What it means
Alarm A02075, titled «Trace: Pretrigger time too long», comes from the trace function. The manuals state its meaning in one sentence: The selected pretrigger time must be shorter than the trace time.
In other words, the pretrigger time configured for the trace does not fit into the trace, and the drive reports this setting inconsistency as an alarm. The trace settings concerned are p4721 (Trace recording time) and p4722 (Trace trigger delay), which the manuals name for this alarm. The manuals for the G120 and for the G130, G150, S120 and S150 describe the alarm with the same cause and the same remedy, so the guidance below applies to every family listed.
Why it appears
- The selected pretrigger time is not shorter than the trace time, so the trace recording time (p4721) cannot accommodate the pretrigger that was set.
What to check
- Check the pretrigger time setting of the trace, together with the trace time parameters the manuals name for this alarm: p4721 (Trace recording time) and p4722 (Trace trigger delay).
- Compare the two: the pretrigger time must be shorter than the trace recording time p4721.
- Change the pretrigger time setting if necessary so that it is shorter than the trace time.
Parameters the manual names
- p4721 — Trace recording time (Trace record_time): the trace time; the pretrigger time selected for the trace must be shorter than this recording time.
- p4722 — Trace trigger delay (Trace trig_delay): the trigger delay setting of the trace, named by the manuals alongside p4721 for this alarm; review it when checking the trace time settings.
Acknowledging and restarting
The drive takes no automatic action for this alarm and no acknowledgement is required. Correcting the pretrigger time setting so that it is shorter than the trace time resolves the condition.
What differs between the drive families
Straight from the manuals' own fields — A02075 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1507 |
| S120, S150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS S120, S150 List Manual · p. 2732 |
| G120 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | — | SINAMICS G120 · p. 864 |
The drives this code lives on
A02075 is described for G120, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A02075 in SINAMICS mean?
It means that the pretrigger time selected for the trace is not shorter than the trace time. The trace function reports this setting inconsistency as alarm A02075, 'Trace: Pretrigger time too long'.
How do I fix A02075?
Check the pretrigger time setting and change it if necessary so that it is shorter than the trace recording time. The manuals point to p4721 (Trace recording time) and p4722 (Trace trigger delay) for this check.
Which parameters belong to alarm A02075?
p4721, the trace recording time, and p4722, the trace trigger delay. The pretrigger time must be shorter than the trace recording time in p4721.
Does A02075 stop the drive or need an acknowledgement?
No. The drive takes no automatic action for this alarm and no acknowledgement is required; correcting the trace setting resolves it.
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 A02xxx group · SINAMICS manuals · Siemens manuals