Technical Manual
–
Central Operation Unit Smart
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Phone: +49-2263-
880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
6
6
Daily/weekly time switch with astro switch function, holiday function and automatic calculation of
public holidays.
Up to 20 functions/channels can be switched with the integrated timer. The timer is a daily/weekly
timer and has an Astro switch function, a holiday function and an automatic holiday calculation. In
principle, the time switch can be used as a master and supplies all other participants with date/time.
The automatic summer/winter time changeover can be set separately, so that in case the time
changeover is abolished, the normal time can be set again at any time. If a timer is already present in
the KNX system, e.g. the IP interface with time server function (SCN-IP000.03), the time switch can
work with the provided system time in slave mode. Each function/channel can be named individually
and can be controlled via the timer function. Per function/channel 6 switching times are possible.
These can be executed daily or on different days within the week.
In addition to selecting the day and time when a function is to be carried out, additional mode
settings and corresponding conditions can also be defined. In addition to the normal standard
parameter of time, sunrise, sunset, dawn, dusk and random are also available for the mode. In
combination with the conditions time shift (+/- up to 2 hours), at the latest by, at the earliest by, or
at /- 10min up to one hour, a multitude of useful functions can be generated. Example see
description Astro switch function
Astro switch function for comfortable blinds / lighting control
The sunrise and sunset times are calculated using the Astro function. Required is the location, either
as location information or by location coordinates, and the date by the timer. The following scenario
is then possible: At sunset, the outdoor lighting is switched on at the right time, the blinds are
lowered in time for the evening before strangers look into the house, and one hour before the blinds
are closed, presence lighting is switched on in the house so that the house looks inhabited even
when absent. At sunrise, the exterior lighting is switched off again early and moves the blinds up in
the morning. In summer, when the sun rises at 5.20 a.m.*, an additional condition determines the
earliest time at which the blinds can be raised, for example 7.30 a.m.. In winter, when the sun rises at
8.30 a.m.*, an additional condition can be used to specify that the blind may move up at the latest by
8.00 a.m., for example. In addition, the presence lighting is switched on and switched off again at
10.00 a.m. when it is bright. This scenario is possible without an external twilight switch and without
a logic module. Various fine tuning of the switching threshold of the sunrise and sunset times is
possible via the
Individual settings sunrise/sunset
parameter.
(* Time examples from June / December of a year)
