What it means
F30837 is raised by the power unit when a fault is detected on the DRIVE-CLiQ component concerned. The manual explicitly notes that faulty hardware cannot be excluded. The message value tells you which component reported the fault and why it did so — see the decoding below before you start working through the checks.
Why it appears
- Fault cause 32 (= 20 hex): error in the telegram header.
- Fault cause 35 (= 23 hex): receive error — the telegram buffer memory contains an error.
- Fault cause 66 (= 42 hex) and fault cause 67 (= 43 hex): send error — the telegram buffer memory contains an error.
What to check
- Check the DRIVE-CLiQ wiring — interrupted cable, contacts and similar.
- Check the electrical cabinet design and the cable routing for EMC compliance.
- If required, use another DRIVE-CLiQ socket (p9904).
- Replace the component involved.
Reading the message value
- The message value has two placeholders: %1 is the component number, %2 is the fault cause.
- The drive codes this information in the message value, which you read in r0949 or r2124, as 0000yyxx hex.
- yy = component number.
- xx = error cause.
Parameters the manual names
- r0949 — fault value: read the coded message value (0000yyxx hex) here to identify the component number and the fault cause.
- r2124 — alarm value: carries the same coded value for this message.
- p9904 — topology comparison acknowledge differences: comes into play when you move the connection to another DRIVE-CLiQ socket as the manual's remedy allows.
Acknowledging and restarting
When this fault occurs, the power unit is switched off (OFF2) and the fault must be acknowledged immediately. Remove the cause first — work through the checks above — then acknowledge the fault; only then will the drive start again. If the fault keeps returning after the wiring and EMC checks, plan on replacing the component involved, since the manual does not exclude faulty hardware.
The same on every family
Every manual that describes F30837 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Power Module | SINAMICS S120, S150 List Manual · p. 3017 |
| G130, G150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | Power Module | SINAMICS G130, G150 List Manual · p. 1708 |
The drives this code lives on
F30837 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 SINAMICS fault F30837 mean?
The power unit has detected a fault on the DRIVE-CLiQ component concerned, and the manual states that faulty hardware cannot be excluded. The message value tells you which component is involved and the specific fault cause.
How do I decode the F30837 message value?
Read r0949 (or r2124): the value is coded 0000yyxx hex, where yy is the component number and xx is the error cause. Cause 32 (= 20 hex), for example, is an error in the telegram header.
How do I clear fault F30837?
Check the DRIVE-CLiQ wiring and the EMC-compliant cabinet design and cable routing, move to another DRIVE-CLiQ socket (p9904) if required, and replace the component involved as the last step. Afterwards the fault must be acknowledged immediately.
Could F30837 be caused by defective hardware?
Yes. The manual explicitly says that faulty hardware cannot be excluded, which is why replacing the component involved is part of the remedy.
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