User Manual - Solar
Contents
1. 5 1 Electrical Parameter Comparison Table of Parameters for Each Type of Battery Sug y gaea eene goea aeaea gites user UserDetines Parameter Name Parameter Value Overvoltage Disconnect Voltage Model ML2440 ML2440 LI ML4830 ML4830 LI Equalizing Voltage System Voltage 12V 24V Auto 12V 24V 36V 48V Auto Boost Voltage Floating Volt No Load Loss 0 7W 1 2W ese ies Vonsuo enne Ol Battery Voltage 9 35 9 70 Low Voltage Disconnect Restoring Voltage Max Solar Energy Input Voltage 150V Under Voltage Alarming E Restoring Voltage i Under Volt Max Power Point Voltage Scope Battery Voltage 2V 120V Alarming Voltage Rated Charging Current 40A 30A rote Voltage Discharging Limit Rated Load Current 20A voltages Toi 10 6V 10 6V 9 17V Over Discharge K Max capacitive load capacity 10000uF Delay Time 55 5s 1 30s Equalizing Duration 4 2QMin 120Min 0 600Min FOOWW 12V Equalizing Charging o a 250D 0 Bi to 520W 12V 800W 24V Interval B izing charging PV System Max Input Power y P 1040W 24V 1200W 36V Boost Duration Time 10 600Min 1600W 48V The User battery is customized battery The system s default voltage parameters are consistent with sealed lead acid battery parameters When modifying battery charging and discharging parameters MPPT Tracking Efficiency gt 99 observe the following logic Overvoltage Disconnect Voltage Charging Limit Voltage gt Equalizing Voltage gt Boost Voltage gt Conversion2. 10 3 Product Operation and Display 3 1 LED Indicator PV array Indicator Indicate solar charge controller current charging mode BAT Indicator Indicate battery current state LOAD Indicator ERROR Indicator Indicate load switch and state Indicate whether solar charge controller is currently normal working gt ERROR Indicator Indication State Battery State Off System Operation No Abnormalities Steady On System Abnormal 3 2 Buzzer After abnormality occurs the buzzer sends out two short and along buzzing sound gt PV Indicat Buzzer Buzzing State Abnormality Type array indicator Off System no abnormalities or buzzing for 1 minute and then stop NO Graph Indication State Charging State Battery Over Discharge Under Voltage Load Short Circuit Buzzing for 1 minute Over Load Solar Controller Over Temperature and Battery auk Steady On MPPT Charging Overstemperature Buzzing for 15 seconds Battery Under Voltage Q LI LI Acceptance Slow Flash On 1s Off 1s cycle 2s Boost Charging Constant Buzzing Battery Overvoltage PV Reverse Connection PV Overvoltage 9 M TL M Foar Single Flash On 0 1s Off 1 9s cycle 2s Floating Charging 3 3 Key Operation EQUALIZE Fast Flash On 0 1s Off 0 1s cycle 0 2s Equalizing Charging A Up Menu page up parameter decrease n n n n n n CURRENT LIMITE
3. System connecting line is selected according to current density of no greater than 4A mm2 oo Connect the solar charge controller grounding terminal to the ground 2 2 Wiring Specifications Wiring and installation mode must comply with national and local electrical standard requirements Battery and load specifications must be selected according to the rated current Refer to the following table for wiring specifications Model Rated Charging Current Rated Discharging Current Battery Wire Diameter Load Line Diameter ML4830 30A 20A 8 mm 5mm ML2440 40A 20A 10mm 5mm 2 3 Installation and Wiring POP A D AY RR RR AY LY LY A A Warning Explosion risk Do not install the solar 2150mm 44 4 4 T Hot Air charge controller and open type cell in the same closed space Do not install in closed place where battery gas may gather A Warning High pressure danger Photovoltaic array may generate very high open circuit voltage Before wire connection disconnect the breaker or insurance Be careful in the process of wiring A Attention When installing a solar charge controller make sure there is enough air flowing through the cooling fin of the controller Leave a space of at least 150 mm up and down the solar 2150mm 7 T T T 4 Cold Air charge controller to ensure natural heat loss through convection If installed within a closed cabinet ensure reliable heat dissipation through the cabinet body
4. Figure 2 1 Installation and Heat Dissipation 08 Step 1 Selecting an installation location Avoid installing solar charge controller in a place where there is direct sunlight high temperature or easy water inflow Ensure the surrounding area of the solar charge controller is well ventilated Step 2 First place installation guide plate at proper position then use pen and mark on installation location drill four installation holes at marked places of suitable size and fixe with screw Step 3 Fix the solar charge controller On the installation surface use a pen to mark the positions of four mounting holes and then move away solar charge controller Drill four size suitable mounting holes at four marked positions and fix screws in advance align fixing holes of solar charge controller to on the four fixed screws and then hang it up Figure 2 2 Fix the solar charge controller Step 4 Wiring Remove the two screws on the solar charge controller panel and then start wiring For installation security we recommend the following wiring sequence However wiring without following this order will not damage the solar charge controller esueg dw Figure 2 3 Wiring 09 e A A A gt External temperature sampling interface connection Battery voltage sampling line connection Communication cable connection Co
5. Before installing or adjusting the connecting wire of the solar charge controller make sure that the photovoltaic array wire and insurance or circuit breaker near battery terminal are disconnected 7 After installation check whether all line connections are solid Bad connections may cause hazards due to heat accumulation A Warning indicates risky operation Security preparation is required before operation A Note indicates destructive operation Ys Tip indicates advice and tips for the operator 01 Catalog 1 Product Introduction E III MAMMA LAPSI CDI cane tienen te aon ete 03 1 1 Product Overview and Features sees 03 12 Product Features ses nnn 04 1 3 Introduction of the Maximum Power Point Tracking Technology 04 14 Introduction of Charging Stages ee 06 2 Product Installation Paldsas dua va ivi FEX Oo Dee CER XGA T PERRA Far Wee oo Pe ad a d dca ua Da 2 1 Installation Precautions 2 2 Wiring Specifications 2 3 Installation and Wiring 3 Product Operation and Display 1 1 0 eee 11 31LEDIndiCatOr eerte nre nnn i eia 11 232 B zzaf tenses eee See eee ets vci i O 12 3 3 Key Operation eee 12 3 4 LCD Starting and Main Interface Display 0 12 3 5 Load Mode Setting Page 15 3 6 System Analysis Page eee 16 37 System Log Page tsetse tinea 17 3 8 Parameter Setting InterfaCe sedes ette ie ee tein teet ue 18 3 9 Production Information Page ttre 19 4 Product Protection
6. Efficiency lt 98 Temperature compensation coefficient 3mv C 2V Default Floating Charging Voltage gt Boost Restoring Voltage Working Temperature 35 C 45 C Overvoltage Disconnect Voltage Overvoltage Disconnect Restoring Voltage Protection Level IP32 Low Voltage Disconnect Restoring Voltage Low Voltage Disconnect Voltage Discharging Limit Weight 2 3Kg 2 Voltage Max Wiring Size 25mm a A 7 FO Under Voltage Alarming Restoring Voltage Under Voltage Alarming Voltage2 Discharging Limit Communication Mode RS485 RS232 Voltage Altitude lt 3000m Boost Restoring Voltage gt Low Voltage Disconnect Restoring Voltage Product Size 226 182 81mm 21 22 6 Conversion Efficiency Curve 7 Product Size 6 1 12V System Conversion Effici
7. Page Battery Voltage Charging Power Charging Page Indicator Load On Off State Discharging Current Environment Temperature Discharging Power Discharging Page Indicator 13 G Load Mode Setting Page LIOJA L ilgih t o Switch load page can be seen when load mode is manual mode 15 Tl ul rin L H o lid vio NIQ Wn D a System Analysis Page Product Information Prloidiuci t nifjo Mile n u s 14 3 5 Load Mode Setting Page gt Load Mode Introduction Step Long press setting key to save and exit Setting is successful The solar controller has five load work modes with modes referred as follows Code Mode Description Pure light control light on at night off during daytime Light time control for 1 14 hours When there is no sunlight the solar panel voltage is below the light control ON voltage solar charge controller will open load after delay for a certain time when the sunlight appears solar panel voltage is above light control OFF voltage solar charge controller will shut down the load after delay for a certain time When there is no sunlight the solar panel voltage is below the light control ON voltage solar charge controller will open load after delay for a certain time
8. jaued ejos 1 4 Introduction of Charging Stages As a stage of charging MPPT cannot be used separately but must be combined with charging modes such as boost charging floating charging and equalizing charging to complete battery charging together Acomplete charging process includes fast charging maintaining charging and floating charging The charging curve is as follows Battery Voltage d 9 A B c Bulk Charging Constant Charging FloatCharging Equalize Boost Float Recharge _ Time Battery Voltage Duration Time 2h i Range 10 180min i Cumulative Time 3h Max Current Time Figure 1 4 Battery Charging Stage gt Fast Charging In fast charging stage battery voltage is below the preset value equalizing boost voltage of full voltage The solar charge controller will perform MPPT charging and provide the maximum solar power to charge battery After battery voltage reaches the preset value the controller conducts constant voltage charging gt Maintaining Charging When battery voltage reaches the preset value for maintaining voltage the solar charge controller performs constant voltage charging and this process does not involve MPPT charging At the same time charging current declines gradually over time There are two stages in maintaining charging which are equalizing charging and boost charging The two charging processes are not repeated processes Equalizing charging i
9. which can display information of solar panel voltage charging state charging current battery voltage and charging power Load state information real time display which can display information of battery voltage load switch state discharging current environment temperature and discharging power Load Mode Setting Page Load work mode adjustment page Yes Manual switch load page The page is available only when load mode is manual mode 15 not displayed in other modes In this page load can be turned on and off from keys directly System Analysis Page System Log Page System analysis page can view charging AH discharging AH work days and system abnormality information Log page can view solar controller historical information up to 5 years at most including daily min battery voltage battery max voltage daily charging AH and daily discharging AH and etc Yes Yes Parameter Setting Page Parameter settings page can set some parameters of solar controller including charging voltage discharging voltage temperature compensation coefficient communication baud rate and etc Yes Product Information Product information can view solar controller serial number and version information Yes Charging Page Display Solar Panel Voltage Charging State Charging Current V MPPIPIT 2 v 2 Battery Voltage Discharging Display
10. 19 L CON VOL Light Control Voltage 4 40V 5V 20 L CON DELAY Light Control Delay Time 1 60Min 5Min 22 MODBUS ADDR Modbus Address 1 250 1 24 BACK LIGHT Back Light Delay Time Steady on 10 60Sec 10Sec Table3 8 All parameters can be set and viewed under User 18 3 9 Production Information Page You can check the controller model serial number software and hardware version etc to learn about the product For detailed information please see Table 3 9 4 Product Protection Function and System Maintenance 4 1 gt gt V VV WV gt gt VV System Information Parameter Example ML4830 15100032 00 05 00 00 03 00 Table 3 9 No Name 1 Model Model 2 Serial Number HW Hardware version SW Example Note Solar charge controller model The 32nd set of October 2015 Hardware version V0 5 0 Software version Serial Software version V0 3 0 Protection Function Introduction Waterproof Protection Waterproofing Grade IP32 Input limit power protection When solar panel power exceeds the rated power the solar charge controller limits solar panel power within the scope of rated power to prevent damage of the controller by excessive current The solar charge controller enters current limit charging Battery Reverse connection protection When storage system is connected reversely the system does not work and does not burn
11. D Double Flash Current under setting mode On 0 1s Off 0 1s On 0 1s Off 1 7s cycle 2 Limited Chargin On 0 1s s On 0 1s s cycle 2s ging W Down Menu page down parameter increase A v lt gt under setting mode Off Night lt Return Return to the previous menu BAT Ind p Confirm Enter submenu Setting Save key Indicator Indication State Battery State 3 4 LCD Starting and Main Interface Display Steady On Battery Voltage Normal gt Starting Interface Slow Flash On 1s Off 1s cycle 2s Battery Over Discharge Fast Flash On 0 1s Off 0 1s cycle 0 2s Battery Overvoltage S tlajr t i jn g x tcn ox gt LOAD Indicator Indication State Battery State Load Not Started Fast Flash On 0 1s Off 0 1s cycle 0 2s Overload Short Circuit Load Normal Output Steady On 11 12 During start the four indicators flash in flow LCD starts after self check The model of the solar charge controller is displayed first and then battery voltage level is displayed Voltage level is displayed according to user selected fixed voltage or voltage automatically identified gt Main Page Main page has 8 menus in which menus with sub menus can press setting key to enter next menus Page name Page Note Sub menu Charging Page Display Discharging Load Information Display Page Charging state information real time display
12. D screen displays content If there is no display disconnect the fuse or circuit breaker immediately and recheck whether the circuit connection is correct If battery is powered on normally connect the solar panel If solar charge controller charging indicators are on normally or flashing start battery charging When battery and photovoltaic is well connected then connect load fuse or circuit breaker At this time you can use manual mode to test whether the load On and Off is normal See load working mode and operation Warning When the solar charge controller is under normal charging state disconnecting battery connection will affect solar charge controller DC load In a severe case the load can be damaged Warning Within 10 minutes after solar charge controller charging stops battery reverse polarity operation may damage internal components of the solar charge controller Attention 1 Battery insurance installation site should be as close as possible to the battery end Recommended installation distance shall be no more than 150 mm 2 When solar charge controller is not connected to a remote temperature sensor battery temperature is a fixed value of 25 C 3 If the inverter is connected in the system please connect inverter directly with battery and do not connect solar charge controller with the load end Close wiring cover When all wirings of the system are well connected close the wiring cover and screw screws tight
13. Function and System Maintenance eee 19 4 1 Protection Function Introduction eee ee 19 4 2 System Maintenance tte iere eese rented 20 4 3 Abnormality Display and Alarm mne 20 5 Product Specification Parameter 0 c cee een 21 5 1 Electrical Parameter seem 21 5 2 Parameter Adjustment Range 22 6 Conversion Efficiency Curve sse 23 J Product Size eene 24 02 1 Product Introduction Apne ees 1 1 Product Overview and Features The solar charge controller can monitor generated power of solar panels in real time and track the highest voltage current value VI enabling the system to charge the battery with maximum power output Applied to solar off grid photovoltaic systems the product coordinates the functions of solar panels batteries and loads and is the core control unit of off grid photovoltaic systems The controller uses liquid crystal for the dynamic display of operation status operating parameters controller logs historical parameters and control parameters Users can check all parameters through buttons and modify control parameters according to actual needs so that different system requirements are met The controller adopts standard Modbus communication protocol making it easy for users to view and modify system parameters by themselves We provide free monitoring software which delivers the greatest possible convenience for users to satisfy different needs of remote monitoring The inside of the solar
14. Material Code 1 1 24 01419 Maximum Power Point Tracking ML Series ML4830 amp ML4830 LI amp ML2440 amp ML2440 LI Solar Charge and Discharge Controller User Manual MPPT Solar Charge Controller C RoHS Model ML4830 ML4830 LI ML2440 ML2440 LI Battery Voltage 12V 24V 36V A8V 12V 24V Max Solar Input Voltage 150V 150V Charging Current 30A 40A Discharging Current 20A 20A Note ML4830 LI and ML2440 LI can be used for lithium battery charging and discharging management Version 1 01 The above information is subject to change without prior notice Dear user Thank you for choosing our product Safety Instructions 1 Since the adaptable voltage of the solar charge controller exceeds human safety voltage you are advised to read instructions before operation and operate the solar charge controller after completing safe operation training 2 There are no parts that need maintaining or repairing inside the solar charge controller Users shall not disassemble or repair the controller by themselves 3 Please install the solar charge controller indoors avoid exposure of components and prevent water from entering the controller 4 Please install the solar charge controller in a well ventilated place for the temperature of the cooling fin can be very high during operation 5 You are recommended to install appropriate insurance or circuit breaker outside the solar charge controller 6
15. charge controller is equipped with comprehensive electronic fault self detecting function and powerful electronic protection function therefore avoiding damage to product components resulting from installation errors and system faults to the greatest extent Product Features Advanced double peak or multiple peak tracking technology When the panel has a shadow block or a Figure 1 1 Solar Charge Controller Appearance and Interface part of the panel is damaged l V curve shows multiple peaks The solar charge controller can still accurately track the maximum power point No Name No Name Built in algorithm for maximum power tracking This significantly raises energy utilization efficiency of 5 m photovoltaic systems with charging efficiency 15 20 higher than traditional PWM solar charge 1 Charging Indicator w Battery interface controllers 2 Battery Indicator 11 Load Interface Combination of multiple tracking algorithms that can track the optimum working point of l V curve 3 Load Indicator 12 Battery Interface accurately in a very short period of time 4 Abnormality Indicator 13 Load Interface MPPT tracking efficiency can be as high as 99 9 A Advanced digital power technology with circuit energy conversion efficiency as high as 98 5 Liquid Crystal Display 13 External Temperature Sampling Interface Supporting charging procedures of gel batteries sealed batteries ope
16. day Some system operation information record can be viewed at system log page can view data records of five years at most see Table 3 7 for information contents Liolg gieid Dj ajt ja In this page press setting key to enter system log sub menu page which is current day s log data by default with page contents as following table 3 7 Log Contents Unit Battery current day min voltage V Battery current day max voltage Current day max charging current Current day max charging power V A Current day max discharging current A Ww Ww Current day max discharging power Current day charging AH AH Current day discharging AH AH Current day generating capacity KWH Current day discharging capacity KWH Table 3 7 Log View of Different Days To view log data of n days ago the user needs to set a specified date The setting is as follows Step Long press setting key for 3 seconds in current log parameter Days value start to flash at this time 000 refers current days w gt lt e e e UJ gt rm rx Y lt 17 Step G Long press the setting key for 3 seconds and save current days At this time press key again to view other log contents of set days UJ gt rri rm Y lt 3 8 Parameter Setting Interface Under this menu t
17. ency 7 EN P 7 MPPT 12V System Conversion Efficiency 12V Battery 9 E 20V 20Vm 96 j 4ovmp gt 2 60Vmp 20 Vmi 90Vmp Kk 110Vmp o E 40 Vmp N g T S 31 o 90 g 89 90 Vm S 88 87 110 Vmp 86 E 85 __ nN 40 80 160 240 300 400 500 600 700 800 D Output Power W i FH a 6 2 24V System Conversion Efficiency 81 4X04 5 466 4X010 180 MPPT 24V System Conversion Efficiency 24V Battery j 40Vmp 98 60Vmp 96 coven P 90Vm 3s iovmp 5 X 94 axon Technical requirements 8 92 5 Product size 266 182 81mm E 90 Hole position 179 160mm 5 88 Hole size 04 5mm 86 Line material used diameter 10mm 2 S 84 o 82 80 i 40 80 160 480 800 1200 1600 Output Power W 6 3 48V System Conversion Efficiency MPPT 48V System Conversion Efficiency 48V Battery 99 60Vmp 70Vmp 80Vmp 97 eave 90Vmp 110Vmp g 95 70 Vmp r4 80 Vmp E 93 90 Vmp S 110 Vmp 5 91 c o 89 S 87 o 85 n 160 320 640 1000 1250 1500 2000 2500 3000 Output Power W 23 24
18. er reduces charging power or stops charging See the following figure 19 A Chg P 100 95 85 80 75 65 60 55 45 40 35 25 20 15 5 0 fl He D L 5 66 67 68 69 70 71 72 73 74 75 76 77 78 79 Tem MOS C 4 2 System Maintenance 9 9 9 To maintain the best and long term performance it is recommended that following items are checked each year Confirm that air flow around the solar charge controller is not blocked Remove any dirt or debris on the cooling fin Check whether insulation of bare wires is damaged due to sunburn friction with other objects around dry rot insects or rodents destruction Check whether repairing or wire replacement is necessary Verify that indicators are consistent with equipment operation Please pay attention to any fault or error displays and take corrective actions when necessary Check all wiring terminals to see if there is corrosion insulation damage high temperature or burning discoloration signs and tighten screw terminal Check whether there are dirt nest building insects and corrosion phenomenon and clean by following requirements If lightning arrester has failed timely replace invalid lightning arrester to prevent causing lightning damage to solar charge controller or even user s other equipments A Warning Risk of electric shock In process of above operation make sure all power supply of the solar charge controller ha
19. fast charging stage 2 Product Installation 2 1 Installation Precautions Exert great caution during battery installation Before installing open lead acid battery wear protective goggles When you are in contract with battery acid liquid wash the involved part with water immediately Do not place metal objects near battery to prevent short circuit When battery is charging acidic gas can be produced Ensure that the environment around is well ventilated Battery may generate combustible gas Keep it away from sparks 99 For outdoor installation avoid direct sunlight and rain infiltration 07 Loose connections and corrosive wires may cause extreme heat that melts wire insulation layers burns surrounding materials or even results in fire Ensure that connection heads are screwed tight and wires are better fixed with tightening belts Avoid wire shaking and loose connection heads when moving the application When the system is connected the output terminal voltage of components can be higher than human safety voltage During operation use insulated tools and make sure your hands are dry Thebattery terminals on the solar charge controller can be connected with one battery or the same set of batteries Follow up instructions in the manual apply to the use of single battery The same instructions apply to a system with a set of batteries as well Please follow battery manufacturers safety recommendations
20. he user can view and set system parameters Setting shall be performed under guidance of professional personnel otherwise setting error may cause system problems See table 3 8 For parameter setting contents Parameter Setting Contrast Table No Displaying Items Notes Parameter Scope pefautt rs TYPE OF BAT Battery Type User flooded Sealed Gel Sealed 2 CAP OF BAT Battery Capacity 100 3000AH 200AH 3 VOLT OF SYS System Voltage 12V 24V 36V 48V AUTO AUTO 4 OVRVOL DISC Overvoltage Voltage 9 0 17 0V 16 0V 5 CHG LMT VOL Charging Limit Voltage 9 0 17 0V 15 5V 6 EQUALIZ CHG Equalizing charging Voltage 9 0 17 0V 15 2V BOOST CHG Boost charging Voltage 9 0 17 0V 14 4V 8 FLOAT CHG Floating Charging Voltage 9 0 17 0V 13 8V BOOST RE CHG Boost charging Recovery to Voltage 9 0 17 0V 12 6V 10 LOW VOL RECT Over Discharge Recovery 9 0 17 0V 12 6V UND VOL WARN Under Voltage Warning 12 LOW VOL DISC Over Discharge Voltage 13 DISC LMT VOL Over Discharge Limit Voltage 9 0 17 0V 12 0V 9 0 17 0V 11 0V 9 0 17 0V 10 5V 1 30s 5s 14 LVD DELAY Over Discharge Delay Time 15 EQUALIZ TIME Equalizing Charging Duration Time 0 600Min 120Min 16 BOOST TIME Boost Charging Duration Time 10 600Min 120Min 0 255D 0 refers to close 30D equalizing charging function 18 T COMP SLOPE Temperature Compensation Coefficient OQ refers to close i 3mv C 2V 17 AUTO EQUALIZ Equalizing Charging Interval
21. load will shut down after working time reaches set value Manual Mode Under this mode the user can control load On and Off through keys regardless of daytime or night This mode is used in some special load situations or used for debugging 16 Debugging Mode Used for system debugging close the load when there is light signal open load when there is no light signal convenient for checking the correctness of the system installation during installation and debugging 17 gt Load Mode Adjustment Normal Open Mode Power on load has always maintained output state This mode is suitable for load needing 24 hours power supply The user adjusts load mode according to needs The debugging mode is set by default see Load Mode Introduction Mode adjustment method goes as follows Step Enter Load Mode Page Step Short press the setting key to enter mode adjustment interface Step Load m OD E L L O A D S E L or SET L OJD MO L g h t 4 Long press the setting key for 3 seconds ode will flash at this time o SET a h t 15 S E LIOJAID M O Lii gi hit 1 7 E L gt gt Manual Switch Load Page The page is available onl can be turned on and off from following pages ma
22. n batteries lithium batteries and 6 Operation Button 15 External Battery Voltage Sampling Interface other types of batteries D T Mounting Hole 16 RS485 Communication Interface Current limiting charging mode When the power of a solar panel is too large and the charging current 8 Solar Panel Interface 17 RS232 Communication Interface is greater than rated current the solar charge controller automatically reduces charging power thereby m 9 Solar Panel Interface making the solar panel work at rated charging current Supporting the start of capacitive load instantaneous large current Supporting automatic identification of battery voltage z B B LED indicator of malfunction buzzer alarm and liquid crystal display of abnormal information This 1 3 Introduction of the Maximum Power Point Tracking Technology helps users identify system failures Supporting historical data storage for up to 5 years LCD screen display function The display enables users to view equipment operation data and status and modify controller parameters at the same time Supporting standard Modbus protocol that meets communication needs on different occasions Built in mechanism of over temperature protection When the temperature exceeds the preset value the charging current falls linearly with temperature therefore slowing down the rise of controller temperature and avoiding controller damage from high temperat
23. nnect power line Warning Risk of electric shock We strongly recommend access insurance or circuit breaker at photovoltaic array end load end and battery end to prevent electric shock from occurring during wiring or misoperation Before wiring ensure that insurance or circuit breaker is disconnected Warning High pressure danger Photovoltaic array may generate very high open circuit voltage Before wire connection disconnect the breaker or insurance Be careful in the process of wiring Warning Risk of explosion Short circuit of battery positive and negative terminals and wires connected to them will cause fire or explosion Please be careful during operation Please connect battery first then connect load and finally connect the solar panel please follow the connection mode of first and then Power On Tip ML series solar charge controller only starts the solar charge controller via wiring at the battery end but ML LI can start the solar charge controller via power of PV array This applies to starting the solar charge controller and activating lithium battery when lithium battery BMS is in the protection state and cannot export electricity externally When all the power line connections are firm and reliable recheck whether the wiring is correct and whether positive and negative ends are connected reversely After confirmation connect battery fuse or circuit breaker observe whether LED indicator is lit and whether LC
24. ntrols the next process to perform equalizing charging equalizing charging duration will be 120 minutes default Equalizing charging and boost charging are not repeated in one full charge process This is to avoid too much gas evolution or battery overheating A Attention When the system cannot maintain battery voltage steadily at constant voltage due to installation environment or operation with load the solar charge controller performs time accumulation until battery voltage reaches the preset value After the cumulative time reaches three hours the system automatically transfers to floating charging If the clock of the solar charge controller is not calibrated the controller performs regular equalizing charging in accordance with its internal clock gt Floating Charging After a charging stage continues the solar charge controller reduces battery voltage by decreasing the charging current and maintains battery voltage at the preset voltage value for floating charging At floating charging stage the battery undergoes very weak charging to ensure that the battery is in full charge state At floating charging stage the load can obtain nearly all the solar power If the load exceeds the power provided by solar energy the solar charge controller fails to maintain battery voltage at floating stage When battery voltage is as low as the preset value for improved recovery charging the system exits from floating charging stage and re enters
25. nually Long press the setting key for 2 seconds to turn load on page displays as follows ly when load mode is manual mode 15 When load in under manual mode load T ul r n L o a d O N Hio td 2 sec Long press the setti ng key for 2 seconds to turn load off page displays as follows T ul rin L o a d O F F H o d 2 sec 3 6 System Ana lysis Page In system analysis page the user can user charging AH discharging AH work days and system abnormality information convenient for user to know the working condition of the whole system D ilajgi nj o sticis Mie nius S ic In this page press se tting key to enter system analysis sub menu page with page contents as following table 3 6 No Displaying Items Notes Unit Total Charge WH Total Charge AH Total Dischg WH Total Dischg AH Total Charge WH Total Charge AH Total Dischg WH Total Dischg AH KWH KAH KWH KAH Total Work Days Total Work Days Days Total LVD Times Total LVD Times Times Total FUL Times Total FUL Times Times Error Code Error Code Controller temp Controller temp Table 3 6 16 C 3 7 System Log Page gt Log View of Current Day Step Press the key to set the number of days 001 refers to value of previous
26. out solar charge controller Photovoltaic input terminal voltage too high Photovoltaic array input voltage is too high and solar charge controller will automatically cut off PV input Photovoltaic input terminal Short circuit protection After short circuit of photovoltaic array input terminal the solar charge controller disconnects charging and when short circuit condition is removed charging will be automatically restored PV input reverse connection protection When polarity of photovoltaic array is connected reversely the solar charge controller will not be damaged and will continue normal operation after correcting wiring error Warning During reverse connection battery voltage together with component element voltage must be less than 150V Load over power protection When load exceeds the rated power delayed load over power protection will be started according to actual circumstances Load short circuit protection Provide timely and fast protection for short circuit of load and try to start load automatically after a certain delay The maximum number per day is 5 times When load short circuit occurs the user can also remove load short circuit manually in system data analysis page exception code Night reverse connection proof protection At night prevent battery discharging via solar panel TVS Lightning Protection Over Temperature Protection With temperature higher than the set temperature the solar charge controll
27. s been disconnected and then conduct related check or actions accordingly 4 3 Abnormality Display and Alarm Error Display Remarks LED Indication Buzzer Alarm Photovoltaic Modules Inversed PV REV Connection ERROR indicator steady on Buzzer keeps alarming Photovoltaic Modules PV OVP Overvoltage ERROR indicator steady on Buzzer keeps alarming PV MPP OVP Over Set Vmp Voltage ERROR indicator steady on Buzzer Alarm for 1Min PV OVER CRT Photovoltaic Modules Overload ERROR indicator steady on Buzzer Alarm for 1Min BAT Indicator fast flash OVER VOLTAGE ERROR indicator steady on Buzzer keeps alarming System Overvoltage LOAD Indicator fast flash LOAD SHORT CRT ERROR indicator steady on Buzzer Alarm for 1Min Load Short Circuit LOAD Indicator fast flash B Al for 4Mi ERROR indicator steady on 77er V arm tor 1Min ERROR indicator steady on Buzzer Alarm for 1Min LOAD OVER CRT Overload Environment Temperature OVER TMP BAT Over Temperature Solar Charge Controller Internal ERROR indicator steady on Buzzer Alarm for 1Min OVER TMP MOS Over Temperature BAT Indicator slow flash OVER DISCHARGE ERROR indicator steady on Buzzer Alarm for 1Min Battery Over Discharge BAT UND VOL WARN Battery Under Voltage ERROR indicator steady on Buzzer Alarm for 15 seconds 20 5 Product Specification Parameter 5 2 Parameter Adjustment Range
28. s started once every 30 days in a month I Boost Charging The boost charging stage generally lasts 2 hours by default Customers can adjust the duration and preset value of boost voltage according to actual needs When the duration times reaches the preset value the system enters floating charging stage 06 I gt Equalizing Charging Warning explosion Balance opening lead acid batteries may produce explosive gas and cabins of the batteries must be well ventilated A Attention equipment damage Balance can push up battery voltage to a level that may damage sensitive DC load Verification is required to ensure that the allowed input voltage of all system loads is higher than the set value of equalizing charging for batteries Attention equipment damage Overcharging or too much gas evolution may damage battery plates and cause active materials on battery plates to fall off Damages may be caused if equalizing charging voltage is too high or equalizing charging lasts too long You are advised to carefully read the specific requirements on batteries used in the system Some types of batteries benefit from regular equalizing charging which can stir up electrolyte equalizing battery voltage and complete chemical reaction Equalizing charging boosts battery voltage to a level higher than standard complement voltage resulting in gasification of battery electrolyte If itis detected that the solar charge controller automatically co
29. ure The Maximum Power Point Tracking MPPT system is an advanced charging technology that enables solar panels to output more power by adjusting the working state of electrical modules Due to the nonlinearity of a solar array there is a maximum energy output point maximum power point on the curve of the array Traditional solar charge controllers switch charging technology and PWM charging technology cannot charge batteries at this point thus unable to obtain the maximum energy of solar panels However the solar energy charge controller equipped with the MPPT control technology can track the maximum power point of a solar array at any time in order to gain maximum energy for battery External battery voltage sampling function This function prevents line loss from affecting external charging battery voltage sampling and ensures greater preciseness of control parameters Take the 12V system for example The peak voltage of solar panels Vpp is around 17V and battery Temperature compensation functions Charging and discharging parameters are automatically voltage is about 12V Generally when the solar charge controller is charging a battery the voltage of adjusted thereby extending battery service life solar panel is maintained at about 12V indicating that the maximum power is not used MPPT solar TVS lightning protection charge controllers provide a solution to that problem by constantly adjusting the input voltage and Note Onl
30. y the ML LI model supports lithium battery charging and discharging function current of solar panels therefore maximizing input power 03 04 Compared with conventional PWM solar charge controllers MPPT solar charge controllers bring out the maximum power of solar panels and provide greater charging current Generally speaking MPPT solar charge controllers can improve energy utilization rate by 15 20 over PWM solar charge controllers VP Curve VI Curve P W A I A 94 5 81 0 67 5 54 0 40 5 PWM 27 0 Charging SFP SP qme Soe de gd om aoun onon onoo 13 5 00 U V 0 0 2 8 5 6 8 4 112 14 0 168 19 6 Figure 1 2 Solar Panel Output Characteristic Curve Moreover different environmental temperatures and light conditions lead to frequent changes of the maximum power point Our MPPT solar charge controller can constantly adjust parameters according to different conditions so as to put the system near the maximum working point all the time The whole process is completely automatic without any adjustment by users 1 A L A 20 C 30 C 40 C 50 C 60 C 70 C Sunlight reduces and current reduces U V u v Sunlight reduces and open circuit voltage reduces Temperature increases and open circuit voltage reduces Figure 1 3 Solar Panel Output Figure 1 4 Solar Panel Output Characteristic and Lighting Relation Characteristic and Temperature Relation 05 enje1eduio
Download Pdf Manuals
Related Search