eTracer series

P ower P oint T racking

C ontroller

Models

ET2415N ET3415N

ET4415N ET6415N

1.0 Important Safety Information

1

2.0 General Information

2

2.1 Overview

2

2.2 Models & Parameters

4

2.3 Characteristics

5

2.4 Optional Accessories

7

3.0 Installation Instructions

8

3.1 General Installation Notes

8

3.2 Mounting

9

3.3 Wiring

10

4.0 Operation

15

4.1 MPPT Technology

15

4.2 Battery Charging Information

17

4.3 LED Indication

20

4.4 Display & Operation

21

�

Initialization

21

�

Main Menu

21

�

Monitoring

21

�

Control Para

23

�

System Para

26

�

Network Para

27

�

Clock Set

29

�

Log Info

29

�

Modify Psw

30

�

Default Set

31

�

The Others

32

5.0 Networking & communication

33

5.1 Introduction

33

5.2 Setting

34

5.3 Other Introductions

40

6.0 Protections, Troubleshooting & Maintenance

42

6.1 Protections

42

6.2 Troubleshooting

43

6.3 Maintenance

45

7.0 Warranty

46

8.0 Specifications

47

Curves

51

Dimensions

53

1

.0 Important

Save these instructions.

This manual contains important safety, installation and operating instructions for eTracer.

The following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instructions, please take care when meeting these symbols.

o peration of

General Safety Information

·Read all of the instructions and cautions in the manual before beginning installation.

·There are no user serviceable parts inside the eTracer. Do not disassemble or attempt to repair the controller.

·

Mount the eTracer indoors. Prevent exposure to the elements and do not allow water to enter the controller.

·Please install controller in ventilated places, the temperature of heat sink may be quite high when working.

·Install external fuses/breakers as required.

·Disconnect the solar module and fuse/breakers near to battery before installing or adjusting the eTracer.

·Confirm that power connections are tightened to avoid excessive heating from loose

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1

connection.

2

.0 General

Thank you for selecting the eTracer controller. With the features of industrial class product of high efficiency and reliability, the controller is a high-end product based on multiphase synchronous rectification technology. The features are listed below:

·12V/24V/36V/48V auto work

·Excellent EMC design, thermal design and nature air cooling

·The first tracking to the maximum power point of solar modules in 15 seconds or less, tracking efficiency of 99% or higher

·Multiphase synchronous rectification technology impels peak conversion efficiency to 98%

·Multiphase power decentralized control can also make small power charging be high effective, improve the capacity of generating

·High speed and performance of the double processors architecture, improve the response speed and optimize the performance of the system

·Multiphase control technology, optimizes charging current smoothness, reduces ripple, and improves the system generating efficiency

·Humanized browser interface, 128*64 dot-matrix LCD intuitively displays data and state, many button combinations for easy operation, both Chinese and English interface to choose from

·RS232, CAN BUS and Ethernet 3 kinds of communication way to meet different occasions of demand as far as possible

·Sealed, Gel and Flooded battery option

·Three stages of optimizing charging control

·Protection: over heat, over charging, PV short circuit and PV (battery) revered

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2

The controller features the built-in blur intelligent control algorithm that maximizes the energy from the solar module(s) and charge the battery.

The controller charging process has been optimized for long battery life and improved system performance. The comprehensive self-diagnostics and electronic protection functions can prevent damage from installation mistakes or system faults.

Although the controller is very simple to configure and use, please take your time to read the operator's manual and become familiar with the controller. This will help you make full use of all the functions and improve your PV system.

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3

Standard RS232, CAN BUS and ETHERNET communication interface

ET2415N

�

Rated continuous charging current 20A

�

Max. PV input power 1040W

�

12V/24V/36V/48V system voltage auto work*

ET3415N

�


�


�


ET4415N

�


�


�


ET6415N

�


�


�

*

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4

*

Every time start up the controller, system voltage automatically identified, do not need your any operation or setting.

module documentation to determine the highest expected array Voc (open circuit voltage) as defined by the lowest expected ambient temperature for the system location.

C haracteristics

1

3

4

5

6

2

11

12

13

14 15 16

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5

10

----

----

9

8

7

Figure 2-1 Characteristics

1 – Heat

Inductance and MOSFET of heat through aluminum heat sink to dissipate.

Data of displaying interface.

An LED indicator shows battery status.

An LED indicator shows charging or not.

An LED indicator shows controller faults.

Browse or modify all parameters.

Monitor controller by PC or update software.

E thernet

Connect Ethernet, monitor controller remotely by network.

An LED indicator shows solar modules positive and negative reversed.

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6

Connect RTS, Measure battery temperature to make temperature compensation.

1 1

Connect RBVS, Measure battery voltage accurately.

1 2

Communicate with our other CAN BUS devices.

1 3

Connect to solar module(s) positive (+) terminal.

1 4

Connect to solar module(s) negative (-) terminal.

1 5

Connect to battery negative (-) terminal.

1 6

Connect to battery positive (+) terminal.

2.

4 Optional

The digital remote meter displays system operating information, error indications, and self-diagnostics read-out. Information is displayed on a backlit LCD display. The large numerical display and icons are easy to read and large buttons make navigating the meter menus easy. The meter can be flush mounted in a wall or surface mounted using the mounting frame (included). The MT-100 is supplied with 2m of cable and a

MC1.5.3.81-4L port (12 th

) on the controller.

Acquiring of battery temperature for undertaking temperature compensation of control parameters, the standard length of the cable is 2m (can be customized if want longer).

th

) on the controller.

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7

·Read through the entire installation section first before beginning installation.

·Be very careful when working with batteries. Wear eye protection. Have fresh water available to wash and clean any contact with battery acid.

·Uses insulated tools and avoid placing metal objects near the batteries.

·Explosive battery gasses may be present during charging. Be certain there is sufficient ventilation to release the gasses.

·Avoid direct sunlight and do not install in locations where water can enter the controller.

·Loose power connections and/or corroded wires may result in resistive connections that 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.

·Use with Gel, Sealed or Flooded batteries only.

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8

·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 3A/mm

2 or less current density.

Step 1: Choose Mounting Location

Locate the eTracer on a vertical surface protected from direct sun, high temperature, and water.

Step 2: Check for Clearance

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9

Place the eTracer in the location where it will be mounted. Verify that there is sufficient room to run wires and that there is sufficient room above and below the controller for air flow.

At least

150mm

Warm air

At least

150mm

Cool air

Figure 3-1 Mounting and cooling

Step 3: Mark Holes

Use a pencil or pen to mark the four (4) mounting hole locations on the mounting surface.

Step 4: Drill Holes

Remove the controller and drill four sizeable holes in the marked locations.

Step 5: Secure Controller

Place the controller on the surface and align the mounting holes with the drilled holes in step 4. Secure the controller in place using the mounting screws.

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10

NOTE: The

CAUTION: Equipment compensa tion

The included remote temperature sensor TS-R is recommended for effective temperature compensated charging. Connect the TS-R to the MC1.5.3.81-2L

(10 th

) on the controller (see figure 2-1). There is no polarity, so either wire (+ or -) can be connected to either screw terminal. Separate installation instruction is provided inside the TS-R bag. No damage will occur if connect the TS-R to the remote battery voltage sense port, but the connection will not be recognized.

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11

“ + po rt

The voltage at the battery connection on the controller may differ slightly from the voltage directly at the battery bank terminals due to connection and cable resistance.

The remote battery voltage sense connection enables the controller to measure the battery terminal voltage precisely with small gauge wires that carry very little current, and thus have no voltage drop. Connect the remote battery voltage sense wires to the th

) on the controller (see figure 2-1).

Pay attention to “+” and

“-” positions.

A battery voltage sense connection is not required to operate your controller, but it is recommended for best performance.

The voltage sense wires should be cut to length as required to connect the battery to the voltage sense terminal. The wire size can range from 0.25 to 1.0 mm

2

(24 to 16

AWG). The maximum length allowed for each battery voltage sense wire is 30m. A twisted pair cable is recommended but not required.

Be careful to connect the battery positive (+) terminal to the voltage sense positive (+) terminal, the battery negative (-) terminal to the voltage sense negative (-) terminal.

No damage will occur if the polarity is reversed, but the controller cannot read a reversed sense voltage. Connecting the voltage sense wires to the RTS terminals will cause an alarm.

n etwork

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12

Three kinds of communication are provided as RS-232, CAN BUS and Ethernet. You can monitor the controller on your PC or update software through RS-232 connection.

The controller is allowed to communicate with remote meter (MT-100) or our other devices by CAN BUS. The controller also can be monitored via the internet. Refer to section 6.0 for more information about Ethernet.

·

RS-232

The serial RS-232 port is a standard 9-pin (DB9) male connector.

Tighten the screw on both sides of fe male connector in case that the fe male connector loosens or falls off when data transmits. Refer to 9 th port on the controller in the figure 2-1.

·

CAN

If you have purchased CAN BUS equipment, connect it reliably. Refer to 12 th port on the controller in the figure 2-1.

·

Ethernet

The Ethernet port is a standard RJ-45 connector.

Use twisted pair cable and RJ-45 plug. Connect RJ-45 plug to the port carefully to avoid damaging it. Refer to 8 th port on the controller in the figure 2-1.

b efore

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13

·

Battery

Connect a fuse in series in the battery circuit, and select it according to the controller rated current of 1.25 to 2 times. Make it keep OFF state before connection. Connect battery negative (black) to the 15 th port and positive (red) to the 16 th port on the controller in the figure 2-1.

·

S olar

Connecting a breaker in series in the solar circuit is recommended, and select it according to the controller rated current of 1.25 to 2 times. Make it keep OFF state before connection. Connect solar positive (red) to the 13 th port and negative (black) to the 14 th port on the controller in the figure 2-1.

If you have connected the battery and solar according to the above steps, please confirm that there is no loose connections or error connections.

There will be no damage to the controller if battery itself or (and) solar itself connection reverses due to carelessness.

Step 5: Power-Up

·

Confirm that all connections are correct especially the Solar and Battery polarities.

·

Turn the battery disconnect fuse on first. Observe that whether the battery

LED’s indicate a successful start-up, LCD interface initialization correct. (refer to section 4.0)

·

Confirm battery power-up correct and then turn the solar disconnect on. If the solar module(s) is in full sunlight, the controller will begin charging.

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·

If the battery LED error exists or LCD interface alarms, please refer to section

5.0 for troubleshooting.

The eTracer utilizes Maximum Power Point Tracking technology to extract maximum power from the solar module(s). The tracking algorithm is fully automatic and does not require user adjustment. eTracer technology will track the array

maximum power

point voltage (Vmp) as it varies with weather conditions, ensuring that maximum power is harvested from the array through the course of the day.

·

Current Boost

In many cases, eTracer MPPT technology will “boost” the solar charge current. For example, a system may have 8 Amps of solar current flowing into the eTracer and 10

Amps of charge current flowing out to the battery. The eTracer does not create current!

Rest assured that the power into the eTracer is the same as the power out of the eTracer. Since power is the product of voltage and current (Volts×Amps), the

(1) Power Into the eTracer =Power Out of the eTracer

(2) Volts In×Amps In=Volts Out×Amps Out

If the solar module’s 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 maximum power voltage and battery voltage, the greater the current boost. Current boost can be

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15

substantial in systems where the solar array is of a higher nominal voltage than the battery.

·

An Advantage

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 below the module’s Vmp. In a 12V system for example, the battery voltage may range from

11-15Vdc but the module’s Vmp is typically around 16 or 17V.

Figure 4-1 shows a typical current VS. voltage output curve for a nominal 12V off-grid module.

Current VS. Voltage in 12V system

Typical Battery

Voltage Range

Maximum

Power

Point

Output power in 12V system eTracer

Maximum

Power

Point Traditional

Controller

Operating Range

Figure 4-1 Nominal 12V Solar Module I-V curve and output power graph

The array Vmp is the voltage where the product of current and voltage (Amps×Volts) is greatest, which falls on the “knee” of the solar module I-V curve as shown in

Figure4-1. Because Traditional controllers do not operate at the Vmp of the solar modules(s), 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.

eTracer MPPT technology will always operate at the Vmp resulting in less wasted energy compared to traditional controllers.

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·

Conditions

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.

The eTracer has a 4-stage battery charging algorithm for rapid, efficient, and safe battery charging.

Figure 4-2 eTracer charging algorithm

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

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17

powered on, if it detects neither over discharged nor overvoltage, the charging will enter into boost charging stage.

·

Float

After the Boost voltage stage, Tracer 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 Tracer 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.

·

Equalize

Equ alization a ll

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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.

The controller will equalize battery every month 28 th

. It will remain according to the set time when equalization is constant, or it will remain according to the time of inner calculation when equalize charging accomplishes off and on. Equalize charge and boost charge are not carried out constantly in a full charge process to avoid too much gas precipitation or overheating of battery.

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19

Indication

Green ON

Green OFF

Indication

Green ON

Orange ON

Red ON

Red Blink

Indication

Red OFF

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20

System status

Charging

No Charging

Battery status

Normal

UVW

LVD

OVD

System status

Normal

Red Blink Current Err

Over Charging Current

PV OVD

Over Temp

�

Initialization

Welcome!

EPsolar

�

Main Menu

Monitoring

Control Para

System Para

Network Para

When the controller is powered on, the LCD interface displays the information as shown in the picture. It indicates that initialization is normal when the interface goes automatically to the monitoring interface.

There are totally 8 menus available with the controller, as shown in the picture. Press or

↓

, inverse cursor moves among 8 menus. Press or to make modifiable parameter increase or decrease progressively. Press

OK or ESC to select modifying or exiting.

Clock Set

Log Info

Modify Psw

Default Set

Press

↓

to view this interface, or press return to previous interface.

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21

to

�

Monitoring

Batt Volt.

25.3V

Batt Curr.

7.0A

When inverse cursor stays on the

Monitoring

, press OK to enter this interface. Battery real-time voltage and current will be shown in this interface, press

↓

to view next interface, or press to view the last monitoring interface. Press

ESC to return to main menu in any monitoring interface.

Day’s Max.V

28.8V

Day’s Min.V

23.5V

Press

↓

to view this interface. Intraday maximum voltage and minimum voltage will be shown in this interface, press

↓

to view next interface, or press to return to previous interface.

PV Volt.

38.1V

Charge State

Float

Batt SOC

93%

Batt State

Normal

Press

↓

to view this interface. Solar module real-time voltage and charging state (no-charge, equalize, boost, float in 4 states) will be shown in this interface, press

↓


Press

↓

to view this interface. Battery SOC (State of charge) and battery state (Normal, UVW, LVD,

OVD in 4 states) will be shown in this interface, press

↓


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22

Generated Energy

0.0WH/D

PV Power

0.0W

Batt Temp

25.5℃

Coefficient

-5.0mv/℃/2v

Device Temp

25.9℃

2012-1-10 12:12:12

Press

↓

to view this interface. Intraday solar modules generated energy and solar modules real-time power will be shown in this interface, press

↓


Press

↓

to view this interface. Battery temperature

(Default 25.0

℃

without remote temp sensor) and temperature compensation coefficient will be shown in this interface, press

↓

to view next interface, or press

Press

↓

to return to previous interface.

to view this interface. Controller inner temperature (Near heat sink) and real time clock

(Y/M/D H/M/S) will be shown in this interface, press

↓

to view the first monitoring interface, or press to return to previous interface.

�

Control Para

Batt Type

GEL

Batt Rated Volt.

12.0V

Input Psw

000000

In main menu, when inverse cursor stays on the

Control Para

, press

OK to enter this interface.

By pressing

↓

or , you can view all parameters in 9 interfaces but no setting. In any control para interface, not only press

ESC to return to main menu but also press

OK to change parameters.

After pressing the

OK

, a six-digit password must be entered before adjusting parameters. Press

↓

or to move inverse cursor among six numbers of

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23

OK ESC

or to select the set one when inverse cursor stopping. Press or to select modifying parameters or exit input.

Batt Type

GEL

Batt Rated Volt.

12.0V

After correct password input, inverse cursor appears, and you can modify selected para. Press to change it. Press

↓

or or to select to change parameter of other interfaces, press

OK to confirm to save, or press

ESC to exit setting. In left interface, battery type includes GEL, SEALED and FLOODED.

Battery rated voltage is automatically recognized when controller is powered up, just for looking.

System voltage will be shown as 12.0V, 24.0V,

36.0V or 48.0V.

This interface will pop out if you input correct

Tip Message

Modify OK

password and press

OK to save, and the controller will run with new parameters. Otherwise, it will run with default value if illegal parameter is set. You have to look over carefully and repeat setting operation.

﹡Set control voltage point, please in strict accordance with: Over Volt. Disc＞Charge

Limit＞Equalize Charge＞Boost Charge＞Float Charge＞Boost Volt. Rect or

Under Volt. Rcvr＞Under Volt. Warn＞Low Volt. Disc＞Discharge Limit, Please refer to chapter 8 Parameters about control voltage table while setting.

Over Volt. Disc

16.0V

Over Volt. Rect

15.0V

Press or to change value. Press

↓

or to move inverse cursor, this interface includes Over

Volt. Disc

(

Over Voltage Disconnect Voltage

)

and

Over Volt. Rect

(

O ver Voltage Reconnect Voltage

).

Parameters will be displayed as corresponding default

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24

Charge Limit

15.5V

Equalize Charge

14.6V

Boost Charge

14.4V

Float Charge

13.8V

Boost Volt. Rect

13.2V

Under Volt.

12.2V

Rcvr

Under Volt. Warn

12.0V

Low Volt. Rect

12.6V

values after correct system voltage identification.

Press or to change value. Press or to move inverse cursor, this interface includes Charge

Limit

(

Charging Limit Voltage

)

and Equalize Charge

(

Equalize Charging Voltage

).

Parameters will be displayed as corresponding default values after correct system voltage identification.

↓


↓

or to move inverse cursor, this interface includes Boost

Charge

(

Boost Charging Voltage

)

and Float Charge

(

Float Charging Voltage

).



↓

or to move inverse cursor, this interface includes Boost

Volt. Rect

(

Boost Voltage Reconnect

)

and Under Volt.

Rcvr

(

Under Voltage Warning Recover Voltage

).



↓

or to move inverse cursor, this interface includes Under

Volt. Warn

(

Under Voltage Warning Voltage

)

and

Low Volt. Rect

(

Low Voltage Reconnect Voltage

).


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25

Low Volt. Disc

11.1V

Discharge Limit

10.8V


↓

or to move inverse cursor, this interface includes Low

Volt. Disc

(

Low Voltage Disconnect Voltage

)

and

Dis

charge Limit

(Dis

charging Limit Voltage

).


Equalize Time

180Min

Boost Time

180Min


↓

to move inverse cursor, this interface includes

Equalize Time and Boost Time

.

or

Temp Coefficient

-5mv/℃/2v

�

System Para

Device ID

M01-0000

Language

英文 en

Input Psw

000000


↓

to move inverse cursor, in this interface, you can adjust temperature compensation coefficient

.

or


System Para

, press


By pressing

↓

or , you can view all parameters in 3 interfaces but no setting. In any system para interface, not only press



After pressing the OK , a six-digit password must be entered before adjusting parameters. Press

↓

or to move inverse cursor among six numbers of the password, and press or to select the set one when inverse cursor stopping. Press OK or ESC

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26

Device ID

M01-0000

Language

英文 en

Tip Message

Modify OK

Backlight Time

20Min

Storage Interval

20Min

Serial Baud Rate

115200 bps

to select modifying parameters or exit input.

After correct password input, inverse cursor appears, and you can modify selected para. Press to change it. Press

↓

or or to select to change parameter of other interfaces, press

OK to confirm to save, or press

ESC to exit setting. In left interface, the eTracer can be recognized by PC or management unit via the four-digit device ID, and user can adjust every digit of it. There are two languages: English and Chinese, and all interfaces’ language will be shown as your selected one.

This interface will pop out if you input correct password and press OK to save, and the controller will run with new parameters.


↓

or to move inverse cursor. In this interface, backlight’s

ON time range is from 1 minute to 30 minutes, the default is 20 minutes, ‘--’ means ON all the time

.

Operational log (battery voltage or current, PV voltage or current, etc) can be automatically saved to the FLASH at each interval time. Setting time is same as backlight time but no ‘--’ setting.


↓

or to move inverse cursor. In this interface, serial baud rate is 115200bps or 9600bps, and the default is

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27

115200bps

.

�

Network Para

Network Type

Manual

Network Psw

000000

Input Psw

000000

Network Type

Manual

Network Psw

000000

Tip Message

Modify OK


Network Para

, press


By pressing

↓

or , you can view all parameters in 5 interfaces but no setting. In any network para interface, not only press



After pressing the

OK


↓

or to move inverse cursor among six numbers of the password, and press or to select the set one when inverse cursor stopping. Press

OK or

ESC to select modifying parameters or exit input.

After correct password input, inverse cursor appears, and you can modify selected para. Press to change it, press

↓

or or to select to change parameter of other interfaces, press OK to confirm to save, or press

ESC to exit setting. 2 kinds of network type are available with left interface, which are automatic distribution and manual distribution, and it is manual distribution by default. Network password is used to login Web monitoring page.

This interface will pop out if you input correct

OK

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28

Network Port

0080

MAC Add.

000000000000

IP Add.

192.168.000.002

Subnet Mask

255.255.255.000

password and press to save, and the controller will run with new parameters.

Press or to change value, press

↓

or to move inverse cursor. Network port (TCP/IP port) usually set for default ‘80’; MAC address set for 12 bits of the hexadecimal encoding (0~F), note that in the same network, each equipment should be set for unique MAC address different from others, otherwise communication error will occur.


↓

or to move inverse cursor. IP address usually set for

‘192.168.000.XXX’; Subnet Mask usually set for default ‘255.255.255.000’.


↓

or to move inverse cursor. Default Gateway usually set for ‘192.168.000.001’.

Default Gateway

192.168.000.001

�

Clock Set

Clock Set

2012Y-03M-05D

13H: 45M: 58S

Input Psw

000000


Clock Set

, press


In left interface, not only press



After pressing the

OK


↓

or to move inverse cursor among six numbers of the password, and press

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29

or to select the set

OK ESC

Clock Set

2012Y-03M-05D

13H: 45M: 58S

one when inverse cursor stopping. Press to select modifying parameters or exit input.

or

After correct password input, inverse cursor appears, and you can adjust time. Press or to change value. Press

↓

or to move inverse cursor. In this interface, user can adjust real-time clock to the local clock that includes year, month, day, hour, minute and second.

This interface will pop out if you press

OK to save, and the controller will run with new parameters.

Tip Message

Modify OK

�

Log Info

Alarm Log Query

From 2012Y01M03D

To 2012Y02M20D

Total: 00073

NO. 00001/00073

Batt UVW /Start

2012-01-10 14:32

Para 11.8V


Log Info

, press

OK to enter this interface or

ESC

.

return to main menu. After pressing

OK again, user can select start-time and end-time to look over warnings at this time period. However, ‘From’ time must be ahead of ‘To’ time; or else, alarm of ‘Para

Error’ will pop out.

After selecting ‘From’ and ‘To’ time, press

OK to enter warning interface when at least one warning event occurs. In this interface, more information is offered: warning event sequence number, warning event (OVD, UVW, LVD, Current Err, Over Current,

Over Temp or PV OVD), start or end, occurrence time and temporal parameter. Press

↓

or to read warning event of the other interfaces. Press

ESC to return to main menu.

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30

OVD: Over Voltage Disconnect Voltage (battery).

UVW: Under Voltage Warning Voltage (battery).

LVD: Low Voltage Disconnect Voltage (battery).

Current Err: The charging current in three paths is unbalanced.

Over Current: The charging current is much more than the rating.

Over Temp: Heat sinks operational temperature is quite high.

PV OVD: Solar Voltage is higher than the rating.

�

Modify Psw

Modify Psw

Old Psw 000000

New Psw 000000

New Psw 000000


Modify Psw

, press





Input Psw

000000

Modify Psw

Old Psw 000000

New Psw 000000

New Psw 000000

After pressing the

OK


↓

or to move inverse cursor among six numbers of the password, and press or to select the set one when inverse cursor stopping. Press

OK or

ESC to select modifying parameters or exit input.

After correct password input, inverse cursor appears, and user can modify operation password. Press or to change value. Press

↓

or to move inverse cursor. In this interface, input old password firstly, and then input expected new password twice.

This password is the necessary verification for modifying all kinds of parameters. The default is

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‘000000’.

Tip Message

Modify OK

�

Default Set

Default Set

Yes No


OK to save, and the controller will run with new password.


Default Set

, press




OK to restore defaults.

Input Psw

000000

After pressing the

OK


↓

or to move inverse cursor among six numbers of the password, and press or to select the set one when inverse cursor stopping. Press OK or ESC to select modifying parameters or exit input.

Default Set

Yes No

After correct password input, inverse cursor appears, and user can select to restore defaults or not.

Press or

↓

to move inverse cursor. In this interface, select ‘Yes’ to restore defaults, or ‘No’ to cancel and remain current values.

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Tip Message

Modify OK

�

The Others

Tip Message

Batt UVW

Psw Default?


OK and the controller will run with your setting.

to save,

In any interface, warning window will automatically pop out once warning event occurs as below: OVD,

UVW, LVD, Current Err, Over Current, Over Temp or PV OVD, press any key to quit. Inspecting it carefully is recommended in case that some potential hazard occurs.

Press ESC and simultaneously in any interface, and user can choose to recover default password or not. Press

OK to recover default password, or press

ESC to remain current password.

does n

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The Ethernet port supports HTTP, TCP/IP protocols to provide a fully web-enabled interface between the eTracer and a LAN network. Some of the many features the

Ethernet connection provides include:

• Monitor the controller from a web browser

• Modify controller settings from a web browser

• Create custom web pages to show system data

• Send a text message if a fault or alarm occurs

This section provides a summary of each of the features. For detailed information about Ethernet connectivity and networking, please refer to our website at:

http:// www.epsolarpv.com////

Connect to the eTracer via an Ethernet network or connect the controller directly to a

PC using an Ethernet cross-over cable. Use CAT-5 or CAT-5e twisted pair Ethernet cables with RJ-45 connectors.

Factory default network Settings:

DHCP

Static IP manual

192.168.1.2

Subnet mask

Gateway

TCP/IP port

255.255.255.0

192.168.1.1

80

Connect the eTracer controller to the network using an Ethernet cable. Open a web browser on any PC on the network. Enter the IP address of the controller

(‘192.168.1.2’ by default) in the address bar of the web browser. The eTracer user login webpage will load. Links are provided to Real Time Data, Ctr Para Set, Net Para

Set, Log Query, Password, and Help Document pages. Pages served by the eTracer

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are ideal for retrieving quick information about the charge controller and making adjustments to network settings. However, there is no ability to customize the layout or data displayed. Also, information from multiple controllers cannot be displayed on the same webpage.

Set the eTracer IP address, corresponding subnet mask and default gateway and connect to network. Enter IP address of equipment at the address bar of browser and then the equipment can be monitored.

Web monitoring mainly includes such functions as user login, real-time data , control parameters setting, network parameters setting, log query and password modification, etc.

Not all users that are connected into Internet/Intranet can browse those data in the system. Generally password should be input so as to ensure safety of the system.

Enter network password and press the button “log on”, and if it is right, it will display monitoring page; otherwise, it will prompt “Password Error”.

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2) R T ime D ata

Click “Real Time Data” on the left side to view real-time operating parameters.

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3) Ctr

Click “Ctl Para Set” on the left side to enter Control Parameter Set page and the system will display the current control parameter configuration. Users can also modify control parameters. After users modify control parameters and click “submit”, if it is successfully adjusted, “Save Success” will pop out; otherwise, “illegal para” will appear. Click “default”, control parameters will recover to default values in line with current system voltage.

Notes: ‘Batt Rate Voltage’ as battery rated voltage is displayed according to the real system value, it is not changeable. If parameter modified in the period is not up to the standard range, dialogue box “illegal para” will pop out and at the same time, the parameter will change to the previous value.

4) Net Para

Click “Net Para Set” on the left side to enter Network Parameter Set page and the system will display the current network parameter configuration. After users modify control parameter and click “submit”, if it is successfully adjusted, “Save Success”

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will pop out; otherwise, “illegal para” will appear.

Click “Log Query” on the left side to enter Log Query page. Users can choose “Data

Log” or “Event Log”, and after click “Submit”, the system will display all current record page by page. Users can check records by turning pages. Click “Last” to turn to the previous page and click “Next” to turn to the next page. Users can also choose to directly jump to any page to check records by entering page No., on “Input Page No” and click the button of “Jump”, the page No. entered should be less than the total page

No., otherwise, it will prompt errors.

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Click “Password” on the left side to enter password modification page. After enter the old and new passwords, the system will judge if the old password is right and if the new passwords entered twice is the same. If it is right, the system will present “Save

Success”, otherwise, “Password Error” will appear.

Notes: The input only supports numbers 0-9.

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eTracer only records daily data of recent 30 days and it always records standard data as below. The space which can be used to record data will reduce with the increase of stored data.

General data:

• Battery voltage

• Solar modules voltage

• Charging current

• Charging power

• Intraday energy generated

• Battery temperature

• Controller temperature

• SOC percentage

• Battery status

• Charging status

• Warning////Error

1.

CAN

MC1.5.3.81-4L port supports CAN bus protocol to be used to connect remote meter or controller. The remote meter offers features as below:

• Monitor controller status

• Modify controller parameters

• Display system data on the screen

• Error or warning happens, displayed on the screen or LED indicator prompts

2.

RS

RS-232 port supports user-defined serial communication protocol to update controller software. Controller can be connected to PC with a cross-over serial line. Users can

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download from our home page the latest controller program and update software to update controller.

The way to download program file:

Turn off controller at first and make updating software on operation, which is as follows:

① Click “Browse” and choose the program file (type is LOF). If the file is not up to the requirements (wrong type, uncompleted or error with revision, etc), it will be prompted via dialogue box popping out. On “File Description” bar, the basic information on the file chosen will be displayed.

② Choose communication serial whose baud rate is 115200bps by default and click the button “Open”.

③ Power on the controller. It will start downloading program and the progress bar displays the percentage.

④ Restart the controller after downloading program.

Notes: In the period of procedure programming, if the power is off or disconnected, it

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will prompt “connect time out”.

····

PV

S hort C ircuit

If PV short circuit occurs, eTracer will stop charging. Clear it to resume normal operation. But PV input cannot exceed 100V, otherwise it may damage the controller.

····

PV

If charging current is much more than rating, the controller will disconnect solar module(s). So eTracer may not work in the maximum power point if PV current doesn’t match with the current rating.

····

PV

If PV voltage is larger than maximum input open voltage 150V, PV will remain disconnected and warn until the voltage falls safely below 145V. PV voltage cannot be too high, otherwise it may damage the controller.

····

PV Reverse d

Fully protection against PV reverse polarity, no damage to the controller will result.

Correct the miswire to resume normal operation.

····

Battery

Reverse d

Fully protection against battery reverse polarity, no damage to the controller will result. Correct the miswire to resume normal operation.

····

Overheating

If the temperature of the controller heat sinks exceeds 85°C, the controller will

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automatically start the overheating protection.

�

Charging LED indicator off during daytime when sunshine falls on solar modules properly.

Probable Cause：Solar modules disconnected.

Solution：Confirm that PV and battery wire connections are correct and tight.

�

Battery LED indicator red flashing, LCD displaying ‘OVD’.

Probable Cause：Battery voltage larger than over voltage disconnect voltage (OVD).

Solution：Check if battery voltage too high, and disconnect solar modules.

�

Fault LED indicator flashing, LCD displaying ‘Current Err’.

Probable Cause：Charging current in three paths is unbalanced.

Solution：Disconnect solar modules and restart the eTracer; if the fault still exists, please contact the supplier to make maintenance.

�

Fault LED indicator flashing, LCD displaying ‘Over Current’.

Probable Cause：Charging current is much more than the rating.

Solution ：Please check whether solar modules match with nominal parameter of the controller. When charging current reaches 1.05~1.2 times of the rating, eTracer will automatically adjust charging current to the rating or below but not stop; or 1.2 times much more than nominal value, eTracer will automatically stop charging in 5 seconds.

Controller is automatically circularly activated so as to reconnect charging. Every restarting is 60 seconds delayed, but no limit on number of times.

�

Fault LED indicator flashing, LCD displaying ‘Over Temp’.

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Probable Cause：Heat sinks operational temperature is quite high to 85℃ or above.

75℃, the controller will resume to work.

�

Cannot connect to the controller via RS-232.

Probable Cause：RS-232 serial baud rate setting error or serial-USB adapter incorrect configuration.

Solution： Check the following: 1.The RS-232 cable is straight-through, not a Null

Modem (cross-over); 2.Whether the selected RS-232 serial baud rate is suited for your device; 3.If using a serial-USB adapter, verify that the adapter software is installed and a serial COM port has been mapped. Check the activity light on the USB adapter if it has one. If there is no activity, the wrong COM port has been chosen or there is a configuration issue with the adapter.

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The following inspections and maintenance tasks are recommended at least two times per year for best controller performance.

•Check that the controller is securely mounted in a clean and dry environment.

•Check that the air flow and ventilation around the controller is not blocked. Clear all dirt or fragments on the heat sink.

• Check all the naked wires to make sure insulation is not damaged for serious solarization, frictional wear, dryness, insects or rats etc. Maintain or replace the wires if necessary.

•Tighten all the terminals. Inspect for loose, broken, or burnt wire connections.

•Check and confirm that LED or LCD is consistent with required. Pay attention to any troubleshooting or error indication .Take necessary corrective action.

•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.

•Inspect for dirt, insects and corrosion, and clear up.

•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.

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The eTracer charge controller is warranted to be free from defects for a period of

TWO (2) years from the date of shipment to the original end user. We will, at its option, repair or replace any such defective products.

p rocedure

Before requesting warranty service, check the operation manual to be certain that there is a problem with the controller. Return the defective product to us with shipping charges prepaid if problem cannot be solved. Provide proof of date and place of purchase. To obtain rapid service under this warranty, the returned products must include the model, serial number and detailed reason for the failure, the module type and size, type of batteries and system loads. This information is critical to a rapid disposition of your warranty claim.

T his

1. Damage by accident, negligence, abuse or improper use.

2. PV current exceeding the ratings of product.

3. Unauthorized product modification or attempted repair.

4. Damaged occurring during shipment.

5. Damage results from acts of nature such as lightning, weather extremes.

6. Irreclaimable mechanical damage.

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Nominal System Voltage

Nominal Battery Current

Maximum Solar Input Voltage

ET2415 N

ET3415

N

ET4415

N ET6415 N

20A

12V / 24V / 36V / 48V dc

30A 45A

150V dc

60A

Battery Voltage Range

Maximum Input Power

8～72V dc

12V： 260W 400W 600W 800W

24V： 520W

36V： 780W

48V： 1040W

800W

1200W

1600W

1200W

1800W

2400W

1.4～2.2W

1600W

2400W

3200W

Self Consumption

Grounding

Remote Temperature Sensor Port

Remote Battery Voltage Sense Port

CAN BUS Port

Ethernet Port

Serial RS-232 Port

Solar or Battery Negative Terminal

MC1.5.3.81-2L

MC1.5.3.81-2L

MC1.5.3.81-4L

RJ45

DB9, male connector

Charging Stages

Temp. Compensation Range

Temp. Compensated Setpoints

MPPT，Boost //// Equalize，Float

-25℃ ~ +55℃

Equalize，Boost，Float，LVD

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Setpoingts:

Gel Acid

Equalize Duration Time: Gel-NO

Sealed Acid

60～180 Minutes

Flooded Acid

60～180 Minutes

Boost Duration Time:

Over Voltage Disconnect Voltage:

60～180 Minutes

Upper limit：17V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Lower limit：15V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Default：16V ⁄ 12V; ×2 ⁄ 24V; ×3 ⁄ 36V; ×4 ⁄ 48V

Charging Limit Voltage:



Default：15.5V ⁄ 12V; ×2 ⁄ 24V; ×3 ⁄ 36V; ×4 ⁄ 48V

Over Voltage Reconnect Voltage:



Default：15V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Equalize Charging Voltage:

Gel-NO

Gel-NO

Gel-NO

Upper limit：15.2V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Lower limit：14.2V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Default：

14.6V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V;

×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Default：

14.8V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V;

×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Boost Charging Voltage:



Default： Default： Default：

14.2V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; 14.4V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; 14.6V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V;

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×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Float Charging Voltage:

×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V



Default：13.8V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Boost Reconnect Charging Voltage:



Default：13.2V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Low Voltage Reconnect Voltage:



Default：12.6V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Under Voltage Warning Reconnect Voltage:



Default：12.2V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Under Voltage Warning Voltage:



Default：12V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Low Voltage Disconnect Voltage:



Default：11.1V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Discharging Limit Voltage:



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Default：10.8V ⁄⁄⁄⁄ 12V; ×2 ⁄⁄⁄⁄ 24V; ×3 ⁄⁄⁄⁄ 36V; ×4 ⁄⁄⁄⁄ 48V

Temperature Compensation Coefficient:

(TEMPCO)*

Upper limit： -9mV / ℃ / cell (25℃ ref.)

Lower limit： -0mV / ℃ / cell (25℃ ref.)

Default： -5mV / ℃ / cell (25℃ ref.)

M echanical

ET3415 N ET4415 N ET6415 N ET2415 N

Overall:

Length： 206mm width： 203mm height： 105mm

Mounting:

Length： 150mm

Net Weight:

Terminal:

Mounting hole: width： 193mm

2.6kg

35mm

2

231mm

203mm

105mm

285mm

203mm

105mm

150mm 200mm

193mm

4.1kg

35mm

2

193mm

4.4kg

35mm

Φ10（M8）

2

285mm

203mm

121mm

200mm

193mm

5.0kg

35mm

2

Environment al

Ambient Temp. Range

Storage Temp. Range

Humidity range

Altitude Range

Enclosure

-25℃ ～ +55℃

-30℃ ～ +85℃

10 ～ 90% N.C.

≤3000 m

IP20

Charging over current disconnect

Charging over current reconnect

Solar short circuit disconnect

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51

Solar short circuit reconnect

Solar polarity reversed protect

Battery polarity reversed protect

Battery high voltage disconnect

Battery high voltage reconnect

High temperature disconnect

High temperature reconnect

PV Power — Conversion Efficiency Curves

llumination IIIIntensity

1000W/m

Test model: ET2415N

1.

Solar MPP Voltage(17V、34V、68V、100V) //// System Voltage(12V)

Efficiency

17V

34V

68V

100V

2.

Solar MPP Voltage(34V、68V、100V) //// System Voltage(24V)

Efficiency

34V

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Power

68V

100V

Power

3.

Solar MPP Voltage(68V、100V) //// System Voltage(36V)

Efficiency

68V

100V

Power

4.

Solar MPP Voltage(68V、100V) //// System Voltage(48V)

Efficiency

68V

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100V

Power

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54

ET2415 Dimensions（mm）

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