What it means
A02025 is an alarm raised by the function generator: the value set for its period is too short. The period in question is the one entered in p4821 (function generator period). The alarm carries no message value — it simply tells you that the period needs to be made longer.
Why it appears
- The period value set for the function generator (p4821) is too short.
What to check
- Check the period value that is set in p4821.
- Adapt the value so the function generator receives a sufficiently long period.
- Restart the function generator so the alarm is reset.
Parameters the manual names
- p4821 — function generator period (FG period duration): the value you check and adapt to remove this alarm.
Acknowledging and restarting
The alarm does not have to be acknowledged. It is reset by removing the cause and then restarting the function generator; once p4821 holds a suitable period and the generator has been restarted, the alarm clears itself.
The same on every family
Every manual that describes A02025 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS S120, S150 List Manual · p. 2727 |
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1502 |
The drives this code lives on
A02025 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 alarm A02025 mean?
It is a function generator alarm: the period that has been set for the function generator is too short. The relevant value is the period in p4821.
How do I clear alarm A02025?
Check and adapt the period in p4821, then restart the function generator. The alarm resets itself once the cause has been removed — no separate acknowledgment is needed.
Which parameter is behind A02025?
p4821, the function generator period (FG period duration). Adapting this value is the remedy the manual gives for this alarm.
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