Have an older Williams reverse unit with all hard wired soldered connections. Had it working today then a derailment and some odd behavior. It starts in neutral like normal then cycles to forward. A normal 1 sec power interruption clicks the relays but it keeps going forward. A longer interruption will click relay and get to neutral but next interruption goes to forward again. Love to try to fix myself any ideas?
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I believe the way these work, the reason for 2 relays, one is direction- so NC is one direction and NO is the other. The the other relay is NO is no power or movement, and NC would be drive? I might have that latter part mixed up.
So it appears the direction relay is never firing changing directions. Another possible answer is the contacts welded in the relay ?
Again, one answer, one of the small signal transistors that drives the direction relay is damaged and never fires the coil for the direction relay, or the actual relay got welded from a current spike?
Sadly, I have no clue which relay is direction vs on/off motor.
https://ogrforum.ogaugerr.com/...ams-lock-out-reverse
I’ll keep probing around. Relays work with a 3v test battery.
anyone out there repair these for reasonable cost or have a working one for cheap? Pm me.
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