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LD2440S

LCD solar charge controller

PDF File: LD2450S controller
Major Functions
The features are listed below:
Automatic Identification System Voltage, 12V/24V auto recognition.
Humanized LCD displaying and double button operation of man-machine interface.
Completed technical data for setup and modify.
High efficiency intelligent PWM 3stage charging
The load control mode can be selected, the timer function can be reset for street light at night.
Discharge capacity control
RS485 communication interface (optional)
Discharge Counter of Ampere Hour
Working Storage Function: record the total run time of system, record timers of error during running time, record times of full charged battery.
Reliable over voltage protection,short circuit protection,over load protection,overcharge protection, over-discharge protection.
Accurate temperature compensation, correcting the charging and discharging voltage automatically, improving the battery lifetime.
Roundly reverse connected protection.
Solar Panels, Battery, Solar Charge Controller positive poles are all connected together, adopting negative MOSFET in series control circuit.
Important Safety Information
It is better to install the controller in the room. If installed the controller outside, please keep the environment dry, avoid direct sunlight.
The controller will be hot in process of working, please keep the environment ventilation, away from flammable.
The open circuit voltage of solar panel is too high, (especially 24V and 48Vsystem), please take care.
The battery has acidic electrolysis, please put on goggles during installation. If you accidentally exposed to the electrolysis, please rinse with water.
Please avoid reverse connection or short circuit connection under 48V system, or the product easy to destroy.
The battery has huge power, prohibit any conductor short circuit the positive and negative pole of battery. Suggest to adding a fuse between battery and controller. (Slow motion type, the action current of the fuse should be 1.5 times rated current of controller.)
The suggestion of using
The controller could detect the temperature of environment to adjust the voltage of charging, so that the controller should be closed to battery as near as possible.
Recommend system current density of cables less than 3A/mm2 .
Try to use multi strand copper wire in order to connecting with the terminal firmly. Loose power connection and/or corroded wires may result in resistive connections that melt wire insulation, burn surrounding materials or even cause fire.
The battery should be full charged each month. Or the battery will be destroyed.
Technical Data

Model

LD2440S

System Voltage

12V/24V

48v

Max. Input Voltage of solar panel

55V

100V

Self-consumption

≤10mA

12mA

Max. charge current

50A/60A

Max. discharge current

50A/60A

LVD

11.0V  ADJ 9V….12V×2/24V×4/48V

LVR

12.6V ADJ 11V….13.5V×2/24V×4/48V

Float Voltage

13.8V ADJ 13V….15V×2/24V×4/48V

Boost charging

14.4V ×2/24V×4/48V Battery Voltage less than 12Vstart boost charging 2 hours

Battery Over Voltage Protection

16.5V ×2/24V×4/48V

ReverseConnection Protection

yes

Load Over Current Protection

Yes, each two minutes restart once

Charge Type

PWM

Temperature Compensation

-24 mV / for 12V system ×2/24V×4/48V

Working Temperature

-20---+55

Terminal Scale

20~3 AWG   25mm2

Strip length

16mm

Waterproof grade

IP32

Size

200.1mm×127mm×55.3mm

Netweight

690g

Please refer to software user’s manual for RS485 communication interface equipped.

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