Qdecoder Z2-8 Series User manual

decoder
...all-in-one decoder
Qelectronics GmbH
Am Sandberg 7a
01259 Dresden
[phone]
[phone]
[e-mail]
www.qdecoder.com
www.qdecoder.de
address:
phone:
fax:
email:
Please keep this guide for later reference!
Features
size 60 x 40 mm
voltage 9 – 18 V (DC- or AC)
rail voltage 9 – 27 V (programming track 12 - 18 V)
current
carrying
capacity
2 A continous current
built in over current and short circuit protection
terminals 8 outputs for e.g. 4 motor driven turnouts
protocols DCC or Märklin (Motorola)
Z2-8 Series
Z2-8+ Z2-8 Z2-8N
CV programming   
ashing / alternately ashing / pulse mode   
independent dimming of outputs (rotation speed)   
independent setting of fading times (acceleration / slow down)   
independent address setting   
sequence programming  
freely programmable signal aspect generator  
© Copyright Qelectronics GmbH 05/2011
Quick start guide
Z2-8N
for 4
motor driven turnouts
We congratulate you for choosing a Qdecoder to ll your model
railway with life. Besides this quick start guide you‘ll nd more
information on our web site www.qdecoder.com.
Please read this manual carefully prior installing your decoder.
If Qdecoder are used/applied differently than described in this
guide the warranty is lost. Do not exceed the maximum current or
voltage values given on the rear page of this guide. Do not expose
the decoders to direct sunlight or high humidity.
A Qdecoder in detail
Weiche 1
A0
2011
A1
Gleis
Trafo
Prog
Z2-8N
decoder
Weiche 2
A2 A3
Weiche 3
A4 A5
Weiche 4
A6 A7
function outputs
AC/DC supply
digital signal
(track)
programming button
LED
Qdecoder are absolutely at on the bottom. There are no parts
that could scratch the mounting surface. Thus it can be screwed
directly on the model railway layout or xed using a self adhesive
tape.
Restoring factory settings
Restoring factory settings of a Qdecoder is quite simple: Just press
the programming button for 10 seconds. What you see is:
• After one second the decoder enters the programming mode and
the LED lights – keep pressing the button
• After about 5 seconds the LED starts to ash. This ashing gets
faster and faster and after 10 seconds the factory settings are
restored – now release the button.

Decoder setup
• Connect the terminals Gleis to the digital signal (tracks). Use
twisted-pair cables.
• The terminals labeled Trafo supply energy to the decoder. These
terminals are either connected to the digital signal as well (as
shown on the right) or to an external AC or DC voltage between 12
and 18 V (left).
• Connect the turnout drives to the terminals labeled “Weiche 1” to
“Weiche 4”.The turnout drives are connected as follows:
Motors are connected to terminals and .
Turnout drives of LGB or Piko are wired the same way.
Using a Conrad motoric turnout driver connect both brown cables to one terminal
of the decoder and the red one to the other terminal.
Connect both the yellow and pink cable of Tillig turnout drivers together to one
terminal of the decoder and the red cable to the other terminal.
Weiche 1
A0 A1
Weiche 2
A2 A3
Weiche 3
A4 A5
Weiche 4
A6 A7
1
M
2
34
• The blue and the brown terminal are usually left open.
There is no short circuit protection between the decoder outputs
and the track signal! Short circuits can destroy the decoder.
Wei/Sig 1
A0 A1
Wei/Sig 2
A2 A3
Wei/Sig 3
A4 A5
Wei/Sig 4
A6 A7
Trafo
Gleis
2011
Wei/Sig 5
A8
A9
Wei/Sig 6
A10A11
Wei/Sig 7
A12A13
Wei/Sig 8
A14A15
Prog
Z1-16
decoder
digital signal
(tracks)
AC / DC
source
Wei/Sig 1
A0 A1
Wei/Sig 2
A2 A3
Wei/Sig 3
A4 A5
Wei/Sig 4
A6 A7
Trafo
Gleis
2011
Wei/Sig 5
A8
A9
Wei/Sig 6
A10A11
Wei/Sig 7
A12A13
Wei/Sig 8
A14A15
Prog
Z1-16
decoder
digital signal
(tracks)
AC / DC
source
Switching of motoric drives with only one decoder output and the track
signal is not possible with a Z2-8N. Use an Z2-8 (continous mode) or a
Z2-8+ (also in pulse mode) instead. Switching of turnouts with an extra
key button in parallel to the decoder output is not possible with a Z2-8N.
• Now you are ready to congure digital addresses and the
switching duration:
1. Choose an address for the turnouts or signals which should be
switched with your decoder. Using the programming button you
can select addresses like 1,5,9 and so on for the rst pair of
outputs. The other output pairs will be set automatically to the
following addresses.
2.Select the duration of the output pulse. For most
electromagnetic devices (e.g. LGB drives) ¼ second is appropriate.
Turnouts with auto shut off can be operated in continuous mode.
3. Now press the programming button
for one second, until the LED lights.
Release it afterwards. The decoder
entered programming mode.
Pressing the button again briey
nishes the programming mode.
address duration of pulse command
1st turnout
congured to
address 1
¼ second address 1
½ second address 1
1 second address 2
2 second address 2
continuous mode address 3
1st turnout
congured to
address 5
¼ second address 5
½ second address 5
1 second address 6
2 second address 6
continuous mode address 7
4.Send a digital command using your digital control according
to the previous table. Higher accessories addresses
can be congured by a programming command to
the „appropriate“ address group.
Example: To congure the rst turnout to address 201
and switching with 1 second pulses send the command
„address 202 “ .
5.If the decoder accepted a valid digital command the LED will
switch off. The decoder is now in the normal operation mode.
The Z2-8N is factory programmed to accept DCC commands and
switches the outputs with the addresses 1-4 with a duration of
¼ seconds. You can change to Motorola format sending a corre-
sponding command.
In pulse mode only one output will be switched at a time to avoid
high current spikes. Multiple switching commands are always
processed successively waiting for the congured pulse time to
expire.
Overload and short circuits
Qdecoder are protected against short circuit and over current
at the outputs. If the current rises above 2 A the outputs of the
decoder will be switched off and can only be reactivated after
resetting the decoder.
In case of an over current the LED ashes once for each function
output (A0 to A7) and afterwards stops ashing. Short ash
pulses show non-critical outputs, while long ash pulses indicate
an output, which should be checked.
In this case do the following:
1. Check and remove the cause of the short circuit.
2. Press the programming button briey or use the stop button
on your digital control to restart it. The conguration of the
decoder will not be changed.
Wei/Sig 1
A1
Wei/Sig 2
A2 A3
Wei/Sig 3
A4 A5
Wei/Sig 4
A6 A7
Trafo
2011
Wei/Sig 5
A8
A9
Wei/Sig 6
A10A11
Wei/Sig 7
A12A13
Wei/Sig 8
A14
Prog
Z1-16
decoder
programming
button
LED