What it means
F07425 is raised by the velocity monitoring of the APC function (Advanced Positioning Control): the drive has measured a speed/velocity that remained above the limit value set in p3778 for a longer time than the monitoring time set in p3779 permits, and it therefore faults the drive.
Why it appears
- The measured speed/velocity exceeded the limit value set in p3778 for a time longer than the monitoring time set in p3779.
What to check
- Check the measured value — the speed/velocity signal the APC function is evaluating.
- Check the limit value (p3778) and the monitoring time (p3779) and correct them if they are not set as intended.
Parameters the manual names
- p3778 — APC velocity limit (APC v_limit): the speed/velocity limit whose exceedance this fault monitors; check its setting as part of the remedy.
- p3779 — APC velocity limit monitoring time (APC v_limit t): sets how long the velocity may stay above p3778 before F07425 is raised; check its setting as part of the remedy.
Acknowledging and restarting
The drive executes an OFF1 and must be acknowledged before it will start again; the acknowledgment is due immediately, so F07425 can be cleared as soon as it appears. Bring the measured velocity back within the p3778 limit — or correct p3778/p3779 if they are set wrongly — acknowledge the fault, then restart the drive.
The same on every family
Every manual that describes F07425 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF1 | IMMEDIATELY | Application/technological function faulted (17) | None | SINAMICS S120, S150 List Manual · p. 2811 |
The drives this code lives on
F07425 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS fault F07425 mean?
It means the velocity monitoring of the APC (Advanced Positioning Control) function has tripped: the measured speed/velocity stayed above the limit in p3778 for longer than the monitoring time in p3779.
How do I clear fault F07425?
The drive stops with an OFF1 and the fault must be acknowledged immediately. Check the measured value and the settings p3778/p3779, acknowledge the fault, and restart the drive.
Which parameters belong to F07425?
p3778 (APC velocity limit) and p3779 (APC velocity limit monitoring time). The fault appears when the velocity exceeds p3778 for longer than p3779 allows.
What is APC in fault F07425?
APC stands for Advanced Positioning Control — the function whose velocity monitoring raises F07425.
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 F07xxx group · SINAMICS manuals · Siemens manuals