Muller SC 28 - User Manual

SC28.X3/M/E/0307
Programming manual Astro-switching SC 28
1 ⇒ Monday
2 ⇒ Tuesday
3 ⇒ Wednesday
4 ⇒ Thursday
5 ⇒ Friday
6 ⇒ Saturday
7 ⇒ Sunday
⇒ Channel ON
⇒ Channel OFF
In mode AUTO manual
switching possible by pressing
relevant keys.
Programming
Key functions
Menu Selection of programming modes
AUTO → PR → ? → → S/W → AUTO ...
[ CL ] CLear programmed switch commands in
modes PR; ? and
.
[
◆] In PR; ?; and S/W modes:
Select function option of flashing digit resp.
position.
In Mode ?: Change selected inputs.
[ O.K.] Confirm the selected mode.
In PR and
modes:
Advance to required position. (forwards)
In? mode:
Advance to next switching time.
In S/W mode:
Enter into memory.
[◄] In PR and
modes:
Return to required position. (backwards)
In ? mode:
Return to previous switching time.
[ A ] In AUTO mode:
[ B ] Press for manual override ON or OFF in
relevant channel. Holding down key for 3
seconds will switch ON or OFF PERM override.
perm will be displayed. Programmed switching
functions of relevant channel are suppressed.
Cancel permanent ON or OFF by holding down
key for a further 3 seconds, perm will disappear.
Programming advice
The default setting on delivery is programmed real
time and date, the summertime change is
activated.
Battery power reserve:
Either without external power, or during a supply
interruption, by operating the O.K. button the display
comes on and switching commands can be
programmed.
Make inputs step by step. The appropriate position in
the display is flashing and can be changed by pressing
◆ key. Advance to next position by using O.K. key, go
backwards by using ◄ key. Inputs are terminated
when flashing finishes.
Installation details
Caution: The installation and assembly of electrical
equipment must be only carried out only by a
skilled person.
Connect to voltage and frequency according to type
label only.
Warranty void if housing opened by unauthorised
person.
The high density electronic circuit is protected against
a wide range of external influences. Incorrect operating
may occur if external influences exceed certain limits.
Reset
Pressing recessed button in the middle of ◄ key and
CL key, will clear date, real time and microprocessor
Switching programmes normally will not be affected.
(Check by Read – Out; “?”mode)
The
mode is selected because date and real time
must be programme new.
Operating modes
AUTO Display of time, day of week, current switch
status of channel(s). Bar graph display of ON
time. Display the current sunset-time (ON) by
operating the O.K. key and the sunrise-time
(OFF) by operating the O.K. key a second time.
Manual overriding possible (key A, B)
PR Input of switching commands according to
week day(s) and time
Use arrow ◄ and O.K. keys to alter flashing digit.
Use diamond
◆ key to increase value.
(Confirm last input with O.K. key, will enter into
memory)
? Displays number of free memory locations
Selects the selected Astro-table
Show switching times
Alter switching time
Clear single or all switching times
Use O.K. key forwards or ◄ key backwards to
display switching times.
Use diamond
◆ key to change (alter)
displayed switching time.
Use CL key to cancel the displayed switching
time.
Use CL key twice to cancel all switching times if
number of free memory locations available
displayed only.
Input of actual date and time
Use arrow ◄ and O.K. keys to alter flashing
digit.
Use diamond
◆ key to increase value.
(Confirm last input with O.K. key, will enter into
memory and change into AUTO mode)
S/W To activate / deactivate the summer/winter
time change over.
Use diamond
◆ key to select automatic S/W –
time change ON or OFF.
(Confirm last input with O.K. key, will enter into
memory and change into AUTO mode)
Astro-function
• The switch function OFF in Astro mode is alligned
with sunrise
• The switch function ON in Astro mode is alligned
with sunset
• Each switch-time can be programmed alternatively
as Astro, or as normal switch-time.
• With the two channel version each channel can be
programmed seperately to be Astro or normal
switching function.
• If the Astro-function is chosen for a switch-time, the
sunrise (turning off) as well as sunset (turning on)
times programmed for the current day will be shown
in the Display -
- this time can be changed as required and
becomes automatically modified each successive
day in accordance with the chosen Astro table -
- the difference (offset) between the entered switch-
time and the sunrise/set-time is fixed for successive
operations
• The programmed switching times, (mode P), as well
as the indicated Astro-switch times (mode?) are
always applied exclusively to the current day.
• In mode AUTO The current sunset-time can be read
by pressing button O.K., and by pressing O.K.twice
the current sunrise-time is displayed
• In mode ? the matching astro-table must be chosen
as the first step.
Astro table – custom on request
Table Location
At 01 Scotland
At 02 England North
At 03 England South
At 04 Ireland
At 05 Germany North
At 06 Germany Middle
At 07 Germany East
At 08
Germany South, Swiss North East,
Austrian North
At 09 France Middle
At 10 France North East
At 11 France North West
At 12 France South East; Swiss East
At 13 France South West
At 14 Italy North, Swiss South, Austrian South
At 15 Italy Middle
At 16 Italy South
Mode ?
Select time zone. (see table)
Prior to programming switching commands it is
necessary to select the installation time zone.
A different Astro-table can be chosen at anytime. The
currently programmed Astro-switch times are
automatically re-calculated after the selection of the
new table.
Programmed Astro-switch times can be checked,
amended or deleted and input again..
Example: Astro-table 05 (At 05) required.
Start from: Mode AUTO;
Astro-table 01 (At 01) active.
Push button
2x, &
button O.K. 1x
Display of free
programming
commands
Push button
O.K. 1x
Push button
◆ 1x
Push button
◆ 3x
After programming, viewing or amending time zone, by
pressing button O.K. switching commands can be
viewed, programmed or amended.
To return to AUTO mode press
button once.
Mounting advice
DIN – rail – mounting
Back view
Wall mounting
(Special cover required)
Wiring diagrams
SC 28.13
SC 28.23
-

Summary

Programming Manual Overview

Key Programming Functions

Details essential keys and their functions for programming the Astro-switching unit.

Programming Advice

Provides guidance and tips for effective programming of the device.

Installation Details

Covers critical safety and assembly instructions for electrical equipment.

Reset Procedure

Explains how to reset the device, including date, time, and microprocessor settings.

Operating Modes Explained

AUTO Mode

Displays time, day, current switch status, and sunset/sunrise times.

PR Mode

Allows input of switching commands based on weekday and time.

? Mode

Selects the Astro-table and displays/alters switching times.

S;W Mode

Activates or deactivates automatic summer/winter time changeover.

Astro-function and Settings

Astro-function Details

Explains how Astro-function aligns switching with sunrise/sunset times.

Astro Table Selection

Lists available Astro tables for different geographical locations.

Time Zone Selection

Procedure for selecting the appropriate installation time zone.

Device Mounting and Wiring

Mounting Advice

Guidance on how to mount the device, including DIN-rail and wall mounting.

Wiring Diagrams

Illustrations showing the electrical connections for the device.

Programming Examples

AUTO Mode Example: Date and Time Input

Demonstrates inputting or changing the current date and time in AUTO mode.

PR Mode Example: Day;Week Programming

Shows programming switch commands for specific days and times.

? Mode Example: Altering Switching Times

Illustrates modifying existing switching times and applying Astro-function.

S;W Mode Example: Summertime Changes

Explains how to activate or deactivate automatic daylight saving time changes.

? Mode Example: Cancelling Functions

Demonstrates clearing programmed switching times and all inputs.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

This document describes the programming and operation of an Astro-switching device, model SC 28. It covers various modes, key functions, programming advice, installation details, and examples of use.

Function Description

The Astro-switching device is designed to control electrical equipment based on astronomical events (sunrise and sunset) and programmed time schedules. It features multiple operating modes, including AUTO for automatic operation, PR for programming switching commands, and ? for displaying and altering switching times. The device can manage up to two channels, allowing independent control of different circuits.

Astro-function: The core of the device's functionality lies in its Astro-function. It aligns the OFF switch function with sunrise and the ON switch function with sunset. Each switch-time can be programmed as either an Astro-switch time or a normal switch-time. For two-channel versions, each channel can be programmed independently for Astro or normal switching. When the Astro-function is selected for a switch-time, the sunrise (turning off) and sunset (turning on) times for the current day are displayed. These times can be adjusted, and the device automatically modifies them daily according to the chosen Astro-table. The difference (offset) between the entered switch-time and the sunrise/set-time remains fixed for subsequent operations. Programmed switching times (mode P) and indicated Astro-switch times (mode ?) are always applied exclusively to the current day. In AUTO mode, the current sunset time can be read by pressing the O.K. button, and the current sunrise time by pressing O.K. twice. In ? mode, the matching Astro-table must be selected as the first step.

Summer/Winter Time Changeover (S/W mode): The device supports automatic summer/winter time changeover. Users can activate or deactivate this feature. When activated, the device automatically adjusts Astro-switch times and other programmed times according to the "European Regulation" (last Sunday in March for start, last Sunday in October for end).

Permanent Override: In AUTO mode, a manual override function is available. Pressing key A or B for 3 seconds will switch ON or OFF PERM override, suppressing programmed switching functions for the relevant channel. Holding the key down for another 3 seconds will cancel the permanent override.

Usage Features

Key Functions: The device utilizes several keys for navigation and programming:

• Arrow keys (◆): Used to alter flashing digits or positions in PR, ?, and S/W modes. In ? mode, they change selected inputs.
• O.K. key: Confirms the selected mode. In PR and modes, it advances to the next required position (forwards). In ? mode, it advances to the next switching time. In S/W mode, it enters data into memory.
• ✔ key: In PR and modes, it returns to the previous required position (backwards). In ? mode, it returns to the previous switching time.
• CL key: Clears single or all switching times. Pressing it twice cancels all switching times if the number of free memory locations is displayed.
• Diamond key (◆): Increases the value of a flashing digit. In S/W mode, it selects automatic S/W time change ON or OFF.

Operating Modes:

• AUTO Mode: Displays time, day of week, current switch status, and a bar graph of ON time. It also shows current sunset/sunrise times. Manual overriding is possible.
• PR Mode: Allows input of switching commands based on weekdays and time. Users alter flashing digits using arrow and O.K. keys, and increase values with the diamond key. The last input is confirmed with O.K.
• ? Mode: Displays the number of free memory locations, selects the Astro-table, shows/alters switching times, and clears single or all switching times. O.K. and ✔ keys navigate switching times, while the diamond key changes them. CL key cancels displayed switching times.
• Mode: Used for inputting the actual date and time. Arrow and O.K. keys alter flashing digits, and the diamond key increases values. Confirmation with O.K. enters data and switches to AUTO mode.
• S/W Mode: Activates or deactivates the summer/winter time changeover. The diamond key selects ON or OFF, and O.K. confirms the input.

Programming Advice:

• The device comes with a default setting of real-time and date, with summertime change activated.
• Programming is done step-by-step, with the appropriate position flashing for changes using the ◆ key. O.K. advances to the next position, and ✔ goes back. Inputs are terminated when flashing stops.
• The device has a battery power reserve, allowing programming even without external power or during a supply interruption by pressing the O.K. button to activate the display.

Astro-table Selection: Before programming switching commands, the installation time zone must be selected. A different Astro-table can be chosen at any time, and programmed Astro-switch times are automatically recalculated. The manual provides a table of predefined Astro-tables for various geographical locations (e.g., Scotland, England North/South, Ireland, Germany North/Middle/East/South, France Middle/North East/North West/South East/South West, Italy North/Middle/South, Swiss North East/East/South, Austrian North/South). Custom Astro-tables are available upon request.

Maintenance Features

Installation Details:

• Installation and assembly of electrical equipment must be carried out only by a skilled person.
• The device should be connected to voltage and frequency according to its type label.
• The warranty is void if the housing is opened by unauthorized personnel.
• The high-density electronic circuit is protected against external influences, but incorrect operation may occur if these limits are exceeded.

Reset Function: Pressing the recessed button in the middle of the ✔ key and CL key simultaneously will clear the date, real time, and microprocessor. Switching programs are normally not affected, but it is recommended to check by Read-Out in "?" mode. This action is typically performed when the date and real time need to be reprogrammed.

Muller SC 28 Specifications

General

Current	16 A
Number of Pins	3
Material	Plastic
Weight	150 g
Type	Timer
Voltage	230 V
Timer Range	24 hours