memo AST1
Mod.
Vemer S.p.A.
DIMENSIONS
65
35
CONNECTION DIAGRAMS
DISPLAY AND KEYPAD DESCRIPTION
Field "text1 / day"
Field "text2 / date"
Field "relay status"
Field "time"
Field "lock"
Field "day of the week"
Field "vacation program"
Field "CET/DST"
Field "key functions"
C1
C2
Ok
R
" "
"Ok"
"C1"
lock channel 1
"C2"
"R"
PRESET PROGRAM
ON
P1
OFF
Sunset
Sunrise
User manual
ASTRONOMICAL TWILIGHT SWITCHES
Read all instructions carefully
The memo AST1 is a digital programmable switch used to manage electric utilities between
the hours of sunset and sunrise, which are automatically calculated by the instrument based on
the geographical coordinates inserted.
The cover on the back of the instrument makes it possible to replace the battery when it is run
down, whereas the integrated IR receiver makes it possible to exchange programs between the
instrument and the remote control.
SAFETY WARNINGS
1) The instrument must be installed and activated by qualified personnel, following
the connection diagrams provided in this manual scrupulously.
2) After installation, it must be made impossible to access the terminals without
specific tools
3) Before accessing the connection terminals, verify that the leads are not live
4) Do not connect or power the instrument if any part of it is damaged
5) The instrument must be installed and activated in compliance with current electric
systems standards.
6) Do not use the instrument for purposes other than those indicated
Code
Model
Description
VE344800
memo AST1
Astronomical twilight switch 1 relay
TECHNICAL CHARACTERISTICS
INSTALLATION
Remove the battery from its package and insert it in the housing on the back of the instrument
so that the (+) pole is visible as shown in the "Battery replacement" box. Then
secure the cover, turning it clockwise.
"R" key to reset it.
The display segments will turn on for a few seconds, then the instrument will switch to IR
" "
remote control, see the "IR interface"
language, date format, date, time, geographical coordinates and any corrections
Setting the language
Italian, English, Spanish, French, German.
Select the language with "C1" and "C2".
"Ok".
C1
C1
C1
C1
Setting the date format
It is possible to select between the dd-mm-aa and
yy-mm-dd formats.
Select the format with "C1" and "C2".
"Ok".
C1
Setting the date
being changed will flash.
Select the desired value with "C1" and "C2".
"Ok" to confirm and continue
with the next parameter
month
day
a bar with the corresponding day of the week
Setting the time
Select the desired value with "C1" and "C2".
"Ok" to confirm and continue
with the next parameter
minutes
Setting the coordinates/province capital
to automatically calculate the sunrise and sunset times for each
day during the year. The menu changes depending on the set
the province abbreviations followed by the full name, possibly
Select the province with "C1" and "C2".
"Ok" to confirm
- latitude
- longitude
on the latitude and longitude values; this
value may be changed using the "C1" and
"C2"
phase do not enter a correction, leave the two
"Ok"
At this point, the instrument will switch to the normal operating
day the following message will appear on the top row
In this condition backlighting is not active and the relay will
remain off.
C2
MANUAL OPERATION
Switching on/off manually
C2
"C1" key briefly to switch the output relay. The status
C2
that is reached will be maintained until the next program event.
Switch lock
C2
Activating the lock function, all switches are ignored. The relay
remains in the status in which it was found when the lock was
set.
"C1"
function
If the function is active, the following symbol will appear .
C2
AUTOMATIC OPERATION
1. Creating a HOLIDAY program
Ok
" "
"C1" and "C2"
Ok
and confirm with "Ok"
"C1" and "C2"
and confirm with "Ok"
with "C1" and "C2"
included in the holiday period
Ok
"Ok" to confirm
message will appear on the display
execution of a holiday programme is signalled
by the symbol
Note: recursive function
At this point, the instrument activates the recursive
function that makes is possible to program multiple
holiday days in series (or holiday periods).
If you do not want to enter another holiday day (or period)
press " " to end programming.
The correlation of the programmed holiday events is not
controlled with the recursive function: the function must
therefore be considered as facilitated programming.
Ok
holiday days.
holiday days.
Ok
will cause the following message to be displayed
will cause the following message to be displayed
program stored in the memory must be deleted before entering a new one.
program stored in the memory must be deleted before entering a new one.
Ok
The message
The message
appears on the display if you try to enter a holiday period that
appears on the display if you try to enter a holiday period that
overlaps with a period that was already entered, or if the last holiday date is before the
overlaps with a period that was already entered, or if the last holiday date is before the
Ok
start date.
start date.
2. Checking a program
This menu can be used to display, modify or delete a holiday program saved in the instrument.
2.1 Displaying a program
" "
with "C1" and "C2"
"Ok"
.
confirm
"Ok" to confirm
Main page
"Ok" to confirm
the programs using "C1" and "C2" keys. In case of
of the first holiday period, press "C2"
end of the period.
At this point, pressing "Ok" it is possibile access to
options of modify, delete or next holiday period.
2.2 Changing a program
A program can be changed from the program display status.
Select the holiday program to change and press "Ok"
"C1" and "C2" and press "Ok" to
confirm
At this point, new program parameters can be entered. The
"C2" to set the values and press "Ok" to confirm or " " to
exit without changes.
to normal operation.
C2
"Ok"
C1
.
. In this case, a
. In this case, a
"Ok" to
C2
C1
"C1" and
is displayed and the instrument will return
Need help?
Do you have a question about the memo AST1 and is the answer not in the manual?
Questions and answers