Model Railway Forum

I have put a 21 pin decoder into my Class 28 but when it runs forward it runs with the two axle bogie first. Is there any way I can alter the settings so that it would run three axle bogie first when it is going forward? If there is please write it in simple terms - I'm brand new to DCC.

Change CV29 to ‘reverse’ the direction - this calculator will help to work out the value you need.

http://www.2mm.org.uk/articles/cv29%20calculator.htm

Two possibilities.

1. Reverse the wiring connections on the motor.

2. Alter CV29. You really need to read CV29 to find out it's value. If that value is even, then add 1 to it and write that value back to CV29. If it is an odd number, subtract 1 from that value and write it back to CV29.

Sounds more complicated than it is.

What controller are you using? Some have a very simple way of reversing the default direction.

Thanks for the responses. I'll have a go ASAP.