Siemens 7LF4 4320 Manual Del Usuario página 6

Programming
A program consists of an ON time, an OFF time and the associated
ON and OFF days.
If you select "MON TO SUN" (Monday to Sunday), the days are
already assigned and you only need to set the ON and OFF times.
If you select "INDIVIDUAL", you can assign the ON and OFF times
to any desired days.
The programs for each channel are linked to one another by
logical OR.
*
*
C HRONO = the switching times are indicated in
chronological order during the week.
INPUT = programs are indicated in the order in which they are entered.
Programming examples
The timer is to switch on at sunset on each day of the week and switch off
at sunrise.
The timer is to switch on at sunset on each day of the week and switch off at sunrise. In addition, it is to be switched off each night bet-
ween 23:00h and 5:00h. This requires the use of two programs.
Program 1: ON at sunset and OFF at 23:00h
Program 2: ON at 5:00h and OFF at sunrise
Prog 1
Prog 2
• Auto – automatic mode
• Permanently ON
• Permanently OFF
• Extra
The switching state defined by the program is
inverted.
At the next effective switching command, the time
switch again takes control of the switching
operations.
7LF4 9401
•
Select the appropriate symbol with the PLUS and
MINUS keys:
ON at sunset
7LF4 9401
OFF at sunrise
ON/OFF at programmed time
•
When this function is activated, the outputs are switched on for one hour.
After one hour, the time switch returns automatically to the programmed mode.
A reset cancels any existing access protection.
Operating modes
Data key
or
Load the programs of the time switch on to a data key (WRITE KEY)
Warning! all programs already existing on the data key will be overwritten.
or
Load the programs from the data key to the time switch (READ KEY)
Warning! all programs already programmed in the time switch will be overwritten.
1 h-test
Pincode (access protection)
Contrast adjustment
Operating-hours counter
This displays the total duration of the
ON times, from 0 to 65535 hours, and
the date on which this counter was
last reset.
Reset
Note!
A reset clears the entire memory,
which means that all previously set data will be
lost.
Press and hold all four keys together for about
2 seconds, then release them.
After a reset, the language, time and date,
summertime, coordinates, time zone,
switching times and pin code must be set again.
Example