Epever XTRA N Series User manual

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 controller’s 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

4.1.3Settings ......................................... 25

4.2 Load working modes................................... 26

4.2.1LCD setting ...................................... 26

4.2.2R485 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. 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

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

❶

RTS★port

❺

RS485 communication port

❷

PV Terminals

❻

Terminal protection cover

❸

Battery Terminals

❼

Display units

❹

Load Terminals

❽

Mounting Hole Φ5mm

★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

1.3 Naming Rules of Controller models

EXAMPLE:

1.4Product 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.

LCD：PV 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

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/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 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 (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.

XTRA1206N/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

24V

System

voltage

72 cell Voc＜46V

96 cell Voc＜62V

Thin-Film

Module

Voc＞80V

Max.

Best

Max.

Best

12V

24V

NOTE: The above parameter values are calculated under standard test conditions

(STC (Standard Test Condition)：Irradiance 1000W/m2，Module Temperature 25℃，

Air Mass1.5.)

XTRA1210/2210/3210/4210N:

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

24V

System

voltage

72 cell Voc＜46V

96 cell Voc＜62V

Thin-Film

Module

Voc＞80V

Max.

Best

Max.

Best

12V

24V

NOTE: The above parameter values are calculated under standard test conditions

(STC (Standard Test Condition)：Irradiance 1000W/m2，Module Temperature 25℃，

Air Mass1.5.)

XTRA3215/4215N:

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

24V

System

voltage

72 cell Voc＜46V

96 cell Voc＜62V

Thin-Film

Module

Voc＞80V

Max.

Best

Max.

Best

12V

24V

NOTE: The above parameter values are calculated under standard test conditions

(STC (Standard Test Condition)：Irradiance 1000W/m2，Module Temperature 25℃，

Air Mass1.5.)

XTRA3415/4415N:

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

24V

48V

System

voltage

72 cell Voc＜46V

96 cell Voc＜62V

Thin-Film

Module

Voc＞80V

Max.

Best

Max.

Best

12V

24V

48V

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 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 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(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

46V①

60V②

XTRA2206N

20A

260W/12V

520W/24V

390W/12V

780W/24V

XTRA1210N

10A

130W/12V

260W/24V

195W/12V

390W/24V

92V①

100V②

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

138V①

150V②

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

①At 25℃environment temperature

②At minimum operating environment temperature

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