Lumiax Magic Series User Manual

www.lumiax.com
1.03.02.10038-1
Lumiax
Magic your solar life
Magic series
MPPT Solar Controller
12/24/48V，750/1500/3000W
User Manual
User Manual_Magic series_KC
CE, Rohs, ISO9001:2015
Subject to change without notice!
Contents
1.Safety instructions and waiver of liability ..............................................................................2
1.1 Safety Instructions
1.2 Liability Exclusion
2.Pruduct Overview.......................................................................................................................3
3.Dimensions..................................................................................................................................4
4.Structure & Accessory ...............................................................................................................5
4.1 Structure
4.2 Accessories(Included) ....................................................................................................................................7
4.3 Accessories(Optional) ....................................................................................................................................7
5.Installation ..................................................................................................................................8
5.1 Installation Notes
5.2 Battery cables and battery fuse
5.3 PV cables ............................................................................................................................................................9
5.4 Mounting ...........................................................................................................................................................11
6.Operation ....................................................................................................................................14
6.1 LED indicator
6.2 Key function
6.3 Status display
6.4 Menu structure.................................................................................................................................................15
6.5 Operation status display...............................................................................................................................17
6.6 Main menu display .........................................................................................................................................18
6.7 Fault indication.................................................................................................................................................23
7.Troubleshooting,Protections and Maintenance.....................................................................24
7.1 Troubleshooting
7.2 Protection ..........................................................................................................................................................26
7.3 Maintenance .....................................................................................................................................................27
8.Technical Data.............................................................................................................................28
8.1 Electrical Parameters
8.2 Mechanical Parameters .................................................................................................................................29
8.3 Environmental Parameters
1
Dear Clients,
Thanks for selecting the Magic series solar controller.
Please take the time to read this user manual, as it will help you take full advantage of the
controller's features. This manual gives important recommendations for installing,
programming, using and so on. Read it carefully in your own interest and pay attention to the
safety recommendations in it please.
1, Safety instructions and waiver of liability
1.1 Safety Instructions
WARNING: Danger of explosion from sparking.
Danger of electric shock.
CAUTION: Indicates a critical procedure for safe and proper operation of the
controller.
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) It is advised to read this manual carefully before the product is installed and put into use.
(2) There are no user serviceable parts inside the controller. Do not disassemble or attempt to
repair the controller.
(3)Install the controller at well ventilated places, the controller's heat sink will be very hot during
operation.
(4)Refer to the specifications provided by the manufacturer of the battery to ensure that the
battery is suitable for use with this product. The battery manufacturer's safety instructions should
always be observed.
(5)Protect the solar modules from incident light during installation, e.g. cover them.
(6)Ensure that the connection cables are provided with fuses or circuit breakers.
(7)Please make sure to switch off all connections of the PV array and the fuse/breakers which close
to the battery before the controller installation and adjustment.
(8)Power connections must remain tight to avoid excessive heating from the loose connection.
(9)The installer of the product must provide a means for cable strain relief to prevent the
transmission of stress to the connections.
(10)Do not open the controller casing. Only the terminal cover may be removed by a technical
professional for installation.
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, Product 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%. The controller can rapidly track the maximum power point(MPP) of PV array to obtain the
maximum energy of the panel, especially in case of a clouded sky, when light intensity is changing
continuously, an ultra fast MPPT controller will improve energy harvest by up to 30% compared to
PWM charge controllers.
The limitation function of the charging power and current, and automatic power reduction
function fully ensure the stability when works with oversize PV modules and operate under high
temperature environment.
2.1 Outstanding features
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
LCD can display lastest daily/monthly/yearly charging data, total 5 years
12/24/48V automatic recognition
Liquid, Gel, AGM and Lithium battery for selection
The separate ports for remote temperature sensor and voltage sensor, make battery temperature
compensation and voltage detection more accurate
Automatic power reduction when over-temperature
Relay control the switching signals of external loads and chargers for hybrid power supply system
like solar energy with utility electricity or gas generation
Dual automatic restriction function when exceeding rated charging power and charging current
5-year memory battery voltage and historical charging data
Android APP version for Bluetooth communication
IoT wireless or RS485 communication functions optional
Monthly charging data can be calculated and displayed by grouping and graphs
Modbus protocol based on RS485 standard for remote communication need
Multi-functional AUX port can meet customized requirements
Common positive design, suitable for telecom applications
Perfect EMC & thermal design
Full automatic electronic protect function
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 make 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 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 controllers connect the solar module directly to the battery when recharging. This
requires that the solar module operate 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
0
VP curve
Typical
Battery
Voltage
Range
10.8V
15V 17V
Pmax-Px
Px
PWM
Controller
Operating
Range
V(V)
0
10.8V
15V 17V
V(V)
Nominal 12 Volt Solar Module I-V cur ve and output power graph.
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 or even less than 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 battery voltage. Additionally, the savings in wiring due to reduced solar current
make MPPT worthwhile even in hot climates.
2.3 MPPT—Four Charging Stage
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. Every time when the controller is powered on, if it detects
neither over discharged nor overvoltage, the charging will enter into 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 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 Float stage, loads can continue to draw power from the battery. In the event that 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 Float stage and return to Bulk charging.
Equalization 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 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
battery.
Risk of explosion!
Equalizing flooded batter y can produce explosive gases, so well
ventilation of batter y box is necessar y.
3,Dimensions
Unit:mm
109
230
Φ6 40
7
Φ10
339
Φ6
3
40
109
4
4.1 Structure
①
②
③
⑤
+
MENU
④
OK
⑥
⑫
⑦
⑧ ⑨
⑩⑪
RS485 AUX
IoT
RLY1 RLY2
⑬ ⑭ ⑮ ⑯ ⑰
Component
1 Heat Sink
Description
Dissipate controller heat
2
Sheet metal case
Internal PCBA protection
3
LCD
Display settings and operating status
4
Operating keys
MENU OK
5
Indicator lights
Operating state indication of controller
6
Grounding point
If a grounding point is not already present then this must
be created
Terminal cover
The case to cover the terminals and wires connections
8
Solar module terminals
Connected solar modules
9
Battery terminals
Connected the battery
7
10 External temperature sensor Collect temperature information for temperature
compensation
11 Battery voltage sensor
Connect the cable directly to the battery for checking the
12 Button Cell
Data can still be saved after the battery is disconnected
13 RS485 interface
14 AUX
Multi-functional AUX port can meet customized
battery voltage
Communication through RS485 interface
requirements
15 IoT interface
16 Load Control Relay1
Connect with IoT module
17 Utility/Generator Relay2
Control Utility/Generator ON/OFF
Control Load ON/OFF
5
4.1.1 Battery voltage sensor
For compensating possible cable losses during charging, two sense wires can be connected
to measure voltage directly on the battery. Use wire with a cross-section of 0.75mm² and
insert a 0.1 Amp fuse close to the battery.
During battery charging, the charger will compensate the voltage drop over the DC cables up
to a maximum of 3 Volt. If the voltage drop threatens to become larger than 3V, the charging
current is limited in such a way that the voltage drop remains limited to 3V. The "Bat.ext.volt"
on the LCD will display "--- " if the voltage drop exceeds 3 Volt. At this time, you need to
connect the voltage sensor or check whether the wiring is correct.
4.1.2 Load control relay1 and Utility/Generator relay2
The relay outputs are potential-free, normally-open contacts. Rated Value：3A/30VDC.
(1) Load control relay1
The initial state of the contacts is normally-open. The relay outputs can be used for switching
devices or loads. Heavy loads connected directly to the battery can be switched using an
additional power relay connected to this relay.
When the battery voltage is lower than the low-voltage protection voltage, the relay will be
turned off. When the battery voltage is higher than the low-voltage recovery voltage, the relay
will be opened again.
(2)Utility/Generator relay2
The initial state of the contacts is normally-close. The relay outputs can be used for
connecting power generation equipment, such as diesel engine and so on.
When the battery voltage is lower than the low-voltage protection voltage + 0.2V, the relay
will be turned on to access to external power generation equipment. When the battery voltage
is higher than the low-voltage recovery voltage, the relay will be turned off again.
You can choose whether to start the automatic maintenance function of the diesel engine.
For specific operations, please refer to 6.6 Main menu display.
The working time of the diesel shall not be less than 15 minutes each time it is
started.
4.1.3 AUX
Multi-functional AUX port can meet customized requirements. Aux is defined as current
sensor by default. Please customize it if you need other functions.
The current of the external equipment is calculated by setting the parameters of the current
sensor such as the maximum measuring current and the maximum output voltage. After the
correct setting, the external current will be displayed on the LCD screen of the controller.
For specific operations, please refer to 6.6 Main menu display.
6
4.1.4 RS485
The charger is equipped with a RS485 port with RJ11 sockets, the RJ11 interface is defined as
follows:
Pin No.
Definition
NC
2
NC
3
RS485-A
4
5
RS485-B
NC
6
NC
1 2 3 4 5 6
NC
NC
RS485-B
RS485-A
NC
NC
1
RJ11 for controller
The RS485 interface on this charger is not galvanically isolated and can not be
grounded. Do not short circuit unused pin (Note NC).
4.2 Accessories(Included)
Item
Accessory
Model
Number
1
Local temperature sensor
2P-3.81mm
1Pcs
2
Battery voltage sensor terminal
2P-5.08mm
1Pcs
3
AUX terminal
2P-3.81mm
1Pcs
4
Load control relay1 terminal
2P-3.81mm
1Pcs
5
Utility/Generator relay2 terminal
2P-3.81mm
1Pcs
6
Mounting screws
M8*40mm
4Pcs
7
RS485 interface cable
RJ11*1m
1Pcs
4.3 Accessories(Optional)
4.3.1 Remote Temperature Sensor
The controller is shipped with a temperature sensor of length 80mm. If you need other
components you need to purchase separately.
The remote temperature sensor can measure the temperature at the battery and use this data
for very accurate temperature compensation. The standard length of the cable is 3m (length
can be customized). The temperature sensor connected via interface ⑩.
1. The connection polarity is irrelevant.
2. If the external temperature sensor is not connected or damaged, the internal
temperature will be used for temperature compensation during charging.
3. If the controller and battery are not located in the same room then an
external temperature sensor for measuring the battery temperature must be
installed.
4.3.2 IoT module
After the controller is connected with the IoT module through the IoT interface, the
operating status and related parameters of the controller can be changed and monitored by
the mobile APP software or PC program.
Please contact with our sales about IoT wireless communication information.
7
5, Installation
Please read all instructions and precautions in the manual before installing.
It is recommended to remove the acrylic protective film covering the LCD
screen before installation.
5.1 Installation Notes
(1)Do not open the controller sheet metal case, only the terminal cover may be removed by
a technical professional for installation.
(2)Before wiring installation and adjustment of controller, Always disconnect the solar
modules and insurance or circuit breaker of battery terminal.
(3)Only to comply with the range of the battery charge controller.
(4)Batteries store a large amount of energy, never short circuit a battery under all
circumstances. We strongly recommend connecting a fuse directly to the battery to avoid any
short circuit at the battery wiring.
(5)Batteries can produce flammable gases. Avoid making sparks, using fire or any naked
flame. Make sure that the battery room is ventilated.
(6)Uses insulated tools and avoid placing metal objects near the batteries.
(7)Be very careful when working with batteries. Wear eye protection. Have fresh water
available to wash and clean any contact with battery acid.
(8)Avoid touching or short circuiting wires or terminals. Be aware that the voltages on
special terminals or wires can be as much as twice the battery voltage. Use isolated tools,
stand on dry ground, and keep your hands dry.
(9)Prevent water from entering the internal controller, outdoor installation should avoid
direct sunlight and rain penetration.
(10)After installation check that all connections are tight line, avoid heat accumulation
caused by virtual access danger.
(11)Multiple same models of controllers can be installed in parallel on the same battery bank
to achieve higher charging current. Each controller must have its own solar module(s).
(12)Select the system cables according to 5A/mm² or less current density.
5.2 Battery cables and battery fuse
Cable strain relief must be provided, close to battery and PV connectors.
In order to utilize the full capacity of the product, battery cables with sufficient cross section
and a fuse of sufficient current rating should be used.
Rated charge current
60A
Battery Fuse Rating
80A
Cable Length
Wire Size
2 * 1.5m
16mm²/5AWG
2 * 2.5m
25mm²/3AWG
2 * 5.0m
Not recommended
!1.The battery wire size recommended is for battery terminal without inverter.
2.Please consult local regulations regarding maximum allowed current carrying capacity
of cables.
8
5.3 PV Array
The voltage on the PV input should never exceed 200V under any condition.
The charger will be permanently damaged if the input voltage is too high.
Cable strain relief must be provided, close to PV and battery connectors.
5.3.1 PV cables
As the core component of PV system, controller could be suitable for various types of PV
modules and maximize converting solar energy into electrical energy. According to the open
circuit voltage (Voc) and the maximum power point voltage (Vmpp) of the MPPT controller,
the series number of different types PV modules can be calculated.
The required PV cable cross section depends on array power and voltage. The table below
assumes that maximum PV power has been installed. Cable cross section can be reduced in
case of smaller solar arrays.The best efficiency is reached at a PV input voltage that is twice the
battery voltage. DC circuit breakers or fuses must be installed in the positive and negative PV
cables, to enable isolation of the charger during installation or maintenance.
Solar array
MPP-Voltage[V]
12V System(Solar array up to 750W)
Solar array
Cable Length
Cable Length
MPP-Current[A]
2 * 5m
2 * 10m
Cable Length
2 * 20m
18
42
16mm²/5AWG
35mm²/2AWG
Not recommended
36
21
10mm²/7AWG
16mm²/5AWG
25mm²/3AWG
54
14
6mm²/10AWG
16mm²/5AWG
25mm²/3AWG
72
10
4mm²/11AWG
6mm²/10AWG
16mm²/5AWG
90
8
2.5mm²/13AWG
4mm²/11AWG
6mm²/10AWG
108
7
2.5mm²/13AWG
4mm²/11AWG
6mm²/10AWG
≥126
6
2.5mm²/13AWG
4mm²/11AWG
6mm²/10AWG
Solar array
MPP-Voltage[V]
24V System(Solar array up to 1500W)
Solar array
Cable Length
Cable Length
MPP-Current[A]
2 * 5m
2 * 10m
Cable Length
2 * 20m
36
42
16mm²/5AWG
35mm²/2AWG
Not recommended
54
28
16mm²/5AWG
25mm²/3AWG
35mm²/2AWG
72
21
10mm²/7AWG
16mm²/5AWG
35mm²/2AWG
90
17
6mm²/10AWG
16mm²/5AWG
25mm²/3AWG
108
14
6mm²/10AWG
10mm²/7AWG
25mm²/3AWG
≥126
12
4mm²/11AWG
6mm²/10AWG
16mm²/5AWG
9
48V System(Solar array up to 3000W)
Solar array
MPP-Voltage[V]
Solar array
MPP-Current[A]
Cable Length
2 * 5m
Cable Length
2 * 10m
72
42
16mm²/5AWG
35mm²/2AWG
Not recommended
90
34
16mm²/5AWG
35mm²/2AWG
Not recommended
108
28
16mm²/5AWG
25mm²/3AWG
35mm²/2AWG
≥126
24
10mm²/7AWG
16mm²/5AWG
35mm²/2AWG
Cable Length
2 * 20m
!please consult local regulations regarding maximum allowed current carr ying
capacity of cables.
5.3.2 PV array maximun power
The MPPT controller has the function of current/power-limiting, that is during the charging
process, when the charging current or power exceeds the rated charging current or power, the
controller will automatically limit the charging current or power to the rated charging current
or power, which can effectively protect the charging parts of controller, and prevent damages
to the controller due to the connection of some over-specification PV modules.
!If "Actual charging power of PV array＞Rated charging power of controller"
or "Actual
charging current of PV array＞Rated charging current of controller" ，the controller will
carry out the charging as per the rated current or power.
According to "Peak Sun Hours diagram", if the power of PV array exceeds the rated charging
power of controller, then the charging time as per the rated power will be prolonged, so that
more energy can be obtained for charging the battery. However, in the practical application,
the maximum power of PV array shall not be greater than 1.2 x the rated charging power of
controller. If the maximum power of PV array exceeds the rated charging power of controller
too much, it will not only cause the waste of PV modules, but also increase the open-circuit
voltage of PV array due to the influence of environmental temperature, which may increase
the probability of damage to the controller rise. Therefore, it is very important to configure the
system reasonably.
10
5.4 Mounting
Step 1: Determination of Installation Location and Heat-dissipation Space
Do not mount the solar charge controller outdoors or in wet rooms. Do not subject the solar
charge controller to direct sunshine or other sources of heat. Protect the solar charge
controller from dirt and moisture. Mount upright on the wall on a non-flammable substrate.
Maintain a minimum clearance of 15cm below and around the device to ensure unhindered air
circulation. Mount the solar charge controller as close as possible to the batteries.
Mark the position of the solar charge controller fastening holes on the wall, drill 4 holes and
insert dowels, fasten the solar charge controller to the wall with the cable openings facing
downwards.
If the controller is to be installed in an enclosed box, it is important to ensure
reliable heat dissipation through the box.
>15CM
WARM AIR
COOL AIR
>15CM
Step 2: Preparing the cables
(1)Label the cable ends with M+, M-, B+ and B-.
(2)Lay the battery and module cables directly next to each other. Do not yet connect the
cables.
(3)Connect the external battery fuse to the "B–" battery cable, in an easily accessible
position close to the battery.
(4)Switch off the external battery fuse: Remove the fuse insert from the fuse holder
(safety fuse) or switch off the DC line circuit breaker and secure it against being switched
on again.
(5)Connect the DC load circuit breaker to the module cables "M-" , in an easily accessible
position close to the controller.
(6)Switch off the DC load circuit breaker and secure it against being switched on again.
(7)Remove the terminal cover (release the 4 fastening screws with a screwdriver).
Step 3: Connecting the battery
Connect the battery cable and external battery fuse to the battery connection of the
controller and to the battery.
We recommend installing the external battery fuse in the "B–" cable and the
current is 1.25 to 2 times the rated current of the controller.
11
Step 4: Connecting the battery voltage sensor
The external battery voltage sensor cable allows the controller to directly measure the voltage at
the battery. This voltage value can be used for compensation of voltage drops across the battery
cables. This means that the voltage measurement is not affected by powerdependent voltage
drops across the battery cables.
A 2-pin plug with screw terminals for connecting the sensor cable is supplied with the device.
A cable with a cross-section of 0.14-1.5 mm² (AWG 28-16) can be used.
The battery voltage sensor cable is not supplied with the device.
1. The connection polarity is irrelevant.
2. Install a fuse(＜ 1A) in the connection between the battery voltage sensor cable
and the battery. This protects the cable from burning in the case of a short-circuit in
the battery voltage sensor cable.
Step 5: Grounding
This product is a common-positive controller, if any of one positive is grounded, all the
positive terminals of PV and battery will be grounded simultaneously. However, according to
the practical application, all the positive terminals of PV array and battery can also be
ungrounded, but the grounding terminal on its case must be grounded, which may effectively
shield the electromagnetic interference from the outside, and prevent some electric shock to
human body due to the electrification of the case.
The positive pole of the controller and the shell cannot be grounded at the
same time
Step 6: Connecting the solar module
(1)Safely cover the module (ensure that wind cannot blow off the covering).
(2)Connect the module cable with the (open) DC load circuit breaker to the solar module
connection of the controller and the solar module.
(3)Remove the covering from the solar module.
Step 7: Connecting accessories
(1)Connect the remote temperature sensor cable
Connect the remote temperature sensor cable to the interface ⑪ and place the other end
close to the battery.
(2)Connect the accessories for RS485 or IoT communication, refer to the accessories list.
Step 8: Supplying the controller with voltage
(1)Please make sure the battery and the solar module have been connected as described
previously.
(2)Fit the terminal cover.
(3)Fit the fastening screws.
(4)Switch on the external battery fuse: Insert the fuse insert into the fuse holder (safety fuse)
or switch on the DC line circuit breaker. The controller automatically starts operating and then
displays the system states.
(5)Switch on the DC load circuit breaker of the solar module, if the PV is charging, the green
charge indicator will flash.
If the controller is not operating properly or the battery indicator on the
controller shows an abnormality, please refer to "7.2 Troubleshooting".
12
+
MENU
OK
RS485 AUX
IoT
RLY1 RLY2
Utility/Generator Relay2
Grounding
DC Breaker
Load Relay1
DC/AC
Inverter
AC/DC
Charger
Fuse
Fuse
Remote Batter y Voltage
sensor cable
Remote Temperature
sensor cable
Wiring Diagram
13
6, Operation
6.1 LED indicator
LED
Status
Green
(PV Panel)
Yellow
(Battery)
Function
On
Solar panel is connected, but not charged
Off
PV reverse connection or PV overvoltage protection
Fast flash(0.1/0.1s)
Flash(0.5/0.5s)
MPPT charging
Equal or Boost Charging
Slow flash(0.5/2s)
On
Float Charging
Battery is normal
Off
Over voltage protection
Fast flash(0.1/0.1s)
Low voltage protection
Slow flash(0.5/2s)
Battery voltage is low
6.2 Key function
Key
MENU
OK
Function
Enter or exit settings menu.
Stop blinking the selected number to confirm the change
Navigates one menu level down.
Causes the selected numeral to blink so that it can be modified.
Moves the selection bar or the display content upwards/downwards.
Increases/decreases a setting value by 1 step.
6.3 Status display
The status display consists of data, time, communication mode, PV power/ current and
battery voltage.
② The figures show the respective basic settings when
2019-01-01 12:30 ①
485
battery chargingis switched on and when the charging
③
④
is switched off.
①Date and time can be set.
②Communication mode can be set, default RS485.
⑤
⑥
⑦
2000W
21.8A
59.2V
If Bluetooth is connected to the mobile phone, the LCD
will display the Bluetooth icon.
2019-01-01 12:30
485 ③The solar module is illuminated
, the controller
③
recognizes as daytime.
The solar module is not illuminated
, the controller
recognizes as nighttime.
④The arrow symbol indicates charging of the battery.
0W
0.0A
52.0V
⑤Actual charging power.
⑥Actual charging current.
⑦Battery voltage.
14
6.4 Menu structure
Main menu
Static display
Bat.ext.volt.
Bat. volt.
Bat. Curr.
Bat. power
:
:
:
:
28.0V
28.0V
37.5A
1050W
PV volt.
:
Accumulation :
Running days :
Temperature :
Relay01
Relay02
Ext.curr.
1.System setting
2.Battery setting
3.Data logger
4.Information
OK
1.System settings
MENU
54.0V
80KWH
60D
30℃
:
:
:
10WH
MENU
ON
OFF
30A
MENU
1.1 Language
1.2 Set time
1.3 Communication mode
1.4 Backlight time
1.5 Set diesel
1.6 Set AUX
1.7 Factory reset
MENU
2.1 Bat. type
2.2 Bat. volt
2.3 LVD
2.4 LVR
:
:
:
:
LIQ
AUTO
11.2V
12.0V
MENU
2.5 Equal volt
2.6 Boost Volt
2.7 Float volt
:
:
:
14.8V
14.5V
13.7V
OK
2.Battery setting
OK
Next
page
OK
Next
page
Total: 600WH
10
8
6
4
2
H
0
4
8
12
100WH
16
20
24
Total: 25KWH
10
OK
3. Data logger
8
6
MENU
4
D
2
0
5
10
15
20
25
OK
Next
page
30
OK
4. Information
MENU
!
3.1 Total in
3.2 Battery volt
For the sake of clarity, only the OK, MENU and
15
MT6020-Pro
APP: V1.3.5
SYS : V1.5.1
HW: V1.0
operating keys are illustrated.
1.System settings
OK
MENU
1.1 Language
1.2 Set time
1.4 Backlight time
Language : English
OK
OK
1.1 Language
1.3 Communication mode
MENU
MENU
MENU
1.2 Set time
Set time
2019-01-01
12:30
OK
MENU
MENU
MENU
OK
MENU
OK
1.5 Set diesel
MENU
MENU
OK
Backlight time
MENU
030s
OK
Diesel generator
Auto maint. : ON
MENU
1.6 Set AUX
OK
MENU
OK
MENU
OK
3. Data logger
MENU
Communication set
Comm. mode:RS485
Device ID
: 001
1.4 Backlight time
MENU
1.5 Set diesel
1.6 Set AUX
1.7 Factor y reset
1.3 Communication mode
1.7 Factor y reset
MENU
AUX setting
Max in curr. :1000A
Max out volt.: 10.0V
Clear data
Reset BLE password
Reset
10WH
3.1 Total in
3.2 Batter y voltage
OK
OK
3.1 Total in
8
6
MENU
MENU
Total: 600WH
10
4
2
H
0
8
4
12
100WH
16
20
24
Total: 25KWH
10
MENU
8
6
4
D
2
0
10
5
15
10KWH
20
25
30
Total: 300KWH
10
MENU
8
6
4
D
2
0
60
120
180
100KWH
240
300
360
Total: 1.5MWH
35
MENU
28
21
14
Y
7
0 2023 2022 2021 2020 2019
MENU
16
3.2 Batter y voltage
OK
MENU
DATE
08/31
08/30
08/29
08/28
08/27
08/26
08/25
MAX
28.8V
28.8V
28.6V
28.8V
27.6V
28.0V
28.8V
MIN
25.0V
24.9V
24.5V
24.6V
23.5V
24.0V
24.5V
6.5 Operation status display
Press
or
to enter this operation status interface.
Bat.ext.volt.
Bat. volt.
Bat. C urr.
Bat. power
: 28.0V
: 28.0V
: 37.5A
: 1050W
PV volt.
: 54.0V
Accumulation : 80KWH
Running days :
60D
Temperature :
30℃
Relay01
Relay02
Ext.curr.
:
:
:
10WH
ON
OFF
30A
Total: 600WH
10
8
6
4
2
0
H
4
8
12
100WH
16
20
24
Total: 25KWH
10
8
6
4
2
0
D
5
10
15
20
25
30
Bat.ext.volt
Battery voltage measured via the battery voltage sensor cable, in volts (V).
If the battery voltage sensor is not connected or the voltage drop
exceeds 3V, this item will display "--- ". At this time, you need to connect
the voltage sensor or check whether the wiring is correct.
Bat. volt
The battery voltage measured at connection "B+/B–", in volts (V).
Bat.curr
The current flowing from the controller to the battery, in Amperes(A).
Bat. Power
Actual power being used for charging the battery, in watts (W).
PV volt
Voltage present at PV array connection, in volts(V).
Accumulation
Actual power being used for charging the battery after the controller is
working, in watt-hour (WH) or kilowatt-hour(KWH).
Running days
Number of operating days since initial commissioning of the device.
Temperature
This temperature is tested by external sensor for battery temperature
compensation. If no external temperature sensor is connected, the
temperature inside the controller will be displayed and used for
temperature compensation during charging, in Celsius degree(℃).
Relay 01
Switching state of load control relay 1.
Relay 02
Switching state of Utility/Generator relay 2.
Ext.curr
Aux interface is connected with current transformer to display the
detected current of external equipment.
Graphical overview representing the energy input in the last 24 hours.
Memory of the information on the amount of input energy in WH or
KWH, the vertical axis of the figure varies according to the maximum
charging energy.
Graphical overview representing the energy input in the last 30 days.
Memory of the information on the amount of input energy in WH or
KWH, the vertical axis of the figure varies according to the maximum
charging energy.
17
6.6 Main menu display
Press the MENU key to enter the main menu interface, the interface menu is shown below.
1.System setting
2.Batter y setting
3.Data logger
4.Information
Press the MENU key to enter the main menu interface, the interface
menu is shown as left, press
and
to browse the menu.
Press OK to enter the current menu settings
6.6.1 System settings
1.1 Language
1.2 Set time
1.3 Communication mode
1.4 Backlight time
1.1 Language
OK
MENU
Language :
English
1.2 Set time
OK
MENU
Set time
2019-01-01
12:30
1.3 Communication mode
OK
MENU
Communication set
Comm. mode :
RS485
Device ID
:
001
1.4 Backlight time
OK
MENU
Backlight time
030s
If the cursor indicates "System settings", you can press OK and the
interface displayed as shown on the left.
English is set as the default menu language at the factory, now
Chinese and English are available.
1.Press OK to enter the language settings interface, pressing the OK
key again, the language item will flash.
2.Press
to select the appropriate language.
3.Press OK or MENU to confirm.
4.Press MENU again to exit the current settings.
1.Press OK to enter the time setting interface and the year is selected.
2.Press OK, the year display flashes.
3.Press
to change the year.
4.Press OK. The year stops blinking and the month flashes.
5.Press
to change the month.
6.Repeat steps 4 and 5 for the day, hour and minutes.
7.Press MENU again to exit the current settings.
1.Press OK to enter the communication setting interface and the
communication mode is selected.
2.Press OK, the communication mode display flashes.
3.Press
to change the comm. mode, you can select RS485 or IoT.
4.Press OK. The comm. mode stops blinking and the device ID flashes.
5.Press
to change the device ID, the setting range is 1~247.
6.Press OK or MENU to confirm.
7.Press MENU again to exit the current settings.
1.Press OK to enter the backlight time setting interface.
2.Press OK, the backlight time display flashes.
3.Press
to change the backlight time, the setting range is 0~600.
4.Press OK or MENU to confirm.
5.Press MENU again to exit the current settings.
18
1.5 Set diesel
OK
MENU
Diesel generator
Auto maint.
:
ON
1.Press OK to enter the diesel setting interface.
2.Press OK, the auto maintain setting item flashes.
3.Press
to select the auto maintain item from ON and OFF.
4.Press MENU to confirm.
5.Press MENU again to exit the current settings.
If "ON" is selected, the automatic maintenance function of the diesel will be
started. If the diesel has not been started within 60 days, the diesel will be
started at night. The working time of the diesel shall not be less than 15 minutes
each time it is started.
If "OFF" is selected, the diesel engine will not start until Utility/Generator relay2
is turned on.
Aux is defined as current sensor by default. The current of the
external equipment is calculated by setting the parameters of the
current sensor such as the maximum measuring current and the
maximum output voltage. After the correct setting, the external
current will be displayed on the LCD screen of the controller.
1.6 Set AUX
OK
MENU
AUX setting
Max in curr. :
Max out volt. :
1000A
10.0V
1.7 Factor y reset
OK
MENU
Clear data
Reset BLE password
Reset
Clear data
1.Press OK to enter the AUX setting interface.
2.Press OK, the max input current setting item flashes.
3.Press
to change the max input current from 10A to 1000A.
4.Press OK. The max input current stops blinking and the max output
voltage flashes.
5.Press
to change the max output voltage from 0.1V to 10V.
6.Press MENU to confirm.
7.Press MENU again to exit the current settings.
1.Press OK to enter the factory reset setting interface and the clear
data is selected.
2.Press OK, the clear log data dialogue appears.
3.Press OK, all log data is deleted and the LCD display "Clear done".
4.Press MENU again to exit the current settings.
5. Repeat steps 3 and 4 for "ReSet BLE password" and "Reset".
Refer to the following figure for the operation steps.
OK
MENU
ReSet BLE password
OK
MENU
Reset
OK
MENU
Clear log data
Are you sure?
Menu
Reset BLE password
Are you sure?
Menu
19
Clear done
OK
Clear done
OK
Clear done
OK
Reset factor y
Are you sure?
Menu
OK
OK
OK
6.6.2 Batter y setting
2.1 Bat. type
2.2 Bat. V olt
2.3 LVD
2.4 LVR
:
:
:
:
LIQ
AUTO
11.2V
12.0V
:
:
:
14.8V
14.5V
13.7V
OK
2.5 Equal volt
2.6 Boost V olt
2.7 Float volt
The batter y type is
LiQ, AGM or GEL.
If the cursor indicates "Battery setting", you can press OK and the
interface displayed as shown on the left.
2.1 Bat. type (Battery Type)
This item can change the battery type, press the OK key to enter the
menu, you may press
to change the battery type.
Possibilities for programming: GEL, AGM, LIQ, LI.(default : GEL)
2.2 Bat. Volt (Battery Voltage)
This item suitable for Gel, AGM and LIQ battery, the controller can
be set to identify only fixed system voltage or automatically system
voltage.
Possibilities for programming: 12V, 24V, 48V, AUTO. (default : AUTO)
2.3 LVD (Low Voltage Disconnect)
This item can change the low voltage disconnect data, press the OK
key to enter the menu, you may press
to change the value.
Possibilities for programming:
10.8~11.8V/21.6~23.6V/43.2~47.2V(default : 11.2V/22.4V/44.8V).
Possibilities for programming: 12V, 24V, 48V, AUTO.
2.4 LVR (Low Voltage Reconnect)
This item can change the low voltage reconnect data, press the OK
key to enter the menu, you may press
to change the value.
Note: The solar charge controller allows the smallest difference
between LVD and LVR is 0.6/1.2/2.4V. If you want to program a high
level for disconnection you must first increase the reconnection level.
Possibilities for programming:
11.4~12.8V/22.8~25.6V/45.6~51.2V(default: 11.8V/23.6V/47.2V)
2.5 Equal volt (Equalization voltage)
This item can change the equalization voltage, press the OK key to
enter the menu, you may press
to change the value.
Note: 1.The equalization charging can only be adjusted for batteries
with liquid electrolyte, since high equalising voltages are harmful for
sealed batteries. The maximum equalising voltage value should be
stated on the battery manufacturer's data sheet.
2.This window is deactivated if you have selected "GEL" battery.
Possibilities for programming:
14.0~15.0V/28.0~30.0V/56~60.0V(default: 14.8V/29.6V/59.2V)
2.6 Boost volt (Boost voltage)
This item can change the boost voltage, press the OK key to enter
the menu, you may press
to change the value.
Possibilities for programming:
14.0~14.8V/28.0~29.6V/56.0~59.2V(default: 14.5V/29.0V/58.0V)
2.7 Float volt (Float voltage)
This item can change the float voltage, press the OK key to enter
the menu, you may press
to change the value.
Possibilities for programming:
13.0~14.5V/26.0~29V/52.0~58.0V(default: 13.7V/27.4V/54.8V)
20
2.1 Bat. Type (Battery Type)
Press
to change the battery type as LI.
2.2 0℃ charge (0℃ charging)
"0℃ Charge" can be set to "Yes", "Slow" or "No". When the
OK
controller detects that the ambient temperature is higher than 0℃,
the charging function is normal. when the ambient temperature is
2.5 LVD
:
42.4V
2.6 LVR
:
48.0V
low than 0℃, if the "0℃ Charge" is set to “Yes”, the charging
function is normal, else if the "0℃ Charge" is set to “slow”, the max
The batter y type is LI. charging current is 20% of the rated current, else if the "0℃ Charge"
is set to “No”, the controller does not charge the battery.
Possibilities for programming: Yes, No, Slow. (default : Yes)
2.3 CVT (Charging target voltage)
This item can change the charging target voltage, press the OK key
to enter the menu, you may press
to change the value.
Possibilities for programming: 10.0~64.0V.（default : 57.6V)
2.4 CVR (Charging recovery voltage)
This item can change the charging recovery voltage, press the OK
key to enter the menu, you may press
to change the value.
Possibilities for programming: 9.2~63.8V.(default : 56.0V)
2.5 LVD (Low Voltage Disconnect)
This item can change the low voltage disconnect data, press the OK
key to enter the menu, you may press
to change the value.
Possibilities for programming: 9.0~60.0V.(default : 42.4V)
2.6 LVR (Low Voltage Reconnect)
This item can change the low voltage reconnect data, press the OK
key to enter the menu, you may press
to change the value.
Note: The solar charge controller allows the smallest difference
between LVD and LVR is 0.6V. If you want to program a high level for
disconnection you must first increase the reconnection level.
Possibilities for programming: 9.6~62.0V.(default : 48.0V)
2.1 Bat. Type
2.2 0℃charge
2.3 CVT
2.4 CVR
:
:
:
:
LI
Yes
57.6V
56.0V
6.6.3 Data logger
3.1 Total in
3.2 Batter y voltage
3.1 Total in
Memory of the information on the amount of input energy in
Wh/KWh. Graphical overview representing the last 24 hours.
10WH
Total: 600WH
10
8
6
4
2
0
H
4
8
21
12
16
20
24
Memory of the information on the amount of input energy in
Wh/KWh. Graphical overview representing the last 30 days.
100WH
10
Total: 25KWH
8
6
4
2
D
0
10
5
15
20
25
30
Memory of the information on the amount of input energy in
Wh/KWh. Graphical overview representing the last 360 days.
10KWH
Total: 300KWH
10
8
6
4
2
D
0
60
120
180
240
300
360
Memory of the information on the amount of input energy in
Wh/KWh. Graphical overview representing the last 5 years.
100KWH
Total: 1.5MWH
35
28
21
14
7
0
3.1 Total in
3.2 Batter y volt
Y
2023 2022 2021 2020 2019
3.2 Battery voltage
Record of the minimum and maximum battery voltage for each day
over the last 60 days.
Date
08/31
08/30
08/29
08/28
08/27
08/26
08/25
Max
28.8V
28.8V
28.6V
28.8V
27.6V
28.0V
28.8V
Min
25.0V
24.9V
24.5V
24.6V
23.5V
24.0V
24.5V
22
Date
07/09
07/08
07/07
07/06
07/05
07/04
07/03
Max
28.4V
28.8V
28.6V
28.8V
27.6V
28.0V
28.8V
Min
24.0V
24.9V
24.5V
24.6V
23.5V
24.0V
24.5V
6.6.4 Information
MT6020-Pro
APP: V1.3.5
SYS : V1.5.1
HW: V1.0
This item displays the system of the controller.
MT6020-Pro: Product name
APP: Software version of the display unit.
SYS: Software version of the power unit.
HW: Hardware version of the power unit.
6.7 Fault indication
Status
Icon
Description
Batter y over
discharged
Low VD
Batter y level shows empty, fault icon
display, batter y frame flashes,
the LCD screen displays " Low VD "
Batter y over voltage
Over VP
Batter y level shows full, fault icon display,
batter y frame flashes,
the LCD screen displays " Over VP "
PV reverse polarity
PV Reverse
Fault icon display,
the LCD screen displays " PV Reverse "
PV over voltage
PV Over Volt.
Fault icon display,
the LCD screen displays " PV Over Volt. "
Over temperature
Charge Over TD
Fault icon display,
the LCD screen displays " Charge Over TD "
Controller does not
correctly identify
system voltage
C ontroller does not correctly identify
Undefined Voltage system voltage, fault icon display, the
LCD screen displays "Undefined Voltage"
Communication
failure
Comm. Error
Display board failed to obtain controller
data, fault icon display, the LCD screen
displays "Comm. Error"
23
7, Protections,Troubleshooting and maintenance
7.1 Protection
Protection
Description
PV Over Current
The controller will limit charging power in rated charge power.
An over-sized PV array will not operate at maximum power point.
PV Short Circuit
When not in PV charging state, the controller will not be damaged in
case of a short-circuiting in the PV array.
PV Reverse Polarity
When the polarity of the PV array is reversed, the controller may not
be damaged and can continue to operate normally after the polarity
is corrected.
Night Reverse Charging
Prevents the battery from discharging through the PV module at
night.
Battery Over voltage
If there are other energy sources to charge the battery, when the
battery voltage exceeds 15.8/31.3/62.3V, the controller will stop
charging to protect the battery from overcharging damage.
Battery Reverse Polarity
Fully protection against battery reverse polarity, no damage to the
controller. Correct the connection to start normal operation.
When battery voltage drops to the setting voltage of low voltage
Battery Over discharge disconnect ,the controller will turn off the load control relay1 to
protect the battery from over discharging damage.
Battery Over
Temperature
Protection
The controller can detect the battery temperature through an
external temperature sensor.The controller stops working when its
temperature exceeds 65 °C and restart to work when its temperature
is below 55 °C.
Controller Over
Temperature
Protection *
The controller detects the internal temperature through internal
sensor, when the temperature exceeds the setting value, the
charging current will lower down followed by the decrease of
temperature, so as to control the controller's temperature rise, when
the internal temperature exceeds 85℃, the controller stops working
and restores after the temperature is below 75℃.
TVS High Voltage
Transients
The internal circuitry of the controller is designed with Transient
Voltage Suppressors (TVS) which can only protect against highvoltage surge pulses with less energy. If the controller is to be used
in an area with frequent lightning strikes, it is recommended to
install an external surge arrester.
24
*When the internal temperature exceeds 65℃, the mode of charging power reduction is
started, and the charging power decreases 10% for every 5℃ increase of internal temperature.
If the internal temperature is higher than 85℃, the controller will stop charging. But when the
temperature drops below 75℃, the controller will resume working at 70% of rated power.
When the internal temperature decreases by 5℃, the charging power increases by 10%. When
the internal temperature is lower than 60℃, the full power can be recovered.
Reduce Charging Mode
100
90
Charging Ratio(%)
80
70
60
50
40
30
20
10
0
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
Internal temperature(℃)
Recover charging from over temperature protection
100
90
Charging Ratio(%)
80
70
60
50
40
30
20
10
0
86
84
82
80
78
76
74
72
70
68
66
64
62
60
58
Internal temperature(℃)
X-axis is the internal temperature, Y-axis is the charging ratio.
For example, the full charging power of the controller is 1000W, when the
temperature rises to 75 ℃, the charging ratio drops to 80%, which is 800W.
When the controller recovers after over temperature protection, when the
temperature drops to 70 ℃, the charging power recovers to 80%, which is 800W.
25
7.2 Troubleshooting
Faults
Battery over
discharged
Battery over
voltage
Possible reason
Battery excessively discharged
by loads (deep-discharge
protection not installed).
Battery is defective.
Troubleshooting
Charge the battery with an external
charger.
Replace the battery.
Additional charging sources in
system may be causing an
excessively high voltage.
Check the external charging devices
and adjust if necessary.
Controller possibly defective.
Contact your installer.
Battery voltage too low.
Pre-charge the battery.
External fuse/circuit breaker for the Replace the external battery fuse
for the battery or reset the circuit
battery has blown/triggered.
breaker.
No display
Battery is not
being charged
Over temperature
Battery is not connected.
Battery is defective.
Battery reverse connection.
1. Unclamp all connections.
2. Connect a (new) battery with the
correct polarity.
3. Reconnect the solar module.
The LCD is mechanically defective.
Contact your installer. The device
must be replaced.
Solar module not connected.
Connect the solar module.
Short circuit at solar module
connection.
Rectify short circuit.
Incorrect solar module voltage.
Use a solar module of a suitable
voltage.
Solar module defective.
Replace the solar module.
The temperature of the battery
or controller is too high.
The controller will automatically
turn the system off. When the
temperature declines to be below
55 ºC, the controller will resume.
The system voltage is set at 12V,
Setting "2. Battery Setting" -->
Controller does not
24V or 48V, but the battery voltage
"2.2 Batt. Volt" to AUTO or to
correctly identify
is not consistent with the setting
match the battery voltage.
system voltage
system voltage.
26
7.3 Maintenance
The following inspections and maintenance tasks are recommended at least two times per
year for best performance.
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 the terminals. Inspect for loose, broken, or burnt wire connections.
Check and confirm that LCD is consistent with required. Pay attention to any
troubleshooting or error indication .Take corrective action if necessary.
Confirm that all the system components are ground connected tightly and correctly.
Confirm that all the terminals have no corrosion, insulation damaged, high
temperature or burnt/discolored sign, tighten terminal screws to the suggested torque.
Check for dirt, nesting insects and corrosion. If so, clear up in time.
Risk of electric shock!
Make sure that all the power is turned off before above operations, and then
follow the corresponding inspections and operations.
27
8, Technical Data
8.1 Electrical Parameters
Item
MT6020-Pro
Max charging current
60A
System voltage
12/24/48V
System voltage setting
Automatic/12V/24V/48V
MPPT charging voltage
before boost or equalization charging stage
Boost voltage@25℃
14.0~14.8V/28.0~29.6V/56.0~59.2V(default: 14.5/29.0/58.0V)
Equalization voltage@25℃
14.0~15.0V/28.0~30.0V/56.0~60.0V (default: 14.8/29.6/59.2V)
Float voltage@25℃
13.0~14.5V/26.0~29.0V /52.0~58.0V(default: 13.7/27.4/54.8V)
Low voltage disconnect
10.8~11.8V/21.6~23.6V/43.2~47.2V(default: 11.2/22.4/44.8V)
Low voltage reconnect
11.4~12.8V/22.8~25.6V/45.6~51.2V(default: 12.0/24.0/48.0V)
Overcharge protect
15.8/31.3/62.3V
Temp. Compensation
-4.17mV/K per cell (Boost, Equalization)，
-3.33mV/K per cell (Float)
Charging target voltage
10.0~64.0V(Lithium, default: 29.4V)
Charging recovery voltage
9.2~63.8V(Lithium, default: 28.7V)
Low voltage disconnect
9.0~60.0V(Lithium, default: 21.0V)
Low voltage reconnect
9.6~62.0V(Lithium, default: 22.4V)
Battery type
Gel, AGM, Liquid, Lithium（default: Gel)
Max volt on Bat. Terminal
65V
Max volt on PV terminal
190V(@-20℃), 170V(@25℃)
Max input power
750/1500/3000W
MPPT tracking range
（Battery Voltage + 2.0V）~Voc*0.9
Max tracking efficiency
>99.9%
Max charge conversion
98.0%
Efficiency at full load
97.5%
Self consumption
＜5W
Grounding
Common Positive
*1
*2
Data memory
5 years
Relay
3A/30VDC
Communication
BLE, IoT, RS485（Default, RJ11 interface）
*1.The maximum PV open circuit voltage must never exceed 170V at 25℃ environment
temperature.
*2.Voc means the open circuit voltage of the solar panel.
*3.Around oblique line value separately on behalf of 12/24/48V system's value.
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8.2 Mechanical Parameters
Item
MT6020-Pro
Dimensions
339 * 230 * 109mm
Mounting Dimensions
220*215mm
Mounting hole size
φ6mm
Weight
5Kg
Terminal size
2AWG(35mm²)
Recommended cable
6AWG(16mm²）
8.3 Environmental Parameters
Item
Operating temperature
MT6020-Pro
-20 ~ +60℃
Derating
From ＞65℃ internal
Fan
Internal, temperature controlled
LCD temperature range
-20 ~ +70℃
Storage temperature
-25 ~ +80℃
Ambient humidity
5 ~ 95%RH(No condensation)
Protection degree
IP20
Max Altitude
4000m
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Lumiax
Magic your solar life!
Qingdao Skywise Technology Co., Ltd.
NO.192, Zhuzhou Road, Qingdao
Tel:0086-532-80776031 Fax: 0086-532-80776757
E-mail: [email protected]
website: www.lumiax.com
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