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SP0980
SIC-LSI Faulty (Spindle Amplifier Side, 15i)
Fanuc · AC Spindle Motor Alpha i-Beta i Series Parameters
¿Qué significa SP0980 ?
The SIC-LSI (Serial Interface Converter-LSI) on the serial spindle amplifier side for Series 15i is faulty. This indicates a hardware error on the amplifier's communication interface.
Causas comunes
- Failure of the Serial Interface Converter-LSI chip on the spindle amplifier.
- Internal short circuit within the spindle amplifier's communication circuitry.
- Power supply fluctuations affecting the SIC-LSI operation (e.g., below 5V).
- Overheating of the spindle amplifier causing SIC-LSI malfunction.
- Corrupted firmware within the spindle amplifier's control board.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Measure the regulated 5V supply to the SIC-LSI chip on the amplifier board.
- 2
Inspect the SIC-LSI chip for visible signs of damage or overheating.
- 3
Attempt to clear amplifier alarms via the CNC interface (e.g., 'Reset' button).
- 4
Check for diagnostic indicators or LEDs on the amplifier's main board.
- 5
Verify the spindle amplifier's operating temperature is within specification.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Fanuc AC Spindle Motor Alpha i-Beta i Series Parameters