Universal Dimmer UD-700-X2-DALI

The successful and reliable Universal Dimmer UD-700-X2 is now also available with DALI interface. All dimmable light sources (e.g. dimmable LED lamps) can be perfectly dimmed with it. It requires no minimum load and dims flicker-free starting from just one LED retrofit lamp. Even a large number of LEDs is no problem for the dimmer.

Quick Facts

  • 2 channels 700W each or 1 channel 1400W
  • flicker-free dimming of LED lamps
  • automatic load detection
  • suppression of ripple control signals and mains interference
  • oscilloscope function
  • DALI control
  • 1-10V / 0-10V
  • single-button dimmer

The Universal Dimmer with DALI interface is suitable for the reliable operation of high-voltage lamps, magnetic transformers, electronic transformers, ESL and LED retrofit lamps. There are 2 separate dimmer outputs available, each of which can be loaded with 700W. By configuration and parallel connection of the outputs the dimmer is loadable with 1x1400W.
Each channel can be parameterised separately for the corresponding load type (leading edge/trailing edge mode). The dimmer automatically checks the connected load by carrying out a short test after first applying the operating voltage to check whether the connected load can be operated with the desired setting.

The dimmer operates with an internal dimming resolution of 16 bits and thus meets the highest demands.

The factory-set properties such as dimming curves, minimum and maximum limits can be changed and optimised by the user himself.

Control modes of the dimmer:

  • DALI
  • standalone: 0-10V, 1-10V, push-button (single-button dimmer)
  • internal potentiometers
  • to the DALI interface, the internal potentiometers and voltage inputs can be parameterised as priority, merge operation or for the BUS failure.

A free software tool is available for DALI and standalone users. This allows the dimmer to be optimised per parameter via USB or RS-485 data connection and internal data such as temperatures, voltages, peak currents and power to be displayed. An oscilloscope function is also integrated as a new feature. For the first time, the user now has an aid for displaying the current load - without dangerous measurements on the mains voltage!

An inspection of unknown light sources - e.g. new retrofit lamps - is therefore possible without additional measuring equipment. All you need is the connected UD-700-X2-DALI dimmer, a USB cable (USB type A to Micro B m/m) and our free software.


  • lighting control in museums, churches, event rooms
  • dimmer for smart home systems of other manufacturers (e.g. KNX, Loxone, LCN, Wago, Comexio and much more)

Electrical Data

Mains supply 230V / 45 to 65 Hz
Fuse protection 1 x 230V automatic or GL fuse 10A
Output 2 x 230V short-circuit proof, 10W - 700W/VA per channel
or 1x 1400W/VA coupled
Power loss < 0.5 ... 6W (Stand-by ... full load) per channel - total max. 12W at 2x700W full load
BUS interface DALI according to DALI standard IEC 62386
1 (0)-10V Sink current at 1-10V = 0.54mA
Source current at hardware option "0-10V" = 0.14mA at 71kOhm
Insulation voltage 3500V (DALI-BUS / mains)
Short-circuit protection electronic overload protection by current measurement
short-circuit cut-off within 10 milliseconds
Connection screw terminals 1.5mm² pluggable
Operating temperature -10...+45°C
> at +50°C max. 60% connectable power
> at +55°C max. 50% connectable power
> at +60°C max. 30% connectable power
Storage temperature -25...+70°C
Humidity 0...85 % r.h. non-condensing
Protection class IP 30
Protection class I

Design, Dimensions, Weight

Design DIN rail housing
Dimensions WxHxD 106x90x59mm DIN rail mounting (6 HP)
Weight 300 g

Ordering Data and Conformity

Type designation UD-700-X2-DALI
Article no. 80026504
Make ISYnet
Conformity CE

DIP switches in DALI operation

DIP switches in stand-alone operation

Setting options for the DIP switches

FunctionOperating mode
U input 1-10VControl via digital potentiometer from switch manufacturer, or 1-10V dimmer coupler (behaves like an ECG from fluorescent lamps - the 10V for the 1-10V dimming is supplied by the dimmer)
U input 0-10VControl via external control e.g. PLC with 0-10V (0-10V voltage is supplied from the PLC)
A/B/C/DSee table below
ReserveNot assigned in this operating mode
Channel 1+2 coupledThe dimmer works 1-channel, power 1x1400W; bridge between outputs LD1 and LD2 required
Channel 1+2 separatThe dimmer works 2-channel, power 2x700W; the LD1 and LD2 outputs must not be connected together
Single-button dimmerControl via standard keys on terminals UE1 and UE2 against GND
press briefly = On/Off, press longer = dim
Analog 0(1)-10VAnalog control - in this position the DIP switches 3 are enabled for the selection 0-10V or 1-10V


A/B/C/D DIP switches - operating mode setting for DALI and stand-alone operation

DIP-ADIP-BOperating mode
OFFOFFAutomatic operating mode switching, the start value is predefined with the PC program on the "General" tab.
ONOFFTrailing edge
OFFONLeading edge
DIP-CDIP-DSetting dimming characteristics such as min-max values, curves, etc. (see PC program for the UD-700-X2)
OFFOFFParameters of the 1st column ("General" in the PC program)
ONOFFParameters of the 2nd column ("General" in the PC program)
OFFONParameters of the 3rd column ("General" in the PC program)
ONONParameters of the 4th column (with preheating setting for ESL)
("General" in the PC program)

Function Indicators (LEDs on the Module)

redOffPOWERNo operating voltage
ONOperating voltage, no error voltage supply
blinkingToo high mains voltage (> 400Vs)
3x blinkingNo valid parameters available
yellowOffBUSError in BUS wiring / no BUS signal detected
ONDALI signal is detected
2x greenOffD1, D2Output "OFF", no error
ONOutput "ON", no error
blinking evenlyWarning/switching off when temperatures are too high:
Communication processor: 65°C / 75°C
MOSFET housing: 95°C / 105°C
1x blinking + pauseMessage in case of overload:
1. If the max. permissible peak current is exceeded ( > 15A)
2. If the limit values for power loss ( > 8W/channel) or peak current ( > 10A) are reached
2x blinking + pauseMessage after switch-off at voltage peaks > 450V
3x blinking + pauseFailure of communication with dimmer processor


Parameterisation with ProgramDesigner

The Universal Dimmer can be conveniently parameterised via USB using the software tool

Here the description of the software

Examples of parameterisation options:

  • parallel connection of the outputs from 2x 700W/VA to 1x 1400W/VA
  • leading edge or trailing edge control
  • setting the dimming curves
  • feedback of dimmer status (diagnostic messages)
  • emergency operation in case of BUS failure

Pin Assignment

7-pole plug left

GND Reference potential (ground) for voltage inputs (0-10V) and BUS RS485 (internally bridged with seventh terminal)
UE1 Control voltage input for dimmer output LD1 (emergency function)
UE2 Control voltage input for dimmer output LD2 (emergency function)
+10V Power supply for external potentiometer(s)

6-pole plug right

LD1 Dimmer 1 load output 0...230V max. 700W/VA leading edge/trailing edge
LD2 Dimmer 2 load output 0...230V max. 700W/VA leading edge/trailing edge
L Mains voltage 230V (45Hz-65Hz)
N Neutral conductor
N Neutral conductor
PE Protective conductor

More Information under the following Links

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Additional Equipment

  • USB cable


Interface DMX and ISYGLT: UD-700-X2


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Article no.: 80026504

The successful and reliable Universal Dimmer UD-700-X2 is now also available with DALI interface. All dimmable light sources (e.g. LED lamps) can now be perfectly dimmed. It requires hardly any minimum load and often dims flicker-free even from an LED retrofit luminaire. Even a large number of LEDs is no problem for the dimmer.

+ shipping costs
  • kostenlose Anfrage / free request
    from 1 € 0.00 € 0.00 Incl. 0.00% VAT


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