What it means
C30799 is a safety message from the Safety Integrated (SI) Motion monitoring: the acceptance test mode is active. The drive reports it for as long as the SI Motion P2 acceptance test mode is running and withdraws it again automatically when the mode is exited. While the mode is active, the setpoint velocity limiting is deactivated — the SI Motion setpoint speed limit that is effectively applied can be read at r9733 — and the standard limit switches are deactivated during the acceptance test for the SLP function (Safely-Limited Position): for EPOS internal this happens directly, otherwise via r10234.
Why it appears
- The SI Motion P2 acceptance test mode is active on the drive.
- While the mode runs, the setpoint velocity limiting is deactivated; the SI Motion setpoint speed limit that is effectively active can be read at r9733.
- While the mode runs, the standard limit switches are deactivated during the acceptance test for the SLP (Safely-Limited Position) function — for EPOS internal this happens directly, otherwise via r10234.
What to check
- No remedial action is required — the manual states that a remedy is not necessary for this message.
- Exit the acceptance test mode; the message is then withdrawn automatically and needs no further attention.
Parameters the manual names
- r9733 (CO: SI Motion setpoint speed limit effective) — read it to see which setpoint speed limit is effectively active, because the setpoint velocity limiting is deactivated for as long as the acceptance test mode runs.
Acknowledging and restarting
The message is acknowledged immediately, and a POWER ON also clears it. In practice no acknowledgement step is needed: the drive withdraws the message automatically as soon as the acceptance test mode is exited.
What differs between the drive families
Straight from the manuals' own fields — C30799 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | IMMEDIATELY (POWER ON) | Safety monitoring channel has identified an error (10) | None | SINAMICS S120, S150 List Manual · p. 3013 |
| G130, G150 | NONE | IMMEDIATELY (POWER ON) | Safety monitoring channel has identified an error (10) | None | SINAMICS G130, G150 List Manual · p. 1704 |
| G120 | NONE | IMMEDIATELY (POWER ON) | Safety monitoring channel has identified an error (10) | — | SINAMICS G120 · p. 931 |
The drives this code lives on
C30799 is described for G120, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does C30799 mean on a SINAMICS drive?
It is a safety message from the Safety Integrated (SI) Motion monitoring stating that the acceptance test mode is active. While the mode runs, the setpoint velocity limiting is deactivated and the standard limit switches are deactivated for the SLP function.
Is C30799 a fault I have to repair?
No. The manual states that a remedy is not necessary — the message only reports that the SI Motion P2 acceptance test mode is running, and it is withdrawn automatically when the mode is exited.
How do I clear or acknowledge C30799?
Exit the acceptance test mode; the drive then withdraws the message automatically. The message is acknowledged immediately, and a POWER ON also removes it, so no extra reset step is required.
Why is the setpoint velocity limiting inactive?
Because the acceptance test mode is active — one of its effects is that the setpoint velocity limiting is deactivated. The SI Motion setpoint speed limit that is effectively applied can be read at r9733.
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 C30xxx group · SINAMICS manuals · Siemens manuals