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AlphaRex
digital time switches
3
Brief description of programming functions
Weekly programs
To create a weekly program, select "MENU", "PROGRAM", and then "CREATE" to easily enter programs which are repeated on a weekly basis.
A weekly program consists of a switch-on/switch-o times and days which are assigned as "switched-on" or "switched-o ". The following
predefined blocks can be selected: "MONDAY – SUNDAY", "MONDAY – FRIDAY"
fixed. The switch-on/switch-o times must be entered. The user can also set custom day blocks. By selecting "CUSTOM", switch times can be
freely assigned to any days of the week. This option also allows the user to set switch times at midnight.
Excluding AlphaRex³ DY, AstroRex DY64
1)
Yearly programs [AlphaRex
3
This menu item allows the user to enter (additional) yearly programs, which are only executed within a defined validity period. They can overlap with
one another and with the weekly programs on the same channel based on an "OR" connective. The validity period is defined by entering the start
date (at 00:00:00) and the end date (at 24:00:00). The start date must be entered before the end date. With the "EVERY YEAR" option, the
additional switch times have the same validity period each year (Christmas, national holidays, birthdays, etc.) Select the "ONCE" option when
additional switch times are needed within a validity period (e.g. during holidays), but the start/end dates of
year.
Special programs (priority program) [AlphaRex
Weekly and yearly programs on the same channel are not executed during the validity period of a special program. However, other special
programs can be executed during the validity period. Di erent special programs can overlap with each other based on an "OR" connective. With
the "EVERY YEAR" option, the additional switch times have the same validity period each year (Christmas, national holidays, birthdays, etc.). Select
the "ONCE" option when additional switch times are needed within a validity period (e.g. during holidays), but the start/end dates of the holiday
period change from year to year. Additional options include "MON TO SUN"/"CUSTOM": the respective channel only switches according to the
special program; "PROG ON"/"PROG OFF": the respective channel is switched on/o during this time period.
Basic functions for "astro"
Location (astro) [AlphaRex
D21 astro, AlphaRex
3
The sunrise/sunset times, which change daily, are calculated for the location programmed in the AlphaRex. The unit is delivered with the location
set to "GERMANY – SOEST" by default. Enter the actual location for optimal operation. This can be done in two ways. Select "MENU", "SET" and
"ASTRO" to access the two options "LOCATION" and "COORDINATES". "LOCATION": With this menu item, the user can select the country and city
which is closest to the site of operation. "COORDINATES": Alternatively, the user can select this menu item to set the geographical coordinates of
the location. The longitude and latitude values are entered in degrees or degrees and arcminutes
Information on coordinates and time zones can be found in the time zone map included with every time switch.
Offset
By selecting "MENU", "SET", "ASTRO" and "OFFSET", time di erentials can be set for the calculated switch times. This can be done in two ways:
time o
In time o
, a time di erential can be entered to shift the switch time by up to +/- 120 min relative to the sunrise/sunset times.
In angle o
, a value can be entered in degrees and arcminutes to shift the switch time by up to +/- 12° 00´ relative to the sunrise/sunset times.
2)
The time di erentials are set separately for sunrise and sunset using the menu items "SUNSET" (opens the screen for setting the sunset o
"SUNRISE" (opens the screen for setting the sunrise o
t
0h
3
6
9
12
1
+
0
max. ± 120min
Example:
For a time di erential of +30 min, the time switch switches
30 min. after sunrise and 30 min. after sunset.
For a time di erential of -30 min, the time switch switches
30 min. before sunrise and 30 min. before sunset.
Offset correction function
2)
Select "MENU", "SET", "ASTRO" and "CORRECTION" to set a time correction for the 6-month periods surrounding summer and winter. The time
correction is set to 0 min. by default and can be set from 1 min. up to 30 min. The time correction for sunset is entered in the "SUNSET" menu item.
The time correction for sunrise is set in the "SUNRISE" menu item. The correction function overlaps with the calculated astronomical switch times,
including the o
s.
Example:
Setting a time correction extends the daily switched-on time by up to 60 min. in the middle of the six winter months (switches o up to 30 min. later
in the morning and switches on up to 30 min. earlier in the evening). In the middle of the six summer months, the time correction reduces the daily
switched-on time by up to 60 min. (switches o up to 30 min. earlier in the morning and switches on up to 30 min. later in the evening). The time
correction varies continuously between the two max. values during the rest of the year.
Basic settings using a PC and day key
All of the basic settings described above, with the exception of the current time and date, can be set up using the AlphaSoft software from
Legrand and imported to the time switch using the data key.
DY21, AlphaRex
DY22]
3
DY21, AlphaRex
3
D22 astro, AlphaRex
3
15
18
21
24h
+
max. ± 120min
2)
or "SATURDAY – SUNDAY",
1)
DY22]
3
DY21, AlphaRex
3
3
+12˚
+6˚
0h
3
6
-50'
-6˚
-12˚
1
+
0
Note:
If the o
points when the brightness is the same, despite the fact that the
twilight duration changes over the course of the year. Sunrise and
sunset correspond to -50' for the centre of the sun (the edge of
the sun is visible on the horizon).
Excluding AstroRex DY64
; the assigned days of the week are
1)
the holiday period change from year to
DY22]
(precision can be set in expert mode).
2)
9
12
15
18
21
24h
+
s, the time switch always switches at
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