SoundTraxx Tsunami Steam Users Guide - Manual (Page 67)

Tsunami Steam Sound User’s Guide Page 64
A CV setting of 5, for example, requires you to quickly increase the throttle by
at least five speed steps before the whistle will sound off.
Tip: Use the momentum CVs 3 and 4 to help minimize any sudden changes
in locomotive speed when the throttle is turned up. A quick flick of the throttle
knob (i.e., turn it up and then immediately back down) will usually sufficient to
activate the whistle without causing any undo change in actual speed.
Brake Squeal Sensitivity
The automatic brake squeal is activated whenever Tsunami senses a sudden
decrease in the throttle setting (or track voltage in analog mode) as set by
the value in CV 196. This CV can be set to any value between 0 and 126 but
as with CV 195, you will want to use a value between 3 and 10. Too low a
setting will result in the brakes squealing with speed decrease and too high a
setting will require an extreme change in the throttle to trigger the sound.
As an example, a CV setting of 3, requires you to quickly lower the throttle by
at least three speed steps before the brake squeal comes on
Analog Mode
While Tsunami is first and foremost a DCC decoder, it may be used on a
DC powered layout, within certain limitations, by enabling the Analog Mode
feature. First set CV 12 to 1 and then set CV 29 to a value that enables
analog mode as well as any desired DCC parameters such as the address
range and so forth as discussed under Step 2, ‘Configuring the Decoder’
earlier in this manual.
Analog Mode Operation
When analog mode is enabled, you may control your locomotive using
an ordinary power-pack though operation will be a bit different than when
running non-decoder equipped locomotives.
With the power pack’s throttle set to zero, Tsunami will be silent as it has
no power. The throttle must be turned up to around 5 volts or so to provide
sufficient voltage to power up Tsunami’s internal circuitry. At this point, you
will begin to hear the background sounds such as the blower and airpump
start.
Increasing the throttle further to around 7.5 volts or so will set the locomotive
in motion, increasing speed as the throttle is increased. Note that the
direction can only be changed when the locomotive is stopped. Load
compensation is also disabled when operating in analog mode, as is the
cam-synchronized exhaust chuff. When in analog mode, the Tsunami always
reverts to auto exhaust using the chuff rate setting in CV 116.
When operating in analog mode, be careful not exceed Tsunami’s input
voltage rating of 27 volts. When your track voltage exceeds 21 volts, Tsunami
will automatically shut down and begin flashing Error Code 10 on both its
diagnostic light as well as the headlight and backup light. When you see this
Miscellaneous Features