and choose display language Does not affect any other settings Grid voltage 0 V Displays the present grid AC voltage Grid current 0 00 A Displays the present current flow to the grid Grid frequency 0 00 Hz Displays the present grid frequency Grid impedance 0 0 ohm Displays the present grid impedance PV voltage Press OK to view Press OK to access submenu for recorded values 2 Submenu PV voltage no 1 303 0 V PV voltage no 2 303 0 V PV voltage no 3 303 0 V Present voltage at PV input 1 upper position in inverter Present voltage at PV input 2 second position in inverter Present voltage at PV input 3 third position in inverter PV current PRESS OK to view Submenu PV current no 1 0 0 A PV current no 2 0 0 A PV current no 3 0 0 A Maximum values Press OK to view F Submenu AC out 1844 W 8 356 A 263 V Press OK to access sub
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