What it means
F07503 is an EPOS fault that signals a STOP cam was approached in the wrong traversing direction: the STOP cam MINUS while traversing positively, or the STOP cam PLUS while traversing negatively. The manuals for the covered converter families describe this fault identically.
Why it appears
- The STOP cam MINUS was approached while traversing in the positive direction.
- The STOP cam PLUS was approached while traversing in the negative direction.
What to check
- Check the wiring of the STOP cam; the manual names the BI p2569 (STOP cam MINUS) and the BI p2570 (STOP cam PLUS) for this.
- Check the traversing direction with which the STOP cam is approached.
Parameters the manual names
- p2569 — BI of the EPOS STOP cam MINUS, named by the remedy for checking the STOP cam wiring.
- p2570 — BI of the EPOS STOP cam PLUS, likewise named for the STOP cam wiring check.
Acknowledging and restarting
Remove the cause first — the STOP cam wiring or the traversing direction used to approach the cam — and then acknowledge the fault immediately. The fault does not switch the drive off by itself; once acknowledged, the drive can be given a new command to approach the STOP cam in the correct traversing direction.
What differs between the drive families
Straight from the manuals' own fields — F07503 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Servo: NONE (OFF1, OFF2, OFF3) Vector: NONE | IMMEDIATELY | Application/technological function faulted (17) | None | SINAMICS S120, S150 List Manual · p. 2833 |
| G130, G150 | NONE | IMMEDIATELY | Application/technological function faulted (17) | None | SINAMICS G130, G150 List Manual · p. 1570 |
The drives this code lives on
F07503 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 F07503 mean on a SINAMICS drive?
It is an EPOS fault: the STOP cam MINUS was approached in the positive traversing direction, or the STOP cam PLUS in the negative traversing direction.
How do I fix fault F07503?
Check the wiring of the STOP cam at the BI p2569 and p2570 and check the traversing direction used to approach the STOP cam, then acknowledge the fault immediately.
Which parameters belong to fault F07503?
p2569 for the EPOS STOP cam MINUS and p2570 for the EPOS STOP cam PLUS — the two BI named in the remedy for the wiring check.
Does fault F07503 stop the drive?
No automatic stop response is assigned to this fault, but it must be acknowledged immediately once its cause has been removed.
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