What it means
A30810 (Power unit: Watchdog timer) is an alarm that the drive raises when booting and establishes that the previous reset was caused by an overflow of the SAC watchdog timer. It therefore reports the reason for a reset that has already taken place. The manuals list no message value for it. Depending on how the drive is configured, the same condition can also be issued as a fault (F).
Why it appears
- When booting, the drive detected that the cause of the previous reset was an overflow of the SAC watchdog timer.
What to check
- Carry out a POWER ON (switch-off/switch-on) for all components.
- If the alarm reappears, upgrade the firmware to a later version.
- If it still appears, contact Technical Support.
Acknowledging and restarting
As an alarm, A30810 needs no acknowledgement; the POWER ON described in the checks is what clears the condition it reports. If the drive's configuration makes the same condition appear as a fault (F) instead, the manual prints Reaction upon F: NONE (OFF2)
with acknowledgement IMMEDIATELY — the fault can be acknowledged as soon as its cause has been remedied, and the drive can then be restarted.
What differs between the drive families
Straight from the manuals' own fields — A30810 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Hardware/software error (1) | Power Module | SINAMICS S120, S150 List Manual · p. 3015 |
| G130, G150 | NONE | NONE | Hardware/software error (1) | Power Module | SINAMICS G130, G150 List Manual · p. 1706 |
| G120 | NONE | NONE | Hardware/software error (1) | — | SINAMICS G120 · p. 932 |
| G120XA | NONE | NONE | — | — | SINAMICS G120XA PN converter · p. 1166 |
The drives this code lives on
A30810 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 SINAMICS alarm A30810 mean?
It is the alarm "Power unit: Watchdog timer": when booting, the drive detected that the cause of the previous reset was an overflow of the SAC watchdog timer.
How do I clear A30810?
Carry out a POWER ON (switch-off/switch-on) for all components. If the alarm reappears, upgrade the firmware to a later version, and if it still appears, contact Technical Support.
Does A30810 have to be acknowledged before the drive restarts?
No — as an alarm it needs no acknowledgement. If the drive's configuration issues the same condition as a fault instead, the acknowledgement is IMMEDIATELY.
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