What it means
The drive issues A07999 when motor data identification is to be activated but cannot be selected: closed-loop control is still enabled on a SERVO drive object type. Before motor data identification can be selected, pulses must be suppressed for all SERVO drive objects. As long as any SERVO drive object keeps its closed-loop control enabled, the identification stays blocked and the alarm is present.
Why it appears
- Closed-loop control is enabled on a SERVO drive object type — to select motor data identification, pulses must be suppressed for all SERVO drive objects.
What to check
- Withdraw the pulse enable on all drives.
- Re-activate the motor data identification.
Reading the message value
- The drive stores the alarm value in r2124; it is to be interpreted as a decimal number.
- The value identifies the drive object with enabled closed-loop control.
Parameters the manual names
- r2124 — alarm value: read it as a decimal number to identify the drive object whose enabled closed-loop control is blocking the motor data identification.
The same on every family
Every manual that describes A07999 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. 2916 |
The drives this code lives on
A07999 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
Why can I not activate motor data identification on SINAMICS S120 or S150?
The drive reports A07999 because closed-loop control is still enabled on a SERVO drive object type. Motor data identification can only be selected when pulses are suppressed for all SERVO drive objects.
How do I clear alarm A07999?
Withdraw the pulse enable on all drives and then re-activate the motor data identification.
What does the r2124 alarm value of A07999 tell me?
Interpreted as a decimal number, it identifies the drive object on which closed-loop control is still enabled.
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