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LDT TT-DEC-R Operation Instructions Manual

Turntable-decoder
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Littfinski DatenTechnik (LDT)
Kleiner Ring 9 • 25492 Heist • Tel: 04122 / 977 381 • Fax: 04122 / 977 382
Operation Instruction
TurnTable-Decoder
from the Digital-Professional-Series !
TT-DEC-R-G Part-No.: 010513
>> finished module in a case <<
TT-DEC-R
Rev. 1.2
Drehscheiben-Decoder
Digital-Profi werden!
Drehscheiben-Decoder
TT-DEC-R
(DCC und Märklin-Motorola)
Für Roco H0 Drehscheibe 42615.
Multi-Digital
C:
KL1
KL2
+ ~
- ~
red brown
red brown
16...18V~
K
J
K
J
Commands
Track
22...24V=
This product is not a toy! Not suitable for children under 14 years of age! The kit contains small parts, which should be
kept away from children under 3! Improper use will imply danger of injuring due to sharp edges and tips! Please store
this instruction carefully.
Multi-Digital
TT-DEC-R
IC3
IC4
7805
LM317
Littfinski DatenTechnik (LDT)
D-25492 Heist
www.ldt-infocenter.com
KL3
Littfinski DatenTechnik (LDT)
ST4
LED1
LED2
LED3
+
+
+
M2
green yellow
red
Suitable for the Roco H0 Turntable
42615.
The turntable can be equipped with 4
to 40 track connections.
Not
JP1
connection can be adjusted by a
2L 3L
minimum offset angle of 4.5 degree.
Suitable for the data formats of
Märklin Motorola and DCC.
Compatible
Märklin turntable electronic 7686.
Therefore particular simple control
via every digital command station
and via any model railway software
which supports the Märklin turntable
electronic 7686 and with a graphic
KL4
turntable imaging.
A
M1
Rückmeldg.
Feedback
aligned
opposite
commands
track
for
the

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  • Page 1 Kleiner Ring 9 • 25492 Heist • Tel: 04122 / 977 381 • Fax: 04122 / 977 382 Operation Instruction TurnTable-Decoder TT-DEC-R from the Digital-Professional-Series ! TT-DEC-R-G Part-No.: 010513 >> finished module in a case << Suitable for the Roco H0 Turntable 42615. The turntable can be equipped with 4 to 40 track connections.

  • Page 2: Table Of Contents

    Bridge track contact isolation Correct position of the turntable sliding switches and the setting or removing of the matching jumper JP1 of the TT-DEC-R TT-DEC-R connection to the digital layout and to the turntable 8 5.1. TT-DEC-R connection to the digital layout 5.2.

  • Page 3: Preface / Safety Instruction

    Many illustrations at this manual are identified with a file name (e.g. page_1165). You can find those files on our Web-Site at the section “Sample Connections” of the Turntable-Decoder TT-DEC-R. You can download the files as PDF-File and make a colored print at the DIN A4 format.

  • Page 4: Alterations On The Roco Turntable

    3.1. Free-wheeling diode soldering: The free-wheeling diode 1N4003 which is attached to each supplied Turntable-Decoder TT-DEC-R has to be soldered onto the pc-board of the under-floor drive to prevent the interference of the switching voltage of the interlock coil. For this procedure please take off the protection cover of the under-floor drive mechanic as described at the Roco Manual for the turntable and read the section “Maintenance of the drive”.
  • Page 5 TT-DEC-R – Manual 15-A11 Roco Drehscheibe 42615 alte Variante Roco Drehscheibe 42615 neue Variante Roco Turntable 42615 old version Roco Turntable 42615 new version Please solder the diode 1N4003 onto the soldering terminals of the pc-board as shown at the two detailed images.

  • Page 6: Motor Cable Soldering

    TT-DEC-R – Manual 3.2. Motor cable soldering: Each Turntable-Decoder TT-DEC-R will be supplied together with a 2m 2-poles motor connection cable. On one side is the cable is equipped with two inductors. Originally is the motor of the under-floor drive connected to the pc-board via two wires.
  • Page 7 TT-DEC-R – Manual To prevent an electrical contact to the PC-board by vibration of the motor please stick an isolation tape around the motor and over the two contact plates. The isolation tape should be long enough to isolate the contact plates as well under the pc-board.

  • Page 8: Bridge Track Contact Isolation

    Each Turntable-Decoder TT-DEC-R will be supplied together with a cable fastener for strain relief and for securing the motor cable onto the lower latch of the cover opening.

  • Page 9: Correct Position Of The Turntable Sliding Switches And The Setting Or Removing Of The Matching Jumper Jp1 Of The Tt-Dec-R

    If you use the turntable at the 2-conductor system (sliding switch at the turntable in position “=”) please remove the jumper JP1 at the TT-DEC-R. You can find this jumper at the right between the case cover and the heat sink of the Turntable-Decoder TT- DEC-R.
  • Page 10 TT-DEC-R – Manual The digital-voltage for the bridge track shall be connected to the two TT-DEC-R Rev. 1.2 Drehscheiben-Decoder Z805 LM317 clamps marked with 2L 3L Digital-Profi werden! “Track”. This digital Drehscheiben-Decoder voltage comes from the TT-DEC-R digital ring conductor (DCC und Märklin-Motorola)

  • Page 11: Tt-Dec-R Connection To The Turntable

    Insert the flat plug of the one side of the flat ribbon cable careful onto the pc-board socket of the TT-DEC-R that the black single wire of the flat ribbon cable shows into right direction as shown at the following picture.

  • Page 12: Tt-Dec-R Connection To New Version

    Insert the flat plug careful onto the pc-board socket of the TT-DEC-R in direction that the black single wire of the flat ribbon cable is showing to the left as shown at the following pictures.

  • Page 13: Turntable-Decoder Tt-Dec-R Programming

    The TurnTable-Decoder TT-DEC-R will be controlled by accessory addresses (turnout addresses) which will be used as well for switching of turnouts or signals. The command structure of the TT-DEC-R is compatible to the commands of the Märklin turntable-decoder 7686. The indication of the data format for the control of the TurnTable-Decoder TT-DEC-R from the command station (Märklin-Motorola or DCC) is not required.

  • Page 14: Turning Direction Testing

    By programming the track connections you have to prepare your TurnTable-Decoder TT-DEC-R to be able to recognize all available track connections and to turn the turntable bridge to the required track connection during the operation.
  • Page 15 TT-DEC-R – Manual Non-aligned opposite track connections can have an offset with a minimum angle of 4.5 degree. min. 4,5° Roco Drehscheibe 42615 Roco Turntable 42615 page_1159 During the programming process please define one track connection as track 1 as a so-called reference track.
  • Page 16 TT-DEC-R – Manual Test now the programming by sending the command >Turn<. If the bridge turns now by 180 degree is the programming successful. Programming sample: With reference to the programming process item 3 has the turntable bridge turned into the reference position.

  • Page 17: Bridge Track Polar Reversal (Only 2-Conductor Mode)

    But if the turntable bridge turns by 180 degree it will give a short circuit if the polarity of the bridge-track will not be matched to the polarity of the connection track. The Turntable-Decoder TT-DEC-R is able to change the bridge-track polarity short- circuit free. For the bridge-track is therefore no reverse-loop module required.
  • Page 18 If the turntable bridge is passing the parting-line between the two wiring sections the Turntable-Decoder TT-DEC-R will change the polarity of the bridge track provided that you programmed the parting-line. At the sample connection will be the parting-line on the track 4 because the polarity has to be changes if clockwise turning after track 4 and anti-clockwise after track 5 has the polarity to be changed.

  • Page 19: Turning Speed Adjustment

    If you turn the potentiometer center to the right the speed of the bridge will be slower. The Turntable-Decoder TT-DEC-R supports driving times of 30 to 45 seconds for one 180 degree turn of the bridge. You can test the turning time with the command >Turn<.

  • Page 20: Reference Track Synchronizing

    TT-DEC-R – Manual 6.6. Reference track synchronizing: If the image of the turntable position at the model railway software or on the display of the digital command station does not conform to the actual position of the turntable bridge you can carry out a synchronization.

  • Page 21: Programming- And Control-Table

    TT-DEC-R – Manual 6.8. Programming- and Control Table: page_545...

  • Page 22: Feedback Reports

    If the turntable bridge has reached the required position the Turntable-Decoder TT-DEC-R will send a feedback signal to the 2-poles clamp KL4 which is marked with “Feedback”. This signal can be evaluated from the model railway software and used for further control actions.
  • Page 23 TT-DEC-R – Manual 7.2. Feedback Reports “Position reached” and “Bridge Track occupied” with Feedback Module RS-8 for the RS-Feedback bus (Lenz Digital plus): Widerstand 1,5KOhm /0,6W Diode 1N4003 Überwachte Bereiche im Bestellbezeichnung: Res1K5 Bestellbezeichnung: 1N4003 Umfeld der Drehscheibe Resistor 1,5KOhm /0,6W...

  • Page 24: Assembly Plan

    Littfinski DatenTechnik (LDT) Kleiner Ring 9 D-25492 Heist/Germany Phone: 0049 4122 / 977 381 Fax: 0049 4122 / 977 382 Internet: http://www.ldt-infocenter.com Subject to technical changes and errors © 09/2017 by LDT Märklin, Motorola and Fleischmann are a registered trade mark.

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