Elevator Forum

I could be wrong, especially because I can't see what else is going on, but from the picture I'd guess they're taking three phase and making DC. Is th...

A static converter might need to be substantially oversized for the motor it's running. I ran into problems running my lathe and mill using a converte...

I'm a fan of having weights brought out when any substantial work is done to a brake.

Service tool is fine, or you can do it via the controls on the door operator

Did you do the sequence for the UCM reset?

Like the others suggested, separating the two shouldn't be a very big challenge. The 1230's are pretty basic. U.S. relay controllers from the same per...

Originally Posted by Rolly Isn't it Amazing how these units were made in the 1940's and still running. The big 4 today can barely keep an Elevator run...

There was a lot of variability among Reliable's controllers. What flavor of brown do you have? H-relay? Omega?

MJZ, "Drifting up" is very serious. One a scale of 1 to 10, I'd put it somewhere between 9 and 10. Call a qualified technician to fix this problem imm...

But did you read the suggestions on how to prevent this?Some are relevant, some don't strike me as being all that helpful. 1. Notify supervisor before...

Thanks again for the reminder how to get to the super-secret parameter codes. The problem is now resolved. The problem was actually with the DC bus fi...

THANK YOU! Now that you mention it, I remember having to travel some hidden secret path in the past. My plan for tomorrow involves swapping the lower ...

Hmmm... my CVT's didn't have a GE drive, and not sure if they were 8600. I might have manuals stashed away, but I've got a ton of good boards. Won't b...

Hey, Jboy. The others are pointing you in the right direction. The MP1220 will only have Hall Riser Voltage is when the controller is in Mode D (norma...