Just hooked up auto conveyor on my S1 and when I try to frame a job riser base exception error code M53 W2 keeps popping up. I've checked the screws all seems well. ALSO the machine has been on the riser for weeks without any errors at all not one. Plus I have been running the rotary chuck for weeks also without any errors. All the help info on xTool  has error code M53 C1. Not sure what the difference is. Any help would be welcome. Thank You.