Applicable Systems
Series 0i
Series 16/18/21
Alpha
Beta
Symptoms
A CPU error was detected on the main board.
Possible Causes
- CPU hardware fault or illegal instruction execution.
- Firmware corruption or memory access violation.
Troubleshooting Steps
- Step 1: Check the CPU status and firmware integrity.
CPU fault identified. - Step 2: Replace the main board or reload firmware.
CPU error cleared after repair.
How to Reset
Fix the CPU error 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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