Installation And Wiring; Random And Switch Input Sounds - ZIMO MX638 Series Instruction Manual

Page 52 Non-Sound Decoder MX618 - MX638 and Sound Decoder MX640 - MX659
De-
CV Denomination Range
fault
Key for raising diesel
#339 0 - 28 0
sound step
Diesel sound step
#340 and possibly more 0 - 10 0
keys.

5.8 Random and Switch Input sounds

CV Denomination Range Default
Random generator
Z1
0 - 255
Minimum interval
#315 1
=
0 - 255 sec
0 - 255
Random generator
Z1
#316 60
=
Maximum interval
0 - 255 sec
Random generator 0 - 255
Z1
#317 5
=
Playback length
0 - 255 sec
#318 0 - 255 20
As above but for
#319 0 - 255 80
sound generator Z2
#320 0 - 255 5
#321 0 - 255 30
As above but for
#322 0 - 255 90
sound generator Z3
#323 0 - 255 3
#324 As above but for 0 - 255
Description
Function key that raises the diesel sound to the minimum
speed defined with CV #340.
See below if more keys for further speed raises are required.
The minimum diesel step the sound is to be raised to with the
function key defined with CV #339.
This CV can be extended (to include more function keys (in
succession) by applying the formula:
Minimum speed step + (16 * (Number of keys -1))
Description
The random generator generates internal pulses in irregu-
lar intervals that are used to playback a sound file assigned
to the random generator. CV #315 defines the shortest
possible interval between two consecutive pulses.
Sound samples are assigned to the random generator Z1
with the help of the CV #300 = 101 procedure, see above!
By default, the compressor is assigned to Z1.
Special note to random generator Z1:
The random generator Z1 is optimized for the compressor
(which should be played back shortly after the train has
stopped); therefore the default assignment should be re-
tained or at the most be used for a different compressor.
CV #315 also determines the proper time the compressor
is started after coming to a stop!
CV #316 defines the maximum time interval between two
consecutive pulses of the random generator Z1 (that is
most often the start of the compressor after coming to a
stop); the actually occurring pulses between the values in
CV #315 and #316 are equally distributed.
The sound sample assigned to the random generator Z1
(most often the compressor) is played back for the
timespan defined in CV #317.
= 0: Sample plays once (in the defined duration)
By default, Z2 is assigned for coal shoveling at stand-still.
By default, Z3 is assigned for the injector at stand-still.
As delivered, this random generator is not assigned to any
#325 sound generator Z4 0 - 255
#326 0 - 255
#327 0 - 255
As above but for
#328 0 - 255
sound generator Z5
#329 0 - 255
#330 0 - 255
As above but for
#331 0 - 255
sound generator Z6
#332 0 - 255
#333 0 - 255
As above but for
#334 0 - 255
sound generator Z7
#335 0 - 255
#336 0 - 255
As above but for
#337 0 - 255
sound generator Z8
#338 0 - 255
0 - 255
Switch input 1
#341 0
=
Playback duration
0 - 255 sec
0 - 255
Switch input 2
#342 0
=
Playback duration
0 - 255 sec
Switch input 3
0 - 255
(if not used for the
#343 0
=
cam sensor)
0 - 255 sec
Playback time
6

Installation and Wiring

General information:
There has to be enough free space inside the vehicle so that the decoder can be mounted without
exerting mechanical stress. Pay particular attention that no pressure is applied to the decoder when
the loco housing is being reinstalled and the wires can't get caught by movable parts.
All direct connections that are present in the original wiring configuration between the power pick-ups
(wheels and wipers) and the motor must be isolated; otherwise the motor end stage may get dam-
aged at power-up.
The same goes for the headlights and other additional accessories, which must be completely iso-
lated.
Do noise suppression components on a locomotive motor have
Yes, sometimes . . .
sound.
As delivered, this random generator is not assigned to any
sound.
As delivered, this random generator is not assigned to any
sound.
As delivered, this random generator is not assigned to any
sound.
As delivered, this random generator is not assigned to any
sound.
The sound sample allocated to switch input 1 is played
back for the duration defined with this CV.
= 0: Play back once (duration as recorded)
The sound sample allocated to switch input 2 is played
back for the duration defined with this CV.
= 0: Play back once (duration as recorded)
The sound sample allocated to switch input 3 is played
back for the duration defined with this CV.
= 0: Play back once (duration as recorded)
a negative effect on motor regulation?