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RailKing® SD70ACe Diesel Ready-To-Run Set w/Proto-Sound® 3.0
CV57 - Anti-Jackrabbit
• This either enables or disables the feature whereby in Conventional DC one has to
lower the track voltage below approx 9VDC and then raise it again to get the engine to
move
• The only method to enable/disable this feature is through DCC
•
This feature is ONLY utilized in Conventional DC. It does not have support
for DCS, Conventional AC, or DCC
• CV57 is the CV used to toggle this. Writing a value of 7 to CV57 will disable the
feature. Writing a value of 0 to CV57 will re-enable the feature
• This feature was borne out of the request for those with automated systems that shut
down the track power to avoid collisions and for traffic management.
Operational Note –
If you are running in Conventional and you have anti-
jackrabbit disabled, your engine will not play any start-up sounds or shut down
sounds. Once the charge light goes out it will just be at the engine’s normal idle
sounds. Likewise, when you remove track power there will be no shut down
sounds. It will just be idle sounds until the super caps shut the board off
By default anti-jackrabbit is enabled at the factory.
1. To disable anti-jackrabbit ensure the engine is running in DCC
2. Connect the DCC system to the engine and power on the DCC system
3. Hit F3 or scroll the speed up to get the engine started up
4. Enter Programming on the Main (PoM)
5. Select CV57 and write a value of 7
6. The engine will give you a two honk response
7. This setting will now be saved and the engine will now operate with anti-jackrabbit
deactivated.
NOTE – Again, Anti-Jackrabbit operation only applies to
Conventional DC
8. To re-activate anti-jackrabbit repeat the above steps except write a value of 0 to
CV57
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