CNC Operator how-to

How to Respond When a CNC Machine Alarms

Alarms prevent crashes.

Updated By the Career Education Institute Curriculum Team
Quick answer

Alarms prevent crashes. In short: press; read; check, then complete the remaining steps below.

Step by step

  1. Press feed hold.

  2. Read the alarm.

  3. Check the manual.

  4. Fix the cause.

  5. Reset.

  6. Restart carefully.

Safety reminders for CNC operators

  • Keep doors closed during cycles
  • Never reach into running machines
  • Wear eye protection
  • Know emergency stop

CNC · G-code · Work offset · Tool offset · Cycle start · Feed hold: see the full CNC operator glossary.

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