What it means
When the drive boots, it checks the files on the memory card. Fault F01041 Parameter save necessary means this check found defective or missing files, so the parameters must be saved again. The manuals describe the fault identically for the G130, G150, S120 and S150 — one wording covers all four. Neighbouring faults of the parameter save and project download group (F01033, F01034, F01036, F01038, F01039, F01040, F01042, F01043) have their own pages.
Why it appears
- Defective or missing files were detected on the memory card when booting.
What to check
- Save the parameters.
- Download the project again to the drive unit.
- Update the firmware.
- If required, replace the Control Unit and/or the memory card.
Reading the message value
- The drive writes the fault value to r0949; interpret it as a decimal number to see which file operation failed.
- 1 — source file cannot be opened.
- 2 — source file cannot be read.
- 3 — target directory cannot be set up.
- 4 — target file cannot be set up/opened.
- 5 — target file cannot be written to.
- Additional fault values are only for internal Siemens troubleshooting.
Parameters the manual names
- r0949 — fault value of this fault; read it here (interpret decimal) to identify which file operation failed when the drive booted.
Acknowledging and restarting
The fault must be acknowledged immediately. Acknowledging on its own does not remove the cause: carry out the remedy steps first — save the parameters, download the project again, update the firmware and, if required, replace the Control Unit and/or memory card — then acknowledge. The drive takes no automatic action on this fault.
The same on every family
Every manual that describes F01041 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | NONE | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1380 |
| S120, S150 | NONE | IMMEDIATELY | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS S120, S150 List Manual · p. 2567 |
The drives this code lives on
F01041 is described for G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS fault F01041 Parameter save necessary mean?
The drive found defective or missing files on the memory card while booting and demands that the parameters be saved. The fault value in r0949 tells which file operation failed.
How do I clear F01041 on a G130, G150, S120 or S150?
Save the parameters, download the project again to the drive unit and update the firmware; if required, replace the Control Unit and/or memory card. Then acknowledge the fault immediately.
What do the fault values of F01041 mean?
Interpret r0949 as a decimal number: 1 source file cannot be opened, 2 source file cannot be read, 3 target directory cannot be set up, 4 target file cannot be set up/opened, 5 target file cannot be written to. Other values are only for internal Siemens troubleshooting.
Can I just acknowledge F01041 and keep running?
The drive takes no automatic action and the fault is acknowledged immediately, but it is raised at boot because files on the memory card are defective or missing, so the remedy steps above are needed first.
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the F01xxx group · SINAMICS manuals · Siemens manuals