choralc Posted May 18, 2015 Share Posted May 18, 2015 When testing the installation of Lenz 150S decoders One port seemed to be applying power for at least 3-5 seconds at a time. This happened a few times before I disconnected the power and replaced the point motor installation to under the track. All the other 17 ports (three decoders) fired as expected so I decided to reset the decoder. It now only fires the point in one direction but not the other. Before replacing the wiring tomorrow I was thinking that perhaps this port had been set up to work a slow-action motor and hence the long application of power. So is it possible that one terminal (green) has been fried but the other terminal (red) will still work? I don't think I've damaged the decoder port because when I brought it inside for a reset I tested a different point motor and on all ports it worked in both directions. Have I damaged the wiring between the motor and the decoder? I intend to move wires around tomorrow to narrow it down before having to unsolder wires and remove track yet again. Link to comment Share on other sites More sharing options...
2e0dtoeric Posted May 18, 2015 Share Posted May 18, 2015 The obvious error is that you have NOT connected the 'common' wire on the motor to the 'common' on the decoder, so although it will fire one way, it has no circuit in the other direction.I've not used Lenz, so I cannot comment on the programming. Link to comment Share on other sites More sharing options...
96RAF Posted May 18, 2015 Share Posted May 18, 2015 Do a continuity test from common to each pole of the solenoid motor that is suspect. The actual values are not important but they should both be about the same. Link to comment Share on other sites More sharing options...
choralc Posted May 18, 2015 Author Share Posted May 18, 2015 2e I most certainly did connect all three wires :) I will check that the extension wire I soldered on and then sealed with heat shrink does have continuity and that where it 'plugs' in has metal contact rather than insulation. As I said I had tested the unit when I reset it before replacing into the layout which is why I was wondering if I had destroyed the R8014. Link to comment Share on other sites More sharing options...
choralc Posted May 18, 2015 Author Share Posted May 18, 2015 RAF, I will certainly try a continuity test. Link to comment Share on other sites More sharing options...
Fishmanoz Posted May 18, 2015 Share Posted May 18, 2015 Assuming it's wired correctly like all your others and only works one way, then yes you could have fried one half of it. Link to comment Share on other sites More sharing options...
choralc Posted May 19, 2015 Author Share Posted May 19, 2015 Motor replaced and working correctly proving there was nothing wrong with the wiring. I have learned another lesson: restore all second hand decoders to default settings and program from there. Link to comment Share on other sites More sharing options...
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