Elevator Forum

Don’t know about this controller but Amtech H relay traction does something similar. State wrote it up but if you stare at the prints long enough that...

Wow... never seen that one

We usually try to keep those pirated tools a bit on the DL

Is it on access?

Most MRLs use solid core ropes so if they are installed and never oiled they dry out and fail like you describe.

I got you

Wow! That’s a hell of a nice tool. Your company must like you a lot more than mine likes me.

It’s worth saying when talking about power supply capacitors that the voltage stored on them can kill you even long after the power supply has been di...

thats just one way a capacitor can fail. Electrolytic capacitors dry out over time and increase in equivalent series resistance. They are by far the m...

The switch is like DPM on an MOVFR. If the controller has no input for it, don’t use it. Did they originally have Mac operators? Wondering why they’d ...

The motor should be inverter rated but that would most likely just affect longevity. I’ve never seen an inverter type phase converter on a hydro. Thys...

Is it running the right direction?

Do you have a diagram for the field connections for that generator yet? There may be more wired wrong from the motor shop. A shunt field, series field...

This may not be relevant but worth mentioning when talking about going through IBM relays with a tester. This bit me bad a couple years ago on a WCR c...

WCR is what we call that controller. SE is not just the Safety edge in these, it’s actually your open pilot and has to pick to open the doors. It can ...