What it means
F30684 belongs to the SI Motion P2 messages and concerns the function Safely Limited Position (SLP). The drive checks that the upper limit value parameter p9334 does not hold a smaller value than the lower limit value parameter p9335; if it does, the two limit values are interchanged and the drive raises this fault. The manual notes explicitly that This fault does not result in a safety stop response.
The drive still trips on the fault and stays stopped until the limit values have been corrected and the fault has been acknowledged.
Why it appears
- For the function Safely Limited Position (SLP), a lower value is stored in p9334 (upper limit values) than in p9335 (lower limit values) — the two limit values are interchanged.
What to check
- Read the fault value in r0949, interpreted as a decimal number, to see whether the SLP1 limit values (value 1) or the SLP2 limit values (value 2) are interchanged.
- Correct the lower and upper limit values in p9335 and p9334 so that the upper limit value in p9334 is no longer smaller than the lower limit value in p9335.
- Carry out a POWER ON (switch off/on) to acknowledge the fault.
Reading the message value
- The drive stores the fault value in r0949; interpret it as a decimal number.
- 1 — Limit values SLP1 interchanged.
- 2 — Limit values SLP2 interchanged.
Parameters the manual names
- p9334 — SI Motion SLP upper limit values (Motor Module): the upper limit values that must be corrected so that they no longer sit below p9335.
- p9335 — SI Motion SLP lower limit values (Motor Module): the lower limit values; correct them together with p9334.
- r0949 — fault value: read here, interpreted as a decimal number, to determine whether the SLP1 (1) or the SLP2 (2) limit values are interchanged.
Acknowledging and restarting
Correct p9334 and p9335 first, then acknowledge the fault with a POWER ON (switch the drive off and on again). No safety-related reset is involved, because this fault does not produce a safety stop response.
The same on every family
Every manual that describes F30684 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | OFF2 | IMMEDIATELY (POWER ON) | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1690 |
| S120, S150 | OFF2 | IMMEDIATELY (POWER ON) | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS S120, S150 List Manual · p. 2995 |
The drives this code lives on
F30684 is described for G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F30684 mean on a SINAMICS drive?
For the Safely Limited Position (SLP) function, the limit values are interchanged: parameter p9334 (upper limit values) holds a lower value than parameter p9335 (lower limit values).
How do I clear fault F30684?
Correct the lower and upper limit values in p9335 and p9334, then carry out a POWER ON (switch off/on) to acknowledge the fault.
Does F30684 trigger a safety stop?
No. The manual states that this fault does not result in a safety stop response, although the drive trips and must be acknowledged with a POWER ON before it restarts.
How can I see which SLP limit pair is interchanged?
Read the fault value in r0949 as a decimal number: 1 means the SLP1 limit values are interchanged, 2 means the SLP2 limit values are interchanged.
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