( LTS-2DPA ) High Power Constant Current Controller Led Japan

DPA series current controller easy to operate, output high precision voltage, can provide high precision control to LED light. It can be controlled by button or RS232, realized 0-255 grade brightness adjustment. With trigger function, can control the light on/off by external signal, and it has power off saving function also. It is a stable performance, powerful light controller.

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High Power Constant Current Controller Led Japan


1.Easy operation, each channel can be adjusted independently, high precision
2.With digital display, button operation, easy to understand
3.Can communicate with PC by RS232/LAN
4.With trigger, quick response and high reliability
5.With current self - applicable function, can identify the maximum current required by different loads
6.With saving function after power off


Model LTS-2DPA24200-1S/2S LTS-2DPA24400-1S/2S LTS-2DPA48500-1S LTS-2DPA48800-1S LTS-2DPA481200-1S
Number of channels 1、2 way 1、2way 1way 1way 1way
Input voltage AC100-240V 110VAC/220VAC by switch AC 180-264V
Power input frequency range 47-63Hz
Baud rate 9600bps
Luminance control method Button adjustment, PC remote adjustment
Luminance control mode Constant current type
Luminance control level 256 Level
Storage function The brightness parameter is saved automatically when power off
External trigger voltage Pulse width trigger, high level 5-24V effective
External trigger frequency Determined by the mode of external trigger signal, if the duty ratio of external trigger signal is 50%, the maximum external effective trigger frequency is 7.5khz
External trigger response time 30us
Communication mode RS232/LAN
Fan power output 24V(≤2A)
Model switching Switch normal on and normal off mode by TS switch

Control panel specification< LTS-2DPA24200-2S >    

Connection step:
Step 1: Connect the light to the controller (refer to picture 2.1).
Step 2:If external trigger control is required, connect the external trigger to the controller trigger port.
Step 3: Connect power (AC 100-240V 50/60Hz), press the red switch”-”, indicator light up, “O” uplifted, power on.
Step 4: If need to control the luminance by PC, please connect the PC with controller by RS232 data cable or network cable in the power off status, then control by our demo program or the program you write yourself. Can set-up the each channel parameter manual when operated by serial port mode or LAN port mode. That’s to say, the upper computer and controller all can set-up the parameter, no need mode swapping.


Mode set-up

working mode Control method
Normal on model TS up, output is open
Normal off model TS down, output is closed


Trigger port set-up

This series controller is high level trigger. LTS-2DPA24200-2S has a total of 4 trigger signal input ports, representing 2 channels. Each channel has + and -identifiers, and high level 5-24V is input at + and -ports to achieve triggering function.

Trigger inspection: when the controller is in the normal on mode (MANU mode), input high level 5-24V at the trigger port, and the light source is off. When the controller is in normal off mode (REMO mode), input high level 5-24V at the trigger port, and the light source is on.


Common wiring methods of external trigger signals


Sequence chart

Normal on mode (MANU mode):
Input high level 5-24V at the trigger port, and the light source is off.
Normal off mode (REMO mode):
Input high level 5-24V at the trigger port, and the light source is on.


Specification: T1 is trigger delay, T1≤30us,T3≤30us.


Coding rule



Product Model One way output
One way
Max. Output
of channels
trigger voltage
High power constant
current controller
LTS-2DPA24200-1S 0-8A 200W 200W 1 5-24V Have communication,
trigger, luminance
level display function.
LTS-2DPA24200-2S 0-4A 200W 100W 2
LTS-2DPA24400-1S 0-16A 400W 400W 1
LTS-2DPA24400-2S 0-8A 400W 200W 2
LTS-2DPA48600-1S 0-12.5A 600W 600W 1
LTS-2DPA48800-1S 0-16.6A 800W 800W 1
LTS-2DPA481200-1S 0-25A 1200W 1200W 1
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