Configuration guide, Matching the speed and acceleration to the sound – SoundTraxx SurroundTraxx User Manual

Page 45

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SurroundTraxx User’s Guide

Configuration Guide Page 2:16

SurroundTraxx User’s Guide

Configuration Guide Page 2:17

To activate the dynamic brake override, first determine a baseline setting for

the Exhaust Control Setting based on the engine control mode you plan to

use (0 or 16 for Manual Notching, 1-15 for Automatic Notching) then refer to

the table and add the indicated value to that setting.

SurroundTraxx Dynamic Brake Override Control

Override Mode

EX CTL Value

Disabled

Add 0

Engine Speed = Notch 1

Add 64

Engine Speed = Notch 4

Add 128

Engine Speed = Notch 8

Add 192

Example:

We want to use automatic notching with one notch every seven speeds.

From the section under “Exhaust Control,” we determine the setting to be 7.

To use the dynamic brake override so the engine drops to an idle (notch 1)

whenever the dynamics are on, look at the table and see that this equals a

value of 64. Add this to your baseline value of 7. Thus, you will set EX CTL

to:

EX CTL = 7 + 64 = 71

Matching the Speed and Acceleration to the Sound

The next step in editing is to adjust the sound so it matches the speed the

locomotive is traveling, along with the acceleration and deceleration of the

locomotive. The maximum speed setting will also come into play when

adjusting the Fader setting on your SurroundTraxx unit. More on this can be

found in this section on page 2:25. For SurroundTraxx the maximum speed of

the locomotive is the speed of the locomotive at full speed in scale miles per

hour.

To set up the Max speed, acceleration and deceleration follow the simple

directions below:

1. From System Monitor mode, push and release the control knob. The

display reads ROUNDHOUSE; push and release the control knob again

to select it.

2. Turn the control knob until it reads EDIT LOCO. Push the control knob

to select this option. Turn the control knob until the desired locomotive

address is displayed and push the control knob to select it for editing.

3. Turn the control knob clockwise until the display reads MAXSPD: 000

(Maximum Speed Select). Push the control knob to select and enter the

maximum speed in scale miles per hour so that SurroundTraxx is able to

assess the Fader rate that we have set. SurroundTraxx uses an internal

equation to determine the fader rate based on this setting and model's

scale top speed. This will ensure that the effect of the sound traveling

Configuration Guide

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