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tams elektronik LD-G-42 Manual

Locomotive decoders
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Locomotive decoders
LD-G-42 and LD-W-42
DCC
LD-G-42
Item numbers
41-04420
41-04421
41-04422
LD-W-42
Item numbers
41-05420
41-05421
tams elektronik
Manual
MM
n n n

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Summary of Contents for tams elektronik LD-G-42

  • Page 1 Manual Locomotive decoders LD-G-42 and LD-W-42 LD-G-42 Item numbers 41-04420 41-04421 41-04422 LD-W-42 Item numbers 41-05420 41-05421 tams elektronik n n n...

  • Page 2: Table Of Contents

    6.1. Connector pin assignment LD-G-42........24 6.2. Connector pin assignment LD-W-42........25 6.3. Using decoders with interface connectors......26 6.4. Use of the LD-G-42 in locomotives with a.c. motor.....27 6.5. Mounting decoders without interface.........27 6.6. Connecting LEDs to the function outputs......30 6.7. Connecting inductive loads..........32 6.8.
  • Page 3 11. EU declaration of conformity............66 12. Declarations conforming to the WEEE directive......66 © 07/2020 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.

  • Page 4: Getting Started

    Intended use The locomotive decoders LD-G-42 and LD-W-42 are designed to be operated according to the instructions in this manual in model building, especially in digital model railroad layouts. Any other use is inappropriate and invalidates any guarantees.
  • Page 5 > 0,04 mm² for the connections to the function outputs,  > 0,05 mm² for the connections to the motor and current collectors. If you want to connect a decoder LD-G-42 to an a.c. motor you need:  a load control adapter LRA (item number70-02105 or 70-02106) or ...

  • Page 6: Safety Instructions

    English LD-G-42 and LD-W-42 In order to bridge short current interruptions you need:  an electrolytic capacitor with a capacity of 100 to 470 µF and a proof voltage of minimum 35 V or  a buffer circuit, e.g. USV-mini 0.47 (capacity 0.47 F, item no. 70-02215 or 70-02216) USV mini 1.0 (capacity 1.0 F, item no.
  • Page 7 LD-G-42 and LD-W-42 English Electrical hazards  Touching powered, live components,  touching conducting components which are live due to malfunction,  short circuits and connecting the circuit to another voltage than specified,  impermissibly high humidity and condensation build up can cause serious injury due to electrical shock.
  • Page 8 English LD-G-42 and LD-W-42 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, ...

  • Page 9: Safe And Correct Soldering

    LD-G-42 and LD-W-42 English 3. Safe and correct soldering Caution: Incorrect soldering can cause dangers through fires and heat. Avoid these dangers by reading and following the directions given in the chapter Safety instructions.  Use a soldering iron with temperature control, which you set to approx.

  • Page 10: Operation Overview

    English LD-G-42 and LD-W-42 4. Operation overview 4.1. Digital operation The locomotive decoder is a multiple protocol decoder, that can operate with and automatically recognise both DCC or Motorola formats. Motorola (MM) Number of 127 basic addresses or addresses 10.239 extended...

  • Page 11: Analogue Mode

    LD-G-42 and LD-W-42 English 4.2. Analogue mode The locomotive decoder can also be used in analogue model railway layouts run with an A.C. or D.C. speed control. Please note: The use of an A.C. speed control is factory set. The change is only possible by reprogramming the CV / the register with a digital control unit, so not in pure analogue operation.
  • Page 12 Other functions active in analogue mode The settings made in the CVs / registers for  the maximum speed  the starting and braking decelerations  and the load control (for the LD-G-42) are also taken over in analogue mode. Page 12...

  • Page 13: Overload Protection

    LD-G-42 and LD-W-42 English 4.3. Overload protection The LD-G-42 and LD-W-42 locomotive decoders have overload protection which protects them from damage if the permissible total current is exceeded or if the motor output is short-circuited (the maximum form of an overload). If an overload is detected, the motor that normally requires the most current is switched off.
  • Page 14 English LD-G-42 and LD-W-42 Attention: By lowering the overload response threshold, the influence of short- term interference voltages from the motor or connected consumers is to be reduced. This prevents the motor from being switched off although the permissible total current has not been exceeded. Before...

  • Page 15: Motor Control

    60 Hz AC motors Load control The LD-G-42 for DC motors has a load control, the LD-W-42 for AC motors does not have this function. The load control influences the motor voltage to keep the locomotive with a set speed level at constant velocity, independent of additional loads (e.g.
  • Page 16 English LD-G-42 and LD-W-42 locomotive runs too slowly. In case the set value is too high the locomotive stutters while moving. KI: The integral component of the load control ensures the remaining difference between the set and the present value is reduced to 0 and so for the correction of very small divergences.

  • Page 17: Automated Processes

    LD-G-42 and LD-W-42 English Shunting gear It is possible to switch into the shunting gear mode via a function key (in state of delivery F3), when so programmed. In the shunting gear mode, the velocity of all speed levels is reduced to approx. 50 % compared to the set velocity.

  • Page 18: Function Outputs

    English LD-G-42 and LD-W-42 4.6. Function outputs The decoder has four function outputs (F0f, F0r, AUX1, AUX2) with a maximum current of 300 mA each for the connection of additional accessories (e.g. lighting, smoke generator, electrical coupling). Note: The maximum total current of the decoder (including motor) is 1,500 mA.
  • Page 19 LD-G-42 and LD-W-42 English Programming the effects Switching depending on the direction of travel Function Mapping Shunting light Function Mapping Inverted switching CV programming (CV 58-60) When set to position "on" the assigned function output will be switched off, when set to position "off"...

  • Page 20: Triggering The Actions

    English LD-G-42 and LD-W-42 4.7. Triggering the actions The function outputs are switched on and off and the shunting gear and acceleration/deceleration are (de)activated:  the assigned function(s) and / or  automatically via the switching input. The switching input is triggered via external contacts, e.g.
  • Page 21 These statistics allow conclusions on the transmission quality between vehicle and rails. The locomotive decoders LD-G-42 and LD-W-42 can send the following dynamic RailCom information: ...

  • Page 22: Technical Specifications

    Proof voltage: > 35 V Connection for control line of according to RCN 530 buffer circuit (switches to ground) Interface LD-G-42: 8 poles according to (depending on the decoder type NEM 652 | LD-W-42: --- and the version) Protected to IP 00 Ambient temperature in use 0 ...

  • Page 23: Connections

    LD-G-42 and LD-W-42 English 6. Connections Avoid irreparable damage! Observe the following instructions to avoid damage to the decoder: 1. No conductive connections to metal parts or rails! Avoid all conductive connections between the decoder or consumers connected to the return conductor for all functions on the one hand, and metal parts of the vehicle or the rails on the other hand.

  • Page 24: Connector Pin Assignment Ld-G-42

    English LD-G-42 and LD-W-42 6.1. Connector pin assignment LD-G-42 LD-G-42 Colour Connection of wire (for use of settings in state of delivery) Left track black Left current collector (or slider) Negative pole (-) of buffer capacitor / Earth connection IN Positive pole (+) of buffer capacitor →...

  • Page 25: Connector Pin Assignment Ld-W-42

    LD-G-42 and LD-W-42 English 6.2. Connector pin assignment LD-W-42 LD-W-42 Colour Connection of wire (for use of settings in state of delivery) Left track brown Left current collector (or slider) Negative pole (-) of buffer capacitor / Earth connection IN Positive pole (+) of buffer capacitor →...

  • Page 26: Using Decoders With Interface Connectors

    Using a decoder with a suitable connector saves separating the connections and soldering works at the locomotive. The LD-G-42 locomotive decoder is available with 8-pin interface according to NEM 652. The interface enables you to connect the decoder to the motor, the rail current collectors, the lighting and additional accessories.

  • Page 27: Use Of The Ld-G-42 In Locomotives With A.c. Motor

    The LD-G-42 has been designed to control direct current (d.c.) motors, for that reason it cannot be connected directly to alternating current (a.c.) motors. You can control a.c. motors with the LD-G-42 and benefit of the load control when ...
  • Page 28 English LD-G-42 and LD-W-42 Connecting the decoder to the motor Connect the decoder to the rail current collectors and to the motor according to the connection drawings Fig. 1 or Fig. 2. Only for analogue operation on 2-wire DC systems: If the direction of...
  • Page 29 LD-G-42 and LD-W-42 English Connecting accessories to the outputs Disconnect any existing diodes in the leads to the lamps, otherwise the lamps might not light. Connect the lamps and the accessories to the function outputs of the decoder. If the lamp or the accessory is already connected with one side to vehicle ground, the connection is complete.

  • Page 30: Connecting Leds To The Function Outputs

    English LD-G-42 and LD-W-42 6.6. Connecting LEDs to the function outputs The decoder´s function outputs switch respective to the decoder ground. For that reason you must connect the cathodes (-) of the LEDs to the function outputs and the anodes (+) to the decoder´s common return conductor for all function outputs (RC).
  • Page 31 LD-G-42 and LD-W-42 English In order to determine the necessary series resistor for a serial LED´s connection first add the forward voltages of all LEDs. The forward voltages depend on the lighting colour and should be given in the technical specifications. In case there is no manufacturer information available, you can take as a basis 4 V for white and blue LEDs and 2 V for yellow, orange, red and green LEDs.

  • Page 32: Connecting Inductive Loads

    English LD-G-42 and LD-W-42 6.7. Connecting inductive loads When connecting inductive loads (e.g. TELEX couplings, relays or other accessories with coils), you should switch a free-wheeling diode (e.g. 1N400x) in parallel, in order to avoid damage at the output. Check to connect the anode of the diode to the function output.

  • Page 33: Connecting The Switching Input

    LD-G-42 and LD-W-42 English 6.8. Connecting the switching input The switching input switches against decoder ground and can therefore be connected to all (external) circuits that can be used to establish a ground connection. It is possible, for example, to connect reed contacts or Hall sensors which establish the ground connection as soon as they enter the magnetic field of a permanent magnet.
  • Page 34 English LD-G-42 and LD-W-42 Connection of a Hall sensor Pay attention to the correct polarity when connecting Hall sensors. Assignment of the connections: Hall sensor Decoder Mixing up the connections "ground Ground terminal Ground terminal terminal" and "supply () (GND) voltage terminal"...

  • Page 35: Connecting A Buffer Capacitor/Buffer Circuit

    LD-G-42 and LD-W-42 English 6.9. Connecting a buffer capacitor/buffer circuit In sections with bad contact to the rails (e.g. when running over turnouts) or with a (e.g. construction-related) bad current consumption of the locomotive, the power supply of the decoder can be interrupted briefly.

  • Page 36: Fixing The Decoder

    English LD-G-42 and LD-W-42 Connection of a buffer circuit The capacity of buffer circuits is considerably larger than that of buffer capacitors (e.g. UPS-mini with 0.47 F, 1.0 F or 1.5 F). Use a buffer circuit according to RCN 530 which is connected to ground, e.g. UPS- mini, item numbers 70-0221x, 70-0222x, 70-0223x..

  • Page 37: Programming

    LD-G-42 and LD-W-42 English 7. Programming Programming with DCC central units You can program the configuration variables (CV) of the decoder from the digital central unit, you can use main track programming as well. See the chapter in the manual of your central unit where the byte wise programming of configuration variables (CVs) (Direct programming) and main track programming (POM) are explained.
  • Page 38 English LD-G-42 and LD-W-42 Put the vehicle on a track oval or a track section connected to the central unit’s track output (not to the connection for the programming track). Make sure no other vehicle than the one you intend to program is set on the track as the decoder inside this vehicle might be programmed as well.

  • Page 39: Configuration Variables And Registers

    LD-G-42 and LD-W-42 English Programming with the Central Station I and the Mobile Station With the Central Station I or the Mobile Station of Märklin** you can program the registers. Select the article number 29750 from the locomotive database and program the decoder as described for this article in the Central Station´s or Mobile Station´s manual.

  • Page 40: Basic Settings

    English LD-G-42 and LD-W-42 8.1. Basic settings Name Input values Remarks and tips (Default) Configuration 0 ... 255 Direction "Standard" data 1 (14) Reverse direction 14 speed levels 28 or 128 speed levels Analogue recognition off Analogue recognition on RailCom off...

  • Page 41: Setting The Motor Control

    English 8.2. Setting the motor control Optimisation of the driving characteristics By adjusting the load control (LD-G-42) and the motor characteristics (LD-G-42 and LD-W-42) the decoder is adapted to the individual characteristics of the locomotive motor. Please note: The installation of a decoder generally increases the effects of vehicle defects on driving characteristics.
  • Page 42 English LD-G-42 and LD-W-42 Setting the parameters of the load control (LD-G-42 only) Name Input values Remarks and tips (Default) Parameter of 0 ... 255 (32) = Proportional component of the load control KP load control The parameter KP defines the basic speed. A too small value → locomotive too slow. A too high value →...
  • Page 43 LD-G-42 and LD-W-42 English Setting the motor characteristic curve Name Input values Remarks and tips (Default) Starting 0 … 255 = Voltage to be output to the voltage motor at speed level 1. (LD-G-42 : 4) (Starting (LD-W-42: 64) 0 = 0 Volt velocity) 255 = max.

  • Page 44: Function Mapping

    According to RCN-227, eight configuration variables (CVs) are assigned to each function (F0 to F28) (four each for forward ("f") and reverse ("r"). Six of them are used for the locomotive decoders LD-G-42 and LD-W-42 (3 for forward and 3 for reverse): ...
  • Page 45 LD-G-42 and LD-W-42 English Special off/on with Outputs in use functions function AUX1 AUX2 F0, F1, F2, Values …, F28 (on) (off) 0, 1, 2,... 28, Input 0, 1, 2, 3, 4,…, 31 0, 4, 8, 12 values Special off/on with...
  • Page 46 English LD-G-42 and LD-W-42 Special off/on with Outputs in use functions function AUX1 AUX2 F0, F1, F2, Values …, F28 (on) (off) 0, 1, 2,... 28, Input 0, 1, 2, 3, 4,…, 31 0, 4, 8, 12 values Special off/on with...
  • Page 47 LD-G-42 and LD-W-42 English Special off/on with Outputs in use functions function AUX1 AUX2 F0, F1, F2, Values …, F28 (on) (off) 0, 1, 2,... 28, Input 0, 1, 2, 3, 4,…, 31 0, 4, 8, 12 values Special off/on with...
  • Page 48 English LD-G-42 and LD-W-42 Special off/on with Outputs in use functions function AUX1 AUX2 F0, F1, F2, Values …, F28 (on) (off) 0, 1, 2,... 28, Input 0, 1, 2, 3, 4,…, 31 0, 4, 8, 12 values Special off/on with...
  • Page 49 LD-G-42 and LD-W-42 English Example: Programming for shunting operation Hint: The connection of the return conductor is not shown. off/on with Outputs function 1 … 254 Values CV-No. CV-No. Set value Set value name F0 f (outputs F0f and AUX1)
  • Page 50 English LD-G-42 and LD-W-42 Example: Programming for rear end signal "off" with coupled carriages Hint: The connection of the return conductor is not shown. off/on with Outputs function 1 … 254 Values CV-No. CV-No. Set value Set value name F0 f...

  • Page 51: Effects Of The Outputs

    LD-G-42 and LD-W-42 English 8.4. Effects of the outputs Assignment of the effects to the outputs Name Input values Remarks and tips (Default) 0 ... 255 (0) no effects 0 ... 255 (0) Function inverted AUX1 0 ... 255 (0)
  • Page 52 English LD-G-42 and LD-W-42 Kicking time Name Input values Remarks and tips (Default) Kicking time Setting common for all outputs. 0 ... 255 ("moment- 0 = shortest kick time (32) function") 255 = longest kick time (= 25.5 seconds) Increasing the input value by "1"...

  • Page 53: Settings For The Switching Input

    LD-G-42 and LD-W-42 English 8.5. Settings for the switching input Name Input values Remarks and tips (Default) Assignment of 1 … 255 (0) the functions to the switching input Minimum 0 … 255 (0) = Time period for which the...

  • Page 54: Railcom Settings

    English LD-G-42 and LD-W-42 8.6. RailCom settings Name Input values Remarks and tips (Default) Dynamic 0,1 (0) RailCom Reception statistics: information The decoder keeps statistics on all DCC packets and reports the number of faulty packets / total number of packets in %.

  • Page 55: Settings For Driving Operation

    LD-G-42 and LD-W-42 English 8.7. Settings for driving operation Consist operation As a standard, in multiple units (consist operation) you can only control velocity and direction. In CV 21 and 22 you can define additional functions to be switched when using the address for multiple units defined in CV 19.
  • Page 56 English LD-G-42 and LD-W-42 Braking behaviour with DC voltage Name Input values Remarks and tips (Default) Braking 0 … 3 No braking behaviour with d.c. voltage with DC Braking with voltage negative d.c. voltage Braking with positive d.c. voltage Tip: It is standard to switch over into analogue mode when applying a d.c. voltage at the rails.

  • Page 57: Settings For Analogue Mode

    LD-G-42 and LD-W-42 English 8.8. Settings for analogue mode Name Input values Remarks and tips (Default) Analogue 0, 1 (1) = Procedure triggering a change mode of direction Change of polarity (d.c. layouts) Overvoltage impulse (a.c. layouts) Functions 0 … 255...

  • Page 58: Response Threshold Of The Overload Protection

    English LD-G-42 and LD-W-42 8.9. Response threshold of the overload protection Name Input values Remarks and tips (Default) Duration of 0 … 32 (2) Time period in which an the overload overload occurs before the ("short-circuit motor is switched off.

  • Page 59: Setting The Address

    LD-G-42 and LD-W-42 English 8.10. Setting the address Name Input values Remarks and tips (Default) Basic address 1 ... 255 Range of values: in DCC format: 1 ... 127 in MM format: 1 … 255 Tip: If a value higher than 127 is set for the basic address and the...

  • Page 60: Auxiliary Functions

    English LD-G-42 and LD-W-42 8.11. Auxiliary functions Name Input values Remarks and tips (Default) Reset 0 ... 255 Any input value restores the settings in state of delivery. Decoder lock 0 ... 255 (3) Changing the CV values of the decoder is only possible if the 0 ...

  • Page 61: Information

    LD-G-42 and LD-W-42 English 8.12. Information Name Input values Remarks and tips (Default) Version Read only in DCC format! Manufacturer --- (62) Read only in DCC format! Permitted --- (53) Readable in DCC format only! modes of Defines the permitted modes of...

  • Page 62: Check List For Troubleshooting

    English LD-G-42 and LD-W-42 9. Check list for troubleshooting  Parts are getting very hot and/or start to smoke. Disconnect the system from the mains immediately! Possible cause: one or more connections are soldered incorrectly. → Check the connections. Possible cause: Short circuit between the decoder or accessories connected to the retrun conductor for all functions and metal parts of the locomotive or the rails.
  • Page 63 LD-G-42 and LD-W-42 English and the additional consumers. Tip: To move the locomotive to an accessible location, it may be sufficient to reduce the speed level considerably. Possibly the decoder is not suitable for installation in this loco.  The CV values cannot be read out by RailCom.
  • Page 64 English LD-G-42 and LD-W-42 Possible cause: The assignment of the function to the switching input is wrong or the minimum switch-on time is too short. → Check the inputs in CV 62 and 97. Problems in analogue mode  The locomotive does not run in analogue mode, the decoder does not work.

  • Page 65: Guarantee Bond

    LD-G-42 and LD-W-42 English 10. Guarantee bond For this product we issue voluntarily a guarantee of 2 years from the date of purchase by the first customer, but in maximum 3 years after the end of series production. The first customer is the consumer first...

  • Page 66: Eu Declaration Of Conformity

    English LD-G-42 and LD-W-42 11. EU declaration of conformity This product conforms with the EC-directives mentioned below and is therefore CE certified. 2004/108/EG on electromagnetic. Underlying standards: EN 55014-1 and EN 61000-6-3. To guarantee the electromagnetic tolerance in operation you must take the following precautions: ...
  • Page 67 LD-G-42 and LD-W-42 English Page 67...
  • Page 68 Information and tips: http://www.tams-online.de Warranty and service: Tams Elektronik GmbH Fuhrberger Straße 4 DE-30625 Hannover fon: +49 (0)511 / 55 60 60 fax: +49 (0)511 / 55 61 61 e-mail: modellbahn@tams-online.de...

This manual is also suitable for:

Ld-w-4241-0442041-0442141-0442241-0542041-05421

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