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Engine Not Controllable Locos and rolling stock
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New member 21 posts mstsman New member 21 posts
mstsman

I have a Broadway Limited NS SW-1500 switcher(jitem 3343) with a Paragon 2 sound decoder.  I have a Digitrax system and was using a UT4 throttle to run the engine.  The engine is 4 years old and has been running great until yesterday.  I was switching cars when I reversed the engine.  The engine did not move.  When I reversed the engine again it started running in the other direction at a high rate of speed.  The throttle knob was at 0.  I tried other throttles I have(DT500), DT602).  I turned system off and tried again.  Same thing. Any help would be appreciated.

Thanks, Bob
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CandOfan Prolific poster 1,542 posts
CandOfan

go read the speed step configuration

I've had Paragon decoders do some weird stuff. This sounds a bit like some of the CVs got spontaneously messed up. If this were mine, I would put it on the programming track and have DecoderPro read the actual CV configurations. It sounds like the speed step is randomly kaboshed, and I guess the direction too. I save the CV configuration for all locos in DecoderPro, specifically so that I can simply restore them to the saved config if something like this happens. If you don't have a saved configuration, you may have to reset it to factory defaults and reprogram it to your specifications.

Why Paragons do this and others do not, I do not know. Perhaps their memory is not parity protected or something, I dunno. But every single one of the locos I've seen do this kind of thing has been a Paragon2 or Paragon3, and it's been several now.

Modeling the C&O in Virginia in 1943, 1927 and 1918
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