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24
Speed Step Change
25
There may be occasions when locomotives fitted with older generation decoders/motors may be required to be
controlled by the
Select
. To get optimum control with these locomotives, it may be necessary to change the
speed step range sent from the controller.
The
Select
by default divides the full speed range for a locomotive decoder into 128 discrete speed steps. This
suits most modern decoders. However, in addition to the default 128 speed steps the
Select
can be set to
transmit 14 or 28 speed steps to control the full speed range. This is set on a per locomotive basis, thus allowing
varying speed step capability for all locomotives on the layout.
Note:
Fewer speed steps will give a coarser control of the locomotive when compared to the full default 128
speed steps.
Note:
All Hornby decoders are optimised for 128 speed steps.
Note:
Changing speed steps is a controller function. Nothing will be changed in the decoder. i.e. you do not have
to have the locomotive on the main or programming tracks when carrying out this procedure.
In the procedure described below we will change the number of speed steps transmitted to locomotive 1.
With the locomotive address of the locomotive to be affected by the speed step change on the
Selects
display.
Programming Track
When addressing locomotives and Hornby Point/Accessory Decoders it is important that all other locomotives
are removed from the track. It is also important that all point decoders are disconnected from the layout.
This can become rather difficult at times, therefore it is suggested that a Programming Track is used for the
allocation of addresses.A Programming Track is a length of track electrically isolated from the main circuit
one Hornby R8206 Power Track and an R046 lever switch.To initiate the Programming
Track, (see diagram below) use the Lever switch to disconnect the
Select
from the "main" track and
To programme a locomotive follow the instructions on Page 9.
In respect of the older R8216 and the current R8247 Point/Accessory Decoders it is not necessary for
them to be in position and connected to their respective point motors for them to be programmed.
It is much easier if they are programmed on the Programming Track.This is simply done by connecting
the Point/Accessory Decoder to the track, (using the R602 Power Clip) supplied with the unit this will allow
for the programming to be carried out as described on Page 26.
1.
Press and hold “FUNCTION“ + “CANCEL” for 1 second.
2.
The Speed Step will increase with each press of “FUNCTION“ + “CANCEL”, 14, 28, and H5 (128).
3.
Press “SELECT” to confirm the required Speed Step setting.
comprising
connect "Programming track."
When you have completed programming, return the lever switch to it's original position to resume
locomotive control.
Changing speed steps associated with a loco:
