What it means
The drive raises this fault when the brake is supplied with voltage via terminal X4.1 and is therefore released. The manual describes this as a state used for mounting purposes. While the fault is active, the drive coasts down and does not restart until the condition has been removed and the fault acknowledged.
Why it appears
- The brake is fed with its supply voltage at terminal X4.1 and is released as a result — an external release that is meant for mounting work.
What to check
- If the external release is no longer required, remove the power supply at terminal X4.1 again so that the brake is no longer fed from there.
Acknowledging and restarting
After the brake supply at terminal X4.1 has been removed again, acknowledge the fault immediately. The drive can only be restarted once its power supply has been switched off and switched back on.
The same on every family
Every manual that describes F30631 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | IMMEDIATELY (POWER ON) | External measured value / signal state outside the permissible range (16) | None | SINAMICS S120, S150 List Manual · p. 2978 |
| G130, G150 | OFF2 | IMMEDIATELY (POWER ON) | External measured value / signal state outside the permissible range (16) | None | SINAMICS G130, G150 List Manual · p. 1680 |
The drives this code lives on
F30631 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 F30631 mean on a SINAMICS drive?
It means the brake is being supplied with voltage via terminal X4.1 and is released — a state the manual describes as being for mounting purposes. The drive coasts down while this fault is active.
How do I clear fault F30631?
If the release is no longer needed, remove the power supply at terminal X4.1 again, then acknowledge the fault immediately. The drive can only restart after its power supply has been switched off and on again.
Why is the brake released although the drive is stopped?
Because the brake is being fed voltage at terminal X4.1, which the drive reports as an active external release. Removing the supply at X4.1 ends this state.
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