This single-channel dimmer is designed for smooth control of electrical load (non reactive load).
It has 3 input channels for connecting buttons and reed switches. MOSFET type.

Example of connection.

hw="in='BBB' dm='G'"

Module parameters

Parameter name Value
Output channels qty 1
Input channels qty 3
Input voltage 100-250 V 50Hz
Current type AC
Max load 0.9 A(200W at 220V)
Min load 0.09 A(20W at 220V)
Power supply 11.5 … 27.5 V DC from CAN
Max current(24V) 40 mA
Temperature sensor line max length 0.3m
Bus type CAN (4-wire)
Mounting Free
Case material ABS
Protection IP40
Temperature range -10 … +50 °C
Size 45x42x14 mm
Weight 25 g

Supported load types

Supported load types Power
Conventional incandescent lamps 20-200W
Halogen light sources 20-200W
LED lamps with dimming support 20-200W
Energy saving lamps with dimming support 20-200W
Electronic ballasts with dimming support 20-200W


Module installation and connection procedure

  1. Connect the outputs.
  2. Connect the inputs.
  3. Connect the Can connector.
  4. Configure the module using LT setup.
  5. Apply power to the load.
  6. Check all equipment for proper operation.

Module shut-off and deinstallation procedure

  1. Disconnect the power from the load
  2. Disconnect the CAN connector.
  3. Disconnect the inputs.
  4. Disconnect the outputs.

DM wrokflow

Dimmer workflow

Linear, LED and Halogen workflows

HW Settings

Name Type, range SUBID Default Description
def integer 0-250 1 100 The default brightness level in case of a power reset (1..250). Example: def=250
min integer 0-100 1 0 Minimum dimming level, example: min=10
max integer 0-100 1 100 Maximum dimming level, example max=95
start integer 0-100 1 0 The Start function is used for lamps that lack the minimal voltage to get turned on. If the set value is lower than the start value, the lamp is turned on at the start value and them the light is dimmed down to the set level. Example: start=60
force integer 0-100 1 10 Time duration of the starting value (measured in milliseconds). Example: force=20
runtime integer 0-60000 1 1000 Runtime is the speed of changing the brightness from ‘min’ to ‘max’ (measured in milliseconds). Example: runtime=1000
protect integer 0;1 1 0 Overload Protect. 0(off); 1 (on), example: protect=0
offset float(+/- 0…39) 30 0 sensor values offset;
For example, offset is -3.8 :

mode string 98 disabled  Frequency of pulse-width modulation in Hz for item with direct current.

  • dc100 – 100Hz
  • dc200 – 200Hz
  • dc400 – 400Hz
  • dc800 – 800Hz

Example: mode='dc400'

dm char 98 'g' Each char is responsible for the type of a particular channel

  • 'g' – use like halogen dimmer-lamp
  • 's' – Soft Switch, lamp, when on/off power is supplied/deenergised smoothly (500msec)
  • 'k' – Switch, lamp, when on/off power is supplied/deenergised immediately
  • 'l' – LED Function, dimmable LED lamps
  • '-' – Channel disabled
  • '+' – Regular channel
  • Example: dm='s'

in char[3] 98 'BBB' Each char is responsible for the type of a particular channel

  • 'B'-Button, a bell type;
  • 'C'-Inverted button, inversebutton of a bell type (for normally-closed);
  • 'D'-Backlit button, illuminated button;
  • 'E'-Inverted backlit button, inverse illuminated button;
  • 'S'-Switch, fixed switch;
  • 'K'-Contact, reed contact;
  • 'H'-Inverted contact, inversereed contact;
  • '-'-none, nothing is connected.

And you can also connect one temperature sensor:


Example: in='BCB'

		<item addr="491:1" auto-period="600" cfgid="72" name="Dimmer" hw="def=200 min=30 max=88 start=35 force=20 runtime=1000" type="dimer-lamp" uniq_id="4610"/>
		<item addr="491:11" cfgid="72" name="Switch" type="switch" uniq_id="4611"/>
		<item addr="491:12" cfgid="72" name="Switch" type="switch" uniq_id="4612"/>
		<item addr="491:13" cfgid="72" name="Door" type="door-sensor" uniq_id="4616"/>
		<item addr="491:97" cfgid="72" name="Temperature" system="yes" type="temperature-sensor" uniq_id="4614"/>
		<item addr="491:98" cfgid="72" hw="dm='G' in='BSH'" name="Temperature" system="yes" type="temperature-sensor" uniq_id="4615"/>