What it means
The drive expects connections to two PROFINET controllers at the same time, but only the connection to one PROFINET controller is present. Two-controller operation is expected because system redundancy is activated or because the PROFINET function "Shared Device" is activated (p8929 = 2). In the description for S120 and S150 the manual additionally names the case in which the controller is in the STOP state; in the description for G130 and G150 the "Shared Device" function is named explicitly as the reason why two connections are expected.
Why it appears
- Connections to two PROFINET controllers are expected, but only the connection to one PROFINET controller is present or available.
- System redundancy is activated.
- The PROFINET function "Shared Device" is activated with p8929 = 2 (listed in the description for G130 and G150).
- The controller is in the STOP state (listed in the description for S120 and S150).
What to check
- Check the PROFINET controller — whether the second expected connection is present at all and whether the controller is in the STOP state.
- Check the configuration of the PROFINET controllers as well as the p8929 setting (PN remote controller number); p8929 = 2 belongs to the activated "Shared Device" function, so the setting and the actual two-controller configuration must match.
Parameters the manual names
- p8929 — PN remote controller number: the setting to review for this alarm; the manual lists p8929 = 2 together with the activated PROFINET function "Shared Device".
Acknowledging and restarting
This alarm does not have to be acknowledged and there is no separate reset step. Restore the second PROFINET connection or correct the configuration and the p8929 setting as described above; the alarm then no longer applies.
The same on every family
Every manual that describes A01982 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. 2723 |
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1497 |
The drives this code lives on
A01982 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 A01982 on a SINAMICS drive mean?
The drive expects connections to two PROFINET controllers but only the connection to one is present — typically because system redundancy or the PROFINET function "Shared Device" (p8929 = 2) is activated. On S120/S150 the alarm also appears while the controller is in the STOP state.
How do I clear A01982?
Check the PROFINET controller and the configuration of both controllers, including the p8929 setting (PN remote controller number). Once the second controller connection is present again, the situation is resolved.
Does A01982 need to be acknowledged?
No. The alarm requires no acknowledgement, and apart from correcting the configuration there is no separate reset step.
What is p8929 used for with A01982?
p8929 is the PN remote controller number. For this alarm it matters because p8929 = 2 activates the PROFINET function "Shared Device", which makes the drive expect two controller connections.
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 A01xxx group · SINAMICS manuals · Siemens manuals