What it means
SINAMICS raises F30067, titled Power unit: overtemperature, fault capacitor air discharge, when the air discharged from the DC link capacitor has exceeded the permissible limit. Together with the fault, the drive stores the temperature reached at the moment the limit was tripped in r0949, so you can read how hot the capacitor air actually was. The manual describes this code for the S120 and S150.
Why it appears
- The ambient temperature is too high.
- Insufficient cooling, for example a fan failure.
What to check
- Check whether the fan is running.
- Check the fan elements.
- Check whether the ambient temperature is within the permissible range.
Reading the message value
- The value stored for this fault is a temperature, not a bit pattern: it is the temperature when the limit value was reached.
- Read the fault value in r0949 and interpret the number as decimal; the manual states it in steps of 0.01 °C.
Parameters the manual names
- r0949 — read the fault value here as a decimal number; for F30067 it contains the capacitor air temperature at the moment the limit value was reached, in steps of 0.01 °C.
Acknowledging and restarting
The fault cannot be acknowledged while the capacitor air is still too hot. This fault can only be acknowledged after the limit value has been fallen below, and the corresponding hysteresis (5 K).
Remove the cause first — fan, cooling or ambient temperature — then let the temperature drop below the limit value by the 5 K hysteresis before acknowledging the fault and restarting the drive.
The same on every family
Every manual that describes F30067 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Overtemperature of the electronic components (6) | Power Module | SINAMICS S120, S150 List Manual · p. 2962 |
The drives this code lives on
F30067 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F30067 mean on a SINAMICS S120 or S150?
It means the air discharged from the DC link capacitor has exceeded the permissible temperature limit. The temperature reached at that moment is stored as the fault value in r0949.
How do I acknowledge F30067?
Only after the capacitor air temperature has fallen below the limit value by the 5 K hysteresis. Once the drive has cooled down that far, the fault can be acknowledged and the drive restarted.
What should I check when F30067 occurs?
Check whether the fan is running, check the fan elements, and check whether the ambient temperature is within the permissible range.
What is stored in r0949 for F30067?
Interpreted as a decimal number, the fault value is the temperature at which the limit was reached, stated in steps 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