Elevator Forum

Call one of the "non proprietary" controller manufacturers and ask them for a circuit board schematic. And copies of all their software code. The poi...

If your unit has the machine tach in addition to the resolver - check for slippage.

I completely agree. I think code should require door lock monitoring on all existing equipment as well as new. Anytime car door is on open limit, door...

Yes .But actually any board in rack is a possibility - all share common data bus. However, MGI shares secondary backplane with IOT - look into drawer ...

try new MGI bd

MPT board monitors two separate 5v supplies (and 24v as well) . Check them at the board, not at the power supply. Set to 5.05 at board. Check the firs...