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user manual LokSound / LokSoundXL V3, 1st edition, 07/2004
Sound adaptation / Brake sections
Specific settings for steam engines
To simulate a steam engine you have to synchronize
the exhaust chuffs with the revolutions of the drivers.
There are 2 ways to achieve this:
•
With an external wheel sensor
•
Speed step dependent
Depending on the method selected, certain CVs have
to be set accordingly. LokSound is factory pre-set to
speed step dependent adjustment.
Using a wheel sensor
The wheel sensor must be connected as described in
chapter 3.1.6 and 3.2.6. Then two more parameters
have to be adjusted:
Set CV 57 to value 0 and enter a value > =1 in CV 58.
CV 58 defines after how many pulses by the sensor
the next exhaust chuff will be reproduced. Normally
one exhaust chuff per pulse should be played.
Speed step dependent method
With this method the interval between exhaust chuffs
is set with CV 57 and CV 58. This method is
recommended if an external wheel sensor cannot be
used.
The adaptation of this variable to the wheel / gearbox
combination may require some experiments. It pays
to spend some time in order to achieve an optimal
result. This feature works best with Back EMF control.
With Märklin® engines with universal motor (Back
EMF is always switched off) only a compromise can be
reached.
In this case we recommend the use of an external
wheel sensor. For CV adaptation proceed as follows:
•
Set CV 57 to 10 and CV 58 to 110.
•
Put the engine onto the track and drive it with
speed step 1 (sound is switched on).
•
Measure the time in seconds it takes the driver to
complete one turn at this speed.
•
Divide the time by 0,064.
•
Enter a rounded value without decimal points in CV
57, e.g. 0.9 seconds / 0.064 = 14-5= Value 9.
•
Increase the speed and check whether the exhaust
chuffs match the turns of the drivers. If the exhaust
chuffs are too fast, increase the value in CV 58
gradually, if they are too slow, decrease the value in
CV 58.
Adjusting the volume
The volume of LokSound decoders may be adapted
gradually. Enter the desired value in CV 63. Permitted
values are: 0 (quiet) to 64 (loud).
Random sound effects
CV 61 and CV 62 define the frequency of random
sounds that are played while a steam engine is
stationary. CV 61 contains the minimal time between
2 random sounds, CV 62 the maximum. Both
represent an interval in which LokSound randomly
selects and plays sounds. The unit of both CVs is 1.0
second.
Example:
the minimum interval in CV 61 should be
8 seconds. Enter 8 into CV 61. The maximum interval
in CV 62 should be 30 seconds. Enter 30 in CV 62.
5.2.5 Brake sections
LokSound decoders respond to the most commonly
used brake generators on the market:
•
Lenz-brake generator in DCC operation
•
Märklin® brake track
•
Signal dependent train control by ZIMO
As soon as the LokSound decoder recognizes a brake
command it brakes with the deceleration set in CV 4.
After this forced stop (once the signal aspect has
changed) the engine begins to move again and
accelerates according to the value set in CV 3. In
order to support this function some CVs have to be
programmed. This feature is activated in CV 51.
Lenz brake generator
The Lenz brake generator LG 100 uses the mechanisms
recommended by the NMRA standards and is
supported by LokSound decoders. Write value 8 in
CV 51.
Märklin® brake track
Instead of digital signals the Märklin® brake track
supplies a DC voltage to the tracks. To activate this
you must write 1 in CV 51. Do not activate the
Märklin® brake track and the analogue DC operation
at the same time, because the DC supplied by the
Märklin® brake track could be interpreted as analogue
DC. With CV 50 you can switch off the analogue
mode (see paragraph 7.1).
