Shahid Sheikh wrote:
>
> Greeting everyone,
>

<snip>
>
> The problem is that the motor has a small flywheel attached to it which
> keeps it going for a while after the supply has been shut off.
>

The standard for this doesn't specify an actual stopping distance. It
only specifies that the motor will be programmed to zero as soon as the
emergency stop code is received. I think that if you remove power, that
should be sufficient.

And a sudden stop can be almost as dangerous as a collision.

> This is for a model train decoder and I'm trying to figure out how I'm going
> to implement an emergency stop.

<snip>

Have you downloaded the Digital Command Control specifications from the
NMRA Website?

Good luck!

Russell Hedges