Set 061 to 1
Set M13 to 60
Anyway, I found a half dozen faults mostly heat related and found the two faults I was looking for. 1530 and safety string open.
I checked the controller and then the selector, something looked odd so I measured and found the bottom slowdown magnet at the top floor had slid down 5 inches. It appeared to be glued in place. Pushed a little harder and got it to slide back in place, glued it down and ran a hoistscan.
It's now running random without doors, dwelling for 30 seconds at each stop.
Crossed fingers.
2755 is "SP False AC Peak detect Interupt" - check your wiring connections and more importantly your grounds. I can't remember off hand what 2757 is unfortunately.
1926 is your NP I/O mismatch with CPU.
You might have bad software
Edit*
Fault Code 2757 is:
Selector CAN message timeout. Data from the Selector was not received in the alloted time.
You either have a loose connection or noise on your CAN
Note: This failure helped me with a sister elevator in the same complex, it also had a selector magnet that had moved 1/4th inch at an angle. Sad that about 5 years after a modernization things are coming loose.