©2009 Digitrax, Inc
www.digitrax.com
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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,
scaleable speed stabilization and more to take full advantage of the Digitrax
LocoMotion™ System.
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Momentum is part of the LocoMotion™ System. Acceleration is controlled by
CV03 and deceleration by CV04. Both come from the factory set to 000/x00. A
range of 000/x00 to 031/x1F is available for both accel and decel. We recom-
mend that you try CV03:003/x03 and CV04:000/x00 as a starting point for
experimenting with momentum.
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With Digitrax LocoMotion™, there are two types of speed tables: 3 Step Tables
and High Resolution 28 Step Tables. Please see your Digitrax Decoder Manual
for a discussion of the 28 Step Tables. The 3 Step Tables are set up by program-
ming 3 CVs: Start Voltage (CV02), Mid point Voltage (CV06) and Max Voltage
(CV05). These values are set at 000/x00 at the factory. All have a range of val-
ues from 000/x00 to 255/xFF. We recommend the following CV values as a
starting point for experimenting with speed tables.
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Trraacckk!!
Loco Type
V Start
V Mid
V Max
CV02
CV06
CV05
Switcher
Concentrated low speed. Limited top
002/x02
038/x26
064/x50
speed
Road Switcher
Prototypical top speed w/evenly
002/x02
048/x30
098/x62
distributed curve from 0 to top speed
Mainline Loco
Quick increase to cruising speed then
002/x02
128/x80
154/x9A
levels off to prototypical top speed.