isherer
Still laying my first track and have come across a few problems which I have managed to solve but I have one that has me puzzling.
I have 10 Cobalt IP Digital motors all working normally but one causes a track short when switching over. I have separate accessory and track buses each with own circuit breaker. The track circuit breaker is a PSX-1. If I switch the power off and back on there is no short and all works normally...until I change that point. If I turn off the accessory bus and isolate the cab, then attempting to change the point (which of course won't work) still causes the CB to trip.

I am sure there is a simple explanation so please help!
Quote 0 0
Bunkerbarge
Have you fitted isolating fishplates to both sides of the frog?
Quote 0 0
isherer
It is a Peco unifrog which has the isolation before the end rails so yes. They are definitely isolated too after checking with meter.
Quote 1 0
Bunkerbarge
Have you tried changing over the two feed wires to your frog supply change over switch?
Quote 0 0
isherer
After further investigation I now find that it is nothing to do with the track or the accessory bus. It is purely between my NCE and PSX-1. I disconnected the track output from the PSX-1 and it still does it on one accessory address if I select reverse. I can't find anyone with a similar problem after searching unless anyone knows on here. I may try changing the address (by the way it is 10) and see if that makes a difference!
Quote 0 0
AHJAY
Sounds like dodgy software setting in the PSX possibly. Set the PSX to its default software-wise and to its lowest settin power wise - I have never seen a need to ever change thhe settings in a PSX other than for power level after using and selling literally hundreds of them.

regards
Quote 0 0
isherer
Thanks Ahjay for the hint. I found that CV49 that I originally set to 1, was now 0. I reset it and all is fine. That might explain why it worked for a while before it stopped working.
Quote 1 0