XTRA N Series
——MPPT Solar Charge Controller
User Manual
Models:
XTRA1206N/XTRA2206N
XTRA1210N/XTRA2210N
XTRA3210N/XTRA4210N
XTRA3215N/XTRA4215N
XTRA3415N/XTRA4415N
Important Safety Instructions
Please keep this manual for future review.
This manual contains all instructions of safety, installation and operation for XTRA N
series Maximum Power Point Tracking (MPPT) controller ("the controller" as referred
to in this manual).
General Safety Information
Read carefully all the instructions and warnings in the manual before installation.
No user serviceable components inside the controller. DO NOT disassemble or
attempt to repair the controller.
Mount the controller indoors. Avoid exposure the components and do not allow
water to enter the controller.
Install the controller in a well ventilated place. The controllers heat sink may
become very hot during operation.
Suggest installing appropriate external fuses/breakers.
Make sure to switch off all PV array connections and the battery fuse/breakers
before controller installation and adjustment.
Power connections must remain tight to avoid excessive heating from loose
connection.
CONTENTS
1. General Information ........................................................................ 1
1.1 Overview .............................................. 1
1.2 Characteristics ......................................... 2
1.3 Naming Rules of Controller models ....................... 3
1.4 Product Classification ................................... 3
2. Installation Instructions ................................................................. 4
2.1 General Installation Notes ............................... 4
2.2 PV Array Requirements ................................. 4
2.3 Wire Size ............................................. 8
2.4 Mounting .............................................. 9
3. Display units ................................................................................. 12
3.1 Basic Display unit(XDB1) ............................... 12
3.2 Standard Display unit (XDS1) ........................... 13
3.3 Adanced Display unit (XDS2) ........................... 17
4. Control Parameters Setting ......................................................... 23
4.1 Battery types ......................................... 23
4.1.1 Support battery types ............................. 23
4.1.2 Battery Voltage Control Parameters ................. 23
4.1.3 Settings ......................................... 25
4.2 Load working modes ................................... 26
4.2.1 LCD setting ...................................... 26
4.2.2 R485 communication setting ....................... 27
4.3 Accessories (optional) ................................. 30
5. Protections, Troubleshooting and Maintenance ........................ 32
5.1 Protection ............................................ 32
5.2 Troubleshooting ....................................... 33
5.3 Maintenance ......................................... 34
6. Technical Specifications .............................................................. 36
Annex I Conversion Efficiency Curves ........................................... 39
Annex II Mechanical Dimension Diagram ....................................... 51
1
1. General Information
1.1 Overview
XTRA N series controller which can carry different display units(XDB1/XDS1/XDS2)
adopt the advanced MPPT control algorithm, it can minimize the maximum power
point loss rate and loss time, quickly track the maximum power point(MPP) of the PV
array and obtain the maximum energy from solar array under any conditions; and it
can increase the ratio of energy utilization in the solar system by 20%-30% compared
with PWM charging method.
Limiting the charging power & current and reducing charging power functions ensure
the system stable with over PV modules in high temperature environment. IP32
Ingress protection and isolated RS485 design further improve the controller’s
reliability and meet the different application requirements.
XTRA N series controller owns self-adaptive three-stage charging mode based on
digital control circuit, which can effectively prolong the lifespan of battery and
significantly improve the system performance. It also has comprehensive electronic
protection for overcharge, overdischarge, PV & battery reverse polarity etc, to ensure
the solar system more reliable and more durable. This controller can be widely used
for RV, household system, field monitoring and many other applications.
Features
CE certification(LVD EN/IEC62109,EMC EN61000-6-1/3)
100% charging and discharging in working environment temperature range
Optional LCD display units (XDB1/XDS1/XDS2)
High quality and low failure rate components of ST or IR to ensure service life
Advanced MPPT technology & ultra-fast tracking speed guarantee tracking
efficiency up to 99.5%
Maximum DC/DC transfer efficiency is as high as 98.3%
, full load efficiency is up
to 97.3%
Advanced MPPT control algorithm to minimize the MPP lost rate and lost time
Accurate recognizing and tracking of multi-peaks maximum power point
Wide MPP operating voltage range
Support the lead-acid and lithium batteries, programmable temperature compensation
Limit charging power & current over rated value
Real-time energy statistics function
Power reduction automatically over temperature value
Multiple load work modes
Comprehensive electronic protection
Isolated RS485 with 5V/200mA protected output for no power devices, with
2
Modbus protocol
Support monitoring and setting the parameters via APP or PC software
IP32
Ingress protection
XTRA3415N@48V system
3-protection against solid objects: protected against solids objects over
2.5mm.
2-protection against liquids: protected against direct sprays up to 15°from the
vertical.
1.2 Characteristics
RTS
port
PV Terminals
Battery Terminals
Load Terminals
If the temperature sensor is short circuit or damaged, the controller will
charge or discharge according the voltage setting point at the default
temperature setting of 25 ºC(no temperature compensation).
Figure 1 Product Characteristics
3
1.3 Naming Rules of Controller models
EXAMPLE:
1.4 Product Classification
Classify
Model
Picture
Display
Basics
XTRA****N-XDB1
LED Indicators: PV & battery
working status
Button:
In manual work mode, it switch
ON/OFF the load by press the
button.
Clear the error information.
Standard
XTRA****N-XDS1
LED Indicators: PV & load working
status
Buttons: View or set the parameters
or clear the error information.
LCDPV display: voltage/current
/generated energy
Battery display:
voltage/current/temperature
Load display:
current/consumed energy/load working
mode
Advanced
XTRA****N-XDS2
LED Indicators: PV & battery & load
working status
Buttons: View or set the parameters
or clear the error information.
LCD: PV display: voltage/current
/generated energy/power
Battery display: voltage/current/
temperature/capacity
Load display: voltage/current/power
/consumed energy/load working mode
XTRA 1 2 10 N - XDS2
Display Unit(XDB1/XDS1/XDS2)
Product Series
Charge & discharge current 1-10A;2-20A;3-30A;4-40A
System Voltage 1-12VDC; 2-12/24VDC
Max. PV open circuit voltage 10-100V;15-150V
Common Negative System
4
2. Installation Instructions
2.1 General Installation Notes
Please read the entire installation instructions to get familiar with the installation
steps before installation.
Be very careful when installing the batteries, especially flooded lead-acid battery.
Please wear eye protection, and have fresh water available to wash and clean any
contact with battery acid.
Keep the battery away from any metal objects, which may cause short circuit of the
battery.
Explosive battery gases may come out from the battery during charging, so make
sure ventilation condition is good.
Ventilation is highly recommended if mounted in an enclosure. Never install the
controller in a sealed enclosure with flooded batteries! Battery fumes from vented
batteries will corrode and destroy the controller circuits.
Loose power connections and corroded wires may result in high heat that can melt
wire insulation, burn surrounding materials, or even cause fire. Ensure tight
connections and use cable clamps to secure cables and prevent them from swaying
in mobile applications.
The controller can work with lead-acid battery and lithium battery within its control
scope.
Battery connection may be wired to one battery or a bank of batteries. The following
instructions refer to a singular battery, but it is implied that the battery connection
can be made to either one battery or a group of batteries in a battery bank.
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).
Select the system cables according to 5A/mm
2
or less current density in accordance
with Article 690 of the National Electrical Code, NFPA 70.
2.2 PV Array Requirements
(1) Serial connection (string) of PV modules
As the core component of solar 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 (V
oc
) and the maximum power point voltage (V
Mpp
) of the
MPPT controller, the series number of different types PV modules can be calculated.
The below table is for reference only.
5
XTRA1206N/2206N:
System
voltage
36 cell
Voc23V
48 cell
Voc31V
54 cell
Voc34V
60 cell
Voc38V
Max.
Best
Max.
Best
Max.
Best
Max.
Best
12V
2
2
1
1
1
1
1
1
24V
2
2
-
-
-
-
-
-
System
voltage
72 cell Voc46V
96 cell Voc62V
Thin-Film
Module
Voc80V
Max.
Best
Max.
Best
12V
1
1
-
-
-
24V
1
1
-
-
-
NOTE: The above parameter values are calculated under standard test conditions
(STC (Standard Test Condition)Irradiance 1000W/m
2
Module Temperature 25℃,
Air Mass1.5.)
XTRA1210/2210/3210/4210N:
System
voltage
36 cell
Voc23V
48 cell
Voc31V
54 cell
Voc34V
60 cell
Voc38V
Max.
Best
Max.
Best
Max.
Best
Max.
Best
12V
4
2
2
1
2
1
2
1
24V
4
3
2
2
2
2
2
2
System
voltage
72 cell Voc46V
96 cell Voc62V
Thin-Film
Module
Voc80V
Max.
Best
Max.
Best
12V
2
1
1
1
1
24V
2
1
1
1
1
NOTE: The above parameter values are calculated under standard test conditions
(STC (Standard Test Condition)Irradiance 1000W/m
2
Module Temperature 25℃,
Air Mass1.5.)
XTRA3215/4215N:
System
voltage
36 cell
Voc23V
48 cell
Voc31V
54 cell
Voc34V
60 cell
Voc38V
Max.
Best
Max.
Best
Max.
Best
Max.
Best
12V
4
2
2
1
2
1
2
1
24V
6
3
4
2
4
2
3
2
System
voltage
72 cell Voc46V
96 cell Voc62V
Thin-Film
Module
Voc80V
Max.
Best
Max.
Best
12V
2
1
1
1
1
24V
3
2
2
1
1
6
NOTE: The above parameter values are calculated under standard test conditions
(STC (Standard Test Condition)Irradiance 1000W/m
2
Module Temperature 25℃,
Air Mass1.5.)
XTRA3415/4415N:
System
voltage
36 cell
Voc23V
48 cell
Voc31V
54 cell
Voc34V
60 cell
Voc38V
Max.
Best
Max.
Best
Max.
Best
Max.
Best
12V
4
2
2
1
2
1
2
1
24V
6
3
4
2
4
2
3
2
48V
6
5
4
3
4
3
3
3
System
voltage
72 cell Voc46V
96 cell Voc62V
Thin-Film
Module
Voc80V
Max.
Best
Max.
Best
12V
2
1
1
1
1
24V
3
2
2
1
1
48V
3
2
2
2
1
NOTE: The above parameter values are calculated under standard test conditions
(STC (Standard Test Condition)Irradiance 1000W/m
2
Module Temperature 25℃,
Air Mass1.5.)
(2) Maximum PV array power
The MPPT controller has the function of charging 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 range, 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. The actual operation of PV array is as follows:
Condition 1:
Actual charging power of PV array Rated charging power of controller
Condition 2:
Actual charging current of PV array Rated charging current of controller
When the controller operates under Condition 1”or“Condition 2, it will carry out the
charging as per the actual current or power; at this time, the controller can work at the
maximum power point of PV array.
WARNING: When the power of PV is not greater than the rated charging
power, but the maximum open-circuit voltage of PV array is more than
60V(XTRA**06N)/100V(XTRA**10N)/150V(XTRA**15N) (at the lowest
environmental temperature), the controller may be damaged.
Condition 3:
Actual charging power of PV arrayRated charging power of controller
Condition 4:
Actual charging current of PV arrayRated charging current of controller
7
When the controller operates under Condition 3”or“Condition 4it will carry out the
charging as per the rated current or power.
WARNING: When the power of PV module is greater than the rated
charging power, and the maximum open-circuit voltage of PV array is more
than 60V(XTRA**06N)/100V(XTRA**10N)/150V(XTRA**15N) (at the
lowest environmental temperature), the controller may be damaged.
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 be not greater than 1.5
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 make the probability of damage to the
controller rise. Therefore, it is very important to configure the system reasonably. For
the recommended maximum power of PV array for this controller, please refer to the
table below:
Model
Rated Charge
Current
Rated Charge
Power
Max. PV Array
Power
Max. PV open
circuit voltage
XTRA1206N
10A
130W/12V
260W/24V
195W/12V
390W/24V
46V
60V
XTRA2206N
20A
260W/12V
520W/24V
390W/12V
780W/24V
XTRA1210N
10A
130W/12V
260W/24V
195W/12V
390W/24V
92V
100V
XTRA2210N
20A
260W/12V
520W/24V
390W/12V
780W/24V
XTRA3210N
30A
390W/12V
780W/24V
580W/12V
1170W/24V
XTRA4210N
40A
520W/12V
1040W/24V
780W/12V
1560W/24V
XTRA3215N
30A
390W/12V
780W/24V
580W/12V
1170W/24V
138V
150V
XTRA4215N
40A
520W/12V
1040W/24V
780W/12V
1560W/24V
XTRA3415N
30A
390W/12V
780W/24V
1170W/36V
1560W/48V
580W/12V
1170W/24V
1755W/36V
2340W/48V
XTRA4415N
40A
520W/12V
1040W/24V
1560W/36V
2080W/48V
780W/12V
1560W/24V
2340W/36V
3120W/48V
At 25 environment temperature
At minimum operating environment temperature
8
2.3 Wire Size
The wiring and installation methods must conform to all national and local electrical
code requirements.
PV Wire Size
Since PV array output can vary due to the PV module size, connection method or
sunlight angle, the minimum wire size can be calculated by the Isc
of PV array.
Please refer to the value of Isc in the PV module specification. When PV modules
connect in series, the Isc is equal to a PV modules Isc. When PV modules connect in
parallel, the Isc is equal to the sum of the PV modulesIsc. The Isc of the PV array
must not exceed the controllers maximum PV input current. Please refer to the table
as below:
NOTE: All PV modules in a given array are assumed to be identical.
Isc=short circuit current(amps) Voc=open circuit voltage.
Model
Max. PV input current
Max. PV wire size
XTRA1206N
XTRA1210N
10A
4mm
2
/12AWG
XTRA2206N
XTRA2210N
20A
6mm
2
/10AWG
XTRA3210N
XTRA3215N
XTRA3415N
30A
10mm
2
/8AWG
XTRA4210N
XTRA4215N
XTRA4415N
40A
16mm
2
/6AWG
These are the maximum wire sizes that will fit the controller terminals.
CAUTION: When the PV modules connect in series, the open circuit
voltage of the PV array must not exceed 46V (XTRA**06N), 92V
(XTRA**10N) , 138V (XTRA**15N) at 25 environment temperature.
Battery and Load Wire Size
The battery and load wire size must conform to the rated current, the reference size
as below:
Model
Rated
charge
current
Rated
discharge
current
Battery wire
size
Load wire
size
XTRA1206N
XTRA1210N
10A
10A
4mm
2
/12AWG
4mm
2
/12AWG
XTRA2206N
XTRA2210N
20A
20A
6mm
2
/10AWG
6mm
2
/10AWG
XTRA3210N
XTRA3215N
XTRA3415N
30A
30A
10mm
2
/8AWG
10mm
2
/8AWG
9
XTRA4210N
XTRA4215N
XTRA4415N
40A
40A
16mm
2
/6AWG
16mm
2
/6AWG
CAUTION: The wire size is only for reference. If there is a long distance
between the PV array and the controller or between the controller and the
battery, larger wires can be used to reduce the voltage drop and improve
performance.
CAUTION: For the battery, the recommended wire will be selected
according to the conditions that its terminals are not connected to any
additional inverter.
2.4 Mounting
WARNING: Risk of explosion! Never install the controller in a sealed enclose
with flooded batteries! Do not install in a confined area where battery gas can
accumulate.
WARNING: Risk of electric shock! When wiring the solar modules, the PV
array can produce a high open circuit voltage, so turn off the breaker before
wiring and be careful when wiring.
CAUTIONThe controller requires at least 150mm of clearance above and
below for proper air flow. Ventilation is highly recommended if mounted in an
enclosure.
Installation Procedure:
Step 1: Determination of Installation Location and Heat-dissipation Space
Figure 2-1 Mounting
10
Determination of installation location: The controller shall be installed in a place with
sufficient air flow through the radiators of the controller and a minimum clearance of
150 mm from the upper and lower edges of the controller to ensure natural thermal
convection. Please see Figure 2-1: Mounting
CAUTION: If the controller is to be installed in an enclosed box, it is
important to ensure reliable heat dissipation through the box.
Step 2Connect the system in the order of battery load PV array in
accordance with Figure 2-2,Schematic Wiring Diagramand disconnect the system in
the reverse order❸❷❶.
CAUTION: While wiring the controller do not close the circuit breaker or
fuse and make sure that the leads of "+" and "-" poles are connected
correctly.
CAUTION: A fuse which current is 1.25 to 2 times the rated current of the
controller, must be installed on the battery side with a distance from the
battery not greater than 150 mm.
CAUTION: If the controller is to be used in an area with frequent lightning
strikes or unattended area, it must install an external surge arrester.
CAUTION: If an inverter is to be connected to the system, connect the
inverter directly to the battery, not to the load side of the controller.
Step 3Grounding
XTRA N series is a common-negative controller, where all the negative terminals of
PV array, battery and load can be grounded simultaneously or any one of them will be
Figure 2-2 Schematic of wiring diagram
11
grounded. However, according to the practical application, all the negative terminals
of PV array, battery and load can also be ungrounded, but the grounding terminal on
its shell 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 shell.
CAUTION: For common-negative system, such as motorhome, it is
recommended to use a common-negative controller; but if in the
common-negative system, some common-positive equipment are used,
and the positive electrode is grounded, the controller may be damaged.
Step 4Connect accessories
Connect the remote temperature sensor cable
Model:RT-MF58R47K3.81A Model:RTS300R47K3.81A
Connect the remote temperature sensor cable to the interface and place the other
end close to the battery.
CAUTION: If the remote temperature sensor is not connected to the
controller,, the default setting for battery charging or discharging
temperature is 25 °C without temperature compensation.
Connect the accessories for RS485 communication
Refer to chaper4 Control Parameters Setting.
Step 5Powered on the controller
Closing the battery fuse will switch on the controller. Then check the status of the
battery indicator (the controller is operating normally when the indicator is lit in green).
Close the fuse and circuit breaker of the load and PV array. Then the system will be
operating in the preprogrammed mode.
CAUTION: If the controller is not operating properly or the battery indicator
on the controller shows an abnormality, please refer to 5.2
“Troubleshooting”.
Temperature Sensor
Remote Temperature Sensor
Cable (Optional)
12
3. Display units
3.1 Basic Display unit(XDB1)
(1)Charging and battery LED indicator
Indicator
Color
Status
Information
Green
On Solid
PV connection normal ,but
low voltage(low irradiance)
from PV, no charging
Green
OFF
No PV voltage(night time) or
PV connection problem
Green
Slowly Flashing(1Hz)
In charging
Green
Fast Flashing (4Hz)
PV Over voltage
Green
On Solid
Normal
Green
Slowly Flashing (1Hz)
Full
Green
Fast Flashing (4Hz)
Over voltage
Orange
On Solid
Under voltage
Red
On Solid
Over discharged
Red
Slowly Flashing(1Hz)
Battery Overheating
Lithium battery Low
temperature
All LED indicators fast flashing at the same time
System voltage error
Controller Overheating
When a lead-acid battery is used, the controller doesnt have the low temperature
protection.
When a lithium battery is used, the system voltage can’t be identified automatically.
13
(2)Battery Capacity Level Indicator
Battery Capacity Level (BCL)
Indicator
Color
Status
Information
○○○
Green
25% Indicator slowly flashing
0< BCL <25%
○○
Green
50% Indicator slowly flashing
25% Indicator on solid
25%≤BCL <50%
●●
Green
75% Indicator slowly flashing
25%,50% Indicators on solid
50%≤BCL <75%
●●●
Green
100% Indicator slowly flashing
25%,50%,75% Indicators on solid
75%≤BCL <100%
●●●●
Green
25%,50%,75%,100%Indicators on solid
100%
Indicator is OFF Indicator is on SolidIndicator is slowly flashing.
Load status
Battery Capacity Level
Green
on solid
The load is ON
Green
OFF
The load is OFF
(3)Button
In the manual mode, it can control On/Off of the load via the button
3.2 Standard Display unit (XDS1)
14
(1)LED indicator
Indicator
Color
Status
Instruction
Green
On Solid
PV connection normal but
low voltage(low irradiance)
from PV, no charging
Green
OFF
No PV voltage(night time) or
PV connection problem
Green
Slowly Flashing(1Hz)
In charging
Green
Fast Flashing (4Hz)
PV Over voltage
Red
On Solid
Load ON
Red
OFF
Load OFF
(2)Button
Mode
Note
Load ON/OFF
In load manual mode, it can turn the load On/Off via the
button.
Clear Fault
Press the button
Browsing Mode
Press the button
Setting Mode
Press the button and hold on 5s to enter the setting mode
Press the button to set the parameters,
Press the button to confirm the setting parameters or no
operation for 10s, it will exit the setting interface automatically.
(3)Interface
15
1) Status Description
Item
Icon
Status
PV array
Day
Night
No charging
Charging
PV Voltage, Current, Generated energy
Battery
Battery capacity, In Charging
Battery Voltage, Current, Temperature
Battery Type
Load
Load ON
Load OFF
Current/Consumed energy/Load mode
2) Browse interface
16
3)Load parameter dispaly
DisplayCurrent/Consumed energy/Load working mode-Timer1/ Load working
mode-Timer2
4)Setting
Clear the generated energy
Operation:
Step 1: Press the button and hold 5s under the PV generated energy
interface and the value will be flashing.
Step 2: Press the button to clear the generated energy.
Switch the battery temperature unit
Press the button and hold 5s under the battery temperature interface.
Battery type
Operation:
Step1: Press the button and hold 5s under the battery voltage interface.
Step2: Press the button when the battery type interface is flashing.
Step3: Press the button to confirm the battery type.
CAUTIONPlease refer to chapter 4.1 for the battery control voltage
setting, when the battery type is User.
Load working mode
17
Operation:
Step1: Press the button and hold 5s under the load mode interface.
Step2: Press the button when the load mode interface is flashing.
Step3: Press the button to confirm the load mode.
NOTEPlease refer to chapter4.2 for the load working modes.
3.3 Adanced Display unit (XDS2)
(1)Indicator
Indicator
Color
Status
Instruction
Green
On Solid
PV connection normal but low
voltage(low irradiance) from
PV, no charging
Green
OFF
No PV voltage(night time) or
PV connection problem
Green
Slowly Flashing(1Hz)
In charging
Green
Fast Flashing(4Hz)
PV Over voltage
Green
On Solid
Normal
Green
Slowly Flashing(1Hz)
Full
Green
Fast Flashing(4Hz)
Over voltage
Orange
On Solid
Under voltage
Red
On Solid
Over discharged
Red
Slowly Flashing(1Hz)
Battery Overheating
Lithium battery Low
temperature
18
Yellow
On Solid
Load ON
Yellow
OFF
Load OFF
PV&BATTLED fast flashing
Controller Overheating
System voltage error
When a lead-acid battery is used, the controller doesnt have the low temperature
protection.
When a lithium battery is used, the system voltage can’t be identified automatically
(2)Button
Press the button
PV browsing interface
Setting data +
Press the button and
hold 5s
Setting the LCD cycle time
Press the button
BATT browsing interface
Cursor displacement during setting
Press the button and
hold 5s
Setting the battery type, battery capacity
level and temperature unit.
Press the button
Controller load browsing interface
Setting data -
Press the button and
hold 5s
Setting the load working mode
Press the button
Enter into setting interface
Setting interface switch to the browsing
interface
Setting parameter as enter button
Press the button
Exit the setting interface
(3)Display
19
Icon
Information
Icon
Information
Icon
Information
Day
Not
charging
Not
discharging
Night
Charging
Discharging
1)PV parameters
DisplayVoltage/Current/Power/Generated Energy
2)Battery parameters
DisplayVoltage/Current/Temperature/Battery capacity level
3)Load parameters
DisplayVoltage/Current/Power/ Consumed energy/Load working mode-Timer1/ Load
working mode-Timer2
(4)Setting parameters
1)Battery type
20
Operation:
Step 1: Press the button for the setting interface.
Step 2: Press the button and hold 5s for the battery type interface.
Step 3: Press the or button to choose the battery type.
Step 4: Press the button to confirm the battery type.
CAUTIONPlease refer to chapter 4.1 for the battery control voltage
setting, when the battery type is User.
2)Battery capacity
Operation:
Step 1: Press the button for the setting interface.
Step 2: Press the button and hold 5s for the battery type interface.
Step 3: Press the button for the battery capacity interface.
Step 4: Press the or button to set the battery capacity.
Step 5: Press the button to confirm the parameters.
User
Gel
Sealed (Default)
Flooded
21
3) Temperature units
Operation:
Step 1: Press the button for the setting interface.
Step 2: Press the button and hold 5s for the battery type interface.
Step 3: Press the button twice for the temperature unit interface.
Step 4: Press the or button to set the temperature units.
Step 5: Press the button to confirm the parameters.
4) LCD cycle time
NOTE: The LCD cycle default time is 2s,the setting time range is 020s.
Operation:
Step 1: Press the button for the setting interface.
Step 2: Press the button and hold 5s for the LCD cycle time interface.
Step 3: Press the or button to set the LCD cycle time.
Step 4: Press the button to confirm the parameters.
22
5) Local load working mode
Operation:
Step 1: Press the button for the setting interface.
Step 2: Press the button and hold 5s for the load working mode interface.
Step 3: Press the or button to set the working mode..
Step 4: Press the button to confirm the parameters.
NOTEPlease refer to chapter 4.2 for the load working mode.
23
4. Control Parameters Setting
4.1 Battery types
4.1.1 Support battery types
Item
Lead-acid battery
Lithium battery
1
Sealed(default)
LiFePO4(4S/12V;8S/24V;16S/48V)
2
Gel
Li(NiCoMn)O
2
(3S/12V;6S/24V;12S/48V)
3
Flooded
User
4
User
——
CAUTION: When the default battery type is selected, the battery
voltage control parameters will be set by default and can’t be
changed. To change these parameters, select "User" battery type.
4.1.2 Battery Voltage Control Parameters
Lead-acid battery parameters
The parameters are in 12V system at 25 ºC, please double the values in 24V
system and quadruple the values in 48V system.
Battery type
Voltage
Sealed
Gel
Flooded
User
Over Voltage Disconnect
Voltage
16.0V
16.0V
16.0V
917V
Charging Limit Voltage
15.0V
15.0V
15.0V
917V
Over Voltage Reconnect
Voltage
15.0V
15.0V
15.0V
917V
Equalize Charging Voltage
14.6V
——
14.8V
917V
Boost Charging Voltage
14.4V
14.2V
14.6V
917V
Float Charging Voltage
13.8V
13.8V
13.8V
917V
Boost Reconnect Charging
Voltage
13.2V
13.2V
13.2V
917V
Low Voltage Reconnect
Voltage
12.6V
12.6V
12.6V
917V
Under Voltage Warning
Reconnect Voltage
12.2V
12.2V
12.2V
917V
Under Voltage Warning
Voltage
12.0V
12.0V
12.0V
917V
Low Voltage Disconnect
Voltage
11.1V
11.1V
11.1V
917V
Discharging Limit Voltage
10.6V
10.6V
10.6V
917V
Equalize Duration
120 min
——
120 min
0180 min
Boost Duration
120 min
120 min
120 min
10180 min
24
The following rules must be observed when modifying the parameter values in User
for lead-acid battery.
. Over Voltage Disconnect Voltage > Charging Limit Voltage ≥ Equalize Charging
Voltage ≥ Boost Charging Voltage ≥ Float Charging Voltage > Boost Reconnect
Charging Voltage.
. Over Voltage Disconnect Voltage > Over Voltage Reconnect Voltage
. Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage ≥ Discharging
Limit Voltage.
. Under Voltage Warning Reconnect Voltage > Under Voltage Warning Voltage
Discharging Limit Voltage.
. Boost Reconnect Charging voltage >Low Voltage Reconnect Voltage.
Lithium battery parameters
The parameters are in 12V system at 25 ºC, please double the values in 24V
system and quadruple the values in 48V system.
Battery type
Voltage
LiFePO4
Li(NiCoMn)O
2
User
Over Voltage Disconnect
Voltage
15.6V
13.5V
917V
Charging Limit Voltage
14.6V
12.6V
917V
Over Voltage Reconnect
Voltage
14.7V
12.7V
917V
Equalize Charging
Voltage
14.5V
12.5V
917V
Boost Charging Voltage
14.5V
12.5V
917V
Float Charging Voltage
13.8V
12.2V
917V
Boost Reconnect
Charging Voltage
13.2V
12.1V
917V
Low Voltage Reconnect
Voltage
12.8V
10.5V
917V
Under Voltage Warning
Reconnect Voltage
12.8V
11.0V
917V
Under Voltage Warning
Voltage
12.0V
10.5V
917V
Low Voltage Disconnect
Voltage
11.1V
9.3V
917V
Discharging Limit Voltage
10.6V
9.3V
917V
The following rules must be observed when modifying the parameter values in User
for lithium battery.
. Over Voltage Disconnect Voltage>Over charging protection voltage(Protection
Circuit Modules(BMS))+0.2V
;
25
. Over Voltage Disconnect Voltage>Over Voltage Reconnect VoltageCharging
Limit Voltage ≥ Equalize Charging VoltageBoost Charging Voltage ≥ Float
Charging Voltage>Boost Reconnect Charging Voltage;
. Low Voltage Reconnect Voltage>Low Voltage Disconnect Voltage Discharging
Limit Voltage;
. Under Voltage Warning Reconnect Voltage>Under Voltage Warning Voltage≥
Discharging Limit Voltage;
. Boost Reconnect Charging voltage> Low Voltage Reconnect Voltage;
. Low Voltage Disconnect Voltage ≥ Over discharging protection voltage
(BMS)+0.2V
.
WARNING: The voltage parameters of lithium battery can be set, but you
must refer to the voltage parameters of lithium battery BMS.
WARNING: The required accuracy of BMS shall be at least 0.2V. If the
deviation is higher than 0.2V, the manufacturer will assume no liability for
any system malfunction caused by this.
4.1.3 Settings
1) PC setting
Connection
Download software
http://www.epever.com/en/index.php/Tecknical/download(PC Software for the Solar
Charge Controller)
2) APP software setting
26
Download software(User for lead-acid battery)
http://www.epever.com/en/index.php/Tecknical/download(Android APP for the
Solar Charge Controller)
Download software(User for lithium battery)
http://www.epever.com/en/index.php/Tecknical/download(Android APP for the
Li-Battery Solar Charge Controller)
4.2 Load working modes
4.2.1 LCD setting
1) XDS1 display and operation
When the LCD shows above interface, operate as following:
Step1: Press the button and hold 5s for the load mode interface.
Step2: Press the button when the load mode interface is flashing.
Step3: Press the button to confirm the load working modes.
2) XDS2 display and operation
When the LCD shows above interface, operate as following:
Step1: Press the button for the setting interface.
27
Step2: Press the button and hold 5s for the load working mode interface.
Step3: Press the or button to set the load working modes.
Step4: Press the button to confirm the parameters.
3) Load working mode
1**
Timer 1
2**
Timer 2
100
Light ON/OFF
2 n
Disabled
101
Load will be on for 1 hour after
sunset
201
Load will be on for 1 hour
before sunrise
102
Load will be on for 2 hours
after sunset
202
Load will be on for 2 hours
before sunrise
103
113
Load will be on for 3 13
hours after sunset
203
213
Load will be on for 3 13
hours before sunrise
114
Load will be on for 14 hours
after sunset
214
Load will be on for 14 hours
before sunrise
115
Load will be on for 15 hours
after sunset
215
Load will be on for 15 hours
before sunrise
116
Test mode
2 n
Disabled
117
Manual mode(Default load
ON)
2 n
Disabled
CAUTION: Please set Light ON/OFF, Test mode and Manual mode via
Timer1. Timer2 will be disabled and display "2 n ".
4.2.2 R485 communication setting
1) Load working mode
Manual Control (default)
Control ON/OFF of the load via the button or remote commands (e.g., APP or PC
software).
Light ON/OFF
28
Light ON+ Timer
Time Control
Control the load ON/OFF time through setting the real-time clock.
2) Load working mode settings
(1)PC setting
Connection
Download software
http://www.epever.com/en/index.php/Tecknical/download (PC Software for the
Solar Charge Controller)
(2)APP software setting
29
Download software
http://www.epever.com/en/index.php/Tecknical/download (Android APP for the
Solar Charge Controller)
(3)MT50 Setting
CAUTION: For detailed setting methods, please refer to the instructions or
contact after-sales support.
30
4.3 Accessories (optional)
Remote Temperature Sensor
(RTS300R47K3.81A)
Acquisition of battery temperature for undertaking temperature compensation of
control parameters, the standard length of the cable is 3m (length can be
customized). The RTS300R47K3.81A connects to the port (4
th
) on the controller.
NOTE: The temperature sensor short-circuited or damaged, the controller
will be charging or discharging at the default temperature 25 ºC.
USB to RS485 cable
CC-USB-RS485-150U
USB to RS485 converter is used to monitor each controller using Solar Station
PC software. The length of cable is 1.5m. TheCC-USB-RS485-150U connects to
the RS485 Port on the controller.
OTG cable
OTG-12CM
Used to connect the controller with mobile phone and able to achieve real-time
monitoring of the controller and modification of the parameters by using mobile
APP software
Remote Meter
MT50
MT50 can display various operating data and fault info the system. The
information can be displayed on a backlit LCD screen, the buttons are
easy-to-operate, and the numeric display is readable.
NOTE: MT50 don’t support the lithium battery parameters.
WIFI Serial Adapter
eBox-WIFI-01
After the controller is connected with the eBox-WIFI-01 through the standard
Ethernet cable (parallel cable), the operating status and related parameters of
the controller can be monitored by the mobile APP software through WIFI
signals.
RS485 to Bluetooth Adapter
eBox-BLE-01
After the controller is connected with the eBox-BLE-01 through the standard
Ethernet cable (parallel cable), the operating status and related parameters of
the controller can be monitored by the mobile APP software through Bluetooth
signals.
Logger
eLOG01
After the controller is connected with the eLOG-01 through the RS485
communication cable, it can record the operating data of the controller or monitor
the real-time operating status of the controller via PC software.
NOTE: For setting and operation of accessory, please refer to accessorys user manual.
31
32
5. Protections, Troubleshooting and Maintenance
5.1 Protection
PV Over
Current/power
When the charging current or power of the PV array exceeds the controllers rated current or power, it will be charge at the rated
current or power.
NOTE: When the PV modules are in series, ensure that the open-circuit voltage of the PV array does not exceed the "maximum PV open-circuit
voltage" rating. Otherwise the controller may be damaged.
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.
NOTE: If the PV array is reverse connected to the controller,1.5 times rated controller power(watts)from the PV array, will damage the controller.
Night Reverse Charging
Prevents the battery from discharging to the PV module at night.
Battery Reverse Polarity
Fully protected against battery reverse polarity; no damage will occur to the battery. Correct the miswire to resume normal operation.
NOTE: Limited to the characteristic of lithium battery, when the PV connection is correct and battery connection reversed, the controller will be
damaged.
Battery Over Voltage
When the battery voltage reaches the over voltage disconnect voltage, it will automatically stop battery charging to prevent battery
damage caused by over-charging.
Battery Over Discharge
When the battery voltage reaches the low voltage disconnect voltage, it will automatically stop battery discharging to prevent battery
damage caused by over-discharging. (Any controller connected loads will be disconnected. Loads directly connected to the battery
will not be affected and may continue to discharge the battery.)
Battery Overheating
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.
Lithium Battery Low
Temperature
When the temperature detected by the optional temperature sensor is lower than the Low Temperature Protection Threshold(LTPT),
the controller will stop charging and discharging automatically. When the detected temperature is higher than the LTPT, the
controller will be working automatically (The LTPT is 0 °C by default and can be set within the range of 10 ~ -40 °C).
Load Short Circuit
When the load is short circuited (The short circuit current is ≥ 4 times the rated controller load current), the controller will
automatically cut off the output. If the load reconnects the output automatically five times (delay of 5s, 10s, 15s, 20s, 25s), it needs to
be cleared by pressing the Load button, restarting the controller or switching from Night to the Day (nighttime > 3 hours).
Load Overload
When the load is overloading (The overload current is 1.05 times the rated load current), the controller will automatically cut off the
output. If the load reconnects automatically five times (delay of 5s, 10s, 15s, 20s, 25s), it needs to be cleared by pressing the Load
button restarting the controller, switching from Night to Day (nighttime > 3 hours).
Controller Overheating
The controller is able to detect the temperature inside the battery. The controller stops working when its temperature exceeds 85 °C
and restart to work when its temperature is below 75 °C.
TVS High Voltage
Transients
The internal circuitry of the controller is designed with Transient Voltage Suppressors (TVS) which can only protect against
high-voltage 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.
33
When the internal temperature is 81, the reduce charging power mode which
reduce the charging power of 5%,10%,20%,40% every increase 1 is turned on. If
the internal temperature is greater than 85, the controller will stop charging. When
the temperature declines to be below 75 ºC, the controller will resume.
For example XTRA4215N 24V system:
5.2 Troubleshooting
Possible reasons
Faults
Troubleshooting
PV array
disconnection
Charging LED indicator off during
daytime when sunshine falls on PV
modules properly
Confirm that PV wire connections
are correct and tight
Battery voltage
is lower than
8V
Wire connection is correct, the
controller is not working.
Please check the voltage of
battery. At least 8V voltage to
activate the controller.
Battery over
voltage
XDB1Charging indicator
Green fast flashing
Check if battery voltage is
higher than OVD(over voltage
disconnect voltage), and
disconnect the PV.
XDS1
XDS2Charging indicator
Green fast flashing
Battery over
discharged
XDB1Battery indicator
Red on solid
When the battery voltage is
restored to or above LVR(low
voltage reconnect voltage), the
load will recover
Battery level shows
full, battery frame
blink, fault icon blink
Battery level shows
full, battery frame
blink, fault icon blink
34
XDS1
XDS2Charging indicator Red on
solid
Battery
Overheating
XDB1Battery indicator
Red slow flashing
The controller will
automatically turn the system
off. When the temperature
declines to be below 55 ºC, the
controller will resume.
XDS1
XDS2Battery indicator
Red slow flashing
Controller
Overheating
XDB1
PV/BATT(orange)/Battery capacity
lever(four) indicator fast flashing
XDS2
PV/BATT indicator fast flashing
When heat sink of controller
exceeds 85, the controller
will automatically cut off input
and output circuit. When the
temperature below 75,the
controller will resume to work.
System voltage
error
Check whether the battery
voltage match with the
controller working voltage.
Please change to a suitable
battery or reset the working
voltage.
Load Overload
1. The load is no output
2.XDS1/XDS2
/
Load and fault icon blink
Please reduce the number
of electric equipments.
Restart the controller.
Wait for one night-day cycle
(night time>3 hours).
Load Short
Circuit
Check carefully loads
connection, clear the fault.
Restart the controller.
Wait for one night-day cycle
(night time>3 hours).
5.3 Maintenance
The following inspections and maintenance tasks are recommended at least two
times per year for best performance.
Make sure controller firmly installed in a clean and dry ambient.
Battery frame blink,
fault icon blink
Battery frame blink,
fault icon blink
Battery level shows
empty, battery frame
blink, fault icon blink
Battery level shows
empty, battery frame
blink, fault icon blink
35
Make sure no block on air-flow around the controller. Clear up any dirt and
fragments on heat sink.
Check all the naked wires to make sure insulation is not damaged for sun
exposure, frictional wear, dryness, insects or rats etc. Repair or replace some
wires if necessary.
Tighten all the terminals. Inspect for loose, broken, or burnt wire connections.
Check and confirm that LED 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.
Clear up dirt, nesting insects and corrosion in time.
Check and confirm that lightning arrester is in good condition. Replace a new
one in time to avoid damaging of the controller and even other equipments.
WARNINGRisk of electric shock!
Make sure that all the power is turned off before above operations,
and then follow the corresponding inspections and operations.
36
6. Technical Specifications
Electrical Parameters
Item
XTRA
1206N
XTRA
2206N
XTRA
1210N
XTRA
2210N
XTRA
3210N
XTRA
4210N
XTRA
3215N
XTRA
4215N
XTRA
3415N
XTRA
4415N
System nominal
voltage
12/24VDC
Auto
12/24/36/48VDC
Auto
Rated charge current
10A
20A
10A
20A
30A
40A
30A
40A
30A
40A
Rated discharge
current
10A
20A
10A
20A
30A
40A
30A
40A
30A
40A
Battery voltage
range
832V
868V
Max. PV open
circuit voltage
60V
46V
100V
92V
150V
138V
MPP voltage range
(Battery voltage +2V)
36V
(Battery voltage +2V)
72V
(Battery voltage +2V)
108V
Max. PV input power
130W/12V
260W/24V
260W/12V
520W/24V
130W/12V
260W/24V
260W/12V
520W/24V
390W/12V
780W/24V
520W/12V
1040W/24V
390W/12V
780W/24V
520W/12V
1040W/24V
390W/12V
780W/24V
1170W/36V
1560W/48V
520W/12V
1040W/24V
1560W/36V
2080W/48V
Max. conversion
efficiency
97.9%
98.3%
98.2%
98.3%
98.6%
98.6%
98%
98.1%
98.3%
98.5%
Full load efficiency
97%
96.7%
96.2%
96.4%
96.6%
96.5%
95.9%
95.6%
97.3%
97.2%
Self-consumption
14mA(12V)
15mA(24V)
35mA(12V)
22mA(24V)
35mA(12V)
22mA(24V)
16mA(36V)
16mA(48V)
Discharge circuit
voltage drop
≤0.23V
Temperature
compensate
coefficient
-3mV//2V (Default)
Grounding
Common negative
37
RS485 interface
5VDC/200mA(RJ45)
LCD backlight time
Default:60S,Range:0~999S(0S:the backlight is ON all the time)
When lithium battery is used, the system voltage can’t be identified automatically.
At minimum operating environment temperature
At 25 environment temperature
When lithium battery is used, the temperature compensate coefficient must be 0,and cant be changed.
Environmental Parameters
Working environment temperature
(100% input and output)
-25℃~+50(LCD)
-30℃~+50(No LCD)
Storage temperature range
-20℃~+70
Relative humidity
≤95%, N.C.
Enclosure
IP32
Pollution degree
PD2
The controller can full load working in the working environment temperature, When the internal temperature reach to 81, the
reducing charging power mode is turned on. Refer to P34.
3-protection against solid objects: protected against solids objects over 2.5mm.
2-protection against liquids: protected against direct sprays up to 15°from the vertical.
Mechanical Parameters
Item
XTRA1206N
XTRA1210N
XTRA2206N
XTRA2210N
XTRA3210N
XTRA3215N
XTRA4210N
XTRA3415N
XTRA4215N
XTRA4415N
Dimension
175×143×48mm
217×158×56.5mm
230×165×6 3mm
255×185×67.8mm
255×187×75.7mm
255×189×83.2mm
Mounting dimension
120×134mm
160×149mm
173×156mm
200×176mm
200×178mm
200×180mm
Mounting hole size
Φ5mm
Terminal
12AWG(4mm
2
)
6AWG(16mm
2
)
6AWG(16mm
2
)
6AWG(16mm
2
)
6AWG(16mm
2
)
6AWG(16mm
2
)
Recommended cable
12AWG(4mm
2
)
10AWG(6mm
2
)
8AWG(10mm
2
)
6AWG(16mm
2
)
8AWG(16mm
2
)
6AWG(16mm
2
)
Weight
0.57kg
0.96kg
1.31kg
1.70kg
2.07kg
2.47kg
Certification
Safety
EN/IEC62109-1
EMC(Emission immunity)
EN61000-6-3/EN61000-6-1
38
FCC
47 CFR Part 15, Subpart B
Performance &function
IEC62509
ROHS
IEC62321-3-1
39
Annex I Conversion Efficiency Curves
Illumination Intensity: 1000W/m
2
Temp: 25ºC
Model: XTRA1206N
1. Solar Module MPP Voltage(17V, 34V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V,45V) / Nominal System Voltage(24V)
40
Model: XTRA1210N
1. Solar Module MPP Voltage(17V, 34V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V,51V,68V) / Nominal System Voltage(24V)
41
Model: XTRA2206N
1. Solar Module MPP Voltage(17V, 34V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V,45V) / Nominal System Voltage(24V)
42
Model: XTRA2210N
1. Solar Module MPP Voltage(17V, 34V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V,51V,68V) / Nominal System Voltage(24V)
43
Model: XTRA3210N
1. Solar Module MPP Voltage(17V, 34V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V,51V,68V) / Nominal System Voltage(24V)
44
Model: XTRA4210N
1. Solar Module MPP Voltage(17V, 34V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V, 51V,68V) / Nominal System Voltage(24V)
45
Model: XTRA3215N
1. Solar Module MPP Voltage(17V, 34V, 68V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V, 68V, 102V) / Nominal System Voltage(24V)
46
Model: XTRA4215N
1. Solar Module MPP Voltage(17V, 34V, 68V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V, 68V, 102V) / Nominal System Voltage(24V)
47
Model: XTRA3415N
1. Solar Module MPP Voltage(17V, 34V, 68V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V, 68V, 102V) / Nominal System Voltage(24V)
48
3. Solar Module MPP Voltage(68V, 102V, 119V) / Nominal System Voltage(36V)
4. Solar Module MPP Voltage(68V, 102V, 119V) / Nominal System Voltage(48V)
49
Model: XTRA4415N
1. Solar Module MPP Voltage(17V, 34V, 68V) / Nominal System Voltage(12V)
2. Solar Module MPP Voltage(34V, 68V, 102V) / Nominal System Voltage(24V)
50
3. Solar Module MPP Voltage(68V, 102V, 119V) / Nominal System Voltage(36V)
4. Solar Module MPP Voltage(68V, 102V, 119V) / Nominal System Voltage(48V)
51
Annex II Mechanical Dimension Diagram
XTRA1206N/1210N (Unit: mm)
52
XTRA2206N/2210N (Unit: mm)
53
XTRA3210N (Unit: mm)
54
XTRA4210/3215N (Unit: mm)
55
XTRA3415/4215NUnitmm
56
XTRA4415NUnitmm
Any changes without prior notice! Version number: 1.3
BEIJING EPSOLAR TECHNOLOGY CO., LTD.
Tel: +86-10-82894112 / 82894962
Fax: +86-10-82894882
Website: http://www.epsolarpv.com/
http://www.epever.com/