Dimming

The "Dimming" sensor function can be configured for the "Push-button" sensor type. The ETS indicates up to four communication objects for the "dimming" function. The parameters can be used to determine the value the objects "Dimming - ..." obtain when the button is pressed. A disabling function can also be activated.

Generally, the device transmits a switching telegram after a brief actuation and a dimming telegram after a long actuation. In the standard parameterisation the device transmits a telegram for stopping the dimming action after a long actuation. The duration of pressing the button between switching and dimming is 400 milliseconds in the default parameterisation and can be set in the advanced parameters. The brightness or the colour temperature can be dimmed.

Status

If an actuator is controlled by multiple control points, the actuator must report its switching status back to the 1-bit object "Dimming - Switching - Status" of the channel. Due to the feedback, the device detects that the actuator has changed its switching status by input from another element and adjusts the dimming direction accordingly. The status is visible only if switchover commands are set.

Advanced configuration options

The device has advanced parameters for the dimming function. If necessary, these advanced parameters can be activated and thus be made visible.

In the continuous dimming mode (100%), the device transmits a telegram only at the beginning of the long press to start the dimming process and generally a stop telegram after the end of the press. For dimming in small levels it may be useful if the device repeats the dimming telegram in case of a sustained press for a time that can be set (parameter "Telegram repetition"). The stop telegram after the end of the press is then not needed.

The following settings are made if the advanced parameters are switched to invisible (advanced parameters = inactive):

• Time between switching and dimming = 400 ms

Depending on the telegram utilisation of the DALI system, times shorter than 400 ms may lead to incorrect evaluations of button actuations.

• Dimming ranges = 100 %
• Stop telegram = active
• Telegram repetition = inactive