Upne-Tech Magic Mt4010, Magic Mt4015 User Manual
The Upne-Tech Magic Mt4015 is a powerful solar charge controller designed for off-grid solar systems. It features an advanced MPPT algorithm for efficient energy harvesting, a digital LCD display for monitoring system status, and multiple load control modes for managing your energy consumption. The Mt4015 is equipped with protection against over-current, over-temperature, over-voltage, and short-circuit, ensuring safe and reliable operation. It also supports remote temperature sensing for accurate battery charging and incorporates a 4-stage charging process for optimal battery health. With its high charging efficiency and advanced features, the Magic Mt4015 is ideal for powering various off-grid applications.
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1.03.02.10029-1-1 Magic series MPPT Solar Controller 12/24/48V,10/15/20/30/40A, 130/200/260/390/520/780W, 1KW/2KW MENU OK User Manual User Manual_Magic series_MF CE, Rohs, ISO9001:2015 Subject to change without notice! Contents 1.Safety instructions and waiver of liability...............................................................................................2 1.1 Safety Instructions ..............................................................................................................................................................2 1.2 Liability Exclusion................................................................................................................................................................2 2.Pruduct Overview .......................................................................................................................................3 3. Dimensions ................................................................................................................................................4 3.1 The dimensions of MT1050/1550-EU/MT1050-RS485 ................................................................................4 3.2 The dimensions of MT2075/2010/3075...............................................................................................................5 3.3 The dimensions of MT3010/4010............................................................................................................................6 3.4 The dimensions of MT4015 ........................................................................................................................................7 4. Structure & Accessor y ............................................................................................................................8 4.1 Structure & Characteristics of MT1050/1550-EU/MT1050-RS485 ........................................................8 4.2 Structure & Characteristics of MT2075/2010/3075.......................................................................................8 4. 3 Structure & Characteristics of MT 3 010/4010/4015.......................................................................................9 4.4 Temperature Sensor .......................................................................................................................................................9 4.5 RS485 .....................................................................................................................................................................................10 4.6 Optional Accessories.....................................................................................................................................................10 5. Installation.................................................................................................................................................12 5.1 Installation Notes............................................................................................................................................................12 5.2 Mounting Location Requirements..........................................................................................................................12 5.3 Wiring Specifications ....................................................................................................................................................13 5.4 Connection .........................................................................................................................................................................13 5.5 Grounding ...........................................................................................................................................................................14 6.Operation ...................................................................................................................................................15 6.1 LCD Display .........................................................................................................................................................................15 6.2 Key function .......................................................................................................................................................................17 6.3 USB interface .....................................................................................................................................................................17 6.4 Parameters setting..........................................................................................................................................................18 7.Protections, Troubleshooting and Maintenance ............................................................................20 7.1 Troubleshooting ..............................................................................................................................................................20 7.2 Protection............................................................................................................................................................................21 7.3 Maintenance ......................................................................................................................................................................21 8.Technical Data .............................................................................................................................................22 1 Dear Clients, Thank you for purchasing our Magic Series Solar PV Charge Controller. Your support and trust in us are much appreciated. Please take time to read this manual, this will help you make full use of the many advantages this controller can provide your PV-System with. This manual presents important recommendations for installing, operating and monitoring. Read it with special care in your own interest and please pay attention to the safety recommendations herein indicated. 1, Safety instructions and waiver of liability 1.1 Safety Instructions The following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instructions. Please take care when meeting these symbols. WARNING: Indicates a potentially dangerous condition. Use extreme caution when performing this task. CAUTION: Indicates a critical procedure for safe and proper operation of the controller. CAUTION: 1) There are no user serviceable parts inside the controller. Do not disassemble or attempt to repair the controller. 2) Keep children away from batteries and the charge controller. 1.2 Liability Exclusion The manufacturer shall not be liable for damages, especially on the battery, caused by use other than as intended or as mentioned in this manual or if the recommendations of the battery manufacturer are neglected. The manufacturer shall not be liable if there has been service or repair carried out by any unauthorized person, unusual use, wrong installation, or bad system design. 2 2, Over view Magic series solar controller is based on an advanced maximum power point tracking (MPPT) technology developed, dedicated to the solar system, the controller conversion efficiency up to 98%. It comes with a number of outstanding features, such as: A combination of multiple tracking algorithms enables tracking the maximum power point quickly and accurately Innovative Max Power Point Tracking(MPPT) technology, tracking efficiency >99.9% Full digital technology, high charge conversion efficiency up to 98% LCD display design, read operating data and working condition easily Real-time energy statistics function 12/24/48V automatic recognition Flexible System battery selection: Liquid, Gel, AGM and Lithium Extends battery life through accurate remote temperature sensor The Controller is protected against over-temperature due to built-in power reduction function Four stages battery charging process: MPPT, boost, equalization, float Dual automatic protection to avoid exceeding the rated charging power and current Multiple load control modes: Always on, Street lamp, User-defind Mode Two USB interfaces(only -EU model) IOT Wireless communication or Bluetooth communication functions optional With the wireless communication function of the IOT , the controller can be connected remotely through IoT/GPRS Monthly charging data can be calculated and displayed by grouping and graphs Based RS-485 standard Modbus protocol with RJ11 interface to maximize the communication needs of different occasions. Perfect EMC & thermal design Full automatic electronic protect function for increased charge controller availability 2.2 MPPT MPPT profile The full name of the MPPT is maximum power point tracking. It is an advanced charging way which could detect the real-time power of the solar Modulel and the maximum point of the I-V curve that makes the highest battery charging efficiency. Current Boost Under most conditions, MPPT technology will "boost" the solar charge current. MPPT Charging:Power Into the controller (Pmax)=Power out of the controller (Pout) Iin x Vmp= Iout x Vout * Assuming 100% efficiency. Actually, the losses in wiring and conversion exist. If the solar module's maximum power voltage (Vmp) is greater than the battery voltage, it follows that the battery current must be proportionally greater than the solar input current so that input and output power are balanced. The greater the difference between the Vmp and battery voltage, the greater the current boost. Current boost can be substantial in systems where the solar array is of a higher nominal voltage than the battery as described in the next section. 3 High Voltage Strings and Grid-Tie Modules Another benefit of MPPT technology is the ability to charge batteries with solar arrays of higher nominal voltages. For example, a 12 Volt battery bank may be charged with a 12-, 24-, 36-, or 48-Volt nominal off-grid solar array. Grid-tie solar modules may also be used as long as the solar array open circuit voltage (Voc) rating will not exceed the maximum input voltage rating at the worst-case (coldest) module temperature. The solar module documentation should provide Voc vs. temperature data. Higher solar input voltage results in lower solar input current for a given input power. High voltage solar input strings allow for smaller gauge solar wiring. This is especially helpful and economical for systems with long wiring runs between the controller and the solar array. An Advantage Over Traditional Controllers Traditional PWM controllers connect the solar module directly to the battery when recharging. This requires that the solar module operates in a voltage range that is usually below the module's Vmp. In a 12 Volt system for example, the battery voltage may range from 10.8-15 Vdc,but the module's Vmp is typically around 16 or 17V. Because traditional controllers do not always operate at the Vmp of the solar array, energy is wasted that could otherwise be used to charge the battery and power system loads. The greater the difference between battery voltage and the Vmp of the module, the more energy is wasted. I(A) P(W) MPP MPP VI curve VP curve Typical Battery Voltage Range Pmax-Px Px PWM Controller Operating Range 0 10.8V 15V 17V V(V) 0 10.8V 15V 17V V(V) Nominal 12 Volt Solar Module I-V cur ve and output power graph. In contrast with the traditional PWM controller, MPPT controller could play a maximum power of the solar panel so that a larger charging current could be supplied. Generally speaking, the MPPT controller's energy utilization efficiency is 15%~20% higher than PWM controller. Conditions That Limit the Effectiveness of MPPT The Vmp of a solar module decreases as the temperature of the module increases. In very hot weather, the Vmp may be close to or even less than the battery voltage. In this situation, there will be very little or no MPPT gain compared to traditional controllers. However, systems with modules of higher nominal voltage than the battery bank will always have an array Vmp greater than the battery voltage. Additionally, the savings in wiring due to the reduced solar current make MPPT worthwhile even in hot climates. 2.3 MPPT—Four Charging Stages Magic series controller has a 4-stage battery charging algorithm for rapid, efficient, and safe battery charging. U(V) Equalize Charge 14.8V 14.5V 13.7V Night MPPT Charge Boost Charge Float Charge Night TIME MPPT Charge In this stage, the battery voltage has not yet reached boost voltage and 100% of available solar power is used to recharge the battery. Boost Charge When the battery has recharged to the Boost voltage setpoint, constant-voltage regulation is used to prevent heating and excessive battery gassing. The Boost stage remains 120 minutes and then goes to Float Charge.Whenever the controller is powered on, if it detects neither over discharged nor overvoltage, the charging will enter into the boost charging stage. Float Charge After the Boost voltage stage, the controller will reduce the battery voltage to Float voltage setpoint. When the battery is fully recharged, there will be no more chemical reactions and all the charge current transmits into heat and gas at this time. Then the controller reduces the voltage to the floating stage, charging with a smaller voltage and current. It will reduce the temperature of the battery and prevent the gassing, also charging the battery slightly at the same time. The purpose of Float stage is to offset the power consumption caused by self consumption and small loads in the whole system, while maintaining full battery storage capacity. In the Float stage, loads can continue to draw power from the battery. If the system load(s) exceed the solar charge current, the controller will no longer be able to maintain the battery at the Float setpoint. Should the battery voltage remains below the boost reconnect charging voltage, the controller will exit the Float stage and return to Bulk charging. Equalize Charge Certain types of batteries benefit from periodic equalizing charge, which can stir the electrolyte, balance battery voltage and complete chemical reaction. Equalizing charge increases the battery voltage, higher than the standard complement voltage, which gasifies the battery electrolyte. If it detects that the battery is being over discharged, the solar controller will automatically turn the battery to the equalization charging stage, and the equalization charging will be 120mins. Equalizing charge and boost charge are not carried out constantly in a full charge process to avoid too much gas precipitation or overheating of the battery. WARNING: Risk of explosion! Equalizing flooded batter y can produce explosive gases, so well ventilation of batter y box is necessar y. 3, Dimensions 3.1 The dimensions of MT1050/1550-EU/MT1050-RS485 Unit:mm 53 MT1050/1550-EU 5.8 15 Φ4.5 96 4.5 7 13.5 189 MT1050-RS485 4 3.2 The dimensions of MT2075/2010/3075 Unit:mm 58 MT2075 64 MT2010/3075 5.8 24.25 Φ4.5 MENU OK 182 4.5 7 24 189 MT2075 MT2010/3075 5 3.3 The dimensions of MT3010/4010 Unit:mm 69 MT4010 63 MT3010 5.8 25 Φ4.5 255 248 MENU OK 199 4.5 7 24 189 MT3010 MT4010 6 3.4 The dimensions of MT4015 Unit:mm 89 176 5.8 25 Φ4.5 255 MENU 248 OK 199 4.5 7 24 11.05 189 7 4, Structure & Accessor y 4.1 Structure & Characteristics of MT1050/1550-EU/MT1050-RS485 ①Heat Sink —dissipate controller heat ②Plastic Case ③ —Internal protection ③LCD —Display settings and operating status, system parameters ④ ④Key: MENU、OK —Set and view the operating parameters ⑨ ⑧ ⑤Temperature Sensor Port ⑦ —Collect temperature information, Temperature compensation. ⑥ ⑤ ⑥Two USB interfaces —Output 5V, 2A ⑦ Load Terminals —Connected load. ② ⑧Battery Terminals ① —Connect the battery. MT1050/1550-EU ⑨Solar module terminals —Connected solar modules. ⑩RS485 communication interface ⑥ ⑩ —Connecting monitoring devices ② ① MT1050-RS485 8 4.2 Structure & Characteristics of MT2075/2010/3075 ①Heat Sink —dissipate controller heat ②Plastic Case —Internal protection ③LCD ③ — Display settings and operating status, MENU system parameters OK ④Key: MENU、OK —Set and view the operating parameters ⑤RJ11 interface ④ —Connecting monitoring devices ⑥Temperature Sensor Port —Collect temperature information, Temperature compensation. ⑨ ⑧ ⑦ ⑦ Load Terminals —Connected load. ⑥ ⑤ ⑧Battery Terminals —Connect the battery. ⑨Solar module terminals ② —Connected solar modules. ① 9 4.3 Structure & Characteristics of MT3010/4010/4015 ①Heat Sink —dissipate controller heat ②Plastic Case —Internal protection ③LCD — Display settings and operating status, system parameters ④Key: MENU、OK ③ —Set and view the operating parameters MENU ⑤RJ11 interface —Connecting monitoring devices OK ⑥Temperature Sensor Port —Collect temperature information, the Temperature compensation. ④ ⑦ Load Terminals —Connected load. ⑧Battery Terminals —Connect the battery. ⑨Solar module terminals —Connected solar modules. ⑥ ⑨ ⑧ ⑦ ⑤ ② ① 4.4 Temperature Sensor To collect battery temperature data for temperature compensation so the controller can accurately charge the battery. The temperature sensor is connected via interface 6. If the remote temperature sensor is not connected to the controller or damaged, the default temperature for battery charging is 25 °C . The controller is shipped with an 80 mm long cable temperature sensor. Should a sensor with a longer cable be required than this needs to be ordered separately. 10 4.5 Rs485 MT1050-RS485 refer to figure 1 for interface RS485 port with RJ11 interface controller. The interface definition is shown in Figure 2: Pin No. 1 2 3 4 5 6 NC NC RS485-B RS485-A NC NC RS485-A RS485-B RJ11 for controller figure 1 Definition 1 NC 2 NC 3 RS485-A 4 5 RS485-B NC 6 NC figure 2 !Please contact the sales for the latest version of the communication protocol. The RS485 interface on this charger is not galvanically isolated and can not be grounded. Do not short circuit unused pin (Note NC). 4.6 Option Accessories 4.6.1 Bluetooth Communication Two options are available: 1. BT inside 2. BT external (Cyber-BT), and connected via RJ11 connector. Bluetooth communication has the following characteristics: 1. Support mobile phone App 2. Realizes wireless monitoring function of PV charge controller 3. Use high performance, ultra-low power consumption Bluetooth dedicated chip 4. Adopt Bluetooth 5.0 and BLE technology 5. Communication distance up to 10m. 1.This icon in this specification indicates that this solar controller has Bluetooth communication function. 2. Refer to Bluetooth APP instructions for detailed operation of mobile APP. 4.6.2 Wireless Communication for Internet of Things The controller equipped with the Internet of Things wireless communication capability has the following characteristics: 1. For the wireless Internet of Things communication functionality the controller can be remotely accessed through IOT/GPRS. 2. A variety of options are available for remote monitoring and real-time control through WeChat App /PC program. 3. Real-time monitoring of PV voltage, PV charging current, battery voltage, battery current, load voltage, load current and other system parameters as well as charge controller status. 4. Real-time automatic fault alarm. 5 .Charging and discharging quantities can be counted and displayed by item grouping and month. Please contact our Sales Team for more details about the IoT wireless communication. 11 5, Installation CAUTION: Please read all instructions and precautions in the manual before proceeding with the installation! It is recommended to remove the protective film cover from the LCD screen before operation. 5.1 Installation Notes ⑴ This charge controller must only be used in PV systems by requirements given in this user manual and the specifications of other system components provided by their manufacturers. No energy source other than a PV generator may be connected to the PV charge controller referred to herein. ⑵PV-modules must always be disconnected prior to the installation and adjustments of the charge controller; Make sure the circuit breaker, fuse or disconnects of the battery terminal are turned off. ⑶ Double check whether battery voltage meets the voltage range of the Charge Controller. ⑷Batteries store a large amount of energy, never short circuit a battery under any circumstances. We strongly recommend connecting a protection fuse directly to the battery terminal for protection in case of short circuiting the battery. ⑸Batteries can produce flammable gases. Avoid provoking any sparks, using fire or any exposed flame close to any batteries, ever. Make sure that the battery room is well ventilated to disperse any gases. ⑹Only use insulated tools and avoid placing (any) metal objects near/close to batteries. ⑺Be extremely cautious when working with batteries. Wear eye protection by all means. Have fresh water available to immediately wash and clean any contact with battery acid. Get immediate medical aid in case of any hazard that may occur. Never install/handle with batteries alone. ⑻Avoid touching or short-circuiting wires or terminals. Be aware that voltages on given system components, terminals or wires can be a multiple of battery voltage. Only use insulated tools, stand on dry ground, and keep your hands always dry and protected by proper (approved) electrician gloves when working on PV-Systems. ⑼Prevent any water, ever, from penetrating the controller, outdoor installation must avoid any direct sunlight and penetration of any water (e.g. rain) and humidity. ⑽After installation make sure that all connections are properly tightened, and eliminate any electrical loose connections to eliminate by all means any hot electrical connection spots. 5.2 Mounting Location Requirements Do not subject the PV charge controller to direct sunlight or any other heat sources. Protect the PV charge controller from any dust, dirt and moisture. Mount it flat to a vertical wall. Must be a non-flammable material. Maintain a minimum clearance of 15 cm below and around the controller to ensure unhindered air circulation. Mount the PV charge controller not too far from the batteries (for accurate voltage sensing least lessening). Mark the position of the PV charge controller fastening holes on the wall, drill 4 holes and insert dowels, fasten the PV charge controller to the wall with the cable openings facing downwards. >15CM WARM AIR MENU OK COOL AIR >15CM 12 5.3 Wiring Specifications Wiring and installation methods must comply with national and local electrical codes/specifications. The wiring specifications of the PV-system battery must be selected according to rated currents. Please check following table for wiring specifications: Model Rated charging Rated discharging current Solar wire diameter (mm²/AWG) current Batter y wire diameter (mm²/AWG) Load wire diameter (mm²/AWG) MT1050-EU/RS485 10A 10A 2.5/13 2.5/13 2.5/13 MT1550-EU 15A 10A 4/11 4/11 2.5/13 MT2075/2010 20A 20A 5/10 5/10 5/10 MT3075/3010 30A 30A 6/9 6/9 6/9 MT4010/4015 40A 30A 10/8 10/8 6/9 ! The indicated cable/wire sizes are for reference only. If longer runs between the PV array and the controller or between the controller and the battery are required, then larger capacity cables must be used to reduce voltage drop and improve system performance. 5.4 Connection We strongly recommend connecting a fuse directly to the battery terminal to protect from any short circuit in the battery circuit. PV-modules generate current whenever light shines on them. The generated current is directly proportional to the light intensity. Even low levels of light, will deliver the PV-Modules no load, full voltage. It is thus utterly advisable to protect PV-modules from any incident light during installation; Never touch uninsulated cables (ends), only use electric insulated tools, and make sure that the wire cross section is adequate for the PV module operating currents. Connections must always be conducted in the sequence as described below MENU OK ⑥ ② ④③ ⑤ ① 13 WARNING: The PV-module/array can produce open-circuit voltages in excess of 100 Vdc when exposed to sunlight. Pay highest attention to this fact. WARNING: Risk of explosion! In case the battery's positive and negative terminals or leads get ever in touch, i.e. short-circuited, a fire or explosion hazard might get triggered. Always pay maximum when handling batteries and related circuits. CAUTION: 1. When the controller is not connected with the external temperature sensor, the internal temperature of the battery is 25 ℃. 2.If a power inverter is used the system, directly connect the inverter to the battery. Do not connect it to the controller's load terminals. 1st step: Connect the battery Connect the battery cables observing the correct polarity to the center pair of terminals (make sure you identify the battery marking/symbol on the controller casing!) of the PV charge controller. Pay great attention to polarity. Never, ever invert the plus+ and minus- poles). Should your system be nominal 12 Vdc, make sure the battery voltage is between the 5.0 and 15.0 Vdc voltage range; for 24 Vdc nominal voltage, the battery voltage should be within the 20.0 to 31.0 Vdc range; for 48 Vdc nominal voltage, the battery voltage should be within the 40.0 to 62.0Vdc. If the polarity is correct, the LCD on the controller will begin to display those. 2nd step: Connect the solar module When connecting the PV-Module make sure to cover it from incident sun light. Double check the PVModule will not exceed the maximum permissible input current of the Charge Controller (please refer to the section Technical Data). Connect the solar module connection cable to the correct polarity of the left pair of terminals on the solar charge controller (with the solar module symbol). 3rd step: Connect loads Connect the load cable with the correct polarity of the right-hand side pair of terminals on the solar charge controller (with the lamp symbol). To avoid the presence of any tension on the cable/wires, please connect these first to the load before connecting them to the charge controller. 4th step: Final work Tighten all cables connected to the controller and remove all the remains around the controller (leaving a void of minimum 15 cm). 5.5 Grounding Be aware that the negative terminals of the controller are interconnected and therefore bear the same electrical potential. If any grounding is required, always do this on the negative wires/terminals. CAUTION: For common-negative system, such as motorhome, it is recommended to use a common-negative controller; but if in a common-negative system, some commonpositive equipment is used, and the positive pole is grounded, the controller may get damaged. 14 6, Operation 6.1 LCD Display 6.1.1 Status Description Item Icon Status Daytime, not charging Daytime, charging PV array Night PV voltage、 current and ampere hours The total charge ampere hours of the solar panel Batter y capacity Batter y voltage( Set Charging target voltage for lithium batter y) Batter y current Batter y Batter y state of charge(in %) Temperature(Clear Bluetooth Device Password) Batter y type(Programmable) Load voltage(Set low voltage protection voltage) Load current and ampere hours The total discharge ampere hours of the load Load Load mode(Programmable) The load is on The load is off Fault ! Fault indication, see 6.1.4 PV array charge ampere hours and load ampere hours are off after power failure。 15 6.1.2 The interface automatically cycles in the displayed sequence 6.1.3 Press OK to browse the interface 16 6.1.4 Fault indication Status Icon Description Short circuit E1 Load off, fault icon display, load icon flashes, the LCD screen displays E1 Over current E2 Load off, fault icon display, load icon flashes, the LCD screen displays E2 Low voltage E3 Batter y level shows empty, fault icon display, batter y frame flashes, the LCD screen displays E3 Over voltage E4 Batter y level shows full, fault icon display, batter y flashes, the LCD screen displays E4 Over temperature E5 The charge and discharge are off, fault icon display, icon ℃ flashing, the LCD screen displays E5 Controller does not correctly identify system voltage Controller does not correctly identify system voltage. 6.2 Key function MENU Mode OK Operating Browse interface Short press OK Static display Press the MENU and OK key at the same time for 1s, the LCD screen will lock the interface. Press the MENU and OK key again for 1s, the LCD interface will unlock and start scrolling. Setting parameter Press the MENU key for 1s to enter the setting mode when the icon appears on the display interface, and exit automatically after 30s Load On/Off When the controller is working in street lamp mode, press the MENU key for 3s to turn on the load, press the MENU key again or 1min later the load will be turned off. 6.3 USB interface MT-EU series have two USB interfaces, maximum output of single USB is 5V 1.5A, maximum output of two USB is 5V 2A, for charging mobile phones and other smart devices. The USB stops output only when the controller is in low voltage protection. 17 6.4 Parameters setting When the icon appears in the display interface, it means that the parameters can be set. Press the MENU key for 1s, then icon flashes, press OK to change the parameter. 6.4.1 Charging target voltage(Lithium) If the batter y type is set to lithium batter y , the LCD display interface is shown in the left figure . Long press the MENU key for 1 second , the icon flashes to set the charging target voltage of lithium batter y . Setting range of Charging target voltage: 12V:10 . 0 ~ 17. 0V ( default : 14 . 4V ) 12 / 24V: 10 . 0 ~ 32 . 0V ( default : 14 . 4V ) 12 / 24 / 36 / 48V:10 . 0 ~ 64 . 0v ( default : 29 . 4V ) The controller automatically calculates the charging recover y voltage . according to the charging target voltage . The charging recover y voltage is approximate 0.97 * Charging target voltage. If the batter y type is not lithium batter y, there is no icon in the current interface. 6.4.2 Low voltage protection and recover y voltage When the LCD shows as displayed at left, press the MENU key for 1s, the icon flashes, now you can set the controller 's low voltage protection voltage. 1.If the batter y is set to lithium batter y, the low voltage protection voltage setting range is as follow: 12V:9.0 ~ 16.0V (default: 10.6V) 12/24V: 9.0 ~ 30.0V (default: 10.6V) 12/24/36/48V: 9.0 ~ 60.0V (default: 21.0V) The controller automatically calculates the low voltage recover y voltage according to the low voltage protection voltage. The low voltage recover y voltage is approximate 1.11 * low voltage protection voltage. 2. If the batter y is not lithium batter y, the low voltage protection mode of the controller is divided into batter y voltage control and capacity control. ①Batter y voltage control setting range: 10.8~11.8V/21.6~23.6V/32.4~35.4V/43.2~47.2V (default:11.2V/22.4V/33.6V/44.8V). The default low voltage recover y voltage of the controller is 0.8/1.6/2.4/3.2V higher than the low voltage protection voltage. If you want to reduce the low voltage recover y voltage, please reduce the low voltage protection voltage first. ② Batter y capacity control Display Low voltage protection range Low voltage reconnect 11.0~11.6V/22.0~23.2V/33.0~34.8V/44.0~46.4V 12.4/24.8/37.2/49.6V 11.1~11.7V/22.2~23.4V/33.3~35.1V/44.4~46.8V 12.5/25.0/37.5/50.0V 11.2~11.8V/22.4~23.6V/33.6~35.4V/44.8~47.2V 12.6/25.2/37.8/50.4V 11.4~11.9V/22.8~23.8V/34.2~35.7V/45.6~47.6V 12.7/25.4/38.1/50.8V 11.6~12.0V/23.2~24.0V/34.8~36.0V/46.4~48.0V 12.8/25.6/38.4/51.2V 6.4.3 Clear Bluetooth Device Password When the LCD shows as displayed at left, press the MENU key for 1s, the icon flashes, you can press OK to clear the Bluetooth device password set by the mobile app. For device passwords, please refer to Bluetooth APP instructions. 18 6.4.4 Batter y type When the LCD shows as displayed at left, press the MENU key for 1s,the icon flashes , you can set the batter y type. Display Batter y type GEL(Default) Liquid AGM Lithium 1.Charging Voltage Parameters(Liquid, GEL, AGM) When choosing Liquid, GEL or AGM for battery type, the parameters of boost, equalization and float charge voltage can be set by mobile phone APP, RS485 or Wechat APP. The range of parameters is as follows. The following voltage parameters are 25℃/12V system parameters, 24/48V displayed values are multiplied by a factor of 2/4. Charging stage Boost Equalization Charging Voltage Range 14.0~14.8V 14.0~15.0V 13.0~14.5V Default charging voltage 14.5V 14.8V 13.7V Float 2.Charging Voltage Parameters(Lithium) When choosing lithium battery type, the Charging target and recovery voltage of lithium battery can be set by pressing the key (see 6.3.1 setting selection for details), mobile phone APP, RS485 or Wechat APP. Charging target voltage setting range: 12V: 10.0~17.0V (default:14.4V) Charging recovery voltage setting range: 12V: 9.2~16.8V (default:14.0V) 12/24V: 10.0~32.0V (default:14.4V) 24/48V: 20.0~64.0V (default:29.4V) 12/24V: 9.2~31.8V (default:14.0) 24/48V: 18.2~63.8V (default:28.7) Note: (Overcharge Recovery Voltage+1.5V)≥Lithium Overcharge Protection Voltage≥ (Overcharge Recovery Voltage+0.2V) Warning: The required accuracy of BMS shall be at least 0.2V. If tolerance is larger than 0.2V, manufacturer will not assume any liability for any consequent system malfunction. 6.4.5 Load mode When the LCD shows as displayed at left, press the MENU key for 1s, the icon flashes, you can set the load mode. Display Load mode Always on Mode: The load output is always switched on. Dusk to Dawn Mode: The load output is switched on between sunset and sunrise. Evening Mode: The load output will be switched on for 2~9hours after sunset. Manual Mode: The load output can be switched on and off manually by pressing MENU shortly. 1.Always on Mode When the controller is set to always On mode, no matter the charging or discharging state, the load is always powered on (except in when in protection state). 19 2.Street lamp Function When the load is set to Dusk to Dawn or Evening mode, the Day/Night threshold voltage and the Day/Night delay time can be set by the mobile phone APP, RS485 or Wechat APP, and the load can be turned on or off by the test function during the day charging process. 2.1 Day/Night threshold voltage The controller recognizes day and night based on the solar array open circuit voltage. This day/night threshold voltage can be modified according to local light conditions and the solar array used. Day/Night threshold setting range: 3.0~10.0V(Lithium, default: 8.0V) Day/Night threshold setting range: 3.0~10/6.0~20/12~40V(Liquid/Gel/AGM,Default: 8/16/32V) 2.2 Day/Night delay time In the evening, when the solar array open circuit voltage reaches the setting day/night detect voltage, you can adjust the day/night delay time to make the load turn on a little bit later. Day/Night delay time setting range: 0~30min(Default: 0min) 2.3 Test Function When the controller is working in Dusk to Dawn or Evening mode, press the MENU key for 3s to turn on the load. Press the MENU key again or the load turns off automatically after 1 minute. If the controller is operating in always on mode, the test function does not work. 3.User-definde Mode ①If the load mode is selected "USE", then you can switch on and off the load output manually by pressing MENU shortly. ②The default switching state of the load in manual mode can be changed by mobile APP , RS485 or Wechat APP. At the same time, the output to the load can be turned on or off. 1.If the controller turns off the load due to low voltage protection、overcurrent protection、short-circuit protection or over temperature protection, the load will turn on automatically when the controller recovers from protection state. 2.Please note: Pushing the MENU button can still activate the function of the key, even during of the above four kinds protection states. 7, Troubleshooting, Protections and maintenance 7.1Troubleshooting Faults E1 Reason Troubleshooting Short Circuit ①Clear short circuit fault ②Restart the controller or press the key to restore the load output E2 Over Current ①Reduce electrical equipment; ②Restart the controller or press the key to clear the fault load and restore the output E3 Batter y voltage is too low Load will be reconnected when battery is recharged E4 Batter y voltage is too high Check if other sources overcharge the battery. If not, controller is damaged. E5 Over temperature After the temperature decreases, the controller will work normally Batter y voltage is abnormal at start-up Charge or discharge the batter y so that the batter y voltage is within the normal operating range (5.0~15.0V or 20~31V or 40~62V) PV panel fault or reverse connection Check panels and connection wires Batter y can ' t be charged during daytime 20 7.2 Protection Protection Description PV Over Current The controller will limit charging power to the rated level. Over-sized PV array will not be able to operate at the maximum power point. PV Short Circuit PV Reverse Polarity When PV short circuit occurs, the controller will stop charging. Remove it to resume normal operation. When the PV doesn't charge, the controller will not be damaged if short-circuit just happened in the PV array. Warning: It is forbidden to short-circuit the PV array during charging. Otherwise, the controller may be damaged. Fully protection against PV reverse polarity, no damage to the controller. Correct the connection to resume normal operation. Battery Reverse Polarity Fully protection against battery reverse polarity, no damage to the controller. Correct the connection to resume normal operation. Battery Over voltage Should there are other energy sources to charge the battery, when the battery voltage exceeds 15.8 / 31.3/62.3V(Overcharge protection voltage of lithium battery equals target voltage plus 0.2V), the controller will stop charging to protect the battery from overcharging damage. Battery Over discharge When the battery voltage drops to the low voltage disconnect setting, the controller will stop discharging to protect the battery from over discharging Load Over Current Protection If the load current exceeds the maximum load current rating 1.25 times, the controller will automatically cut off the output. If the load reconnects the output automatically 10 times, it needs to be cleared by pressing the test key, restarting the controller or switching from Night to the Day. Load Short Circuit Protection When the load output of the controller is short circuited, the controller will automatically cut off the output. If the load reconnects the output automatically 10 times, it needs to be cleared by pressing the test key, restarting the controller or switching from Night to the Day. Over Temperature Protection The controller detects the internal temperature through internal sensor, when the temperature exceeds the setting value, the charging current will decrease. The controller stops working when the internal temperature exceeds 75℃ and resumes work when the internal temperature is below 65℃. Damaged Remote Temperature Sensor When the external temperature sensor is damaged or not connected, the controller will charge at 25 ℃ by default to prevent overcharge from damaging the battery. 7.3 Maintenance For best system performance, the following inspections and maintenance tasks are recommended to be carried out for at least two times a year. Make sure no block on air-flow around the controller. Clear up any dirt and fragments on radiator. Check all the naked wires to make sure insulation is not damaged. Repair or replace some wires if necessary. Tighten all terminal screws to the indicated torque; Inspect for loose, broken, or burnt cable/wire connections. Check and confirm that LCD is consistent with required. Pay attention to any troubleshooting or error indication. Take corrective action if necessary. Make sure all system components are effectively and tightly connected to ground. Check all terminals for any corrosion signs, damaged insulation, increased temperature . Check for any dirt, nesting insects and any corrosion signs. Implement corrections actions as early as possible. WARNING:Risk of electric shock! Make sure that all the power is turned off before above operations, and then follow the corresponding inspections and operations. 21 8, Technical Data Item System Voltage Batter y Parameters MT1050-EU MT1050-RS485 MT1550-EU 12V Max Charging Current 10A MPPT Charging Voltage before boost or equalization charging stage 15A Boost Voltage 14.5V@25℃ Equalization Voltage 14.8V@25℃(Liquid ,AGM) Float Voltage 13.7V@25℃ Low Volt. Disconnect 10.8~11.8V, SOC1~5(default:11.2V) Overcharge Protect 15.5V Temp. Compensation -4.17mV/K per cell (Boost, Equalization), Charging target voltage 10.0~17.0V(Programmable, default: 14.4V) -3.33mV/K per cell (Float) Panel Parameters Load System Parameters Low voltage disconnect 9.0~15.0V(Programmable, default: 10.6V) Batter y Type Gel, AGM, Liquid, Lithium(default: Gel) Max volt on Bat. termina 20V Max volt on PV terminal 45V 35V Max input power 130W 200W Day/Night threshold 8.0V MPPT tracking range (Batter y Voltage + 1.0V)~Voc*0.9 Output Current 10A *2 USB interface 5V, 2A Load mode Always on, Street lamp, User-defind Mode Max tracking efficiency >99.9% Max charge conversion 97.5% Dimensions 189 * 96 * 53mm Weight 420g Self consumption 0.2W Communication Grounding / / RS485 5V, 2A / Common Negative Power terminals 8AWG(10mm²) Ambient temperature -20 ~ +55℃ Storage temperature -25 ~ +80℃ Ambient humidity 0 ~ 100%RH Protection degree IP32 Max Altitude 4000m *1. Maximum solar panel voltage at minimum ambient operating temperature. *2. Voc: PV-Module open circuit voltage. 22 Item Batter y Parameters Mt2010 MT3010 MT2075 MT3075 Max Charging Current 20A 30A 20A 30A System Voltage 12V/24V automatical recognization MPPT Charging Voltage before boost or equalization charging stage Boost Voltage 14.0~14.8V/28.0~29.6V @25℃(default:14.5/29V) Equalization Voltage 14.0~15.0V/28.0~30.0V @25℃(default:14.8/29.6V) Float Voltage 13.0~14.5V/26.0~29.0V @25℃(default:13.7/27.4V) Low voltage disconnect 10.8~11.8V/21.6~23.6V, SOC1~5(default: 11.2/22.4V) Low voltage reconnect 11.4~12.8V/22.8~25.6V(default: 12.0/24.0V) Overcharge Protect 15.8/31.3V Temp. Compensation -4.17mV/K per cell (Boost, Equalization), -3.33mV/K per cell (Float) Panel Parameters Load System Parameters Charging target voltage 10.0~32.0V(Lithium, default: 14.4V) Charging recovery voltage 9.2~31.8V(Lithium, default: 14.0V) Low voltage disconnect 9.0~30.0V(Lithium, default: 10.6V) Low voltage reconnect 9.6~31.0V(Lithium, default: 12.0V) Battery Type Gel, AGM, Liquid, Lithium(default: Gel) Max volt on Bat. Terminal 35V Max volt on PV terminal 95V Max input power 260/520W Day/Night threshold 3.0~20.0V(default: 8.0/16.0V) 55V 390/780W 260/520W Day/Night delay time 0~30min(default: 0min) MPPT tracking range (Battery Voltage + 1.0V)~Voc*0.9 *2 Output Current 20A Load mode Always on, Street lamp, User-defind Mode 30A 20A 390/780W 30A Max tracking efficiency >99.9% Max charge conversion 98.0% Dimensions(mm) 189 * 182 * 64 189 * 255 * 63 189 * 182 * 58 189 * 182 * 64 Weight 1.29Kg Self consumption ≤8mA(12V),≤12mA(24V) Communication RS485(RJ11 interface) 1.5Kg 1Kg Optional IOT,Cyber-BT(Internal / External) Grounding Common Negative Power terminals 6AWG(16mm²) Ambient temperature -20 ~ +55℃ Storage temperature -25 ~ +80℃ Ambient humidity 0 ~ 100%RH Protection degree IP32 Max Altitude 4000m 1.3Kg 23 Item Max Charging Current Batter y Parameters Mt4010 40A System Voltage 12V/24V automatical recognization MPPT Charging Voltage before boost or equalization charging stage Boost Voltage 14.0~14.8V/28.0~29.6V @25℃(default:14.5/29V) Equalization Voltage 14.0~15.0V/28.0~30.0V @25℃(default:14.8/29.6V) Float Voltage 13.0~14.5V/26.0~29.0V @25℃(default:13.7/27.4V) Low voltage disconnect 10.8~11.8V/21.6~23.6V, SOC1~5(default: 11.2/22.4V) Low voltage reconnect 11.4~12.8V/22.8~25.6V(default: 12.0/24.0V) Overcharge Protect 15.8/31.3V Temp. Compensation -4.17mV/K per cell (Boost, Equalization), -3.33mV/K per cell (Float) Panel Parameters Load System Parameters Charging target voltage 10.0~32.0V(Lithium, default: 14.4V) Charging recover y voltage 9.2~31.8V(Lithium, default: 14.0V) Low voltage disconnect 9.0~30.0V(Lithium, default: 10.6V) Low voltage reconnect 9.6~31.0V(Lithium, default: 12.0V) Batter y Type Gel, AGM, Liquid, Lithium(default: Gel) Max volt on Bat. Terminal 35V Max volt on PV terminal 95V Max input power 520/1040W Day/Night threshold 3.0~20.0V(default: 8.0/16.0V) Day/Night delay time 0~30min(default: 0min) MPPT tracking range (Batter y Voltage + 1.0V)~Voc*0.9 Output Current 30A *2 Load mode Always on, Street lamp, User-defind Mode Max tracking efficiency >99.9% Max charge conversion 98.0% Dimensions 189 * 255 * 69 mm Weight 2Kg Self consumption ≤8mA(12V),≤12mA(24V) Communication RS485(RJ11 interface) Optional IOT,Cyber-BT(Internal / External) Grounding Common Negative Power terminals 6AWG(16mm²) Ambient temperature -20 ~ +55℃ Storage temperature -25 ~ +80℃ Ambient humidity 0 ~ 100%RH Protection degree IP32 Max Altitude 4000m 24 Item Batter y Parameters Mt4015 Max Charging Current 40A System Voltage 24V/48V automatical recognization MPPT Charging Voltage before boost or equalization charging stage Boost Voltage 28.0~29.6V/56.0~59.2V @25℃(default:29.0/58.0V) Equalization Voltage 28.0~30.0V/56.0~60.0V @25℃(default:29.6/59.2V) Float Voltage 26.0~29.0V /52.0~58.0V@25℃(default:27.4/54.8V) Low voltage disconnect 21.6~23.6V/43.2~47.2V,SOC1~5(default: 22.4/44.8V) Low voltage reconnect 22.8~25.6V/45.6~51.2V(default: 24.0/48.0V) Overcharge Protect 31.3/62.3V Temp. Compensation -4.17mV/K per cell (Boost, Equalization), Charging target voltage 20.0~64.0V(Lithium, default: 29.4V) -3.33mV/K per cell (Float) Panel Parameters Load System Parameters Charging recover y voltage 18.2~63.8V(Lithium, default: 28.7V) Low voltage disconnect 18.0~60.0V(Lithium, default: 21.0V) Low voltage reconnect 18.6~62.0V(Lithium, default: 22.4V) Batter y Type Gel, AGM, Liquid, Lithium(default: Gel) Max volt on Bat. Terminal 65V Max volt on PV terminal 150V Max input power 1000/2000W Day/Night threshold 6.0~40.0V(default: 16.0/32.0V) Day/Night delay time 0~30min(default: 0min) MPPT tracking range (Batter y Voltage + 1.0V)~Voc*0.9 *2 Output Current 30A Load mode Always on, Street lamp, User-defind Mode Max tracking efficiency >99.9% Max charge conversion 98.7% Dimensions 189 * 255 * 89 mm Weight 2.5Kg Self consumption ≤8mA Communication RS485(RJ11 interface) Optional IOT,Cyber-BT(Internal / External) Grounding Common Negative Power terminals 6AWG(16mm²) Ambient temperature -20 ~ +55℃ Storage temperature -25 ~ +80℃ Ambient humidity 0 ~ 100%RH Protection degree IP32 Max Altitude 4000m 25 9.Conversion Efficiency Cur ves Test conditions:Illumination intensity: 1000W/m² Temperature: 25℃ Model:MT1050-EU/MT1050-RS485 12V Conversion Efficiency Curves Solar Module MPP Voltage 18V/36V Conversion Efficiency% 99 98 97 Vmp=18V 96 95 Vmp=36V 94 93 92 0 20 40 60 80 100 120 130 Charging Power(W) Model:MT1550-EU 12V Conversion Efficiency Curves Solar Module MPP Voltage 18V Conversion Efficiency% 99 98 97 96 Vmp=18V 95 94 93 92 0 20 40 60 80 100 120 140 Charging Power(W) 160 180 200 Model:MT2075、MT2010 12V Conversion Efficiency Curves Solar Module MPP Voltage 18V/36V Conversion Efficiency% 99 98 18V 97 36V 96 95 94 93 92 0 30 60 90 120 150 180 210 240 260 Charging Power(W) 24V Conversion Efficiency Curves Solar Module MPP Voltage 36V/54V/72V Conversion Efficiency% 99 98 36V 54V 72V 97 96 95 94 93 92 0 60 120 180 240 300 360 Charging Power(W) 420 480 520 Model:MT3075、MT3010 12V Conversion Efficiency Curves Solar Module MPP Voltage 18V/36V Conversion Efficiency% 99 98 18V 97 36V 96 95 94 93 92 0 40 80 120 160 200 240 280 320 360 390 Charging Power(W) 24V Conversion Efficiency Curves Solar Module MPP Voltage 36V / 54V/72V Conversion Efficiency% 99 98 36V 97 54V 72V 96 95 94 93 92 0 80 160 240 320 400 480 560 Charging Power(W) 640 720 780 Model:MT4010 12V Conversion Efficiency Curves Solar Module MPP Voltage 18V/36V Conversion Efficiency% 99 98 18V 36V 97 96 95 94 93 92 0 40 80 120 160 200 240 280 320 360 400 440 480 520 880 960 1040 Charging Power(W) 24V Conversion Efficiency Curves Solar Module MPP Voltage 36V / 54V/72V Conversion Efficiency% 99 98 36V 97 54V 72V 96 95 94 93 92 0 80 160 240 320 400 480 560 640 720 Charging Power(W) 800 Model:MT4015 24V Conversion Efficiency Curves Solar Module MPP Voltage 36V / 54V/72V Conversion Efficiency% 99 98 36V 97 54V 72V 96 95 94 93 92 0 80 160 240 320 400 480 560 640 720 800 880 960 1000 Charging Power(W) 48V Conversion Efficiency Curves Solar Module MPP Voltage 72V / 90V Conversion Efficiency% 99 98 97 72V 96 90V 95 94 93 92 0 150 300 450 600 750 900 1050 1200 1350 Charging Power(W) 1500 1650 1800 2000 ">

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Key features
- MPPT technology
- Digital LCD Display
- Multiple Load Control Modes
- Protection Features
- Remote Temperature Sensing
- 4-stage Charging Process