Land Dream Series PWM Solar Controller
Land Dream Series PWM Solar Controller

Land Dream Series PWM Solar Controller.

Thank you for selecting our product. Please read this manual carefully before you use this product.

The controller is for off-grid solar system. Main function is protecting battery to prevent battery from over-charging and over-discharging. The intelligent charging process can efficiently extend service life of battery as well as improve system performance.

n Automatic Identify System Voltage, totally compatible with 12V/24V.

n Humanized LCD displaying and double button operation of man-machine interface.

n Completed technical data for setup and modify.

n High efficiency intelligent PWM 3stage charging mode

n The load control mode can be selected, the timer function can be reset for street light at night.

n Discharge capacity control

n RS485 communication interface (optional)

n Charge and Discharge Counter of Ampere Hour

n Working Storage Function: record the total run time of system, record timers of error during running time, record times of full charged battery.

n Reliable over voltage protection, short circuit protection, over load protection, overcharge protection, over-discharge protection.

n Accurate temperature compensation, it can automatically accomodate the charging voltage according to the environmental temperature, optimizing the battery lifetime.

n Roundly reverse connected protection.

n Solar Panels, Battery, Solar Charge Controller positive poles are all connected together, adopting MOS FET in series to control circuit.

n We suggest that controller should be installed indoors. Outdoor installation should keep environment dry, avoid direct sunlight 

n The controller will generate heat in the process of working, please keep the environment ventilation, and stay away from flammable.

n The open circuit voltage of solar panel is too high, (especially 24V and 48Vsystem), please take care.

n Battery contains acidic electrolyte. Please wear goggles in the process of installation.Please wash with water immediately when you exposed to acidic electrolyte carelessly . 

n Battery contains huge power, and prohibit short circuiting positive and negative poles of battery. We suggest that you should install the fuse between battery and controller(slow motion type, the action current should be 1.5 times more than the system current of controller.

n Controller can adjust voltage of charging by detecting environment temperature, so that the controller should be closed to battery as near as possible

n Suggest that the current density of the wire connected to system should under 3A/mm2

n Try to choose stranded copper wire, which can ensure better connect to terminal. Insecure connect will lead to connector generate heat and melt terminal or shell, even cause a fire.

n The battery should be full charged each month constantly(at least once per month), or battery will be damaged.


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Design

Classic Double Color Design

Compared to the black,  Attract people' s attention. Proportionally coordinated, Smart body.


USB

Optional USB Port

Charging interface optional, Support 5V1A CVCC, Charge your mobile devices fast and safe10A / 20A standard USB interface.


Chip

ARM architecture, high-quality 8-bit main controlchip, improve charging efficiency comprehensively.

The main control chip adopts Stmicroelectronics, and the other components adopt Samsung and Fenghua Hi-tech components to ensure the stability and life of the controller.


Heat dissipation

Distinctive heat dissipation character

LD series adopts aluminum alloy radiator for heat dissipation, industrial grade aluminum alloy heat dissipation, longer life and more stable.



ModelLD2410CLD2420CLD2430SLD2440SLD2450S
System Voltage12V/24V DC auto
PV Max Input Voltage55V
Self-consumption<10mA
Max Charging current10A20A30A40A50A
Max Discharging current10A20A30A40A50A
Battery typeSealed(Default)/Gel/Flood
LVD※*11.0V ADJ 9V...12V ; x2/24V ; x4/48V
LVR※*12.6V ADJ 11V...13.5V ;x2/24V ; x4/48V
Float Voltage※*13.8V ADJ 13V... 15V ; x2/24V ; M/48V
Boost Voltage※*14.4V ADJ 13V...17V ;x2/24 ; x4/48V
battery voltage less than 12.6v auto boost 2hours
Battery Over Voltage※*16.5V ; x2/24V ; x4/48V
Reverse Connection ProtectionYes
Load Over Current ProtectionYes, each 30s  auto restart again
USB  OutputOptional/
Charging TypePWM
Charge circuit voltage drop<=0.25V
Discharge circuit voltage drop<=0.1V
Temperature Consumption#For 12Vsystem: -24mV/℃; ×2/24V; ×4/48V
Relative humidity≤95%, N.C
Working Temperature-20℃~+55℃(Product can work continuonsly st full load)
LCD temperature range-20℃~+70℃
Waterproof gradeIP32
Mounting hole sizeΦ5mm
Terminals4mm²/12AWG
16mm²/6AWG25mm²/4AWG
Weight310g320g410g680g690g
Overall dimension(mm)168×92×41.5190×108×41.5200.1×127×55.3




ModelLD2460SLD4830SLD4840SLD4850SLD4860S
System Voltage12V/24V DC auto48V DC
PV Max Input Voltage55V100V
Self-consumption<10mA
Max Charging current60A30A40A50A60A
Max Discharging current60A30A40A50A60A
Battery typeSealed(Default)/Gel/Flood
LVD※*11.0V ADJ 9V...12V ; x2/24V ; x4/48V
LVR※*12.6V ADJ 11V...13.5V ;x2/24V ; x4/48V
Float Voltage※*13.8V ADJ 13V... 15V ; x2/24V ; M/48V
Boost Voltage※*14.4V ADJ 13V...17V ;x2/24 ; x4/48V
battery voltage less than 12.6v auto boost 2hours
Battery Over Voltage※*16.5V ; x2/24V ; x4/48V
Reverse Connection ProtectionYes
Load Over Current ProtectionYes, each 30s  auto restart again
USB  Output/
Charging TypePWM
Charge circuit voltage drop<=0.25V
Discharge circuit voltage drop<=0.1V
Temperature Consumption#For 12Vsystem: -24mV/℃; ×2/24V; ×4/48V
Relative humidity≤95%, N.C
Working Temperature-20℃~+55℃(Product can work continuonsly st full load)
LCD temperature range-20℃~+70℃
Waterproof gradeIP32
Mounting hole sizeΦ5mm
Terminals25mm²/4AWG
16mm²/6AWG25mm²/4AWG
Weight740g440g695g700g750g
Overall dimension(mm)168×92×41.5190×108×41.5200.1×127×55.3

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