I just discovered another major plus to the enhanced lower limit switch on the lift-bridge! I was working on the layout and I needed to put the bridge down, on the way down suddenly it clicked a couple of times and went dead! OH CRAP!!! I thought! I looked and a light was blocking the way down! Oh, I can fix that, I raised it a bit, moved the light, and all was well.
Rewind to the original lower limit switch technique. The bridge would have stopped, no doubt about that. However, since the lower limit is a hard limit on the travel of the bridge, the motor would have kept running and unspooled the cable creating the mess that you are familiar with if you've ever had the lower limit switch mis-adjusted or something blocked the bridge coming down!
