Technisches
Manual
Weather
station
SCN
‐
WS3HW.01
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de
21
The
function
of
the
facade
control
is
illustrated
in
the
following
diagram:
Illustration:
10
Diagram
facade
control
The
diagram
shows
an
overstepping
of
the
threshold
values
and
the
reaction
of
the
blinds
to
a
facade
control.
Additional
a
minimum
of
period
for
the
exceedanvce/undercut
is
shown
exemplarily.
The
faced
control
starts
as
soon
as
the
measured
brightness
value
is
higher
than
the
upper
limit
of
the
first
threshold.
From
now
the
measuring
of
the
time
for
the
threshold
starts.
If
the
sensor
measures
an
exceedance
for
the
adjusted
time,
the
adjusted
function
for
the
exceedance
of
the
threshold
will
be
performed.
In
this
case
the
blinds
are
moved
to
50%.
The
blinds
stay
on
this
position
until
the
sensor
measures
an
exceedance
of
the
second
threshold
for
the
adjusted
time.
Now
the
blinds
drive
to
70%.
If
now
an
undercut
of
the
lower
limit
of
threshold
2
is
measured
for
the
adjusted
time,
the
first
trehold
will
be
active
and
the
blinds
will
drive
to
50%.
The
blinds
stay
in
this
position
until
the
undercut
of
the
lower
limit
of
threshold
1
is
measured
for
the
adjusted
time.
The
following
areas
are
valid
for
the
activation
of
the
facade
control:
Action
of
treshold
1:
upper
limit
(treshold
2)
–
upper
limit
(treshold
1)
Action
of
treshold
2:
upper
limit
(treshold
2)
to
infinity
The
following
areas
are
valid
for
the
deactivation:
Abolishment
treshold
2:
Undercut
lower
limit
of
threshold
2
Abolishment
treshold
1:
Undercut
lower
limit
of
threshold
1