SoundTraxx Union Pacific Gas-Turbine Electric - Manual (Page 9)

Tsunami User’s Guide for the Union Pacific Turbine Page 6
can be decreased using Function 10. Unlike Automatic Notching, pressing
Emergency Stop will reduce the engine speed to idle. Once the engine is
idling, you shut it off by pressing Function 10.
When manual engine notching is selected, both the radiator fans and air
compressor sound effects will no longer be controlled by F9 and F10.
Instead, they can be configured to turn on automatically whenever the engine
sound is playing with CV 112.
Engine Interlock
The Engine Interlock feature is designed to work with Manual Notching and
helps avoid embarrassing moments like accidentally shutting off your prime
mover while cresting a grade!
When enabled, the Engine Interlock prevents the diesel engine from being
shut off unless the locomotive is stopped. Similarly, the locomotive will not
respond to the throttle until the diesel engine has first been started up.
Additionally the motor speed is limited while the turbine prime mover is shut
down to the speed step value based on your settings in CV 199 (see next
page)
Engine Auto-Start
When active, the Auto-Start feature starts up the prime mover sound
automatically whenever the decoder is powered up regardless of whether
or not it is addressed by the user. in this manner, the locomotive will begin
producing sound without any user intervention.
To use the Auto-Start feature, first determine the baseline value for CV
116 based on your choice of manual (setting of 0 or 16 - Interlock ON) or
automatic engine notching (settings 1 through 15). Then to enable auto-start,
add 32 to the setting in CV 116.
Dynamic Brake Mode
While the
Dynamic Brakes
are applied,
prototype
practice usually
requires the
turbine speed
to be lowered
to an idle. This
decoder allows
you to replicate
three Dynamic
Brake modes. When enabled, turning on the Dynamic Brake function (F4) will
cause the dynamics to “engage”. This is the default setting.
The second Dynamic Brake mode causes the turbine to shut down and the
diesel engine to automatically decrease to notch 2 before the dynamic brake
is activated. To use this mode, add a value of 64 to the base value in CV 116.
Add to Base Value Feature
CV 116, Interlock, Auto-Start and Dynamic Brake Modes
(Values to be added to base CV setting)
Interlock
Auto-Start
Dynamics at Notch 2
Dynamics at turbine idle
Add 16
Add 32
Add 64
Add 128
Operation