What it means
F30024 comes from the thermal model that monitors the power unit. The drive raises it when The temperature difference between the heat sink and chip has exceeded the permissible limit value.
The manuals describe the fault with the same wording for G120, G120XA, G130, G150, S120 and S150, and every entry cross-references r0037, so the temperatures recorded there are the natural place to watch while you investigate. The fault switches the drive off (the motor coasts down) and must be acknowledged before the drive will start again.
Why it appears
- The permissible load duty cycle was not maintained — the power unit has been worked harder over time than its duty cycle allows.
- Cooling is insufficient, up to and including fan failure.
- The drive is overloaded.
- The ambient temperature is too high.
- The pulse frequency is set too high.
What to check
- Adapt the load duty cycle so the drive stays within the range that is permissible for it.
- Check whether the fan is running, then check the fan elements.
- Check whether the ambient temperature is in the permissible range.
- Check the motor load.
- Reduce the pulse frequency if it is set higher than the rated pulse frequency.
- If DC braking is active, reduce the braking current (p1232).
Parameters the manual names
- r0037 (CU temperature / power unit temperatures) — the manual cross-references this parameter for F30024; read it to follow the drive's temperatures while you work through the checks.
- p1232 (DC braking braking current, DCBRK I_brake) — if DC braking is active, reduce the braking current set here.
Acknowledging and restarting
The fault switches the drive off and the motor coasts down; the drive will not start again until the fault has been acknowledged. Once the cause is removed, acknowledge the fault immediately and restart the drive.
What differs between the drive families
Straight from the manuals' own fields — F30024 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | Power Module | SINAMICS S120, S150 List Manual · p. 2946 |
| G130, G150 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | Power Module | SINAMICS G130, G150 List Manual · p. 1656 |
| S120, S150 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | Power Module | SINAMICS S120, S150 List Manual · p. 2946 |
| G120 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | — | SINAMICS G120 · p. 909 |
| G130, G150 | OFF2 | IMMEDIATELY | Power electronics faulted (5) | Power Module | SINAMICS G130, G150 List Manual · p. 1657 |
| G120XA | OFF2 | IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1156 |
The drives this code lives on
F30024 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 SINAMICS fault F30024 mean?
The power unit's thermal model has found that the temperature difference between heat sink and chip exceeded the permissible limit value. The drive switches off and the fault must be acknowledged before a restart.
Why does my drive report F30024?
The manual lists five causes: the permissible load duty cycle was not maintained, insufficient cooling or fan failure, overload, ambient temperature too high, and pulse frequency too high.
How do I clear F30024 on a SINAMICS drive?
Adapt the load duty cycle, check the fan and its elements, check the ambient temperature, check the motor load, and reduce the pulse frequency if it is above the rated value. If DC braking is active, also reduce the braking current in p1232, then acknowledge the fault immediately.
Which parameter helps when F30024 appears?
r0037 — the manual cross-references it for this fault as power unit temperatures; watch it while you check cooling and load.
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