DIGITAL CONTROL

Be a part of the future – NOW!

If you’re considering digital control for your layout, contact us straight away, and we will send you off the latest explanatory leaflet – FREE!

This illustrated guide will take you, step by step, through the Fleischmann digital control system with its unique TWIN-TECHNIK system.

Control commands are sent to all components of the layout via the track. Each component receives its operating instructions through a digital decoder – press the relevant key on the TWIN-CENTER keyboard and off you go!

The TWIN-CENTER controller “speaks” and “understands” the NMRA/DCC standard “languages” as well as our own Fleischmann original digital language “FMZ”. Locos can be programmed with their own, inertia levels, control line characteristics, light on/off, plus much more –

particularly with the NEW “Sound on Board” locos!  

- STARTING OFF YOUR JOURNEY RIGHT! -

THE WORLD OF TWIN-TECHNIK

More and more railway modellers are installing digital control on their layouts. The operational possibilities are so fascinating, that (almost) every desire can be fulfilled. From the very beginning, digital operation is easy to start off with. Enjoyment from the first moment onwards.

The TWIN-TECHNIK from FLEISCHMANN, opens up a whole host of possibilities; because the TWIN covers two digital languages: firstly, the international standard DCC, and secondly FMZ - the well-known FLEISCHMANN multi-train control system.

If you want to run trains on your layout just like the real railways, then - TWIN-TECHNIK makes it possible!

How does the digital multi-train control system from FLEISCHMANN actually work?

Of course, you already know the simplest form of model railway: an oval of track, connected up to a transformer, around which a loco runs.

The transformer changes the mains current into a controllable D.C. power between 0 and 14 volts, which is fed into the tracks. The wheels then transfer this power to the motor so that the loco will run. The further the control knob is rotated, then the higher the power, meaning that the faster the loco will run.

If you put a second loco onto the track, then - in just the same way as the first loco - it receives the same power from the transformer - which means that both locos will run in the same direction, fast or slow, according to the setting of the controller. This type of control is called analogue or conventional control.

It's completely different for the digital multi-train control from FLEISCHMANN:
Here, each loco fitted with a decoder will run individually, according to your commands, fast or slow, backwards or forwards - completely independently from all other locos which are on the same track.

How does this work? With this type of control, there is a constant power in the track. This serves to provide the power for the locos, and additionally it carries the multitude of digital control commands to the loco.

The decoder inside the locomotives translates the control commands, regulating how much power is fed to the motor, thus setting the speed and direction.

Acting on the given digital control commands, the decoder can even turn the headlights of the loco on or off.

Each digital loco with its inbuilt decoder, or similarly, each receiver unit for electrically operated accessories, has its own address and therefore reacts specifically to those commands sent to its own address - exactly like the telephone which only reacts when its own number is dialled.

Because the commands for several loco addresses can be transmitted unbelievably quickly one after the other, lots of digital locomotives can be controlled simultaneously. So, on just one power circuit, you can be shunting whilst other trains are running in and out of stations, you can couple up two locos for double-heading, and coaches can be added onto waiting trains, plus many more prototypical operations as well.

The TWIN-DECODER -
the central control for digital locos

The TWIN-DECODER is the brain inside digital FLEISCHMANN locos. It ensures that the control commands from the appropriate controller are correctly translated into corresponding instructions for the motor. Besides which, with an inbuilt TWIN-DECODER, the speed of the loco is independent of the load placed upon it. This means that whether it is running up or down hill, it will always run at the same speed (provided that there is sufficient power).

The TWIN-DECODER is multi-lingual: it understands both FMZ and DCC (Digital Command Control) according to the NMRA standard. Locomotives with TWIN-DECODERS can be run from controllers conforming to this same standard. Exactly which functions of the TWIN-DECODER can be carried out within each environment is basically determined by the capabilities of the controller.

The TWIN-DECODER has by far the greatest variety of operational possibilities in conjunction with the TWIN-CENTER 6802. Using this central controller, then the optimum performance of the decoder in conjunction with the desired characteristics of your loco can be achieved.

The TWIN-DECODER can be installed in virtually any locomotive, provided of course, that there is sufficient space inside to accommodate the appropriate decoder, and that the loco is fitted with a standard NEM plug-in socket.

The TWIN-TECHNIK - a clearly designed concept with all the necessary components

With the TWIN-TECHNIK, FLEISCHMANN has created a range of components, which precisely combine with each other to give the best performance to suit your requirements.

The switching of points, signals or uncoupler tracks is carried out, just as with locos, by a common central switching controller - the TWIN-CENTER (6802) from FLEISCHMANN.

Using this central controller, in conjunction with its accompanying transformer, straight away you can run two digital locos simultaneously, yet completely independently from each other. The TWIN-CENTER incorporates two controllers to run locomotives, a keyboard to operate electrical accessories and routes of points, a booster for power supply, a coder for setting addresses as well as an interface for connection to a computer.

By connecting in TWIN-hand controllers (6821) or a TWIN-CONTROL (6822) additional locos can be take under direct control.

An easy way to start -
Entry to the TWIN-TECHNIK with a Start Set from FLEISCHMANN

Our start sets will give you the right start in the world of digital model railways. The sets contain everything that you need for an expert beginning: one loco with TWIN-DECODER, one TWIN-CENTER 6802 as a digital central controller, one DIGITAL-CONTROL transformer 6811, the necessary connection materials as well as attractive rolling stock, plus ready-ballasted trackwork (inc.points) and other accessories.

And it really is very simple to make a "clean" start, for example with our attractive Regional Express (our example shows item no. 6 9369 in gauge N) with its uniquely shaped double-deck coaches:

Once the childishly simple start with the digital start set has been carried out, further more comprehensive instructions (for locos, transformer and TWIN-CENTER) are included in the set.

Once you've enjoyed your first taste of the digital model railway world, you're bound to want to get another train running without any further ado. You'll soon find out that we've prepared the way for you!

The world of the "TWIN-TECHNIK" is set to amaze you!

Installing a TWIN-DECODER:

Once you've started, then the extension of the operations is just as easy. It's not complicated to install a TWIN-DECODER in a FLEISCHMANN locomotive with socket connector (here HO diesel loco 4236):

1. Remove the loco body and likewise the power bogie.
2. Take out the bridge from the connector socket.
3. Insert the plug of the decoder into the connector socket.
4. Locate the decoder and fasten in position. Replace the loco body.

And now the digital fun can begin.

You will be able to recognise the locos with the practical connector socket by these symbols:

for the 6-pole connector socket according to standard NEM 651.
For these locos, use the TWIN-DECODER 6839, 6846, 6847 or 6849.

....... for the 8-pole connector socket according to standard NEM 652.
For these locos, use the TWIN-DECODER 6848.

Additional Info: If your desired loco does not have a connector socket, then you can still convert it to digital operation by using the TWIN-DECODER 69 6846 (without plug). Just ask at your local dealer!
Naturally, you can enjoy the advantages of the TWIN-DECODER without any such conversion work, by simply buying a FLEISCHMANN loco with ready-fitted decoder.

Engine Driver and Signalman in unison:
All made possible by the FLEISCHMANN multi-train control!

With digital multi-train control, it's not just the control commands for locomotives that are transmitted. With the aid of the TWIN-TECHNIK, not only running, but also the operating of electrical accessories, like points for example, can be carried out.

Because all the digital control commands are carried through the rails, the TWIN-receiver module for operating electrical accessories 6852, can be located in any convenient position around the layout and connected into the trackwork. The points are then no longer connected by a spaghetti of wires under the baseboard back to a central control panel, but with just short lengths of wire to the nearest receiver module.

But with the TWIN-CENTER 6802, it's not just single points that you can switch, but whole routes of points. Up to ten switching operations can be accomplished with just command. But the crowning glory is that you can link up "chains" of point routes as well, with one route "calling up" another.

Even the switching of signals and uncoupler tracks is yet another possible feature using the TWIN-TECHNIK. To control electrical accessories you only need the TWIN-receiver module 6852 besides the TWIN-CENTER.

You can couple up 4 points or 4 signals or 8 uncoupler tracks to one TWIN-receiver module and switch them using the TWIN-CENTER 6802 or likewise the TWIN-CONTROL 6822.

Advantages offered by the TWIN-TECHNIK:
Alongside the TWIN- or likewise FMZ-Technik fitted digital vehicles, analogue vehicles can also be run on the same track at the same time, and yet, still be independently controlled. To do this, one simply needs a coupler, to transmit the control instructions through the track, a breaker to protect the layout from an accidental short circuit and a transformer/controller for D.C. locos.

Building up the TWIN-TECHNIK:
If lots of digital vehicles are to be in use - as in our example, locos with FMZ- and TWIN-decoders - it would be nice to have them all under control at once. One TWIN-CONTROL 6822 with its two control knobs and keyboard is ideally sufficient. However, the system can be built upon: Hand controllers 6820 or 6821 can be integrated within the system - up to 4 hand controllers can be connected via a TWIN-BOX 6827. Continuing on from there, up to 4 TWIN-BOXES, each with 4 hand controllers, or even 16 TWIN-BOXES, each with just one hand controller, can be connected up, and if that were not enough you can also couple up 6 TWIN-CONTROLs with the TWIN-CENTER which will give you complete control of up to 30 locos at any one time.

1 TWIN-TECHNIK

1.1 TWIN-CENTER

Question:
In the start-mode "auto.+speed "all locos after switching on drive again like before the break, the regulator-assignment is missing in the display however.
Explanation:
This is right. The TWIN-CENTER remembers only the driving state of a loco, but not however from which controller the last condition was put in, because this is possible from many controllers, for example TWIN-CONTROL and TWIN-BOX with hand-controls. The assignment of locos to hand-controls can be interrogated however.
·
Question:
How to cancel a false "double heading" with identical basis-loco and consist-loco?
Answer:
If during creating a double heading the same address is selected as basis-loco and as consist-loco (this is in principle not real but it is possible however), the double heading can not be deleted, because this loco-address always appears as consist-loco and not as basis-loco when selected. Remedy: in the basic settings set the start-mode of the locos to "no old status" and turn off the TWIN-CENTER shortly. That double heading is now deleted, but also the information of any other loco is deleted now.
·
Question:
How is the direction of a single loco altered if it is in a double heading?
Answer:
If two locos came from different directions to build a double heading, the locos will drive in different directions even if the double heading is ready. Creating a double heading makes only sense, if the locos run together in the same direction as set previously. Nevertheless, the direction of the incorrectly driving consist-loco can be reversed: in the Basic Settings >User Interface >speed knobs select AC-style-knob, select the incorrectly driving loco at your controller and alter the direction by pressure on the control knob. Then, if necessary, change the control knob back to DC-style-knob, which you can do in the Basic Settings again. Now when the basis-loco of that double heading is selected, all locos drive in same direction.
·
Question:
After approximately 20 min the TWIN-CENTER turns off with a hot heat sink.
Explanation:
There is probably a capacitor against radio disturbance under the track. This creates a bigger current consumption resulting in overheating. The appliance turns itself off in order to protect itself against damage. Whether a capacitor is in the track can be checked by connecting a small lamp in one of the two wires to the track. If this lamp comes on, although no vehicle stands on the track, a condenser is under the track somewhere.
·
Question:
How to set the TWIN-CENTER to send only FMZ-signals?
Answer:
To generate FMZ-signals exclusively, proceeded as follows: in the TWIN-CENTER >Basic Settings set the following attitudes: >Special Options SO#25=8, SO#907=128, >Loco data format = FMZ, >Reset Loco data format.
Attention:
if the format of a loco-address was switched from FMZ to DCC and then back to FMZ, the DCC-Idle-Signal still remains active, (SO#25=9 automatically). Set back to SO#25=8 or =0 again.
·
Question:
How to set the TWIN-CENTER to send only DCC-signals?
Answer:
To generate DCC-Signals exclusively, proceeded as follows: in the TWIN-CENTER >Basic Settings set the following attitudes: > Special Options SO#25=1, SO#907=4, > Loco data format =DCC (14 or others), >Reset Loco data format. A Reset of the Configuration takes back above alterations again!
Attention:
if the format of a loco-address was switched from DCC to FMZ and then back to DCC, the FMZ-Idle-Signal still remains active, (SO#25=9 automatically). Set back to SO#25=1 or =0 again.
·
Question:
To read an FMZ-address, the TWIN-CENTER needs much longer than a FMZ-Coder 6809. Can this be changed?
Answer:
The reading-time is essentially influenced by the special-options SO#144 and 145. Both can be reduced in certain steps, for example SO#144=5 and SO#145=25. For Fleischmann-locos with Fleischmann-motors, these values increase the speed when reading. For foreign motors these values could deliver wrong addresses, that are about 1 bigger than the real address. In this case, the values are to be increased a little bit again, especially the value of SO#145.
·
Question:
When changing the switching times of points some values are apparently not taken on
Explanation:
The minimum and maximum time for switching points are both set to 50ms in the default settings of the TWIN-CENTER. With the alteration of these values is to keep an eye out that first the higher value (therefore: max) is altered, then the smaller (therefore: min). Still, the button [¿] is to be operated after each input of a changed value, so that the value is taken on. If both values are altered, the button [¿] must be pressed twice (once after each new value).
·
Question:
When crossing the insulation-position between the regions of a TWIN-CENTER and TWIN-BOOSTER or between two TWIN-BOOSTERs the TWIN-CENTER tuns off with an error message "short".
Answer:
If you connect the transformer-clamps No. 5 at the 6-pole plug of the TWIN-CENTER with the same clamp of the boosters, this effect no longer appears.
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Question:
The TWIN-CENTER does not accept point-addresses higher than 119.
Explanation:
When assigning point-addresses to accessory-decoder-addresses the TWIN-CENTER automatically assumes that the accessory-decoder to be an FMZ-Type (FMZ-accessory-decoder). This is to be seen in the display by the F for FMZ-format. And in the FMZ-System, there are simply no addresses higher than 119.
If decoder-addresses from 120 to 500 should nevertheless be used, so there are two possibilities to do this:
1. First, the point-address is assigned to an unused FMZ-decoder-address up to 119, then in the right column the protocol-selection is changed from F (FMZ) to D (DCC). This must be confirmed with the button [¿]. If now you go back to the decoder-address by button [], this one can be set to values higher than 119. To confirm this selection go to the column for the protocol and press [¿] again.

2. In the special-option SO#12 you find the value 9 as default for FMZ-accessory-decoders. By changing the value to 4 the selection of accessory-decoders is defaulted to DCC. Now always D (for DCC) is proposed with the assignment of point-addresses to accessory-decoder-addresses. (A RESET of Configuration sets the default back to FMZ)
·
Question:
For N layouts, must the scale always be selected as Voltage: N ? (12)
Answer:
No, the default voltage H0 should be kept if possible. Especially the accessory-decoders 6850/52 need the H0-voltage for best function. But if a separate Booster with H0-voltage feeds the accessory-decoders there is nothing to say against N-voltage for the rest of the layout. But locos with load dependant decoders will run a little bit slower or will have less power.

1.2 Driving, TWIN-DECODER

Question:
Will a loco be stopped in a halt-section like with Märklin?
Answer:
DCC-locos can be braked automatically by the TWIN-BOOSTER 6807 in the DCC-Brake-Generator-Mode in separated braking tracks, which are switched to be active by a relay. This is not possible with the TWIN-CENTER alone. For braking of FMZ-locos a braking central unit is necessary instead of a TWIN-BOOSTER.
·
Question:
On a compatible layout, the transformer and TWIN-CENTER connected to it by Coupler 6806 , the lamps of analogous locos shine very brightly, the locos don't stand still with transformer at zero.
Explanation:
In the TWIN-CENTER a loco is, or was, selected as a DCC-loco. This causes the SO#25 to be adjusted automatically, from default 0 to 9. This, on the other hand, means that always a DCC- and a FMZ-Idle-Signal are generated, even if no DCC-loco is selected. The DCC-Signal in the data-stream is rectified negligibly at the transformer output, and comes as additional DC-power to the track. The special-option is to be adjusted to SO#25=8, now no more DCC-Idle-packets are generated, only FMZ-Idle.
·
Question:
A loco with TWIN-DECODER drives into the wrong direction in DCC-Mode.
Explanation:
With the first series of the TWIN-DECODER the driving direction in DCC-mode is not right. This can become corrected, in that CV#29 Bit0=1 is programmed in the TWIN-DECODER.
·
Question:
Which values can the CVs of the TWIN-DECODERs have?
Answer: The TWIN-DECODER can have the CV values from 0 to 255 in principle. With other decoder-manufacturers, the corresponding instruction manuals are to be heeded.

1.3 Programming and reading

·
Question:
Are the recipes in the handbook 6890 chapters 10.4.2 and 10.4.3 for programming in FMZ-format right?
Answer:
The recipes "and here is how to do it "comprises in the first edition (marks on the rear: 012345.0 E) a misprint. It must be corrected to read:
.........
Press the [menu] key
Using the [¯] key search through until the entry "FMZ" is found
Further with the [®] - key
.........
·
Question:
CV#2 and CV#5 for minimum and maximum power cannot be programmed, or can be programmed without error but nothing has changed (13)
Explanation:
In the manual of the TWIN-DECODER is a table with usable CVs. Those here mentioned CVs are not in this table and though are not supported. The TWIN-DECODER uses for driving only the speed table mode (CV#67 to CV#94). Depending of the decoder type not used CVs cannot be programmed (this gives an error) or can be programmed yet (no error message) but aren't used at all. Beside those CVs in the table there are further optional CVs mentioned in the DCC Recommended Practices, however these are not used in the TWIN-DECODER. The only usable CVs are mentioned in the manual.
·
Question:
Occasionally the TWIN-CENTER has problems to reading CVs of decoders, although driving works perfectly. (14)
Explanation:
According to tolerances of the appliances and decoders it can come to this appearance, what is because of that the decoder requires some more time for its answer to the TWIN-CENTER when reading information. Remedy: in the TWIN-CENTER increase the values of two special options SO#324 and SO#364 by 1 or 2. The allowable time for the answer of the decoder (verify) is hereby extended.
·
Question:
The TWIN-CENTER reports an error after programming CVs of the TWIN-DECODERs, although the programming was correctly enforced. (14)
Explanation:
Special-option SO#344 of the TWIN-CENTER contains a value for the time when the positive feedback of the decoder is expected after a programming-process of a decoder. If the decoder needs somewhat longer for the feedback, this yields an error-message, although the programming was executed correctly. One can extend the read-time a little bit, in that the value of SO#344 is increased by 1 or 2. A too strong enlargement would lead to an error-message again.

1.4 Using a PC (Personal Computer)

·
Question:
What software is needed to operate a layout by a PC and TWIN-CENTER
There are a lot of different programs / software for PC on the market, for the different needs of a user or layout. A program / software for the TWIN-CENTER must use one of the two Computer Languages: TWIN-CENTER- / FMZ-Syntax or IB-Syntax (Computer Language of the intellibox from Uhlenbrock). A description of the different programs can be found in Eisenbahn-Kurier No. 1/2002
·
Question:
Is a computer-program, that is written for intellibox, usable also for TWIN-CENTER?
Answer:
In principle yes, in the Basic Settings under >Interface >Syntax the IB-Syntax has to be selected.
·
Question:
Is the interface at 6802 compatible to the FMZ-Central controller 6800? Can FMZ-Central Units easily be replaced?
Answer:
The contacts of the interfaces of 6800 and 6802 are used differently! The TWIN-CENTER doesn't work with interface-cable 6882. For the TWIN-CENTER a 1to1-cabel (9-pole socket to 9-pole plug) is necessary. With TC-Syntax, the TWIN-CENTER has the same commands as 6800, except loco to hand-regulator assignments and except command series.
·
Question:
Can the FMZ-Reset-Command P999P be executed by the interface?
Answer:
No. This didn't already work at the Central Unit 6800 and doesn't work with the TWIN-CENTER too. This really does not make sense, because there are three different methods of the RESET in the Basic Settings: configuration, locos, points.

2 DCC

2.1 Driving

Question:
How to select a DCC-address greater than 119?
Answer:
As FMZ only knows addresses up to 119, an error message occurs when selecting a higher address: address not valid / change Type/Addr. As remedy, there are two ways:
1. In the Basic Settings >Loco data format select DCC 14 etc. as default, now every new selected loco is assigned to be a DCC-loco automatically, where higher addresses are allowed.
2. After pressing [loco #] and input of the address don't finish the input by the [¿] key, but by pressing [menu] go directly to the format-change on DCC for this specific loco.

2.2 Light-function

Question:
The light cannot be switched on with a standing loco
Explanation:
This behaviour is not a mistake but the typical FMZ- behaviour, that was retained also in DCC-mode. Pressing the [function] button represents a type of primary election consequently; the light actually comes on, when the loco starts to move. Then, it however stays on, if again the loco comes to halt.
By this behaviour, one avoids the scenario that perhaps the light will first come on in the wrong direction and then change into the right direction when starting to move.
·
Question:
That "light " doesn't work in the halt but only with trip.
Answer:
This effect appears, if the TWIN-DECODER is driven in the DCC-Format in a pure DCC-application. In this case, there are two possibilities of remedy:
1). Insulation of the lamps, for this, another wire is to be installed on the 6-pole decoder, but mostly only by authorised dealers.
2). The condenser hanging at the green wires is to be bridged (can slip then).
With the decoder 6848 with 8-pole plug and isolated light this effect doesn't appear.
·
Question:
With each changing speed step, the light of the loco comes on and off.
Explanation:
If the decoder, be it a TWIN-DECODER or another DCC-Decoder, is internally set to have 14 speed steps, it however on the basis of a setting in the TWIN-CENTER or another DCC-Control is controlled with 28 or 128 speed steps, the light at the vehicle is turned on or off with every second speed step of the TWIN-CENTER. Remedy: in the TWIN-DECODER set CV#29 Bit1=1, now the decoder is internally prepared to run with 28 as well as 128 speed steps.
·
Question:
The light of the vehicle becomes darker in the halt
Explanation:
The module hanging at the green wires of the TWIN-DECODER (a condenser) serves to protect the decoder from DC-power when driving compatible digital locos with analogue locos. If it is removed / bridged by soldering the ends of the green wires together, it is no longer possible with this loco drive compatible with analogous locos as it is normal in the Fleischmann system, but on the other hand the lamps get more power and will not become darker in a halt. Also see chapter 1.2.

3 Trix

3.1 Driving

Question:
Can locos with a selectrix-Decoder be controlled with the TWIN-CENTER?
Answer:
Selectrix-Loks can be controlled, in that the address-format is switched in the TWIN-CENTER from FMZ to T.
Note: Selectrix-locos are generally prepared to run as DC-locos by default. Before the loco can be controlled or programmed with the TWIN-CENTER, the loco has to be switched from DC to digital mode. At present this is possible only with Selectrix-devices.
·
Question:
A TRIX-loco with TWIN-DECODER 6848 runs perfectly, but the light doesn't come on?
Explanation:
Probably the 8-pole plug is connected in a wrong 180° position. With our decoder, the wires of the plug come off in other direction as with the Lenz-decoder for example.
·
Question:
Can locos with TWIN-DECODER be controlled on a layout with Selectrix-Control?
Answer:
Officially: no, the TWIN-DECODER understands FMZ and DCC. Also with Trix Central Control 2000, which can be driven mixed with DCC or purely with DCC, locos with TWIN-DECODER don't move. The cause is not yet known. With the TWIN-CENTER and the intellibox, with which a DCC- and a selectrix-signal can be sent alternating, the function of the loco is perfect with TWIN-DECODER in the DCC-mode however.

3.2 Programming

Question:
Can accessories (points etc.) be controlled with selectrix-accessory-decoders and the TWIN-CENTER?
Answer:
Selectrix-accessory-decoders cannot be served. The SX-Bus which is necessary is not existing with the TWIN-CENTER.

4 Roco

Question:
Roco-Crane: none or absurd function with the TWIN-CENTER, if an FMZ-loco is controlled simultaneously.
Explanation:
the amount of FMZ-signals is too high. It is reduced, in that the TWIN-CENTER SO#459=2 is set. Simultaneously one must increase SO#904 from 28 to 40, this increases the number of the DCC-Preamble-Bits.
·
Question:
The accessory-decoders initially after being switched on (with the first service) respond only delayed, after that normal.
Explanation:
The problem apparently exists in that the accessory-decoder badly synchronises on DCC through a great amount of FMZ-signals (default). Remedy: reduce the percentage of FMZ-signals (set SO#459 from 4 to 1) and simultaneously in the Basic Settings for points extend the minimal on-time from 50ms to 100ms. The maximum-time has to be extended with it.
·
Question:
A DCC-loco with Roco-decoder 10742 starts to move, as soon as the TWIN-CENTER is switched on.
Explanation:
The track is actually fed only with FMZ-signals and in the decoder by CV#29 bit2=1 Power Conversion Mode to DC-Power is switched on at the same time. Remedy: generate DCC-Idle-signals by setting SO#25=9 in the TWIN-CENTER and if necessary decrease the amount of FMZ-signals by SO#459=2 (or even =1). Additionally, Power Conversion should be turned off, in that CV#29 Bit2=0 is set in the loco.
·
Question:
Can the Lokmaus2 from Roco be connected to the TWIN-CENTER?
Answer:
This is not directly possible.
·
Question:
The accessory-decoder 10771 switches only once with motor-drives (here: Pilz), despite the switching-time is set to 1,5s.
Explanation:
The decoder only delivers 0,74A per output for approximately 1s, after that it shuts down because of thermal overload. Apparently the current for the point-motors is too high.
·
Question:
With the Lokmaus2, different things can be programmed in the standard programming mode. Does this also work with TWIN-DECODERs?
Answer:
With Lokmaus2 it is, in principle, possible to program the following things: Address, minimum power, acceleration rate, deceleration rate, maximum power. How to do this is described in a short leaflet on page 8. But these functions can be programmed only with those kinds of decoders that support these functions. How to be seen in the leaflet of the TWIN-DECODER (see CV-table), address as well as acceleration rate and deceleration rate can be programmed. But for the speed the TWIN-DECODER doesn't use the interpolation between a minimum power and a maximum power. Corresponding to DCC-rules it produces the speed in a second way: there exists internally in the TWIN-DECODER a speed table with 28 speed steps, with every speed step being able to be modified individually. This is not possible with the Lokmaus2.
·
Question:
How can the Roco Point-motor 42624 be used with a TWIN-CENTER?
Answer:
The utilisation is principally the same as with the Roco keyboard for points 10770. After fitting it into a point a virtual address (address of the point) has to be declared in the TWIN-CENTER (in the >Basis Settings >Access.Setting >virtual Addrs input of digital address of the decoder, output number 1 to 4 and change the digital format to D). Now switch the layout off by pressing the stop-key, connect the green wire of the motor to the track. With the go-key switch the layout on again, in the keyboard mode of the TWIN-CENTER press the green key of the just before programmed virtual point address. After that take the green wire away from the track, the motor can now be switched with the green or red key of the programmed point address.

5 Arnold

Question:
Can Arnold-locos be controlled with the TWIN-CENTER?
Answer:
If the Arnold-decoders are compatible to DCC: yes. This involves however only driving. Regarding the programming, there are still no experiences.
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Question:
A loco with Arnold-decoder doesn't react to the TWIN-CENTER but runs uncontrollably.
Explanation:
The track is actually fed only with FMZ-signals and in the decoder by CV#29 Bit2=1 Power Conversion Mode to DC-power is switched on at the same time. Remedy: generate DCC-Idle-signals by setting SO#25=9 in the TWIN-CENTER and if necessary decrease the amount of FMZ-signals by SO#459=2 (or even =1). Additionally, Power Conversion should be turned off, in that CV#29 Bit2=0 is set in the loco.
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Question:
A loco with Arnold-decoder doesn't always reacts after the TWIN-CENTER has been switched on but only after several stop/go.
Explanation:
Perhaps Motorola-recognition is switched on in the decoder, this leads to irritation. The Motorola-recognition is turned off by of CV#49 Bit4=1
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Question:
Reading of addresses of elder Arnold-decoders is wrong (13)
Explanation:
Older types of Arnold-decoders have some different address management internally than modern types. For reading the real address of these decoders set the special option to SO#825=1.

6 Lenz

Question:
Can the TWIN-DECODER be controlled with Lenz?
Answer:
In principle the TWIN-DECODER can be controlled with DCC-systems compatible to the NMRA-standards, no matter whether N or H0. Merely when programming the decoders, intolerances can appear. Here, improvements can be achieved, if the prefabricated part attaching at the green wires (condenser) is removed / bridged.
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Question:
A loco with Lenz-decoder runs jerkily in the presence of FMZ.
Explanation:
With this loco Power Conversion Mode to DC-power is switched on. Turn off in the decoder by CV#29 Bit2=0. If this CV cannot be changed, the decoder cannot be driven on a multi-language layout, not even with intellibox or selectrix.
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Question:
How to connect the funktions-decoder LF100, for example at a driving trailer?
Answer:
The decoder is connected directly to the current pickups and has connections for up to 4 consumers. These can be driven isolated from the chassis or even not. (see Lenz-manuals).
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Question:
The accessory-decoder LS 100 loses addresses above 63 at the TWIN-CENTER, but not at the intellibox.
Explanation:
The Lenz-system can address 256 accessories that are connected to the decoders with the digital decoder-addresses 1 to 63. Customers, who know the TWIN-CENTER and the intellibox, frequently become confused with a point-address (virtually) and the decoder-address. The intellibox automatically makes an assignment of the point-address to a decoder-address and its output. The points 1 to 4, for example, are at the outputs 1 to 4 of the accessory-decoder with the decoder-address 1, the points 5 to 8 at the outputs 1 to 4 of the accessory-decoder with the decoder-address 2, the points 9 to 12 at the outputs 1 to 4 of the accessory-decoder with the decoder-address 3 etc.
With the TWIN-CENTER this assignment has to be done in the Basic Settings >Access.Setting, where a (virtual) point-address can be assigned as you like to any accessory-decoder and output.
Example: If with the intellibox a key to the point No. 53 is pressed, the intellibox sends the command: switch the output No. 1 at the accessory-decoder No. 14. And exactly such an assignment is necessary in the TWIN-CENTER: in the Basic Settings >Access.Setting, >Virtual Addrs a virtual address (for example point No. 53, but also any other number from 1 to 2000) is assigned to the decoder-address 14 and the output 1. Still, one puts in the letters D for DCC or F for FMZ, for the type of decoder.
If with the TWIN-CENTER a decoder-address higher than 63 is assigned, the LS100 can be programmed also on this address. However, it only works as long as the power supply is not interrupted. If this happens, the decoder loses the address. Therefore keep an eye that no decoder-addresses higher than 63 are assigned.
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Question:
How to put in the address of a switch-decoder LS 100 and the values in memory?
Answer:
The LS 100/110 has some memory to put in the address and the configuration of its outputs. On this occasion, the memory corresponds to the CVs. Therefore address in CV#1 and output configuration in CV#3 to CV#6. With the register-programming, the address is in Reg. 1, however the output configuration is in the registers 2 to 5.
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Question:
The accessory-decoder LS 100 switches only once with motor-drives (here: Pilz), despite the switching-time is set to 1,5s.
Explanation:
The decoder only delivers 0,74A per output for approximately 1s, after that it shuts down because of thermal overload. Apparently the current for the point-motors is too high.
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Question:
After a decoder's RESET with the Lenz LH100 the TWIN-DECODER works peculiarly
Explanation:
A RESET serves to putting back all parameters of an appliance on a defined value again. This happens with the TWIN-DECODER by programming CV#64=1. By this way this RESET is independent from the programming-appliance. The Lenz LH100 with version 3.x at a RESET sends some default values to the decoder, no matter how these values previously were and not regarding the manufacturer of the decoder. This RESET therefore only makes sense with Lenz products, and with other products like the TWIN-DECODER, it makes no sense. Especially, the decoder at the Lenz-RESET is changed from the 14- to the 28/128-speed-step mode, what can lead to miscellaneous light-problems again (see above).
§ A loco with LE130/131 reacts no longer to the TWIN-CENTER, if the loco is turned on the track, for example by means of turntable
Explanation: Some decoders need a higher share at DCC in the mixture from FMZ- and DCC-commands. This can be put in in the TWIN-CENTER, in that the special-option SO#457 is increased, which is defaulted with the value 1. The value had to be lifted in a previous case until on 4.
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Question:
Error message after programming or reading of long addresses and after CV-bit-programming (12)
Explanation:
When programming long Addresses the TWIN-CENTER first writes to CV#17 and then CV#18, after that it sets in the decoder CV#29 Bit5=1 to switch the decoder to using the long address. After this some Lenz-decoders type LE010/11XF and LE1024/25 do not send an Acknowledge-signal, which should be sent. Because of this missing acknowledge the TWIN-CENTER gives an error message. But on the other hand the long address is active now and can be used. Reading of an address gives the same error message.
With these decoders the TWIN-CENTER generally gives an error message after CV-bit-programming, not only after programming a long address, because these decoders don't send an acknowledge. But the programming is done, the single bits can be red.
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Question:
When programming the decoders LE1024/25, there will often be a short circuit error at the TWIN-CENTER (13)
Explanation:
Before programming, the TWIN-CENTER checks the current consumption of the decoder to be programmed. If this is higher than an internal limit of the TWIN-CENTER a short circuit is assumed. This limit value is stored in SO#455. Increasing this value from the default 51 to 63 gives good results.

7 LokSound

Question:
A loco with ESU-LokSound decoder doesn't run with the TWIN-CENTER (14)
Explanation:
The ESU-LokSound-decoder is a multi-language decoder for DCC and Motorola. Probably the address of this loco is set to FMZ in the TWIN-CENTER. The decoder doesn't understand this language. Switch to DCC.
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Question:
A sound of the loco doesn't sound like that of an earlier original loco. (14)
Explanation:
The sounds of the LokSound-decoder are original soundtracks of a real loco which is still in operation. The memory of a different real prototype loco from many years ago may be a little different.
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Question:
A loco with LokSound-decoder runs very jerky with the TWIN-CENTER (14)
Explanation:
The ESU-LokSound-decoder is a multi-language decoder for DCC and Motorola, however it can be controlled wit DC- or AC-power. Other languages than DCC or Motorola, for example FMZ, are interpreted to be AC or DC-power. The decoder switches to analogous function and this leads to this jerky mode. As a remedy, set CV#29 Bit2=0 in the decoder, this turn off Power Conversion Mode to analogue mode. However the loco cannot be driven on an analogue layout anymore.
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Question:
A loco with LokSound-decoder sounds a little bit strange with the TWIN-CENTER (14)
Explanation:
For the best sound, run the vehicle on a layout with only DCC. Parts of FMZ in a multi-language mode can have some influence on tones, not on noises. Therefore for the best use FMZ has to be turned off completely. To have only DCC-signals on your layout make the following steps: in the TWIN-CENTER >Basic Settings set the following attitudes: > Special Options SO#25=1, SO#907=4, > Loco data format =DCC (14 or others), >Reset Loco data format. Now all your locos are controlled in DCC mode. Attention: A RESET of the Configuration takes back above alterations again!
Attention:
if the format of a loco-address was switched from DCC to FMZ and then back to DCC, the FMZ-Idle-Signal still remains active, (SO#25=9 automatically). Set back to SO#25=1 or =0 again.

8 Sundries

Question:
Is the TWIN-decoder suitable for Faulhaber-Motors?
Answer:
No, with older decoders, there were as many customers with positive as also negative experiences to this. Generally the 100Hz-motor-frequency is not optimal for the motor. Further there is an increase of the tension-amplitude with the TWIN-DECODER. There can be motors, that endure this, however with clearly reduced lifespan. Many won't endure it!
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Question:
The accessory-decoder No. 5212 from Viessmann doesn't work at the TWIN-CENTER.
Explanation:
With this decoder an address must be programmed first. To this, a virtual point-address first must be input in the TWIN-CENTER, that means a decoder-address, an output as well as the corresponding digital format have to be assigned (Basic Settings). Only now, can the programming-process take place for the decoder.
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Question:
Can the TWIN-box 6827 with hand controllers 6820/21 be used with the intellibox? (12)
Answer:
Yes, this is possible with the Intellibox software version V1.202 or higher.