Human Centric Lighting (HCL)
The following functions must be activated in the settings under HCL.
Up to 24 interpolation points are possible per day. Fixed times can be entered and in addition the calculated sunrise and sunset can be referred to for the color temperature adjustment. All interpolation points are driven to linearly in relation to the steps. The color temperature can be fixed via manual operation by means of a slider. The color temperature applies to all lamps (broadcast).
The times for this are calculated on the basis of the date and the specified longitudes and latitudes (see Settings). The currently set process, the current time and the calculated sun values are illustrated in the diagram.
With regard to the possible times for sunrise and sunset, try to enter season-independent values if possible in order to avoid ups and downs of the color temperature.
After closing the dialog box, the table sorts itself in chronological order.
The dimming position changes the output value of a group proportionately – provided it has HCL dimming position activated. In the Fixed Control mode the control value is influenced and in the Daylight Control mode the setpoint is changed accordingly.
According to current studies, TunableWhite only becomes genuine Human Centric Lighting through the dimming position. The desired HCL effect is only made possible by the color temperature and the matching luminous intensity.
Time configuration dialog:
(1) End time when the color value should be reached. This is at the same time the start point for the next interpolation point. Not required if sunrise or sunset is selected.
(2) The color value may be set between 2700 and 6500 Kelvin.
(3) Reduces/increases the control value/setpoint of all groups. Provided HCL dimming position is activated for each group.
(4) Set the time to sunrise.
(5) Set the time to sunset.
(6) Determines the control time (after sunrise/before sunset) to the desired color temperature. Can be used to artificially prolong the effect.
(7) Activate schedule.