21. Simplified EU declaration of conformity ......................... 50
22. Warranty terms and conditions ......................................... 51
EN
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1. This manual...
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describes how to use the DuoFern Manual Control.
1.1 How to use this manual
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◆ Before you begin, please read this manual through completely and
follow all the safety instructions.
◆ Please also read the instruction manuals for the accessories (if avail-
able) as well as the manuals for the respective connected electrical
appliances.
◆ This manual is part of the product. Please store it in an easily accessi-
ble place.
◆ When passing the DuoFern Manual Control on to a third party, this
manual must be passed on as well.
◆ Damage resulting from non-compliance with this manual
and the safety instructions will void the warranty. We assume
no liability for any resulting damage.
2. Hazard symbols
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The following hazard symbols are used in this manual:
EN
Danger area / dangerous situation
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2.1 Levels of danger and signal words
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ATTENTION!
This hazard may lead to property damage.
2.2 Symbols and depictions used
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Other useful
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information
Please read the respective
manual
1. Procedures
2.
◆ Itemisation
1) or a) Lists
Activated menu symbols and setting
parameters are shown on the display.
EN
5
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3. Safety instructions
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The use of defective equipment can lead to personal injury and
damage to property.
◆ Never use defective or damaged devices.
◆ Check the DuoFern Manual Control for damage.
◆ Please contact our Customer Service if you find any damage, see
page 52.
Improper use leads to an increased risk of injury.
◆ Instruct all relevant parties in how to use the DuoFern Manual
Control safely.
◆ Children must not play with the device.
3.1 Intended use
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Only use the DuoFern Manual Control to log on and control DuoFern
devices.
Operating conditions
◆ The associated tubular motors must be fitted with mechanical or
electronic end position switches.
◆ Only operate the DuoFern Manual Control in dry rooms.
◆ The installation and operation of radio systems is only permitted
for systems and devices where a malfunction in the transmitter or
receiver would not cause a danger to persons or property or where
this risk is already covered by other safety equipment.
EN
Radio systems that transmit on the same frequency
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can cause interference.
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3.2 Improper use
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Using the DuoFern Manual Control for any other purpose than previously
mentioned is not permissible.
Improper use can lead to serious injuries or property damage.
Never use the existing radio system (e.g. DuoFern radio system) and its
components for the remote control of devices and systems with increased
safety-relevant requirements or where there is an increased risk of accidents. Applications of this kind require additional safety equipment.
Observe the respective statutory regulations for the installation of such
systems.
3.3 Glossary - definition
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2014/53/EU
◆ European Radio Equipment Directive
DuoFern
◆ RADEMACHER radio system used to control compatible
products.
HomePilot®
◆ The HomePilot® is a central control unit for RADEMACHER radio
products.
EN
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4. Included in delivery
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a)
b)
Included in delivery
a) 1 x manual control
b) 3 x 1.5 V battery, type AAA (micro)
c) 1 x instruction manual (not illustrated)
EN
After unpacking please check and compare...
... the contents of the package with those specified above.
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5. General view
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1)
2)
EN
7)
3)
4)
5)
6)
1) Display
2) Multidirectional toggle switch with control and navigation
buttons
3) OK / stop button
4) Back / cancel button
5) Menu / home screen button
6) Group / channel selection button
7) Status LED
8) USB port (micro USB)
9) Battery compartment
10) Battery cover
8)
9)
10)
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6. Product description
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The DuoFern Manual Control serves as a central control for DuoFern
devices. It can be used, for example, to remotely control roller shutters,
Venetian blinds, slats, awnings or lighting conveniently by radio.
In addition, you can configure DuoFern devices and automate them in
groups with the DuoFern Manual Control.
EN
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7. Technical specifications
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General information
Nominal voltage:4.5 V (DC)
Battery type:3 x 1.5 V type AAA (micro)
Battery life:approx. 2 years
Permissible ambient
temperature range:
Protection class:II (only for use in dry rooms)
Dimensions (W x L x H):165 x 48 x 22 mm
DuoFern radio technology
Transmission frequency:434.5 MHz
Transmission power:max. 10 mW
Range:
Maximum number of groups: 9
Maximum number of devices
per group:
Maximum number of
DuoFern devices:
0°C to < 40°C
In buildings: approx. 30 m *
Outdoors: approx. 100 m
* Depending on the building structure
21
45
EN
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8. Initial commissioning
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Pull the release film off the battery compartment, then the start wizard
will start automatically.
The start assistant will also start automatically in the previously set language after changing the battery or resetting the manual control.
Setting sequence in the start wizard:
◆ Language
◆ Date (day. month)
◆ Year
◆ Time (hours:minutes)
◆ Location of the manual control
● In Germany
Enter the first two digits of your German postcode.
● International
Select the corresponding location from the list.
Confirm each entry with the OK button.
Continue with logging on the DuoFern devices
1. If no DuoFern devices have been logged on
yet, the message shown opposite appears.
EN
2. Press the OK button to switch to the
log-on menu.
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8. Initial commissioning
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3. Switch the desired DuoFern devices
to log-on mode.
3.1 Press the “Search devices” button.
3.2 All of the DuoFern devices found are then
displayed.
If required, you can define the name and
group affiliation for the devices found, as
described on
page 25.
4. The home screen appears after the
final setting, see example.
The DuoFern Manual Control is now
ready for operation.
EN
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9. Brief description of the home screen
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A
EN
B
C
Example
Home screen with logged-on
DuoFern device.
A
Manual control status / setting
A
Group information
B
◆ Group name and switching times
Device information
C
◆ Device name
◆ Status of the selected DuoFern device
◆ Activated functions
When the manual control wakes up (is lifted), the status of
the selected DuoFern device is retrieved and displayed.
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You can use the right / left buttons to switch
The up / stop / down button can be used to
The status LED shows whether all DuoFern end
between the individual devices in the group.
control groups or the selected device.
units have received and confirmed the switching
signal.
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10. Changing a device/groups
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You can use the group / channel selection button on the
home screen or in the menus to switch between groups
and devices.
1. Open the pop-up menu of the current group
or the currently selected device.
2. Use the multidirectional toggle switch to
select a group or device.
3. Confirm the selection with the OK button.
11. Brief description of the main menu
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You can use the menu / home screen button to call up the
main menu to configure the selected device or the selected group. You can also use the button to take you straight
back to the home screen.
> Group ....................................................................................34
> Radio .................................................................................... 37
> Manual control ....................................................................... 44
EN
* The available device menus are dependent on the device
selected on the home screen and therefore vary.
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13. Automatic mode
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In this menu you can switch automatic mode on / off for the selected
group or for a selected DuoFern device.
Display on the home screen when automatic mode is deactivated
MANU
Active automatic functions are shown with the corresponding automatic symbol.
1. Open the menu: Main menu > Automatic mode
The current status for the selected device
or all devices is retrieved and
displayed after opening the menu.
2. Open the pop-up window for the
settings with the OK button.
3. Select and confirm the desired
setting.
Symbols on the home screen when automatic mode is activated
Time (switching times)
Dawn (astro)
Dusk (astro)
Sun (external sensor)
Random function
EN
Alternatively, automatic mode can also be switched
on / off on the home screen by pressing and holding the
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OK button (approx. 3 seconds) for the selected group or
selected device.
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14. Automation
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In this menu, you can automate your selected group
based on time or dawn and dusk.
The following options are available for selection:
◆ Off
◆ Same for every day
◆ Weekdays / weekend
◆ Individual
1. Open the menu: Main menu > Automation
The current status for the selected group
is displayed after opening the menu.
2. Open the pop-up window for the options
with the OK button.
3. Select and confirm the desired
option.
EN
Once you have activated an option, a right arrow appears
next to the group name to open the “Switching time
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mode” button, see next page.
In addition, the “Random function” appears for further
18
selection. To set the random function, see page 23.
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14. Automation
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EN
4. Depending on the option previously selected,
you will either move to the “Switching time
mode” menu directly or via the day selection
window.
Options in switching time mode:
◆ Time
● Two switching times (time 1 and 2)
◆ ASTRO
● Morning = dawn
● Evening = dusk
14.1 Time settings
5. Open the “Time” menu and select time 1 or 2.
5.1 Open the respective pop-up window with the
OK button.
5.2 Set and confirm the desired switching time.
The automatic timer for the devices in the group are acti-
vated after confirming the
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time. A status dialogue appears on the display that closes
automatically if the transmission is completed successfully.
Devices in which the automatic timer could not be acti-
vated are listed. Exit the dialogue window with the back
button.
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14. Automation
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Configuring target statuses
6. Once you have activated a time,
a right arrow appears next to the menu item
to open the menu.
The set switching time and the configuration
of the possible target statuses are displayed
in this menu.
6.1 Open the pop-up window with the
OK button.
Possible options:
Same for all devices A commonly supported target status
can be selected for the entire group.
Individual If the “Individual” option is selected, the tick
is removed and a list of devices appears from
which a target status can be individually
selected.
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20
Pay attention to the links between the
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settings in switching time mode.
Switching time settings:
◆ < 12:00 hours - the “Morning” option is blocked
◆ ≥ 12:00 hours - the “Evening” option is blocked
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14. Automation
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14.2 ASTRO settings
In this menu you have the option to automate the devices in the group
based on the dawn or dusk calculation. The switching times shift daily
according to dawn and dusk.
7. Open the “ASTRO” menu and select astro
mode for “morning or evening”.
Possible options:
Morning The group receives a switching command
for the dawn time newly calculated each day.
EveningThe group receives a switching command for the dusk time newly calculated each day.
7.1 Open the pop-up window for the respective
ASTRO mode with the OK button.
7.2 Confirm the calculated switching time for
the current location, thus activating the
respective ASTRO mode.
The automatic dawn and dusk function for the devices in
the group is activated after confirming the astro time. A
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status dialogue appears on the display that closes automatically if the transmission is completed successfully.
Devices in which the automatic function could not be ac-
tivated are listed. Exit the dialogue window with the back
button.
EN
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14. Automation
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Varying the respective ASTRO time
7.3 Once you have activated an astro time,
a right arrow appears next to the menu time
to open the menu.
The calculated switching time can be
individually adjusted in this menu.
Possible options:
◆ Time delay
The calculated dawn and dusk time is delayed by the number of
minutes set here (+/- 60 min).
◆ Earliest
Set the earliest time at which the switching command should be
executed.
◆ Latest
Set the latest time at which the switching command should be
executed.
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Pay attention to the links between the
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settings in switching time mode.
ASTRO settings:
◆ Morning - “Time 1” is blocked
◆ Evening - “Time 2” is blocked
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14. Automation
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14.3 Setting the random function
The random function enables a random delay of the set timer periods
ranging between 0 and 30 minutes.
1. Open the menu: Main menu > Automation > Random
function
The random function is only available when automation
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has been defined for the group.
2. Open the pop-up window for the random
function with the OK button.
3. Activate and confirm the function.
Symbol on the home screen when the random function is activated
The cube symbol is displayed on the home screen for all devices in the
group when the random function is activated.
◆ Software version ...............................................................33
* The available device menus are dependent on the device
selected on the home screen and therefore vary.
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15.1 Name
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You can enter and save the device names in this menu.
1. Open the menu: Main menu > Settings > Device >
Name
You can use the multidirectional toggle switch
to change and save the name of the device
using the on-screen keyboard.
15.2 Group(s)
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A tick symbol in the menu shows the groups in which the selected
device is located.
The device can be added or removed from the
groups using the multidirectional toggle
switch and the OK button.
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15.3 Automatic functions
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The menu displays the status of the automatic device functions.
1. Select the desired automatic function
using the multidirectional toggle switch.
The current status for the selected device is retrieved and
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displayed after opening the menu.
2. Open the pop-up window for the
settings with the OK button.
3. Select and confirm the desired
setting.
The respective DuoFern device always acknowledges when
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an automatic status has been changed.
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15.3.1 Automatic solar function
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For DuoFern end units with the automatic solar function, the roller shutter moves to the sunshine position after the solar function is activated.
The run time must be configured prior to setting the sun-
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shine position, see page 30.
1. Activating the automatic solar function, as
described above, provides access to other
setting options by pressing the button.
The status of the automatic solar function
and the current sunshine position are
displayed again in the “Automatic solar
function” submenu.
2. Select the sunshine position and open using
the OK button.
3. You can move to the desired sunshine position
by pressing and holding the up / down
button.
The position reached is displayed after
releasing the up / down button. This can be
accepted with the OK button or re-adjusted
with the up / down button.
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15.4 Ventilation position
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If you do not want the roller shutter to close fully to the lower end point,
you can use this function to configure an arbitrary position
(e.g. as the ventilation position).
When closing automatically, the roller shutter stops at the ventilation
position, but it can subsequently be fully closed manually.
The run time must be configured prior to setting the venti-
i
lation position, see page 30.
1. Select the desired function
using the multidirectional toggle switch.
The subsequent setting of the ventilation position is only
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possible when the ventilation function is activated.
2. Open the pop-up window for the ventilation
position.
3. You can move to the desired ventilation
position by pressing and holding the
up / down button.
The position reached is displayed after
releasing the up / down button. This can be
accepted with the OK button or re-adjusted
with the up / down button.
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15.5 Intermediate position
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This function can be used to set intermediate values, setting the device
to the intermediate value when it is next switched on.
1. Select the desired function
using the multidirectional toggle switch.
The subsequent setting of the intermediate position is only
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possible when the intermediate function is activated.
2. Open the pop-up window for the intermediate
position.
3. You can move to the desired intermediate
position by pressing and holding the
up / down button.
The position reached is displayed after
releasing the up / down button. This can be
accepted with the OK button or re-adjusted
with the up / down button.
Reset after a stop command
The activation of this function means that the new position is adopted
as the intermediate position if there is a stop command.
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15.6 Motor run time
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The run time setting is used so that you can specifically move to certain
percentage positions (e.g. sunshine position or ventilation position).
Read the information provided in the operating manual of
the device used.
15.7 Change of rotation direction / mode
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If required, this function can be used to change the rotation direction or
mode of a connected DuoFern device (e.g. a radio tubular motor).
Reversal of rotation direction
It is not necessary to re-wire the motor if the rotation direction of the
connected motor is wrong ( moves the roller shutter downwards
and moves the roller shutter upwards). The rotation direction
of the motor can be easily changed using the “Reversal of rotation
direction” function.
Mode change
A mode change alters the action executed by a device at an up or down
command.
For example, if a device is switched on at an up command, this action is
inverted by the mode change.
EN
30
On and off commands remain unaffected by this.
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15.8 End points
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You can use the DuoFern Manual Control to set the end points of a connected RADEMACHER electronic tubular motor.
The end point function is only available for RADEMACHER
i
electronic tubular motors from 2000 onwards.
The end points cannot be set with the DuoFern Manual
Centre position
We recommend that you initially move the roller shutter to the centre
position in order to ensure the correct setting of the end points.
Control for tubular motors connected in parallel.
1. Open the “Centre position” menu.
2. Use the up / down buttons to move the
roller shutter to the centre position and press
the OK / stop button to stop the motor.
For more, see next page.
EN
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15.8 End points
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End point setting
3. Open the “End point setting” menu.
4. Move the roller shutter to the desired
position with the up / down buttons.
The end position is stored in the tubular motor
after releasing the up / down button.
4.1 If the desired end position is not
correct, the roller shutter can be moved
again in the opposite direction by pressing
the up / down button in order to repeat
the setting.
The tubular motor moves for approx. 5 seconds and then stops automatically.
4.2 Reset the desired end position
with the up / down buttons.
5. Exit the “End point setting” menu.
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15.9 Remote log-on/off
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This function can be used to switch DuoFern devices to log-on or log-off
mode without even having to press a button for the respective mode
on the device.
1. Select the desired mode
(log-on / log-off ).
2. The respective command is sent to
and confirmed by the DuoFern device by
pressing the OK button.
2 minutesThe devices are then in the selected mode for 2 minutes.
This can be prematurely terminated with
the “Stop” function.
15.10 Factory settings
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This function can be used to reset the selected DuoFern device to the
default factory settings without removing the DuoFern devices logged
on to this device.
After selecting the “Reset” option, a message appears stating that you
can execute a software reset by pressing the OK button or exit the function by pressing the back button.
EN
15.11 Software version
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The software version of the currently selected device is displayed in this
menu.
◆ Name ...............................................................................36
◆ Jog mode .......................................................................... 36
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16.1 Participants
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A tick symbol in this menu shows which devices are in the currently
selected group.
/ Devices can be added or removed from the
groups using the multidirectional toggle
switch and the OK button.
Adding a device to a group for which automation is already
stored means that the DuoFern Manual Control activates
i
the automatic functions on the respective device once
they have been added. This is confirmed by the respective
DuoFern device.
16.2 Sorting
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This menu is used to define the order of the devices within the group.
The current order of the devices within the selected group is shown as
a list.
/ You can select, move and place a device in the
desired position using the multidirectional
toggle switch and OK button.
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16.3 Name
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You can enter and save the group names in this menu.
You can use the multidirectional toggle switch
to change the name of the group using
the on-screen keyboard.
16.4 Jog mode
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If required, you can activate jog mode for a group. For example, this can
be used for the convenient setting of the slats on Venetian blinds.
Jog mode
Activating the jog mode function means that a short up or down command is sent to the device or devices for this group when you press the
up or down button on the home screen.
EN
36
The shutter can also be moved to the desired position
when jog mode is activated by pressing and holding the
In this menu you can log DuoFern devices on and off the DuoFern
Manual Control. The menu also provides the “Clear-up” option to
remove unavailable devices from the DuoFern Manual Control.
To do so, please also read the operating manual of the
respective DuoFern device.
Maximum number of logged-on devices
You can log a maximum of 45 DuoFern devices on to the DuoFern
Manual Control.
Additional information about logging on can be obtained
from the “Login matrix” on our website at:
www.rademacher.de
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17.1 Logging on devices
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In this menu you can log DuoFern devices on to the DuoFern Manual
Control.
Two options are available:
◆ Search for devices Automatic device search
◆ Radio code Log on devices via a radio code
Search for devices
1. Switch the desired DuoFern devices
to log-on mode.
To do so, please also read the operating manual of the
respective DuoFern device.
2. By pressing the OK button, the
DuoFern Manual Control starts to search
for devices in log-on mode.
2 minutesThe search is active for a maximum of 2 minutes.
Meanwhile, the status LED on the DuoFern
Manual Control flashes green.
2.1 Devices found are listed on the
display.
EN
2.2 If all the desired devices are found,
the search can be terminated prematurely by
pressing the OK button.
or
Cancel the search.
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17.1 Logging on devices
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After terminating the search, a list of the
devices found will be displayed for further
processing.
Here you can now define the names and group
affiliation for the devices found, as described
on page 25.
Devices that have accidentally not been assigned to a
group can be assigned via the “Groups > Participants”
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menu (see page 35).
EN
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17.1 Logging on devices
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Radio code (logging on devices via the DuoFern radio code)
It is also possible to log on the DuoFern devices via the DuoFern radio
code in the first two hours after switching on the power supply.
1. To do this, open the “Radio code” menu.
2. Enter the DuoFern radio code using the
on-screen keyboard and finally select the
“Save” symbol.
2.1 Save the DuoFern radio code by pressing the
OK button, thus sending a log-on command to
the DuoFern device.
3. The device is shown on the display of the
manual control after successfully logging on.
Here you can now define the name and group
affiliation for the devices found, as described
on page 25.
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17.2 Logging off devices
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In this menu you can log DuoFern devices off the DuoFern Manual
Control.
Two options are available:
◆ Start the log-off process
◆ Remove devices manually
Starting the log-off process
1. Switch the desired DuoFern devices
to log-off mode.
To do so, please also read the operating manual of the
respective DuoFern device.
2. By pressing the OK button, the
DuoFern Manual Control starts to
search for devices in log-off
mode.
2 minutesThe search is active for a maximum of 2 minutes.
Meanwhile, the status LED on the DuoFern
Manual Control flashes red.
2.1 Logged-off devices are listed on the
display.
EN
2.2 If all the desired devices are logged off, the
log-off dialogue can be terminated
prematurely by pressing the OK button.
or
Cancel the log-off process.
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17.2 Logging off devices
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Removing devices manually
This function can be used to remove devices from the DuoFern Manual
Control without having to start log-off mode on the DuoFern device.
EN
1. A list of the devices logged on
to the DuoFern Manual Control is displayed
by pressing the OK button.
2. Select the device to be removed using the
multidirectional toggle switch and OK button.
2.1 Then a message is displayed.
2.2 Acknowledge the information by pressing the
OK button. This removes the device manually
from the DuoFern Manual Control.
or
Exit the dialogue using the back button
without removing the device.
2.3 Then the list of devices is displayed
again.
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17.3 Clear-up
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This function enables you to log off all DuoFern devices that are no
longer available by radio from the DuoFern Manual Control.
1. Start clear-up mode.
The DuoFern Manual Control then tries to
reach all the logged-on devices.
◆ Software version ...............................................................47
EN
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18.1 Date & time
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In this menu you can set the date and time and activate/deactivate the
automatic summer / winter changeover.
18.2 Location & astro
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In this menu you can define the location of the DuoFern Manual
Control.
The settings made here are the basis for the dawn and dusk
calculation.
i
Both dawn and dusk times are displayed for information
purposes.
18.3 Language
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In this menu you can set the menu language of the DuoFern Manual
Control.
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45
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18.4 Button lock
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In this menu you can activate/deactivate the automatic button lock.
If the button lock is activated and no buttons are pressed over a longer
period of time, the display turns off and the button lock is switched on
automatically.
If a button is pressed when the button lock is active, a corresponding
message appears on how to unlock the button by pressing and holding
the OK button and the menu button.
The process of unlocking a button using the OK button and
menu button is only temporary and does not deactivate
i
the keyboard in general.
Symbol on the home screen when the button lock is activated
The activated button lock is displayed by the lock symbol on the home
screen.
18.5 Display
i
The display lighting and the “Wake-up” function can be activated or
deactivated here.
Wake-up
If the function is activated, the display lighting is switched on automatically when you lift the manual control (waking up the manual control).
The display lighting turns off automatically again if no further entries
are made after a short period of time.
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18.6 Reset
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This function can be used to completely reset the DuoFern Manual
Control to the default factory settings again.
All previous settings and logged-on DuoFern devices are removed.
1. Ac tivate the “Reset” option.
Then a message is displayed.
1.1 Reset the device to the default factory
settings by pressing the OK button.
or
Exit and do not execute the process.
18.7 Software version
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The software version of the DuoFern Manual Control is displayed in this
menu.
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19. Software update for the manual control
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Please regularly check for the latest software version.
You can find the maintenance tool with the current software version
in the service area of the RADEMACHER website at www.rademacher.de.
1. Start the application after the download and follow the instructions on
the screen.
2. Connect the DuoFern Manual Control to the PC via the USB port.
Use only a USB data cable with a maximum length of 1.5 m
to connect the DuoFern Manual Control.
i
The DuoFern Manual Control must not be disconnected
from the PC during the entire process.
3. The DuoFern Manual Control found is displayed. Click on it. Three
options are displayed:
◆ Creating a backup
Here you can define the file name and then save the backup.
◆ Firmware update
First, a backup is created and then the firmware update starts
automatically.
◆ Restoring the backup
Select and restore an existing backup file.
EN
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20. Changing batteries
i
Only use the following battery type:
3 x 1.5 V - type AAA (micro)
ATTENTION!
Incorrect or leaking batteries can cause damage to the manual
control.
◆ Never use two different battery types.
◆ Never use new and old batteries together.
◆ Take the batteries out of the remote control if they are
not used for a longer period of time.
◆ If a battery leaks, carefully wipe off the fluid in the
battery compartment and insert new batteries.
1. Remove the protective cover in the
direction of the arrow.
2. Insert the three batteries into
the battery compartment with
the right polarity, as shown in
the figure.
EN
3. Re-fit the protective
cove r.
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21. Simplified EU declaration of conformity
i
RADEMACHER Geräte-Elektronik GmbH, hereby declares that the
DuoFern Manual Control complies with the Directive 2014/53/EU (Radio Equipment Directive).
The full text of the declaration of conformity is available at the following
website:
www.rademacher.de/ce
EN
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22. Warranty terms and conditions
i
RADEMACHER Geräte-Elektronik GmbH provides a 24-month warranty for
new systems that have been installed in compliance with the installation
instructions. All construction faults, material defects and manufacturing
defects are covered by the warranty.
Your statutory warranty claims remain unaffected by this warranty.
The following are not covered by the warranty:
◆ Incorrect fitting or installation
◆ Non-observance of the installation and operating manual
◆ Improper operation or wear and tear
◆ External influences, such as impacts, knocks or weathering
◆ Repairs and modifications by third parties, unauthorised persons
◆ Use of unsuitable accessories
◆ Damage caused by unacceptable excess voltages
(e.g. lightning)
◆ Operational malfunctions caused by radio frequency overlapping
and other such radio interference
A prerequisite for the warranty is that the new device must have been
purchased from one of our approved specialist retailers. Proof of this must
be provided by presenting a copy of the invoice.
RADEMACHER will remedy any defects that occur within the warranty
period free of charge either by repair or by replacement of the affected
parts or by supplying a new replacement unit or one to the same value.
There is no general extension of the original warranty period by delivery
of a replacement or by repair as per the terms of the warranty.