What it means
C30708 is a safety message raised by the Safety Integrated (SI) motion monitoring: a STOP C has been initiated for the drive. The drive brakes along the OFF3 ramp and «Safe Operating Stop» (SOS) is activated once the parameterized time has expired; the transition time from STOP C to SOS is set in p9552 in the Control Unit. Abbreviations follow the manual: SI = Safety Integrated, SOS = Safe Operating Stop, SBH = safe operating stop.
Why it appears
- A stop request came from the higher-level control.
- The message appears as a subsequent response to C30714 «SI Motion MM: Safely-Limited Speed exceeded».
- The message appears as a subsequent response to C01715 «SI Motion CU: Safely-Limited Position exceeded».
- The message appears as a subsequent response to C30716 «SI Motion MM: tolerance for safe motion direction exceeded».
What to check
- Remove the cause of the fault at the higher-level control.
- Carry out a diagnostics routine for the messages C30714, C30715 and C30716, since the STOP C can be their subsequent response.
Parameters the manual names
- p9552 — SI Motion transition time from STOP C to SOS (SBH) in the Control Unit; it determines how long the braking along the OFF3 ramp lasts before the drive switches into Safe Operating Stop.
Acknowledging and restarting
Acknowledge the message immediately; the specified acknowledgement includes a POWER ON. The manual additionally describes a safe acknowledgement without POWER ON, possible via the Terminal Module 54F (TM54F), the onboard F-DI (only CU310-2), PROFIsafe or the machine control panel. Once the cause of the STOP C has been removed and the message acknowledged, the drive can be restarted.
The same on every family
Every manual that describes C30708 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | STOP2 | IMMEDIATELY (POWER ON) | Safety monitoring channel has identified an error (10) | None | SINAMICS S120, S150 List Manual · p. 3000 |
| G130, G150 | STOP2 | IMMEDIATELY (POWER ON) | Safety monitoring channel has identified an error (10) | None | SINAMICS G130, G150 List Manual · p. 1694 |
The drives this code lives on
C30708 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 message C30708 mean on a SINAMICS drive?
The Safety Integrated motion monitoring has initiated a STOP C: the drive brakes along the OFF3 ramp and switches into Safe Operating Stop (SOS) once the transition time set in p9552 has expired.
How is C30708 acknowledged?
The message is acknowledged immediately, normally with a POWER ON. A safe acknowledgement without POWER ON is possible via the Terminal Module 54F (TM54F), onboard F-DI (only CU310-2), PROFIsafe or the machine control panel.
Why does C30708 appear?
Either the higher-level control issued a stop request, or the message is a subsequent response to C30714, C01715 or C30716.
What is p9552 used for with C30708?
p9552 sets the transition time from STOP C to SOS (SBH) in the Control Unit, i.e. how long the OFF3-ramp braking lasts before Safe Operating Stop becomes active.
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