What it means
The drive raises this alarm when the parameter assignment on the visible partition of the memory card has changed. The backup copy on the non-visible partition of the memory card does not follow that change on its own: a POWER ON or a hardware reset (p0972) of the Control Unit (CU) is necessary to bring the copy up to date, and the drive raises this alarm to ask for one of the two steps. Depending on how the drive is configured, the same condition can also be output with no reaction (N).
Why it appears
- The parameter assignment on the visible partition of the memory card has changed.
- The backup copy on the non-visible partition of the memory card only matches the parameters again after a POWER ON or a hardware reset (p0972) of the Control Unit has been carried out.
It is possible that a new POWER ON is requested via this alarm
, for example after saving with p0971 = 1.
What to check
- Carry out a POWER ON for the Control Unit: switch it off and then switch it on again.
- Alternatively, carry out a hardware reset — press the RESET button or execute the drive unit reset p0972.
Parameters the manual names
- p0972 (Drive unit reset / Drv_unit reset): performs the hardware reset of the Control Unit that updates the backup copy on the non-visible partition of the memory card.
- p0971 (Save drive object parameters / Drv_obj par save): saving with p0971 = 1 is the manual's example of an action after which the drive can request a new POWER ON through this alarm.
Acknowledging and restarting
This alarm requires no acknowledgment. It is resolved by the POWER ON or the hardware reset itself: switch the Control Unit off and on again, or reset it with the RESET button or via p0972, so that the backup copy on the non-visible partition of the memory card is updated.
What differs between the drive families
Straight from the manuals' own fields — A01073 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | NONE | NONE | General drive fault (19) | Control Unit (CU) | SINAMICS G130, G150 List Manual · p. 1388 |
| S120, S150 | NONE | NONE | General drive fault (19) | Control Unit (CU) | SINAMICS S120, S150 List Manual · p. 2575 |
| G120 | NONE | NONE | General drive fault (19) | — | SINAMICS G120 · p. 830 |
| G120XA | NONE | NONE | — | — | SINAMICS G120XA PN converter · p. 1107 |
The drives this code lives on
A01073 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 A01073 mean on a SINAMICS drive?
The parameter assignment on the visible partition of the memory card has changed, and the backup copy on the non-visible partition is not yet up to date. The drive is asking for a POWER ON or a hardware reset (p0972) of the Control Unit.
How do I clear alarm A01073?
Switch the Control Unit off and on again, or carry out a hardware reset with the RESET button or via p0972. No acknowledgment is required.
Why does A01073 appear after saving parameters with p0971 = 1?
After a save with p0971 = 1 the drive can request a new POWER ON through this alarm, because the backup copy on the memory card has to be brought up to date.
Does alarm A01073 stop the drive?
No. The alarm triggers no reaction of the drive; it only asks you to power the Control Unit off and on or to reset it. Depending on the drive's configuration, the condition can also be output with no reaction at all.
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