Epever TRIRON1206N User manual

MPPT Solar Charge Controller
User Manual
Models:
TRIRON1206N/TRIRON1210N
TRIRON2206N/TRIRON2210N
TRIRON3210N/TRIRON3215N
TRIRON4210N/TRIRON4215N

Important Safety Instructions
Please save this manual for future review.
This manual contains safety, installation and operation for Maximum Power Point Tracking (MPPT)
TRIRON series 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. Prevent exposure to the elements and do not allow water to
enter the controller.
Install the controller in a well ventilated -place. The controller’s heat sink may become very hot
during operation.
It is suggested to install 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 Module Types................................................................................................. 3
1.4 Naming rules.................................................................................................. 6
2 Installation........................................................................................7
2.1 Attentions....................................................................................................... 7
2.2 PV Array Requirements.................................................................................. 7
2.3 Wire Size...................................................................................................... 11
2.4 Mounting...................................................................................................... 12
3 Modules installation ......................................................................15
4 Module Introduction ......................................................................17
4.1 Display Module............................................................................................. 17
4.1.1 Display Basic1 (DB1).................................................................................................... 17
4.1.2 Display Standard1 (DS1) .............................................................................................. 18
4.1.3 Display Standard 2 (DS2) ............................................................................................. 22
4.2 Interface Modules......................................................................................... 27
4.2.1 Interface type ................................................................................................................ 27
4.2.2 Double USB (USB1)...................................................................................................... 27
4.2.3 USB COM Slave (UCS) ................................................................................................ 27
4.2.4 Relay COM Master (RCM connect the our company of inverter only).......................... 28
4.2.5 Relay COM Slave (RCS connect the accessories)....................................................... 29
5 Parameters Setting........................................................................30
5.1 Battery parameters setting............................................................................ 30
5.1.1 Supported battery types................................................................................................ 30

5.1.2 Local setting.................................................................................................................. 30
5.1.3 Remote Setting ............................................................................................................. 33
5.2 Load working modes .................................................................................... 36
5.2.1 LCD setting ................................................................................................................... 36
5.2.2 RS485 communication setting ...................................................................................... 37
6 Others.............................................................................................39
6.1 Protection..................................................................................................... 39
6.2 Troubleshooting............................................................................................ 40
6.3 Maintenance................................................................................................. 43
7 Technical Specifications...............................................................44
Annex I Conversion Efficiency Curves ...........................................47

1
1 General Information
1.1 Overview
The TRIRON series controllers are modular-designed products based on six MPPT solar controller
models. The main unit(Power Module)(TRIRON****N) is a solar controller which can be integrated
with different display and interface modules to meet a variety of functional requirements. The
TRIRON series controllers can automatically identify and load the drivers of various modules.
There are three display modules (Basic 1(DB1), Standard1(DS1) and Stardard2(DS2)) and four
interface modules (USB COM Slave(UCS), Relay COM Slave(RCS), Relay COM Master(RCM)
and Dual USB1(USB1)). Users can choose any combination of these modules according to their
needs.
With the advanced MPPT control algorithm, TRIRON series controllers can minimize the maximum
power point loss rate and loss time, quickly track the maximum power point of the PV array and
obtain the maximum energy from solar modules under any conditions; and can increase the ratio of
energy utilization in the solar system by 20%-30% compared with a PWM charging method. With
the adaptive three-stage charging mode based on a digital control circuit, TRIRON series
controllers can effectively prolong the lifecycle of batteries, significantly improve the system
performance and support all-around electronic protection functions, including overcharging and
over-discharging protection to minimize damages to components of the system caused by incorrect
installation or system failure at the utmost, and effectively ensure safer and more reliable operation
of the solar power supply system for a longer service time. This modular solar controller can be
widely used for different applications, e.g., communication base stations, household systems,
street lighting systems and field monitoring, etc.
Features：
Identify and load the drivers of various modules automatically
Modular design for easy combination and replacement
Advanced MPPT control algorithm to minimize the MPP loss rate and loss time
Advanced MPPT technology, with efficiency no less than 99.5%.
Maximum DC/DC conversion efficiency of 98%
Ultra-fast tracking speed and guaranteed tracking efficiency.
Automatic limitation of the charging power and current
Wide MPP operating voltage range.
Multiple load work modes
Support the lead-acid and lithium batteries; voltage parameters can be set on the controller

2
Programmable temperature compensation
Real-time energy statistics function.
Overheating power reduction function
LCD and indicators to display operating data and status of the system
User-friendly buttons for comfortable and convenient operation
Master and slave RS485 communication modules design, reading the load or inverter
operating data
Control the inverter switch through the relay interface
Provide 5VDC power through the dual USB output interface to charge electronic devices
For the BCV, FCV, LVD, and LVR, users can modify them on the local controller when the
battery type is "USE."
1.2 Characteristics
①
Mounting Hole Φ5mm
⑤
PV Terminals
②
Display Module
⑥
Battery Terminals
③
Interface Module
⑦
Load Terminals
④
RTS※Interface
※If the temperature sensor is short-circuited or damaged, the controller will charge
or discharge at the default temperature setting of 25 ºC.
Figure 1 Product Characteristics
①
②
③
④
⑤
⑥
⑦
①

3
1.3 Module Types
1-Power Modules
The Power Modules control PV battery charging & load discharging without any without any display or interface modules installed
–they can operate on their own. If a display or interface module is installed, it will be powered by the Power module and the
appropriate module driver will be loaded.
NOTE: The power module can be operated independently without any other modules.
Model
System
voltage
Max. PV open
circuit voltage
Rated charge/discharge
current
Picture
TRIRON1206N
12/24VDC
60V
10A
TRIRON2206N
12/24VDC
60V
20A
TRIRON1210N
12/24VDC
100V
10A
TRIRON2210N
12/24VDC
100V
20A
TRIRON3210N
12/24VDC
100V
30A
TRIRON4210N
12/24VDC
100V
40A
TRIRON3215N
12/24VDC
150V
30A
TRIRON4215N
12/24VDC
150V
40A
2-Display Modules
Module
Description
Picture
Display
Basic1
DB1
LED Indicators: PV & battery working status
Button: When the working mode is Manual Control, the load is ON/OFF via the
button.

4
Display
Standard 1
DS1
LED Indicators: PV & load working status
Buttons: View or set the parameters
LCD：PV display:voltage/current /generated energy
Battery display: voltage/current/temperature
Load:
Display current/load working mode when the controller communicates with the PC
or APP.
Display voltage/current/ power consumption when the controller communicates with
the inverter.
Display
Standard 2
DS2
Indicators: PV & battery & load working status
Buttons: View or set the parameters
LCD: PV display voltage/current /generated energy/Power
Battery display voltage/ current/temperature/capacity
Load:
Display voltage/ current/ power/ load working mode when the controller
communicates with the PC or APP.
Display voltage/current/power power consumption when the controller
communicates with the inverter.
No Display
Cover
DCV
No indicator or display

5
Interface Modules
Module
Function
Picture
USB COM
Slave
UCS
RS485 interface：
Connect to PC or phone.
View or change the controller parameters.
USB interface：
Supplies 5VDC for electronic equipment.
NOTE: USB interface is output when the load is ON.
Relay COM
Master
RCM
RS485 interface：
Connect to inverter.
View the inverter parameters via the LCD.
Relay interface：
Remotely control the inverter ON/OFF.
NOTE: The module can’t connect the accessories.
Accessory: 3.81-2P terminal
Relay COM
Slave
RCS
RS485 interface：
Connect to PC or phone.
View or change the controller parameters.
Relay interface：
Remotely control the inverter ON/OFF.
NOTE: The module can connect the accessories.
Accessory: 3.81-2P terminal
Double USB
USB1
USB interface：
Supplies 5VDC for electronic equipment.
NOTE: USB interface is output when the load is ON.

6
No COM
Cover
CCV
No interface
CAUTION
The controller must be powered off for 1 minute when user replace the display modules or interface modules.
1.4 Naming rules

7
2 Installation
2.1 Attentions
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.
Lead-acid battery and lithium battery are recommended, other kinds please refer to the battery
manufacturer.
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/mm2or 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 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 below table is for reference only.

8
TRIRON1206N/2206N:
System
voltage
36 cell
Voc＜23V
48 cell Voc
＜31V
54 cell
Voc＜34V
60 cell
Voc＜38V
Max.
Best
Max.
Best
Max.
Best
Max.
Best
12V
2
2
1
1
1
1
1
1
24V
2
2
-
-
-
-
-
-
System
voltage
72 cell Voc＜46V
96 cell Voc＜62V
Thin-Film Module
Voc＞80V
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/m2，Module Temperature 25℃，Air Mass1.5.)
TRIRON1210N/2210N/3210N/4210N:
System
voltage
36 cell
Voc＜23V
48 cell
Voc＜31V
54 cell
Voc＜34V
60 cell
Voc＜38V
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 Voc＜46V
96 cell Voc＜62V
Thin-Film Module
Voc＞80V
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/m2，Module Temperature 25℃，Air Mass1.5.)
TRIRON3215/4215N:
System
voltage
36cell
Voc＜23V
48cell
Voc＜31V
54cell
Voc＜34V
60cell
Voc＜38V
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

9
System
voltage
72cell Voc＜46V
96cell Voc＜62V
Thin-Film Module
Voc＞80V
Max.
Best
Max.
Best
12V
2
1
1
1
1
24V
3
2
2
1
1
NOTE: The above parameter values are calculated under standard test conditions (STC (Standard
Test Condition)：Irradiance 1000W/m2，Module Temperature 25℃，Air Mass1.5.)
(2) Maximum PV array 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. 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 module is greater than the rated charging power, and
the maximum open-circuit voltage of PV array is more than
60V(TRIRON**06N)/100V(TRIRON**10N)/150V(TRIRON**15N) (at the lowest
environmental temperature), the controller may be damaged.
Condition 3:
Actual charging power of PV array＞Rated charging power of controller
Condition 4:
Actual charging current of PV array＞Rated charging current of controller
When the controller operates under “Condition 3”or“Condition 4”，it 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(TRIRON**06N)/100V(TRIRON**10N)/150V(TRIRON**15N) (at the lowest
environmental temperature), the controller may be damaged.

10
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 1.5 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 increase 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
TRIRON1206N
10A
130W/12V
260W/24V
195W/12V
390W/24V
46V①
60V②
TRIRON2206N
20A
260W/12V
520W/24V
390W/12V
780W/24V
TRIRON1210N
10A
130W/12V
260W/24V
195W/12V
390W/24V
92V①
100V②
TRIRON2210N
20A
260W/12V
520W/24V
390W/12V
780W/24V
TRIRON3210N
30A
390W/12V
780W/24V
585W/12V
1170W/24V
TRIRON4210N
40A
520W/12V
1040W/24V
780W/12V
1560W/24V
TRIRON3215N
30A
390W/12V
780W/24V
585W/12V
1170W/24V
138V①
150V②
TRIRON4215N
40A
520W/12V
1040W/24V
780W/12V
1560W/24V
①At 25℃environment temperature
②At minimum operating environment temperature
WARNING
The controller may be damaged when the maximum PV open circuit
voltage(Voc) exceeds 60V(TRIRON**06N), 100V(TRIRON**10N) or 150V
(TRIRON**15N) at minimum operating environment temperature.

11
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 module’s Isc. The
Isc of the PV array must not exceed the controller’s 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＊
TRIRON1206N
TRIRON1210N
10A
4mm2/12AWG
TRIRON2206N
TRIRON2210N
20A
6mm2/10AWG
TRIRON3210N
TRIRON3215N
30A
10mm2/8AWG
TRIRON4210N
TRIRON4215N
40A
16mm2/6AWG
＊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 (TRIRON**06N), 92V (TRIRON**10N) or 92V
(TRIRON**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
TRIRON1206N
TRIRON1210N
10A
10A
4mm2/12AWG
4mm2/12AWG

12
TRIRON2206N
TRIRON2210N
20A
20A
6mm2/10AWG
6mm2/10AWG
TRIRON3210N
TRIRON3215N
30A
30A
10mm2/8AWG
10mm2/8AWG
TRIRON4210N
TRIRON4215N
40A
40A
16mm2/6AWG
16mm2/6AWG
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.
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.
Risk of electric shock! When wiring the solar modules, the PV array can
produce open circuit voltages in excess of 100V when in sunlight.
CAUTION
The 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:
Figure2-1 Mounting

13
Step 1: Determination of Installation Location and Heat-dissipation Space
Figure 2-2 Schematic of wiring diagram
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 2：Connect the system in the order of ❶battery ❷load ❸PV array in
accordance with Figure 2-2,”Schematic Wiring Diagram” and 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.
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.
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 3：Grounding
As the TRIRON series is a common negative controller, the negative poles of the PV array, battery
and load can be grounded together.

14
CAUTION
The controller can also be used in a common positive system. In this case, the
negative poles of the controller, PV and load can’t be grounded together, but
only one of them can be grounded.
Step 4：Connect accessories
Connect the remote temperature sensor cable (model: RTS300R47K3.81A)
Connect one end of the remote temperature sensor cable
to the interface ③and 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 3.2 “Setting and Operation of Controller” .
CAUTION
The RS-485 port is not SELV circuit, it must have isolation between the port and
the place where the end user can access directly.
Step 5：Powered 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 4.2 “Troubleshooting”.

15
3 Modules installation

16