Installation and User manual – SOLO 250
Contents
1. Enter the Operator level password using the number key pad Tap Set Men p a n lf the sequence was correctly done the following message appears Access level Operator granted 13 04 2011 13 17 48 Figure 7 5 Confirmation message Manual 50603 Revision A1 40 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclrolave que 7 5 Inverter Parameter List Table 7 2 lists the operational parameters for the feedback window and the parameter display An overview of the system parameters their functions meanings and locations are listed in Table 7 3 to Table 7 6 Table 7 2 Operational parameters displayed on the main menu see Figure 7 2 5 Ce Ugua temperature Coolant emprawre e pva votas PV kage mous ve Table 7 3 System parameters description part 1 Main menu PV start voltage The minimum PV voltage input 1 to start the inverter display Status Figure 7 2 6 Events log View Delete events Manual 50603 Revision A1 41 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolimve Al Table 7 4 Meaning of status texts displayed on the main menu see Figure 7 2 6 Initializing Connecting to the inverter main control unit Off Inverter switched off Ready Temporary state before Running Running The installation is producing energy Night Mode Temporary state prior to stand by mode PV voltage is below the minimum waiting to switch off Table 7 5 Meaning of status colo2. e When a string box is OK a detailed string current list is displayed e When a certain string box has one or more strings with low current a warning message with string current and string box average current is displayed e When a string current is low for less than 15 minutes no warning is issued Figure 7 7 String box status window with details String monitoring can be switched on when the string box has string current measuring capability and otherwise is off A low current warning is issued when the current of one or more strings is less than a preliminary defined threshold as percentage of the average string current of the box Manual 50603 Revision A1 44 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolimve Ale String monitoring switch on off and parameter setting 1 Change the access level to Operator as shown above 2 Tap String Boxes Monitoring field Figure 7 2 3 and then Settings 3 Using or go to Activate string monitoring parameter and tap Set 4 Change the value to Yes using or and tap Set 5 If you want to change the trigger limit for low current warning use or to go to Low current warning at of average string current parameter and tap Set 6 Using the number key pad enter the desired value and tap Set The value should not be too high because faulty warnings could be generated due to string current variations resulting from shadows clouds etc
3. fault at 20 C Integrated safety valve Antifreeze Ethylene glycol Coolant concentration for freezing point 25 C k nim tit 55 water Coolant antifreeze water mixture volume Mi Approx 7 litres inverter with original heat exchanger and 2 x 10 m hoses Manual 50603 Revision A1 14 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrolave A 4 6 Electrical Installation A n The installation of the inverter must only be performed by authorized personnel The absence of voltages grid and PV lines must be ensured during installation After opening all power connections grid and PV wait for 10 minutes to ensure internal power capacitors have discharged 4 6 1 Overview of the Electrical Connections The location of the electrical connections in the inverter is shown in Figure 4 7 oE EE O i n ee 2 i DEYE TO a_n Figure 4 7 Location of the electrical connections in the inverter 1 PV input power terminals 2 PE copper rail for all internal and external PE connections 3 Terminal for Ethernet string box supplies controls and feedbacks heat exchanger fan supply transformer monitoring external grid monitoring external start stop external E stop external auxiliary supply terminals 4 Communication and control interfaces weather station supply 5 N copper rail for N connection for option VDE AR N 4105 only 6 Fibre optic communication interface 7 Power connec
4. 02 0415 Copyright ELECTROINVENT Q eleelkrolamve A 4 6 14 Serial user interface RS485 optional Table 4 18 Serial user interface RS485 see Figure 4 19 49X4 1 485A RS485 interface Cable type Outdoor UV light 49X5 1 485B RS485 interface Pelee Recommended UNITRONIC Li2YCYv TP 2x2x0 5 or 49X6 1 GND RS485 interface 3x2x0 5 1 spare pair Lapp Kabel 4 6 15 Interface to Integrated Central Control unit Weather station optional Table 4 19 Serial interface RS485 to ICC Weather station see Figure 4 19 Specification 485A RS485 interface Cable type Outdoor UV light 485B RS485 interface resistant Recommended UNITRONIC LIZYCYv TP 2x2x0 5 or GND RS485 interface 3x2x0 5 1 spare pair Lapp Kabel Note If an ICC unit is used the weather station communication is done via ICC If no ICC unit is used terminals 49X8 1 and 49X9 1 can be used for connection to the weather station 4 6 16 Power supply for weather station Table 4 20 Weather station supply see Figure 4 19 Specifications 24 Voc 24 Vpc weather station supply 0V Figure 4 19 RS485 to ICC terminals for user interface power limitation weather station supply see also Figure 4 7 4 Manual 50603 Revision A1 27 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolimve Al 4 6 17 Installation of the GSM Modem optional Table 4 21 Connection remote monitoring modem see Figure 4 20 and Figure 4 21 GSM modem Antenna with
5. 4 3 PV input power connections see Figure 4 9 10X3 PV Input 3 negative pole Each PV input copper bar has two 10X3 PV input 3 positive pole conductor clamps for one cable 10X2 PV input 2 negative pole Fastening torque 12 15 Nm ae DU Sen Cu cross section 70 150 mm 10X1 PV input 1 negative pole Note Follow the National Electrical _ PV input 1 positive pole Code Note For convenience please connect the cables in the sequence shown in Table 4 3 Manual 50603 Revision A1 17 51 IUM SOLO250 EN V2 02 0415 Q electollavenk Copyright ELECTROINVENT 10x1 cm 10X14 i P 10X2 i 10X2 ff 7 Hi ii 10X3 10X3 Figure 4 9 PV input power terminals see Figure 4 7 1 Table 4 4 Phase connections to the grid transformer see Figure 4 10 ia 12F1 terminal2 Connection type M10 L1 L2 12F1 terminal 4 Cable lug width 3 Fastening torque max 50 Nm L 12F1 terminalg Copper cross section 120 240 mm Note Follow the National Electrical Code Figure 4 10 Phase terminals see also Figure 4 7 7 Manual 50603 Revision A1 18 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrolmve A Table 4 5 Neutral connection to the grid transformer see Figure 4 11 Connection Specifications Connection type Fastening torque Cu cross section Fuse at transformer Neutral N N copper rail A La i e tan ki La Fi igu
6. 5 9 7 Carry out the inverter commissioning as described in Chapter 5 2 and turn the inverter on as described in Chapter 5 3 1 Then continue with the following steps 8 While the inverter and its cooling system pump is running open the red vent cap Figure 5 2 of the bleeding valve Figure 4 4 8 by two full turns counter clockwise from the fully closed position for proper automatic operation Bleeding of the pump in particular the motor area is normally implemented automatically after a short period of operation if the pump is only filled partly with coolant it might be necessary to bleed the pump as described in the nstallation and Operating Instructions of the pump manufacturer 9 Check the heat exchanger fan for correct operation The air must be sucked from the heat exchanger through the fan If this is not the case the whole system must be turned off and the power supply cables on the user terminals 48X1 3 and 48X1 4 have to be exchanged Manual 50603 Revision A1 30 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekroinvent 10 If the pressure in the cooling system decreases through the bleeding fill the cooling system with coolant up to nominal pressure of 2 bar 11 Close the filling valve Figure 4 5 9 tight and detach the filling pump Note It is necessary to bleed the cooling system once again after a few hours normal operation of the system take care not to bleed too much liquid otherwise coolant
7. Filling connection 9 Filling valve 10 Circulation pump for the coolant 11 Manometer Manual 50603 Revision A1 13 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolimve Ale Figure 4 6 Hose connection inlet outlet 1 Valve 2 Union connection 3 Gasket Please follow the sequence below to connect the heat exchanger to the inverter 1 Connect the hose Figure 4 4 2 from the upper connection of the heat exchanger to the inverter inlet Figure 4 5 5 using the gasket Figure 4 6 3 2 Connect the hose Figure 4 4 3 from the lower connection of the heat exchanger to the inverter outlet Figure 4 5 6 using the gasket Figure 4 6 3 3 Open the four valves inlet and outlet on the inverter Figure 4 5 3 4 and inlet and outlet on the hoses Figure 4 6 1 counter clockwise 4 Connect the power supply cable Figure 4 4 4 of the fan to the inverter Table 4 8 Connect the blue cable Nr 1 to the OV terminal and the brown cable Nr 2 to the 24V terminal Table 4 2 Heat exchanger installation requirements Requirement Maximum hose length inverter heat exchanger Maximum elevation above inverter level inverter bottom level 9 m to heat exchanger top level Pressure air pressure in the 2 litre expansion vessel 0 5 bar at 20 C and when no pressure in the liquid l Nominal pressure in the cooling system at 20 C Minimum pressure in the cooling system negative pressure h 1 1 bar
8. Serial user interface RS485 Optional cccccccsseeeececeeeeeeeeeeeeeeeeeeaees 27 4 6 15 Interface to Integrated Central Control unit Weather station KOU OVA pac tot et ak ao be E tee a bo n ee ne ok aa a a ee e be ia bete e 27 4 6 16 Power supply for weather Station ccccsscccccseeeecseeeeeeeeeeeeseeeeeeseeeeeens 27 4 6 17 Installation of the GSM Modem optional cccccccssesseeeeeeeeeeeseeeeeees 28 4 6 18 Ethernet CONNECTION cccccceccceececeeceeeeeeceececeeceseeeessueeeseeeeseueesaneessaees 29 5 UNIS SONU curs os a n ki pi ann se Gn EE 30 5 1 Refilling and Bleeding the Cooling Circuit cccccecceseeeeeeeeeeeeeeeceeeeeeeeeeaeeseeeeeees 30 5 2 Inverter COMMISSIONING ccccccccceeeeeeececeeecaeeeeecceeeeeeeeeeeeeeeessaeaseeceeeeessaaaneeeeeess 32 5 2 1 Control and Visualisation Elements ccccccseecceceseceeceseeesseeeeesaaees 32 5 2 2 Important Components OVErVieW ccccccccssssseeceeeeseeeeeeeeeeeeeseaeaeeeeeeees 33 5 2 3 PILE ANS ANNO VA estena E ke aa des EAOa ENKEN te des 34 5 2 4 Commissioning of the Power SeCtiON cccceceseeeeeeeeeeeeeeeeeeeeeeeeeeeaes 35 NO OPEN NON eee ke on eee ene ti ome ee eee ee ae ee ee eee pote tn eee 35 5 3 1 Turning the Inverter ON ccccccccssseeeecceseceesceeeeeeeeeeeeeesseeeeeeeessageeess 35 5 3 2 Turning the Inverter Off ccccccccsssseececeeseeeeseeeeseeeeseeeeeeesseaeeeesseaeeeess 36
9. Service Manual 50603 Revision A1 46 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolimve Al Table 8 2 Cooling system troubleshooting Check the electrical connections of the pressure sensor Cooling system pressure too low Check the static pressure If the pressure is below 1 5 bar fill with coolant up to the nominal pressure Check if the circulation pump Figure 4 5 10 is set to level Ill Check if the temperature has dropped below the required Flow rate of the cooling system is minimum too low Check the electrical connections of the flow rate switch Bleed the cooling circuit and the pump Check the cooling circuit hoses for folds Check the cooling substance temperature measure the temperature of the metal pipes Check the electrical connections of the cooling substance Cooling system overtemperature temperature sensor Bleed the cooling circuit and the pump Check if the heat exchanger fan is spinning Check for obstacles in the way of the airflow Check if the ambient temperature is above the permissible maximum Check the fan filter air intake and air outlet Cabinet overtemperature Note According to the dust density of the ambient air it is possible that the filter pads are clogged after a few weeks and must be cleaned or replaced Check if all cabinet fans are working Manual 50603 Revision A1 47 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolamve A 9
10. is activated by touching the screen 10 minutes after the last activity the display switches to screensaver mode The display can be activated again by touching it Note The images shown below are for illustrative purposes only 7 1 Main Menu Figure 7 2 Main menu Production since operation start Electrical energy production diagram active field String boxes monitoring summary active field System date and time active field Operational parameters Inverter s status active field Service menu active field Settings menu active field MHNDAaAA WND Note Touching active fields leads to system parameters submenus see Table 7 3 and Table 7 6 Manual 50603 Revision A1 38 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q elecrolave Al 7 2 Submenus Submenus are activated by touching the relevant field of the main menu e g settings menu Figure 7 2 8 Figure 7 3 Submenu Language Set button Main Menu button Navigation bar with arrows Submenu tabs ARONS Submenus are arranged in tab form and enable choice of options and parameter setting The choice between the submenus or parameters is accomplished by a navigation bar with arrows left right up down Figure 7 3 3 For parameter changes the relevant setting menus are opened when touching the Set button Figure 7 3 1 The Main Menu button Figure 7 3 2 leads back to the main menu 7 3 Parameter Changes Param
11. must be added again in order to keep the pressure above the required minimum Figure 5 1 Hand pump Figure 5 2 Bleeding valve of the heat exchanger Manual 50603 Revision A1 31 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrolave A 5 2 Inverter Commissioning 5 2 1 Control and Visualisation Elements SOLO 250 Figure 5 3 Control and visualisation elements 1 Emergency stop button 2 Two position switch start stop 3 Main switch 4 VCU Visual Control Unit Touch screen panel for visualisation and control 5 Status signal lamp see Chapter8 Manual 50603 Revision A1 32 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrolmve A 5 2 2 Important Components Overview 7 6 1 2 5 3 4 Figure 5 4 Important components 1 Control unit with status display 2 GSM communication unit GCU optional 3 Operation mode switch in normal operation mode it should be on Stand By Active 4 Overvoltage protection of the PV connections 5 Main switch 6 Grid monitor VDE AR N 4105 optional 7 Insulation monitor optional Manual 50603 Revision A1 33 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckroinvent 5 2 3 Initialisation NOTICE The initial commissioning has to be performed with external control disconnected power limitation emergency stop etc Following steps must be performed 1 oo oS a n o gt Make sure the inver
12. touch screen panel Figure 5 3 4 displays Monitoring 8 Control SOLO Family lf the signal lamp is flashing glowing red an error has occurred see Chapter 8 Set the two position switch Figure 5 3 2 to Start position After a successful startup of the inverter the signal lamp Figure 5 3 5 glows green and a humming from the inverter can be heard If the signal lamp is glowing or blinking red there IS an error or a warning see Chapter 8 lf the signal lamp is off this may be due to a defective light The inverter could still be in operation and live Manual 50603 Revision A1 35 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolimve Al Table 5 2 Status signal lamp see Figure 5 3 5 off In standby mode the system is turned off when the PV voltage System in standby mode or one switched off 7 Check whether the two position switch has been set to Start Wa System cacy te SIAN Tue Wait until the inverter starts green inverter is not working yet glowing System operating Grid feed in active green flashin A warning has occurred during g operation The inverter is still See Chapter 8 green red working A warning has occurred The flashing red inverter has stopped feeding See Chapter 8 energy glowing red ii system is down An error See Chapter 8 as occurred 5 3 2 Turning the Inverter Off NOTICE The sequence for turning the inverter off must be observed Through frequent
13. with the sufficient load carrying capacity The inverter can be mounted on a foundation or on a grounded metal frame No liquid water snow oil coolant etc should ever enter into the cabinet not even during installation Table 4 1 Mechanical requirements tem Requirement Minimum size of the foundation SOLO 250 W x D 800 x 800 mm Maximum inclination of the foundation Load carrying capacity of the foundation gt 1000 kg m Minimum clearance from the cabinet rear side from the cabinet left side from the cabinet right side from the cabinet front side above the cabinet roof Entrance opening W x H 7 Rear wall gt 300 mm Rear side SOLO inverter cabinet 800 x 800 x 1920 mm gt 100 mm gt 500 mm Front NNN Door gt 900 mm Room height gt 2300 mm NNN VII Figure 4 2 Minimum clearances Note Alternative placement of the SOLO inverter only after consultation with ELECTROINVENT Manual 50603 Revision A1 10 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q elecollave A 4 3 Foundation Front view Top view Q D w Opening in the foundation Figure 4 3 Foundation Manual 50603 Revision A1 11 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrolave A 4 4 Installing the Heat Exchanger M n The heat exchanger must be mounted using fixing steel bolts or screws type M12 The heat exchanger Figure 4 4 7 should be mounted outdoors on
14. 3 see Figure 4 13 4 6 6 Installation of the Heat Exchanger Fan Table 4 8 Heat exchanger fan connection Figure 4 15 Specifications 0 24 Voc max 5A 24 Vpc fan power supply OV 2 Manual 50603 Revision A1 21 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrolave A Figure 4 15 Heat exchanger fan supply transformer monitoring external grid monitoring external start stop external E stop see also Figure 4 7 3 4 6 7 Installation of the Transformer Monitoring Table 4 9 Signal connections of the grid transformer monitoring see Figure 4 15 Digital input a wire bridge 48X4 3 Transformer ready signal e g required if not used from an automatic safety device Conect cosca vead 48X4 4 in the transformer cabinet l y Contact open error Digital output 49X3 3 l l l Transformer standby signal Contact closed in operation 49X3 4 Contact open standby Note Transformer standby is used if an electrically controllable switch gear is connected between the transformer and the grid 4 6 8 Installation of the External Grid Monitoring Table 4 10 Signal connections for external grid monitoring see Figure 4 15 Digital input a wire bridge B1X6 4 module of inverter in case of grid Contact closed no error fault Contact open error Digital input a wire bridge 61X5 3 Main contactor control hardware required if not used x deactivation of the inverter s main 61X5 4 contact
15. 6 MAINENANCE 4 woo de sects ie pil ni carte See n ke ek a n n e e a a a n a ki n n 37 6 1 Maintenance of the SOLO Inverter illli llloiliieeeeettrootttaaaaaatoooooooseeaoosoooooooooaassrooonn 37 6 2 Maintenance of the Cooling Circuit cccccccccceccccceeeceseseeeeeeeessaeeeeeeeeeeessaeeeeeeeees 37 7 Operating the Touch Screen Panel of the Inverter and Parameterization 38 7 1 Main MenU Ie ia la neta arnnaieaercienticmdies ncinesieneaedhendionesiaasidnieaueanticdveeeaesienmedeiesnoresedeenecotartesee 38 FA EOIN NI St in nal a lon sake ii a e bk a kep a e pan epay toate ee aka akle po bani kte ie kite 39 7 3 Parameter GNAAG S tn oo nott var kai ka e ia 5 tl a a a a ak al ev pk n ka klin sate 39 7 4 Access Rights to Functions and Parameters cccccseeeeeeeeeeeeeeeeeeeeeeeeesaeeeeeeenas 40 7 5 Inverter Parameter List acepcccecsadsascscencaeenccenwcecbenadgesendndtensensadendentee kon ked D sikse ne 41 7 6 Ethernet setup for Remote Diagnostic ccceeeceeeeeeeeeeeeeeeeeeeeeeeeeesaeeeeeeesaaeeeeeenas 43 Fak St Monitoring sesser par eap EA ES repai 43 PO ENE LO e a a eee ee a 45 8 Diagnostics and Troubleshooting ccccscccccescessseeescessseesecensseeseeeesseeesoeeseeeseoeeseeessonens 46 9 EC Declaration of Conformity srccecscnsxoececectscssevevavesorereeanevancueeeenteetinveedunsnertueceetueeeineens 48 10 Data Sheet SOLO 250 ou aaa anne anana anana nannan aaa nasaa asse sssanssassss
16. 7 8 Events Log For the purpose of status monitoring and diagnostics an events log is available Tap Service or Status field of the main menu to enter the events log It shows records of all events occurred see Figure 7 8 Scrolling through the events is done using or amp An event can be deleted by touching Del Figure 7 8 Events log The status log has the following fields Time stamp Date and time when the event occurred ELECTROINVENT event code Unique event code Type of event Warning the inverter continues working or Fault the inverter stops Event description Details about the detected malfunction Manual 50603 Revision A1 45 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolinmve Al Warning lamp Figure 5 3 5 Off System in standby mode or turned off Flashing green red subsequently inverter operation warning Flashing red Warning inverter is off Glowing red Error state inverter is off Diagnostics and Troubleshooting The system control has integrated warning and error monitoring Warnings do not lead to a stop during operation but might limit the output power When an error is detected the inverter is turned off After the disappearance of the cause of the error the inverter can restart automatically and return to the operation status and new start commands are not necessary This automatic error acknowledgement function is limited to a maximum o
17. Copyright ELECTROINVENT Q eleckrollave ML Installation and User Manual for the SOLO 250 Photovoltaic Inverter Manual 50603 Revision A1 Version 2 02 Copyright ELECTROINVENT Q eleelkrolimve Al Contents 1 BENE OCG ON sists a scene kk ki a a kle kok a in a jn a a a a a a e a a m a e e a e a a a ke e a a a 4 1 1 VSO PAIN C ie ta ee dant ko pu eks p s ak ko ao fese nee n t E abse aye potre not nee e 4 1 2 IMPORTANT SAFETY INSTRUCTIONS ccccccccsseeeeceeeseseeeeeeeeeeeseeeeeeeeeeeeeeaas 4 TES COS ON BO VO AY beton es triye E kk e kf a re ked bati ete 5 1 4 Type lt n el ki ke e ea Ek e 5 2 WarnNINGOS ANG NO OS 1 rek t a ill kl ki a ka a ei n kk e kk e n el a ik n a e e kn a a a A e m in 6 3 PFAMRSDOMUMNG the INVErtel sek kn e kt ot n pa a a E a ak ia 7 3 1 Transport by Crang sssrinin a if a n ae a ke a id n ei e 7 3 2 Transport by FONN Mk ons koke do een er die aid ie bon ane pepe ao dok rape disa 8 A Installation Of RE Inverter 3 cciccccsecctesdciccsssveectennsensesncctescdencsanctssincteaxssecesnedecsbeccsaresenasecteass 9 4 1 LOGO SOIC CO l l set w a k m t tous b ab bank ek ie ki le ia a kab ote sa k d in eski 9 4 2 Mechanical Installation ccccccccccsssceccsesceccesecceeeeecseeseecseueeecsseeesenseesseeeeessasees 10 A FOUMOAU ON Deere eee E ee E eee e bk ee be en eee ee 11 4 4 Installing the Heat Exchanger ccccccccseeececeeeeeceeeeeseeeecseeeeeseaueeeseeeeesseeeessa
18. EC Declaration of Conformity EC Declaration of Conformity Manufacturer Electroinvent LTD 43 Cherny Vrah Blvd 1407 Sofia Bulgaria This declaration of conformity relates to Photovoltaic Inverters Type model SOLO 100 ISC 40 2x12 SOLO 200 ISC 40 3x17 SOLO 250 ISC 40 3x22 SOLO 500 ISC 33 114 SOLO 500 ISC 30 122 The above described product is constructed and manufactured according to the good engineering practice in safety matters in compliance with the essential requirements of Directive 2006 95 EC of the European Parliament and of The Council of 12 December 2006 on the harmonization of the laws of Member States relating to electrical equipment designed for use within certain voltage limits and regarding electromagnetic compatibility in compliance with the essential applicable requirements of Directive 2004 108 EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility meeting accordingly the requirements of the following harmonized European standards Safety of power converters for use in photovoltaic power systems EN 62109 1 Part 1 General requirements IEC 62109 1 2010 Safety of power converters for use in photovoltaic power systems EN 62109 2 Part 2 Particular requirements for inverters IEC 62109 2 2011 Electromagnetic compatibility EMC EN 61000 6 2 Part 6 2 Gene
19. LO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclroliave Al 4 6 11 Digital Interface Specification Table 4 13 Digital interface specification Digital Reads logic level 24 V relay Potential free contact input Active Contact open Inverter e min 24 Voc Inactive Contact closed 24V e min 20 mA OV Cu cross section 0 5 2 5 mm Cable gland 4 5 10mm Digital Drive logic level Potential free contact 24 V relay output Active Contact open Inverter e min 10mA Inactive Contact closed e maxiA Insulation voltage 2 5 KVac 1 min Cu cross section 0 5 2 5 mm Cable gland 4 5 10mm 4 6 12 Active String Boxes with Contactors optional The total number of string boxes is limited to 6 pcs two on each tracker input ELECTROINVENT offers string boxes with contactors The contactor type string boxes are controlled by the SOLO inverter and must be connected according to Table 4 14 and Table 4 15 The feedback is used by all SOLO string box types see Table 4 15 Stand by mode The wake up signal for stand by mode of the inverter is related to PV input 1 Therefore this PV input must always be connected to a PV field in order to make sure the SOLO will start while standby mode is active For contactor string box installation make sure that one string box called overnight string box is controlled separately see Table 4 15 Table 4 14 String box supplies and controls see Figure 4 16 50F 1 1 String Box 1 overnigh
20. Monitoring The VCU of ELECTROINVENT SOLO inverter has the capability of string box monitoring when ELECTROINVENT Smart String Boxes are used There is a dedicated field of the VCU main menu that shows the string box monitoring summary see Figure 7 2 3 It displays the number of detected string boxes and low string current warnings Tapping this field leads to a window displaying the states of the string boxes see Figure 7 6 Figure 7 6 String box states window Manual 50603 Revision A1 43 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolmve Al There are six available string box states explained in Table 7 7 Table 7 7 String box states All string currents are positive no activated faults the average string current for the string box for more than 15 minutes The string current is between 1 A and 0 2 A String current is less than or equal to 1 A Some string currents are less than the defined percentage of Low current K String box fault detected Communication Malfunction in communication between the string box and fault inverter When the SSBs are serially connected via Fibre Optic Line fault interface Figure 4 8 and Line fault on SSB3 is displayed this means that the optical interface between SSB2 and SSB3 is not working properly Scrolling over the string boxes and tapping Details opens a window which gives detailed information about the string currents of the chosen string box
21. TANT SAFETY INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS This manual contains important safety and operating instructions for SOLO 250 photovoltaic inverter Keep it with or near the inverter at all times Photovoltaic installations operate with lethal voltages and the work described here should only be performed by authorized personnel familiar with the installation mounting commissioning and the operation of PV installations This manual must be fully read and understood before installing or commissioning is performed The SOLO product must only be used for its intended purpose Unauthorized personnel are not allowed to open the SOLO product The faultless and safe operation of the product assumes appropriate transport correct storage installation and mounting as well as correct operation and maintenance The relevant regional and country specific regulations and instructions must be obeyed as well as requirements described in this document including placement and installation instructions e g connection profiles torque settings etc Symbols and warning signs used A ee WARNING indicates a hazardous situation which if not avoided could result in death or serious injury NOTICE NOTICE refers to address practices not related to personal injury Failure to observe could lead to property damage Manual 50603 Revision A1 4 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclrolave Al 1 3 Scope of Deliver
22. a 2 m cable lead through the side wall Figure 4 20 Position of the SIM card and antenna connection of the GSM modem Figure 4 21 GSM antenna positioned on top of the inverter Manual 50603 Revision A1 28 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolamve A In case the GSM modem has been supplied as a loan for the commissioning it must be sent back in complete set the module consists of a modem with SIM card interface converter plug DIN rail mounting and antenna as soon as a functional Ethernet connection to the SOLO inverter has been established The return address can be found on the last page of this user manual The antenna is delivered with a magnetic socket and can be positioned on another location on or close to the inverter For a good connectivity make sure that the antenna is not in a metal room container 4 6 18 Ethernet connection Table 4 22 Connection remote monitoring Ethernet see Figure 4 22 49A1 Ethernet connection Ethernet cable with RJ45 connector Figure 4 22 Ethernet connection see also Figure 4 7 3 Manual 50603 Revision A1 29 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolinve Al 5 Commissioning 5 1 Refilling and Bleeding the Cooling Circuit To be performed only if the cooling system pressure differs from 2 bar by more than 0 5 bar at 20 C coolant temperature A properly functioning cooling system is essential for a trouble free operatio
23. a solid wall in a place with no direct sun irradiation The elevation of the top level of the heat exchanger must be less than 9 m above the bottom level of the inverter The heat exchanger should be protected with a roof against rain and the possible effect of frost on the fan The alignment should be executed as shown in Figure 4 4 with the bleeding valve Figure 4 4 8 at the highest point of the cooling system li N Figure 4 4 Connection of the cooling system 1 Cooling system elements and pipe connections on the SOLO inverter cabinet 2 Coolant hose to the inverter inlet 3 Coolant hose to the inverter outlet 4 Fan power supply cable 5 Connection box for the fan s power supply 6 Wall mountings of the heat exchanger 7 Heat exchanger with fan 8 Bleeding valve Manual 50603 Revision A1 12 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrollave A 4 5 Connecting the Heat Exchanger to the Inverter NOTICE At delivery all tubes in the cabinet and the hoses of the heat exchanger are filled with coolant and the entrapped air is bleeded purged The inlet and outlet hoses must not be interchanged Figure 4 5 Cooling system elements and pipe connections on the inverter see Figure 4 4 1 1 Safety valve 2 Liquid drain outlet for maintenance 3 Inlet valve 4 Outlet valve 5 Hose connection inverter inlet 6 Hose connection inverter outlet 7 Expansion vessel 8
24. bserve the relevant regulations for crane operation The cabinet is lifted only by the original transport rings on the cabinet roof Check if they are mounted properly and screwed tight NOTICE The force effect on the rings must be vertical therefore an adequate guidance should be used Otherwise the cabinet can be damaged VANN Figure 3 1 Transport by crane Manual 50603 Revision A1 7 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclrollave A 3 2 Transport by Forklift A n lf the inverter tilts over during the transport people in the vicinity could be crushed resulting in death or serious injury Ensure that no people are in the danger area around the lifted inverter Note The front and back covers of the socket must be removed for the transport see Figure 3 2 and Figure 3 3 Figure 3 2 Disassembled cover for forklift transport Figure 3 3 Transport by forklift Manual 50603 Revision A1 8 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolimve Al 4 Installation of the Inverter Upper connection Heat exchanger SOLO 250 Heat exchanger GSM antenna power supply Control signals Control SPS Ethernet IP grid Modem connection Telephone grid Grid power feed in A IT grid system CO Auxiliary power supply Figure 4 1 Example view of a photovoltaic installation with SOLO inverter SOLO string boxes and grid transformer Lower comnecti
25. eees 12 4 5 Connecting the Heat Exchanger to the Inverter cccccccccceeesesseeeeeeeeeeeaeeeeeeeeees 13 AG EIGGHICALINSIANAL ON ex sis ai kk sa ii a ka kk oreo tees e n ei n ik bi pp a ai 15 4 6 1 Overview of the Electrical CONNECTIONS ccceeeecceceeeeeeeeeeeeeeeeeaeeeeees 15 4 6 2 Schematic Example of SOLO SyStem ccccccssssseeceeeeeeseeeeeeeeeeeeeeaes 16 4 6 3 Power Connections ssirccncessddncncdessneressateoubieedsanesdadeatandadbedesndsbodeoeateanensadee 17 4 6 4 Transformer SpeciHfiCatiON sorso dress and e aii 20 4 6 5 Auxiliary Power Connection cccccccceeeccceceeecseeeseceeeeeeeseeeeeeeeeesseaaeeees 20 4 6 6 Installation of the Heat Exchanger FAN cccccsccccsseeeeeeeeeeeeeeeeeneeeeeens 21 4 6 7 Installation of the Transformer MOniItoring cccssseeecsseeeeeeeeeeeeeeeeens 22 4 6 8 Installation of the External Grid Monitoring ccc csseceeeeeseeeeeeeeaeeeeees 22 4 6 9 External Start Stop Command ccccccccecessseeeeeeeeeeeeeeeeeeeeeeseaeeeeeeeeees 23 4 6 10 External Emergency Stop cccccccssseccccceeeseeseeceeeeeceeeeeeeeeeesseaeseeeeees 23 4 6 11 Digital Interface Specification ceecccccccececsseseeeeeeeeseeeeeeeeeeesseaeeeeeeeeess 24 4 6 12 Active String Boxes with Contactors optional ccccesseeeeeeeeeeeeeees 24 4 6 13 Power Limitation Optional cccccccsseeeeceeeeeeeeeeeeeseeeeeeeeeeeseeeeeeseeeeeeas 26 4 6 14
26. eter values can be selected by using the navigation bar or by touching the display in the area of the desired parameter value Figure 7 4 Parameter value selection The change of the parameter value is done by touching the Set button The Esc button leads back to the previous submenu Manual 50603 Revision A1 39 51 IUM SOLO250 EN V2 02 0415 L L Copyright ELECTROINVENT Q elleclrolimve A 7 4 Access Rights to Functions and Parameters For protection of the system against improper service and unauthorized access some functions are password protected The access levels and permissions are listed in Table 7 1 An example change of access level is shown below The logout is accomplished by setting of system user parameter to User access level It does not require a password Table 7 1 User levels under Settings menu User System monitoring Reading the display values changing language no login required Operator system Setting the display parameters on the administrator start page Internet settings Engineer Installer System installation and maintenance Service ELECTROINVENT System servicing service Designer ELECTROINVENT Reserved for manufacturing purposes development Example of changing the access level to Operator This sequence starts from the main menu 1 Tap Settings followed by User level and Set Using or select Operator and tap Set Using or select Password and tap Set
27. f 5 subsequent attempts When an error has appeared more than 5 times and the cause of the error eliminated the clearing of error status must be done by turning the inverter off and on by the main switch Figure 5 3 3 Table 8 1 Inverter troubleshooting Error pattern Troubleshooting The system e Grid voltage missing e Check if all steps according to turned on or the e Auxiliary supply performed aay SEGR missing e Check the PV voltage in active isplay remains standby operation the systems is dark turned on at Upy1 gt 350 V Warning only e Increased cabinet e Incase of frequent occurrence Inverter temperature check the cooling circuit operate temperature e Short term tolerable grid disturbances The system e Cabinet temperature e Let the system cool down for does not start in too high approximately two hours standby mode Coolant temperature e Check the cooling circuit too high according to Table 8 2 e Grid disturbances e Incase of frequent occurrence inform ELECTROINVENT Service The system e Cooling substance e Check the cooling circuit does not start in flow rate too low according to Table 8 2 n mode l ki mods e Error in the grid e Check the value of the grid connection voltage and frequency at the e Error in PV display connection e Check the electrical connections e E stop pressed of the inverter e Internal error e lf the error stays after turning the main switch off and on inform ELECTROINVENT
28. h blvd 1407 Sofia PO Box 74 Bulgaria Manual 50603 Revision A1 Tel Fax E Mail Web site Tel Fax E Mail Web site Hot line E Mail Web site 51 51 Q electroinvent 359 2 862 14 06 868 70 65 359 2 962 52 63 office elinvent com http www electroinvent com 359 2 862 14 06 868 70 65 359 2 962 52 63 sales elinvent com http www electroinvent com 359 894 66 11 37 service request elinvent com http www electroinvent com IUM SOLO250 EN V2 02 0415
29. l PV power Pou 255 kW ess r Control strategy MPPT Maximum Power Point Tracking Number of PV inputs 3 Each PV input has its own MPP tracker Max DC current on each PV input 220 A DC voltage range for MPPT 350 800 Voc Note reduced maximal power below Umpp 400V Max permissible PV voltage UPvmax 900 Vpc Maximum PV voltage for operation 850 Voc Le start Voltage ripple Upp PV input KE A Surge protection PV input Type 2 Grounding PV input Option connection to PV or PV input User Interface External emergency stop 24 Voc 10 Connect to dry contact Input 20 mA active high Open gt E stop active closed gt E stop inactive Emergency stop Dry contact Output eo velar he Open gt E stop active closed gt E stop inactive Transformer ready 24 Voc 10 Connect to dry contact Input 20 mA active high Open gt not ready closed gt ready Transformer stand b Dry contact 24 Voc 10 Connect to dry contact Input 20 mA active high Open gt stop closed gt start ELECTROINVENT Data logger interface Web Portal Others see under options Manual 50603 Revision A1 49 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelrolimve Al Options Power limitation control BDEW directives Grid monitoring VDE AR N 4105 or Low Voltage Ride Through LVRT Fault Ride Through FRT Potential Equalization Device PED connecting PV input to ground earth fault monitori
30. malfunction they should be replaced with new original ones Inspect cabinet for contaminations and perform relevant clean up Inspect cabinet for loose screws and bolts especially the ones of the electrical connections and perform relevant tightening 6 2 Maintenance of the Cooling Circuit Annual maintenance e Check the system for leakages e Check the hoses and pipes for cracks e Check remove contamination or obstacles from the heat exchanger Checks on fans Blades in good shape No cracks in the blades No abnormal roaring whistling or grinding sound during operation Checks on the pump No abnormal roaring whistling or grinding sound during operation Filling in the cooling system back to nominal pressure and ventilation see Chapter 5 1 For more details please check the Maintenance Manual Manual 50603 Revision A1 37 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclroliave Al 7 Operating the Touch Screen Panel of the Inverter and Parameterization The inverter is equipped with a touch screen panel also called VCU Visual Control Unit positioned on the front door It serves the local operation visualization and system configuration After switching on the Monitoring 8 Control SOLO Family appears as startup screen on the VCU Monitoring 8 Control SOLO Family v1 15 15 Figure 7 1 Monitoring amp Control SOLO Family startup screen The main menu see Figure 7 2
31. n of the inverter That is the reason why the cooling system has to be filled up and bleeded properly A n Avoid contact between the coolant and skin or clothes Use gloves and safety goggles Failure to observe this warning could result in serious injury A n The inverter must not be in operation during the refilling Use only original ELECTROINVENT coolant For bleeding and refilling of the cooling circuit proceed according to the following sequence 1 Fill the filling pump vessel Figure 5 1 with fresh coolant and close the pump 2 Connect the coolant filling hand pump to the filling connection Figure 4 5 8 by using the supplied small diameter tube Small diameter minimum air volume Make sure the backflow valve of the filling pump is closed Open the filling valve Figure 4 5 9 Open the backflow valve of the filling pump for a short time in order to fill the tube completely with coolant from the side of the inverter no air should be pumped in the cooling circuit of the inverter If the pressure of the cooling system is too low to fill the tube with coolant the tube has to be filled with coolant before connecting it to the inverter 6 Fill the cooling system by pumping the filling pump while constantly monitoring the manometer Figure 4 5 11 The cooling system has to be filled up to 2 bar as the bleeding process decreases the system pressure When 2 bar is reached close the filling valve Figure 4
32. ng and earth current measurement Communication SCADA Modbus RTU EIA 485 and Modus TCP IP GSM or Ethernet Data logger SolarLog Meteocontrol others on request Cabinet and Ambient Conditions Dimensions W x D x H ae X B40 X 1329 Weight m approx 650 ka n Ambient temperature range Taw 20 1450 O OO O Humidity 15 95 Enclosure type according to EN IP54 60529 Maximum elevation above sea level Cooling Liquid cooled Coolant concentration Static pressure of coolant p 2 bar 0 5 bar Heat Exchanger Dimensions W x D x H 695x310x563mm Weight m 18 kg Or Air inlet temperature range The 20 45 C ed Hose size d 15 mm 25 mm Inside diameter Outside diameter Hose length l 10m Inverter to heat exchanger i ka Ak j a ai epi a Heat exchanger top level inverter bottom level Standards CE conformity EMC EN 61000 6 2 EN 61000 6 4 INVERTER HEAT EXCHANGER 563 Ordering Information For technical or commercial information please contact the ELECTROINVENT sales office see Contacts on last page of this user manual Manual 50603 Revision A1 50 51 IUM SOLO250 EN V2 02 0415 Office Sales Service Copyright ELECTROINVENT Contacts Q electroinvent 43 Cherni Vrah blvd 1407 Sofia PO Box 74 Bulgaria Q electroiinvent 43 Cherni Vrah blvd 1407 Sofia PO Box 74 Bulgaria Q electroinvent 43 Cherni Vra
33. on Outlet lt Intlet gt PV module String box Communication PV input 1 PV input 2 Communication PV input 3 4 1 Location Selection e The inverter cabinet is intended for indoor operation e The inverter should be positioned as close as possible to the transformer lt 5 m e The place must meet the requirements for installation of electrical operation devices and must be ventilated The heat output of the components that are not directly liquid cooled is up to 2500 W at maximum power e To avoid additional heating a location without direct sun irradiation should be chosen e The cabinet must be easily accessible for operation and maintenance e The operating elements main switch emergency stop button start stop switch are mounted outside the cabinet and should be protected from unauthorized manipulation e Assure a dust free environment to prevent filter clogging and malfunction of the inverter cooling system In rooms with high pollution the air filters have to be checked in shorter intervals e Make sure that the minimum required clearances to surrounding objects are respected emergency exit route maintenance works air cooling etc see Figure 4 2 Manual 50603 Revision A1 9 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclroliave Al 4 2 Mechanical Installation The requirements are listed in Table 4 7 The inverter must be installed on a firm horizontal surface
34. onososssassososososssoosososososononnnonn 49 Canac S vizit a lk ii ie kl e it ti E ee e nin 51 Manual 50603 Revision A1 3 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolinmve Al 1 Introduction This high quality ELECTROINVENT photovoltaic inverter is intended for feeding photovoltaic energy into the public grid with a very high efficiency Through the liquid cooling of the inverter heat is taken out efficiently from the operating room 1 1 Disclaimer ELECTROINVENT delivers optimized tested equipment such as inverters and string boxes for Photovoltaic Power Plants The correct integration and interconnection of the equipment must be made according to the manuals and datasheets of ELECTROINVENT and is the responsibility of the System Integrator ELECTROINVENT does not accept liability for system design dimensioning of system related parts installation or the performance of the system The content of this manual is regularly reviewed for compliance with the hardware and software operation and any corrections are included in later editions Every effort is made to ensure the details in this manual are accurate Warranty claims will not be accepted in case of violation of the installation instructions and we do not accept liability in case of accidents caused by inappropriate handling or work performed by unauthorized personnel which results in personal injury or damage to devices or any other subsequent damages 1 2 IMPOR
35. or in case of grid fault Contact closed in operation Contact open E stop Manual 50603 Revision A1 22 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclrolave Al 4 6 9 4 6 10 External Start Stop Command External start stop command has the same function as the two position switch start stop Figure 5 3 2 Table 4 11 Start Stop see Figure 4 15 Digital input a wire bridge 49X11 3 required if not used 49X11 4 peal slay stopp Contact closed Start position Contact open Stop position External Emergency Stop In case there is an external emergency stop circuit it must be interposed to the emergency stop circuit of the inverter through the corresponding terminals The bridge 49X1 3 49X1 4 has to be removed and replaced by the connection to the client s potential free contact for emergency shut down The activation of the emergency stop leads to deactivation of the inverters power connections the control continues to operate Failure to observe this warning could result in death or serious injury Table 4 12 Inverter control see Figure 4 15 Terminal Function Specification Digital input a wire bridge 49X1 3 required if not used 49X1 4 m l Contact closed E stop inactive Contact open E stop active Digital output Contact closed E stop inactive Contact open E stop active 49X2 3 Signalization 49X2 4 Emergency stop E stop Manual 50603 Revision A1 23 51 IUM SO
36. ote Diagnostic The remote diagnostic and inverter data acquisition is performed via Ethernet or GSM modem connection In order to provide connection to the ELECTROINVENT Remote Diagnostic System the VCU of each inverter must be connected to the Internet via an Ethernet cable with RJ45 connector and visible for ELECTROINVENT For this purpose the local network at the PV plant must be configured The local network could be based on ICC Integrated Central Control or on customer s specific router When the network is not factory preconfigured the customer has to set up the network parameters of each VCU and send the access parameters to the ELECTROINVENT service centre The Internet parameters have to be taken from your network system administrator or Internet Service Provider Example of IP address setting 1 Change the access level to Operator as shown above From the main menu tap Settings and then Internet Using or select IP Address and tap Set Enter the IP address using or and the number key pad and tap Set Using or go to the next parameter and proceed in the same way Soe S amp S bP After setting all needed parameters tap Main Menu The VCU will restart and the changes will take effect After completion of the VCU and the network settings please call ELECTROINVENT for connection testing For further questions on network configuration please call the ELECTROINVENT Service Centre 7 7 String
37. r is in Converter The system control is always control on active standby when the voltage on standby the touch screen display tracker 1 is high enough and the connections to RDS and Web portal are not available Used when the auxiliary supply connection does not provide supply to recover from standby Manual 50603 Revision A1 34 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q electroinvent 5 2 4 Commissioning of the Power Section The commissioning of the inverter s power section is executed according to the following sequence 1 Turn the PV modules on by using the string box main switches Check the correct polarity of all PV inputs with a multimeter Turn the system on by setting the two position switch to Start position Figure 5 3 2 During normal operation the signal lamp Figure 5 3 5 glows green and a humming from the inverter can be heard If the light is red or if it is flashing red see Chapter 8 for error handling 4 The Inverter is now ready for the set up of external control 5 3 Operation 5 3 1 Turning the Inverter On Turning the inverter on must be performed according to the following sequence 1 2 3 4 5 o gt A n Set the two position switch Figure 5 3 2 to Stop position Turn the PV modules on by using the string box main switches Turn the grid connection and the auxiliary power supply transformer on Turn the main switch on Figure 5 3 3 Wait until the
38. re 4 11 N copper rail see also Figure 4 7 5 Table 4 6 Protection earth connection to the grid transformer see Figure 4 12 Connection type M10 PE copper rail Fastening torque 25 Nm Copper cross section 120 mm Protection earth PE e li j r L J ka Figure 4 12 PE copper rail see also E 4 7 2 Manual 50603 Revision A1 19 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT 4 6 4 4 6 5 Q ellectroinvent Transformer Specification NOTICE The SOLO inverter must not be connected directly to grid An external transformer is required Transformer specification e Rated power 250 kVA e Rated voltage at inverter side 400 V e Connection group Dyn5 or Dd if VDE AR N 4105 is not required e Neutral not grounded if the star point of the transformer is on the inverter side For the option VDE AR N 4105 the neutral point must be connected to the N copper rail see Table 4 5 A grounded screen is mandatory between primary and secondary windings Several inverters can be connected to a common transformer but a separate secondary winding set is needed for each inverter floating IT grid Auxiliary Power Connection NOTICE The connection points of user contact spring cage terminals Chapters 4 6 5 to 4 6 16 are opened with a standard screwdriver After the conductor has been inserted into the terminal compartment the screwdriver is removed and the conductor automa
39. rial number of the inverter Manual 50603 Revision A1 5 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclrollAve ak 2 Warnings and Notes MA n The local installation standards must be obeyed The device must only be installed operated and maintained by qualified personnel The device carries lethal grid and PV generator voltages Consider a capacitor discharge time of 10 minutes And beware that an automatic restart can follow a grid or photovoltaic voltage failure Consider all safety instructions displayed on the inverter and in the installation and user manual A n lf any information is unclear please refer to ELECTROINVENT Service Centre NOTICE Loss of warranty The cabinet must not be damaged and no holes are allowed to be drilled in the cabinet Any transport damage must be reported to ELECTROINVENT Manual 50603 Revision A1 6 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolimve Al 3 Transporting the Inverter In order to avoid transport damage the following points must be strictly obeyed 1 The SOLO inverter must always be stored and transported in a vertical position 2 The SOLO inverter cabinet can be transported by crane or by forklift 3 1 Transport by Crane A n lf the inverter falls during lifting persons in the vicinity could be crushed resulting in death or serious injury Make sure that no persons are in the danger area around the lifted inverter O
40. ric standards Immunity for industrial environments IEC 61000 6 2 2005 Electromagnetic compatibility EMC EN 61000 6 4 A1 Part 6 4 Generic standards Emission standard for industrial environments IEC 61000 6 4 2006 A1 2010 Issued by J Torchanov CEO Electroinvent LTD This declaration confirms the compliance with the quoted directive but it does not constitute any warranty as to properties The safety information contained in the product documentation supplied must be adhered to Sofia 15 05 2015 J Torchanov Electroinvent LTD El jt CE Conformity SOLO Figure 9 1 EC Declaration of Conformity Manual 50603 Revision A1 48 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleelkrolimve Al 10 Data Sheet SOLO 250 Grid Data Nominal AC power Pac 250KW pe 8 10 15 AC nominal current lao 860A 10 96 Option 60 Hz Grid structure n n n Surge protection Yes n n IT Harmonic distortion THD lac 0 9 capacitive 0 9 inductive P fact FO igs MEN a n kai e Note P Q capability curve available on request Max efficiency 98 0 Yo po 97 7 n aaah PO 230 Vac 10 Yo 15 Yo TN S surge protection type 2 either external or generated 50 Hz Option 60 Hz internally At standby At full power Max auxiliary power consumption 5 W 650 W Note Depending on the type of the string boxes used they may have additional consumption Photovoltaic Data Nomina
41. t string box 50X2 4 Contactor control 50F2 1 String Box 2 50X4 4 Contactor control SOF 3 1 String Box 3 50X6 4 Contactor control Inactive 0 V contact open 250 Vace max 1 A Active 50F4 1 String Box 4 50X8 4 Contactor control 50F5 1 String Box 5 50X10 4 Contactor control 50F6 1 String Box 6 Manual 50603 Revision A1 24 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrolave A oaa Contactorcontror Note String box 1 overnight string box has an additional function in standby mode of the inverter during the night The PV output power cables from this box have to be connected to PV input 1 q ki ttt ty eS i J ui mon Ce uy eae e i m T a ia Bia La acha bhh wet i A a in a aa So Figure 4 16 String box supplies and controls see also Figure 4 7 3 Table 4 15 String box feedbacks see Figure 4 17 50X13 3 String Box 1 Warning 50X13 4 overnight string box Feedback for contactor and surge protection status 50X14 3 String Box 2 Warning SOX14 4 Digital inputs 50X15 3 Sinn Dor Gwar Contact closed Warning inactive 50X15 4 mings ll Contact open Warning active 50X16 3 l String Box 4 Warning At delivery each input is short connected by 50X16 4 i i wire bridge The bridge must be removed 50X17 3 before connecting the feedback cable String Box 5 Warning l l 50X17 4 Not used string box feedback terminals in SOLO inverter have to be short connected poe S
42. ter s electrical connections are correctly executed and the cooling circuit has been properly installed Turn the main switch off Figure 5 3 3 Set the two position switch Figure 5 3 2 to Stop position Check the correct polarity of all PV inputs with a multimeter Release the emergency stop button Figure 5 3 1 including a possible external emergency stop circuit Turn the grid connection and the auxiliary power supply transformer on Turn the main switch on Figure 5 3 3 Wait until the touch screen panel Figure 5 3 4 displays Monitoring amp Control SOLO Family Activate the main menu by touching the display Check the grid voltage and frequency displayed in the main menu If the voltage is 400 V and the frequency 50 Hz the grid connection is correct Make the settings in the touch screen panel according to the description in Chapter 7 language date time Installed power and PV start voltage Internet parameters etc Setup communication for remote diagnostics according for the chosen medium modem Ethernet For details see Chapter 7 6 Table 5 1 Operation mode switch see Figure 5 4 3 State Inverter function Application Used when the auxiliary supply Enables the inverter to go in internal or external is not stand by mode when the power interrupted by the transformer Stand By on the PV inputs is too low standby output Table 4 9 active The inverter recovers from Note When the inverte
43. tically makes contact The auxiliary power supply 230 V 50 60 Hz can be implemented as internal default or as external power supply When the internal auxiliary supply connection is used then the supply of the inverter control is connected internally through the main switch to the power connections L1 L2 L3 see Table 4 4 Note The inverter is delivered with wire bridges 12X5 3 12X5 4 and 12X6 4 12X6 3 connected internal auxiliary power supply by default see Figure 4 13 Figure 4 13 Wire bridges for internal auxiliary power supply see also Figure 4 7 8 Manual 50603 Revision A1 20 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrollave A External power supply 230 V grid external fuse 10 A is recommended where a low tariff grid power supply is available see Table 4 7 Table 4 7 External auxiliary power supply see Figure 4 14 Terminal Connection type Cu cross section External supply configuration Spring cage 1 5 2 5 mm on Input L Spring cage 1 5 2 5 mm External grid L 25X4 4 Input N Spring cage 1 5 2 5 mm External grid N Note Never supply the inverter from a source controlled by Transformer standby output signal see Table 4 9 because it will not be able to recover after signal activation Figure 4 14 External auxiliary power IN see also aque 4 7 3 Note In case of external auxiliary supply remove the bridges for internal supply 12X5 4 12X5 3 and 12X6 4 12X6
44. tions to the grid transformer 8 Wire bridges for internal auxiliary supply Manual 50603 Revision A1 15 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleclroliave Al 4 6 2 Schematic Example of SOLO System D Q Q gt Mn amp S lt lt z Lu aza Switchgear gt i k a 9 o N 9 rq Q OOOO O ORINI cos st o XK KK a 60 00 00 N tro i 25X3 4 O 25X4 4 O i Rx O 2 ti TXO 61X4 1 I O 61X4 2 ee O 61X3 1 50X12 4 O 61X3 2 50X18 3 O a 50X18 4 O 6 6 Power limitation command 0 Grid operator interface Power limitation command 30 Power limitation command 60 1X2 2 10X3 Q men Lan 10X3 LI 1X1 2 ul O Lol 2075 O A TT E 50X10 4 Q a ol Gn ou A 50X17 4 e an 10X3 O 10X3 GOL O wE e e 50x8 4 Oi To Oe ou m Do a N E 10X2 Q 10X2 aie ei oe n 50x6 4 OH ee oo n 50X15 4 O Rann 10X2 QO EE nn 10X2 ke e O49X10 1 0 49X9 1 i O 49X8 1 O49X12 1 tO 49X13 1 i O O I 50F2 O e soxa GE e oO nn A A 50X14 4 O 10X1 Q 10X1 m O ri Q O O O 1O n O Power limitation command 100 vo Ethernet connection 17 27 O 49XA1 SOLO 250 Weather PE connections are not shown on the circuit diagram s 50F1 50X2 4 50X13 3 O DAL 50X13 4 O 48X1 4 TRO Note Sen O C oO X
45. tring Box 6 Warnin by wire bridges 50X18 4 2 Note For details see SOLO String Box manual Manual 50603 Revision A1 25 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolinmve Al 4 6 13 Figure 4 17 String box feedbacks see also Figure 4 7 3 Table 4 16 SSB serial glass fibre optic interface see Figure 4 18 Terminal Specification Glass fibre optic Cable type Outdoor UV light X l Transmit data resistant armored Fibre type Multimode 62 5 125 or 50 125 Glass fibre optic Cable end port ST type Receive data Recommended A VQ BN H 1x4 Corning Cable Systems Note SSB RS485 interface is available on request je L TX o SE m wfc y d Figure 4 18 Terminals for serial interface see also Figure 4 7 6 Power Limitation optional Certain grid operators demand a power limitation The interface is prepared in a way that the signal lines can be easily connected Table 4 17 Power limitation see Figure 4 19 Ee 61X1 1 Input power limitation 61X1 2 to 100 Digital inputs connect a wire bridge on 61X2 1 Input limitation APU power Mires 61X1 1 61X1 2 if not used 61X2 2 to 60 61X3 T Input power limitation Contact closed active 61X3 2 to 30 Contact open inactive 61X4 1 Input power limitation 61X4 2 to 0 Note The limitation refers to the nominal power of the PV installation Manual 50603 Revision A1 26 51 IUM SOLO250 EN V2
46. turning off by using the main switch or the E stop button during operation some components are excessively worn out Improper operation of the inverter may lead to the warranty being void Observe the following sequence when turning the inverter off 1 Set the Two position switch Figure 5 3 2 to Stop position Turn the main switch off Figure 5 3 3 Disconnect the PV modules by using the string box main switches gt w p Turn the auxiliary power supply and the grid connection transformer off Manual 50603 Revision A1 36 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleckrollave A 6 Maintenance A The Installation of the inverter must only be performed by authorized personnel The absence of voltages grid and PV lines must be ensured before and during maintenance work Consider capacitor discharge of 10 minutes after switching the power connections off Failure to observe this warning could result in death or serious injury NOTICE Warranty void if improperly maintained Note A service contract with ELECTROINVENT including all preventive maintenance is recommended 6 1 Maintenance of the SOLO Inverter We recommend an annual maintenance of the SOLO inverter including following inspections e Inspect air filters of every fan In case of contamination they have to be replaced with new original filters Check fans for abnormal noise whistling or grinding sound during operation In case of
47. urs displayed on the main menu see Figure 7 2 6 Status colour s Glowing yellow system is in Initializing Ready or Running state Flashing cyan yellow system is in Warning state The system is operating but some warnings have occurred Flashing red yellow system is in Fault state The system has stopped Table 7 6 System parameters description part 2 Main menu active fields Date Time Figure 7 2 4 Shortcut to Settings gt Date Time submenu Energy Display Figure 7 2 2 String monitoring Figure 7 2 3 Diagram 1 Magnified image of the diagram Settings Display parameter Selection of parameter to be displayed Time range Selection of the time period to be displayed Display of string status information e Number of logged string boxes e Low current warnings String box 1 100 String box status details status e Current of each string e Average current for the box e Average current for faulty strings Settings Number of string Displays the number of installed string boxes boxes Low current Setting the threshold for low current warning at of warning When the current on a string average string is less than this value for 15minutes a current warning is displayed Activate string Switching on off string current monitoring monitoring function Manual 50603 Revision A1 42 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT Q eleekrolimve Al 7 6 Ethernet setup for Rem
48. x Figure 4 8 Schematic example of SOLO system Manual 50603 Revision A1 16 51 IUM SOLO250 EN V2 02 0415 Copyright ELECTROINVENT 4 6 3 A n Q eleckroinvent The SOLO inverter can be connected to several external devices Most of them are shown on Figure 4 8 e ELECTROINVENT active string boxes with contactors e Transformer with feedback signal e Emergency stop circuit e Grid operator interface Inverter control start stop power limitation e GSM or line modem for monitoring e Ethernet for monitoring e ICC Integrated Central Control unit e Weather station Power Connections Potentially lethal voltage Even if the main switch is turned off the AC and PV power terminals and the auxiliary supply could have lethal voltage After complete separation from the grid and from the PV generator wait 10 minutes before opening the door and removing the protection cover Failure to observe this warning could result in death or serious injury NOTICE Respect the correct PV polarity Wrong polarity of the PV inputs can cause a short circuit of the PV panels Never connect the different inverter PV inputs in parallel Note When planning and installing the photovoltaic plant a uniform distribution of the installed power onto the three PV inputs of the inverter must be ensured See the maximum PV input current in the datasheet The power connection has to be done according to Table 4 3 and Table 4 4 Table
49. y Table 1 1 Scope of delivery Quantity 1 pcs SOLO 250 PV Inverter cooling system filled with liquid 1 bar pressure 1 pcs Cabinet key acs Heat exchanger filled with liquid O bar pressure with wall mountings and p connection box 1 pcs Hand pump for filling liquid in the cooling system 2x10m Hose outer diameter 25 mm with pipe union shorter hoses on request 10m Power supply cable for the fan of the heat exchanger 10 pcs Quick fastener buckle 25 mm for hose mounting 3 litre Coolant 45 ethylene glycol in the hand pump 1 4 Type Label The type label with the product identification is located at the top left corner on the inner side of the cabinet door Q elleckroinvent CERTIFIED eww tuv Gom Manufactured by Electroinvent OOD ISO 9001 certified i 1 Inverter type model SOLO 250 ISC 40 3x22 Circuit diagram No Vx xx Rxx a PV voltage Maximum Rated ambient Max amb temp range PV current temperature heat exchanger U 350 800V 1 3x 220A T 20 50 C Ta 50 C Nominal Nominal Nominal Nominal line power line voltage line current line frequency P 260 kW U 360 V 290 A f 50 Hz Power factor Protective Ingress Grid cos class protection standards 0 9 Class IP 54 VDE 0126 1 1 Production date Serial number April 2015 SOLO 250 OPT x x XX XXXXX 3 Figure 1 1 SOLO 250 type label 1 Product identification 2 Valid electrical circuit diagram 3 Se
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