What it means
A02011 comes from the function generator. This function works with drives that are selected for connection to it, and before it is started, every one of these drives must be at standstill. The drive checks this against the standstill detection velocity threshold set in p1226: the alarm is present while the speed actual value of a drive selected for connection is greater than this threshold. It is an alarm, not a fault — the drive takes no automatic action because of it, and no message value is supplied with it.
Why it appears
- One of the drives selected for connection to the function generator is still turning: its speed actual value is greater than the standstill detection threshold set in p1226.
What to check
- Determine which of the drives selected for connection still has a speed actual value above the p1226 standstill threshold.
- Set the relevant drives to zero speed before starting the function generator, so that no drive selected for connection is still above the p1226 standstill threshold.
- Restart the function generator.
Parameters the manual names
- p1226 — standstill detection velocity threshold: the speed below which a drive counts as being at standstill. For this code it is the reference value the speed actual value of the connected drives is compared against; the alarm remains active as long as one of these drives turns faster than p1226.
Acknowledging and restarting
The alarm is reset in two steps: remove the cause of the alarm, then restart the function generator. No acknowledgement is required — once the connected drives are at zero speed and the function generator is started again, the alarm clears.
The same on every family
Every manual that describes A02011 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. 2726 |
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1501 |
The drives this code lives on
A02011 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 A02011 mean on a SINAMICS drive?
It is a function generator alarm: a drive selected for connection is not at standstill, because its speed actual value is greater than the standstill detection threshold set in p1226.
How do I clear alarm A02011?
Remove the cause and restart the function generator: set the relevant drives to zero speed and start the function generator again. No acknowledgement is required.
Which parameter belongs to A02011?
p1226, the standstill detection velocity threshold. The alarm stays active while the speed actual value of a drive selected for connection is above this threshold.
Why does the function generator not start?
Because the drives selected for connection must be at zero speed first; A02011 tells you that at least one of them is still turning above the p1226 standstill threshold.
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