I have an issue where my DRO's will continue but the steppers stop moving randomly. This seems to happen when the machine has been off for some time. I can hear my G540 click or rather the spindle relay kick off when the G540 'trips'. I can turn the power off to the G540 and back on, hit reset and the machine will move again. Sometimes it will work for days after getting past this point of 'tripping' but I want to figure out what is going on... Could this be a voltage problem or maybe there is an issue with my G540?