What it means
The drive displays A01980 with the alarm text PN: cyclic connection interrupted
. It is raised when the cyclic connection to the PROFINET controller is interrupted. The manuals describe this alarm identically for the G130/G150 and the S120/S150, and both refer to r8936, in which the drive shows the status of the cyclic connection.
Why it appears
- The cyclic connection between the drive and its PROFINET controller has been interrupted.
What to check
- Read r8936 (cyclic connection status) to see the current state of the cyclic connection.
- Re-establish the PROFINET connection between the drive and the PROFINET controller.
- Activate the PROFINET controller in the cyclic mode again.
Parameters the manual names
- r8936 — cyclic connection status: the alarm entry itself refers to this parameter; read it to check the current status of the cyclic connection while A01980 is active.
What differs between the drive families
Straight from the manuals' own fields — A01980 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Communication error to the higher-level control system (9) | None | SINAMICS S120, S150 List Manual · p. 2722 |
| G130, G150 | NONE | NONE | Communication error to the higher-level control system (9) | None | SINAMICS G130, G150 List Manual · p. 1497 |
The drives this code lives on
A01980 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 A01980 mean on a SINAMICS drive?
It is the alarm "PN: cyclic connection interrupted": the cyclic connection between the drive and the PROFINET controller is down. The manuals describe it identically for G130, G150, S120 and S150.
Why does my drive report A01980?
The only cause the manuals give is that the cyclic connection to the PROFINET controller has been interrupted. No further causes are listed for this alarm.
How do I clear alarm A01980?
Re-establish the PROFINET connection and activate the PROFINET controller in the cyclic mode. You can follow the state of the connection in r8936 (cyclic connection status).
Which parameter shows the PN cyclic connection status?
r8936. The alarm entry itself refers to this parameter, in which the drive displays the status of the cyclic connection.
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