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tams elektronik LD-G-44 Manual

Locomotive decoders
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Locomotive decoders
MM
DCC DCC-A
Front side
LD-G-44
LD-G-44 without
connecting cables
Rear side
Front side
connecting cables
Rear side
tams elektronik
Manual
Item no. 41-04440
LD-G-44 with
Item no. 41-04441
n n n

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Summary of Contents for tams elektronik LD-G-44

  • Page 1 LD-G-44 Locomotive decoders Manual DCC DCC-A LD-G-44 without connecting cables Item no. 41-04440 Front side Rear side Front side LD-G-44 with connecting cables Item no. 41-04441 Rear side 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

    3.3. Avoiding irreparable damage to the decoder!............24 3.4. Pin assignment LD-G-44 | Front side..............25 3.5. Pin assignment LD-G-44 | Rear side..............26 3.6. Use of the LD-G-44 in locomotives with AC motor..........27 3.7. Mounting the decoder..................27 3.8. Connecting LEDs to the function outputs..............29 3.9.
  • Page 4 4. Programming......................34 4.1. Programming with DCC central units..............34 4.2. Programming with Motorola central units.............35 5. Configuration variables and registers................36 5.1. Overview configuration variables LD-G-44............36 5.2. Basic settings.....................38 5.3. Setting the address.....................39 5.4. Setting the motor control..................40 5.5. Function mapping....................43 5.6.

  • Page 5: Getting Started

    N.B. For technical reasons it is possible that the PCB is not completely inserted. This is not a fault.  one electrolytic capacitor, capacity: 220 µF, proof voltage: 35 V Versions LD-G-44 Connecting wires / Interface (item number) 41-04440...
  • Page 6 LD-G-44 tams elektronik Connection to an AC motor If you want to connect a LD-G-44 decoder to an AC motor, you will need:  a load control adapter LRA (item no. 70-02105 or 70-02106) or  a permanent magnet (e.g. no. 70-04100, 70-04200 or 70-04300) or ...

  • Page 7: Intended Use

    LD-G-44 1.3. Intended use The locomotive decoder LD-G-44 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 8: The Locomotive Decoder Ld-G-44

    The prerequisites for using this method are:  the use of a digital control unit that supports SDF  the installation of vehicle decoders that support SDF  setting the speed step mode 28 / 128 on the decoder. 8 | The locomotive decoder LD-G-44...

  • Page 9: Analogue Mode

    LD-G-44 2.2. Analogue mode The locomotive decoder LD-G-44 can also be used in analogue model railway layouts run with an AC or DC speed control. The decoder automatically detects whether an AC or DC speed control is used to power the layout.

  • Page 10: Overload Protection

    2.3. Overload protection The locomotive decoder LD-G-44 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).

  • Page 11: Motor Control

    LD-G-44 2.4. Motor control Pulse width modulation The LD-G-44 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-44 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 12 On delivery, the function F3 is assigned to the special function "SG". In the shunting gear mode, the velocity of all speed levels is reduced to approx. 50 % compared to the set velocity. 12 | The locomotive decoder LD-G-44...
  • Page 13 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-44 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 14: Automated Processes

    / a function key. 2.5.1. ABC braking procedure The LD-G-44 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 15: Braking At Dc Voltage

    2.5.2. Braking at DC voltage The locomotive decoder LD-G-44 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 16: Automatic Uncoupling ("Uncoupling Waltz")

    "STOP/START with a function". When the assigned function is switched on, the locomotive stops with the set braking delay; when it is switched off, it continues with the set acceleration delay. On delivery, no function is assigned to the special function "STOP". 16 | The locomotive decoder LD-G-44...

  • Page 17: Outputs And Interfaces

    Assignment separately for each output. Setting the flashing CV 101...104 frequency together for two outputs. By assigning the flashing function to two outputs and the function "Inverted switching" to one of the two outputs, an alternating flashing is generated. The locomotive decoder LD-G-44 | 17...
  • Page 18 Assignment separately for each output. Setting the voltage together for all outputs to which the function is assigned. Application example: automatic switching on and off of the driver's cab lighting at a certain voltage. 18 | The locomotive decoder LD-G-44...

  • Page 19: Triggering The Actions

    "UPS". SUSI interface The locomotive decoder LD-G-44 has a SUSI interface according to RailCommunity standard RCN-600 in the version "classic SUSI", to which an external SUSI module (e.g. a sound module) can be connected. The SUSI module is read out, programmed and controlled via the decoder.

  • Page 20: Feedback With Railcom

    2.8. Feedback with RailCom RailCom transmitter The locomotive decoder LD-G-44 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 21 Method by which the decoder was registered with the control unit Functions and Specific icons can be assigned to the functions, function icons from which it is clear what they switch (e.g. front lighting, interior lighting, shunting gear). The locomotive decoder LD-G-44 | 21...

  • Page 22: Connections

    LD-G-44 tams elektronik 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 23: Safe And Correct Soldering

    LD-G-44 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 24: Avoiding Irreparable Damage To The Decoder

    LD-G-44 tams elektronik  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 25: Pin Assignment Ld-G-44 | Front Side

    LD-G-44 3.4. Pin assignment LD-G-44 | Front side Front side Colour of Connection wire (for use of settings in state of delivery) yellow F0r = Lighting backward motion (function F0) white Licht Vorwärtsfahrt ( function F0) AUX1 green...

  • Page 26: Pin Assignment Ld-G-44 | Rear Side

    LD-G-44 tams elektronik 3.5. Pin assignment LD-G-44 | Rear side Rear side Colour of Connection wire (for use of settings in state of delivery) Right track Right current collector (or slider) Left track black Left current collector (or vehicle ground)

  • Page 27: Use Of The Ld-G-44 In Locomotives With Ac Motor

    LD-G-44 3.6. Use of the LD-G-44 in locomotives with AC motor The LD-G-44 has been designed to control direct current (DC) motors, for that reason it cannot be connected directly to alternating current (AC) motors. You can control AC motors with the LD-G-44 and benefit of the load control when ...
  • Page 28 LD-G-44 tams elektronik Connecting accessories to the outputs Caution: The maximum current of the accessory must not exceed the maximum current of the output to which you connect it. The output may otherwise be irreparably damaged! Disconnect any existing diodes in the leads to the lamps, otherwise the lamps might not light.

  • Page 29: Connecting Leds To The Function Outputs

    LD-G-44 3.8. 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 30 LD-G-44 tams elektronik Parallel connection of LEDs Alternatively, you can connect several LEDs in parallel, each via a series resistor of its own. The current consumption is max. 20 mA for all LEDs, depending on the series resistor´s value. The maximum number of LEDs to be connected in parallel results from...

  • Page 31: Connecting Inductive Loads

    LD-G-44 3.9. 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 prevent damage at the output. Check to connect the anode of the diode to the function output.
  • Page 32 LD-G-44 tams elektronik Connection of reed contacts to the switching inputs Connection of Hall sensors Pay attention to the correct polarity when connecting Hall sensors. Connection of Hall sensors to the switching inputs Assignment of the connections: Hall sensor Decoder...

  • Page 33: Connecting A Backup Capacitor Or Buffer Circuit

    LD-G-44 3.11. Connecting a backup capacitor or 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 34: Connection Of A Susi Module

    SUSI: mainly used for larger nominal sizes with higher current requirements The locomotive decoder LD-G-44 has a classic SUSI interface to which e.g. a sound module can be connected. The plug system used for this interface is designed to be protected against polarity reversal.

  • Page 35: Programming With Motorola Central Units

    LD-G-44 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 36: Configuration Variables And Registers

    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-44 Name Section of the manual Basic address 5.3.
  • Page 37 LD-G-44 Name Section of the manual Functions active in consist operation 5.9. Settings for driving operation (F1 to F8) Functions active in consist operation 5.9. Settings for driving operation (F0, F9 to F12) Braking behaviour with DC voltage 5.9.

  • Page 38: Basic Settings

    LD-G-44 tams elektronik Name Section of the manual Parameter of load control KD 5.4. Setting the motor control Load control 5.4. Setting the motor control Configuration data 2 5.2. Basic settings 123...127 Reserved for registration via DCC-A Values must not be changed!

  • Page 39: Setting The Address

    LD-G-44 Name Input values Remarks and tips (Default) Configuration 0, 4, 8, 12, 16 Reaction to ABC braking method: … 60 data 2 ABC braking method active ABC braking method inactive Inverted ABC detection Constant braking distance inactive...

  • Page 40: Setting The Motor Control

    LD-G-44 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 41 LD-G-44 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 42 LD-G-44 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 43: 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-44 locomotive decoder (3 for forward and 3 for reverse): ...
  • Page 44 LD-G-44 tams elektronik off/on with Outputs Special functions function in use F0, F1, F2, 64 128 Values …, F28, --- (on) (on) (on) (off) 0, 1, 2, Input 0, 1, 2, 3, 4,…, 255 0, 1, 2, 3, 4,…, 15 ...
  • Page 45 LD-G-44 off/on with Outputs Special functions function in use F0, F1, F2, 64 128 Values …, F28, --- (on) (on) (on) (off) 0, 1, 2, Input 0, 1, 2, 3, 4,…, 255 0, 1, 2, 3, 4,…, 15 ...
  • Page 46 LD-G-44 tams elektronik off/on with Outputs Special functions function in use F0, F1, F2, 64 128 Values …, F28, --- (on) (on) (on) (off) 0, 1, 2, Input 0, 1, 2, 3, 4,…, 255 0, 1, 2, 3, 4,…, 15 ...
  • Page 47 LD-G-44 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 48 LD-G-44 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 49: Effects Of The Outputs

    LD-G-44 5.6. Effects of the outputs Dimming of the outputs 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) 255 = maximum voltage AUX2 1...64 (64)
  • Page 50 LD-G-44 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 51 LD-G-44 Kick time and automatic uncoupling ("uncoupling waltz") Name Input values Remarks and tips (Default) 0 ... 255 Kicking time 0 = shortest kick time ("moment- (32) 255 = longest kick time function") (= 25.5 seconds) Setting common for Increasing the input value by "1"...

  • Page 52: Settings For The Switching Inputs

    LD-G-44 tams elektronik 5.7. Settings for the switching inputs Name Input values Remarks and tips (Default) Assignment of the functions to the switching inputs F0 … F7 Switching input 1 1 … 255 (0) Switching input 2 1 … 255 (0)

  • Page 53: Railcom And Dcc-A Settings

    LD-G-44 5.8. 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 54: Settings For Driving Operation

    LD-G-44 tams elektronik 5.9. 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 55 LD-G-44 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 56: Settings For Analogue Mode

    LD-G-44 tams elektronik 5.10. 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 57: Sensivity Of The Overload Protection

    LD-G-44 5.11. Sensivity of the overload protection Name Input values Remarks and tips (Default) 0 … 255 (50) Overload = Level of overload at which the overload sensitivity is detected and the overload protection responds. ("Short-circuit sensitivity") 50 = 3,000 mA...

  • Page 58: Auxiliary Functions

    LD-G-44 tams elektronik 5.12. 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 59: Checklist For Troubleshooting And Error Correction

    LD-G-44 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 60: Problems With The Feedback Of The Decoder

    LD-G-44 tams elektronik 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 61: Problems When Switching Functions

    LD-G-44 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 62: Technical Hotline

    LD-G-44 tams elektronik 6.7. 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). 6.8. 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 63: Technical Data

    (depending on decoder type and Item no. 41-04441: none / connection cables version) SUSI interface Version classic SUSI according to RCN-600 (all LD-G-44 versions) Number of switching inputs Number of switching outputs Connection for backup capacitor or buffer circuit Connection for control line of...
  • Page 64 LD-G-44 tams elektronik 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 65: Warranty, Eu Conformity & Weee

    LD-G-44 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 66: Eu Declaration Of Conformity

    LD-G-44 tams elektronik 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 67 LD-G-44...
  • Page 68 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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