Applicable Systems
Series 0i
Series 16/18/21
Alpha
Beta
Symptoms
G27 reference point check detected that an axis did not return to the reference point.
Possible Causes
- The axis position does not match the reference point when G27 is executed.
- Axis was moved away from the reference point after return.
Troubleshooting Steps
- Step 1: Check the axis position relative to the reference point.
Position mismatch identified. - Step 2: Perform reference point return and retry G27.
G27 check passes after reference return.
How to Reset
Return to the reference point and reset to clear the alarm.
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Source: Fanuc 0i/0iMate Alarm Code List, FANUC Corporation
Category: CNC
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