Hello kollegs.
I need advice. During working spindle the machine surprisely stopping, spindle rotate on inertia any time, axis Z fails down 2-3 mm, and we have alarms (39-41 "axis "signal ready" missing;39-29 "Spindle not up to speed"; 39-31 "Spindle stop failure" ) In this time the loading of spindle is 85% and more till end! But spindle is not under load and no jamming.
Drives Kollmorgen BDS-4, VFS -5ill
Thank you very much