SoundTraxx Tsunami Steam Technical Reference - Manual (Page 51)

Tsunami Technical Reference Page 49
CV 63
Analog Mode Motor Start Voltage
Description
CV 63 contains a value between 0 and 255 corresponding to the voltage
difference between when the decoder first powers up and when the
locomotive starts to move.
D0-D7: Analog Mode Motor Start Voltage Value
CV 63 may be set to any value between 0 and 255 corresponding to tenths of
a volt. Thus, a setting of 23 adds 2.3 volts to Tsunami’s default start voltage
of 7.5 volts.
Normally, Tsunami will power up in Analog mode around 5 volts or so and
the engine will begin moving around 7.5 volts. Under certain circumstances
you may experience a condition where the decoder cycles back and forth
between start up sounds and locomotive movement. The problem is usually
due to a poorly regulated power pack output. The sudden increase in load
due to the motor starting causes the track voltage to droop which in turn
resets the sound decoder. By increasing the setting of CV 63, you can
adjust the decoder so that when the motor starts, the track voltage will be
sufficiently high so that any droop that occurs will not turn off or reset the
decoder.
Default Value: 20
Bit 7 Bit 0
D7 D6 D5 D4 D3 D2 D1 D0
Misc. Control CVs