Selected SERCOS phase could not be implemented error in phase 0 transition.
Bosch Rexroth · Motion Control
¿Qué significa 844 ?
An error occurred during the transition to SERCOS phase 0, preventing the selected SERCOS phase from being successfully implemented. This is a servo loop or drive fault, indicating a critical issue in the SERCOS state machine, with no error recovery possible.
Causas comunes
- Error during SERCOS phase 0 transition.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Measure input supply voltage and DC bus voltage at the affected drive and verify against nominal specifications.
- 2
Inspect all SERCOS fiber optic cables for physical damage, proper routing, and secure connections at both controller and drive interfaces.
- 3
Verify SERCOS communication parameters (e.g., ring configuration, cycle time, drive address) in both the controller and the drive against the machine's configuration backup.
- 4
Check diagnostic LEDs on the SERCOS interface of the drive and controller for communication activity or error indications.