What it means
C30714 (SI Motion P2: Safely-Limited Speed exceeded) means the drive has moved faster than the velocity limit value stored in p9331 — the active Safely-Limited Speed (SLS) limit was exceeded. SI stands for Safety Integrated. The drive is stopped as a result of the stop response configured in p9363, and the message value records which limit tripped. All the manuals describing this code give the same cause, so the behaviour is identical on every family.
Why it appears
- The drive moved faster than the velocity limit value specified in p9331, i.e. one of the SLS limits (SLS1, SLS2, SLS3 or SLS4) was exceeded.
- Where the message value list includes it (S120, S150, G130 and G150), the message is also raised when the encoder limit frequency is exceeded.
What to check
- Check the traversing/motion program in the control.
- Check the limits for the 'SLS' function and, if required, adapt p9331.
Reading the message value
The drive stores a number in the message value that identifies the exceeded limit; the value is interpreted as a decimal number.
- S120, S150, G130 and G150: the message value is read from r9749. 100 = SLS1 exceeded, 200 = SLS2 exceeded, 300 = SLS3 exceeded, 400 = SLS4 exceeded, 1000 = encoder limit frequency exceeded.
- G120: the message value is read from r2124. 100 = SLS1 exceeded, 200 = SLS2 exceeded, 300 = SLS3 exceeded, 400 = SLS4 exceeded.
Parameters the manual names
- p9331 — SI Motion SLS limit values: the velocity limit values whose exceedance raised C30714; check them and adapt p9331 if required. (Motor Module parameter; on the G120 it belongs to processor 2.)
- p9363 — SI Motion SLS stop response: the stop response the drive executed when it stopped after the limit was exceeded.
- r9749 — SI message value: read the message value here as a decimal number on S120, S150, G130 and G150 to see which limit was exceeded.
- r2124 — alarm value: on the G120 the message value is read here instead of r9749.
Acknowledging and restarting
The manuals describe how the message can be acknowledged without a POWER ON (safe acknowledgment): via the Terminal Module 54F (TM54F), via the onboard F-DI (only CU310-2), via PROFIsafe, or via the machine control panel. On the G120, the manual notes that the message can be acknowledged using Acknowledge internal event
.
What differs between the drive families
Straight from the manuals' own fields — C30714 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. 3007 |
| G130, G150 | NONE | IMMEDIATELY (POWER ON) | Safety monitoring channel has identified an error (10) | None | SINAMICS G130, G150 List Manual · p. 1699 |
| G120 | NONE | IMMEDIATELY (POWER ON) | Safety monitoring channel has identified an error (10) | — | SINAMICS G120 · p. 929 |
The drives this code lives on
C30714 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 SINAMICS fault C30714 mean?
It is the SI Motion P2 message Safely-Limited Speed exceeded: the drive moved faster than the velocity limit value in p9331 and was stopped with the stop response configured in p9363. The message value shows which limit was exceeded.
How do I acknowledge C30714?
On S120, S150, G130 and G150 the manual lists a safe acknowledgment without a POWER ON via the Terminal Module 54F (TM54F), the onboard F-DI (only CU310-2), PROFIsafe or the machine control panel. On the G120, the message can be acknowledged using 'Acknowledge internal event'.
Which parameter holds the SLS limit that C30714 monitors?
p9331 holds the SI Motion SLS limit values. After checking the traversing/motion program in the control, check the limits for the SLS function and adapt p9331 if required.
Where can I read the message value of C30714?
In r9749 on S120, S150, G130 and G150, and in r2124 on the G120, in each case interpreted as a decimal number. 100 to 400 mean SLS1 to SLS4 were exceeded; 1000 means the encoder limit frequency was exceeded (where the list includes 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