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Error Message F28

Valid for S300, S400, S600, S700

Display Meaning Possible cause Measure S300/S700 Measure S400/S600
F28  S400/S600: ext. Trajectory 

S300/S700: Fieldbus Error

"External trajectory" error is generated if the setpoint jump exceeds the maximum permissible value when the external position trajectory is specified.  - Adaptation of the specified values (VLIM / PVMAX
EtherCAT: The "synchronization" error is generated if the drive cannot be synchronized during phase ramp-up or if the drive loses its synchronization in EtherCAT "Operational" state.  Check EtherCat system. -