Digitrax DH126MT Quick Start Manual Download Page 4

© 2016 Digitrax, Inc.

www.digitrax.com

— 4 —

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 Tables and 
High Resolution 28 Step Tables. Please see your Decoder Manual 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 rec

-

ommend 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 reset

-

ting all the CV values except the 28 speed step tables and CV60 selected sound 
scheme.  To do this program CV08 to a value of 009.

Summary of Contents for DH126MT

Page 1: ...tching Speed feature for easier and faster access to yard speeds 3 Step Speed Tables set start mid and max voltage for custom control 28 Step Speed Tables with 256 level resolution for precise control...

Page 2: ...tallation Arrange internal wires to expose the jumper board in the locomotive 2 Remove the jumper board from the locomotive s 21MTC pins Figure 2 The jumper board allows the loco to operate on a stand...

Page 3: ...our Decoder Your Digitrax decoder is ready to run and will operate using address 03 with no additional programming For a more prototypical railroading experience your decoder can be customized for you...

Page 4: ...es of speed tables 3 Step Tables and High Resolution 28 Step Tables Please see your Decoder Manual for a discussion of the 28 Step Tables The 3 Step Tables are set up by programming 3 CVs Start Voltag...

Page 5: ...eed Stabilization Back EMF is controlled by CV57 The factory setting for this feature is 006 which is suitable for most locos You can adjust this value in the range of 000 for OFF to 015 for the maxim...

Page 6: ...ed by selected function keys on your throttle Please consult the Digitrax Decoder Manual or website for information on function remapping Warranty Repair Digitrax gives a one year No Worries Warranty...

Page 7: ...2016 Digitrax Inc www digitrax com 7 This page left intentionally blank...

Page 8: ...er Sound Programmer TM EMPIRE BUILDER Super TM 0 0 0 0 2443 Transmitter Road Panama City FL 32404 www digitrax com Need Support helpdesk digitrax com DH126MT Fits Many HO Locomotives Made in the USA T...

Reviews: