What it means
F30851 is raised when a DRIVE-CLiQ communication error occurs from the power unit to the Control Unit involved and the DRIVE-CLiQ component did not set the sign-of-life to the Control Unit. In concrete terms, the fault cause is 10 (= 0A hex): the sign-of-life bit in the receive telegram is not set. The message value tells you which component is affected and what exactly the drive observed.
Why it appears
- A DRIVE-CLiQ communication error has occurred in the path from the power unit to the Control Unit involved.
- The DRIVE-CLiQ component did not set its sign-of-life to the Control Unit.
- The fault cause reported is 10 (= 0A hex): the sign-of-life bit in the receive telegram is not set.
What to check
- Deselect functions that are not required.
- If required, increase the sampling times (p0112, p0115).
- Replace the component involved — the power unit or the Control Unit.
Reading the message value
- The message value carries two pieces of information: %1 is the component number, %2 is the fault cause.
- The individual information is coded in the message value (r0949/r2124) as 0000yyxx hex: yy = component number, xx = error cause.
- For this code the fault cause is 10 (= 0A hex), meaning the sign-of-life bit in the receive telegram is not set.
Parameters the manual names
- r0949 (fault value) — read the coded message value of this fault here (0000yyxx hex) to identify the component number and the fault cause.
- r2124 (alarm value) — named by the manual alongside r0949 as the place where the message value information is coded.
- p0112 (t_samp for p0115) — pre-setting for the sampling time of p0115; increase it together with p0115 if the remedy requires longer sampling times.
- p0115 (t_samp suppl_fct) — sampling time for supplementary functions; increase it if required as part of the remedy for this fault.
Acknowledging and restarting
Rectify the cause first, then acknowledge the fault — this message is marked for immediate acknowledgment. Once it has been acknowledged and the power unit is again setting its sign-of-life to the Control Unit, the drive can be restarted.
What differs between the drive families
Straight from the manuals' own fields — F30851 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Infeed: OFF2 (NONE, OFF1) Servo: OFF2 (NONE, OFF1, OFF3) Vector: OFF2 (NONE, OFF1, OFF3) Hla: OFF2 (NONE, OFF1, OFF3) | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Power Module | SINAMICS S120, S150 List Manual · p. 3018 |
| G130, G150 | Vector: OFF2 (NONE, OFF1, OFF3) Infeed: OFF2 (NONE, OFF1) | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Power Module | SINAMICS G130, G150 List Manual · p. 1709 |
The drives this code lives on
F30851 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 fault F30851 mean on a SINAMICS drive?
It is a DRIVE-CLiQ communication error from the power unit to the Control Unit: the power unit did not set the sign-of-life bit in its receive telegram (fault cause 10, i.e. 0A hex).
How do I fix fault F30851?
Deselect functions that are not required, increase the sampling times p0112 and p0115 if required, and replace the component involved — the power unit or the Control Unit. Then acknowledge the fault immediately.
Where do I read the fault value of F30851?
In r0949 (fault value) or r2124 (alarm value). It is coded 0000yyxx hex, where yy is the component number and xx the fault cause — here 10 (= 0A hex).
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 F30xxx group · SINAMICS manuals · Siemens manuals