I've been seeing a lot of ropes slipping lately and then the drives try to catch up and kick out a fault. Eco and Monospace have virtual hoist ways so one way to see if you losing traction is to run hoist way access down from the top floor till it stops. Make a mark on the rail where it stopped next to one of the magnets. From the keyswitch run the elevator up and down 3 to 4 feet each time for maybe 10 times. Run the car all the way down on hoist way access till it stops again . It should stop at the mark you made on the rail. If not your slipping , may need to tighten the brakes or take a counterweight out.
