QUOTE (ebaykal @ 16 Jul 2008, 16:43) <{POST_SNAPBACK}>Layout activity has commenced, mounted the Fleischmann turntable.
Weathering, kitbasching,scratchbuilding, scenary...I can move mountains, but when it comes to electrical bits I am a hopeless case.
I know Doug and Neil are operating one so would appreciate their feedback.
Basically, in a simplified manner I want to do the below:
For the time being I do not want to operate it with an accessory decoder but from an analog transformer. i.e, The turning and indexing etc will be controlled by Fleischmanns own controller via a analog transformer. (AC) But the rails of the turntable will be DCC.
Layout is all DCC operated. Bus wires is as shown in the diagram. Every 1,5 meters there is a dropper. All five rails to the turntable are fitted with isolated fishplates.
Now question is, the polarity issue. There will be two exits one on the top and one on the bottom but with different polarities.
Will this short the turntable. What happens when the turntable rotates 360 degrees? (Polarity?) or is it insignificant in dcc operation?
Before doing anything wrong need all your advice.
Baykal
Hi Baykal.
I use one such turntable. Analogue control as your diag. However, I have placed the turntable and shed in a separate power district. The separate power booster feeds the turntable tracks and acts as an auto-reverser. The feed to the shed tracks comes from the turntable tracks, the tracks are otherwise kept electrically dead. I do not keep the shed tracks live as I believe that it is safer to keep stabled locos and trains on tracks which are electrically dead. Safer in the long run.
The power district in your case could start at the exit from the main line.This is a ZTC550 Power Booster, which is rather over engineering the case. There are other such devices, Lenz LK100, which do that job.
Hope this is of use to you.
By the way, what software do you use to draw the track diagrams, it looks great. I am a complete novice in this area.
Regards,
Hugh Williams
Weathering, kitbasching,scratchbuilding, scenary...I can move mountains, but when it comes to electrical bits I am a hopeless case.
I know Doug and Neil are operating one so would appreciate their feedback.
Basically, in a simplified manner I want to do the below:

For the time being I do not want to operate it with an accessory decoder but from an analog transformer. i.e, The turning and indexing etc will be controlled by Fleischmanns own controller via a analog transformer. (AC) But the rails of the turntable will be DCC.
Layout is all DCC operated. Bus wires is as shown in the diagram. Every 1,5 meters there is a dropper. All five rails to the turntable are fitted with isolated fishplates.
Now question is, the polarity issue. There will be two exits one on the top and one on the bottom but with different polarities.
Will this short the turntable. What happens when the turntable rotates 360 degrees? (Polarity?) or is it insignificant in dcc operation?
Before doing anything wrong need all your advice.
Baykal
Hi Baykal.
I use one such turntable. Analogue control as your diag. However, I have placed the turntable and shed in a separate power district. The separate power booster feeds the turntable tracks and acts as an auto-reverser. The feed to the shed tracks comes from the turntable tracks, the tracks are otherwise kept electrically dead. I do not keep the shed tracks live as I believe that it is safer to keep stabled locos and trains on tracks which are electrically dead. Safer in the long run.
The power district in your case could start at the exit from the main line.This is a ZTC550 Power Booster, which is rather over engineering the case. There are other such devices, Lenz LK100, which do that job.
Hope this is of use to you.
By the way, what software do you use to draw the track diagrams, it looks great. I am a complete novice in this area.
Regards,
Hugh Williams