What it means
F30035 means the temperature at the air intake of the power unit has exceeded the permissible temperature limit; for air-cooled power units this limit is 55 °C. The manuals for S120, S150, G130, G150, G120 and G120XA describe this fault identically; for the G115D and G120C the code is listed without further detail. The drive responds with a switch-off (OFF1, alternatively OFF2) and cannot restart until the fault has been acknowledged.
Why it appears
- The air intake in the power unit has exceeded the permissible temperature limit — for air-cooled power units, 55 °C.
- Ambient temperature too high.
- Insufficient cooling, fan failure.
What to check
- Check whether the fan is running.
- Check the fan elements.
- Check whether the ambient temperature is in the permissible range.
Reading the message value
- The drive stores the measured intake air temperature as the fault value in r0949.
- Interpret the value of r0949 as a decimal number: the reading is the temperature in 0.01 °C.
Parameters the manual names
- r0949 — fault value: read here how hot the intake air was when the fault tripped; interpret the decimal value as a temperature in 0.01 °C.
Acknowledging and restarting
This fault is not acknowledged at any arbitrary moment. The manual's notice applies: This fault can only be acknowledged after the alarm threshold for alarm A05002 has been undershot.
Work through the checks above, let the intake air cool down until the A05002 alarm threshold is undershot, and only then acknowledge the fault.
What differs between the drive families
Straight from the manuals' own fields — F30035 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF1 (OFF2) | — | Power electronics faulted (5) | Power Module | SINAMICS S120, S150 List Manual · p. 2950 |
| G130, G150 | OFF1 (OFF2) | IMMEDIATELY | Power electronics faulted (5) | Power Module | SINAMICS G130, G150 List Manual · p. 1661 |
| G120 | OFF1 (OFF2) | — | Power electronics faulted (5) | — | SINAMICS G120 · p. 913 |
| G120XA | OFF1 (OFF2) | IMMEDIATELY | — | — | SINAMICS G120XA PN converter · p. 1159 |
| G115D | — | — | — | — | SINAMICS G115D distributed drive · p. 396 |
| G120C | — | — | — | — | SINAMICS G120C Converters · p. 387 |
The drives this code lives on
F30035 is described for G115D, G120, G120C, G120XA, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F30035 mean on a SINAMICS drive?
The power unit reports that the temperature at its air intake exceeded the permissible limit, which for air-cooled power units is 55 °C. The drive switches off (OFF1, alternatively OFF2) until the fault is cleared.
Why can I not acknowledge F30035?
Because the manual states the fault can only be acknowledged after the alarm threshold for alarm A05002 has been undershot. Let the intake air cool down first, then acknowledge.
How do I fix fault F30035?
Check whether the fan is running, check the fan elements, and check whether the ambient temperature is in the permissible range. Once the temperature has dropped, acknowledge the fault.
What does the fault value of F30035 in r0949 show?
The intake air temperature. Interpret the decimal value of r0949 in units of 0.01 °C.
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