What it means
A30073 reports that actual value/setpoint preprocessing is no longer synchronous: the communication with the power unit module has fallen out of step with the current control cycle. Depending on the drive configuration, the drive can also output the same condition without any reaction.
Why it appears
- The communication to the power unit module is no longer synchronized with the current control cycle.
What to check
- Wait until synchronization between the drive and the power unit module has been re-established. The alarm then goes back on its own.
Acknowledging and restarting
No acknowledgement is required for this alarm. It clears itself as soon as the communication with the power unit module is synchronous with the current control cycle again. When the drive is configured to output the condition without any reaction, no acknowledgement is due in that case either.
The same on every family
Every manual that describes A30073 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Internal (DRIVE-CLiQ) communication error (12) | Power Module | SINAMICS S120, S150 List Manual · p. 2964 |
| G130, G150 | NONE | NONE | Internal (DRIVE-CLiQ) communication error (12) | Power Module | SINAMICS G130, G150 List Manual · p. 1671 |
The drives this code lives on
A30073 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 SINAMICS alarm A30073 mean?
It reports that the actual value/setpoint preprocessing is no longer synchronous: the communication with the power unit module is out of step with the current control cycle.
How do I acknowledge or reset A30073?
No acknowledgement is needed. Wait until synchronization with the power unit module is re-established, and the alarm goes back by itself.
Does A30073 stop the drive?
No stop reaction is triggered by this alarm. Depending on the drive configuration, the condition can even be output without any reaction.
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 A30xxx group · SINAMICS manuals · Siemens manuals