What it means
F40003 reports that a fault has occurred at the drive object connected at DRIVE-CLiQ socket X103. The code itself only names the socket through which the affected drive object is connected; which fault actually occurred first is stored by the drive as a fault value in r0949, to be interpreted as a decimal number. The G130/G150 and S120/S150 manuals describe this code identically, so one procedure covers both.
Why it appears
- A fault has been detected at the drive object connected via DRIVE-CLiQ socket X103.
What to check
- Read the fault value in r0949 and interpret it as a decimal number: it is the first fault that has occurred for this drive object.
- Evaluate the fault buffer of the specified drive object to establish which fault was reported behind F40003.
Reading the message value
- The drive writes the fault value into r0949; interpret it as a decimal number.
- Value: the first fault that has occurred for this drive object.
Parameters the manual names
- r0949 — fault value: read it as a decimal number to identify the first fault that has occurred for the drive object at X103.
Acknowledging and restarting
Acknowledge the fault immediately. F40003 itself triggers no automatic shutdown; the fault that actually occurred is identified from the fault value in r0949 and from the fault buffer of the affected drive object.
The same on every family
Every manual that describes F40003 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | NONE | IMMEDIATELY | General drive fault (19) | None | SINAMICS G130, G150 List Manual · p. 1922 |
| S120, S150 | NONE | IMMEDIATELY | General drive fault (19) | None | SINAMICS S120, S150 List Manual · p. 3279 |
The drives this code lives on
F40003 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 F40003 mean on a SINAMICS drive?
It reports that a fault has occurred at the drive object connected at DRIVE-CLiQ socket X103. The code names the socket, not the fault itself; the fault value in r0949, read as a decimal number, identifies the first fault that occurred for that drive object.
How do I clear fault F40003?
Evaluate the fault buffer of the drive object specified in the message and read r0949 as a decimal number to see the first fault that occurred. Then acknowledge the fault immediately.
Does F40003 stop the drive?
No automatic action is triggered by this code itself, but the fault must be acknowledged immediately.
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