Digitrax DH166MT Manual Download Page 4

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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 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

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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

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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 DH166MT

Page 1: ...itching 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 contro...

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: ...on outputs For a more prototypical rail roading experience your decoder can be customized for your specific locomotive by programming some of the Configuration Variables or CVs available See the Digit...

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: ...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 maximum effect Consult your Digi...

Page 6: ...Whether the locomotive is stopped or moving Function Remapping Function remapping allows you to program the function outputs of your decoder to be controlled by selected function keys on your throttle...

Page 7: ...n all Digitrax command stations boosters throttles decoders power supplies and layout control devices That s it A simple straightforward warranty with no tricky language Visit www digitrax com for com...

Page 8: ...2443 Transmitter Road Panama City FL 32404 www digitrax com Need Support helpdesk digitrax com DH166MT Fits Many HO Locomotives with 21MTC interface Made in the USA TM Part 15 Class B RFI Compliant 3...

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