Behaviour During Mains Voltage Failure/Power Reserve; Twilight Function - merten 5800 Gebrauchsanleitung

Behaviour during mains voltage failure/power reserve

Astro function - application However, in summer, when the actual
examples time of sunrise is before 6:30 a.m., the
astro function does not intervene, and
Example 1:
the lighting is switched off at 6:30 a.m..
The switching-on time follows suit.
The lighting should be switched off
every day at sunrise:
Example 3:
– Switching time 1: Mon - Sun (Mo-
The lighting should be switched off in
So) 04:00:00 a.m. switch off, astro
the morning at exactly 6.30 a.m.:
function on
and switch on at sunset: – Switching time 1: Mon - Sun (Mo-
– Switching time 2: Mon - Sun (Mo-
So) 4:00 p.m. switch on, astro
and in the evening, should always
function on
switch on at sunset:
– Switching time 2: Mon - Sun (Mo-
Example 2:
The lighting should be switched off in
the morning at sunrise, if sunrise is
|
before 6:30 a.m. in winter, but no later
than 6:30 a.m.:
– Switching time 1: Mon - Sun (Mo-
So) 6:30 a.m. switch off, astro
function on
Behaviour during mains voltage
and in the evening should switch on at
failure/power reserve
7:10 p.m. at the earliest, or later at
sunset, when this is later than 7:10
When the mains voltage fails, the
p.m. in winter:
display – – : – – appears briefly, then
– Switching time 2: Mon - Sun (Mo-
goes out. The switching times that you
So) 7:10 p.m. switch on, astro
have configured, as well as your time/
function on
date and other settings are retained for
In winter, when it is still dark outside at
a period of approximately 24 hrs.
6:30 a.m., the astro function
(power reserve, no batteries required).
intervenes, and the lighting only
When the mains voltage is recovered,
switches off at the current time of
the switching times of the program
sunrise. In winter, it is already dark
memory [A] or [B] that was last
before 7:10 p.m., so the astro function
activated before the mains voltage
causes the lighting to be switched on
recovery are executed. This means that
earlier, at the actual time of sunset.
the load is controlled as it should be
So) 6:30 a.m. switch off, astro
function off
So) 4:00 p.m. switch on, astro
function on
Note: If you do not use astro
function, any morning switching-
on time you set must be a time
when it is dark all year round, i.e.
before 4:00 a.m..
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Twilight function

according to the set switching times.
The most recent "missed" switching
time is made good.
When you have switched on the
For example: twilight function (a moon symbol
Switching time 3: 8:15 p.m. switch on, appears in the display), it will be
Mains voltage failure: 8:10 p.m., activated automatically before the
Mains voltage recovery: 8:20 p.m., calculated time of sunset (see „Astro
Switching time 3 is executed, and the function", p. 31). The time switch then
lighting is switched on. constantly compares the brightness
When a mains voltage failure lasts for value measured by the sensor to the
more than 24 hours, the switching set twilight value.
times, time/date and other settings that
When the brightness value falls below
you have individually configured are
the set twilight value, the moon symbol
lost and must be reset. When
in the display starts to flash. The lights
recommissioned, the time switch is
then switch on after the value has
automatically reset to its standard
remained below the twilight value for
values.
approx. 4 min. This delay prevents the
lighting being switched on by brief
Twilight function
fluctuations in brightness (e. g. caused
Only on time switch with sensor
by shadows or clouds).
connection, when used together with
The lighting is not switched off by
sun/twilight sensor 580691.
means of the twilight function, only
You can use the time switch twilight
manually, or using a set switching time.
function after attaching the sun/twilight
It is useful to use the twilight function
sensor to the window pane. To do this,
when, for example, building work
attach the sensor to the window pane
causes it to seem to go dark earlier
and set your required twilight value
where the sensor is located than
(see „Setting the twilight function",
normally would be precalculated by the
p. 47).
astro function.
| Note: The twilight function is
only activated when a program
memory [A] or [B] is in use (see
„Activating program memories",
p. 35). Additionally, a switching-
on time with astro function must
be saved for every day the
twilight function is to be used for
(e.g. Mon - Sun (Sa-So) 9:00
34
p.m. switch on, astro function
on).