Applicable Systems
Series 0i
Series 16/18/21
Alpha
Beta
Symptoms
X axis APC pulse loss detected.
Possible Causes
- Pulse loss in the absolute pulse coder.
- Encoder hardware degradation or cable damage.
Troubleshooting Steps
- Step 1: Check encoder cable and connections.
Cable and connections verified. - Step 2: Replace the encoder if pulse loss continues.
Pulse loss resolved after encoder replacement.
How to Reset
Fix the pulse loss issue 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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