Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 352)

Chapter 12
Overtravels and Programmable Zones
12-14
To reset a software or programmable zone overtravel condition:
1. Determine whether the control is in E-STOP. If it is not, go to step 4.
2. Look for and eliminate any other possible conditions that may have
caused emergency stop, then make sure that it is safe to reset the
emergency stop condition.
3. Press the button to reset the emergency stop condition. If the
E-STOP does not reset it is a result of some cause other then
overtravel causing E-STOP.
4. Make sure it is safe to move the axis away from the overtravel limit.
5. Use any of the jog features discussed in section 4.1, except homing to
manually move the axis away from the limit.
END OF CHAPTER