Home Forums General Discussion Technical Questions Omron sysmac c20 programmable controller.

3 stop hydro. Car keeps getting stuck on lower landing only Car will travel to the lower landing and doors will not open. Then it will not leave that floor. Indicator says correct floor Then they open n close randomly and the hall call button will light up with no one pressing it. Sometimes the lower landing hall call will stay lit n keep doors from closing.
My selector magnets and mechanical limit switch seem fine
Any ideas on my problem. ?

Only a few of the big ice cube relays are marked and I do not have a print for this job

Got a picture of the controller?

How can we post pics on this thread?

Either a bad emergency lowering battery or low oil.

If it is a Mowrey, I have one of those prints.

Ok Txs. I'll b back there soon. I will take pics and try to figure out what it is

Snkrhead
The car does not go to the lower landing on its own. It's when u give it a call to that floor from inside the car that it will land there and doors will not open. Door open button let's you out. Then after a power off reset the car will not leave the lower landing but excepts calls and then the lower landing hall call will light up and open the doors and or keep them open intermittently

check the slowdown limit make sure it is open when elevator stop @ bottom floor.
Check the normal limit make sure it is not open when elevator level on bottom floor.