I'm getting an error drive 75 safety rts with extra info 170905. I can't find this anywhere on my fault code lists. The elevator is shutting down every couple of days with this code. Does anyone have this code meaning to get in me in the right direction?

This fault is generated when door operator reports doors reached fully closed limitand after waiting some time the hatch door locks are still not made
The Saftey circuit is open (sdoor contacts ) while the door close limit is active.

So u have a door issue. Lube clutch ramp. Check for binding.

And clean or replace door lock contacts. Especially if they're ECI!

Thanks, will do first thing Monday

It turned out to be cold solder joints at the s door relay coil