What it means
This safety message of the SI Motion P2 group reports that the acceleration limit of the Safely-Limited Acceleration function (SLA) has been exceeded. The drive is stopped as a result of the stop response configured in p9379. The message value stored in r9749 shows whether the coarse or the fine acceleration monitoring raised the message, and the two cases are analyzed with different diagnostics parameters.
Why it appears
- The acceleration limit for the Safely-Limited Acceleration (SLA) function was exceeded.
What to check
- Check the traversing/motion program in the control.
- Check the acceleration limit set for the SLA function and, if required, adapt it (p9378).
- Read the message value in r9749 (interpret it as a decimal number) and analyze the cause: for message value 0, use r9714[0] and r9714[3]; for message value 1, use r9789[0], r9789[1] and r9789[2].
- Carry out a safe acknowledgment.
Reading the message value
- The drive stores the message value in r9749; interpret it as a decimal number.
- 0: the monitoring of the coarsely resolved acceleration has violated the acceleration limit.
- 1: the monitoring of the finely resolved acceleration and possibly filtered acceleration has violated the acceleration limit.
Parameters the manual names
- p9378 — SI Motion SLA acceleration limit (MM): check this limit and adapt it if required when C30717 occurs.
- p9379 — SI Motion SLA stop response (Motor Module): sets the stop response with which the drive is stopped when the SLA acceleration limit is exceeded.
- r9749 — SI message value: read the message value here (interpret decimal) to see which acceleration monitoring has tripped.
- r9714 — CO: SI motion diagnostics velocity: with message value 0, analyze the cause using r9714[0] and r9714[3].
- r9789 — CO: SI Motion SLA acceleration diagnostics: with message value 1, analyze the cause using r9789[0], r9789[1] and r9789[2].
Acknowledging and restarting
The message is cleared by carrying out a safe acknowledgment, as the remedy for this message requires.
The same on every family
Every manual that describes C30717 gives it the same reaction, acknowledgement and message class.
| 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. 3009 |
The drives this code lives on
C30717 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault C30717 SI Motion P2: SLA limit exceeded mean?
The acceleration limit of the Safely-Limited Acceleration (SLA) safety function was exceeded. The drive is stopped with the stop response configured in p9379.
How do I fix fault C30717 on a SINAMICS S120 or S150?
Check the traversing/motion program in the control, check the SLA acceleration limit in p9378 and adapt it if required, then carry out a safe acknowledgment. Depending on the message value, also analyze r9714[0] and r9714[3] (value 0) or r9789[0], r9789[1] and r9789[2] (value 1).
What does the message value of C30717 in r9749 mean?
Interpreted as a decimal number: 0 means the coarsely resolved acceleration monitoring violated the limit, 1 means the finely resolved and possibly filtered acceleration monitoring violated it.
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
