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tams elektronik LD-G-41 Manual

Locomotive decoder
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LD-G-41
Locomotive decoder
Manual
Locomotive Decoder
with Next18 interface
Item no. 41-04414
MM
DCC DCC-A
tams elektronik
n n n

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Summary of Contents for tams elektronik LD-G-41

  • Page 1 LD-G-41 Locomotive decoder Manual Locomotive Decoder with Next18 interface Item no. 41-04414 DCC DCC-A tams elektronik n n n...
  • Page 2 © Tams Elektronik GmbH All rights reserved, in particular the right of reproduction, distribution and translation. Copies, reproductions and alterations in any form require the written permission of Tams Elektronik GmbH. We reserve the right to make technical changes. Printing the manual The formatting is optimised for double-sided printing.

  • Page 3: Table Of Contents

    3. Connections.......................21 3.1. Safety instructions....................21 3.2. Safe and correct soldering...................22 3.3. Avoiding irreparable damage to the decoder!............23 3.4. Pin assignment LD-G-41 | Front side..............24 3.5. Pin assignment LD-G-41 | Rear side..............25 3.6. Connecting a backup capacitor or buffer circuit............25 4. Programming......................26 4.1.
  • Page 4 LD-G-41 tams elektronik 5.6. Effects of the outputs..................41 5.7. RailCom and DCC-A settings................43 5.8. Settings for driving operation................44 5.9. Settings for analogue mode................46 5.10. Sensivity of the overload protection..............46 5.11. Auxiliary functions....................47 5.12. Information......................47 6. Checklist for troubleshooting and error correction............48 6.1.

  • Page 5: Getting Started

    LD-G-41 1. Getting started This manual will help you step by step to mount and commission the decoder safely and correctly. Before you connect the decoder and put it into operation, please read this manual completely, particularly the chapter on safety instructions and the checklist for trouble shooting.

  • Page 6: Intended Use

    LD-G-41 tams elektronik 1.3. Intended use The locomotive decoder LD-G-41 is 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 7: Operation Overview

    LD-G-41 2. Operation overview 2.1. Digital operation The locomotive decoder LD-G-41 is a multiple protocol decoder, that can operate with and automatically recognise both DCC or Motorola formats. Motorola II (MM II) according to NMRA and RCN-standard Number of 127 basic addresses or 10.239...

  • Page 8: Analogue Mode

    LD-G-41 tams elektronik 2.2. Analogue mode The locomotive decoder LD-G-41 can also be used in analogue model railway layouts run with a DC speed control. Automatic analogue recognition When putting the vehicle on the rails the decoder recognizes automatically if it is run in analogue or digital mode and sets the corresponding operation mode.

  • Page 9: Overload Protection

    LD-G-41 2.3. Overload protection The locomotive decoder LD-G-41 has an overload protection which protects it from damage in case of exceeding the permissible total current or a short circuit at the motor output (the maximum form of an overload). If an overload is detected, the motor is switched off and lights that are switched with F0f or F0r flash.

  • Page 10: Motor Control

    2.4. Motor control Pulse width modulation The LD-G-41 is designed to optimally control DC motors. With a PWM of 25 kHz, it is also suitable for coreless motors. Load control The LD-G-41 has a load control. 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 11 LD-G-41 Velocity characteristic By adjusting the starting, middle and maximum speed, the decoder can be adapted to the driving characteristics of the motor and the characteristic driving speeds of the locomotive type. From these 3 points the decoder generates a speed characteristic curve which is linear between the starting and middle speed and between middle and maximum speed.
  • Page 12 CV and on the speed level when the braking process is triggered. An exact stop at stopping points is not possible. For the LD-G-41 a constant braking distance can be defined, which the locomotive should cover when changing from any speed level to speed level 0. The braking distance corresponds to the distance that the locomotive covers with the set brake delay at the highest possible speed level until it comes to a stop.

  • Page 13: Automated Processes

    / a function key. 2.5.1. ABC braking procedure The LD-G-41 locomotive decoder, with the appropriate CV setting, detects when entering an ABC braking section that an asymmetrical track voltage is present and then automatically reduces the driving speed with the set brake delay or braking distance. It can be set to...

  • Page 14: Braking At Dc Voltage

    2.5.2. Braking at DC voltage The locomotive decoder LD-G-41 reacts to the application of a pure DC voltage (e.g. Märklin** braking section) with the corresponding CV setting and then automatically reduces the driving speed with the set brake delay or the set braking distance.

  • Page 15: Shunting Function

    100 mA each  2 unamplified outputs (AUX5 and AUX6) In addition, the LD-G-41 has two further connections which, depending on the CV settings, can be used as  2 further unamplified outputs (AUX3 and AUX4) or ...
  • Page 16 LD-G-41 tams elektronik Function mapping according to RCN-227 Assigning the functions to the outputs follows RailCommunity standard RCN-227. It is possible to assign one or several outputs to each function (F0 to F28, seperately for forward and backward motion for each function). In addition, it is possible to assign another function as an "OFF"-switch to the functions.
  • Page 17 LD-G-41 Effects of the function outputs MARs-Light (only F0f, F0r, AUX1 and AUX2): To generate the CV programming additional warning light typical of American locomotives (fading in CV 55...58 and out at short intervals), the following settings must be made for...

  • Page 18: Triggering The Actions

    LD-G-41 tams elektronik Connection for backup capacitor or buffer circuit The LD-G-41 has an additional connection for an external backup capacitor or a buffer circuit, but no special control output for buffer circuits. Suitable for bridging short-term current interruptions: ...

  • Page 19: Feedback With Railcom

    LD-G-41 2.8. Feedback with RailCom RailCom transmitter The locomotive decoder LD-G-41 is a RailCom transmitter and fulfils the requirements of the RailCommunity standard RCN-217 "RailCom DCC feedback protocol" for mobile decoders (vehicle decoders). Sending RailCom messages is possible in layouts with a DCC signal on the rails only. It is not possible to use the RailCom-function in a pure Motorola environment.
  • Page 20 LD-G-41 tams elektronik Transfer of decoder parameters in the DCC-A registration procedure The registration of the decoder with the central unit takes place automatically as soon as the vehicle is placed on the track. Some of the parameters can be adjusted individually with the help of the central unit.

  • Page 21: Connections

    LD-G-41 3. Connections 3.1. Safety instructions Caution: Integrated circuits (ICs) are inserted on the decoder. They are sensitive to static electricity. Do not touch components without first discharging yourself. Touching a radiator or other grounded metal part will discharge you.

  • Page 22: Safe And Correct Soldering

    LD-G-41 tams elektronik 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 23: Avoiding Irreparable Damage To The Decoder

    LD-G-41  After soldering, check (preferably with a magnifying glass) whether connections or tracks have been bridged with solder by mistake. This can lead to malfunction or destruction of components or, in the worst case, the complete circuit. You can re-liquefy excess solder with the clean hot soldering tip.

  • Page 24: Pin Assignment Ld-G-41 | Front Side

    Please note: In principle, it is possible to use the LD-G-41 in vehicles that are not equipped with a Next18 interface at the factory. In this case, take the electrical properties of the connections into account and ensure that the permissible values are not exceeded.

  • Page 25: Pin Assignment Ld-G-41 | Rear Side

    LD-G-41 3.5. Pin assignment LD-G-41 | Rear side LD-G-41 Rear side Positive pole (+) for backup capacitor or buffer circuit (UPS) Minus pole (-) for backup capacitor or buffer circuit (UPS) 3.6. Connecting a backup capacitor or buffer circuit In sections with bad contact to the rails (e.g.

  • Page 26: Programming

    CV variables (Direct Programming) or the main track programming (PoM). Register programming is not supported by the LD-G-41. You cannot program the decoder with DCC control units that only allow register programming.

  • Page 27: Programming With Motorola Central Units

    LD-G-41 4.2. Programming with Motorola central units In Motorola format the settings are saved in registers. The registers have the same numbers as the configuration variables (CVs) for the DCC format. Please note: If you use a central unit for both DCC and Motorola format it is recommended to program the decoder in the DCC format.

  • Page 28: Configuration Variables And Registers

    "No.". The defaults are those values set in the state of delivery and after a reset. Please note: With variables destined to set several parameters, the input value has to be calculated by adding the numerical values assigned to the desired parameters. 5.1. Overview configuration variables LD-G-41 CV-Nr. Name Anleitung Abschnitt Basic address 5.3.
  • Page 29 LD-G-41 CV-Nr. Name Anleitung Abschnitt Braking behaviour with DC voltage 5.8. Settings for driving operation RailCom channels 5.7. RailCom and DCC-A settings Configuration data 1 5.2. Basic settings 31 and 32 Index for higher CV-Pages 5.5. Function mapping 47...50...

  • Page 30: Basic Settings

    LD-G-41 tams elektronik 5.2. Basic settings Name Input values Remarks and tips (Default) Configuration 0 ... 255 (14) Direction "Standard" data 1 Direction inverted 14 speed levels 28 or 128 speed levels (in DCC format) Note: If you want to use the SDF method, you must set the 28/128 speed level mode.

  • Page 31: Setting The Address

    LD-G-41 Name Input values Remarks and tips (Default) Configuration 0, 1, 4, 5, 8, 9, Use of contacts 4 and 13: … 61 data 2 unamplified outputs AUX3 and AUX4 Train bus / SUSI CLOCK and SUSI DATA 1 1...

  • Page 32: Setting The Motor Control

    LD-G-41 tams elektronik 5.4. Setting the motor control Optimisation of the driving characteristics By adjusting the load control and the motor characteristics curve 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 33 LD-G-41 Proceed as follows to set the load control parameters: If the locomotive is shuttering: Increase the value for CV 115 (KD) in steps of 2. If this does not lead to an improvement of the driving characteristics, set the value of CV 115 back to factory setting (default value).
  • Page 34 LD-G-41 tams elektronik Setting the motor characteristic curve (continuation) Name Input values Remarks and tips (Default) Alternative 0 … 255 = Speed table for alternative speed characteristic curve characteristic. (only for mode 28 A specific motor voltage is assigned to each of speed steps) the 28 speed steps.

  • Page 35: 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 these are used for the LD-G-41 locomotive decoder (3 for forward and 3 for reverse): ...
  • Page 36 LD-G-41 tams elektronik off/on with Outputs Special functions function in use F0, F1, F2, 64 128 Values …, F28, --- (on) (on) (off) 0, 1, 2, Input 0, 1, 2, 3, 4,…, 255 0, 2, 4,…, 14 ... 28, 255...
  • Page 37 LD-G-41 off/on with Outputs Special functions function in use F0, F1, F2, 64 128 Values …, F28, --- (on) (on) (off) 0, 1, 2, Input 0, 1, 2, 3, 4,…, 255 0, 2, 4,…, 14 ... 28, 255...
  • Page 38 LD-G-41 tams elektronik off/on with Outputs Special functions function in use F0, F1, F2, 64 128 Values …, F28, --- (on) (on) (off) 0, 1, 2, Input 0, 1, 2, 3, 4,…, 255 0, 2, 4,…, 14 ... 28, 255...
  • Page 39 LD-G-41 Example: Programming for shunting operation Hint: The connection of the return conductor is not shown. Outputs off/on with function AUX1 AUX2 … F28 --- Values … 28 255 CV-No. Set value CV-No. Set value name F0 f...
  • Page 40 LD-G-41 tams elektronik Example: Programming for rear end signal "off" with coupled carriages Hint: The connection of the return conductor is not shown. Outputs off/on with function AUX1 AUX2 … F28 --- Values … 28 255 CV-No. Set value CV-No.

  • Page 41: Effects Of The Outputs

    LD-G-41 5.6. Effects of the outputs Dimming of the outputs (only F0f, F0r, AUX1 and AUX2) Output Input values Remarks and tips (Default) = Reduction of the voltage applied to the 1...64 (64) output 1...64 (64) 1 = lowest voltage AUX1 1...64 (64)
  • Page 42 LD-G-41 tams elektronik Dimming up and down the outputs Name Input values Remarks and tips (Default) Time for dimming 1...255 (10) = Time until the maximum voltage is up and down reached or the voltage is reduced to "0". 1 = shortest possible time...

  • Page 43: Railcom And Dcc-A Settings

    LD-G-41 5.7. RailCom and DCC-A 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 44: Settings For Driving Operation

    LD-G-41 tams elektronik 5.8. Settings for driving operation Setting the Packet Time Out Name Input values Remarks and tips (Default) Packet Time Out 2 … 255 (16) Time period between the failure of the digital signal and the change to the alternative operation (analogue operation).
  • Page 45 LD-G-41 Braking behaviour with DC voltage Name Input values Remarks and tips (Default) Braking behaviour 0, 16, 32, 48 (48) No braking with d.c. voltage with DC voltage Braking with 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.

  • Page 46: Settings For Analogue Mode

    LD-G-41 tams elektronik 5.9. Settings for analogue mode Name Input values Remarks and tips (Default) Functions 0 … 255 F1 on active in F2 on analogue F3 on mode (F1 to F8) F4 on F5 on F6 on F7 on...

  • Page 47: Auxiliary Functions

    LD-G-41 5.11. 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 values in CV 15 and 16 0 ...

  • Page 48: Checklist For Troubleshooting And Error Correction

    LD-G-41 tams elektronik 6. Checklist for troubleshooting and error correction Warning: ! ! ! If you notice a strong heat development or if the decoder starts to smoke, disconnect the connection to the supply voltage immediately. Fire hazard! Possible causes: ...

  • Page 49: Problems With The Feedback Of The Decoder

    LD-G-41 After the decoder has been installed, the locomotive only runs in one direction. Possible cause:  The output voltage of the booster is not symmetrical. The decoder interprets the unbalanced track voltage as ABC braking distance. à Reduce the ABC sensitivity in CV 122 (by increasing the value in CV 122) or deactivate the ABC braking procedure in CV 121.

  • Page 50: Problems When Switching Functions

    LD-G-41 tams elektronik 6.4. Problems when switching functions An additional device / lighting does not react to switching commands. Possible cause:  The assignment of the functions to the output to which the device / lighting is connected is different than intended. à Check the settings in the Function Mapping.

  • Page 51: Technical Hotline

    LD-G-41 6.6. Technical Hotline If you have any questions about the use of the decoder, our technical hotline will help you (telephone number and e-mail address on the last page). 6.7. Repairs You can send us a decoder for inspection / repair (address on the last page). Please do not send us your return freight collect.

  • Page 52: Technical Data

    LD-G-41 tams elektronik 7. Technical data Digital protocols Data formats Motorola II DCC (according to NMRA and RCN-standard) Formats for the automatic DCC-A according to RCN-218 (can be switched off) registration of vehicle decoders Feedback format RailCom according to RCN-211 (can be switched off)
  • Page 53 LD-G-41 Protection Protection class IP 00 Meaning: No protection against solid foreign bodies. No protection against water. Overload Automatic switch-off when the permissible total current is exceeded or a short circuit at the motor output ("short-circuit shutdown") Environment...

  • Page 54: Warranty, Eu Conformity & Weee

    LD-G-41 tams elektronik 8. Warranty, EU conformity & WEEE 8.1. 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 purchasing the product from us, a dealer or another natural or juristic person reselling or mounting the product on the basis of self-employment.

  • Page 55: Eu Declaration Of Conformity

    LD-G-41 8.2. EU Declaration of Conformity This product fulfils the requirements of the following EU directives and therefore bears the CE marking. 2001/95/EU Product Safety Directive 2015/863/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS) 2014/30/EU on electromagnetic compatibility (EMC Directive).
  • Page 56 Further Information and Tips: http://www.tams-online.de Warranty and Service: tams elektronik GmbH Fuhrberger Str. 4 30625 Hannover / GERMANY Phone: +49 (0)511 / 55 60 60 Fax: +49 (0)511 / 55 61 61 Email: support@tams-online.de...

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