A Few Issues

[Class421]

I have just converted to DCC operation and I've come up with a few problems

1. One of my locos initially worked (moved fwd and backwards slowly and all the lights came on and off). However, when I set it going for a lap round the track, it just shot

 

off had top speed and there is nothing I can do to stop it except press 'stop'. Lights no longer function and I can't change direction.

2. Some loco's moving at slower speeds (1/4) over the points cause a short and the controller trips. Its mainly with

 

my margate locos but the new HST does it as well. I have a mixture of new p*co, R8072/3 and R612/3.

3. My triang locos used to stall very momentarily on points when running on DC, but now they slide almost to a stop before restarting, well away from the

 

point. I take it this is possibly a CV issue?

Any help would be much appreciated as it is giving me a bit of a headache!

[poliss]

1) Sounds like a blown decoder. If you have the Elite you could try turning off DC in CV29.

2) Check the back to back distance between the wheels. Should be 14.4mm.

3) Tri-ang locos don't have pick-ups on all wheels meaning they lose power on insulfrog

 

points. Solution. Use electrofrog points.

[Icurus]

What DCC controller and decoder are you using?

 

I used A select and I had a similar problem with TCS decoders. Upgrading to an Elite solved the problem for me.

[Class421]

Thanks for the advice, the loco which just shot off is behaving itself now and i will attempt to follow your advice in the morning

[poliss]

Ah, then it could have been a simple short circuit that caused the loco to run away.

See http://www.tonystrains.com/tonystips/2011/032211.htm for an explanation.