© 2013 Digitrax, Inc.
www.digitrax.com
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Digitrax LocoMotion
®
System
Your locomotives look like the real thing, now you can make them run
like the real thing, too. Digitrax decoders incorporate torque
compensation for smooth as silk operation. You can also program CVs
that control momentum, 3 step and 128 step speed tables, switching
speed, normal direction of travel, scalable speed stabilization and more
to take full advantage of the Digitrax LocoMotion System.
Momentum-CV03 & CV04
Momentum is part of the LocoMotion System. Acceleration is controlled
by CV03 and deceleration by CV04. Both come from the factory set to
000. A range of 000 to 031 is available for both accel and decel. Try
CV03:003 and CV04:000 as a starting point for experimenting with
momentum.
Speed Tables-How the Loco Responds to the Throttle
With Digitrax LocoMotion, there are two types of speed tables: 3 Step Ta-
bles and High Resolution 28 Step Tables. Please see your Decoder Man-
ual for a discussion of the 28 Step Tables. The 3 Step Tables are set up
by programming 3 CVs: Start Voltage (CV02), Mid point Voltage (CV06)
and Max Voltage (CV05). These values are set at 000 at the factory. All
have a range of values from 000 to 255. We recommend the following CV
values as a starting point for experimenting with speed tables.
Loco Type
V Start
CV02
V Mid
CV06
V Max
CV05
Switcher
Concentrated low speed. Limited top
speed
002
038
064
Road Switcher
Prototypical top speed w/evenly
distributed curve from 0 to top speed
002
048
098
Mainline Loco
Quick increase to cruising speed then
levels off to prototypical top speed.
002
128
154
Decoder Reset CV08
Decoder reset lets you reset all CV values to the initial factory settings. To
reset all CV values, program CV08 to a value of 008. You also have the
option of resetting all values except the 28 speed step tables. To do this,
program CV08 to a value of 009.
