What it means
A07428 signals that the technology controller has a parameterizing error. The error the drive detects here is an inverted output limit: the upper output limit in p2291 is set lower than the lower output limit in p2292. Depending on the drive's configuration, the same condition can also be output with no reaction (N).
Why it appears
- The technology controller parameterization is inconsistent: the upper output limit in p2291 is set lower than the lower output limit in p2292 (alarm value 1 in r2124, interpreted as a decimal number).
What to check
- Read the alarm value in r2124 and interpret it as a decimal number to confirm which parameterizing error the technology controller has detected.
- For alarm value 1, set the output limit in p2291 higher than in p2292, so the upper output limit again lies above the lower one.
Reading the message value
- The alarm value is stored in r2124; interpret the value as a decimal number.
- 1: The upper output limit in p2291 is set lower than the lower output limit in p2292.
Parameters the manual names
- r2124 — alarm value; read it here as a decimal number to see which parameterizing error the technology controller is reporting.
- p2291 — technology controller maximum limiting; for this alarm it is the upper output limit that must be raised above p2292.
- p2292 — technology controller minimum limiting; for this alarm it is the lower output limit that must lie below p2291.
Acknowledging and restarting
No acknowledgement is required, and the drive takes no automatic reaction to this alarm. The reported condition exists only while the output limit in p2291 is set lower than in p2292, so correcting the limits ends the parameterizing error.
What differs between the drive families
Straight from the manuals' own fields — A07428 is not described identically everywhere.
| 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. 2812 |
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1551 |
| G120 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | — | SINAMICS G120 · p. 879 |
| G120XA | NONE | NONE | — | — | SINAMICS G120XA PN converter · p. 1130 |
The drives this code lives on
A07428 is described for G120, G120XA, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A07428 mean in SINAMICS?
It reports a parameterizing error in the technology controller: the upper output limit in p2291 is set lower than the lower output limit in p2292.
How do I fix A07428?
Set the output limit in p2291 higher than in p2292. No acknowledgement is needed and the drive takes no automatic reaction to the alarm.
Where is the alarm value for A07428 stored?
In r2124, interpreted as a decimal number. A value of 1 means the upper output limit in p2291 is below the lower output limit in p2292.
Does A07428 trip the drive?
No. The message requires no acknowledgement and the drive takes no automatic reaction; it only points to the inverted output limiting in the technology controller.
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 A07xxx group · SINAMICS manuals · Siemens manuals