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Dimmer

Dimmer1B stands for Dimmer controlled with one button (when dimmer is off, press once briefly to go to the start value (default 100%) and press a second time to turn off the output, or keep pressing the button to select the desired light level.

Dimmer2B stands for Dimmer controlled with 2 buttons. Dimmer2B (Up) I/O and Dimmer2B (Down) kan be assigned to two buttons or inputs.

Qbus System Manager III Manual Update 04 2025 pdf image 279
  • DimMin: This is the minimum level at which you want to set the I/O. Some LED lamps do not give any light or give a flickering effect when they are burning less than a certain percentage. Then set the minimum to this value. When the dimmer dims, the I/O will immediately be sent from 0% to the minimum and then fade in to the desired value. When pressing for a long time, the I/O will stop at the minimum when dimming down. Only a short pulse will turn the I/O off completely.
  • DimMax: This is the maximum level at which you want to set the I/O. In some places it is sometimes desirable to limit the full light intensity. The I/O can never be set higher than this value.
  • DimStart: Here you can set the level when switching on via a short pulse or via binary logic. The bistable I/O "Dimmer-Day Clock" can also determine 2 options (Start during 'day' and start during 'night'). See also Setup
  • Memory function: When this is checked, the dimmer will not go to the DimStart value when switched on by means of a short pulse, but to the last value if this was greater than 20%.
  • Fade In / Fade Out: time required to go from 0% to maximum or from 100% to minimum when the dimmer is controlled via a mood or a TimeOff
  • TimeOff: after you have pressed the key briefly, it takes the time in seconds or minutes (click the "Sec" key if you want to switch to minutes and vice versa) shown under TimeOff, before the dimmer fades out (depending on the time duration set for Fade Out)

 

Also see Global I/O parameters