Lumiax MT1050 User manual

User Manual
User Manual_Magic series_MF
CE, Rohs, ISO9001:2015
Subject to change without notice!
MPPT Solar Controller
12/24/48V，10/15/20/30/40A,
130/200/260/390/520/780W,
1KW/2KW
Magic series
ME N U O K
1.03.02.10029-1-1

1
Contents
1.
1.1
1.2 Liability Exclusion................................................................................................................................................................2
3.
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.
4.1 Characteristics of MT1050/1550-EU/MT1050-RS485........................................................8
4.2 Characteristics of MT2075/2010/3075.......................................................................................8
4. Characteristics of MT 010/4010/4015.......................................................................................9
4.4 Temperature Sensor .......................................................................................................................................................9
4.5 RS485 .....................................................................................................................................................................................10
4.6 Optional Accessories.....................................................................................................................................................10
5.
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
Safety instructions and waiver of liability...............................................................................................2
Safety Instructions ..............................................................................................................................................................2
Pruduct Overview .......................................................................................................................................3
Dimensions ................................................................................................................................................4
Structure & Accessory ............................................................................................................................8
Structure &
Structure &
3 Structure & 3
Installation.................................................................................................................................................12
8.Technical Data .............................................................................................................................................22
2.
1

1, Safety instructions and waiver of liability
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.
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.
1.2
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.
Liability Exclusion
1.1 Safety Instructions
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.
CAUTION: Indicates a critical procedure for safe and proper operation of the controller.
2

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%
Real-time energy statistics function
Flexible System battery selection: Liquid, Gel, AGM and Lithium
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:
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.
Full automatic electronic protect function for increased charge controller availability
LCD display design, read operating data and working condition easily
12/24/48V automatic recognition
Perfect EMC & thermal design
Extends battery life through accurate remote temperature sensor
The Controller is protected against over-temperature due to built-in power reduction function
Always on, Street lamp, User-defind Mode
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:
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.
2, Overview
3
2.2 MPPT

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.
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.
P(W )
10.8V 15V 17V
VP c urv e
0
I(A )
V(V )
MP P
10.8V 15V 17 V
Ty pic al
Ba tte ry
Vo lta ge
Range
VI c urv e
0V(V )
Px P max-Px
MP P
PW M
Controller
Operating
Ra nge
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.
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
battery box is necessar y.
U(V)
MPPT
Charge
Boost
Charge
Float
Charge
Equalize
Charge
Night
TIME
13.7V
14.5V
14.8V
Night

4
3, Dimensions
3.1 The dimensions of MT1050/1550-EU/MT1050-RS485
96
53
Φ4.5
189
5.8
15
13.5
4.5
7
Unit:mm
MT1050-RS485
MT1050/1550-EU

5
3.2 The dimensions of MT2075/2010/3075
182
58 MT2075
64 MT2010/3075
189
24.25
5.8
Φ4.5
MENU O K
MT2075
MT2010/3075
24
4.5
7
Unit:mm

3.3 The dimensions of MT3010/4010
6
Unit:mm
MENU O K
255
189
25
5.8
Φ4.5
69
24
4.5
7
199
248
MT4010
MT4010
MT3010
63 MT3010

7
89
3.4 The dimensions of MT4015
MENU O K
255
199
24
4.5
7
11.05
248
189
25
5.8
176
Φ4.5
Unit:mm

①Heat Sink
—dissipate controller heat
②Plastic Case
—Internal protection
③LCD
—Display settings and operating status,
system parameters
④Key: MENU、OK
—Set and view the operating parameters
⑤Temperature Sensor Port
—Collect temperature information,
Temperature compensation.
⑥Two USB interfaces
—Output 5V, 2A
⑦ Load Terminals
—Connected load.
⑧Battery Terminals
—Connect the battery.
⑨Solar module terminals
—Connected solar modules.
⑩RS485 communication interface
—Connecting monitoring devices
4.1 Characteristics of MT1050/1550-EU/MT1050-RS485 Structure &
③
④
⑧⑨ ⑦
4, Structure & Accessory
8
①
②
⑥
⑩
MT1050-RS485
①
②
⑤⑥
MT1050/1550-EU

③
④
⑧⑨ ⑦
MENU O K
4.2 Characteristics of MT2075/2010/3075 Structure &
①Heat Sink
—dissipate controller heat
②Plastic Case
—Internal protection
③LCD
—Display settings and operating status,
system parameters
④Key: MENU、OK
—Set and view the operating parameters
⑤RJ11 interface
—Connecting monitoring devices
⑥Temperature Sensor Port
—Collect temperature information,
Temperature compensation.
⑦ Load Terminals
—Connected load.
⑧Battery Terminals
—Connect the battery.
⑨Solar module terminals
—Connected solar modules.
②
⑤
⑥
①
9

MENU OK
①
②
③
④
⑤⑥ ⑦⑧⑨
4.3 Characteristics of MT3010/4010/4015 Structure &
①Heat Sink
—dissipate controller heat
②Plastic Case
—Internal protection
③LCD
—Display settings and operating status,
system parameters
④Key: MENU、OK
—Set and view the operating parameters
⑤RJ11 interface
—Connecting monitoring devices
⑥Temperature Sensor Port
—Collect temperature information, the
Temperature compensation.
⑦ Load Terminals
—Connected load.
⑧Battery Terminals
—Connect the battery.
⑨Solar module terminals
—Connected solar modules.
10
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.

11
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:
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.
!Please contact the sales for the latest version of the communication protocol.
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.
RJ11 for controller
12 3 4 5 6
NC RS 48 5-B RS 48 5-A NC NC NC
Pin No. Definition
1NC
NC
NC
RS485-A
RS485-B
NC
2
4
3
5
6
The RS485 interface on this charger is not galvanically isolated and can not be grounded.
Do not short circuit unused pin (Note NC).
Please contact our Sales Team for more details about the IoT wireless communication.
figure 1 figure 2
RS 48 5-B
RS 48 5-A

12
>15CM
>15CM
COOL AIR
WARM AIR
MEN U OK
5, Installation
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.
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.
5.2 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.

Model Rated charging
current
Rated
discharging
current
Solar wire
diameter
(mm²/AWG)
Battery wire
diameter
(mm²/AWG)
Load wire
diameter
(mm²/AWG)
MT1050-EU/RS485
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
10A 10A 2.5/13 2.5/13 2.5/13
13
⑤
⑥
MEN U O K
①
②
③
④
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
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:
!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.

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 PV-
Module 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
14
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 common-
positive equipment is used, and the positive pole is grounded, the controller may get
damaged.
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.

15
6.1 LCD Display
6.1.1 Status Description
Item Icon Status
PV array
Daytime, not charging
Daytime, charging
Night
PV voltage、 current and ampere hours
The total charge ampere hours of the solar panel
Battery
Battery capacity
Battery voltage(
lithium battery)
Set Charging target voltage for
Battery current
Battery state of charge(in %)
Temperature(Clear Bluetooth Device Password)
Battery type(Programmable)
Load
Fault
Load current and ampere hours
Load voltage(Set low voltage protection voltage)
The total discharge ampere hours of the load
Load mode(Programmable)
The load is on
The load is off
Fault indication, see 6.1.4
!PV array charge ampere hours and load ampere hours are off after power failure。
6, Operation

6.1.2 The interface automatically cycles in the displayed sequence
16
6.1.3 Press OK to browse the interface

Mode
6.2 Key function
6.3 USB interface
Browse interface
Static display
Short press OK
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.
Press the MENU key for 1s to enter the setting mode when the
icon appears on the display interface, and exit automatically after 30s
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.
Setting parameter
Load On/Off
Operating
Status Icon Description
Low voltage
Over voltage
Battery level shows empty, fault icon display,
battery frame flashes, the LCD screen displays E3
Battery level shows full, fault icon display,
battery flashes, the LCD screen displays E4
Load off, fault icon display, load icon flashes,
the LCD screen displays E1
Load off, fault icon display, load icon flashes,
the LCD screen displays E2
The charge and discharge are off, fault icon display,
icon ℃ flashing, the LCD screen displays E5
Controller does not correctly identify system voltage.
Short circuit
Over current
Over temperature
Controller does not
correctly identify
system voltage
E1
E2
E3
E4
E5
MENU OK
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.
6.1.4 Fault indication
17