What it means
F07485 — “EPOS: Fixed stop not reached” — is reported by the EPOS function. In a traversing block whose task is FIXED STOP, the axis is to run against a fixed stop, and the drive monitors whether that stop is actually detected. The drive raises this fault when the block reached its programmed end position without the drive detecting a fixed stop. Depending on the drive configuration, the same condition can also be issued as an alarm (A).
Why it appears
- A traversing block with the task FIXED STOP was running: the axis was to press against a fixed stop, but the block reached its end position without the drive detecting the stop.
What to check
- Check the traversing block and locate the target position further into the workpiece, so the end position is not reached before the axis presses into the workpiece.
- Check the “fixed stop reached” control signal, interconnected at p2637, so the drive reliably reports when the fixed stop has been reached.
- If the fixed stop is still not detected, reduce the maximum following error window in p2634; a smaller window lets the drive detect the fixed stop.
Parameters the manual names
- p2637 — BI: EPOS fixed stop reached / Fixed stop reached: the “fixed stop reached” control signal; check this interconnection when the drive reports that no fixed stop was detected.
- p2634 — EPOS fixed stop maximum following error / Following err max: the maximum following error window for the fixed stop; reduce it if required so that the fixed stop is detected.
Acknowledging and restarting
The drive stops with the reaction assigned to this code, and the fault must be acknowledged before the traversing block can be started again; acknowledge immediately, as the manual requires. If the condition is configured as an alarm (A), no reaction occurs and no acknowledgement is needed. Once acknowledged, the FIXED STOP traversing block can be started again.
What differs between the drive families
Straight from the manuals' own fields — F07485 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF1 (OFF2, OFF3) | — | Application/technological function faulted (17) | None | SINAMICS S120, S150 List Manual · p. 2827 |
| G130, G150 | OFF1 (OFF2, OFF3) | IMMEDIATELY | Application/technological function faulted (17) | None | SINAMICS G130, G150 List Manual · p. 1564 |
The drives this code lives on
F07485 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 SINAMICS fault F07485 mean?
In a traversing block with the task FIXED STOP the drive reached the programmed end position without detecting a fixed stop.
How do I fix fault F07485?
Check the traversing block and move the target position further into the workpiece, check the “fixed stop reached” signal at p2637, and if required reduce the maximum following error window in p2634. Then acknowledge the fault and restart the traversing block.
Which parameters are relevant for F07485?
p2637 is the “fixed stop reached” control signal, and p2634 is the maximum following error window for the fixed stop.
Can F07485 also appear as an alarm?
Yes — depending on the drive configuration, the same condition can also be issued as an alarm (A) instead of a fault.
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