That's very helpful, thank you!The Clearpath drives (which are 75V AC servos) have an output that can be programmed as a fault output that is asserted when a following error occurs
The SDSK drives take step/dir signals the same as the Leadshine drives that Tormach uses
Because they have a step/dir interface and there is no encoder feedback to the controller you lose some of the advantages
of a full closed loop servo system that LinuxCNC/Pathpilot can support (real time smart following error monitoring, homing to index
no need to rehome on estop/faults etc)