BougeRV BJ2430N Negative Ground MPPT Solar Charge Controller User Manual

User Manual for BougeRV models including: BJ2430N Negative Ground MPPT Solar Charge Controller, BJ2430N, Negative Ground MPPT Solar Charge Controller, Ground MPPT Solar Charge Controller, Solar Charge Controller, Charge Controller

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BougeRV Sunflow MPPT Solar Charge Controller 30A, w/ Low-Temp Cut-Off, APP Control, Backlit LCD, 30 Amp Solar Panel Regulator 12V/24V for LiFePO4, SLD, Gel, FLD, AGM Battery, RV, Marine, Upgraded : Patio, Lawn & Garden

BougeRV MPPT Solar Charge Controller 30A, w/ Low-Temp Cut-Off, APP Control, Backlit LCD, 30 Amp Solar Panel Regulator 12V/24V for LiFePO4, SLD, Gel, FLD, AGM Battery, RV, Marine, Upgraded

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[PDF] NEGATIVE GROUND MPPT SOLAR CHARGE CONTROLLER

BJ2440N. BJ2460N. (Battery voltage 2V)~72V. >99%. >95%. 20A. √. √. √. √. √. √. System voltage. Battery Type. Maximum input of PV system. Maximum PV input ...

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NEGATIVE GROUND MPPT SOLAR CHARGE CONTROLLER
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Content
1. Safety Instructions -----------------------------------------------------------1 2. Technical After Services----------------------------------------------------2 3. Identification Of Parts-----------------------------------------------------3 4. LCD Display Interface Overview------------------------------------------4 5. System Wiring----------------------------------------------------------------5 6. Wiring Instructions--------------------------------------------------------- 5 7. LCD Display Interface-------------------------------------------------------7 7-1. Menu Display Icon------------------------------------------------------------7 7-2. Key Operation-----------------------------------------------------------------7 8. Working Mode----------------------------------------------------------------9 8-1. Working Mode 1: Load mode-----------------------------------------------9 8-2. Working Mode 2: No load mode-----------------------------------------10 8-3. Working Mode 3: Viewing mode-----------------------------------------11 9. Bluetooth module-----------------------------------------------------------12 10. Parameter setting menu-------------------------------------------------13 Menu 1: Battery type setting(Mode 1, Mode 2)-----------------------------13 Menu 2: System voltage(Mode 1, Mode 2)-----------------------------------14 Menu 2.1: Boost charging voltage(Mode 1, Mode 2)-----------------------14 Menu 2.2: Floating charging voltage(Mode 1,Mode 2)--------------------15 Menu 2.3: Boost charging reconnect voltage(Mode 1,Mode 2)---------15 Menu 2.4: Equalizing charging voltage(Mode 1,Mode 2)-----------------15 Menu 2.5: Over-discharge voltage(Mode 1)---------------------------------15 Menu 2.6: Over-discharge delay(Mode 1)------------------------------------16 Menu 2.7: Over-discharge reconnect voltage(Mode 1)--------------------16 Menu 3: Solar panel output voltage(Mode 1,Mode 2,Mode 3)-----------16 Menu 4: Solar panel output current(Mode 1,Mode 2,Mode 3)----------17 Menu 5: Generated energy of the day(Mode 1,Mode 2,Mode 3---------17 Menu 6: Load current(Mode 1,Mode 3)---------------------------------------17 Menu 7: Discharge energy of the day (mode 1, mode 3)-----------------18 Menu 8The controller temperature(mode 1, mode 2, mode 3)-------18 Menu 9The battery temperature(mode 1, mode 2,mode 3)----------18

Menu 10: Load mode(mode 1)------------------------------------------------19 Menu 10.1: Light control mode + Duration mode(mode 1)--------------20 Menu 11: Lithium battery low temperature charging protection (mode 1, mode 2)--------------------------------------------------------------------------20 Menu 12: Load short circuit protection(mode 1)---------------------------21 Menu 13: Charging current(mode 1, mode 2)------------------------------21 Menu 14: Constant voltage output of lead acid battery(mode 1, mode 2)------------------------------------------------------------------------------------21 Menu 15 Light control voltage(mode 1)-----------------------------------22 Menu 16: Light control delay(mode 1)---------------------------------------22 Menu 17: Error code(mode 1, mode 2, mode 3)---------------------------22 11. System restart & Factory reset------------------------------------------23 Menu 18: System restart(mode 1, mode 2, mode 3)----------------------23 Menu 19: Factory reset(mode 1, mode 2, mode 3)------------------------23 12. Error Code-------------------------------------------------------------------24 13. Base Specification---------------------------------------------------------26 14. Battery Charge Parameter----------------------------------------------27 15. TTL communication-------------------------------------------------------29 16. RS485------------------------------------------------------------------------ 29 17. CAN communication(Optional)----------------------------------------29 18. Charging-------------------------------------------------------------------- 30 18-1. Charging of lead-acid battery-------------------------------------------30 18-2. Charging of lithium battery---------------------------------------------31 19. Product Dimensions------------------------------------------------------32

1. Safety Instructions
Please follow the safety instructions for operation, the damage caused by not following the safety instructions shall be borne by the individual.
Please save these instructions
1-1.General Safety Information 1.Read all of the instructions and cautions in the manual before installation. 2.There are no repairable parts for this controller,do not disassemble or attempt to repair the controller. 3.Keep the controller from the water. 4.Make sure all connections with controller are tight. 5.Please read the product installation steps to ensure all connections are correct.
1-2.Charge Controller Safety 1.NEVER connect the solar panel array to the controller without a battery. The battery must be connected first. 2.Ensure input voltage does not exceed 100 Voc to prevent permanent damage. 3.Ensure that the output current of the solar panel does not exceed the rated charging current of the controller.
1-3.Battery Safety 1 . Do not let the positive (+) and negative (-) terminals of the battery touch each other. 2. Explosive battery gases may be present while charging. Be certain there is enough ventilation to release the gases. 3. Be careful when working with large lead-acid batteries. Wear goggles and have fresh water available in case there is contact with the battery acid. 4. Over-charging and excessive gas precipitation may damage the battery plates and activate material shedding on them. Too high of an equalizing charge or too long of one may cause damage. Please carefully review the specific requirements of the battery used in the system.
1

2. Technical After Services
BougeRV provides 1-on-1 Solar Solution. If you have any questions during use, please feel free to contact us:
service@bougerv.com 1-408-656-8402 www.bougerv.com 1-669-232-7427
Whataspp
If you could provide the following relevant information to our email (service@bougerv.com); we can provide you with technical support solutions faster. (1)The connection method of the solar panels (series/parallel, quantity, voltage, power). (2)The voltage and battery type of the battery. (3)The pictures or videos of the controller: battery voltage, battery charging current, the output voltage of the solar panel.
2

3. Identification Of Parts

345678

9 10

1 LCD Display Screen 2 Button 3 PV Positive Terminal 4 PV Negative Terminal 5 Battery Negative Terminal 6 Load Negative Terminal 7 Battery Positive Terminal 8 Load Positive Terminal 9 TTL Communication Interface 10 Temperature sensor Interface 11 RS485/CAN Communication Interface

4. LCD Display Interface Overview

15 10

64 7 5

1 Daytime icon 2 Night icon 3 Solar panel 4 Battery 5 Load 6 Charging state 7 Discharging state 8 System voltage 9 RS485/CAN communication icon

10 Bluetooth icon 11 Battery type 12 Charging stage 13 Load light control icon 14 Parameter 15 Unit symbol 16 Operating mode 17 Warning icon

5.System Wiring

1. The positive and negative poles of the battery must be connected to the battery terminals of the controller first. 2. Finally, connect the positive and negative poles of the solar panel to the PV terminals of the controller. 3.Make sure that the Bluetooth of the mobile phone is turned on, and open the APP "Solar" to enter the setting interface.

6.Wiring Instructions

1.Remove the plastic cover.(Pick up)

2.Unscrew the screws. (Counterclockwise)

3. Plug the cable into the correct port.
5

4. Tighten the screws. (Clockwise)
5. Check the wiring condition and put the plastic cover back. Please strictly follow the above sequence for connection.

fuses

Note During the wiring process, the attached terminal lugs can be used for connection. After stripping the wire, put it into the terminal lugs and squeeze it with a crimping pliers.
6

7. LCD Display Interface
7-1.Menu Display Icon

Display Section

Status

Charge And Load Status

Parameter BAT Type Indicate And Warning

Status Icon Indication
Day Night And Charge Indication

Status On On On

Description Daylight Detected No Daylight Detected Solar Charging Battery

Battery Indication

Battery Voltage is Hight Battery Voltage is Middle

Battery Voltage is Low

Load Indication
System Error Indication
Voltage Indication

On OFF 12V 24V

Load On Load Off System Error - Check Error Code System Normally 12V System Voltage 24V System Voltage

7-2.Key Operation 1. Menu Switching
Press the button to scroll the menu backward to the previous menu.
Press the button to scroll the menu forward to the next menu.

2. Enter the Parameter Setting Interface In the menu interface, press and hold the button for 2s to enter the menu parameter adjustment interface.
3. Adjust Parameters Enter the parameter setting interface, press the button to adjust the parameter.(Decrease) Enter the parameter setting interface, click the button to adjust the parameter.(Add)
4. Save Parameters After adjusting the parameters, press and hold the button for 2s to confirm the setting parameters.
5. Working mode setting 5.1 Enter the working mode setting interface On the main menu interface, press and hold the button for 5s to enter the working mode setting interface, and the working mode icon will display.
5.2 Adjust working mode Enter the parameter setting interface, press the button to adjust the parameter.(Decrease) Enter the parameter setting interface, click the button to adjust the parameter.(Add)
5.3 Save working mode setting After adjusting the parameters, press and hold the button for 2s to confirm the setting parameters.
8

8. Working Mode

8-1 Working Mode 1: Load mode

Menu 1: Battery type setting

Menu 2: System voltage

Charging Stage Menu
Menu 2.1: Boost charging voltage

Menu 3: Solar panel output voltage

Menu 4: Solar panel output current

Menu 2.2: Floating charging voltage

Menu 5: Generated energy of the day

Menu 6: Load current

Menu 2.3: Boost charging reconnect voltage

Menu 7: Discharge energy of the day

Menu 8: The controller temperature

Menu 2.4: Equalizing charging voltage

Menu 9: The battery temperature

Menu 10: Load mode

Menu 2.5: Over-discharge voltage

Menu 11: Lithium battery low temperature charging protection

Menu 10.1: Light control mode + Duration mode

Menu 2.6: Over-discharge delay

Menu 12: Load short circuit protection

Menu 13: Charging current

Menu 2.7: Over-discharge r econnect voltage

Menu 15: Light control voltage

Menu 16: Light control delay

Menu 14: Constant voltage output of lead acid battery

Menu 17: Error code

8-2 Working Mode 2: No load mode

Menu 1: Battery type setting

Menu 2: System voltage

Menu 3: Solar panel output voltage

Menu 4: Solar panel output current

Menu 5: Generated energy of the day

Menu 8: The controller temperature

Menu 9: The battery temperature

Menu 11: Lithium battery low temperature charging protection

Menu 13: Charging current

Menu 14: Constant voltage output of lead acid battery

Menu 17: Error code

Menu 2: System voltage

Menu 2.1: Boost charging voltage

Menu 2.2: Floating charging voltage

Menu 2.3: Boost charging reconnect voltage

Menu 2.4: Equalizing charging voltage

8-3 Working Mode 3: Viewing mode

It is recommended to switch to mode 3 after setting the system parameters, so that it is convenient to check the daily work of the PV system.

Menu 3: Solar panel output voltage

Menu 4: Solar panel output current

Menu 5: Generated energy of the day

Menu 8: The controller temperature

Menu 7: Discharge energy of the day

Menu 6: Load current

Menu 9: The battery temperature

Menu 17: Error code

9. Bluetooth module
Built-in Bluetooth communication function can monitor the operation data, fault status and adjust the operation parameters of the controller in real time through mobile APP. Download Scan the QR code to download the application;
Solar APP IOS & Android
Search for "Solar App" in the APP Store (for IOS devices) or Google Play (for Android devices.
12

10. Parameter setting menu
Main Menu

Automatic loop playback every 5s

Main menu (current)

Main menu (voltage)

1.On the parameter setting interface, if there is no operation for 10s, it will automatically jump back to the main menu. 2.On the parameter setting interface, if the parameter is not confirmed, the parameter will keep flashing, confirm until the parameter does not flash, indicating that the parameter setting is successful. 3.The backlight turns off after 10s of no operation.

Menu 1: Battery type setting (Mode 1, Mode 2)
SLD =Sealed lead acid battery GEL=GEL battery FLD=Flooded lead acid battery LI=Lithium iron phosphate battery/LiFePO4 USE=Custom battery
Setting method: 1. On the battery type menu, press and hold [SELECT] for more than 2s until the parameter flashes to enter the battery type parameter setting interface. 2. On the battery type parameter setting interface, single press [SELECT] or [ENTER] to adjust the parameters. 3. After completing the parameter setting, press and hold [ENTER] for more than 2s until the parameter does not flash, and the parameter setting saves successfully; single press [ENTER] to switch to the next menu or automatically jump back to the main menu after 10s of no operation.
13

Menu 2: System voltage(Mode 1, Mode 2)
1. Automatically identify voltage (only applicable to the lead-acid battery) 2. 12V 3. 24V Setting method: 1. On the system voltage menu, press and hold [SELECT] for more than 2s until the parameter flashes to enter the system voltage parameter setting interface. 2. On the system voltage parameter setting interface, single press [SELECT] or [ENTER] to adjust the parameters. 3. After completing the parameter setting, press and hold [ENTER] for more than 2s until the parameter does not flash, and the parameter setting saves successfully; single press [ENTER] to switch to the next menu or automatically jump back to the main menu after 10s of no operation. Note: The system voltage will take effect after the system voltage setting saves successfully.
Menu 2.1: Boost charging voltage(Mode 1, Mode 2)
æ12V system: 9-17V, 0.1V step (default 14.4V)
ç24V system: 18-34V, 0.2V step (default 28.8V)
Note: This menu will only appear when the battery type is set to LI or USE.
Setting method: 1. On the boost charging voltage menu, press and hold [SELECT] for more than 2s until the parameter flashes to enter the boost charging voltage parameter setting interface. 2. On the boost charging voltage parameter setting interface, single press [SELECT] or [ENTER] to adjust the parameters. 3. After completing the parameter setting, press and hold [ENTER] for more than 2s until the parameter does not flash, and the parameter setting is successful; single press [ENTER] to switch to the next menu or automatically jump back to the main menu after 10s of no operation.
14

Menu 2.2: Floating charging voltage(Mode 1, Mode 2)
æ12V system: 9-17V, 0.1V step (default 13.8V) ç24V system: 18-34V, 0.2V step (default 27.6V)
Note: This menu will only appear when the battery type is set to USE. Setting method: Same as above.
Menu 2.3: Boost charging reconnect voltage (Mode 1, Mode 2)
æ12V system: 9-17V, 0.1V step (default 13.2V) ç24V system: 18-34V, 0.2V step (default 26.4V) Note: This menu will only appear when the battery type is set to LI or USE. Setting method: Same as above.
Menu 2.4: Equalizing charging voltage(Mode 1, Mode 2) æ12V system: 9-17V, 0.1V step (default 14.6V) ç24V system: 18-34V, 0.2V step (default 29.2V)
Note: This menu will only appear when the battery type is set to USE. Setting method: Same as above.
Menu 2.5: Over-discharge voltage(Mode 1)
æ12V system: 9-17V, 0.1V step (default 11.1V) ç24V system: 18-34V, 0.2V step (default 22.2V)
Note: This menu will only appear when the battery type is set to LI or USE. Setting method: Same as above.
15

Menu 2.6: Over-discharge delay(Mode 1)
1-60s. (default 5s) Note: This menu will only appear when the battery type is set to USE. Setting method: Same as above.
Menu 2.7: Over-discharge reconnect voltage(Mode 1) æ12V system: 9-17V, 0.1V step (default 12.6V) ç24V system: 18-34V, 0.2V step (default 25.2V) Note: This menu will only appear when the battery type is set to LI or USE. Setting method: Same as above.
Menu 3: Solar panel output voltage (Mode 1, Mode 2, Mode 3) Display solar panel output voltage. Note: The voltage value only can be read, but cannot be adjusted; Setting method: Same as above.
16

Menu 4: Solar panel output current (Mode 1,Mode 2,Mode 3) Display solar panel output current. Note: The current value only can be read, but cannot be adjusted; Setting method: Same as above.
Menu 5: Generated energy of the day (Mode 1, Mode 2, Mode 3) Display generated energy of the day. Note: The value only can be read, but cannot be adjusted; Setting method: Same as above.
Menu 6: Load current(Mode 1, Mode 3) Displays the output current at the load port of the controller. Note: The value only can be read, but cannot be adjusted; Setting method: Same as above.
17

Menu 7: Discharge energy of the day(mode 1, mode 3)
Display the output energy of the controller load port of the day.
Note: The value only can be read, but cannot be adjusted;
Setting method: Same as above.
Menu 8: The controller temperature (mode 1, mode 2,mode 3)
Display the controller temperature. æ°F (defaults) ç°C
Setting method: 1. On the controller temperature menu, press and hold [SELECT] for more than 2s until the parameter flashes to enter the controller temperature parameter setting interface. 2. On the controller temperature parameter setting interface, single press [SELECT] or [ENTER] to choose the °F or °C . 3. After completing the parameter setting, press and hold [ENTER] for more than 2s until the parameter does not flash, and the parameter setting is successful; single press [ENTER] to switch to the next menu or automatically jump back to the main menu after 10s of no operation.
Menu 9The battery temperature (mode 1, mode 2,mode 3) Display the battery temperature. æ°F (defaults) ç°C
Setting method: Same as above.
18

Menu 10: Load mode(mode 1)

Setting method: Same as above.

LCD screen number
24h

Load mode
Normal on mode

000

Manual mode

Description
The load is always on.
On the main menu interface, press and hold [ENTER] for more than 2s to turn on/off the load. (not affected by light control)

When there is no sunlight, the

Pure light

solar panel voltage is less than the light control on voltage, the

control, turn on controller delays for 1 minute

the load at night and then turns on the load ; and turn off the When there is sunlight, the solar

load during the day

panel voltage is higher than the light control off voltage,the

controller delays for 1 minute

and then turns off the load ;

00h

Pure light control turns on the load during the day and turns off the load at night

When there is no sunlight, the solar panel voltage is less than the light control on voltage, the controller delays for 1 minute and then turns off the load ; When there is sunlight, the solar panel voltage is higher than the light control off voltage,the controller delays for 1 minute and then turns on the load

LCD screen number

Load mode

Description

display: 11, setting is usually 1-14h

Pure light control,turn on the load at night and turn off the load during the day + time control

When there is no sunlight, the solar panel voltage is less than the light control on voltage, the controller delays for 1 minute and then turns on the load ; When there is sunlight, the solar panel voltage is higher than the light control off voltage,the controller delays for 1 minute and then turns off the load;

display: 22, setting is usually 01-014h

Pure light control turns on the load during the day and turns off the load at night + time control

Menu 10.1: Light control mode + Duration modecmode 1)
The adjustment range is 1-14 hours. æWhen menu 10 selects 11: 1-14h, 1 step (default 1h) çWhen menu 10 selects 22: 01-014h, 1 step (default 1h) Setting method: Same as above.

Menu 11: Lithium battery low temperature charging protection (mode 1, mode 2)
æoFF: Turn off protection (default) çon: Turn on the protection (the temperature sensor detects that the temperature is 0°Cc32°F, start the low temperature charging protection, and do not charge the lithium battery until the battery temperature returns to 2°Cc35.6°F. Note:æ Make sure to connect the temperature sensor when turn on the lithium battery low temperature charging protection. çThis menu will only appear when the battery type is set to LI or USE. Setting method: Same as above.
20

Menu 12: Load short circuit protectioncmode 1) æon: open load short-circuit protection cdefault çoFF: close load short-circuit protection
Setting method: Same as above.
Menu 13: Charging current (mode 1, mode 2) Adjust current range: 0----rated current cfor examplethe 60A controller adjusting current range is 0-60A æ Set 0No charging ç Set 1----rated currentLimit charging currentc1 step Default: rated current Setting method: Same as above.
Menu 14: Constant voltage output of lead acid battery (mode 1, mode 2) æ oFF: The controller can not output without battery. (default) çon: The controller can output without battery.
Note: When the lead-acid battery cannot work due to over-discharge, this function can be turned on, and the controller can activate the lead-acid battery with constant voltage output lead acid battery activation.
Setting method: Same as above.
21

Menu 15: Light control voltage(mode 1) æ12V system voltage: 5-11V, 5V(default) ç24V system voltage: 10-22V, 10V(default) Note: æLight control on: The solar panel voltage is less than the adjusting voltage. ç If it is the system of 24V, relevant voltage points shall be automatically multiplied by 2. Setting method: Same as above. Menu 16: Light control delay(mode 1) Adjust voltage range: 0-960s, step 60s. Default60s. Note: Minimum duration required to meet the light control on or off condition. Setting method: Same as above.
Menu 17: Error code(mode 1, mode 2, mode 3) E00: The system is working normally. Note: It can only be viewed, and it shows that the E00 system is working normally, and other error codes need to be checked. Setting method: Same as above.
22

11. System restart & Factory reset
Menu 18: System restart(mode 1, mode 2, mode 3) On the main menu, press and hold [ENTER] for more than 5s until the parameter flashes to enter the parameter setting interface. 2. On the parameter setting interface, single press [SELECT] or [ENTER] to choose F01 or F02. 3. After completing the parameter setting, press and hold [ENTER] for more than 2s until the parameter does not flash, and the parameter setting is successful.
Menu 19: Factory reset (mode 1, mode 2, mode 3) F02 Setting method: Same as above.
23

12. Error Code

Error code Cause of failure

Solution

Normal system

Battery over-discharge
Battery over-voltage
Battery under-voltage warning

1.Turn off load output, after the battery voltage recover to the over -discharge reconnect voltage, relieve over-discharge to restore load output. 2.The battery voltage does not match the system, check the system voltage.
Stop charging, check and find out the cause of high battery voltage. The charging will be automatically restored after the battery voltage is lowered.
Battery voltage below undervoltage warning threshold, warning only.

Load over-current

Turn off load output, and perform delay protection by a multiple of rated current.

Load short-circuited Turn off load output.

Controller high temperature abnormal state

Charging will be stopped when the controller temperature is above 75°C and recover when it is below 70°C.

Error code

Cause of failure

Solution

Battery high temperature charging protection

Charging will be stopped when the battery temperature is above 75°C and resumed when it is below 70°C.

Solar panel over-voltage

Stop charging when the output voltage of the solar panel is higher than 95V, and recover charging when the voltage is lower than 90V.

Lead acid battery is not connected

In lead-acid battery mode, the battery is damaged or not connected.

Battery high temperature discharging protection
Battery low temperature discharging protection
Overcharge protection
Battery low temperature charging protection
Charging and discharging disabled by system setting

Load output will be turned off when the battery temperature is above 75°C and recover when it is below 70°C.
Load output will be turned off when the battery temperature is below -35°C and resumed when it is above -30°C
Turn off charging, the battery voltage is higher than the over-voltage voltage, turn off charging, the battery voltage drops, and recover after 10s.
Charging will be stopped when the battery temperature is below -35°C and resumed when it is above -30°C
System charging or discharging failure.

13. Base Specification

Model
System voltage Rated charging current
Battery Type
Maximum input of PV system

BJ2430N 30A

BJ2440N 12V/24V
40A

BJ2460N 60A

SLD/GEL/FLD/LI/USE,SLD as default

450W/12V 900W/24V

600W/12V 1200W/24V

900W/12V 1800W/24V

Maximum PV input voltage

100V (95V protection, 90V recovery)

MPPT operating voltage range
MPPT tracking efficiency
Charging conversion efficiency Rated load current
Charging current setting
Lithium battery low temperature charging protection
Constant voltage output setting Charging temperature compensation of lead-acid battery
Temperature unit setting
Overload/ Short-circuit protection

(Battery voltage +2V)~72V
>99% >95% 20A

Battery operating voltage range

8V-32V

TTL communication

Baud rate: 9,600 bps

RS485 communication
Bluetooth communication
CAN communication
Historical data

RJ45 interface, with power output 5V/200 mA,The baud rate is 9,600 bps by default, adjustable.
built-in bluetooth
RJ45 interface, optional (RV-C protocol) Save the last 200 days of historical data

Protection function

PV overvoltage protection, PV reverse connection protection, PV short circuit protection, night reverse charging protection, input power limit protection, over-temperature protection, load short-circuit protection, overload protection, battery over-voltage/over-discharge protection, battery reverse connection protection, battery end short circuit protection.

Grounding type
Operating ambient temperature range

Grounding of common negative electrode -31°F~149°Fc-35°C~65°C

Protection grade
Cooling mode Weight

IP34

Natural heat dissipation

1076g

1789g

2503g

14. Battery Charge Parameter

Battery parameters

Battery Type Sealed Gel lead-acid Flooded lead

Setting/ Voltage

Lead-Acid battery

SLD

GEL

-acid battery FLD

Odivsecrovnonlteacgtevoltage 16.0V

16.0V

Equalizing voltage 14.6V

14.8V

Lithium Custom

battery battery

USE

16.0V --

16.0V
0-17V (Default 14.6V) Note: Set to 0, (Do not turn on the equalization charging function

Boost voltage

14.4V

14.2V

14.6V

9-17V (Default 9-17V (Default 14.4V) 14.4V)

Float charge voltage

13.8V

0-17V (Default 13.8V)

Note: Set to 0, (Do not turn on the float

charging function)

Breocoosntncehcatrvgoinltgage
Over-discharge restoring voltage Under-voltage alarming voltage Over-discharge voltage Over-discharge cut off voltage Over-discharge delay

13.2V 12.6V 12.0V 1 1.1V 10.6V
5s

13.2V 9-17V (Default 13.2V) 12.6V 9-17V (Default 12.6V) 12.0V 12.0V 1 1.1V 9-17V (Default 11.1V 10.6V 10.6V
5s 1-60s (Default 5s

Equalizing charging interval

30 days

Note: If the equalization

charging voltage is set

to 0, there is no

equalization charging

interval (/)

Equalizing charging duration

120 min

Note: If the equalization

charging voltage is set

to 0, there is no

equalization charging

duration (/)

Boost charging duration

120 min 120 min 120 min

120 min

Note: If the equalization

charging voltage is set

to 0, there is no boost

charging duration (/)

Temperature

compensation

-3

factor (mV/ /2V)

-3

-- Defaul-3

Note: The above values are the p arameters at 25°C/12V; if it is the system of 24V, relevant voltage points shall be automatically multiplied by 2.

15. TTL communication
1) Default baud rate: 9,600 bps; check bit: none; data bit: 8 bit; stop bit: 1 bit 2) Communication power supply output specification: (8.5V±1V)/: 100mA

TTL-COM

S/N Definition

VCC: communication power supply output

RX: controller data receiving end

TX: controller data transmitting end

GND

16. RS485
1) RS485 communication: Default baud rate: 9,600 bps; parity bit: none; data bit: 8 bit; stop bit: 1 bit Interface type: RJ45, communication power supply output specification: 5V/200mA 2) RJ45 interface communication line sequence definition:

S/N

Definition

Positive terminal

D+

D-

Power ground/signal ground

CAN_H

CAN_L

Note: NC represents an empty pin, which means that the pin is not connected.

17. CAN communication(Optional)
1) CAN communication: support RV-C protocol

18. Charging
18-1: Charging of lead-acid battery

Charging voltage
Equalizing charging voltage MPPT Boost charging voltage
Floating charging voltage Charging reconnect voltage

Constant voltage charging

Floating charging

Time

Fig. 18-1 Charging curve of lead acid battery

Time

Select such battery types as SLD/FLD/GEL/USE, and select the appropriate system voltage. As shown in Fig. 18-1, the charging stages of lead-acid battery are: MPPT charging, constant voltage charging (equalizing/boost/floating charging), and current-limiting charging. The constant voltage charging is divided into three stages: equalizing charging, boost charging and floating charging [MPPT charging] When the battery voltage has not reached the target constant voltage value, the controller will perform MPPT charging. When the battery voltage reaches the constant voltage value, it will automatically exit MPPT charging and switch to constant voltage charging (equalizing/boosting/floating charging).

[Equalizing charging] Regular equalizing charging is good for some batteries. Equalizing charging is mainly to make the charging voltage of battery higher than the standard supplementary voltage, besides, it can vaporize the battery electrolyte to balance the battery voltage and complete relevant chemical reaction. Equalizing charging and boosting charging are not repeated during one full charging to avoid excessive gas evolution or overheating of the battery.

Notes: 1) Since the equalizing charging of floored lead-acid battery produces explosive gas, the battery compartment must be well ventilated. 2) Although the equalizing charging elevates the battery voltage, it may damage the level of sensitive DC loads, therefore, it is necessary to verify that the allowable input voltage of all loads in the system is greater than the set battery voltage value in equalizing charging.

3) Excessive charging and excessive gas evolution may damage the battery plate and cause the active substances on the battery plate to fall off.Besides, excessive high equalizing charging voltage or excessive long equalizing charging duration may damage the battery. Please set relevant parameters according to the specifications of the battery used in the system.
[Boost charging] The duration of boost charging is 2 h (default). When the duration reaches the set value, the system will switch to floating charging.
[Floating charging] Floating charging is the last constant voltage charging stage in the charging cycle of lead-acid battery. The controller keeps the charging voltage constant at the floating charging voltage. At this stage, the battery is charged with a very weak current to ensure that the battery is in full-charging. When the battery voltage is as low as the reconnect voltage of boost charging, the system will exit the floating charging stage and re-enter the next charging cycle.
18-2: Charging of lithium battery

Charging voltage
MPPT Boost charging voltage

Constant voltage charging

Charging current

Time

Time
Fig. 18-2 Charging curve of lithium battery
Select such battery types as LI, and select the system voltage from 12V/24V. As shown in Fig. 18-2, the charging stages of lithium battery are: MPPT charging/boost charging/current-limiting charging.
[MPPT charging] When the battery voltage does not reach the target constant voltage value, the controller conducts MPPT charging to charge the battery with maximum solar power, when reaches, it automatically switches to boost charging.
[Boost charging] In the boost charging stage of lithium battery, when the battery voltage is lower than the boost charging voltage, the system conducts MPPT charging or current-limiting charging, when reaches, it switches to boost charging.
31

BJ2430N

19. Product Dimensions
185mm 172mm

133mm 107mm

5mm

Model: BJ2430N Product dimension: 185*133*75mm Fixed hole position: 5mm
BJ2440N

227mm 214mm

75mm

159.6mm 132mm

75mm

5mm
Model: BJ2440N Product dimension: 227*159.6*75mm Fixed hole position: 5mm
32

BJ2460N

263mm 248mm

186mm 154mm

5mm
Model: BJ2460N Product dimension: 263*186*85mm Fixed hole position: 5mm

85mm

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