Siemens G120C Error F30651: SI P2: Synchronization with Control Unit unsuccessful

Siemens G120C drive · taken from the manufacturer’s manual, pages cited

Fault codeF30651

The safety time slices on processor 1 and processor 2 failed to synchronize, preventing safe operation and resulting in a non-acknowledgeable STOP A. The manual lists no action for this code.

Model
Siemens G120C
Display shows
SI P2: Synchronization with Control Unit unsuccessful (F30651)
Type
Fault code
Source
Manual p. 746

What F30651 means

SI P2: Synchronization with Control Unit unsuccessful p. 746

Common causes

  • The drive integrated "Safety Integrated" function requires synchronization of the safety time slices on processor 1 and processor 2. This synchronization routine was unsuccessful. p. 746
  • This fault results in a STOP A that cannot be acknowledged. p. 746
  • Fault value (r0949, interpret decimal): p. 746
  • Only for internal Siemens troubleshooting. p. 746
  • Carry out a POWER ON (switch-off/switch-on). p. 746

If F30651 is still not resolved

  • contact service / dealer p. 4
    “Warning concept This Manual contains information which you must observe to ensure your own personal safety as well as to avoid material damage.”
  • contact service / dealer p. 12
    “WARNING Danger to life if the safety instructions and residual risks are not observed”
Open the manual at page 746 All G120C error codes Manual details & download

This page summarises what the manufacturer’s manual says about F30651; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.