FANUC
414 SERVO ALARM: DETECTION SYSTEM ERROR
서보 검출계 이상What it means
The digital servo detected an internal fault. The number alone is not enough; read the diagnostic bits.
Check first
- Read diagnostic bits DGN 200-204 (OVC, HCA, FBA...)
- Record amplifier STATUS display
- Narrow down with the bits before swapping parts
Common causes
- Encoder or encoder cable
- Amplifier fault
- Overheat
Field fixes
No field cases yet.