Kuehn WD10 User manual

Manual WD10
1
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NMRA-DCC/Motorola
Universal
Switch decoder WD10
The switch decoder WD10 is used to switch points (twin solenoid), signals,
uncouplers, light signals (two or more lights), lighting and other consumers. The
WD10 is a multi-protocol decoder and can be used with controllers that support
the Märklin-Motorola-format (e.g. 6021), and DCC controllers (e.g. Lenz, Multi-
maus)
Technical data and features:
•in DCC-format 2044 addresses
•in Motorola-format 320 addresses
•in total 16 transistor outputs (e.g. for 8 points or block signals)
•RailCom® (bidirectional communication, only in use with DCC
•Power from the digital controller or external AC or DC power unit
•simple choice of address and operation mode by internal programming button
•programmable on the program track of the DCC controller
•programmable in built-in state through programming on the main
•selectable light (shadowing) effects for light signals
•minimal power
12 V
•maximum power (AC)
16 V
•maximum power (pure DC)
24 V
•maximum current per switch output
1,0 A
•maximum current per output group (group A or B)
1,0 A
•maximum total current
1,8 A
•working temperature
0 to 60°C
•measurements (in mm, without assembly points)
ca. 83 x 60 x 25
Important note: The decoder is only provided for use in model railway layouts in
dry rooms. The use of the decoder is only permitted under supervision. The extra
power supply has to be a model railway transformer, that will switch of by a short
circuit to prevent fire. The connection of the decoder is only allowed in powerless
mode.

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Content
1. Safety measurements ................................................................................2
2. Functions of the switch decoder WD10....................................................3
2.1. Digital formats............................................................................................. 3
2.2. Switch outputs............................................................................................. 3
2.3. Power............................................................................................................ 3
2.4. Operation ..................................................................................................... 3
2.5. RailCom®..................................................................................................... 3
3. Installation of the decoder.........................................................................4
3.1. Connections and controls.......................................................................... 4
3.2. Power from the digital controller............................................................... 4
3.3. External power supply................................................................................ 4
3.4. Connection of consumers.......................................................................... 5
3.5. Switching of consumers............................................................................. 5
4. Decoder settings.........................................................................................6
4.1. General instructions of the settings......................................................... 6
4.2. Operation modes of the switch decoder .................................................6
4.3. Set up by programming button................................................................ 7
4.4. Set up by DCC-programming..................................................................... 9
4.5. Reset the decoder ....................................................................................10
4.6. List of the configuration variables of the decoder................................10
4.7. Description of the configuration register...............................................11
5. Troubleshooting ....................................................................................... 15
6. Application notes...................................................................................... 16
6.1. Connecting external pushbuttons ..........................................................16
6.2. Connecting LED.........................................................................................16
6.3. Connecting light signals of the DR, DB, ÖBB, SBB..............................17
6.4. Connecting light signals of the NS.........................................................20
6.5. Create light signal images yourself ........................................................21
6.6. User mode: programming a barrier........................................................21
6.7. Light mode.................................................................................................22
7. Warranty................................................................................................... 22
1. Safety measurements
This product is not a toy! Not recommended for children under 14 years. Not
suitable for children under 3 years due to small parts that can be swallowed!
Improper use may result in injuries because of sharp edges and tips. Please keep
this manual for later use. Only use this decoder in electrical model railway layouts.
Another application is not allowed

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2. Functions of the switch decoder WD10
2.1. Digital formats
The decoder automatically detects the digital formats DCC and Motorola. On
delivery, the outputs of group A are assigned to the point addresses 1 to 4 and the
outputs of group B to the point addresses 5 to 7.
2.2. Switch outputs
The decoder has 16 switch outputs for connecting points (dual solenoid), signals,
uncouplers, light signals (two or more signal images), lighting etc.. The outputs are
divided into two groups (A and B) with 8 outputs each. For each group, the digital
address and the type of consumer (mode) can be set.
2.3. Power
The power can be supplied completely by either the digital system or a separate
power unit (transformer). The digital inputs are galvanically separated from the
external power input by opt couplers.
2.4. Operation
The switch decoder WD10 supports two setting procedures by the user. On the
one hand, the decoder address and the mode (e.g. points, light signals, lighting)
can be set for each output group by the programming button.
Furthermore settings can be made on the programming track of your digital
controller. For example can the switching time be changed, outputs can be set to
flashing mode for railway crossing lights and much more… These settings also can
be changed or adapted when installed by programming on the main (POM).
2.5. RailCom®
RailCom® is a technique for transmitting information from the decoder to the
digital controller in DCC mode (CV content after POM command). By default
RailCom® is activated, the transmission takes place only when the digital
controller is providing the right signal. In Motorola the RailCom® mode is not
used.

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3. Installation of the decoder
3.1. Connections and controls
The decoder has 16 switch outputs
divided in two groups (A and B) with 8
outputs each.
The connection points ext.Pow are
used to connect the power supply
(transformer connection).
The digital information is received by
the decoder over the Digi-In
connections. Should the points be
operated by local buttons then the
GND-connections come in use.
There is a sunken pushbutton in the
housing to set the decoder address.
The LEDs of the output groups are
showing the program step or the error
message of the switch decoder.
3.2. Power from the digital controller
The easiest way to connect the power is
from the digital system. However
„expensive“ digital power is consumed in
this mode. Connect the connections
DIGI_IN with the connections ext.Pow
(external Power) according to figure 2.
This type of connection is definitely
required for programming on the program
track of your digital controller! Depending
on the controller, it may be necessary to
use a resistor 0f 33 Ohm in the power line
(See figure 2a).
3.3. External power supply
By many consumers that need a lot of energy an external power supply for the
switch decoder is recommended. This prevents the use of „expensive” digital
current. Use only suitable power supplies (e.g. model railway transformers). The
decoder will receive the switch commands of the digital controller through the

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connections DIGI_IN. The external
power supply is connected to the
connections ext.Pow .
Hint: Connecting the GND-connections
on the power is not allowed and can
cause damage of the WD10!
3.4. Connection of consumers
You can connect different consumers to
the switch decoder. Both the output
groups A and B behave identically.
Connecting dual solenoid points:
The common wire of the solenoid has
to be connected with C. The other two
wires of the solenoid are connected left
and right of C (see figure 4). Is the
position of the point not according to
the button pressed, exchange both
wires of the solenoid.
Connecting light signals with bulbs: The common wire of the light signal has to be
connected with C. The other two wires of the bulbs are connected left and right of
C (see figure 4).
Connecting light signals with LED: The common wire of the light signals has to be
connected with C. This connector has a positive potential, which means that the
anodes of the LED have to be connected to C. The LED should never be
connected directly. You need a series resistor! Check if your signal already has
one built-in.
Connecting point motors: Motorized points cannot be connected directly to the
decoder. Use either a toggle relays or an adapter for motorized points (MA10).
3.5. Switching of consumers
The control of the switch decoder is varies a lot from controller to controller,
please read the manual of your digital controller.

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4. Decoder settings
4.1. General instructions of the settings
The switch decoder WD10 has two output groups with 4 connection pairs each (in
total 8 connections per group). Very often these output pairs are used for
switching points – one connection sets the point to straight the other connection
to branch. These connection pairs are addressed under their point numbers over
the digital controller. To set a connected point, the switch decoder must be set to
the number of the point. Each output group of the decoder includes 4 consecutive
point numbers. The number of this „group of four“ corresponds with the decoder
address. In the table below you will find an example of the assignment of point
numbers to a decoder address (CV#1 for group A and CV#35 for group B) for the
first 40 point numbers:
Point number
Decoder address
Point number
Decoder address
1,2,3 and 4
1
21,22,23 and 24
6
5,6,7 and 8
2
25,26,27 and 28
7
9,10,11 and 12
3
29,30,31 and 32
8
13,14,15 and 16
4
33,34,35 and 36
9
17,18,19 and 20
5
37,38,39 and 40
10
Hint
At the Multimaus (ROCO) and Lenz compact version 3.0 the point
numbers associated with the decoder address are always one down,
e.g. point 5 is associated with decoder address 1.
4.2. Operation modes of the switch decoder
The switch decoder WD10 can for the most used applications very easily be set by
the selection of operation modes.
If you want to make additional adjustments for your desired performance, set the
user-mode (mode 1). Thereby you will have full access to the many adjustments of
the WD10 through DCC programming. The setting of the operation mode is either
be done by the programming button (see next chapter) or by programming the
registers with your DCC controller.
On delivery the operation mode is set to 2. The outputs are driven in pairs (e.g.
switching points). Regardless the duration of the activation of the point button, the
output will shut down after 0,064 seconds, to protect the solenoid) (factory
settings). A renewed push on the button is only possible after 0,5 seconds.

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Mode
Description
Similar to
1
(5)*
User mode:
All settings can be done through the configuration
register, e.g. changing switch times, operate barriers
and barrier lights, etc.
-
2
(6)*
4 output pairs on pulse output,
output remains active according the timer settings
(factory set 0,064 seconds) regardless the duration of
the pressing of the button
Lenz
LS100
(standard)
3
(7)*
4 output pairs on pulse output,
output stays active as long as the button is pushed or
until the controller switches of automatically
Märklin®
K83
4
(8)*
4 output pairs on continues operation,
available for, per example, two light signals without soft
light change or other continuous consumers (no layout
power switchable, therefore use an external relays)
Märklin®
K84 Other
wiring !
5
(9)*
Light mode
depending on the command different light-effects are
made for construction sites or billboards (see chapter
6).
-
6
(10)*
Light signals with two signal images (block signals)
You can connect 4 light signals with two signal images
per output group. The signal will prototypically light up
and dim.
-
7
(11)*
Light signals with max. 4 signal images
You can connect 2 light signals with 4 signal images
per output group. The signal will prototypically light up
and dim.
8
(12)*
NS-light signals with max 4 signal images
From „red“ to „green“ will be prototypically switched
over „yellow“. The lamps will prototypically light up and
dim.
* )
Hint
For the Multimaus and Lenz compact version 3.0 use a 4 higher
switch number to set the mode with the programming button, e.g. for
mode 5 (light mode) switch point 9.
4.3. Set up by programming button
The switch decoder can be set to the most important applications very easily and
without extensive programming on the programming track, using the integrated

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programming button. You can set the decoder address and mode for each of the
two output groups (A and B) separately. This method has to be used
if you are using a digital controller with only the Motorola format (e.g. 6021).
The decoder will go through the programming mode in 5 steps after entering the
set mode (steps 2 to 6 in table below). You can skip each of the set points by
pressing the programming button and move to the next input. In this way e.g. it is
possible to change only the mode of group B without reprogramming all the other
settings.
Step
Input
LED Gr. A
LED Gr. B
1.
Start set up
lights up
lights up
2.
Input point address group A
lights up
out
3.
Set up mode group A
flashes
out
4.
Input point address group B
out
lights up
5.
Set up mode group B
out
flashes
6.
Reset the switch decoder
flashes
flashes
Set up step by step:
1. Connect the switch decoder with the power. Press the programming button
for a few seconds until the LED of group A and the LED of group B light up.
2. Release the programming button – only the LED of group B will light up. The
decoder is waiting for the input of the decoder address. Select on your digital
controller which point number you want to switch with the first output of
group A of the WD10. Turn the selected point in any direction. For all the
outputs of group A the point numbers will be assigned automatically.
Hint: during set up: do not connect a point to the switch decoder.
If the decoder understood the address for group A, the LED of group A and
the LED of group B will illuminate for approximately 3 seconds.
3. Now the LED of group A flashes. The decoder is waiting for the input of the
operation mode for group A. Select a point number that corresponds with the
number of the desired operating mode. (users of the Multimaus and the Lenz
compact version 3.0 use the numbers between the brackets) and switch this
point once. If the decoder understood the inputs for the operation mode of
group A the LED of group A and the LED of group B will illuminate for
approximately 3 seconds.
4. On the WD10 the LED of group B illuminates and the decoder is waiting for
the input of the decoder address. Select on your digital controller the point
number, which you want to operate with the first output of group B of the
WD10. Switch the selected point in any direction. For all the outputs of group

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A the point numbers will be assigned automatically..
If the decoder understood the address for group B, the LED of group A and
the LED of group B will illuminate for approximately 3 seconds.
5. Now the LED of group B flashes. The decoder is waiting for the input of the
operation mode for group B. Select a point number that corresponds with the
number of the desired operating mode. (users of the Multimaus and the Lenz
compact version 3.0 use the numbers between the brackets) and switch this
point once. If the decoder understood the inputs for the operation mode of
group B the LED of group A and the LED of group B will illuminate for
approximately 3 seconds
6. Now the LED of group A and the LED of group B are flashing simultaneously.
If you don’t want to perform a reset, then press the programming button and
both LEDs will go out. The switch decoder is ready for use.
Switch point 8 on your digital controller and the decoder will be set to the
factory settings. Users of the Multimaus and the Lenz compact version 3.0
have to use point 12 for a reset. Other point numbers will not perform a
reset..
4.4. Set up by DCC-programming
The kuehn – decoder WD10 can be adjusted to the desired performance by
programming the so called configuration variables (CV’s). Follow the instructions
in the manual of your digital controller during DCC programming. Programming on
the program track can be performed by Physical Register Addressing, Paged CV
Addressing or Direct Mode Addressing. In programming mode only certain CVs
can be addressed.
All configuration variables of the kuehn – switch decoder (except the addresses)
can also be changed, when installed, with Operation Mode Programming.
Depending on the capabilities of your digital controller, you can access the WD10
under his point-decoder address or under, only for programming, the used
locomotive address („help“-address).
Programming with „old Arnold controller“ (identical to Märklin Digital = art. nr.
6027): With digital controllers that use the programming mode Physical Register
Addressing only the registers R1 to R5 can be programmed. Addresses and
registers that contain a value of 0 can be programmed but not be read. The range
of values for these controllers lies between 1 and 99, therefore their use for
programming the decoder is limited.
Programming with the controller compact by Lenz : with digital controllers version
3.1 you only can program the registers R1 to R6. With the newer version you can
program and read all CV’s.

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Programming with Märklin® „Control Unit“ 6021 or Märklin® „Mobile Station“
(controllers without DCC data format)
With digital controllers, that only support the Motorola data format you cannot
adjust the extended settings of the configuration variables. In this case use the
quick adjustment of the decoder by the programming button. Does your „Mobile
Station“ support the DCC format, so take advantage of this for a comfortable
setting of the decoder.
4.5. Reset the decoder
Decoder – reset: If you lost track after programming your decoder and you wish
to reset de decoder on factory settings, please program a value of 8 in CV#8.
4.6. List of the configuration variables of the decoder
CV-nr.
Meaning
Value
Factory
value
Your
value
CV#1
Basic address part 1 group A
0...63
1
CV#3
Timer output 1,2 group A
0...255
0
CV#4
Timer output 3,4 group A
0...255
0
CV#5
Timer output 5,6 group A
0...255
0
CV#6
Timer output 7,8 group A
0...255
0
CV#7
Version number
-
>37
CV#8
Manufacturer number
-
157
CV#9
Basic address part 2 group A
0...7
0
CV#17
POM address, part 1
192...231
192
CV#18
POM address, part 2
0...255
0
CV#28
RailCom settings
0, 2
2
CV#29
Configuration register
0...40
8
CV#35
Basic address part 1 group B
0...63
2
CV#36
Basic address part 2 group B
0...7
0
CV#53
Fade down time
0…15
7
CV#54
0
0
CV#55
Fade up time
0…15
15
CV#56
Dimmer brightness
0...15
15
CV#57
Operation mode group A
1...8
2
CV#58
Operation mode group B
1...8
2
CV#59
Timer output 1,2 group B
0...255
0
CV#60
Timer output 3,4 group B
0...255
0

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CV-nr.
Meaning
Value
Factory
value
Your
value
CV#61
Timer output 5,6 group B
0...255
0
CV#62
Timer output 7,8 group B
0...255
0
CV#63
Speed chase light
0…255
64
CV#64
Flash & Strobe speed
0…255
1
CV#127
Sub version software
>=1
CV#128
Effect output 1, group A
0...255
1
CV#129
Effect output 2, group A
0...255
1
CV#130
Effect output 3, group A
0...255
1
CV#131
Effect output 4, group A
0...255
1
CV#132
Effect output 5, group A
0...255
1
CV#133
Effect output 6, group A
0...255
1
CV#134
Effect output 7, group A
0...255
1
CV#135
Effect output 8, group A
0...255
1
CV#136
Effect output 1, group B
0...255
1
CV#137
Effect output 2, group B
0...255
1
CV#138
Effect output 3, group B
0...255
1
CV#139
Effect output 4, group B
0...255
1
CV#140
Effect output 5, group B
0...255
1
CV#141
Effect output 6, group B
0...255
1
CV#142
Effect output 7, group B
0...255
1
CV#143
Effect output 8, group B
0...255
1
CV#144-
159
Setting the switch level of the used
outputs
0...255
see table
CV#160-
175
Validity mask of the outputs to the
switch commands
0...255
see table
4.7. Description of the configuration register
•CV#1, CV#9 decoder address group A: the decoder address of group A is
stored in two parts. The decoder address is valid for 4 consecutive point
addresses. If the decoder should switch with group 1 the points 1, 2, 3 and 4
enter as decoder address a 1 in CV#1 for the point address 5, 6, 7 and 8 a 2
has to be entered in CV#1, etc.. If the address range of CV#1 is not enough
(max. value is 63) CV#9 is also set.. The decoder address is calculated as
follows: decoder address = value of CV#9 * 64 + value in CV#1.
•CV#3 Timer for output 1, 2 of group A: the content of this CV specifies how long
the outputs 1 and 2 remain active after switching on before they are
automatically switched off again. The automatic switch-off is used for

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protection of your point to prevent burning out. The duty cycle is calculated as
follows: duty cycle = value in CV#3 * 0,064 seconds. Is the CV value 0, points
with a higher power consumption can be switched (correspondents with factory
settings).
In operation mode 1 the timer value for all 8 outputs of the group is equal.
•CV#4 Timer for output 3, 4 of group A : description see CV#3
•CV#5 Timer for output 5, 6 of group A : description see CV#3
•CV#6 Timer for output 7, 8 of group A : description see CV#3
•CV#7,8 : Here you will find the manufacturer number (kuehn – decoder
always have the number 157) and the version number of the decoder.
•CV#9 Part 2 of the decoder address group A: In CV#1 and CV#9 the decoder
address is stored, see description for CV#1.
•CV#17,18 POM - Address : the switch decoder can be programmed by CVs
also in built-in situation. Since most digital controllers only allow programming
on the main track with locomotive decoders, additionally the switch decoder
WD10 is able to receive an extended locomotive address for a later
programming on the main. The own point address for switching is not affected.
•CV#28 RailCom-settings: remark: channel 1 is not used in the WD10.
Bit-Nr.*)
Description
Bit-
value
CV-
value
1
RailCom data in channel 2 do not send
0
0
1
RailCom data in channel 2 send
1
2
•CV#29 Configuration register: defining the fundamental properties of the
decoder, e.g. RailCom® on/off and use of extended locomotive address for
programming on the main (POM). The CV values of the desired functions must
be added and the sum has to be stored in CV#29.
Bit-Nr.*)
Description
Bit-
value
CV-
value
RailCom out
0
0
3
RailCom on
1
8
POM- address (CV#17,18) do not use
0
0
5
POM- address (CV#17,18) use
1
32
*) By Lenz digital the bits are numbered opposite of the NMRA standard 1 – 8.
⇒Tip : common values for CV#29:
CV#29
Description
0
RailCom out, POM-address not active
8
RailCom on, POM-address not active
32
RailCom out, POM-Adresse active
40
RailCom on, POM-Adresse active

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•CV#35, CV#36 Decoder address group B: the decoder address of group B is
stored in two parts. The decoder address is valid for 4 consecutive point
addresses. If the decoder should switch with group 1 the points 1, 2, 3 and 4
enter as decoder address a 1 in CV#35 for the point address 5, 6, 7 and 8 a 2
has to be entered in CV#35 etc.. If the address range of CV#35 is not enough
(max. value is 63) CV#36 is also set. The decoder address is calculated as
follows: decoder address = value of CV#36 * 64 + value in CV#35.
•CV#53 Fade down time: time to fade down the light signal lights (simulation of
the afterglow of bulbs).
•CV#55 Fade up time: time to fade up the light signal lights.
•CV#56 Dimmer brightness: this value adjusts the maximum brightness of the
light.
•CV#57, CV58 : operation mode group A and B, see page 7
•CV#59 Timer for output 1, 2 of group B : description see CV#3
•CV#60 Timer for output 3, 4 of group B : description see CV#3
•CV#61 Timer for output 5, 6 of group B : description see CV#3
•CV#62 Timer for output 7, 8 of group B : description see CV#3
•CV#63 Speed of the light effect at construction sites/advertising lights: setting
the index speed. This setting applies both for group A and B.
•CV#64: Frequency (repetition rate) of the flash effect from the effect registers
CV#128 to CV#143
•CV#127 Software sub version: this CV is read-only and contains additional
information on the software sub version of the decoder (see also CV#7).
•CV#128 to CV#143 Effects: by means of this CVs you can set special light
effects for the switch outputs (e.g. flashing, strobe, fade down effect, etc.).
CV-nr.
Output
Group
0...128
128
1
A
129
2
A
130
3
A
131
4
A
132
5
A
133
6
A
134
7
A
135
8
A
136
1
B
137
2
B
138
3
B
139
4
B
Light effect:
0: normal ON/OFF (continuous light)
1: Impulse (one pulse)
2: Strobe
4: Flashing phase A
8: Flashing phase B
32: only fade up (only in operation mode 1)
64: only fade down (only in operation mode
1)
128: total brightness (dimmer)

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140
5
B
141
6
B
142
7
B
143
8
B
Hint: in operation mode 1 only fade up or
fade down can be set, however not both
effects simultaneously.
The numerical value of the desired light effect (see right column) is
programmed in the appropriate effect register. A value of 0 turns off all the
effects of the outputs and only the ON and OFF state are then available. The
flashing effects are opposite and therefore usable for an alternating flasher.
•CV#144 to CV#159 Output level of the switch outputs: these CVs determine
which level (ON or OFF) the switch outputs have, according to the validity mask
(see CV#160 to CV#175).
CV-nr.
Output
Outputs of group A
(switch command)
8
7
6
5
4
3
2
1
144
1st point red/“-“/è
128
64
32
16
8
4
2
1
145
1st point green/“+“/ç
128
64
32
16
8
4
2
1
146
2nd point red/“-“/è
128
64
32
16
8
4
2
1
147
2nd point green/“+“/ç
128
64
32
16
8
4
2
1
148
3th point red/“-“/è
128
64
32
16
8
4
2
1
149
3th point green/“+“/ç
128
64
32
16
8
4
2
1
150
4th point red/“-“/è
128
64
32
16
8
4
2
1
151
4th point green/“+“/ç
128
64
32
16
8
4
2
1
Outputs of group B
CV-nr.
Output
(switch command)
8
7
6
5
4
3
2
1
152
1st point red /“-“/è
128
64
32
16
8
4
2
1
153
1st point green/“+“/ç
128
64
32
16
8
4
2
1
154
2nd point red/“-“/è
128
64
32
16
8
4
2
1
155
2nd point green/“+“/ç
128
64
32
16
8
4
2
1
156
3th point red/“-“/è
128
64
32
16
8
4
2
1
157
3th point green/“+“/ç
128
64
32
16
8
4
2
1
158
4th point red/“-“/è
128
64
32
16
8
4
2
1
159
4th point green/“+“/ç
128
64
32
16
8
4
2
1
•CV#160 to Cv#175 Validity mask of the used outputs for each switching
command: By means of the CV#160 to 175, you can specify which outputs are
used by a certain switch command. The respective switching state (ON or OFF)
is defined in CV#144 to 159. Example: The first point of group A is switched by
two pushbuttons and the outputs 1 and 2 of the WD10 are used.
Through the numerical values 1+2=3 in the CV’s 160 and 161 the
corresponding assignment of the control command on the used outputs will be
carried out.

Manual WD10
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CV-nr.
Output
Outputs of group A
(switch command)
8
7
6
5
4
3
2
1
160
1st point red /“-“/è
128
64
32
16
8
4
2
1
161
1st point green/“+“/ç
128
64
32
16
8
4
2
1
162
2nd point red/“-“/è
128
64
32
16
8
4
2
1
163
2nd point green/“+“/ç
128
64
32
16
8
4
2
1
164
3th point red/“-“/è
128
64
32
16
8
4
2
1
165
3th point green/“+“/ç
128
64
32
16
8
4
2
1
166
4th point red/“-“/è
128
64
32
16
8
4
2
1
167
4th point green/“+“/ç
128
64
32
16
8
4
2
1
Outputs of group B
CV-nr.
Output
(switch command)
8
7
6
5
4
3
2
1
168
1st point red /“-“/è
128
64
32
16
8
4
2
1
169
1st point green/“+“/ç
128
64
32
16
8
4
2
1
170
2nd point red/“-“/è
128
64
32
16
8
4
2
1
171
2nd point green/“+“/ç
128
64
32
16
8
4
2
1
172
3th point red/“-“/è
128
64
32
16
8
4
2
1
173
3th point green/“+“/ç
128
64
32
16
8
4
2
1
174
4th point red/“-“/è
128
64
32
16
8
4
2
1
175
4th point green/“+“/ç
128
64
32
16
8
4
2
1
5. Troubleshooting
Reset:
The switch decoder WD10 can be put to the factory settings through the
programming button on the decoder or through DCC programming with the digital
controller. (default values).
•Reset with the programming button: press the programming button with power
switched on until the LED of group A and the LED of group B will light up
permanently and simultaneously. Now press the programming button 4 times
until both LEDs are flashing. Switch point 8 with the digital controller and the
decoder is set to the factory settings. Users of the Multimaus and the Lenz
compact version 3.0 have to use point number 12.
•Reset by DCC programming: program in CV#8 a value of 8.

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Short circuit:
In case of a short circuit/overload at one of the outputs, the affected group is
deactivated and the corresponding LED of the affected group will start to flash. At the
next switching command for the group the decoder is testing if the bug is still
present.. If there is no error any more, the output group can be operated as normal.
Hint: In pulsed operation of the group, an erroneous output can be defined by
switching all the 8 outputs step by step.
Other hints and tips for using the decoder are to be found on the internet:
www.kuehn-digital.de
6. Application notes
6.1. Connecting external pushbuttons
Points and signals with dual coil solenoids
can also be operated by external
potential-free contacts (e.g. reed
contacts) next to digital control. Thereby
you can, for example, switch semaphores
to „red” after the train has passed. When
using external contacts the solenoids
should have an end switch. You should
only use the external button, if there is no
digital command at the solenoid at the
same time.
Important hint: Only use potential-free contacts and use them only, if there is
no digital command at the same time!
6.2. Connecting LED
If you use LED equipped light signals, a
series resistor is required for operation with
the WD10 to limit the current.
Operation without a series resistor will
damage the LED!
Check your signal if this series resistor is
already installed. If not, you must install an

Manual WD10
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external resistor between the LED and the decoder output. The resistor value
should be in the range between 1kOhm to 2,7kOhm and depends on the used
power supply and the desired brightness of the LED.
6.3. Connecting light signals of the DR, DB, ÖBB, SBB
DB – light signals
Set the used output group of the decoder WD10 tot the operating mode „light
signals with max 4 signal images“ (operation mode 7). You can connect 2 light
signals with maximal 4 lights each to this output group. Signal 1 is connected to
the connectors 1 to 4 and signal 2 to the connectors 5 to 8.
In the sketch the necessary series resistors for the LED are not shown. Suitable
diodes are the switching diodes, for example, 1N4148. The point numbers in the
sketch are shown only as an example, the actual numbers correspond with the
point numbers that you selected during programming.
DR – Light signals type HL
Set the used output group of the decoder WD10 to the operating mode „light
signals with max 4 lights“ (operation mode 7). You can connect 2 light signals with
maximal 4 lights each to this output group. Signal 1 is connected to the
connectors 1 to 4 and signal 2 to the connectors 5 to 8.
The position „slow approach“ corresponds with the signal image Hl3a (without
light stripes). By connecting a light stripe to the connector 4 (8) you can generate
the signal images Hl2 and Hl3b. The position „shunting“ shows in conjunction

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with white LED the signal image Ra12. Connect the connector 4 (8) with the
connection yellow2 of your signal and you can create the signal image „Drive and
expect halt“ (HL10).
The point numbers in the sketch are shown only as an example, the actual
numbers correspond with the point numbers that you selected during
programming. In the sketch the necessary series resistors for the LED are not
shown. Suitable diodes are the switching diodes, for example, 1N4148.
ÖBB – Light signals
Set the used output group of the decoder WD10 to the operating mode „light
signals with max 4 lights“ (operation mode 7). You can connect 2 light signals with
maximal 4 lights each to this output group. Signal 1 is connected to the
connectors 1 to 4 and signal 2 to the connectors 5 to 8.
The position „slow approach“ can, depending on the wiring, have two meanings:
speed 40km/h if the yellow light is connected to connector 4 (8), or 60km/h if the
green light is connected to connector 4 (8).
The point numbers in the sketch are shown only as an example, the actual
numbers correspond with the point numbers that you selected during
programming. In the sketch the necessary series resistors for the LED are not
shown. Suitable diodes are the switching diodes, for example, 1N4148.

Manual WD10
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SBB – Light signals type L
Set the used output group of the decoder WD10 to the operating mode „light
signals with max 4 lights“ (operation mode 7). You can connect 2 light signals with
maximal 4 lights each to this output group. Signal 1 is connected to the
connectors 1 to 4 and signal 2 to the connectors 5 to 8.
The position „slow approach“ can, depending on the wiring, have two meanings:
Speed 40km/h if the 2nd green light is connected to connector 4 (8) or 60 km/h if
the 2nd yellow light is connected to connector 4 (8).
The decoder can also represent the signal image „drive with 40km/h and short
brake distance“, therefore connect both the yellow lamps with connector 3 (7).
The point numbers in the sketch are shown only as an example, the actual
numbers correspond with the point numbers that you selected during
programming. In the sketch the necessary series resistors for the LED are not
shown. Suitable diodes are the switching diodes, for example, 1N4148.

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6.4. Connecting light signals of the NS
Set the used output group of the decoder WD10 tot the operating mode „light
signals with max 4 signal images“ (operation mode 8). You can connect 2 light
signals with maximal 4 lights each to this output group. Signal 1 is connected to
the connectors 1 to 4 and signal 2 to the connectors 5 to 8.