Loading…
21
Rant: I learned so much from old relay systems, but now it's all digital
I mean, back in the day, almost every elevator ran on relay logic. You had to understand how each relay connected and what it did. I spent hours tracing wires to find a single bad contact. Once, I fixed a door that wouldn't close by cleaning a corroded relay in a hospital lift. These days, it's mostly about swapping out digital boards and running software checks. It's faster, but I kind of miss the hands-on fix. Maybe it's just me, but that skill taught me a lot about how things really work.
3 comments
Log in to join the discussion
Log In3 Comments
sandra_ross7mo ago
Tried fixing a digital board once and totally messed it up, so @the_hayden might be right about the magic part.
10
the_hayden7mo ago
Ugh, I feel that. Digital stuff is just black box magic sometimes. You miss actually touching the problem.
0
victor1017mo ago
Yeah, the "black box magic" thing is too real. It's like the problem is happening in a different room and you're just yelling at the door. Give me a broken gear or a burnt wire any day, something you can actually point at and say "there it is.
7