tams elektronik LD-G-6 User manual

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LD-G-6 n
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Lokdecoder
für Gleichstrommotoren
DCC-Format n
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Locomotive Decoder
for DC engines
DCC-Format n
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Décodeur pour locomotive
avec moteur continu
Format-DCC n
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Locdecoder
voor gelijkstroommotoren
DCC-format n
nAnleitung
nManual
nMode d´emploi
nHandleiding
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Art.-Nr. 22-01-048
Art.-Nr. 22-01-049 n

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Deutsch 3
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English 21
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Français 39
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Nederlands 57
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© 11/2002 Tams Elektronik GmbH
Alle Rechte, insbesondere das Recht der
Vervielfältigung und Verbreitung sowie der
Übersetzung vorbehalten. Vervielfältigungen
und Reproduktionen in jeglicher Form
bedürfen der schriftlichen Genehmigung
durch die Tams Elektronik GmbH.
Technische Änderungen vorbehalten.
© 11/2002 Tams Elektronik GmbH
All rights reserved. No part of this
publication may be reproduced or
transmitted in any form or by any means,
electronic or mechanical, including
photocopying, without prior permission in
writing from Tams Elektronik GmbH.
Subject to technical modification.
© 11/2002 Tams Elektronik GmbH
Tout droits réservés, en particulier les droits
de reproduction et de diffusion ainsi que le
traduction. Toute duplication ou
reproduction sous quelque forme que ce soit
nécessite l´accord écrit de la societé Tams
Elektronik GmbH.
Sous réserve de modifications techniques.
© 11/2002 Tams Elektronik GmbH
Alle rechten voorbehouden. Niets uit deze
publicatie mag worden vermenigvuldigd
opgeslagen of openbaar gemaakt, zonder
voorafgaande schriftelijke toestemming van
Tams Elektronik GmbH.
Technische wijzigingen voorbehouden.
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LD-G-6 English
Page 21
Table of contents
How to use this manual 22
Intended use 22
Safety instructions 23
EMC declaration 25
INFORMATION: Speed mode 25
INFORMATION: Configuration variables 25
Operation overview 26
Technical specifications 28
Checking the package contents 28
Required tools and consumables 28
Safe and correct soldering 29
Performing a visual check 30
Mounting the locomotive decoder 30
Programming the locomotive decoder 33
Operation 36
FAQ 36
Manufacturer's note 37
Certification 37
Conditional warranty 37
Connections Diagrams (Fig. 1a and 1b) I
Circuit Diagram (Fig. 2) II
(Pages I to II in the centre of this handbook are removeable.)

English LD-G-6
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!
How to use this manual
If you have no specialist technical training, this manual gives step-by-
step instructions for safe and correct fitting of the module, and
operation. Before you start, we advise you to read the whole manual,
particularly the chapter on safety instructions and the FAQ chapter. You
will then know where to take care and how to prevent mistakes which
take a lot of effort to correct.
Keep this manual safely so that you can solve problems in the future. If
you pass the kit on to another person, please pass on the manual with it.
Intended use
Caution:
Integrated circuits are very sensitive to static electricity. Do not touch
components without first discharging yourself. Touching a radiator or
other grounded metal part will discharge you.
The module can be used according to the specifications of this manual.
It is designed for the mounting in a model railway locomotive with d.c.
motor. It evaluates the DCC format data sent by the digital control unit
unit to its address. The decoder controls the vehicle performance
(velocity, direction of travel, acceleration), switches the lighting and
seven further functions.
The module is not suitable for children under the age of 14.
Reading, understanding and following the instructions in this manual
are mandatory for the user.
Any other use of the module is inappropriate and invalidates any
guarantees.

LD-G-6 English
Page 23
Safety instructions
Mechanical hazards
Cut wires can have sharp ends and can cause serious injuries. Watch
out for sharp edges when you pick up the PCB.
Visibly damaged parts can cause unpredictable danger. Do not use
damaged parts: recycle and replace them with new ones.
Electrical hazards
§Do not touch powered, live components.
§Do not touch conducting components which are live due to
malfunction.
§Avoid short circuits.
§Do not connect the circuit to a higher voltage than designed.
§Impermissibly high humidity.
§Condensation building up can cause serious injury due to electrical
shock.
Take the following precautions to prevent this danger:
§Never perform wiring on a powered module.
§Only use low power for this module as described in this manual and
only use certified transformers.
§Connect transformers and soldering stations only in approved mains
sockets installed by an authorised electrician.
§Observe cable diameter requirements.
§Assembling the kit should only be done in closed, clean, dry rooms.
Beware of humidity.
§If the humidity in the room is too high, please do not start working
until after a minimum of 2 hours of acclimatisation.
§Use only original spare parts if you have to repair the kit or the
ready-built module.

English LD-G-6
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Fire risk
Touching flammable material with a hot soldering iron can cause life-
threatening fire, burns and toxic smoke. Connect your soldering iron or
soldering station only when actually needed. Use the correct soldering
iron or station and never leave a hot soldering iron or station
unattended.
Thermal danger
A hot soldering iron or liquid solder accidentally touching your skin can
cause skin burns. As a precaution:
§use a heat-resistant mat during soldering,
§always put the hot soldering iron in the soldering iron stand,
§point the soldering iron tip carefully when soldering, and
§remove liquid solder with a thick wet rag or wet sponge.
Dangerous environments
A working area that is too small or cramped is unsuitable and can cause
accidents, fires and injury. Prevent this by working in a clean, dry room
with enough freedom of movement.
Other dangers
Children can cause any of the accidents mentioned above because they
are inattentive and not responsible enough. Children under the age of
14 should not be allowed to work with this kit or the ready-built
module.
Little children can swallow small components with sharp edges. Life
threatening! Do not allow components to reach small children.
In schools, training centres, clubs and workshops, assembly must be
supervised by qualified personnel.
In industrial institutions, health and safety regulations applying to
electronic work must be adhered to.

LD-G-6 English
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EMC declaration
This product is developed in accordance with the European standards
EN 55014 and EN 50082-1, tested corresponding to the EC - directive
89/336/EWG (EMVG of 09/11/1992, electromagnetic tolerance) and
meets legal requirements.
To guarantee the electromagnetic tolerance you must take the
following precautions:
§Connect the transformer only to an approved mains socket installed
by an authorised electrician.
§Make no changes to the original parts and accurately follow the
instructions, circuit diagram and PCB layout included with this manual.
§Use only original spare parts if you have to repair the kit or the
ready-built module.
Information: Speed mode
Digital control units for DCC format can send 14, 28 or 128 speed levels
depending on the model and the settings. The number of speed levels
sent by the digital control unit (=speed mode) must be set at the
decoder as well.
The speed mode set at the digital control unit for a particular
locomotive address must correspond to the speed mode saved in the
locomotive decoder. Otherwise the performance of the locomotive may
be incorrect.
Information: Configuration variables (CVs)
You can set the so-called configuration variables of the decoder from
the central unit. The programming of the variables allows the
adjustment of the decoder to the particular driving characteristics of the
locomotive and to the individual needs of the user.

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The configuration variables are saved in the decoder and are also
preserved if the locomotive is switched off. Changing the configuration
variables is possible at any time from the digital control unit.
The configuration variables for the DCC format are standarised. The
variables that can be set depend on the decoder type.
Operation overview
The decoder is designed for operation in DCC format and can be
adjusted to one of 127 basic adresses or to one of 10.239 extended
adresses. It evaluates the digital data sent by the central unit to its
address and transmitts it to the locomotive. It is designed to be
controlled from digital control units that are set on the 14- or the 28-
speed mode.
The configuration variables of the LD-G-5
The following configuration variables (CVs) can be set from the digital
control unit:
§Basic address (CV 1)
§Starting voltage (CV 2)
§Acceleration rate (CV 3)
§Braking rate (CV 4)
§Maximum voltage (CV 5)
§PWM-Period (CV 9)
§Extended address (CV 17 and CV 18)
§Consist-Address (CV 19)
§Configuration data 1 (CV 29)
§Operation of the outputs X4 and X5 (CV 56): lighting according to
the direction of travel for forward and reverse motion or a fixed
light.

LD-G-6 English
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!
The locomotive decoder outputs
The locomotive decoder has seven outputs that can be connected to
accessories that have a current consumption of maximum 500 mA each.
Caution:
The maximum total current of all connected loads including the motor is
3A!
Output X4 Light forward motion
Output X5 Light reverse motion
Output X6 Optional accessory, switched via function F1
Output X7 Optional accessory, switched via function F2
Output X8 Optional accessory, switched via function F4
Output X9 Optional accessory, switched via function F6
Output X10 Optional accessory, switched via function F5
Function F0 (Light)
The lights for forward and reverse motion can be switched from the
digital control unit. You can either set the lighting according to the
direction of travel or a fixed light for both directions of travel by
programming the configuration variable CV 56.
Functions F1, F2, F4 to F6
These functions allow accessories connected to the assigned outputs to
be switched on or off. They are intended for optional accessories (e.g.
smoke generator, cab lighting, sound module).
Function F3
The Function F3 allows the switching to the shunting gear. This
facililtates a fine speed control for shunting operations at low speeds.
Higher speeds are not possible in this mode.

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Technical specifications
Data format DCC
Supply voltage 12-24 Volt digital voltage
Current consumption
(without connected loads) ca. 10 mA
Max. current for motor 3 A
Max. current per function output 500 mA
Max. total current 3 A
Protected to IP 00
Ambient temperature in use 0 - + 60° C
Ambient temperature in storage -10 - + 80° C
Comparative humidity allowed max. 85 %
Dimensions ca. 27 x 18 x 8 mm
Weight ca. 5 g
Checking the package contents
Check the contents of the package for completeness:
§1 module resp. 1 module with soldered NEM 652 interface connector
§1 manual
Required tools and consumables
Make sure you have the following tools, equipment and materials ready
for use:
§a heat-resistant mat
§a soldering iron stand with tip-cleaning sponge
§a small side cutter and wire stripper
§an electronic soldering iron (max. 30 Watt) with a fine tip
§tin solder (0,5 mm diameter)

LD-G-6 English
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!
§wire, diameter: >0,08 mm² up to a current of 1 A
resp. >0,22 mm² (from a current of more than 1 A)
§When the total current consumption is more than 1,5 A:
a heat sink, e.g. a SMD heat sink with a base of 7 x 19 mm
Safe and correct soldering
Caution:
Incorrect soldering can cause fires (through excessive heat). Avoid this
dager by reading the chapter Safety instructions again and following
the directions given.
If you have had training in soldering you can skip this chapter.
§When soldering electronic circuits never use soldering-water or
soldering grease. They contain acids that can corrode components
and copper tracks.
§Only use tin solder SN 60 Pb (i.e. 60 % tin, 40 % lead) with rosin-
based flux.
§Solder fast: long soldering can destroy components and copper
tracks, and damages through plated holes.
§Use a small soldering iron with max. 30 Watt. Keep the soldering tip
clean so the heat of the soldering iron is applied to the solder point
effectively.
§Apply the soldering tip to the soldering spot in such a way that the part
and the soldering spot are heated at the same time. Simultaneously
add solder (not too much). As soon as the solder becomes liquid take it
away. Hold the soldering tip at the spot for a few seconds so that the
tin solder finds its way, then remove the soldering iron.
§Do not move the component for about 5 seconds after soldering. A
glossy and perfect soldering spot should remain.
§To make a good soldering joint you must use a clean and
unoxidised soldering tip. Clean the soldering tip with a damp piece
of cloth, a damp sponge or a piece of silicon cloth.

English LD-G-6
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!
Performing a visual check
Damaged materials can cause injury. Parts damaged during transit can
also be dangerous.Check the module for damage, missing parts or poor
soldering. If you find damage, return the module for exchange.
Mounting the locomotive decoder
Open the locomotive housing. Locate the position for the decoder. Take
into account the room needed for the heat sink, if necessary.
Disconnect the motor from the rail current collector respectively the
change-over switch from the motor and rails if you have a locomotive
with electronic change-over switch.
Caution:
The interference suppression devices mounted to the motor or the
connecting wire must not be removed! Motor and interference
suppression devices are one unit. If even one part is removed, it can
cause extreme interference!
Connecting
Follow the connections diagrams (fig. 1a and 1b)!
Solder the connections to the rails at points X1 and X2 and the
connections to the motor at the points X11 and X12.
Connecting the lighting
Follow the connections diagrams (fig. 1a and 1b)!
Disconnect any existing diodes in the leads to the lamps. Connect the
lamps for forward motion to X4 and the lamps for reverse to point X5.
If the lamps are already connected with one side to locomotive ground,
you should solder a diode between the decoder and the lamp (fig. 1b).
If not, connect the second side of the lamps to the return conductor
(point X3) according to fig. 1a.

LD-G-6 English
Page 31
!
!
!
Connecting other accessories
Follow the connections diagrams (fig. 1a and 1b)!
Connect the accessories that are to be switched via the functions F1, F2
and F4 to F6 to the assigned points. Connect the accessorys‘ second
line to the return conductor for all functions (point X3).
Caution:
The return conductor for all functions (point X3) should under no
circumstances be connected to locomotive ground. Possible short
circuit! The locomotive decoder will be damaged in operation.
Caution:
You should always insulate loads that are connected to the return
conductor (point X3). The loads should not make contact with metal
parts of the locomotive. This can cause short circuiting and resulting
damage to the locomotive decoder!
Connecting the LEDs
The function outputs of the locomotive decoder switch against decoder
ground. For that reason you must connect the cathode (-) of the LED to
the output of the relevant function.
Caution:
If you use light-emitting diodes (LEDs) you must always operate them
via a series resistor.
LEDs are available in many different models. There are LEDs with 2-5
mA, but also LEDs with 15-30 mA power consumption. The series
resistor limits the current flow of the LED and will need to be calculated
for each model. Ask for the max current rating when buying your LEDs.
You can connect several LEDs in parallel to each output. In this case every
LED must have a series resistor of its own. If you connect several LEDs to
one output in series, only one series resistor is needed. The number of LEDs
connected in series to one output depends on the digital voltage.

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!
!
!
You can determine the number of the LEDs that can be connected in
series to one output from the following formula:
(number of LEDs + 2) x 1,5 < digital voltage
Fixing the locomotive decoder
After completing all connections fix the locomotive decoder with double-
sided adhesive tape, for example.
Caution:
The locomotive decoder can get warm during operation. For that
reason it should not be fixed with shrinking hose or hot adhesive.
Caution:
When the total current consumption is more than 1,5 A you should cool
the decoder. As a heat sink you could use a SMD heat sink with a base
of 7 x 19 mm. Fix the heat sink on the diodes D1 to D4, using an
appropriate glue ( e.g. super glue ). Take care that the heat sink does not
contact the adjoining IC1. Risk of short circuit!
Using an NEM 652 interface connector
Some locomotives already have an NEM 652 interface connector
mounted. Using a convenient connecting plug you save disconnecting
the connections and you do not need to solder at the locomotive.
The list shows how to connect the contacts of the interface connector
to the connecting points of the locomotive decoder.

LD-G-6 English
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!
Contact Connection Colour of cable Connecting points
1Motor connection 1 orange X11
2Lighting back (-) yellow X5
3Not used or F1 green X6
4Power supply left black X1
5Motor connection 2 grey X12
6Lighting front (-) white X4
7Common conductor
for all functions (+) blue X3
8Power supply right red X2
Attention:
When the current intensity is higher than 1A, the the wires should have
a diameter of at least 0,22 mm². This is especially important in the
wiring of the rail current collectors and the motor.
Programming the locomotive decoder
The locomotive decoder is programmed from the digtial central. See
chapter in the manual of your digital control unit where the
programming of configuration variables (CVs) is explained.
You can programm the following locomotive decoder variables:

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CV-name CV-
no. input value /
(state of
delivery)
remarks
Basic address 11 ... 127
(3)
Starting voltage 20 .... 255
(10) = the voltage to be output to the motor at speed level 1.
The value "0" corresponds to 0
Volt, the value "255" to the
max. voltage.
Acceleration rate 31 .... 255
(1) = length of the delay before the switching to the next higher
speed level when the
locomotive is accelerating
The delay is calculated as
follows:
(value of CV#3) x 0,9 sec. /
number of speed levels
Braking rate 41 ... 255
(1) = length of the delay before the switching to the next lower
speed level when the
locomotive is braking.
The delay is calculated as
described in CV#3.
Maximum voltage 52 ... 255
(255) = the voltage to be output to the motor at the highest speed
level.
The value "2" corresponds to
0,8 %, the value "255" to 100
% of the max. voltage.

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CV-name CV-
no. input value / (state of
delivery)
remarks
PWM-period 9160 .. 167
(165) value of CV#9 frequen
cy
160 2 kHz
161 1 kHz
162 500 Hz
163 250 Hz
164 125 Hz
165 62 Hz
166 31 Hz
167 15 Hz
Extended adress 17
18 1 ... 10239
(-)
Consist-address 19 1 ... 127
(0) = 2. address
Configuration
data 1 29 0,1,2,3,32,33, 34 or 35
(2)
This data is set by entering
the sum of the numerical
values.
Numerical value
direction
"standard" 0
reverse
direction 1
14 speed levels 0
28 speed levels 2
Basic adresses 0
Extended adresses 32

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!
CV-name CV-
no. input value /
(state of
delivery)
remarks
Operation of the
outputs X4 and
X5
56 0 or 1
(1) This data is set by entering the
sum of the numerical values.
Numerical value
Constant light 0
Lighting according to
direction of travel 1
Operation
Track sections with bad contacts (e.g. some types of points) may give
an unsatisfactory performance. You can improve the locomotive
performance by soldering a capacitor >100 µF / 35 V to the points X3
and X15 (see fig. 1a and 1b).
FAQ
§Parts are getting too hot and/or start to smoke.
Disconnect the system from the mains immediately!
Possible cause: one or more connections are soldered incorrectly.
àCheck the connections.
Possible cause: The connection of the motor is connected to
locomotive ground.
àDisconnect the connection from locomotive ground.
§The locomotive lighting does not correspond to its direction of travel.
Possible cause: The forward and reverse light connections have
been exchanged.
àCheck the connections.

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Possible cause: The connections of the motor to the points X11 and
X12 have been exchanged.
àExchange the connections.
§The lighting goes on and off when the speed levels are turned up
or
the lighting cannot be switched on or off.
Possible cause: The speed mode of the decoder and the digital
control unit do not correspond. Example: The central is set to the
mode 28 speed levels, but the decoder to the mode 14 speed
levels.
àChange the speed mode at the central and / or at the decoder.
If you cannot find the problem, please return the decoder for repair
(address on the cover page).
Manufacturer's note
According to DIN VDE 0869, the person who builds this kit or brings the
circuit into operation is the manufacturer of the product. If he sells the
product to another person he is responsible for passing on all the
relevant papers. Domestic appliances assembled from a kit are deemed
industrial products and must comply with health and safety regulations.
Certification
This product conforms with the EC- directive 89/336/EWG on
electromagnetic radiation and is therefore CE certified.
Conditional warranty
This product is guaranteed for two years. The warranty includes free
repair if the problem is due to material failure or incorrect assembly of
the module by us. We guarantee the quality of the components.
Other claims are excluded. By law, we are not responsible for damages
or secondary damages in connection with this product. We retain the

English LD-G-6
Page 38
right to repair, make improvements, supply spare parts or return the
purchase price.
The following invalidate the warranty:
§using an unsuitable soldering iron, solder containing liquid acids or
similar,
§if damage is caused by not following the instructions in this manual
or the circuit diagram,
§if the circuit has been altered and repair attempts have failed,
§if arbitrary changes in the circuit are made,
§if parts are stored incorrectly and if the wires to the switches, the
power resistors, etc. are made incorrectly,
§if the copper tracks or soldering points are damaged,
§if parts are placed incorrectly or the circuit is connected incorrectly,
§if damage occurs due to an overload of the circuit,
§if the wrong power or current is connected,
§if damaged by other persons,
§if damaged by the wrong use or abuse of the circuit,
§if parts are damaged due to static because they were touched
before a discharge is performed.