SoundTraxx Union Pacific Gas-Turbine Electric - Manual (Page 6)

Tsunami User’s Guide for the Union Pacific Turbine Page 3
the Turbine Start Speed. In this mode, the turbine RPM increase value found
in CV 116 won’t start until you pass the value set in CV 199.
CV 200 Turbine Timeout sets the number of seconds before the turbine will
turn off in Auto-notching mode.
Setting CV 200 to a value between 1 and 255, equates to the number of
seconds it takes before the turbine turns off when using Auto-notching and
when a) the locomotive is at speed step 0 and b) no functions are left on.
The default setting is 10 seconds.
Mode 2 - Semi Auto-notching Mode
Semi Auto Mode works the same as Auto-notching (see CV 116 above)
except that the turbine can now be turned on and off with F9 and F10. There
is no limitation on how fast you can run the diesel engine in this mode. To
enable this mode, set CV 200 to 0. If your cab does not support functions
F9 and F10, these functions can be remapped (see Function Mapping in
the Tsunami Diesel User’s Guide, or Function Output CVs in the Technical
Reference).
CV 116 can be set between 1 and 15 to enable Automatic Engine Notching
Mode.
CV 200 Turbine Timeout enables the semi-automatic mode. If CV 200 is set
to 0, then the turbine sound can be turned on using Function 9 and turned
off using Function 10, but all RPM notching is automatic according your
selection in CV 116.
Mode 3 - Manual Notching Mode without Speed Limitation
Manual Notching allows you to control the engine RPMs manually and
independently of the throttle setting. Manual Notching allows for more
prototypical operating scenarios such as having a heavy train slowly climb a
grade while the engines are laboring at full power.
CV 116 sets the decoder to use Manual Notching when the value is set to 0.
Then, the engine RPMs will increase by one notch each time Function 9 is
pressed. Similarly, the RPMs 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. (There is no effect on the speed limitations on
the diesel prime mover when this mode is selected.)
Note: Operation modes 4 and 5 were designed to allow the most realistic
operation of the Turbine decoder by incorporating Speed Limiting on the
motor until the turbine sound effect is turned on. The main purpose of the
diesel engine on the prototype was to hostle the locomotive around the yard
and run the air compressor. By nature then, the diesel would be operating
at very slow speeds when the turbine was turned off. By enabling the Speed
Operation