The Acceleration rates are controlled using CV3 and CV4. These CVs are mandatory. This feature is used to simulate momentum.
CV 3 and 4
The contents of these CVs are multiplied by 0.896 then divided by the number of speed steps to determine the rate of acceleration or braking. A value of zero disables the feature.
- This CV contains additional acceleration rate data that is added to or subtracted from the value contained in CV 3. It is determined by (CV 23)*0.896/number of speed steps in use.
This CV, along with CV24, is used to fine tune the momentum features set in CVs 3 and 4. These come into play when multiple unit consists are assembled.
The result is a 7 bit number, the eighth bit is the sign.
Deceleration / Braking
It is the same as CV23, except CV 4 is acted on.
Decoders manufactured by European companies use a different factor for calculating the acceleration rates.