AU (Automatic) = fixed changeover
The S/W time changeover is performed on the basis of a predefined
calendar program which is permanently programmed up until the year 2079
and cannot
be changed.
(Statutory summer time ruling of the European Union and Switzerland).
Start of summer time: Always the last Saturday in March.
The hour is advanced by one hour from 2 to 3.
End of summer time: Always the last Saturday in October.
The hour is moved back by one hour from 3 to 2.
cHA (calculated semi-automatic) =
freely selectable changeover with weekday reference
You enter the valid summer time starting date for your country (e.g. date of
the last Friday in April of the current calendar year) and also the date on
which summer time ends (e.g. date of the first Tuesday in October of the
current calendar year).
The program automatically assigns to this date the correct day of the week
(in this case Friday and Tuesday).
In the subsequent years, the time changeover always takes place on the
calculated day of the week, irrespective of the date (in this case the last Friday
in April and the last Tuesday in October).
HA (semi-automatic) =
freely selectable changeover with date reference
You enter the valid summer time starting and end dates for your country.
In the subsequent years, the time changeover always takes place on the
same date.
Activation of the automatic summer time/winter time
changeover function
A requirement for the automatic S/W time changeover is, that the current date
is entered.
If the time switch is set to AM/PM, the month is set with the key "h+" and the
date is set with the key "m+".
Operating Instructions
WA-EKF 3047/S:MMS/D:Ko/80.10.0737.7
1. Putting into operation
Electrical units may only be installed and assembled by a skilled electrician.
(The term "skilled electrician" is defined in VDE 0105).
Notes:
The unit contains well-designed electronic components which are largely protected
against external interference. However, it must be remembered that extremely high
interference voltage peaks can be superimposed on the mains voltage, depending
on the installation site. Interference which, despite all internal protective measures,
can also effect an electronic unit also arises when contactors are switched. In order
to guarantee the greatest possible operational reliability, the following details must
be observed:
a) In the case of larger systems, a suitable varistor or RC element must be used to
provide interference suppression for contactor coils directly switched by the
time switch.
b) If inductive direct current loads are switched, a suppressor diode must be
installed.
c) Inductive loads and particularly fluorescent lamps place particular demands on
the output contacts. In each individual case, check whether it is appropriate to
install an isolating relay or contactor.
2. Assembly and connection
Refer to the unit imprint/circuit diagram for connection details.
GB
3 Operating the time switches
The steps marked with the symbol are necessary to carry out a switching
program.
3.1 Reset
Press the "Reset" key with a pencil or similar object.
This sets the time switch to its basic setting.
– before every restart
– to delete all switching times and the time
3.2 Entering the time and current day of the week
After pressing the "Res" key (see 3.1):
During the summer time period: press the "±1h" key once
Keep the " " key pressed during steps
,
and
.
With the "h+" key: enter the hours
With the "m+" key: enter the minutes
With the "Day" key: enter the current day 1= Mo ... 7 = Su
Release the " " key
The colon now flashes at one second intervals.
Note
:
If the "h+/m+" keys are pressed for longer than 2 seconds,
the display will enter fast-forward scroll mode.
The following appears after approximately 2 seconds:
3.4 Free channel block formation
The channels 1 and
2 or 1 or 2 can be assigned as required to every
switching command " " or " ".
Reselect the deselected day with the "Day" key
(day of the week and cursor flash).
Confirm this day with "Sel." (cursor flashes).
Press the "Day" key (day is reselected).
Save with the "Prog." key
(the next free memory location is displayed)
or
Save with the " " key.
If you have deselected a day on which the switching command should be
carried out,
3.3 Entering the switching times
42 memory locations are available.
Each switching time occupies 1 memory location.
Keep pressing the "Prog." key until a free memory
location "– – : – –" is shown in the display.
Select the switching functions " " (ON) or " " (OFF)
with the " " key for channel 1 or 2 (depending on the version).
With the
"h+"
key: enter the hours
With the
"m+"
key: enter the minutes
If a switching command is to be executed every day, proceed with step
.
If 1 switching command is to be executed only on one day or on certain
days skip step
and continue with step
.
Save with the "Prog." key or
With the "Day" key, select 1 day on which the switching
command is not
to be carried out (cursor flashes)
Confirm this day with the "Sel." key
(day of the week and cursor flash)
Press the "Day" key (day is deselected).
Repeat steps
,
and
for every day to be deselected.
Save with the "Prog." key
(the next free memory location is displayed)
or
Save with the " " key.
The time switch goes over to automatic mode and displays
the current time.
Begin every additional switching time and the associated
switching state = ON or = OFF again with 3.3.
Note:
If an input is incomplete, the segments still not selected are displayed
flashing.
4. Additional functions
4.1 Manual summer time and winter time setting
● Press the "±1h" key once.
Automatic Mode Manual Mode
Continuous Operation
= ON
= OFF
= OFF
= ON
= Continuous ON
= Continuous OFF
The switching If the current switching You can only return to
times correspond state is changed automatic mode from the
to the entered manually, the next and switching
program. switching command is modes by pressing the
again executed auto- " " key.
matically according to
the entered switching
program
4.4 Reading the programmed switching times
Press the "Prog." key several times:
– displays all entered switching times starting with the first memory
location.
– the first free memory location "– – : – –" is then displayed.
– the number of memory locations still free is then displayed
If the memory locations are occupied, the following appears in the
display: "FR "
Press the " " key:
The time switch changes to automatic mode and displays the current time.
4.6 Deleting individual switching times
Keep pressing the "Prog." key until the switching time to be deleted is
displayed
Set to "– –" with the "h+" or "m+" key and then press the " " key for
about three seconds.
The switching time is deleted and the current time is displayed
after the key is released.
4.7 AM/PM time display
If the "±1" key and the "h+" key are pressed simultaneously, the time display
is switched to AM/PM mode (used mainly in English-speaking countries).
4.2 Automatic summer time/winter time changeover
The following 3 changeover variants are available:
Display
– with key "h+"
enter the current date, e.g. 09
– with key "m+"
enter the current month, e.g. 02
Display
– enter the current year with
the "m+" key
– select the required variant with
the key "m+"
Press the key "±1h" once
Display
activate
AU (Automatic)
with the key " "
The time switch changes
to the current operating state
Display
Press the key "±1h" once
– enter the summer time starting date
with "h+" and "m+"
(e.g. 28:04)
Display
Press the key " "
– enter the end of summer time with
"h+" and "m+" (e.g. 26:09)
The time switch changes to the
current operating state
Press the key "±1h" once
(only if mode cHA or HA is required)
Entering the current date
Press the keys "±1h" and "➜Day" once simultaneously.
Reading the entered data
Press the keys "±1h" and "Day" once simultaneously.
Pressing the key "±1h" several times allows all entered data to be read
in turn
The key " " allows you to return to the current operating state at
any time.
Changing the entered data
Changes can only be carried out in the variants cHA and HA.
Press the keys "±1h" and "Day" once simultaneously
Press the key "±1h" twice
Select the variant cHA or HA with the key "m+"
Alter the changeover times as described in Figs. 1 to 5.
Deactivating the automatic S/W changeover function
Press the keys "±1h" and "Day" once simultaneously.
Press the key "h+" until "– –" appears (after the last day in the relevant
month)
Press the key " ": The clock changes to the current operating state.
The S/W time changeover can then be performed either manually by
pressing the key "±1h" once or new data can be entered as shown in
Figs. 1 to 5.
5. Technical data
Connection see unit imprint
Switching capacity see unit imprint
Switching output potential free
Contacts 1 or 2 changeover contact
Ambient temperature
–10 °C to +55 °C
Protection class (VDE 0633) II
Accuracy typ ± 2,5 sec./day at +20 °C
Running reserve 150 h at +20 °C
Full charge reached in 140 h at +20 °C (NC-accu)
Minimum switching time 1 min.
Programmable every minute
Programming instructions 42
Manual switch Automatic/Override
FIX ON/FIX OFF
Block formation free day and channel
block formation
Summer time/ automatical
winter time changeover
Sealing yes
Subject to modifications
4.5 Changing the programmed switching times
Keep pressing the "Prog." key until the switching time to be changed is
displayed.
The new data can then be entered as described in Point 3.3.
Note on saving switching times:
If programming is not
completed with the " " key after the switching time
is entered (3.3), the complete switching command is still automatically
saved after approximately 90 seconds. The time switch then changes to
automatic mode and shows the current time again.
4.3 Manual switch " "
The current switching state can be changed at any time with the " " key for
channel 1 or 2 (depending on the version).
Use of this manual override facility does not alter any of the programmed
information.
Display
flashing
Press the key "±1h" once
flashing
