LED Dimmer LED-04E-DMX-350-24V

DMX LED Dimmer with 4 outputs for current-controlled LEDs 1-5 pieces each in series (12-24V supply).

Quick Facts

  • 350mA constant current
  • 1-5 LEDs per output in series
  • dimming 0-100%
  • protocol DMX-512
  • OVERSAMPLING error correction

The LED Dimmer was developed for the control of LED lights with constant current. It can also be used for LED stripes/tiles with a voltage-controlled DIMM interface. This makes it possible to control the brightness of the LEDs between 0 and 100% absolutely flicker-free with a dimming resolution of 12 bits (internal resolution at DMX operation).

OVERSAMPLING error correction: With the so-called "OVERSAMPLING", the dimmer automatically corrects the jumps in the dimming values caused by the cycle times of the BUS system. For this purpose, the dimming values between the BUS cycles are converted into the resolution of 12 bits for the cycle time by linearisation. This avoids, for example, flickering when controlling LEDs via a potentiometer via a BUS interface.

Electrical Data

Operating voltage 10V to 24V DC impulse-proof for Power-LEDs
Current consumption max. 50mA without LED load, back-up fuse max. 10A
Output power 4 circuits with 350mA each for 1-5 pieces LEDs 1W in series (- control)
BUS control DMX-512
Cable length power supply to LED dimmer max. 40m at 1.5mm²
Cable length LED dimmer up to the last LED max. 50m
Mounting lamp installation
DMX BUS (RS-485) galv. separated from power supply + LED, max. 6V limitation by suppressor diodes
Connection screw terminals BUS/power supply 1.5mm², LEDs 0.75mm²
Ambient temperature max. +50°C
Storage temperature -25...+70°C
Humidity 0...85 % r. h. not condensing
Protection class in not installed state IP 10

Design, Dimensions, Weight

Design plastic housing for installation in a lamp or a separate housing
Dimensions LxWxH 140x35x27mm
Weight 80g

Ordering Data and Conformity

Type designation LED-04E-DMX-350-24V
Article no. 80100245
Make ISYnet
Conformity CE

DIP switches DMX-512 operation

DIP 1DMX-512 protocolON = fade time is fixed at 100ms
OFF = fade time is calculated from BUS cycle
DIP 2Address bit 9DMX start address (highest bit)
DIP 3Address bit 8DMX start address
DIP 4Address bit 7DMX start address
DIP 5Address bit 6DMX start address
DIP 6Address bit 5DMX start address
DIP 7Address bit 4DMX start address
DIP 8Address bit 3DMX start address
DIP 9Address bit 2DMX start address
DIP 10Address bit 1DMX start address (lowest bit)


Example of address setting

DIP switchesOutput
Address     1000000001DMX channels 1, 2, 3 and 4
Address   10000001010DMX channels 10, 11, 12 and 13
Address 127001111111DMX channels 127, 128, 129 and 130

At higher switch positions the address is always limited to channel 509 (output DMX channel 509, 510, 511 and 512).

Function Indicators (LEDs on the Module)

orangePOWEROffNo operating voltage
ONOperating voltage, no error
yellowBUSOff / OnError BUS
blinkingInterference-free data transmission via the BUS line
greenOutputsOffAll channels switched off
ONAt least 1 channel switched on

Pin Assignment

From serial number 000064 the layout has been changed!
Cathode and anode are changed!

Terminals LED side (serial number 000064 and up)

K1-K Cathode (-) for LED 1
K1-A Anode (+) for LED 1
K2-K Cathode (-) for LED 2
K2-A Anode (+) for LED 2
K3-K Cathode (-) for LED 3
K3-A Anode (+) for LED 3
K4-K Cathode (-) for LED 4
K4-A Anode (+) for LED 4

Terminals LED side (up to serial number 000063)

LED1-A Anode (+) for LED 1
LED1-K Cathode (-) for LED 1
LED2-A Anode (+) for LED 2
LED2-K Cathode (-) for LED 2
LED3-A Anode (+) for LED 3
LED3-K Cathode (-) for LED 3
LED4-A Anode (+) for LED 4
LED4-K Cathode (-) for LED 4

Terminals BUS side

+Ub Operating voltage
GND Operating voltage
A (BUS A, RS-485) DMX+
A (BUS A, RS-485) DMX+
B (BUS B, RS-485) DMX-
B (BUS B, RS-485) DMX-

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