What it means
F03000 — in the manuals NVRAM fault on action
— is raised when a fault occurs while the drive executes an action for the NVRAM data, started with p7770 = 1 or 2. What exactly went wrong is coded in the fault value that the drive stores in r0949: interpreted hexadecimal, the value has the structure yyxx hex, where yy is the fault cause and xx the application ID. Four causes are distinguished (yy = 1 to 4), so read the fault value before starting the remedy.
Why it appears
- A fault occurred during execution of the action p7770 = 1 or 2 for the NVRAM data.
- Which of the four causes (yy = 1 to 4) applies in your case is shown by the fault value in r0949 — the decoding is listed below.
What to check
- Read the fault value in r0949 and interpret it hexadecimal: yy gives the fault cause, xx the application ID.
- Carry out the remedy that corresponds to the result of the troubleshooting, i.e. eliminate the cause identified by yy.
- If necessary, start the action again: set the NVRAM action p7770 = 1 or 2 once more.
Reading the message value
- The fault value is stored in r0949 and is interpreted hexadecimal: the value has the structure yyxx hex, where yy is the fault cause and xx the application ID.
- yy = 1: The action p7770 = 1 is not supported by this version if Drive Control Chart (DCC) is activated for the drive object concerned.
- yy = 2: The data length of the specified application is not the same in the NVRAM and the backup.
- yy = 3: The data checksum in p7774 is not correct.
- yy = 4: No data available to load.
Parameters the manual names
- p7770 — NVRAM action: the action (value 1 or 2) whose execution on the NVRAM data failed; restarting it is what the remedy means by
start the action again
. - r0949 — fault value: read the cause of the failed action here and interpret the value hexadecimal to separate the fault cause (yy) from the application ID (xx).
Acknowledging and restarting
The drive expects this fault to be acknowledged immediately; the fault itself triggers no automatic drive reaction. Once the cause has been remedied, acknowledge the fault and, if necessary, start the NVRAM action (p7770 = 1 or 2) again.
What differs between the drive families
Straight from the manuals' own fields — F03000 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | NONE | IMMEDIATELY | Hardware/software error (1) | Control Unit (CU) | SINAMICS G130, G150 List Manual · p. 1511 |
| S120, S150 | NONE | IMMEDIATELY | Hardware/software error (1) | Control Unit (CU) | SINAMICS S120, S150 List Manual · p. 2737 |
| G120 | — | — | Hardware/software error (1) | — | SINAMICS G120 · p. 866 |
| G120XA | — | IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1115 |
The drives this code lives on
F03000 is described for G120, G120XA, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F03000 mean on a SINAMICS drive?
It means that a fault occurred while an NVRAM action (p7770 = 1 or 2) was being executed. The fault value in r0949, read hexadecimal, tells you which of the four causes applies.
How do I clear fault F03000?
Read r0949: yy = 1 means the action p7770 = 1 is not supported with DCC activated, yy = 2 means the data length differs between NVRAM and backup, yy = 3 means the checksum in p7774 is incorrect, and yy = 4 means no data is available to load. Remedy the cause shown and start the action again if necessary.
Does F03000 stop the drive, and how is it acknowledged?
The fault triggers no automatic drive reaction, but the manuals classify it as one that must be acknowledged immediately. After remedying the cause, acknowledge the fault and, if required, restart the NVRAM action.
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 F03xxx group · SINAMICS manuals · Siemens manuals