What it means
F40875 belongs to the CX32 DRIVE-CLiQ (CU) message group: the DRIVE-CLiQ communication from the DRIVE-CLiQ component involved reports to the Control Unit (CU) that the supply voltage has failed. The fault cause is 9 (= 09 hex), meaning the power supply voltage for the components has failed. The drive responds with OFF1 (in certain cases OFF2), and the fault must be acknowledged immediately before the drive can run again.
Why it appears
- The DRIVE-CLiQ component involved signals to the Control Unit, via the DRIVE-CLiQ communication, that its supply voltage has failed.
- The reported fault cause is 9 (= 09 hex): the power supply voltage for the components has failed.
What to check
- Carry out a POWER ON — switch the drive off and on again.
- Check the supply voltage wiring of the DRIVE-CLiQ component, looking for an interrupted cable, poor contacts and similar defects.
- Check the dimensioning of the DRIVE-CLiQ component power supply.
Reading the message value
- The message value combines two items: the component number (%1) and the fault cause (%2).
- The drive codes both together in the message value r0949/r2124 as 0000yyxx hex: yy = component number, xx = error cause.
- An error cause of 9 (= 09 hex) stands for the failed power supply voltage for the components.
Parameters the manual names
- r0949 (fault value): read the coded message value 0000yyxx hex here to identify which DRIVE-CLiQ component (yy) reported the failed supply voltage and which error cause (xx) it gave.
- r2124 (alarm value): the value in which the drive stores the same coded information (0000yyxx hex) alongside r0949.
Acknowledging and restarting
The remedy is a POWER ON: switch the drive off and on again. Before returning the drive to service, check the supply voltage wiring of the DRIVE-CLiQ component and the dimensioning of its power supply. Once the cause is corrected, acknowledge the fault immediately; the drive can then be restarted.
What differs between the drive families
Straight from the manuals' own fields — F40875 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | OFF1 (OFF2) | IMMEDIATELY | Supply voltage fault (undervoltage) (3) | DRIVE-CLiQ Hub Module (Hub) | SINAMICS G130, G150 List Manual · p. 1929 |
| S120, S150 | OFF1 (OFF2) | — | Supply voltage fault (undervoltage) (3) | DRIVE-CLiQ Hub Module (Hub) | SINAMICS S120, S150 List Manual · p. 3285 |
The drives this code lives on
F40875 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 F40875 mean on a SINAMICS drive?
A DRIVE-CLiQ component has told the Control Unit over DRIVE-CLiQ that its supply voltage has failed. Fault cause 9 (= 09 hex) means the power supply voltage for the components has failed.
How do I fix fault F40875?
Carry out a POWER ON (switch-off/switch-on), then check the supply voltage wiring of the DRIVE-CLiQ component (interrupted cable, contacts) and the dimensioning of its power supply. Acknowledge the fault immediately afterwards.
How is the F40875 message value decoded?
The drive codes the component number and the fault cause together as 0000yyxx hex in r0949/r2124: yy is the component number, xx the error cause. For this fault the cause is 9 (= 09 hex), the failed power supply voltage.
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 F40xxx group · SINAMICS manuals · Siemens manuals