What it means
F30802 is raised when the power unit registers a time slice overflow. The manuals that describe this code — for the G120, G120XA, G130, G150, S120 and S150 — give the same single cause and the same three remedial steps, so the guidance below applies to every family in the same way. The fault value stored in r0949, read as a decimal number, identifies the time slice number (xx) behind the message.
Why it appears
- A time slice overflow has occurred in the power unit.
- The manuals name no further cause for this fault.
What to check
- Carry out a POWER ON for all components — switch them off and then on again.
- Upgrade the firmware to a later version.
- If the fault occurs again after these steps, contact Technical Support.
Reading the message value
- The drive stores the fault value in r0949; interpret it as a decimal number.
- Decoding exactly as the manual prints it: xx — time slice number, i.e. the value tells you which time slice overflowed.
- The manuals that print a message value use the placeholder %1; that placeholder carries this same fault value.
Parameters the manual names
- r0949 — fault value: read it here, interpreted as a decimal number, to obtain the time slice number belonging to F30802.
Acknowledging and restarting
Acknowledge the fault directly at the drive; the acknowledgment is made immediately, and the drive only accepts a new start once the fault has been cleared. If F30802 reoccurs, first carry out the POWER ON (switch-off/switch-on) of all components described above before attempting a further start.
What differs between the drive families
Straight from the manuals' own fields — F30802 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G120XA | OFF2 OFF2 (OFF1, OFF3) | IMMEDIATELY IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1165 |
| S120, S150 | OFF2 | IMMEDIATELY | Hardware/software error (1) | Power Module | SINAMICS S120, S150 List Manual · p. 3014 |
| G130, G150 | OFF2 | IMMEDIATELY | Hardware/software error (1) | Power Module | SINAMICS G130, G150 List Manual · p. 1705 |
| G120 | OFF2 | IMMEDIATELY | Hardware/software error (1) | — | SINAMICS G120 · p. 931 |
The drives this code lives on
F30802 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 F30802 mean on a SINAMICS drive?
It means the power unit has registered a time slice overflow. The fault value in r0949, read as a decimal, gives the number of the affected time slice.
How do I clear F30802?
Switch all components off and on again (POWER ON) and, if the fault returns, upgrade the firmware to a later version. If it still occurs, contact Technical Support.
Where can I see which time slice triggered F30802?
In r0949 — the drive stores the fault value there, and interpreted as a decimal number the value is the time slice number (xx).
Is F30802 handled differently on the different SINAMICS families?
No. The manuals for G120, G120XA, G130, G150, S120 and S150 describe the same cause and the same three remedial steps for this code.
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 F30xxx group · SINAMICS manuals · Siemens manuals