What it means
F37875 is raised when the DRIVE-CLiQ communication from the DRIVE-CLiQ component involved to the Control Unit signals that the supply voltage has failed. For this code the manual decodes one fault cause: 9 (= 09 hex), meaning the power supply voltage for the components has failed. The message value identifies which component reported the failed supply, so the affected DRIVE-CLiQ component can be located before any wiring is opened.
Why it appears
- The DRIVE-CLiQ communication from the component involved to the Control Unit signals that the supply voltage has failed.
- Fault cause 9 (= 09 hex): the power supply voltage for the components has failed.
What to check
- Carry out a POWER ON — switch the supply off and back on again.
- Check the power supply voltage wiring for the DRIVE-CLiQ component (interrupted cable, contacts, ...).
- Check the dimensioning of the power supply for the DRIVE-CLiQ component.
Reading the message value
- The message value carries two items: the component number (%1) and the fault cause (%2).
- The manual codes both items in the message value (r0949/r2124) as 0000yyxx hex: yy = component number, xx = error cause.
- Fault cause 9 (= 09 hex): The power supply voltage for the components has failed.
Parameters the manual names
- r0949 — fault value: read the coded message value here; in the 0000yyxx hex pattern, yy gives the component number and xx the error cause.
- r2124 — alarm value: the manual specifies the same 0000yyxx hex coding for it alongside the fault value.
Acknowledging and restarting
The drive is stopped by this fault and it must be acknowledged before it will start again; acknowledgement is due immediately. In practice, follow the remedy in order: POWER ON (switch-off/switch-on) first, then the wiring and dimensioning checks above; once the supply voltage for the DRIVE-CLiQ component is restored, acknowledge the fault and restart the drive.
The same on every family
Every manual that describes F37875 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF1 (OFF2) | IMMEDIATELY | Supply voltage fault (undervoltage) (3) | None | SINAMICS S120, S150 List Manual · p. 3274 |
The drives this code lives on
F37875 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F37875 mean on SINAMICS S120 or S150?
The HF Damping Module signals over DRIVE-CLiQ to the Control Unit that the supply voltage has failed. The fault cause is 9 (= 09 hex): the power supply voltage for the components has failed.
How do I clear fault F37875?
Carry out a POWER ON (switch-off/switch-on) first, then check the power supply voltage wiring for the DRIVE-CLiQ component (interrupted cable, contacts) and check the dimensioning of its power supply.
What is stored in the fault value of F37875?
The component number and the fault cause, coded in r0949 as 0000yyxx hex (yy = component number, xx = error cause). A fault cause of 9 means the power supply voltage for the components has failed.
How is F37875 acknowledged?
The fault must be acknowledged immediately. Restore the supply voltage per the remedy — starting with a POWER ON — then acknowledge the fault and restart the drive.
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 F37xxx group · SINAMICS manuals · Siemens manuals